Oil pump system and vehicle

Abstract

The invention provides an oil pump system and a vehicle, and relates to the technical field of oil pump systems. An oil inlet of the pneumatic oil pump is communicated with the oil tank, an air outlet of the pneumatic oil pump is communicated with the oil tank, an air inlet of the pneumatic oil pump is communicated with an air source, and an air outlet of the pneumatic oil pump is communicated with the oil tank through a first degassing pipeline; an oil outlet of the pneumatic oil pump is communicated with the first oil conveying pipeline; part of the exhaust assemblies are provided with oil inlet channels, oil outlet channels and exhaust channels, the oil inlet channels communicate with the first oil conveying pipeline, and the exhaust channels communicate with the oil tank; the oil outlet channel is communicated with the second oil conveying pipeline, and the other part of the exhaust assembly is arranged on the second oil conveying pipeline; and an oil inlet of the high-pressure oil pump communicates with the second oil conveying pipeline, an oil outlet of the high-pressure oil pump is used for supplying oil to the high-pressure oil rail, and the problem that in the prior art, the mechanical energy loss of an oil supply system is large is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of oil pump systems, and more particularly, to an oil pump system and a vehicle. Background Art

[0002] In the field of automotive technology, especially in the commercial vehicle field, the efficiency and reliability of the fuel system are one of the key factors affecting vehicle performance. With the increasing demand for energy conservation, emission reduction, and improved fuel economy, optimizing the fuel supply system to reduce unnecessary energy losses and enhance engine performance has become an important research direction.

[0003] In existing fuel supply systems, diesel engines are usually equipped with integrated low-pressure oil pumps and high-pressure oil pumps. The function of the low-pressure oil pump is to extract fuel from the fuel tank and provide sufficient flow and pressure to the high-pressure oil pump. However, this design has inherent defects. First, the rotational speed of the low-pressure oil pump is proportional to the engine speed and cannot be autonomously adjusted according to the actual needs of the engine, resulting in its flow rate far exceeding the demand of the high-pressure oil rail. To meet instantaneous high demands, sufficient redundancy is often required in the design, which not only increases the power consumption and mechanical wear of the oil pump but also leads to unnecessary fuel reflux, thereby generating additional mechanical energy losses. Second, due to the large flow rate of the low-pressure oil pump, a relatively high negative pressure will be formed in the low-pressure oil circuit from the fuel tank to the oil pump, which will cause dissolved gas in the fuel to precipitate and form bubbles in porous media such as diesel filters, thereby affecting the stability of the rail pressure and having an adverse impact on the power output and fuel consumption performance of the engine.

[0004] Although some solutions attempt to solve the above problems by using electric oil pumps instead of low-pressure oil pumps, electric oil pumps face challenges such as limited pressure output and insufficient long-term operation reliability. Especially in extreme environmental conditions, how to ensure the stable operation of the oil pump and the smooth supply of fuel remains a technical difficulty to be solved urgently.

[0005] In summary, the existing fuel supply systems still need to be improved in terms of efficiency, reliability, and adaptability. Innovative technical solutions are needed to optimize the working mechanism of the low-pressure oil pump, reduce mechanical energy losses, improve the overall stability of the system and fuel quality, and at the same time reduce system maintenance costs to meet the strict requirements of modern automotive industry for high efficiency and low emissions. Summary of the Invention

[0006] The main object of the present invention is to provide an oil pump system and a vehicle to solve the problem of large mechanical energy losses in the existing fuel supply system.

[0007] To achieve the above object, according to one aspect of the present invention, an oil pump system is provided, including: a fuel tank; a pneumatic oil pump, the inlet of the pneumatic oil pump is communicated with the fuel tank, the outlet of the pneumatic oil pump is communicated with the fuel tank, the inlet of the pneumatic oil pump is communicated with a gas source, and the outlet of the pneumatic oil pump is communicated with the fuel tank through a first gas removal pipeline; a first oil pipeline, the outlet of the pneumatic oil pump is communicated with the first oil pipeline; an exhaust assembly, a part of the exhaust assembly has an oil inlet passage, an oil outlet passage and an exhaust passage, the oil inlet passage is communicated with the first oil pipeline, and the exhaust passage is communicated with the fuel tank; a second oil pipeline, the oil outlet passage is communicated with the second oil pipeline, and another part of the exhaust assembly is arranged on the second oil pipeline; a high-pressure oil pump, the inlet of the high-pressure oil pump is communicated with the second oil pipeline, and the outlet of the high-pressure oil pump is used for supplying oil to a high-pressure oil rail.

[0008] Further, the exhaust assembly includes: a first exhaust assembly, the first exhaust assembly has an oil inlet passage, an oil outlet passage and an exhaust passage, the oil inlet passage is communicated with the first oil pipeline, and the exhaust passage is communicated with the fuel tank through a first gas removal pipeline; a second exhaust assembly, the second exhaust assembly is arranged on the second oil pipeline, and the second exhaust assembly has an exhaust flow passage, and the exhaust flow passage is communicated with the fuel tank through a second gas removal pipeline.

[0009] Further, the first exhaust assembly includes: a housing, the housing has a receiving cavity, an oil inlet passage, an oil outlet passage and an exhaust passage, a filtering assembly is arranged in the receiving cavity, a dirty oil side is formed between the inner wall of the receiving cavity and the outer surface of the filtering assembly, and a clean side is formed on the inner surface of the filtering assembly, the oil inlet passage is communicated with the dirty oil side, the oil outlet passage is communicated with the clean side, a part of the oil outlet passage extends in the height direction of the housing into the clean side, the exhaust passage is communicated with the receiving cavity, and a first exhaust valve is arranged on the exhaust passage; a first measuring assembly, the first measuring assembly is arranged in the clean side, and the first measuring assembly is used for measuring the liquid level height of the oil body in the clean side, and the first measuring assembly is sequentially provided with a first working position and a second working position along the height direction of the housing; wherein, the oil body enters the clean side through the dirty oil side through the oil inlet passage, the oil body in the clean side flows out through the oil outlet passage, when the first measuring assembly is in the first working position, the first exhaust valve is opened, and the gas in the receiving cavity is discharged through the exhaust passage, and when the first measuring assembly is in the second working position, the first exhaust valve is closed.

[0010] Further, the first measurement assembly includes: a float disposed within the cleaning side and moving with the liquid level of the oil body within the cleaning side; a first measuring member connected to one of the inner surface of the filtering assembly and the oil outlet passage, the first measuring member being disposed on a side close to the bottom of the housing, the float having a first working position in contact with the first measuring member; a second measuring member connected to one of the inner surface of the filtering assembly and the oil outlet passage, the second measuring member being disposed on a side away from the bottom of the housing close to the housing, the float having a second working position in contact with the second measuring member; wherein when the float is in the first working position, the first exhaust valve is opened, and when the float is in the second working position, the first exhaust valve is closed.

[0011] Further, the float is disposed circumferentially along the oil outlet passage, the float is movably disposed relative to the oil outlet passage in the height direction of the housing, and / or the first measuring member is connected to the side wall of the oil outlet passage, the first measuring member is disposed on a side of the oil outlet passage close to the bottom of the housing, the second measuring member is connected to the side wall of the oil outlet passage, and the second measuring member is disposed on a side of the oil outlet passage away from the bottom of the housing.

[0012] Further, a part of the float is made of a magnetic material, the first measuring member is a magnetic flux sensor, and the second measuring member is a magnetic flux sensor.

[0013] Further, the second exhaust assembly includes: a tank disposed on the second oil pipeline, the tank having an oil inlet passage, an oil outlet passage, and an exhaust passage, the oil inlet passage communicating with the oil outlet passage through the second oil pipeline, the oil outlet passage communicating with the oil inlet of the high-pressure oil pump through the second oil pipeline, and a second exhaust valve disposed in the exhaust passage; a second measuring assembly disposed within the tank, the second measuring assembly for measuring the liquid level height of the oil body within the tank, the second measuring assembly having a third working position and a fourth working position; wherein the oil body enters the tank through the oil inlet passage, the oil body within the tank flows out through the oil inlet passage, when the second measuring assembly is in the third working position, the second exhaust valve is opened, and the gas within the tank is discharged through the exhaust passage, and when the second measuring assembly is in the fourth working position, the second exhaust valve is closed.

[0014] Further, the oil pump system includes: a fuel fine filter disposed on the second oil pipeline, the oil inlet of the fuel fine filter communicating with the oil outlet passage through the second oil pipeline, the oil outlet of the fuel fine filter communicating with the oil inlet passage through the second oil pipeline, and / or a check valve disposed on the second oil pipeline, the check valve being disposed between the tank and the high-pressure oil pump, and / or a return oil pipeline, one end of the return oil pipeline being used to communicate with the high-pressure oil rail, the other end of the return oil pipeline communicating with the oil inlet of the high-pressure oil pump, a one-way valve being disposed on the return oil pipeline, and / or a heat exchanger for performing heat exchange with the oil body, the heat exchanger being disposed on at least one of the fuel tank, the first oil pipeline, and the second oil pipeline.

[0015] Furthermore, the pneumatic oil pump has a pumping state and an exhaust state. When the pneumatic oil pump is in the pumping state, the intake port and the outlet port of the pneumatic oil pump are open, and the outlet port and the inlet port of the dynamic oil pump are closed. When the pneumatic oil pump is in the exhaust state, the outlet port and the inlet port of the dynamic oil pump are open, and the intake port and the outlet port of the pneumatic oil pump are closed.

[0016] According to another aspect of the present invention, a vehicle is further provided, including an oil pump system, and the oil pump system is the above-mentioned oil pump system.

[0017] By applying the technical solution of the present invention, through the collaborative work of the pneumatic oil pump and the exhaust assembly, the technical effects of efficient degassing and stable oil supply are achieved, and the purpose of improving the reliability of the fuel system and optimizing the engine performance is achieved. The pneumatic oil pump is driven by high-pressure gas, replacing the traditional low-pressure oil pump, reducing the mechanical energy loss; the exhaust assembly effectively removes the gas in the oil circuit, ensuring the positive pressure state of fuel transmission, avoiding the influence of bubbles on the rail pressure stability, and thus improving the operating efficiency and fuel economy of the engine, and solving the problem of large mechanical energy loss in the existing oil supply system. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings forming a part of this application are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation to the present invention. In the drawings:

[0019] Figure 1 shows a schematic structural diagram of an embodiment of an oil pump according to the present invention;

[0020] Figure 2 shows a schematic structural diagram of an embodiment of a first exhaust assembly according to the present invention;

[0021] Figure 3 shows a schematic structural diagram of an embodiment of a second exhaust assembly according to the present invention. Among them, the above-mentioned accompanying drawings include the following reference numerals:

[0022] 10, the first exhaust assembly;

[0023] 100, the housing;

[0024] 1, the accommodating cavity; 111, the dirty oil side; 112, the clean side; 12, the filtering assembly;

[0025] 121, the oil inlet channel;

[0026] 122, the oil outlet channel;

[0027] 123, the exhaust channel; 1231, the first exhaust valve;

[0028] 13, the first measurement assembly;

[0029] 131. Float;

[0030] 132. First measuring member;

[0031] 133. Second measuring member;

[0032] 20. Second exhaust assembly;

[0033] 200. Tank body;

[0034] 21. Inlet oil flow path;

[0035] 22. Outlet oil flow path;

[0036] 23. Exhaust flow path; 231. Second exhaust valve;

[0037] 24. Second measuring assembly;

[0038] 241. Magnetic float;

[0039] 242. Third measuring member;

[0040] 243. Fourth measuring member;

[0041] 30. Fuel tank;

[0042] 41. Pneumatic oil pump; 411. Air source;

[0043] 42. High-pressure oil pump;

[0044] 511. First degassing pipeline; 512. Second degassing pipeline;

[0045] 521. First oil transmission pipeline; 522. Second oil transmission pipeline;

[0046] 53. Oil return pipeline;

[0047] 60. Fine fuel filter;

[0048] 71. Check valve;

[0049] 72. One-way valve;

[0050] 80. High-pressure oil rail. Detailed implementation manner

[0051] It should be noted that, without conflict, the embodiments in this application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the drawings and in conjunction with the embodiments.

[0052] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they specify the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0053] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such terms can be interchanged under appropriate circumstances so that the embodiments of the present application described herein can be implemented in an order different from those illustrated or described herein. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or are inherent to these processes, methods, products, or devices.

[0054] Now, exemplary embodiments according to the present application will be described in more detail with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many different forms and should not be construed as being limited only to the embodiments set forth herein. It should be understood that these embodiments are provided so that the disclosure of the present application is thorough and complete, and the concept of these exemplary embodiments is fully conveyed to those of ordinary skill in the art. In the drawings, for clarity, the thickness of layers and regions may be exaggerated, and the same reference numerals are used to denote the same devices, and thus their description will be omitted.

[0055] Combined with Figures 1 to 3 , in a specific embodiment of the present invention, an oil pump system is provided.

[0056] Specifically, the oil pump system includes an oil tank 30, an air-driven oil pump 41, a first oil delivery pipeline 521, an exhaust assembly, a second oil delivery pipeline 522, and a high-pressure oil pump 42. The oil inlet of the air-driven oil pump 41 is connected to the oil tank 30, the air outlet of the air-driven oil pump 41 is connected to the oil tank 30, the air inlet of the air-driven oil pump 41 is connected to the air source 411, and the air outlet of the air-driven oil pump 41 is connected to the oil tank 30 through the first degassing pipeline 511; the oil outlet of the air-driven oil pump 41 is connected to the first oil delivery pipeline 521. Connected; part of the exhaust assembly has an oil inlet channel 121, an oil outlet channel 122 and an exhaust channel 123, the oil inlet channel 121 is connected to the first oil pipeline 521, and the exhaust channel 123 is connected to the fuel tank 30; the oil outlet channel 122 is connected to the second oil pipeline 522, and the other part of the exhaust assembly is arranged on the second oil pipeline 522; the oil inlet of the high-pressure oil pump 42 is connected to the second oil pipeline 522, and the oil outlet of the high-pressure oil pump 42 is used to supply oil to the high-pressure oil rail 80.

[0057] In this embodiment, the pneumatic oil pump 41 uses the gas pressure provided by the air source to pump fuel from the fuel tank and send it into the subsequent oil pipeline. The oil inlet of the pneumatic oil pump 41 is directly connected to the fuel tank 30, while the air outlet is connected to the fuel tank 30 through the first degassing pipeline 511 to exhaust the air or gas inside the pneumatic oil pump 41 and prevent the occurrence of air blockage. The oil outlet channel is connected to the second oil pipeline to continue to transport the fuel after the gas is removed. The air inlet of the pneumatic oil pump 41 is connected to the air source, which means that the driving energy of the oil pump comes from the vehicle's air pressure system, rather than traditional electrical or mechanical methods. This oil pump system abandons the use of traditional low-pressure oil pumps and instead adopts a pneumatic oil pump 41 combined with an exhaust component to achieve the fuel supply and purification process in a more efficient and reliable manner, avoiding the energy waste and gas precipitation problems caused by mechanical pumps in the existing technology, providing the engine with more stable and pure fuel, thereby hopefully improving engine performance and fuel economy. At the same time, through the rational arrangement of pipelines and components, the system layout is made more compact, which is convenient for installation and maintenance within the limited space of the vehicle.

[0058] Furthermore, the exhaust assembly includes a first exhaust assembly 10 and a second exhaust assembly 20. The first exhaust assembly 10 has an oil inlet channel 121, an oil outlet channel 122 and an exhaust channel 123. The oil inlet channel 121 is connected to the first oil pipeline 521, and the exhaust channel 123 is connected to the oil tank 30 through the first degassing pipeline 511; the second exhaust assembly 20 is arranged on the second oil pipeline 522, and the second exhaust assembly 20 has an exhaust flow channel 23, and the exhaust flow channel 23 is connected to the oil tank 30 through the second degassing pipeline 512.

[0059] Combine Figure 1As shown, in this embodiment, the dual-component setup ensures effective degassing of the system at different stages, improving the purity of fuel delivery and the overall efficiency of the system. With the provision of the fuel inlet passage 121, the fuel outlet passage 122, and the exhaust passage 123, the first exhaust assembly 10 can efficiently perform its core function. The fuel inlet passage 121 is directly connected to the first fuel pipeline 521, ensuring that the fuel discharged by the pneumatic oil pump 41 can smoothly flow into the exhaust assembly. Subsequently, when the fuel passes through the internal structure of the exhaust assembly, the gas is effectively separated and guided to the exhaust passage 123, and returns to the fuel tank 30 through the first gas removal pipeline 511, achieving gas recovery. This design avoids the accumulation of gas in the system, reduces the phenomenon of gas blockage, and improves the purity of the fuel. The fuel outlet passage 122 is responsible for sending the degassed fuel into the second fuel pipeline 522, preparing to enter the high-pressure oil pump 42. Through such a process, the system not only ensures the purification of the fuel before it is supplied to the high-pressure oil pump 42, but also realizes the on-demand supply of fuel through precise control, reducing unnecessary energy waste, and enhancing the operating efficiency and economy of the entire oil pump system. This exhaust assembly design based on the fuel inlet passage 121, the fuel outlet passage 122, and the exhaust passage 123 provides an efficient and environmentally friendly gas management solution for the oil pump system, not only optimizing the fuel delivery process, but also reducing emissions through gas recovery, reflecting the innovation and practicality of the design.

[0060] Furthermore, the first exhaust assembly 10 includes a housing 100 and a first measurement assembly 13. The housing 100 has a receiving cavity 11, a fuel inlet passage 121, a fuel outlet passage 122, and an exhaust passage 123. A filter assembly 12 is arranged in the receiving cavity 11. A dirty oil side 111 is formed between the inner wall of the receiving cavity 11 and the outer surface of the filter assembly 12, and a clean side 112 is formed on the inner surface of the filter assembly 12. The fuel inlet passage 121 communicates with the dirty oil side 111, the fuel outlet passage 122 communicates with the clean side 112, and a part of the fuel outlet passage 122 extends along the height direction of the housing 100 into the clean side 112. The exhaust passage 123 communicates with the receiving cavity 11, and the exhaust passage 123 is provided with a first exhaust valve 1231; the first measurement assembly 13 is arranged in the clean side 112, and the first measurement assembly 13 is used to measure the liquid level height of the oil body in the clean side 112. The first measurement assembly 13 is sequentially provided with a first working position and a second working position along the height direction of the housing 100; wherein, the oil body enters the clean side 112 through the dirty oil side 111 via the fuel inlet passage 121, and the oil body in the clean side 112 flows out through the fuel outlet passage 122. When the first measurement assembly 13 is in the first working position, the first exhaust valve 1231 opens, and the gas in the receiving cavity 11 is discharged through the exhaust passage 123. When the first measurement assembly 13 is in the second working position, the first exhaust valve 1231 closes.

[0061] In this embodiment, an accommodation chamber 11 is provided inside the housing 100. Through this chamber, preliminary filtration of fuel and separation of gas are achieved. A filtration assembly 12 is installed inside the accommodation chamber 11, and this assembly divides the accommodation chamber into two parts: a dirty oil side 111 and a clean side 112. Fuel enters the dirty oil side 111 from the pneumatic oil pump 41 through the oil inlet passage 121. Here, impurities in the fuel are intercepted by the filtration assembly 12, and the clean fuel then enters the clean side 112. The oil outlet passage 122 communicates with the clean side 112, and a part of the oil outlet passage 122 extends along the height direction of the housing 100 into the clean side, ensuring that the fuel can flow out smoothly and enter the subsequent second oil delivery pipeline 522. The exhaust passage 123 communicates with the accommodation chamber 11 for discharging the gas separated during the filtration process. A first exhaust valve 1231 is equipped on the exhaust passage 123, and it can be opened or closed at an appropriate time to control the gas discharge. When the first measurement assembly 13 detects that the liquid level height of the oil body in the clean side 112 reaches the set first working position, the first exhaust valve 1231 will automatically open, allowing the gas in the accommodation chamber 11 to be discharged through the exhaust passage 123 to avoid gas accumulation. When the liquid level rises to the second working position, the first exhaust valve 1231 closes to prevent accidental loss of fuel.

[0062] Through the above mechanism, the first exhaust assembly 10 can not only purify the fuel, but also monitor the liquid level height of the fuel in real time and adjust the opening and closing of the exhaust valve according to the actual situation, ensuring the efficient operation and safety of the system. The intelligent control of the first measurement assembly 13, combined with the fine filtration of the filtration assembly 12, enables the oil pump system to ensure the fuel quality while effectively managing and reducing gas emissions, providing a more stable and pure fuel supply for the entire oil pump system and the operation of the engine.

[0063] Furthermore, the first measurement assembly 13 includes a float 131, a first measuring member 132, and a second measuring member 133. The float 131 is arranged inside the clean side 112, and the float 131 moves along with the liquid level of the oil body in the clean side 112; the first measuring member 132 is connected to one of the inner surface of the filtration assembly 12 and the oil outlet passage 122, and the first measuring member 132 is arranged on one side close to the bottom of the housing 100, and the float 131 has a first working position in contact with the first measuring member 132; the second measuring member 133 is connected to one of the inner surface of the filtration assembly 12 and the oil outlet passage 122, and the second measuring member 133 is arranged on one side far from the bottom of the housing 100, and the float 131 has a second working position in contact with the second measuring member 133; wherein, when the float 131 is in the first working position, the first exhaust valve 1231 opens, and when the float 131 is in the second working position, the first exhaust valve 1231 closes.

[0064] In this embodiment, the first measuring member 132 is connected to either the inner surface of the filter assembly 12 or the oil outlet passage 122 and is located near the bottom of the housing 100. When the float 131 contacts the first measuring member 132 due to a drop in the oil level on the clean side 112, this indicates that the oil level has dropped to a point where gas release is necessary. At this point, the first vent valve 1231 automatically opens, allowing gas within the chamber 11 to escape through the vent passage 123. This process effectively prevents gas accumulation on the clean side, ensuring fuel purity and stable system operation. The second measuring member 133 is located further from the bottom of the housing 100 and is connected to either the inner surface of the filter assembly 12 or the oil outlet passage 122. When the oil level on the clean side 112 rises, the float 131 rises and contacts the second measuring member 133, indicating that the oil level has returned to a safe level. At this point, the first vent valve 1231 closes, preventing additional gas release and avoiding unnecessary fuel leakage. Through the cooperation of the float 131, the first measuring member 132 and the second measuring member 133, the first measuring component 13 can intelligently monitor the changes in the oil level in the clean side 112, and control the opening and closing of the first exhaust valve 1231 accordingly, thereby realizing automated gas emission management.

[0065] Furthermore, the float 131 is disposed along the circumference of the oil outlet channel 122 , and the float 131 is movably disposed relative to the oil outlet channel 122 along the height direction of the housing 100 .

[0066] Float 131 is positioned circumferentially along the oil outlet channel 122 to uniformly sense liquid level changes from all directions, preventing local level fluctuations from affecting overall detection results and enhancing the comprehensiveness and reliability of liquid level detection. Furthermore, float 131's mobility along the height of housing 100 allows it to quickly adjust its position based on actual oil level changes, ensuring accurate and timely contact with the measuring element.

[0067] Combine Figure 2 As shown, in one embodiment of the present application, the first measuring piece 132 is connected to the side wall of the oil outlet channel 122, and the first measuring piece 132 is arranged on the side of the oil outlet channel 122 close to the bottom of the shell 100, and the second measuring piece 133 is connected to the side wall of the oil outlet channel 122, and the second measuring piece 133 is arranged on the side of the oil outlet channel 122 away from the bottom of the shell 100.

[0068] In this embodiment, the first measuring member 132 is fixed to one side of the oil outlet passage 122 near the bottom of the housing 100. Such a layout makes it a key component for monitoring the lowest safe oil level in the system. When the oil level drops to the lowest point and is about to approach or reach the first working position, the float 131 will touch the first measuring member 132, triggering a corresponding signal to open the first exhaust valve 1231, ensuring that the gas accumulated in the cavity can be discharged in time, and avoiding pressure interference or air resistance caused by the gas. The second measuring member 133 is located on the side of the oil outlet passage 122 away from the bottom of the housing 100, that is, at a higher position, so as to monitor the upper limit of the oil level. When the oil level rises and reaches the second working position, the float 131 contacts it, thereby sending an instruction to close the first exhaust valve 1231, preventing unnecessary gas discharge when the oil is sufficient, and ensuring that the system will not cause fuel waste or environmental pollution due to misoperation.

[0069] Specifically, by arranging the first measuring member 132 and the second measuring member 133 at different heights of the oil outlet passage 122 respectively, the system can achieve two-way control of the oil level, not only ensuring that the oil pump system can effectively discharge the gas in the cavity when the oil is insufficient, but also timely closing the exhaust valve when the oil is sufficient to prevent unnecessary fuel leakage. This strategy not only strengthens the self-regulating ability of the oil pump system, reduces the dependence on manual intervention, but also improves the overall stability and economy of the system, which is an important manifestation of the intelligent upgrade of the oil pump system. By accurately positioning the measuring members, the oil pump system not only ensures the normal operation of the engine, but also realizes the effective utilization of resources and the goal of energy conservation and emission reduction.

[0070] Furthermore, part of the float 131 is made of magnetic material, the first measuring member 132 is a magnetic flux sensor, and the second measuring member 133 is a magnetic flux sensor.

[0071] Further, when the oil liquid level drops, the float 131 also drops and approaches the first magnetic flux sensor (the first measuring member 132) disposed on one side of the bottom of the oil outlet passage 122. Since the float 131 contains a magnetic material, it can affect the magnetic field of the first magnetic flux sensor without direct contact, and thus is sensed by the first magnetic flux sensor. Once the first magnetic flux sensor detects the approach of the float 131, it indicates that the oil liquid level has dropped to the critical point for gas discharge, and the system then starts the corresponding program to open the first exhaust valve 1231 to allow gas to be discharged until the oil liquid level rises. During the rise of the oil liquid level, the float 131 will rise and finally approach the second magnetic flux sensor (the second measuring member 133) disposed at a higher position of the oil outlet passage 122. When the float 131 reaches a certain distance from the second magnetic flux sensor, the second magnetic flux sensor can also sense the presence of the float 131, which means that the oil liquid level has reached the safe level and gas discharge is no longer required. Then the system will automatically close the first exhaust valve 1231, preventing unnecessary gas discharge and avoiding fuel waste.

[0072] Further, the second exhaust assembly 20 includes a tank body 200 and a second measuring assembly 24. The tank body 200 is disposed on the second oil pipeline 522. The tank body 200 has an oil inlet passage 21, an oil outlet passage 22 and an exhaust passage 23. The oil inlet passage 21 is communicated with the oil outlet passage 122 through the second oil pipeline 522. The oil outlet passage 22 is communicated with the oil inlet of the high-pressure oil pump 42 through the second oil pipeline 522. The exhaust passage 23 is provided with a second exhaust valve 231. The second measuring assembly 24 is disposed in the tank body 200. The second measuring assembly 24 is used for measuring the liquid level height of the oil in the tank body 200. The second measuring assembly 24 has a third working position and a fourth working position. Wherein, the oil enters the tank body 200 through the oil inlet passage 21, and the oil in the tank body 200 flows out through the oil inlet passage 21. When the second measuring assembly 24 is in the third working position, the second exhaust valve 231 is opened, and the gas in the tank body 200 is discharged through the exhaust passage 23. When the second measuring assembly 24 is in the fourth working position, the second exhaust valve 231 is closed.

[0073] In this embodiment, the tank body 200 is arranged on the second oil pipeline 522, becoming an intermediate link connecting the oil outlet channel 122 and the oil inlet of the high-pressure oil pump 42. The interior of the tank body is divided into three key areas: the oil inlet flow channel 21, the oil outlet flow channel 22, and the exhaust flow channel 23. The oil inlet flow channel 21 is closely connected to the oil outlet channel 122 through the second oil pipeline 522, ensuring that the oil body coming out of the pneumatic pump can smoothly flow into the tank body 200; the oil outlet flow channel 22 is also connected to the oil inlet of the high-pressure oil pump 42 through this pipeline, guaranteeing the continuous supply of the oil body after secondary purification; while the exhaust flow channel 23 is equipped with a second exhaust valve 231 for controlling the discharge of the gas inside the tank body 200. The second measurement component 24 is placed inside the tank body 200, undertaking the core task of monitoring the oil level height. This component has a distinction between the third working position and the fourth working position. By monitoring the actual oil level, it can intelligently judge when to open or close the second exhaust valve 231. Specifically, when the oil level drops to the third working position, the second exhaust valve 231 will be opened, and the excess gas inside the tank body 200 can be discharged through the exhaust flow channel 23, preventing the occurrence of air blockage, ensuring the continuous supply of the oil body and the stability of the oil pressure. On the contrary, when the oil level rises to the fourth working position, the second exhaust valve 231 automatically closes, stopping the gas discharge, avoiding unnecessary energy loss when the oil body is sufficient. At the same time, this also reduces the possibility of moisture and impurities in the outside air entering the oil circuit, improving the cleanliness and operating efficiency of the entire oil pump system.

[0074] Through such a design, the second exhaust component 20 not only solves the problem of gas discharge in the front-end pipeline of the high-pressure oil pump, but also realizes the dynamic monitoring and intelligent control of the oil level, ensuring that the pipeline system is in the optimal working state. This precise gas discharge management mechanism helps to eliminate the influence of air blockage on the engine performance, while reducing the waste of fuel during transmission, improving the overall performance and economy of the oil pump system, which is a great progress in the design of the oil circuit system.

[0075] Specifically, the second measurement component 24 includes a magnetic float 241, a third measurement piece 242, and a fourth measurement piece 243. The magnetic float 241 is disposed within the cleaning side 112 and moves along with the liquid level of the oil in the cleaning side 112. The third measurement piece 242 is connected to the side wall of the oil outlet passage 122 and is disposed on the side close to the bottom of the tank body 200. The magnetic float 241 has a third working position in contact with the third measurement piece 242. The fourth measurement piece 243 is connected to the side wall of the oil outlet passage 122 and is disposed on the side far from the bottom of the tank body 200. The magnetic float 241 has a fourth working position in contact with the fourth measurement piece 243. When the magnetic float 241 is in the third working position, the second exhaust valve 231 is opened. When the magnetic float 241 is in the fourth working position, the second exhaust valve 231 is closed.

[0076] Combined Figure 3 As shown, in this embodiment, the magnetic float 241 is designed to be placed within the cleaning side 112 of the tank body 200 and moves with the rise and fall of the oil liquid level. Its movement trajectory is closely related to the change of the oil liquid level. The magnetic property of the magnetic float 241 allows it to trigger corresponding liquid level sensing signals through magnetic field changes without directly contacting the third measurement piece 242 and the fourth measurement piece 243, producing a non-contact liquid level detection effect, which significantly improves the sensitivity and reliability of the detection. The third measurement piece 242 is fixed to the side wall of the oil outlet passage 122 and is located on the side close to the bottom of the tank body 200. When the oil liquid level drops and the magnetic float 241 moves to the third working position corresponding to the third measurement piece 242, the third measurement piece 242 can sense the presence of the magnetic float 241, and then send a signal to control the opening of the second exhaust valve 231, allowing the excess gas in the tank to be discharged through the exhaust flow passage 23. This process helps to prevent air blockage, ensure the smooth transportation of the oil in the oil pump system, and the stability of the oil pressure. On the contrary, when the oil liquid level rises, the magnetic float 241 will move to the fourth working position far from the bottom of the tank body and correspond to the fourth measurement piece 243. When the magnetic float 241 contacts the fourth measurement piece 243, the system will receive an instruction to close the second exhaust valve 231 to prevent gas emission, so as to prevent energy loss or introduction of external impurities due to gas emission when the oil in the tank is sufficient. This design mechanism ensures the efficient operation of the oil pump system under different liquid level conditions, reduces unnecessary energy consumption, and improves the overall performance and economy of the system.

[0077] Specifically, through the interaction between the magnetic float 241 in the second measuring component 24 and the third measuring piece 242 and the fourth measuring piece 243, the system realizes an instant response to the change in the oil level and precise control of gas emissions. This not only improves the flexibility and accuracy of the oil pump system in liquid level management and gas emissions, but also reduces the complexity of system maintenance and the failure rate, which is of great significance for enhancing the long-term stability and operating efficiency of the oil pump system.

[0078] Furthermore, the oil pump system includes a fuel fine filter 60. The fuel fine filter 60 is arranged on the second oil delivery pipeline 522. The inlet of the fuel fine filter 60 is communicated with the oil outlet passage 122 through the second oil delivery pipeline 522, and the outlet of the fuel fine filter 60 is communicated with the oil inlet flow channel 21 through the second oil delivery pipeline 522.

[0079] The fuel fine filter 60 not only receives the output of the pneumatic pump, but also lays a foundation for the efficient operation of the high-pressure oil pump. During the process of the oil body being transmitted from the oil outlet passage 122 to the tank body 200, the fuel fine filter 60 can effectively intercept tiny impurities and particles in the oil body, such as dust, iron filings, moisture, etc., preventing them from entering the high-pressure oil pump, avoiding the wear and failure of the precision parts inside the oil pump, effectively extending the service life of the high-pressure oil pump, and at the same time ensuring the stable operation and performance of the engine. In addition, the integration of the fuel fine filter 60 also reflects the emphasis on environmental protection and energy conservation and emission reduction in the design of the oil pump system. By improving the cleanliness of the oil body, harmful emissions during the engine combustion process are reduced.

[0080] Furthermore, the oil pump system includes a check valve 71. The check valve 71 is arranged on the second oil delivery pipeline 522, and the check valve 71 is arranged between the tank body 200 and the high-pressure oil pump 42.

[0081] The check valve 71 can automatically open or close according to the oil flow direction through its internal special structure (such as a spring-driven spherical valve or a flake valve), without an external power supply or control signal. When the oil body flows through the check valve 71 in the forward direction, the valve flap of the check valve 71 is pushed open by the oil pressure, and the oil body can pass through; while when the oil body tries to flow backward, the valve flap closes tightly under the action of the internal spring force or its own gravity, preventing the oil body from flowing backward, and realizing the directional transmission of the oil body in the oil pump system. By arranging the check valve 71 between the tank body 200 and the high-pressure oil pump 42, the oil pump system not only enhances the safety and reliability of the oil body transportation, but also improves the overall efficiency and economy of the system.

[0082] Furthermore, the oil pump system includes a return oil pipeline 53. One end of the return oil pipeline 53 is used to communicate with the high-pressure oil rail 80, the other end of the return oil pipeline 53 is communicated with the inlet of the high-pressure oil pump 42, and a one-way valve 72 is arranged on the return oil pipeline 53.

[0083] In this embodiment, after the fuel output from the high-pressure oil pump undergoes the engine fuel injection process, the remaining unburned fuel can return to the inlet end of the high-pressure oil pump 42 through the high-pressure oil rail 80, participating in the establishment of oil pressure and the circulation of the oil body again, ensuring the smooth flow of the oil circuit and the stability of the oil pressure. On the oil return pipeline 53, a check valve 72 is installed. The presence of the check valve 72 ensures that the oil body can only flow in one direction, that is, from the high-pressure oil rail 80 back to the high-pressure oil pump 42, while preventing the reverse flow of the oil body, effectively avoiding the system instability problems caused by oil pressure fluctuations or backflows. The opening and closing of the check valve 72 are naturally regulated by the internal oil pressure of the system. When the pressure in the high-pressure oil rail 80 exceeds the pressure in the oil return pipeline, the check valve automatically opens to allow oil return; conversely, when the internal oil pressure of the oil return pipeline is higher than that of the high-pressure oil rail 80, the check valve automatically closes to prevent backflow.

[0084] Further, the pneumatic oil pump 41 has a pumping state and an exhaust state. When the pneumatic oil pump 41 is in the pumping state, the inlet and outlet of the pneumatic oil pump 41 are open, and the outlet and inlet of the pneumatic oil pump 41 are closed. When the pneumatic oil pump 41 is in the exhaust state, the outlet and inlet of the pneumatic oil pump 41 are open, and the inlet and outlet of the pneumatic oil pump 41 are closed.

[0085] Specifically, when the pneumatic oil pump 41 needs to supply oil to the system, it enters the pumping state. At this time, the inlet and outlet of the pneumatic oil pump 41 are opened, while the outlet and inlet are kept closed. This operation enables high-pressure gas to smoothly enter the oil pump, driving the piston to move downward, thereby sucking the oil body in the fuel tank through the inlet and pushing it through the outlet to the next step of the system, such as the tank 200 or the fuel fine filter 60. The pneumatic oil pump 41 in the pumping state realizes the positive-pressure output of the oil body through efficient gas conversion, ensuring the stable delivery of the oil body and avoiding problems such as air blockage or insufficient oil supply that may occur during the pumping process. When the internal gas pressure of the system is too high or maintenance operations are required, the pneumatic oil pump 41 switches to the exhaust state. In this state, the outlet and inlet of the pneumatic oil pump 41 are opened, while the inlet and outlet are closed. In this way, the gas in the oil pump can be directly discharged into the atmosphere through the outlet, reducing the pressure inside the oil pump and ensuring that the oil body does not flow back. This mechanism is crucial for the regulation of system pressure and the self-protection of the oil pump. Especially at the initial stage of the oil pump startup or when there is excessive gas accumulation in the oil circuit system, the exhaust state can quickly remove the excess gas in the system, restore the normal working state of the oil pump, prevent the occurrence of air blockage, and ensure the stable operation of the engine.

[0086] In summary, the design of the pumping state and exhaust state of the pneumatic oil pump 41 not only solves the common problems of unstable oil supply and air blockage in traditional oil pump systems, but also improves the overall performance and reliability of the system through an intelligent control strategy, reduces the number of maintenance times, extends the service life of the oil pump, and is a major highlight in the design of modern oil pump systems. Through precise gas management, the pneumatic oil pump 41 can automatically adjust its functions under different working conditions, ensuring the stable supply of the oil body and the long-term stable operation of the oil pump system.

[0087] Furthermore, the oil pump system includes a heat exchange component, which is used for heat exchange with the oil body and is arranged on at least one of the fuel tank 30, the first oil delivery pipeline 521, and the second oil delivery pipeline 522.

[0088] In an embodiment of the present application, when the ambient temperature is extremely low, the fuel inside the fuel tank 30 may solidify or its fluidity may significantly decrease. At this time, the heat exchange component arranged inside the fuel tank 30 will come into play. By exchanging heat with the oil body, the temperature of the oil body is increased, thereby restoring the fluidity of the fuel. Such a heat exchange component usually adopts an electric heating method or can be designed in a form of heat exchange with the engine coolant, using the heat generated during engine operation to heat the fuel, which is both energy-saving and efficient.

[0089] In an embodiment of the present application, a heat exchange component is arranged on the first oil delivery pipeline 521 between the pneumatic pump and the tank body 200, which can heat the fuel transported from the pneumatic pump to the front section of the tank body, ensuring that the fuel maintains good fluidity before reaching the tank body 200. This measure plays an important role in preventing the fuel from freezing and blocking in the pipeline. Especially during the low-temperature start-up stage, it can significantly shorten the engine preheating time and improve the starting performance of the vehicle.

[0090] In an embodiment of the present application, considering the quality of the oil body transportation between the tank body 200 and the high-pressure oil pump 42, the heat exchange component on the second oil delivery pipeline 522 can perform final temperature adjustment on the fuel about to enter the high-pressure oil pump, so as to ensure that the fuel is received by the high-pressure oil pump at the optimal temperature, thereby improving the fuel atomization effect, optimizing the combustion performance, and reducing fuel consumption.

[0091] In summary, the presence of the heat exchange component improves the adaptability and working efficiency of the oil pump system in extreme environments. By exchanging heat with the oil body, it effectively solves the problem of fuel fluidity in low-temperature environments and avoids the impact of fuel solidification or slow flow on engine performance and the operation of the oil pump system. Whether using electric heating or heat exchange with the engine coolant, the reasonable arrangement and use of the heat exchange component can greatly optimize the performance of the fuel system and provide a strong guarantee for the stable operation of the vehicle under various environmental conditions.

[0092] In another embodiment of the present invention, a vehicle is provided. The vehicle includes the oil pump system according to the above embodiment.

[0093] Specifically, the oil pump system includes an oil tank 30, an air-driven oil pump 41, a first oil delivery pipeline 521, an exhaust assembly, a second oil delivery pipeline 522, and a high-pressure oil pump 42. The oil inlet of the air-driven oil pump 41 is connected to the oil tank 30, the air outlet of the air-driven oil pump 41 is connected to the oil tank 30, the air inlet of the air-driven oil pump 41 is connected to the air source 411, and the air outlet of the air-driven oil pump 41 is connected to the oil tank 30 through the first degassing pipeline 511; the oil outlet of the air-driven oil pump 41 is connected to the first oil delivery pipeline 521. Connected; part of the exhaust assembly has an oil inlet channel 121, an oil outlet channel 122 and an exhaust channel 123, the oil inlet channel 121 is connected to the first oil pipeline 521, and the exhaust channel 123 is connected to the fuel tank 30; the oil outlet channel 122 is connected to the second oil pipeline 522, and the other part of the exhaust assembly is arranged on the second oil pipeline 522; the oil inlet of the high-pressure oil pump 42 is connected to the second oil pipeline 522, and the oil outlet of the high-pressure oil pump 42 is used to supply oil to the high-pressure oil rail 80.

[0094] In this embodiment, the pneumatic oil pump 41 uses the gas pressure provided by the air source to pump fuel from the fuel tank and send it into the subsequent oil pipeline. The oil inlet of the pneumatic oil pump 41 is directly connected to the fuel tank 30, while the air outlet is connected to the fuel tank 30 through the first degassing pipeline 511 to exhaust the air or gas inside the pneumatic oil pump 41 and prevent the occurrence of air blockage. The oil outlet channel is connected to the second oil pipeline to continue to transport the fuel after the gas is removed. The air inlet of the pneumatic oil pump 41 is connected to the air source, which means that the driving energy of the oil pump comes from the vehicle's air pressure system, rather than traditional electrical or mechanical methods. This oil pump system abandons the use of traditional low-pressure oil pumps and instead adopts a pneumatic oil pump 41 combined with an exhaust component to achieve the fuel supply and purification process in a more efficient and reliable manner, avoiding the energy waste and gas precipitation problems caused by mechanical pumps in the existing technology, providing the engine with more stable and pure fuel, thereby hopefully improving engine performance and fuel economy. At the same time, through the rational arrangement of pipelines and components, the system layout is made more compact, which is convenient for installation and maintenance within the limited space of the vehicle.

[0095] In another embodiment of the present invention, a vehicle is provided, comprising the oil pump system according to the above embodiment.

[0096] Specifically, the oil pump system includes an oil tank 30, an air-driven oil pump 41, a first oil delivery pipeline 521, an exhaust assembly, a second oil delivery pipeline 522, and a high-pressure oil pump 42. The oil inlet of the air-driven oil pump 41 is connected to the oil tank 30, the air outlet of the air-driven oil pump 41 is connected to the oil tank 30, the air inlet of the air-driven oil pump 41 is connected to the air source 411, and the air outlet of the air-driven oil pump 41 is connected to the oil tank 30 through the first degassing pipeline 511; the oil outlet of the air-driven oil pump 41 is connected to the first oil delivery pipeline 521. Connected; part of the exhaust assembly has an oil inlet channel 121, an oil outlet channel 122 and an exhaust channel 123, the oil inlet channel 121 is connected to the first oil pipeline 521, and the exhaust channel 123 is connected to the fuel tank 30; the oil outlet channel 122 is connected to the second oil pipeline 522, and the other part of the exhaust assembly is arranged on the second oil pipeline 522; the oil inlet of the high-pressure oil pump 42 is connected to the second oil pipeline 522, and the oil outlet of the high-pressure oil pump 42 is used to supply oil to the high-pressure oil rail 80.

[0097] In this embodiment, the pneumatic oil pump 41 uses the gas pressure provided by the air source to pump fuel from the fuel tank and send it into the subsequent oil pipeline. The oil inlet of the pneumatic oil pump 41 is directly connected to the fuel tank 30, while the air outlet is connected to the fuel tank 30 through the first degassing pipeline 511 to exhaust the air or gas inside the pneumatic oil pump 41 and prevent the occurrence of air blockage. The oil outlet channel is connected to the second oil pipeline to continue to transport the fuel after the gas is removed. The air inlet of the pneumatic oil pump 41 is connected to the air source, which means that the driving energy of the oil pump comes from the vehicle's air pressure system, rather than traditional electrical or mechanical methods. This oil pump system abandons the use of traditional low-pressure oil pumps and instead adopts a pneumatic oil pump 41 combined with an exhaust component to achieve the fuel supply and purification process in a more efficient and reliable manner, avoiding the energy waste and gas precipitation problems caused by mechanical pumps in the existing technology, providing the engine with more stable and pure fuel, thereby hopefully improving engine performance and fuel economy. At the same time, through the rational arrangement of pipelines and components, the system layout is made more compact, which is convenient for installation and maintenance within the limited space of the vehicle.

[0098] From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects:

[0099] 1) Significantly Improved Fuel System Efficiency and Reliability: By replacing the traditional mechanical low-pressure fuel pump with a pneumatic pumping system, this invention eliminates mechanical energy loss during the active fuel circulation process and improves fuel transfer efficiency. The pneumatic pumping system utilizes high-pressure gas from the vehicle's air reservoir as its power source, reducing the number of system components and avoiding energy waste during the fuel circulation process, thereby enhancing the reliability of the entire fuel system.

[0100] 2) Optimize fuel quality and improve engine performance: By adding a positive-pressure diesel filter and a positive-pressure degassing tank to the system, the present invention effectively removes the gas and tiny impurities in the fuel, significantly improving the fuel cleanliness. This improvement not only avoids the adverse effects of gas precipitation on the rail pressure but also reduces the wear of internal engine components, ensuring stable output and fuel consumption performance of the engine under various working conditions and enhancing the overall performance.

[0101] 3) Enhance the adaptability to extreme environments and ensure smooth cold start: In cold environments, the fuel may have reduced fluidity due to wax formation, affecting the cold start performance of the engine. The present invention integrates electric heating and water heating functions in the fuel pump system, which can quickly thaw the fuel under low-temperature conditions, providing sufficient and flowable fuel for the engine and ensuring smooth cold start and preheating efficiency.

[0102] The introduction of this heating mechanism not only solves the problem of low-temperature start but also reduces the overall power consumption of the system, demonstrating the emphasis on environmental protection and energy efficiency. For the sake of description, relative space terms such as "above...", "over...", "on the upper surface of...", "upper" etc. can be used here to describe the spatial position relationship between a device or feature shown in the figure and other devices or features. It should be understood that relative space terms are intended to cover different orientations in use or operation in addition to the orientation described in the figure for the device. For example, if the device in the drawing is inverted, the device described as "above other devices or structures" or "over other devices or structures" will then be positioned "below other devices or structures" or "under other devices or structures". Thus, the exemplary term "above..." can include both the orientation of "above..." and "below...". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the corresponding explanations for the relative space descriptions used here will be made.

[0103] In addition to the above, it should also be noted that when referring to "one embodiment", "another embodiment", "embodiment" etc. in this specification, it means that the specific features, structures or characteristics described in connection with the embodiment are included in at least one embodiment generally described in the present application. The same expression appearing in multiple places in the specification does not necessarily refer to the same embodiment. Further, when describing a specific feature, structure or characteristic in connection with any one embodiment, it is intended that the implementation of such feature, structure or characteristic in combination with other embodiments also falls within the scope of the present invention.

[0104] In the above embodiments, the descriptions of each embodiment have their own focuses. For the parts not detailed in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0105] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An oil pump system, characterized in that, Comprising: Fuel tank (30); Pneumatic oil pump (41), the inlet of the pneumatic oil pump (41) is communicated with the fuel tank (30), the outlet of the pneumatic oil pump (41) is communicated with the fuel tank (30), the inlet of the pneumatic oil pump (41) is communicated with the gas source (411), and the outlet of the pneumatic oil pump (41) is communicated with the fuel tank (30) through the first gas removal pipeline (511); First oil pipeline (521), the outlet of the pneumatic oil pump (41) is communicated with the first oil pipeline (521); Exhaust assembly, part of the exhaust assembly has an oil inlet channel (121), an oil outlet channel (122) and an exhaust channel (123), the oil inlet channel (121) is communicated with the first oil pipeline (521), and the exhaust channel (123) is communicated with the fuel tank (30); Second oil pipeline (522), the oil outlet channel (122) is communicated with the second oil pipeline (522), and another part of the exhaust assembly is arranged on the second oil pipeline (522); High-pressure oil pump (42), the inlet of the high-pressure oil pump (42) is communicated with the second oil pipeline (522), and the outlet of the high-pressure oil pump (42) is used to supply oil to the high-pressure oil rail (80).

2. The oil pump system according to claim 1, characterized in that, The exhaust assembly includes: First exhaust assembly (10), the first exhaust assembly (10) has the oil inlet channel (121), the oil outlet channel (122) and the exhaust channel (123), the oil inlet channel (121) is communicated with the first oil pipeline (521), and the exhaust channel (123) is communicated with the fuel tank (30) through the first gas removal pipeline (512); Second exhaust assembly (20), the second exhaust assembly (20) is arranged on the second oil pipeline (522), the second exhaust assembly (20) has an exhaust flow channel (23), and the exhaust flow channel (23) is communicated with the fuel tank (30) through the second gas removal pipeline (512).

3. The oil pump system according to claim 2, characterized in that, The first exhaust assembly (10) includes: Housing (100), the housing (100) has a receiving cavity (11), the oil inlet channel (121), the oil outlet channel (122) and the exhaust channel (123), a filtering component (12) is arranged in the receiving cavity (11), a dirty oil side (111) is formed between the inner wall of the receiving cavity (11) and the outer surface of the filtering component (12), a clean side (112) is formed on the inner surface of the filtering component (12), the oil inlet channel (121) is communicated with the dirty oil side (111), the oil outlet channel (122) is communicated with the clean side (112), and part of the oil outlet channel (122) extends along the height direction of the housing (100) into the clean side (112), the exhaust channel (123) is communicated with the receiving cavity (11), and a first exhaust valve (1231) is arranged on the exhaust channel (123); The first measurement component (13) is arranged inside the cleaning side (112). The first measurement component (13) is used to measure the liquid level height of the oil in the cleaning side (112). The first measurement component (13) is sequentially provided with a first working position and a second working position along the height direction of the housing (100). Wherein, the oil enters the cleaning side (112) through the dirty oil side (111) via the oil inlet channel (121), and the oil in the cleaning side (112) flows out through the oil outlet channel (122). When the first measurement component (13) is in the first working position, the first exhaust valve (1231) is opened, and the gas in the accommodation cavity (11) is discharged through the exhaust channel (123). When the first measurement component (13) is in the second working position, the first exhaust valve (1231) is closed.

4. The oil pump system according to claim 3, characterized in that, The first measurement component (13) includes: A float (131) is arranged inside the cleaning side (112), and the float (131) moves along with the liquid level of the oil in the cleaning side (112). A first measuring member (132) is connected to one of the inner surface of the filtering component (12) and the oil outlet channel (122). The first measuring member (132) is arranged on one side close to the bottom of the housing (100). The float (131) has the first working position in contact with the first measuring member (132). A second measuring member (133) is connected to one of the inner surface of the filtering component (12) and the oil outlet channel (122). The second measuring member (133) is arranged on one side far from the bottom of the housing (100). The float (131) has the second working position in contact with the second measuring member (133). Wherein, when the float (131) is in the first working position, the first exhaust valve (1231) is opened, and when the float (131) is in the second working position, the first exhaust valve (1231) is closed.

5. The oil pump system according to claim 4, wherein The float (131) is arranged along the circumferential direction of the oil outlet channel (122), and the float (131) is arranged movably relative to the oil outlet channel (122) along the height direction of the housing (100), and / or The first measuring member (132) is connected to the side wall of the oil outlet channel (122). The first measuring member (132) is arranged on one side of the oil outlet channel (122) close to the bottom of the housing (100). The second measuring member (133) is connected to the side wall of the oil outlet channel (122). The second measuring member (133) is arranged on one side of the oil outlet channel (122) far from the bottom of the housing (100).

6. The oil pump system according to claim 4, wherein A part of the float (131) is made of a magnetic material. The first measuring member (132) is a magnetic flux sensor, and the second measuring member (133) is a magnetic flux sensor.

7. The oil pump system according to any one of claims 2 to 6, characterized in that, The second exhaust assembly (20) includes: A tank body (200). The tank body (200) is arranged on the second oil pipeline (522). The tank body (200) has an oil inlet flow channel (21), an oil outlet flow channel (22) and the exhaust flow channel (23). The oil inlet flow channel (21) is communicated with the oil outlet channel (122) through the second oil pipeline (522). The oil outlet flow channel (22) is communicated with the oil inlet of the high-pressure oil pump (42) through the second oil pipeline (522). A second exhaust valve (231) is arranged on the exhaust flow channel (23); A second measuring assembly (24). The second measuring assembly (24) is arranged inside the tank body (200). The second measuring assembly (24) is used to measure the liquid level height of the oil in the tank body (200). The second measuring assembly (24) has a third working position and a fourth working position; Wherein, the oil enters the tank body (200) through the oil inlet flow channel (21), and the oil in the tank body (200) flows out through the oil inlet flow channel (21). When the second measuring assembly (24) is in the third working position, the second exhaust valve (231) is opened, and the gas in the tank body (200) is discharged through the exhaust flow channel (23). When the second measuring assembly (24) is in the fourth working position, the second exhaust valve (231) is closed.

8. The oil pump system according to claim 7, wherein, The oil pump system includes: A fuel fine filter (60). The fuel fine filter (60) is arranged on the second oil pipeline (522). The oil inlet of the fuel fine filter (60) is communicated with the oil outlet channel (122) through the second oil pipeline (522). The oil outlet of the fuel fine filter (60) is communicated with the oil inlet flow channel (21) through the second oil pipeline (522), and / or, A check valve (71). The check valve (71) is arranged on the second oil pipeline (522). The check valve (71) is arranged between the tank body (200) and the high-pressure oil pump (42), and / or, [[ID=⑧]]A return oil pipeline (53). One end of the return oil pipeline (53) is used to be communicated with the high-pressure oil rail (80), and the other end of the return oil pipeline (53) is communicated with the oil inlet of the high-pressure oil pump (42). A one-way valve (72) is arranged on the return oil pipeline (53), and / or, A heat exchange member. The heat exchange member is used to perform heat exchange with the oil. The heat exchange member is arranged on at least one of the fuel tank (30), the first oil pipeline (521) and the second oil pipeline (522).

9. The oil pump system according to claim 1, wherein The pneumatic oil pump (41) has a state of pumping oil and a state of exhausting air. When the pneumatic oil pump (41) is in the state of pumping oil, the air inlet and the oil outlet of the pneumatic oil pump (41) are opened, and the air outlet and the oil inlet of the pneumatic oil pump (41) are closed. When the pneumatic oil pump (41) is in the state of exhausting air, the air outlet and the oil inlet of the pneumatic oil pump (41) are opened, and the air inlet and the oil outlet of the pneumatic oil pump (41) are closed.

10. A vehicle, comprising an oil pump system, characterized in that, The oil pump system is the oil pump system according to any one of claims 1-9.

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