Oil pump, fuel system and vehicle

Abstract

The invention relates to an oil pump, a fuel system and a vehicle. The oil pump comprises an oil storage barrel internally provided with an oil storage space; the pumping device is provided with a pumping channel, the first pumping end of the pumping channel communicates with the oil storage space, and the pumping channel is configured to drive fuel oil to selectively flow; the first filter is provided with a to-be-filtered end and a filtered end which are communicated, the filtered end is used for being communicated with a fuel oil pipeline of the fuel oil system, the to-be-filtered end and the filtered end are connected to the second pumping end of the pumping channel in parallel, and the second pumping end is selectively communicated with the to-be-filtered end and the filtered end in a one-way mode. Therefore, according to the oil pump, under the condition that the requirement for supplying fuel oil is met, the fuel oil pipeline in the fuel oil system can be in a micro-pressure state or a normal-pressure state through the oil pump, and even fuel oil in the fuel oil pipeline can be emptied.

Description

Technical Field

[0001] The present application relates to the field of vehicles, and in particular to an oil pump, a fuel system and a vehicle. Background Art

[0002] With the rapid development of the automotive industry and the continued growth in vehicle ownership, road traffic safety issues are becoming increasingly prominent. When a vehicle experiences severe mechanical impact during an accident, it can lead to risks such as fuel leaks, electrical shorts, or ignition of high-temperature components. These risks can cause secondary injuries such as spontaneous combustion, seriously threatening the safety of passengers and the accident scene. Summary of the Invention

[0003] Based on this, it is necessary to provide an oil pump to address the above problems.

[0004] An oil pump comprising:

[0005] An oil storage barrel, wherein the oil storage barrel is provided with an oil storage space;

[0006] a pumper, the pumper being provided with a pumping channel, a first pumping end of the pumping channel being in communication with the oil storage space, and the pumping channel being configured to drive the fuel to selectively flow;

[0007] The first filter has a connected filtered end and a filtered end, the filtered end is used to communicate with the fuel pipeline of the fuel system, the filtered end and the filtered end are connected in parallel to the second pumping end of the pumping channel, and the second pumping end and the filtered end are selectively unidirectionally conductive.

[0008] In one embodiment, the oil pump further includes: a first valve body and a second valve body, the first valve body is opened or closed to control the one-way connection or disconnection between the pumping channel and the end to be filtered, and the second valve body is opened or closed to control the one-way connection or disconnection between the filtered end and the pumping channel;

[0009] The first valve body allows the fuel to flow from the pumping channel to the end to be filtered, and the second valve body allows the fuel to flow from the filtered end to the pumping channel.

[0010] In one embodiment, the first valve body is configured as a one-way valve. When the pressure in the pumping channel is greater than the pressure at the end to be filtered, the first valve body opens to conduct one-way communication between the pumping channel and the end to be filtered; and / or,

[0011] The second valve body is configured as a one-way valve. When the pressure at the filtered end is greater than the pressure at the pumping channel, the second valve body opens to conduct one-way communication between the filtered end and the pumping channel.

[0012] In one embodiment, the oil pump further includes: a first connecting member, the first connecting member being provided with a first connecting interface, a second connecting interface, and a third connecting interface that are interconnected;

[0013] The first communication interface is connected to the second pumping end;

[0014] The second communication interface is connected to the end to be filtered, and the first valve body is configured to control the second communication interface and the end to be filtered to selectively conduct one-way communication;

[0015] The third communication interface is connected to the filtered end, and the second valve body is configured to control the third communication interface and the filtered end to selectively conduct in one direction.

[0016] In one embodiment, the first filter is provided with a first filter interface, a second filter interface and a third filter interface, wherein the first filter interface is connected to the end to be filtered, and the second filter interface and the third filter interface are connected in parallel to the filtered end;

[0017] The first filter interface is connected to the second communication interface, the second filter interface is connected to the third communication interface, and the third filter interface is used to connect to the fuel pipeline;

[0018] The first valve body is assembled on the first filter interface or the second communication interface, and the second valve body is assembled on the second filter interface or the third communication interface.

[0019] In one embodiment, a first assembly groove is provided in the first filter interface, the first valve body is assembled in the first assembly groove, and the second communication interface is sleeved on the outside of the first filter interface;

[0020] A second assembly groove is provided in the second filter interface, the second valve body is assembled in the second assembly groove, the third communication interface is sleeved on the outside of the second filter interface, and part of the structure of the second valve body is clamped between the second filter interface and the third communication interface.

[0021] In one embodiment, the oil pump further comprises: a pressure regulating valve, the pressure regulating valve being provided with a pressure regulating interface and a pressure regulating outlet, the pressure regulating interface and the pressure regulating outlet being selectively unidirectionally connected; wherein,

[0022] The first communication member is further provided with a fourth communication interface, the fourth communication interface is connected to the first communication interface, and the fourth communication interface is also connected to the pressure regulating interface, and the pressure regulating outlet is connected to the oil storage space; or,

[0023] The first filter is further provided with a fourth filter interface, which is connected in parallel with the second filter interface and the third filter interface at the filtered end, and is connected to the pressure regulating interface, and the pressure regulating outlet is connected to the oil storage space.

[0024] In one embodiment, the oil pump further includes: a second connecting member, the second connecting member being provided with a fifth connecting interface, a sixth connecting interface, and a seventh connecting interface that are interconnected;

[0025] The first filter is provided with a fifth filter interface and a sixth filter interface, the fifth filter interface is connected to the end to be filtered, and the fifth filter interface is connected to the second communication interface, and the first valve body is configured to control the second communication interface and the fifth filter interface to selectively conduct one-way communication;

[0026] The sixth filter interface is connected to the filtered end, and the sixth filter interface is connected to the sixth communication interface;

[0027] The seventh communication interface is used to connect to the fuel line.

[0028] In one embodiment, the oil pump further includes: a pressure regulating valve, the pressure regulating valve being provided with a pressure regulating interface and a pressure regulating outlet, the pressure regulating interface and the pressure regulating outlet being selectively unidirectionally conductive;

[0029] The second communication component is further provided with an eighth communication interface, which is communicated with the fifth communication interface, and the eighth communication interface is connected to the pressure regulating interface, and the pressure regulating outlet is communicated with the oil storage space.

[0030] In one embodiment, the pumping device is provided with a first pump interface and a second pump interface, and the first pump interface and the second pump interface are connected in parallel to the second pumping end;

[0031] The first pump interface is connected to the end to be filtered, and the first valve body is configured to control the first pump interface and the end to be filtered to selectively conduct one-way communication;

[0032] The second pump interface is connected to the filtered end, and the second valve body is configured to control the filtered end and the second pump interface to selectively conduct in one direction.

[0033] In one embodiment, the first filter is provided with a first filter interface, a second filter interface and a third filter interface, wherein the first filter interface is connected to the end to be filtered, and the second filter interface and the third filter interface are connected in parallel to the filtered end;

[0034] The first filter interface is connected to the first pump interface, and the first valve body is configured to control the first filter interface and the first pump interface to selectively conduct one-way communication.

[0035] The second filter interface is connected to the second pump interface, and the second valve body is configured to control the second filter interface and the second pump interface to selectively conduct one-way communication;

[0036] The third filter interface is used to connect to the fuel line.

[0037] In one embodiment, the oil pump further comprises: a pressure regulating valve, the pressure regulating valve being provided with a pressure regulating interface and a pressure regulating outlet, the pressure regulating interface and the pressure regulating outlet being selectively unidirectionally connected, and the pressure regulating outlet being connected to the oil storage space; wherein,

[0038] The first filter is further provided with a fourth filter interface, the fourth filter interface is connected in parallel with the second filter interface and the third filter interface at the filtered end, and the fourth filter interface is connected to the pressure regulating interface; or,

[0039] The pumping device is further provided with a third pump interface, which is connected in parallel with the first pump interface and the second pump interface to the second pumping end, and the third pump interface is connected to the pressure regulating interface; or,

[0040] The oil pump also includes: a third connecting piece, which is provided with a ninth connecting interface, a tenth connecting interface and an eleventh connecting interface that are interconnected. The ninth connecting interface is connected to the first pump interface, the tenth connecting interface is connected to the first filter interface, and the eleventh connecting interface is connected to the pressure regulating interface.

[0041] In one embodiment, the first filter is provided with a first filter interface and a second filter interface, the first filter interface is connected to the end to be filtered, the second filter interface is connected to the filtered end, and the first filter interface is connected to the first pump interface;

[0042] The oil pump further includes: a fourth connecting member, the fourth connecting member including a twelfth connecting interface, a thirteenth connecting interface, and a fourteenth connecting interface that are interconnected, the twelfth connecting interface being connected to the second filter interface, the thirteenth connecting interface being used to connect to the fuel line, and the fourteenth connecting interface being connected to the second pump interface;

[0043] The first valve body is configured to control the first pump interface and the first filter interface to selectively conduct one-way communication, and the second valve body is configured to control the fourteenth communication interface and the second pump interface to selectively conduct one-way communication.

[0044] In one embodiment, the oil pump further includes: a pressure regulating valve, the pressure regulating valve being provided with a pressure regulating interface and a pressure regulating outlet, the pressure regulating interface and the pressure regulating outlet being selectively unidirectionally conductive;

[0045] The oil pump also includes: a fifth connecting piece, which is provided with a fifteenth connecting interface, a sixteenth connecting interface and a seventeenth connecting interface that are interconnected, the fifteenth connecting interface is connected to the first pump interface, the sixteenth connecting interface is connected to the first filter interface, and the seventeenth connecting interface is connected to the pressure regulating interface.

[0046] In one embodiment, the first filter is provided with a first filter interface and a second filter interface, the first filter interface is connected to the end to be filtered, the second filter interface is connected to the filtered end, and the first filter interface is connected to the first pump interface;

[0047] The oil pump further includes: a sixth connecting member, the sixth connecting member being provided with an eighteenth connecting interface, a nineteenth connecting interface and a twenty-first connecting interface which are interconnected, the eighteenth connecting interface being connected to the second filter interface, the nineteenth connecting interface being used to connect to the fuel line, and the twentieth connecting interface being connected to the second pump interface;

[0048] The first valve body is configured to control the first pump interface to selectively conduct one-way communication with the first pump interface, and the second valve body is configured to control the twentieth communication interface to selectively conduct one-way communication with the second pump interface.

[0049] In one embodiment, the oil pump further includes: a pressure regulating valve, the pressure regulating valve being provided with a pressure regulating interface and a pressure regulating outlet, the pressure regulating interface and the pressure regulating outlet being selectively unidirectionally conductive;

[0050] The sixth connecting piece is further provided with a twenty-first connecting interface, which is connected to the eighteenth connecting interface, and the twenty-first connecting interface is connected to the pressure regulating interface, and the pressure regulating outlet is connected to the oil storage space.

[0051] In one embodiment, the first filter is provided with a hollow assembly through-hole, and the pump is assembled in the assembly through-hole.

[0052] In one embodiment, the oil pump further comprises: a mounting flange and an oil delivery pipe, the mounting flange being fixedly assembled with the oil storage barrel, and the mounting flange being used to assemble and cooperate with the oil storage tank of the fuel system;

[0053] The mounting flange is provided with an oil pump connecting pipe, one end of which is connected to the filtered end through an oil delivery pipe, and the other end of which is used to be connected to the fuel pipeline.

[0054] In one embodiment, the oil pump further includes a second filter, the second filter being installed in the oil storage space and configured to filter the fuel flowing into the pumping passage.

[0055] In one embodiment, the oil pump further comprises: a check valve;

[0056] The oil storage barrel is provided with an overflow port and an oil supply port, both of which are connected to the oil storage space. A check valve is assembled on the oil supply port so that the oil supply port selectively conducts one-way communication to the oil storage space and the oil storage tank of the fuel system.

[0057] In the above-mentioned oil pump, since the filtered end and the filtered end of the first filter are connected in parallel to the pumping channel, and the second pumping end is selectively connected to the filtered end and the filtered end in a one-way manner, the oil pump according to the present application can not only meet the demand for fuel supply, but also maintain the fuel line in the fuel system at a low pressure or normal pressure state, and even empty the fuel in the fuel line.

[0058] The present application further proposes a fuel system.

[0059] The fuel system includes:

[0060] An oil storage tank, wherein an oil storage cavity is provided in the oil storage tank;

[0061] According to some of the above embodiments of the oil pump, the oil pump is assembled to the oil storage tank;

[0062] A fuel line is configured to connect the oil pump to the internal combustion engine.

[0063] The present application further proposes a vehicle.

[0064] Vehicles include:

[0065] body;

[0066] According to the fuel system of some of the above embodiments, the fuel system is assembled on the vehicle body. BRIEF DESCRIPTION OF THE DRAWINGS

[0067] Figure 1 It is a three-dimensional diagram of the oil pump according to the first embodiment of the present application.

[0068] Figure 2 1 is a top view of the oil pump according to the first embodiment of the present application.

[0069] Figure 3 4 is a cross-sectional view of an oil pump according to a first embodiment of the present application.

[0070] Figure 4 This is a schematic assembly diagram of a pump, a first filter, a first connecting piece, a first valve body, and a second valve body according to the first embodiment of the present application.

[0071] Figure 5 for Figure 4 Enlarged view of point A in the middle.

[0072] Figure 6 for Figure 4 Enlarged view of point B in the middle.

[0073] Figure 7 Schematic diagram of the oil circuit of the fuel system equipped with the oil pump according to the first embodiment of the present application.

[0074] Figure 8 Schematic diagram of the oil circuit of a fuel system equipped with an oil pump according to the second embodiment of the present application.

[0075] Figure 9 Schematic diagram of the oil circuit of a fuel system equipped with an oil pump according to the third embodiment of the present application.

[0076] Figure 10 Schematic diagram of the oil circuit of a fuel system equipped with an oil pump according to the fourth embodiment of the present application.

[0077] Figure 11 Schematic diagram of the oil circuit of a fuel system equipped with an oil pump according to the fifth embodiment of the present application.

[0078] Figure 12 Schematic diagram of the oil circuit of a fuel system equipped with an oil pump according to the sixth embodiment of the present application.

[0079] Figure 13 Schematic diagram of the oil circuit of a fuel system equipped with an oil pump according to the seventh embodiment of the present application.

[0080] Figure 14 Schematic diagram of the oil circuit of a fuel system equipped with an oil pump according to the eighth embodiment of the present application.

[0081] Reference numerals:

[0082] 100, oil pump; 1, oil storage tank; 101, oil storage space; 11, overflow port; 12, oil supply port; 2, pumping device; 20, pumping channel; 201, first pumping end; 202, second pumping end; 2021, first pump interface; 2022, second pump interface; 2023, third pump interface; 21, drive motor; 3, first filter; 30, assembly through hole; 31, first filter housing; 310, first filter chamber; 3101, filter end; 3102, filtered end; 311, First filter interface; 312, second filter interface; 313, third filter interface; 314, fourth filter interface; 315, fifth filter interface; 316, sixth filter interface; 32, first filter element; 41, first valve body; 411, first valve frame; 412, first valve core; 42, second valve body; 421, second valve frame; 422, second valve core; 51, first connecting piece; 511, first connecting interface; 512, second connecting interface; 513, third connecting interface; 514, first connecting piece; 4th Unicom interface; 52, second Unicom component; 521, fifth Unicom interface; 522, sixth Unicom interface; 523, seventh Unicom interface; 524, eighth Unicom interface; 53, third Unicom component; 531, ninth Unicom interface; 532, tenth Unicom interface; 533, eleventh Unicom interface; 54, fourth Unicom component; 541, twelfth Unicom interface, 542, thirteenth Unicom interface, 543, fourteenth Unicom interface; 55, fifth Unicom component; 551, fifteenth Unicom interface; 5 52. Sixteenth connecting interface; 553. Seventeenth connecting interface; 56. Sixth connecting piece; 561. Eighteenth connecting interface; 562. Nineteenth connecting interface; 563. Twentieth connecting interface; 564. Twenty-first connecting interface; 6. Pressure regulating valve; 61. Pressure regulating interface; 62. Pressure regulating outlet; 7. Mounting flange; 71. Oil pump connecting pipe; 8. Oil delivery pipe; 9. Second filter; 10. Check valve; 2000. Fuel system; 2100. Fuel storage tank; 2200. Fuel pipeline. DETAILED DESCRIPTION

[0083] To make the above-mentioned objects, features, and advantages of the present application more clearly understood, the specific embodiments of the present application are described in detail below with reference to the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways than those described herein, and those skilled in the art can make similar improvements without violating the scope of the present application. Therefore, the present application is not limited to the specific embodiments disclosed below.

[0084] In the description of this application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0085] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include at least one of such features. In the description of this application, if the term "plurality" appears, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0086] In this application, unless otherwise specified or limited, the terms "mounted," "connected," "connected," "fixed," etc., should be interpreted broadly. For example, these terms may refer to fixed connections, removable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediary; and internal communication between two components or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0087] In this application, unless otherwise expressly specified or limited, if a first feature is described as being "above" or "below" a second feature, or similar descriptions, this may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, when a first feature is described as being "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is described as being "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0088] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only embodiment.

[0089] With the rapid development of the automotive industry and the need for energy conservation and emission reduction, vehicles have gradually shifted from purely fuel-powered vehicles to pure electric and hybrid vehicles. The range of pure electric vehicles is easily affected by various factors, and charging takes a long time. Hybrid vehicles, on the other hand, offer the economical and low-emission benefits of pure electric driving, while seamlessly switching to fuel-powered vehicles when the battery runs low, making long journeys stress-free and easily addressing the range challenge. This is one reason why hybrid vehicles are increasingly popular with users.

[0090] Hybrid vehicles combine a traditional internal combustion engine with an electric drive system. They intelligently switch modes based on driving conditions: During vehicle start-up, low-speed driving, or light loads, the electric motor alone powers the vehicle, achieving zero emissions from the battery. At high speeds, during rapid acceleration, or when the battery is low, the internal combustion engine steps in, either independently or in conjunction with the electric motor. The extended-range hybrid, a special type of hybrid, relies primarily on the electric motor; the internal combustion engine does not directly drive the wheels, but rather generates electricity for the battery and electric motor. This optimally allocates power to achieve energy savings, emissions reductions, and improved performance.

[0091] In a vehicle's fuel system, the fuel pump must pump fuel from the storage tank to the internal combustion engine at a certain oil pressure, so that the internal combustion engine consumes the fuel to output force. When a vehicle is subjected to severe mechanical impact in an accident, there is a risk of fuel leakage, electrical short circuits, or ignition of high-temperature components, which can lead to secondary injuries such as spontaneous combustion, seriously threatening the safety of passengers and the accident scene. Due to the high oil pressure in the fuel system, fuel splashes. When the splashed fuel ignites, it is extremely easy to cause a secondary accident such as spontaneous combustion of the vehicle, which not only causes irreparable damage to the vehicle, but also greatly hinders the rescue of the passengers.

[0092] See Figures 1 to 4 , and combined Figures 7 to 14 As shown, an oil pump 100 according to some embodiments of the present application includes an oil storage tank 1, a pumping device 2, and a first filter 3. The oil storage tank 1 includes an oil storage space 101, and the pumping device 2 is assembled within the oil storage space 101. The pumping device 2 is provided with a pumping channel 20, wherein a first pumping end 201 of the pumping channel 20 is in communication with the oil storage space 101, and the pumping channel 20 is configured to selectively drive the flow of fuel. The first filter 3 has a connected filtered end 3101 and a filtered end 3102. The filtered end 3102 is configured to communicate with the fuel line 2200 of the fuel system 2000. The filtered end 3101 and the filtered end 3102 are connected in parallel to the second pumping end 202 of the pumping channel 20, and the second pumping end 202 is selectively unidirectionally connected to the filtered end 3101 and the filtered end 3102.

[0093] It should be noted that, while the present application uses the fuel pump 100 as an example of a vehicle fuel system 2000, the present application is not limited thereto. For example, the fuel pump 100 may also be used in fuel systems 2000 of other vehicles, such as ships, aircraft, and the like.

[0094] For example, see Figures 1 to 4 , and combined Figures 7 to 14 As shown, in some embodiments of the present application, when the internal combustion engine of the vehicle is in operation, the pumper 2 is in the start-up operating state, and at this time, the pumper 2 is in the first start-up mode. When the pumper 2 is in the first start-up mode, the pumper 2 causes the fuel in the oil storage space 101 to be sucked into the pumping channel 20 through the first pumping end 201, so that the fuel flows along the pumping channel 20 from the first pumping end 201 to the second pumping end 202.

[0095] The filtered end 3101 and the filtered end 3102 are connected in parallel to the second pumping end 202, that is, the second pumping end 202 is connected to both the filtered end 3101 and the filtered end 3102 of the first filter 3. Since the second pumping end 202 and the filtered end 3101 are configured for one-way communication from the second pumping end 202 to the filtered end 3101, and the second pumping end 202 and the filtered end 3102 are configured for one-way communication from the filtered end 3102 to the second pumping end 202, this restricts the direction of fuel flow between the second pumping end 202 and the filtered end 3101, and restricts the direction of fuel flow between the second pumping end 202 and the filtered end 3102.

[0096] More specifically, between the second pumping end 202 and the end to be filtered 3101 , the fuel can only flow from the second pumping end 202 to the end to be filtered 3101 ; between the second pumping end 202 and the filtered end 3102 , the fuel can only flow from the filtered end 3102 to the second pumping end 202 .

[0097] Thus, when the pumper 2 is in the first activation mode, it can only pump fuel from the second pumping end 202 to the filtered end 3101. The filtered fuel then flows into the filtered end 3102, and is then delivered to the internal combustion engine through the fuel line 2200 of the fuel system 2000. As the fuel flows through the first filter 3, it flows from the filtered end 3101 to the filtered end 3102. This allows the first filter 3 to filter the fuel, preventing fuel containing impurities from being delivered to the internal combustion engine through the fuel line 2200 of the fuel system 2000, thereby improving the operating stability of the internal combustion engine. It should be understood that when the pumper 2 is in the first starting mode, there is no conduction between the second pumping end 202 and the filtered end 3102, so the fuel at the filtered end 3102 cannot flow back to the second pumping end 202, ensuring that the fuel at the filtered end 3102 can only be delivered to the internal combustion engine through the fuel pipeline 2200 of the fuel system 2000, ensuring that the fuel pipeline 2200 has a stable oil pressure to deliver the fuel to the internal combustion engine, and ensuring the working stability of the internal combustion engine.

[0098] For example, when the internal combustion engine is stopped, it no longer requires fuel supply from the fuel system 2000. This allows the pumper 2 to enter a standby mode. In this mode, the pumper 2 stops driving the fuel, allowing it to flow from the first pumping end 201 toward the second pumping end 202 along the pumping channel 20. When the pumper 2 is in standby mode, the connection between the second pumping end 202 and the filtered end 3101 is disconnected, while the connection between the second pumping end 202 and the filtered end 3102 is connected. This causes the pressure within the first filter 3 to be greater than the pressure within the pumping channel 20. Due to this pressure differential, the fuel flows from the filtered end 3102 toward the second pumping end 202, thereby causing the fuel to flow back from the first filter 3 to the pumper 2, thereby causing the fuel to flow back into the oil storage space 101.

[0099] It should be understood that since the filtered end 3102 is also connected to the fuel pipeline 2200 of the fuel system 2000, under the action of the pressure difference, the fuel in the fuel pipeline 2200 also flows back to the filtered end 3102, and finally the fuel flows through the filtered end 3102 through the pumper 2 to flow back to the oil storage space 101. As the fuel in the fuel pipeline 2200 flows back, the pressure in the fuel pipeline 2200 also decreases, so that the fuel in the fuel pipeline 2200 gradually decreases from a high-pressure state to a micro-pressure state, or even a normal pressure state.

[0100] Because the oil pressure within fuel line 2200 is at a low or normal pressure, even if fuel line 2200 ruptures after a severe mechanical impact in an accident, fuel splashing is significantly reduced. This reduces the large-scale contact between fuel and air, lowering the risk of fire and explosion, thereby protecting the lives of occupants and surrounding personnel, and reducing casualties and property damage in accidents. Furthermore, the reduced area of ​​fuel splashing allows rescue workers to more easily and safely approach the accident vehicle for rescue operations, facilitates subsequent cleanup and repair of the accident scene, and reduces fuel pollution to the environment and damage to other equipment and facilities.

[0101] Alternatively, when the internal combustion engine is stopped, the pumper 2 can be in the second starting mode. In the second starting mode, the pumper 2 drives fuel along the pumping channel 20 from the second pumping end 202 toward the first pumping end 201. Furthermore, when the pumper 2 is in the second starting mode, the second pumping end 202 and the filtered end 3101 are disconnected, while the second pumping end 202 and the filtered end 3102 are connected. This causes the pressure within the first filter 3 to be greater than the pressure within the pumping channel 20. Due to this pressure difference, the fuel flows from the filtered end 3102 toward the second pumping end 202, thereby achieving a fuel backflow from the first filter 3 to the pumper 2. This, in turn, causes the fuel in the fuel line 2200 to completely flow back into the oil storage space 101, ultimately clearing the fuel line 2200. Since the fuel in the fuel line 2200 has been emptied, when the vehicle suffers a severe mechanical impact in an accident, fuel leakage is avoided, thereby avoiding a secondary accident caused by fuel leakage and improving the safety of the vehicle.

[0102] According to the oil pump 100 of the present application, since the filtered end 3101 and the filtered end 3102 of the first filter 3 are connected in parallel to the pumping channel 20, when the pumper 2 is in the first starting mode, the second pumping end 202 and the filtered end 3101 are connected, and fuel can only flow from the second pumping end 202 to the filtered end 3101, and there is no connection between the second pumping end 202 and the filtered end 3102. This ensures that the pumper 2 pumps fuel from the oil storage space 101 to the first filter 3 at an appropriate pressure, so that the fuel is filtered by the first filter 3 and then pumped to the fuel pipeline 2200 of the fuel system 2000, and finally the fuel is supplied to the internal combustion engine. When pumper 2 is in standby mode or the second activation mode, there is no communication between second pumping end 202 and filtered end 3101, but communication between second pumping end 202 and filtered end 3102. Fuel can only flow from filtered end 3102 to second pumping end 202, thus causing fuel backflow within fuel line 2200. When pumper 2 is in standby mode, the oil pressure within fuel line 2200 is at a low or normal pressure, minimizing the risk of secondary accidents caused by fuel splashing. When pumper 2 is in the second activation mode, the fuel within fuel line 2200 is already emptied, thus preventing secondary accidents.

[0103] It should be noted that, because the pumping device 2 can have a first activation mode, a second activation mode, and a standby mode, the pumping device 2 can drive the fuel to flow in different directions, as well as when the pumping device 2 is not driving the fuel. That is, the pumping channel 20 is configured to selectively drive the fuel to flow. Furthermore, the filtered end 3101 and the filtered end 3102 are connected in parallel to the second pumping end 202. When the filtered end 3101 and the second pumping end 202 are in a conductive state, fuel can only flow from the second pumping end 202 to the filtered end 3101, establishing a one-way conductive relationship between the filtered end 3101 and the second pumping end 202. When the filtered end 3102 and the second pumping end 202 are in a conductive state, fuel can only flow from the filtered end 3102 to the second pumping end 202, establishing a one-way conductive relationship between the filtered end 3102 and the second pumping end 202. The conduction state between the filtered end 3101 and the second pumping end 202 and the conduction state between the filtered end 3102 and the second pumping end 202 are adjusted according to the working mode of the pumping device 2, that is, the second pumping end 202 and the filtered end 3101 and the filtered end 3102 are selectively unidirectionally conductive. In other words, when the second pumping end 202 and the end to be filtered 3101 are in a conductive state, the fuel can flow from the second pumping end 202 to the end to be filtered 3101, and when the second pumping end 202 and the end to be filtered 3101 are in a non-conductive state, the fuel cannot flow between the second pumping end 202 and the end to be filtered 3101; when the second pumping end 202 and the filtered end 3102 are in a conductive state, the fuel can flow from the filtered end 3102 to the second pumping end 202, and when the second pumping end 202 and the filtered end 3102 are in a non-conductive state, the fuel cannot flow between the second pumping end 202 and the filtered end 3102.

[0104] Therefore, when a vehicle is equipped with the fuel pump 100 of the present application, since the filtered end 3101 and the filtered end 3102 are connected in parallel to the pumping channel 20, the pump 2 delivers fuel to the first filter 3 and then to the internal combustion engine in the first starting mode. The pump 2 returns the fuel in the standby mode and the second starting mode. When the pump 2 is in the standby mode, the fuel line 2200 is at a low pressure or normal pressure to reduce the risk of secondary accidents. When the pump 2 is in the second starting mode, the fuel in the fuel line 2200 can be emptied, preventing secondary accidents.

[0105] It should also be noted that the oil pump 100 of the present application resolves the two completely conflicting issues of maintaining and releasing pressure within the oil pump 100, while also enabling active oil return from the oil pump 100. For example, when the vehicle is in pure electric mode, with the internal combustion engine shut down, the pump unit 2 is in standby mode, maintaining the pressure within the fuel line 2200 at a low or normal pressure (using active pressure release). Alternatively, when the pump unit 2 is in the second start-up mode, the fuel line 2200 is completely empty (using the oil pump 100 to draw oil), reducing the risk of fire caused by fuel leakage in abnormal situations such as collisions.

[0106] When the vehicle is in fuel mode and is in danger of a collision, pumper 2 can quickly enter standby mode, utilizing the pressure differential within fuel line 2200 to rapidly recirculate fuel. This reduces the risk of fire caused by a rupture in fuel line 2200, which could result in a large amount of fuel being sprayed over a wide area during an abnormal situation such as a collision. Alternatively, pumper 2 can quickly enter a second activation mode to reduce the amount of fuel in fuel line 2200. It should be understood that during this process, as the amount of fuel in fuel line 2200 decreases, the pressure within fuel line 2200 also decreases, further reducing the risk of fuel leakage.

[0107] Since the pump 2 can empty the fuel in the fuel line 2200 when in the second start-up mode, fuel leakage can be avoided during vehicle maintenance, thereby reducing the risk of fire caused by fuel leakage during maintenance, ensuring the safety of maintenance personnel, and better protecting the air, environment, and personnel health.

[0108] See Figure 2As shown, in some embodiments of the present application, the pumper 2 may include a drive motor 21 and a turbofan (not shown). The turbofan is mounted on the drive motor 21. The drive motor 21 drives the turbofan to rotate, thereby starting the fuel flow along the pumping channel 20. For example, when the pumper 2 is in a first starting mode, the drive motor 21 drives the turbofan to rotate clockwise, causing the fuel in the pumping channel 20 to flow from the first pumping end 201 toward the second pumping end 202. When the pumper 2 is in a standby mode, the drive motor 21 stops driving the turbofan. When the pumper 2 is in a second starting mode, the drive motor 21 drives the turbofan to rotate counterclockwise, causing the fuel in the pumping channel 20 to flow from the second pumping end 202 toward the first pumping end 201. It should be noted that in the above embodiments, the drive motor 21 and the turbofan are installed in the pumping channel 20, and the drive motor 21 drives the turbofan to rotate to achieve the effect of driving the fuel flow along the pumping channel 20. However, the present application is not limited to this embodiment. The pump 2 can drive the fuel to flow from the first pumping end 201 toward the second pumping end 202 in the first starting mode; drive the fuel to flow from the second pumping end 202 toward the first pumping end 201 in the second starting mode; and stop driving the fuel to flow along the pumping channel 20 in the standby mode.

[0109] See Figure 4 As shown, in some embodiments of the present application, the first filter 3 may include a first filter housing 31 and a first filter element 32. The first filter housing 31 is provided with a first filter cavity 310. The first filter element 32 is assembled within the first filter cavity 310 to define a filtered end 3101 and a filtered end 3102. After fuel flows into the filtered end 3101, it is filtered by the first filter element 32. The filtered fuel then flows into the filtered end 3102. It should be noted that in the above embodiment, the filtered end 3101 and the filtered end 3102 are defined as two spaces separated by the first filter element 32 within the first filter cavity 310. However, the present application is not limited thereto. For example, the filtered end 3101 and / or the filtered end 3102 may be an interface structure provided on the first filter housing 31, a pipeline structure connected to the first filter housing 31, or the like. The specific structures of the filtered end 3101 and the filtered end 3102 can be determined based on actual design requirements.

[0110] It should also be noted that because the filtered end 3102 is not only connected to the fuel line 2200 of the fuel system 2000 but also to the pumping channel 20 when the pumper 2 is in the second startup mode or the standby mode, the filtered end 3102 can also be connected to the pumping channel 20. As a result, as the fuel flows from the fuel line 2200 to the pumping channel 20, it can flow back to the pumping channel 20 without passing through the first filter element 32, thereby reducing the flow resistance of the fuel and increasing the return flow rate of the fuel.

[0111] Combine Figures 3 to 14 As shown, in some embodiments of the present application, the oil pump 100 further includes a first valve body 41 and a second valve body 42. The first valve body 41 is opened or closed to control the one-way connection or disconnection between the pumping channel 20 and the end to be filtered 3101, and the second valve body 42 is opened or closed to control the one-way connection or disconnection between the filtered end 3102 and the pumping channel 20. The first valve body 41 allows fuel to flow from the pumping channel 20 to the end to be filtered 3101, and the second valve body 42 allows fuel to flow from the filtered end 3102 to the pumping channel 20.

[0112] For example, in some embodiments of the present application, both the first valve body 41 and the second valve body 42 are configured as two-way valves. When the pumper 2 is in the first startup mode, the first valve body 41 is configured to be open, and when open, the first valve body 41 only allows fuel to flow from the pumping channel 20 to the filtered end 3101. The second valve body 42 is fully closed. This allows fuel to flow from the pumping channel 20 to the filtered end 3101 when the pumper 2 is in the first startup mode, but prevents fuel from flowing between the pumping channel 20 and the filtered end 3102.

[0113] When the pump unit 2 is in standby mode or the second activation mode, the second valve body 42 is in an open position, allowing fuel to flow only from the filtered end 3102 to the pumping channel 20. The first valve body 41 is fully closed. This allows fuel to flow from the filtered end 3102 to the pumping channel 20 when the pump unit 2 is in standby mode or the second activation mode, but prevents fuel from flowing between the pumping channel 20 and the filtered end 3101.

[0114] Of course, in some embodiments of the present application, both the first valve body 41 and the second valve body 42 are configured as one-way valves, or one of the first valve body 41 and the second valve body 42 is configured as a two-way valve, and the other of the first valve body 41 and the second valve body 42 is configured as a one-way valve.

[0115] For example, see Figures 4 to 6As shown, in some embodiments of the present application, both the first valve body 41 and the second valve body 42 are configured as one-way valves, wherein the first valve body 41 can be a pressure-maintaining one-way valve, and the second valve body 42 can be a non-pressure-maintaining one-way valve. When the pumper 2 is in the first startup mode, the pumper 2 drives fuel from the pumping channel 20 to the filtered end 3101. The flowing fuel automatically drives the first valve body 41 from a closed state to an open state, thereby establishing electrical communication between the second pumping end 202 and the filtered end 3101, allowing fuel to flow into the filtered end 3101. Simultaneously, the second valve body 42 is closed, preventing fuel from the filtered end 3102 from flowing back to the second pumping end 202. This ensures that the fuel from the filtered end 3102 can only be delivered to the internal combustion engine through the fuel line 2200 of the fuel system 2000. This ensures that the fuel line 2200 maintains stable oil pressure for fuel delivery to the internal combustion engine, thereby ensuring stable operation of the internal combustion engine. When the pump unit 2 is in the standby mode or the second start-up mode, the pressure at the filtered end 3102 is greater than the pressure in the pumping passage 20, causing the second valve body 42 to automatically change from a closed state to an open state, thereby establishing communication between the filtered end 3102 and the second pumping end 202 and allowing fuel to flow back from the filtered end 3102 to the pumping passage 20. Simultaneously, the first valve body 41 automatically changes from an open state to a closed state.

[0116] It should be noted that, see Figures 4 to 6 As shown, in some embodiments of the present application, both the first valve body 41 and the second valve body 42 are configured as one-way valves. The first valve body 41 is configured to allow fuel to flow from the pumping channel 20 to the filtered end 3101, while the second valve body 42 is configured to allow fuel to flow from the filtered end 3102 to the pumping channel 20. This allows the first and second valve bodies 41 and 42 to selectively open and close in response to the pressure differential generated by the operating mode of the pump 2, thereby achieving selective one-way communication between the second pumping end 202 and both the filtered end 3101 and the filtered end 3102. Therefore, configuring both the first and second valve bodies 41 and 42 as one-way valves reduces the difficulty of controlling the first and second valve bodies 41 and 42, as their open and closed states change with the pressure differential. This not only simplifies the control logic of the controller of the oil pump 100, but also improves the operational stability of the oil pump 100.

[0117] See Figures 7 to 9As shown, in some embodiments of the present application, the oil pump 100 may further include a first communication member 51, the first communication member 51 being provided with a first communication interface 511, a second communication interface 512, and a third communication interface 513, which are interconnected. The first communication interface 511 is connected to the second pumping end 202; the second communication interface 512 is connected to the end to be filtered 3101, and the first valve body 41 is configured to control the second communication interface 512 to selectively conduct one-way communication with the end to be filtered 3101; the third communication interface 513 is connected to the filtered end 3102, and the second valve body 42 is configured to control the third communication interface 513 to selectively conduct one-way communication with the filtered end 3102.

[0118] For example, see Figure 7 and Figure 8 As shown, in some embodiments of the present application, the first filter 3 is provided with a first filter interface 311, a second filter interface 312, and a third filter interface 313. The first filter interface 311 is connected to the filtered end 3101, and the second filter interface 312 and the third filter interface 313 are connected in parallel to the filtered end 3102. The first filter interface 311 is assembled and connected to the second communication interface 512, and the second filter interface 312 is assembled and connected to the third communication interface 513. The third filter interface 313 is used to connect to the fuel line 2200. The first valve body 41 is assembled to the first filter interface 311 or the second communication interface 512, and the second valve body 42 is assembled to the second filter interface 312 or the third communication interface 513.

[0119] For more details, see Figure 7 and Figure 8 As shown, because the first filter interface 311 is connected to the second communication interface 512, and the first valve body 41 is mounted on the first filter interface 311 or the second communication interface 512, the first valve body 41 is configured to selectively provide one-way communication between the first filter interface 311 and the second communication interface 512. In other words, the first valve body 41 is configured to control the second communication interface 512 to selectively provide one-way communication with the filtered end 3101. Because the second filter interface 312 is mounted to the third communication interface 513, and the second valve body 42 is mounted on the second filter interface 312 or the third communication interface 513, the second valve body 42 is configured to selectively provide one-way communication between the second filter interface 312 and the third communication interface 513. In other words, the second valve body 42 is configured to control the third communication interface 513 to selectively provide one-way communication with the filtered end 3102. The third filter interface 313 is configured to communicate with the fuel line 2200, that is, the filtered end 3102 is connected to the fuel line 2200.

[0120] Among them, see Figure 7 and Figure 8As shown, when the pumping device 2 is in the first startup mode, fuel is discharged from the pumping device 2 through the second pumping end 202 of the pumping channel 20 and then flows into the first confluence chamber of the first connecting member 51 through the first connecting port 511 of the first connecting member 51. The fuel can then be discharged from the first connecting member 51 through the second connecting port 512. The second connecting port 512 is connected to the first filter port 311. At this time, the first valve body 41 connects the second connecting port 512 and the first filter port 311, allowing the fuel to be discharged from the first connecting member 51 through the second connecting port 512 and then flow into the filter end 3101 through the first filter port 311. In other words, when the pumping device 2 is in the first startup mode, fuel is transported from the pumping channel 20 to the filter end 3101. Furthermore, when the pumping device 2 is in the first starting mode, since the second valve body 42 is in the closed state, that is, there is no communication between the second filter interface 312 and the third communication interface 513, the fuel cannot flow back from the filtered end 3102 to the pumping channel 20. In this way, when the pumping device 2 is in the first starting mode, the oil pressure in the fuel line 2200 is ensured.

[0121] When the pumping device 2 is in standby mode or the second starting mode, the first valve body 41 is closed, that is, there is no communication between the second communication interface 512 and the first filter interface 311, preventing the fuel in the first filter 3 from flowing back through the filtered end 3101 to the pumping channel 20. This causes the pressure in the first filter 3 to be greater than the pressure in the pumping channel 20. At the same time, the second valve body 42 is open, that is, there is communication between the second filter interface 312 and the third communication interface 513, allowing the fuel to flow back from the filtered end 3102 to the pumping channel 20. This achieves the effect of fuel reflux when the pumping device 2 is in standby mode or the second starting mode.

[0122] Combine Figures 4 to 6 As shown, in some embodiments of the present application, a first assembly groove is provided in the first filter interface 311, the first valve body 41 is assembled in the first assembly groove, and the second communication interface 512 is sleeved on the outside of the first filter interface 311. A second assembly groove is provided in the second filter interface 312, the second valve body 42 is assembled in the second assembly groove, the third communication interface 513 is sleeved on the outside of the second filter interface 312, and a portion of the second valve body 42 is clamped between the second filter interface 312 and the third communication interface 513.

[0123] For example, see Figures 4 to 6As shown, the second communication interface 512 is sleeved on the outside of the first filter interface 311, and a seal is sandwiched between the second communication interface 512 and the first filter interface 311, thereby ensuring the airtightness of the connection between the second communication interface 512 and the first filter interface 311. The third communication interface 513 is sleeved on the outside of the second filter interface 312, and a seal is sandwiched between the third communication interface 513 and the second filter interface 312, thereby ensuring the airtightness of the connection between the third communication interface 513 and the second filter interface 312.

[0124] like Figure 5 As shown, the first valve body 41 may include a first valve frame 411 and a first valve core 412, with the first valve core 412 being elastically connected to the first valve frame 411. When the pumping device 2 is in the first startup mode, the fuel drives the first valve core 412 to compress toward the first valve frame 411, thereby releasing the first valve core 412 from blocking the first filter interface 311, thereby allowing the second communication interface 512 and the first filter interface 311 to communicate, allowing fuel to flow from the second communication interface 512 to the first filter interface 311, thereby achieving the effect of pumping the fuel from the pumping device 2 to the first filter 3. When the pumping device 2 switches from the first startup mode to the standby mode or the second startup mode, as the force exerted by the fuel on the first valve core 412 decreases, the first valve core 412 resets to block the first filter interface 311, preventing fuel from flowing between the second communication interface 512 and the first filter interface 311.

[0125] like Figure 6 As shown, the second valve body 42 may include a second valve frame 421 and a second valve core 422, and the second valve core 422 is elastically connected to the second valve frame 421. When the pumping device 2 is in the first startup mode, the fuel drives the second valve core 422 to tightly block the second filter interface 312, preventing fuel from flowing between the third communication interface 513 and the second filter interface 312. When the pumping device 2 switches from the first startup mode to the standby mode or the second startup mode, the fuel drives the second valve core 422 to compress toward the second valve frame 421, thereby releasing the second valve core 422 from blocking the second filter interface 312, thereby connecting the third communication interface 513 and the second filter interface 312. Fuel can then flow from the second filter interface 312 to the third communication interface 513, thereby achieving the effect of fuel flowing back from the first filter 3 to the pumping device 2.

[0126] See Figure 7 and Figure 8As shown, in some embodiments of the present application, the oil pump 100 may further include a pressure regulating valve 6, which is provided with a pressure regulating port 61 and a pressure regulating outlet 62. The pressure regulating port 61 and the pressure regulating outlet 62 are selectively connected in a unidirectional manner. It should be understood that when the pumping device 2 is in the first starting mode and the oil pressure output by the pumping device 2 is greater than the oil pressure required by the internal combustion engine, the pressure regulating port 61 and the pressure regulating outlet 62 are connected, allowing the fuel to flow back from the pressure regulating port 61 to the oil storage space 101.

[0127] Among them, see Figure 7 As shown, in some embodiments, the first communication member 51 is further provided with a fourth communication interface 514, which is in communication with the first communication interface 511. Since the first communication interface 511, the second communication interface 512, and the third communication interface 513 are interconnected, the first communication interface 511, the second communication interface 512, the third communication interface 513, and the fourth communication interface 514 are interconnected. In addition, the fourth communication interface 514 is also connected to the pressure regulating interface 61, and the pressure regulating outlet 62 is in communication with the oil storage space 101.

[0128] Alternatively, see Figure 8 As shown, in some other embodiments, the first filter 3 is further provided with a fourth filter interface 314, the fourth filter interface 314 is connected in parallel with the second filter interface 312 and the third filter interface 313 at the filtered end 3102, and the fourth filter interface 314 is connected to the pressure regulating interface 61, and the pressure regulating outlet 62 is connected to the oil storage space 101.

[0129] Thus, when the oil pressure output by the pumping unit 2 exceeds the oil pressure required by the internal combustion engine, the pressure regulating port 61 and the pressure regulating outlet 62 are in a conducting state, allowing the fuel to flow back into the oil storage space 101 through the pressure regulating valve 6, thereby regulating the oil pressure. When the oil pressure output by the pumping unit 2 is less than or equal to the oil pressure required by the internal combustion engine, the pressure regulating port 61 and the pressure regulating outlet 62 are in a non-conducting state, allowing the oil pressure output by the pumping unit 2 to reach the oil pressure required by the internal combustion engine.

[0130] See Figure 9As shown, in some embodiments of the present application, the oil pump 100 may further include a second connecting member 52, which is provided with a fifth connecting port 521, a sixth connecting port 522, and a seventh connecting port 523 that are interconnected. The first filter 3 is provided with a fifth filter port 315 and a sixth filter port 316. The fifth filter port 315 is connected to the filtered end 3101 and is also connected to the second connecting port 512. The first valve body 41 is configured to control the second connecting port 512 and the fifth filter port 315 to selectively conduct one-way communication. The sixth filter port 316 is connected to the filtered end 3102 and is also connected to the sixth connecting port 522. The seventh connecting port 523 is in communication with the fuel line 2200.

[0131] For example, see Figure 9 As shown, when the pumping unit 2 is in the first start-up mode, the pumping unit 2 pumps the fuel pump 100 into the first connecting member 51. The fuel then flows out of the first connecting member 51 through the second connecting port 512 and flows through the fifth filter port 315 into the filter end 3101, where it is filtered by the first filter 3. The filtered fuel then flows into the filtered end 3102, then flows out of the first filter 3 through the sixth filter port 316 and flows through the sixth connecting port 522 into the second connecting member 52. Finally, the fuel flows through the seventh connecting port 523 of the second connecting member 52 to the fuel line 2200.

[0132] When the pumping device 2 is in the standby mode or the second starting mode, the fuel in the first filter 3 and the fuel in the fuel pipeline 2200 flow back to the second connecting member 52 through the sixth connecting interface 522 and the seventh connecting interface 523 respectively, and flow back to the first connecting member 51 through the fifth connecting interface 521, and finally achieve the effect of the fuel flowing back to the pumping device 2 through the first connecting interface 511.

[0133] See Figure 9 As shown, in some embodiments of the present application, the oil pump 100 may further include a pressure regulating valve 6, which is provided with a pressure regulating port 61 and a pressure regulating outlet 62. The pressure regulating port 61 and the pressure regulating outlet 62 are selectively unidirectional. It should be understood that when the pumping device 2 is in the first starting mode, when the oil pressure output by the pumping device 2 is greater than the oil pressure required by the internal combustion engine, the pressure regulating port 61 and the pressure regulating outlet 62 are in a conductive state, allowing the fuel to flow back from the pressure regulating port 61 to the oil storage space 101.

[0134] Among them, see Figure 9As shown, the second connecting member 52 is further provided with an eighth connecting interface 524, which is connected to the fifth connecting interface 521 and is connected to the pressure regulating interface 61. The pressure regulating outlet 62 is connected to the oil storage space 101. Thus, when the oil pressure output by the pumping device 2 is greater than the oil pressure required by the internal combustion engine, the pressure regulating interface 61 and the pressure regulating outlet 62 are in a conducting state, allowing the fuel to flow back to the oil storage space 101 through the pressure regulating valve 6, thereby achieving the effect of regulating the oil pressure. When the oil pressure output by the pumping device 2 is less than or equal to the oil pressure required by the internal combustion engine, the pressure regulating interface 61 and the pressure regulating outlet 62 are in a non-conducting state, so that the oil pressure output by the pumping device 2 can reach the oil pressure required by the internal combustion engine.

[0135] See Figures 10 to 14 As shown, in some embodiments of the present application, the pumping device 2 is provided with a first pump interface 2021 and a second pump interface 2022, which are connected in parallel to the second pumping end 202. The first pump interface 2021 is connected to the end to be filtered 3101, and the first valve body 41 is configured to control the first pump interface 2021 and the end to be filtered 3101 to selectively conduct one-way communication. The second pump interface 2022 is connected to the filtered end 3102, and the second valve body 42 is configured to control the filtered end 3102 and the second pump interface 2022 to selectively conduct one-way communication.

[0136] For example, see Figures 10 to 14 As shown, when the pumper 2 is in the first startup mode, the pumper 2 pumps fuel from the pumper 2 to the first filter 3 (the pumping channel 20 is configured to drive fuel flow from the first pumping end 201 to the second pumping end 202). Since the pumper 2 is in the first startup mode, the first valve body 41 is configured to allow fuel to flow from the first pump port 2021 to the filtered end 3101; the second valve body 42 is configured to disconnect the second pump port 2022 and the filtered end 3102. This allows fuel to flow only from the first pump port 2021 to the filtered end 3101, allowing the pumper 2 to pump fuel to the first filter 3 when in the first startup mode. After being filtered by the first filter 3, the fuel flows from the filtered end 3102 to the fuel line 2200, thereby supplying the fuel to the internal combustion engine.

[0137] See Figures 10 to 14As shown, when the pumping device 2 is in the standby mode or the second starting mode, the first valve body 41 is configured to disconnect the first pump port 2021 and the filtered end 3101; the second valve body 42 is configured to allow fuel to flow from the filtered end 3101 to the second pump port 2022. Because the first filter 3 and the fuel line 2200 are at high pressure when the pumping device 2 is in the first starting mode, when the pumping device 2 transitions from the first starting mode to the standby mode or the second starting mode, the pressure within the first filter 3 and the fuel line 2200 exceeds the pressure within the pumping channel 20. Due to this pressure differential, fuel flows back from the filtered end 3102 to the second pump port 2022, thereby achieving a fuel recirculation effect.

[0138] Therefore, when a vehicle is equipped with the fuel pump 100 of the present application, since the first pump interface 2021 selectively unidirectionally communicates with the filtered end 3101, and the filtered end 3102 selectively unidirectionally communicates with the second pump interface 2022, that is, the filtered end 3101 and the filtered end 3102 are connected in parallel to the pumping channel 20. When the pump 2 is in the first starting mode, the fuel is delivered to the first filter 3 and then supplied to the internal combustion engine. When the pump 2 is in the standby mode and the second starting mode, the fuel is returned. When the pump 2 is in the standby mode, the fuel line 2200 is in a low-pressure state or a normal pressure state to reduce the severity of secondary accidents. When the pump 2 is in the second starting mode, the fuel line 2200 is emptied to avoid secondary accidents.

[0139] See Figure 10 and Figure 11 As shown, in some embodiments of the present application, the first filter 3 is provided with a first filter interface 311, a second filter interface 312, and a third filter interface 313. The first filter interface 311 is connected to the filtered end 3101, and the second filter interface 312 and the third filter interface 313 are connected in parallel to the filtered end 3102. The first filter interface 311 is connected to the first pump interface 2021, and the first valve body 41 is configured to control the first filter interface 311 and the first pump interface 2021 to selectively conduct one-way communication. The second filter interface 312 is connected to the second pump interface 2022, and the second valve body 42 is configured to control the second filter interface 312 and the second pump interface 2022 to selectively conduct one-way communication. The third filter interface 313 is used to connect to the fuel line 2200.

[0140] For example, see Figure 10 and Figure 11As shown, in some embodiments of the present application, when the pumping device 2 is in the first startup mode, the first valve body 41 is configured to allow fuel to flow from the first pump interface 2021 to the first filter interface 311, and the second valve body 42 is configured to disconnect the second pump interface 2022 and the second filter interface 312. Thus, when the pumping device 2 is in the first startup mode, fuel can only flow from the first pump interface 2021 to the filter end 3101. That is, when the pumping device 2 is in the first startup mode, the pumping device 2 pumps fuel to the first filter 3. After being filtered by the first filter 3, the fuel flows through the third filter interface 313 to the fuel line 2200, thereby supplying the fuel to the internal combustion engine.

[0141] See Figure 10 and Figure 11 As shown, in some embodiments of the present application, when the pumping device 2 is in the standby mode or the second starting mode, the first valve body 41 is configured to disconnect the first pump interface 2021 and the first filter interface 311; the second valve body 42 is configured to allow fuel to flow from the second filter interface 312 to the second pump interface 2022. Because the first filter 3 and the fuel line 2200 are at high pressure when the pumping device 2 is in the first starting mode, when the pumping device 2 transitions from the first starting mode to the standby mode or the second starting mode, the pressure within the first filter 3 and the fuel line 2200 is greater than the pressure within the pumping channel 20. Due to the pressure difference, the fuel flows back from the second filter interface 312 to the second pump interface 2022, thereby achieving a fuel reflux effect. It should be noted that since the second filter interface 312 and the third filter interface 313 are connected in parallel to the filtered end 3102, when the pumper 2 is in standby mode or the second start-up mode, the fuel in the fuel pipeline 2200 will first flow back from the third filter interface 313 to the filtered end 3102, and then flow back from the second filter interface 312 to the second pump interface 2022.

[0142] Thus, when a vehicle is equipped with the fuel pump 100 of the present application, since the first pump interface 2021 and the first filter interface 311 are selectively unidirectionally connected, and the filtered end 3102 and the second filter interface 312 are selectively unidirectionally connected, that is, the filtered end 3101 and the filtered end 3102 are connected in parallel to the pumping channel 20. When the pump 2 is in the first starting mode, the fuel is delivered to the first filter 3 and then supplied to the internal combustion engine. When the pump 2 is in the standby mode and the second starting mode, the fuel is returned. When the pump 2 is in the standby mode, the fuel line 2200 is in a low-pressure state or a normal pressure state to reduce the severity of secondary accidents. When the pump 2 is in the second starting mode, the fuel line 2200 is emptied to avoid secondary accidents.

[0143] See Figures 10 to 12As shown, in some embodiments of the present application, the oil pump 100 further includes a pressure regulating valve 6, which is provided with a pressure regulating port 61 and a pressure regulating outlet 62. The pressure regulating port 61 and the pressure regulating outlet 62 are selectively unidirectionally conductive. It should be understood that when the pumping unit 2 is in the first starting mode, when the oil pressure output by the pumping unit 2 is greater than the oil pressure required by the internal combustion engine, the pressure regulating port 61 and the pressure regulating outlet 62 are conductive, allowing the fuel to flow back from the pressure regulating port 61 to the oil storage space 101.

[0144] Among them, see Figure 10 As shown, in some embodiments, the first filter 3 is further provided with a fourth filter interface 314, the fourth filter interface 314 is connected in parallel with the second filter interface 312 and the third filter interface 313 at the filtered end 3102, and the fourth filter interface 314 is connected to the pressure regulating interface 61, and the pressure regulating outlet 62 is connected to the oil storage space 101.

[0145] Alternatively, see Figure 11 As shown, in some other embodiments, the pumping device 2 is further provided with a third pump interface 2023, which is connected in parallel with the first pump interface 2021 and the second pump interface 2022 to the second pumping end 202, and the third pump interface 2023 is connected to the pressure regulating interface 61, and the pressure regulating outlet 62 is connected to the oil storage space 101.

[0146] Or, see Figure 12 As shown, in some other embodiments, the oil pump 100 also includes a third connecting member 53, and the third connecting member 53 is provided with a ninth connecting interface 531, a tenth connecting interface 532 and an eleventh connecting interface 533 that are interconnected. The ninth connecting interface 531 is connected to the first pump interface 2021, the tenth connecting interface 532 is connected to the first filter interface 311, and the eleventh connecting interface 533 is connected to the pressure regulating interface 61.

[0147] Thus, when the oil pressure output by the pumping unit 2 is greater than the oil pressure required by the internal combustion engine, the pressure regulating port 61 and the pressure regulating outlet 62 are in a conducting state, allowing the fuel to flow back into the oil storage space 101 through the pressure regulating valve 6, thereby regulating the oil pressure. When the oil pressure output by the pumping unit 2 is less than or equal to the oil pressure required by the internal combustion engine, the pressure regulating port 61 and the pressure regulating outlet 62 are in a non-conducting state, thus ensuring that the oil pressure output by the pumping unit 2 reaches the oil pressure required by the internal combustion engine.

[0148] See Figure 13As shown, in some embodiments of the present application, the first filter 3 is provided with a first filter interface 311 and a second filter interface 312. The first filter interface 311 is connected to the filter end 3101, and the second filter interface 312 is connected to the filtered end 3102. The first filter interface 311 is connected to the first pump interface 2021. The oil pump 100 also includes a fourth connecting member 54, which includes a twelfth connecting interface, a thirteenth connecting interface, and a fourteenth connecting interface, which are interconnected. The twelfth connecting interface is connected to the second filter interface 312, the thirteenth connecting interface is used to connect to the fuel line 2200, and the fourteenth connecting interface is connected to the second pump interface 2022. The first valve body 41 is configured to control selective one-way communication between the first pump interface 2021 and the first filter interface 311, and the second valve body 42 is configured to control selective one-way communication between the fourteenth connecting interface and the second pump interface 2022.

[0149] For example, see Figure 13 As shown, in some embodiments of the present application, when the pumping device 2 is in the first startup mode, the first valve body 41 connects the first pump interface 2021 and the first filter interface 311, allowing fuel to flow from the first pump interface 2021 to the first filter interface 311. Thus, when the pumping device 2 is in the first startup mode, fuel is pumped out of the pumping device 2 through the first pump interface 2021 and then flows through the first filter interface 311 to the filtered end 3101. Furthermore, when the pumping device 2 is in the first startup mode, the second valve body 42 is closed, preventing fuel from flowing between the second pump interface 2022 and the fourteenth connecting interface. The filtered fuel then flows into the filtered end 3102, then through the second filter interface 312 to the fourth connecting member 54. The fuel then flows into the fourth connecting member 54 through the twelfth connecting interface, and finally through the thirteenth connecting interface to the fuel line 2200. This allows the fuel pump 100 to supply fuel to the internal combustion engine at a stable pressure.

[0150] See Figure 13 As shown, when the pumping device 2 is in standby mode or the second startup mode, the first valve body 41 is closed, preventing fuel from flowing between the first pump port 2021 and the first filter port 311. Simultaneously, the second valve body 42 connects the second pump port 2022 and the fourteenth communication port, allowing fuel to flow from the fourteenth communication port to the second pump port 2022. Thus, when the pumping device 2 is in standby mode or the second startup mode, the pressure within the first filter chamber 310 and the pressure within the fuel line 2200 are at a higher pressure relative to the pressure within the pumping channel 20. Due to this pressure differential, the fuel within the first filter 3 and the fuel line 2200 both flow back into the pumping device 2 through the fourth connecting member 54.

[0151] Thus, when a vehicle is equipped with the fuel pump 100 of the present application, since the first pump interface 2021 and the first filter interface 311 are selectively unidirectionally connected, and the filtered end 3102 and the second filter interface 312 are selectively unidirectionally connected, that is, the filtered end 3101 and the filtered end 3102 are connected in parallel to the pumping channel 20. When the pump 2 is in the first starting mode, the fuel is delivered to the first filter 3 and then supplied to the internal combustion engine. When the pump 2 is in the standby mode and the second starting mode, the fuel is returned. When the pump 2 is in the standby mode, the fuel line 2200 is in a low-pressure state or a normal pressure state to reduce the severity of secondary accidents. When the pump 2 is in the second starting mode, the fuel line 2200 is emptied to avoid secondary accidents.

[0152] See Figure 13 As shown, in some embodiments of the present application, the oil pump 100 may further include a pressure regulating valve 6 and a fifth connecting member 55. The pressure regulating valve 6 is provided with a pressure regulating interface 61 and a pressure regulating outlet 62, and the pressure regulating interface 61 and the pressure regulating outlet 62 are selectively unidirectional. The fifth connecting member 55 is provided with a fifteenth connecting interface 551, a sixteenth connecting interface 552, and a seventeenth connecting interface 553 that are interconnected. The fifteenth connecting interface 551 is connected to the first pump interface 2021, the sixteenth connecting interface 552 is connected to the first filter interface 311, and the seventeenth connecting interface 553 is connected to the pressure regulating interface 61. In this way, when the oil pressure output by the pumping device 2 is greater than the oil pressure required by the internal combustion engine, the pressure regulating interface 61 and the pressure regulating outlet 62 are in a conducting state, so that the fuel flows back to the oil storage space 101 through the pressure regulating valve 6, thereby achieving the effect of regulating the oil pressure. When the oil pressure output by the pump 2 is less than or equal to the oil pressure required by the internal combustion engine, the pressure regulating interface 61 and the pressure regulating outlet 62 are in a disconnected state, so that the oil pressure output by the pump 2 can reach the oil pressure required by the internal combustion engine.

[0153] See Figure 14 As shown, in some embodiments of the present application, the first filter 3 is provided with a first filter interface 311 and a second filter interface 312. The first filter interface 311 is connected to the filtered end 3101, and the second filter interface 312 is connected to the filtered end 3102. The first filter interface 311 is connected to the first pump interface 2021. The oil pump 100 also includes a sixth connecting member 56, which is provided with an eighteenth connecting interface 561, a nineteenth connecting interface 562, and a twentieth connecting interface 563 that are interconnected. The eighteenth connecting interface 561 is connected to the second filter interface 312, the nineteenth connecting interface 562 is used to connect to the fuel line 2200, and the twentieth connecting interface 563 is connected to the second pump interface 2022. The first valve body 41 is configured to control selective one-way communication between the first pump interface 2021 and the first pump interface 2021, and the second valve body 42 is configured to control selective one-way communication between the twentieth connecting interface 563 and the second pump interface 2022.

[0154] For example, see Figure 14 As shown, in some embodiments of the present application, when the pumping device 2 is in the first startup mode, the first valve body 41 connects the first pump interface 2021 and the first filter interface 311, allowing fuel to flow from the first pump interface 2021 to the first filter interface 311. Thus, when the pumping device 2 is in the first startup mode, fuel is pumped out of the pumping device 2 through the first pump interface 2021 and then flows through the first filter interface 311 to the filtered end 3101. Furthermore, when the pumping device 2 is in the first startup mode, the second valve body 42 is closed, preventing fuel from flowing between the second pump interface 2022 and the twentieth communication interface 563. The filtered fuel then flows into the filtered end 3102, then through the second filter interface 312 to the sixth connecting member 56. The fuel then flows into the sixth connecting member 56 through the eighteenth connecting interface 561, and finally through the nineteenth connecting interface 562 to the fuel line 2200. This allows the fuel pump 100 to supply fuel to the internal combustion engine at a stable pressure.

[0155] See Figure 14 As shown, when the pumping device 2 is in standby mode or the second startup mode, the first valve body 41 is closed, preventing fuel from flowing between the first pump port 2021 and the first filter port 311. Simultaneously, the second valve body 42 connects the second pump port 2022 and the twentieth communication port 563, allowing fuel to flow from the twentieth communication port 563 to the second pump port 2022. Thus, when the pumping device 2 is in standby mode or the second startup mode, the pressure within the first filter chamber 310 and the pressure within the fuel line 2200 are at a higher pressure relative to the pressure within the pumping channel 20. Due to this pressure differential, the fuel within the first filter 3 and the fuel line 2200 both flow back into the pumping device 2 through the sixth connecting member 56.

[0156] Thus, when a vehicle is equipped with the fuel pump 100 of the present application, since the first pump interface 2021 and the first filter interface 311 are selectively unidirectionally connected, and the filtered end 3102 and the second filter interface 312 are selectively unidirectionally connected, that is, the filtered end 3101 and the filtered end 3102 are connected in parallel to the pumping channel 20. When the pump 2 is in the first starting mode, the fuel is delivered to the first filter 3 and then supplied to the internal combustion engine. When the pump 2 is in the standby mode and the second starting mode, the fuel is returned. When the pump 2 is in the standby mode, the fuel line 2200 is in a low-pressure state or a normal pressure state to reduce the severity of secondary accidents. When the pump 2 is in the second starting mode, the fuel line 2200 is emptied to avoid secondary accidents.

[0157] See Figure 14As shown, in some embodiments of the present application, the oil pump 100 may further include a pressure regulating valve 6, which is provided with a pressure regulating port 61 and a pressure regulating outlet 62. The pressure regulating port 61 and the pressure regulating outlet 62 are selectively unidirectionally connected. The sixth connecting member 56 is further provided with a twenty-first connecting port 564, which is connected to the eighteenth connecting port 561, and the twenty-first connecting port 564 is connected to the pressure regulating port 61. The pressure regulating outlet 62 is connected to the oil storage space 101.

[0158] It should be understood that when the pumping device 2 is in the first startup mode and the oil pressure output by the pumping device 2 is greater than the oil pressure required by the internal combustion engine, the pressure regulating interface 61 and the pressure regulating outlet 62 are in a conducting state, allowing the fuel to flow back from the pressure regulating interface 61 to the oil storage space 101. Thus, when the oil pressure output by the pumping device 2 is greater than the oil pressure required by the internal combustion engine, the pressure regulating interface 61 and the pressure regulating outlet 62 are in a conducting state, allowing the fuel to flow back to the oil storage space 101 through the pressure regulating valve 6, thereby achieving the effect of regulating the oil pressure. When the oil pressure output by the pumping device 2 is less than or equal to the oil pressure required by the internal combustion engine, the pressure regulating interface 61 and the pressure regulating outlet 62 are in a non-conducting state, allowing the oil pressure output by the pumping device 2 to reach the oil pressure required by the internal combustion engine.

[0159] See Figures 1 to 4 As shown, in some embodiments of the present application, the first filter 3 is provided with a hollow assembly through hole 30, and the pumping device 2 is assembled in the assembly through hole 30. This makes the structure of the oil pump 100 more compact. Figures 1 to 4 As shown, the main structure of the first filter 3 is annular, so that a through assembly hole 30 is formed inside the first filter 3, and the pumping device 2 is suitable for being assembled in the assembly hole 30. In this way, the first filter 3 and the pumping device 2 are cylindrical in the assembled state. Figures 1 to 3 As shown, the oil storage space 101 has a cylindrical groove structure. In this way, when the first filter 3 and the pumping device 2 are both installed in the oil storage space 101, the space of the oil storage space 101 is fully utilized. It should be understood that when the oil pump 100 is used in the fuel system 2000, the oil storage barrel 1 is placed in the fuel tank 2100 of the fuel system 2000 so that the oil storage barrel 1 can be immersed in the fuel stored in the fuel tank 2100. Therefore, the demand for the amount of fuel that the oil storage space 101 can accommodate is not high. Therefore, according to the oil pump 100 of the present application, the first filter 3 is provided with a hollow assembly through-hole 30, and the pumping device 2 is assembled in the assembly through-hole 30. In this way, when the first filter 3 and the pumping device 2 are both installed in the oil storage space 101, the space of the oil storage space 101 is fully utilized.

[0160] See Figure 1 and Figure 2As shown, in some embodiments of the present application, the oil pump 100 further includes a mounting flange 7 and an oil delivery pipe 8. The mounting flange 7 is fixedly assembled with the oil storage barrel 1, and the mounting flange 7 can be used to assemble and cooperate with the oil storage tank 2100 of the fuel system 2000, thereby achieving the effect of fixing the oil pump 100 to the oil storage tank 2100 and allowing the oil storage barrel 1 to be located inside the oil storage tank 2100.

[0161] Mounting flange 7 is provided with an oil pump connecting pipe 71. One end of oil pump connecting pipe 71 is connected to filtered end 3102 via oil delivery pipe 8. This allows fuel pumped from filtered end 3102 to be delivered to oil pump connecting pipe 71 via oil delivery pipe 8. The other end of oil pump connecting pipe 71 is connected to fuel line 2200, allowing fuel to be delivered to fuel line 2200 via oil pump connecting pipe 71. Naturally, when fuel returns to pumper 2, it passes through oil pump connecting pipe 71 to fuel pump 100, and is then delivered to first filter 3 via oil delivery pipe 8. From there, fuel returns to pumper 2, and finally flows through oil storage barrel 1 to fuel tank 2100 of fuel system 2000. It should be understood that by providing the oil pump connecting pipe 71 on the mounting flange 7, when the oil pump 100 is assembled in the oil storage tank 2100 of the fuel system 2000, the interface of the oil pump connecting pipe 71 for connecting to the fuel pipeline 2200 in the fuel system 2000 is located outside the oil storage tank 2100, thereby facilitating connection between the oil pump 100 and the fuel pipeline 2200 in the fuel system 2000.

[0162] Combine Figure 3 , and combined Figures 7 to 14 As shown, in some embodiments of the present application, the oil pump 100 may further include a second filter 9, which is assembled in the oil storage space 101 and is configured to filter the fuel flowing into the pumping channel 20. In this way, when the fuel flows from the oil storage space 101 to the pumping channel 20, the second filter 9 first filters the fuel. Then, after the pump 2 sends the fuel pump 100 to the first filter 3, the first filter 3 filters the fuel that has been filtered once again, achieving the effect of secondary filtration of the fuel. This improves the quality of the fuel delivered by the oil pump 100 to the internal combustion engine, which is conducive to improving the working stability of the internal combustion engine.

[0163] See Figure 3 As shown, in some embodiments of the present application, the oil pump 100 may further include a check valve 10. The oil storage barrel 1 is provided with an overflow port 11 and an oil supply port 12, both of which are connected to the oil storage space 101. The check valve 10 is assembled at the oil supply port 12, so that the oil supply port 12 selectively and unidirectionally conducts communication between the oil storage space 101 and the oil storage tank 2100 of the fuel system 2000.

[0164] For example, combined Figures 1 to 3 As shown, a groove is provided within the oil storage barrel 1 to form an oil storage space 101. The exposed portion of the groove serves as an overflow port 11 of the oil storage barrel 1. A fuel supply port 12 is provided at the bottom of the oil storage barrel 1, communicating with the oil storage space 101. The fuel supply port 12 extends through the oil storage barrel 1, allowing the oil storage space 101 to communicate with the exterior of the oil storage barrel 1 through the fuel supply port 12. It should be understood that the oil storage barrel 1 is typically immersed within the fuel tank 2100 of the fuel system 2000. When the fuel level within the fuel tank 2100 is higher than the overflow port 11 of the oil storage barrel 1, the fuel in the fuel tank 2100 can flow into the oil storage space 101 through the overflow port 11 and the fuel supply port 12. When the fuel level within the fuel tank 2100 is lower than the overflow port 11 of the oil storage barrel 1, the fuel in the fuel tank 2100 can only flow into the oil storage space 101 through the fuel supply port 12.

[0165] By assembling the check valve 10 at the fuel supply port 12, the check valve 10 enables the fuel supply port 12 to selectively conduct one-way communication between the fuel storage space 101 and the fuel tank 2100 of the fuel system 2000. Thus, when the fuel in the fuel tank 2100 needs to flow into the fuel storage space 101 through the fuel supply port 12, the check valve 10 is opened, allowing the fuel in the fuel tank 2100 to flow into the fuel storage space 101 through the fuel supply port 12. At the same time, the check valve 10 can also prevent the fuel in the fuel storage space 101 from flowing back into the fuel tank 2100 through the fuel supply port 12, thereby ensuring that the fuel is stored in the fuel storage space 101.

[0166] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0167] The above-described embodiments merely represent several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present application, and these modifications and improvements fall within the scope of protection of the present application. Therefore, the scope of protection of the present patent application shall be determined by the appended claims.

Claims

1. An oil pump, characterized in that: include: An oil storage barrel, wherein the oil storage barrel is provided with an oil storage space; a pumper, the pumper being provided with a pumping channel, a first pumping end of the pumping channel being in communication with the oil storage space, the pumping channel being configured to drive the fuel to selectively flow; A first filter, wherein the first filter has a connected filtered end and a filtered end, the filtered end being used to communicate with a fuel pipeline of a fuel system, the filtered end and the filtered end being connected in parallel to a second pumping end of the pumping channel, and the second pumping end is selectively unidirectionally conductive to the filtered end and the filtered end.

2. The oil pump according to claim 1, characterized in that Also includes: a first valve body and a second valve body, wherein the first valve body is opened or closed to control the one-way connection or disconnection between the pumping channel and the end to be filtered, and the second valve body is opened or closed to control the one-way connection or disconnection between the filtered end and the pumping channel; The first valve body allows the fuel to flow from the pumping channel to the end to be filtered, and the second valve body allows the fuel to flow from the filtered end to the pumping channel.

3. The oil pump according to claim 2, characterized in that The first valve body is configured as a one-way valve. When the pressure of the pumping channel is greater than the pressure of the end to be filtered, the first valve body opens to conduct one-way communication between the pumping channel and the end to be filtered; and / or The second valve body is configured as a one-way valve. When the pressure at the filtered end is greater than the pressure at the pumping channel, the second valve body opens to conduct one-way communication between the filtered end and the pumping channel.

4. The oil pump according to claim 2, characterized in that Also includes: a first communication component, wherein the first communication component is provided with a first communication interface, a second communication interface, and a third communication interface that are interconnected; The first communication interface is connected to the second pumping end; The second communication interface is connected to the end to be filtered, and the first valve body is configured to control the second communication interface and the end to be filtered to selectively conduct one-way communication; The third communication interface is connected to the filtered end, and the second valve body is configured to control the third communication interface and the filtered end to selectively conduct in one direction.

5. The oil pump according to claim 4, characterized in that The first filter is provided with a first filter interface, a second filter interface and a third filter interface, wherein the first filter interface is connected to the end to be filtered, and the second filter interface and the third filter interface are connected in parallel to the filtered end; The first filter interface is connected to the second communication interface, the second filter interface is connected to the third communication interface, and the third filter interface is used to connect to the fuel pipeline; The first valve body is assembled on the first filter interface or the second communication interface, and the second valve body is assembled on the second filter interface or the third communication interface.

6. The oil pump according to claim 5, characterized in that A first assembly groove is provided in the first filter interface, the first valve body is assembled in the first assembly groove, and the second communication interface is sleeved on the outside of the first filter interface; A second assembly groove is provided in the second filter interface, the second valve body is assembled in the second assembly groove, the third communication interface is sleeved on the outside of the second filter interface, and part of the structure of the second valve body is clamped between the second filter interface and the third communication interface.

7. The oil pump according to claim 5, characterized in that Also includes: A pressure regulating valve is provided with a pressure regulating interface and a pressure regulating outlet, wherein the pressure regulating interface and the pressure regulating outlet are selectively unidirectionally connected; wherein, The first connecting member is further provided with a fourth connecting interface, the fourth connecting interface is connected to the first connecting interface, and the fourth connecting interface is also connected to the pressure regulating interface, and the pressure regulating outlet is connected to the oil storage space; or, The first filter is also provided with a fourth filter interface, which is connected in parallel with the second filter interface and the third filter interface at the filtered end, and the fourth filter interface is connected to the pressure regulating interface, and the pressure regulating outlet is connected to the oil storage space.

8. The oil pump according to claim 4, characterized in that Also includes: a second communication component, wherein the second communication component is provided with a fifth communication interface, a sixth communication interface and a seventh communication interface that are interconnected; The first filter is provided with a fifth filter interface and a sixth filter interface, the fifth filter interface is connected to the end to be filtered, and the fifth filter interface is connected to the second communication interface, and the first valve body is configured to control the second communication interface and the fifth filter interface to selectively conduct one-way communication; The sixth filter interface is connected to the filtered end, and the sixth filter interface is connected to the sixth communication interface; The seventh communication interface is used to connect to the fuel pipeline.

9. The oil pump according to claim 8, characterized in that Also includes: A pressure regulating valve, wherein the pressure regulating valve is provided with a pressure regulating interface and a pressure regulating outlet, wherein the pressure regulating interface and the pressure regulating outlet are selectively unidirectionally conductive; The second communication component is further provided with an eighth communication interface, the eighth communication interface is communicated with the fifth communication interface, and the eighth communication interface is connected to the pressure regulating interface, and the pressure regulating outlet is communicated with the oil storage space.

10. The oil pump according to claim 2, characterized in that The pumping device is provided with a first pump interface and a second pump interface, and the first pump interface and the second pump interface are connected in parallel to the second pumping end; The first pump interface is connected to the end to be filtered, and the first valve body is configured to control the first pump interface and the end to be filtered to selectively conduct one-way communication; The second pump interface is connected to the filtered end, and the second valve body is configured to control the filtered end and the second pump interface to selectively conduct in a one-way manner.

11. The oil pump according to claim 10, characterized in that The first filter is provided with a first filter interface, a second filter interface and a third filter interface, wherein the first filter interface is connected to the end to be filtered, and the second filter interface and the third filter interface are connected in parallel to the filtered end; The first filter interface is connected to the first pump interface, and the first valve body is configured to control the first filter interface and the first pump interface to selectively conduct one-way communication. The second filter interface is connected to the second pump interface, and the second valve body is configured to control the second filter interface and the second pump interface to selectively conduct one-way communication; The third filter interface is used to be connected to the fuel pipeline.

12. The oil pump according to claim 11, characterized in that Also includes: A pressure regulating valve is provided with a pressure regulating interface and a pressure regulating outlet, the pressure regulating interface and the pressure regulating outlet are selectively unidirectionally connected, and the pressure regulating outlet is connected to the oil storage space; wherein, The first filter is further provided with a fourth filter interface, the fourth filter interface is connected in parallel with the second filter interface and the third filter interface to the filtered end, and the fourth filter interface is connected to the pressure regulating interface; or, The pumping device is further provided with a third pump interface, the third pump interface is connected in parallel with the first pump interface and the second pump interface to the second pumping end, and the third pump interface is connected to the pressure regulating interface; or, It also includes: a third connecting piece, which is provided with a ninth connecting interface, a tenth connecting interface and an eleventh connecting interface that are interconnected, the ninth connecting interface is connected to the first pump interface, the tenth connecting interface is connected to the first filter interface, and the eleventh connecting interface is connected to the pressure regulating interface.

13. The oil pump according to claim 10, characterized in that The first filter is provided with a first filter interface and a second filter interface, the first filter interface is connected to the end to be filtered, the second filter interface is connected to the filtered end, and the first filter interface is connected to the first pump interface; The invention also includes: a fourth connecting member, the fourth connecting member including a twelfth connecting interface, a thirteenth connecting interface, and a fourteenth connecting interface that are interconnected, the twelfth connecting interface being connected to the second filter interface, the thirteenth connecting interface being used to be connected to the fuel pipeline, and the fourteenth connecting interface being connected to the second pump interface; The first valve body is configured to control the first pump interface and the first filter interface to selectively conduct one-way communication, and the second valve body is configured to control the fourteenth communication interface and the second pump interface to selectively conduct one-way communication.

14. The oil pump according to claim 13, characterized in that Also includes: A pressure regulating valve, wherein the pressure regulating valve is provided with a pressure regulating interface and a pressure regulating outlet, wherein the pressure regulating interface and the pressure regulating outlet are selectively unidirectionally conductive; It also includes: a fifth connecting piece, the fifth connecting piece is provided with a fifteenth connecting interface, a sixteenth connecting interface and a seventeenth connecting interface that are interconnected, the fifteenth connecting interface is connected to the first pump interface, the sixteenth connecting interface is connected to the first filter interface, and the seventeenth connecting interface is connected to the pressure regulating interface.

15. The oil pump according to claim 10, characterized in that The first filter is provided with a first filter interface and a second filter interface, the first filter interface is connected to the end to be filtered, the second filter interface is connected to the filtered end, and the first filter interface is connected to the first pump interface; The invention also includes: a sixth connecting member, the sixth connecting member being provided with an eighteenth connecting interface, a nineteenth connecting interface and a twenty-first connecting interface that are interconnected, the eighteenth connecting interface being connected to the second filter interface, the nineteenth connecting interface being used to be connected to the fuel pipeline, and the twenty-first connecting interface being connected to the second pump interface; The first valve body is configured to control the first pump interface to selectively conduct one-way communication with the first pump interface, and the second valve body is configured to control the twentieth communication interface to selectively conduct one-way communication with the second pump interface.

16. The oil pump according to claim 15, characterized in that Also includes: A pressure regulating valve, wherein the pressure regulating valve is provided with a pressure regulating interface and a pressure regulating outlet, wherein the pressure regulating interface and the pressure regulating outlet are selectively unidirectionally conductive; The sixth connecting member is further provided with a twenty-first connecting interface, the twenty-first connecting interface is connected to the eighteenth connecting interface, and the twenty-first connecting interface is connected to the pressure regulating interface, and the pressure regulating outlet is connected to the oil storage space.

17. The oil pump according to any one of claims 1 to 16, characterized in that The first filter is provided with a hollow assembly through hole, and the pump is assembled in the assembly through hole.

18. The oil pump according to any one of claims 1 to 16, characterized in that Also includes: A mounting flange and an oil pipeline, wherein the mounting flange is fixedly assembled with the oil storage barrel, and the mounting flange is used to assemble and cooperate with the oil storage tank of the fuel system; The mounting flange is provided with an oil pump connecting pipe, one end of the oil pump connecting pipe is connected to the filtered end through the oil delivery pipe, and the other end of the oil pump connecting pipe is used to be connected to the fuel pipeline.

19. The oil pump according to any one of claims 1 to 16, characterized in that Also includes: A second filter is installed in the oil storage space, and the second filter is configured to filter the fuel flowing into the pumping passage.

20. The oil pump according to any one of claims 1 to 16, characterized in that Also includes: Check valve; The oil storage barrel is provided with an overflow port and an oil supply port, both of which are connected to the oil storage space, and the check valve is assembled on the oil supply port so that the oil supply port selectively unidirectionally conducts the oil storage space and the oil storage tank of the fuel system.

21. A fuel system, characterized in that: include: An oil storage tank, wherein an oil storage cavity is provided in the oil storage tank; The oil pump according to any one of claims 1 to 20, wherein the oil pump is mounted on the oil storage tank; A fuel line is configured to connect the oil pump to an internal combustion engine.

22. A vehicle, characterized in that: include: body; The fuel system according to claim 21, wherein the fuel system is mounted on the vehicle body.

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