Engine and vehicle

Abstract

The invention discloses an engine and a vehicle. The engine comprises a cylinder body, a cylinder cover, an oil pan and a storage piece. The cylinder cover is connected with the cylinder body and comprises a first cylinder cover body and a second cylinder cover body. The oil pan is arranged at the bottom of the cylinder body and provided with a containing cavity, and the containing cavity is used for containing oil flowing out of the cylinder body. The storage piece communicates with the containing cavity, the first cylinder cover and the second cylinder cover and is used for storing oil liquid flowing back from the containing cavity, the first cylinder cover and the second cylinder cover. According to the engine and the vehicle, the storage piece communicates with the containing cavity, the first cylinder cover and the second cylinder cover, the storage piece is used for storing the oil liquid flowing back from the containing cavity, the first cylinder cover and the second cylinder cover, and therefore backflow paths of the oil liquid in the containing cavity, the first cylinder cover and the second cylinder cover can be effectively isolated; therefore, oil return channels on the first cylinder cover and the second cylinder cover can be effectively simplified, and the structure of the engine can be simplified.

Description

Technical Field

[0001] The present application relates to the field of vehicle technology, and more particularly, to an engine and a vehicle. Background Art

[0002] With the continuous development of vehicle technology, people have increasingly higher requirements for the performance of the engine as the core structure of the vehicle. In related technologies, the engine includes a cylinder head, a cylinder block, an oil pan arranged at the bottom of the cylinder block, and an oil pump. The oil pan can store engine oil. The oil pump can transport the engine oil in the oil pan to the cylinder block and cylinder head to achieve functions such as lubrication and cooling for the various components in the cylinder block and cylinder head. Usually, the cylinder head is provided with an oil return channel, and the engine oil in the cylinder head can flow back to the oil pan through the oil return channel and the cylinder block under the action of gravity to achieve oil circulation. However, in order to ensure the oil return efficiency, the structural design of the oil return channel will be relatively complex, such as the oil return channel has many branches and the oil return channel is large in size, which is not conducive to the simplification of the engine structure. Summary of the Invention

[0003] Embodiments of the present application provide an engine and a vehicle.

[0004] The engine according to the embodiment of the present application includes a cylinder block, a cylinder head, an oil pan, and a storage element. The cylinder head is connected to the cylinder block and includes a first cylinder head and a second cylinder head. The oil pan is disposed at the bottom of the cylinder block and has a receiving cavity for receiving oil flowing out of the cylinder block. The storage element is in communication with the receiving cavity, the first cylinder head, and the second cylinder head, respectively, and is used to store oil that flows back from these cavities, the first cylinder head, and the second cylinder head.

[0005] In certain embodiments, the engine further includes a suction device, which is in communication with the storage element and is configured to allow the oil in the accommodating chamber, the first cylinder head, and the second cylinder head to flow back to the storage element.

[0006] In certain embodiments, the suction device includes a first suction member, a second suction member, and a third suction member. The first suction member communicates with the accommodating chamber and the storage member to allow the oil in the accommodating chamber to flow back to the storage member. The second suction member communicates with the first cylinder head and the storage member to allow the oil in the first cylinder head to flow back to the storage member. The third suction member communicates with the second cylinder head and the storage member to allow the oil in the second cylinder head to flow back to the storage member.

[0007] In some embodiments, at least two of the first suction member, the second suction member, and the third suction member have different power.

[0008] In some embodiments, the amount of oil in the accommodating chamber is Q1, the amount of oil in the first cylinder head is Q2, and the amount of oil in the second cylinder head is Q3, wherein the power ratio of the first suction member, the second suction member and the third suction member is Q1:Q2:Q3.

[0009] In some embodiments, the first suction member includes n pieces, and a power ratio of the first suction member, the second suction member, and the third suction member is (Q1 / n):Q2:Q3, wherein n≥1.

[0010] In certain embodiments, the oil pan is provided with an oil return port, and the oil return port includes at least one, and one first suction member is provided corresponding to the at least one oil return port.

[0011] In certain embodiments, the oil return port comprises a plurality of oil return ports, and the plurality of oil return ports are arranged at intervals.

[0012] In some embodiments, a first flow passage is provided on the cylinder body, and the first flow passage is used to supply oil to flow in the cylinder body. A second flow passage is provided on both the first cylinder head and the second cylinder head, and the second flow passage is used to supply the oil to flow in the first cylinder head and the second cylinder head.

[0013] In some embodiments, the cylinder block is provided with a plurality of cylinders and a crankshaft, the crankshaft includes a crankshaft journal and a connecting rod journal, a piston is provided in the cylinder, and the connecting rod shaft is connected to the piston through a connecting rod, and when the piston moves in the cylinder, the connecting rod moves with the piston to drive the crankshaft to rotate; when the oil flows through the first flow path, the oil is used to lubricate the crankshaft and the piston.

[0014] In certain embodiments, a cooling nozzle is provided on the cylinder body, and the cooling nozzle is used to spray the oil onto the piston to cool and lubricate the piston.

[0015] In some embodiments, the engine further includes a transmission device; a camshaft is provided on each of the first cylinder head and the second cylinder head, and the camshaft is connected to the crankshaft through the transmission device, and when the oil flows through the second flow path, the oil is used to lubricate the camshaft.

[0016] In certain embodiments, the transmission device includes a first rotating member, a second rotating member, and a transmission member. The first rotating member is connected to the crankshaft, the second rotating member is connected to the camshaft, and the transmission member is connected to both the first rotating member and the second rotating member. When the first rotating member rotates, the transmission member rotates along with the first rotating member to drive the second rotating member to rotate. A tensioner is provided on the cylinder body, and the tensioner is used to apply a tensioning force to the transmission member. When the oil flows through the first flow path, the oil is used to lubricate the tensioner.

[0017] In some embodiments, a camshaft and a variable valve timing mechanism are provided on both the first cylinder head and the second cylinder head. The camshaft is drivingly connected to the crankshaft on the cylinder block. The variable valve timing mechanism is used to adjust the rotation angle of the camshaft. When the oil flows through the second flow path, the oil is used to lubricate the camshaft and the variable valve timing mechanism.

[0018] In certain embodiments, the engine further includes an intake manifold and a supercharger. The intake manifold is connected to both the first and second cylinder heads and is configured to supply ambient air to the cylinders of the cylinder block. The supercharger is disposed on the first cylinder head and corresponds to the intake manifold. The supercharger is configured to increase the pressure of the ambient air entering the cylinders. When the oil flows through the second flow path, the oil is used to lubricate the supercharger.

[0019] In some embodiments, the engine also includes a high-pressure oil pump, which is arranged on the second cylinder head. The high-pressure oil pump is used to increase the pressure of the fuel entering the cylinder on the cylinder block. When the oil flows through the second flow path, the oil is used to lubricate the high-pressure oil pump.

[0020] A vehicle according to an embodiment of the present application includes the engine described in the above embodiment.

[0021] In the engine and vehicle of the embodiment of the present application, the storage member is connected to the accommodating chamber, the first cylinder head and the second cylinder head respectively, and the storage member is used to store the oil returning from the accommodating chamber, the first cylinder head and the second cylinder head. As a result, the return path of the oil in the accommodating chamber, the first cylinder head and the second cylinder head can be effectively isolated, thereby effectively simplifying the return oil channels on the first cylinder head and the second cylinder head, and thus helping to simplify the structure of the engine.

[0022] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become obvious from the description below, or will be learned through practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0024] Figure 1 is a schematic structural diagram of a vehicle according to certain embodiments of the present application;

[0025] Figure 2 is a schematic structural diagram of an engine according to certain embodiments of the present application;

[0026] Figure 3 It is a schematic diagram of the flow direction of oil in the first flow path and the second flow path in certain embodiments of the present application.

[0027] Description of main component symbols:

[0028] Vehicles 1000;

[0029] Engine 100; vehicle body 200; wheel 300; first flow passage 101; second flow passage 103, first oil passage 1031, second oil passage 1033;

[0030] cylinder block 10 ; cylinder head 20 , first cylinder head 21 , second cylinder head 23 ; oil pan 30 ; storage element 40 ; suction device 50 , first suction element 51 , second suction element 53 , third suction element 55 . DETAILED DESCRIPTION

[0031] 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.

[0032] In the description of this application, it should be understood that the terms "center", "length", "up", "down", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do 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.

[0033] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of such features. Throughout the description of this application, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0034] In this application, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integration; mechanical connections, electrical connections; direct connections, or indirect connections through an intermediate medium; 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 the above terms in this application based on specific circumstances.

[0035] In this application, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Furthermore, when a first feature is "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 "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.

[0036] In the related art, an engine includes a cylinder head, a cylinder block, an oil pan arranged at the bottom of the cylinder block, and an oil pump. The oil pan can store engine oil. The oil pump can transport the engine oil in the oil pan to the cylinder block and the cylinder head to realize functions such as lubrication and cooling of various components in the cylinder block and the cylinder head. Usually, the cylinder head is provided with an oil return channel, and the engine oil in the cylinder head flows back to the oil pan through the oil return channel and the cylinder block under the action of gravity to realize oil circulation. However, in order to ensure the oil return efficiency, the structural design of the oil return channel will be relatively complicated, such as the oil return channel has many branches and the oil return channel is large in size, which is not conducive to the simplification of the engine structure. In order to solve the above problems, an embodiment of the present application provides an engine 100 and a vehicle 1000.

[0037] See also Figure 1 The vehicle 1000 of the embodiment of the present application includes an engine 100. It should be noted that, in some embodiments, the vehicle 1000 includes but is not limited to passenger vehicles such as pure electric vehicles and hybrid vehicles or large-scale engineering vehicles with less severe working conditions.

[0038] Furthermore, in certain embodiments, vehicle 1000 further includes a body 200 and wheels 300. Wheels 300 are disposed on body 200 and are capable of moving relative to body 200 to enable movement of vehicle 1000 (e.g., forward, backward, or steering). Engine 100 is disposed on body 200 and connected to wheels 300. When engine 100 is operating stably, engine 100 can provide power for the movement of wheels 300.

[0039] Among them, since the vehicle 1000 in this embodiment includes the engine 100, it can be understood that the vehicle 1000 includes at least the same beneficial effects as the engine 100. Therefore, for the beneficial effects of the vehicle 1000, please refer to the beneficial effects of the engine 100 described below.

[0040] See also Figure 1 and Figure 2 The engine 100 according to the embodiment of the present application includes a cylinder block 10, a cylinder head 20, an oil pan 30, and a storage element 40. The cylinder head 20 is connected to the cylinder block 10 and includes a first cylinder head 21 and a second cylinder head 23. The oil pan 30 is disposed at the bottom of the cylinder block 10 and has a receiving chamber for receiving oil flowing out of the cylinder block 10. The storage element 40 is in communication with the receiving chamber, the first cylinder head 21, and the second cylinder head 23, respectively, and is used to store oil that flows back from the receiving chamber, the first cylinder head 21, and the second cylinder head 23.

[0041] The cylinder block 10, cylinder head 20 (including the first cylinder head 21 and the second cylinder head 23), and oil pan 30 are all made of materials including, but not limited to, cast iron, alloy cast iron, and aluminum alloy. For example, the cylinder block 10, cylinder head 20, and oil pan 30 can all be made of aluminum alloy, thereby reducing the overall weight of the engine 100 and improving the heat dissipation performance of the engine 100.

[0042] The storage element 40 is a device for storing oil. In certain embodiments of the present application, the storage element 40 is in communication with the accommodating chamber, the first cylinder head 21, and the second cylinder head 23, respectively. This means that the oil return paths of the accommodating chamber, the first cylinder head 21, and the second cylinder head 23 are separated. The storage element 40 may be an oil jug. It will be understood that in certain embodiments, because the accommodating chamber is used to hold oil flowing out of the cylinder block 10, the oil return paths of the accommodating chamber, the first cylinder head 21, and the second cylinder head 23 are separated. This means that the oil return paths of the cylinder block 10, the first cylinder head 21, and the second cylinder head 23 are separated.

[0043] In certain embodiments of the present application, the first cylinder head 21 and the second cylinder head 23 are arranged at an angle. The engine 100 includes but is not limited to an in-line engine, a V-type engine, a W-type engine, and a horizontally opposed engine. For example, when the engine 100 is a V-type engine, the angle between the first cylinder head 21 and the second cylinder head 23 may be 60° or 90°, that is, the angle formed by the line connecting the center of the first cylinder head 21 and the center of the cylinder block 10 (hereinafter referred to as the first line) and the line connecting the center of the second cylinder head 23 and the center of the cylinder block 10 (hereinafter referred to as the second line) is 60° or 90°. For another example, when the engine 100 is a horizontally opposed engine, the angle between the first cylinder head 21 and the second cylinder head 23 may be 180°, that is, the angle formed by the first line and the second line is 180°. In the embodiments of the present application, the engine 100 is described as an example including a horizontally opposed engine.

[0044] In the engine 100 of the embodiment of the present application, the storage component 40 is connected to the accommodating chamber, the first cylinder head 21 and the second cylinder head 23 respectively. The storage component 40 is used to store the oil returning from the accommodating chamber, the first cylinder head 21 and the second cylinder head 23. Thus, the return path of the oil in the accommodating chamber, the first cylinder head 21 and the second cylinder head 23 can be effectively isolated, thereby effectively simplifying the return oil channels on the first cylinder head 21 and the second cylinder head 23, which is beneficial to simplifying the structure of the engine 100.

[0045] The engine 100 will be further described below with reference to the accompanying drawings.

[0046] See also Figure 1 and Figure 2 In certain embodiments, the engine 100 further includes a suction device 50, which is in communication with the storage element 40. The suction device 50 is configured to return the oil in the accommodating chamber, the first cylinder head 21, and the second cylinder head 23 to the storage element 40. The suction device 50 is capable of pumping the oil from the accommodating chamber, the first cylinder head 21, and the second cylinder head 23 into the storage element 40. Thus, the provision of the suction device 50 can effectively simplify the structure of the oil return passage. Specifically, the provision of the suction device 50 can ensure oil return efficiency without requiring the oil return passage to have multiple branches or a larger size, thereby simplifying the structure of the engine 100.

[0047] Specifically, in some embodiments, the suction device 50 is disposed outside the cylinder body 10 and is capable of connecting the storage element 40 with the accommodating chamber, the first cylinder head 21 and the second cylinder head 23 respectively, so that the oil in the accommodating chamber, the first cylinder head 21 and the second cylinder head 23 can flow back to the storage element 40.

[0048] For example, the suction device 50 may include a suction pump. When the suction pump is operating stably, the suction pump can allow the oil in the accommodating chamber, the first cylinder head 21, and the second cylinder head 23 to flow back to the storage element 40. In one example, one suction pump is provided, and the suction pump is connected to the accommodating chamber, the first cylinder head 21, and the second cylinder head 23 via three pipes. In another example, three suction pumps are provided, and the three suction pumps are connected to the accommodating chamber, the first cylinder head 21, and the second cylinder head 23, respectively.

[0049] Furthermore, in some embodiments, the suction device 50 includes a first suction member 51, a second suction member 53, and a third suction member 55. The first suction member 51 connects the accommodating chamber and the storage member 40 to allow the oil in the accommodating chamber to flow back into the storage member 40. The second suction member 53 connects the first cylinder head 21 and the storage member 40 to allow the oil in the first cylinder head 21 to flow back into the storage member 40. The third suction member 55 connects the second cylinder head 23 and the storage member 40 to allow the oil in the second cylinder head 23 to flow back into the storage member 40. It should be noted that in some embodiments, the first suction member 51, the second suction member 53, and the third suction member 55 can all be oil pumps, oil return pumps, vacuum pumps, etc., without limitation herein.

[0050] Since the amount of oil in the accommodating chamber, the first cylinder head 21 and the second cylinder head 23 may be different, for example, the amount of oil Q1 in the accommodating chamber may be greater than the amount of oil Q2 in the first cylinder head 21, and the amount of oil Q2 in the first cylinder head 21 may be greater than the amount of oil Q3 in the second cylinder head 23, therefore, if the power of the first suction member 51, the second suction member 53 and the third suction member 55 are the same, power waste may occur. For example, at the same time, the suction member with lower power has not completely extracted the oil, while the suction member with higher power is in an empty pumping state, that is, the suction member with higher power has no oil to extract.

[0051] In certain embodiments of the present application, at least two of the first suction member 51, the second suction member 53, and the third suction member 55 have different powers. Thus, the suction device 50 can be configured accordingly based on the different amounts of oil in the accommodating chamber, the first cylinder head 21, and the second cylinder head 23. This ensures that the oil in the accommodating chamber, the first cylinder head 21, and the second cylinder head 23 can flow smoothly back to the storage member 40. It also reduces power waste and improves the operating efficiency of the engine 100. Furthermore, it prevents damage to the suction device 50 caused by an idle state, ensuring its normal operation.

[0052] Moreover, the arrangement of the first suction member 51, the second suction member 53 and the third suction member 55 can effectively isolate the return path of the oil in the accommodating chamber, the first cylinder head 21 and the second cylinder head 23, and the second suction member 53 and the third suction member 55 can respectively suck the oil in the first cylinder head 21 and the second cylinder head 23 out into the storage member 40, thereby simplifying the structure of the oil return channel, thereby facilitating the simplification of the structure of the engine 100.

[0053] In addition, when the engine 100 is a horizontally opposed engine, it is difficult for the oil in the first cylinder head 21 and the second cylinder head 23 to flow back to the oil pan 30 by gravity. Therefore, the setting of the suction device 50 can also ensure the reflux of the oil, thereby ensuring the circulation of the oil in the engine 100.

[0054] Optionally, the power of the first suction member 51 , the second suction member 53 and the third suction member 55 are all different. In this case, the amount of oil in the accommodating chamber, the first cylinder head 21 and the second cylinder head 23 are all different.

[0055] Optionally, the power of the first suction member 51 is different from that of the second suction member 53, and the power of the second suction member 53 is the same as that of the third suction member 55. In this case, the amount of oil Q1 in the accommodating chamber is different from the amount of oil Q2 in the first cylinder head 21, and the amount of oil Q2 in the first cylinder head 21 is the same as the amount of oil Q3 in the second cylinder head 23.

[0056] Optionally, the power of the first suction member 51 is the same as that of the second suction member 53, and the power of the second suction member 53 is different from that of the third suction member 55. In this case, the amount of oil Q1 in the accommodating chamber is the same as the amount of oil Q2 in the first cylinder head 21, and the amount of oil Q2 in the first cylinder head 21 is different from the amount of oil Q3 in the second cylinder head 23.

[0057] Optionally, the power of the first suction member 51 is the same as that of the third suction member 55, and the power of the second suction member 53 is different from that of the third suction member 55. In this case, the amount of oil Q1 in the accommodating chamber is the same as the amount of oil Q3 in the second cylinder head 23, and the amount of oil Q2 in the first cylinder head 21 is different from the amount of oil Q3 in the second cylinder head 23.

[0058] Specifically, in some embodiments, the amount of oil in the accommodating chamber is Q1, the amount of oil in the first cylinder head 21 is Q2, and the amount of oil in the second cylinder head 23 is Q3, wherein the power ratio of the first suction member 51, the second suction member 53 and the third suction member 55 is Q1:Q2:Q3.

[0059] More specifically, in some embodiments, the first suction members 51 include n members, and the power ratio of the first suction member 51, the second suction member 53, and the third suction member 55 is (Q1 / n):Q2:Q3, where n ≥ 1. It should be noted that in this embodiment, when the first suction members 51 include at least two members (n ≥ 2), the power of at least two first suction members 51 is the same.

[0060] For example, when the first suction member 51 includes two, that is, when n=2, the power ratio of the first suction member 51, the second suction member 53 and the third suction member 55 is (Q1 / 2):Q2:Q3

[0061] In some embodiments, the oil pan 30 is provided with an oil return port, and the oil return port includes at least one, and a first suction member 51 is provided corresponding to the at least one oil return port.

[0062] Specifically, in some embodiments, the first suction member 51 is connected to the accommodating chamber via an oil return port. Thus, the oil in the accommodating chamber can flow back to the storage member 40 through the oil return port and the first suction member 51. In some embodiments of the present application, one first suction member 51 can correspond to two oil return ports, thereby improving the suction efficiency of the first suction member 51.

[0063] Since the oil level in the oil pan 30 will change when the vehicle 1000 is in a state of use such as going up or down a slope at a large angle or tilting at a large angle, at this time, if there is only one oil return port, the oil in the accommodating chamber may not cover the oil return port, resulting in the oil in the accommodating chamber being unable to flow back to the storage component 40 in a timely and effective manner, affecting the normal operation of the engine 100.

[0064] In certain embodiments of the present application, the oil return port includes multiple oil return ports, and the multiple oil return ports are arranged at intervals. In this way, when the oil level in the oil pan 30 changes, the oil can still cover at least part of the oil return port, thereby ensuring that the oil in the accommodating cavity is promptly and effectively converged to the storage element 40, ensuring the normal operation of the engine 100.

[0065] In certain embodiments of the present application, the first cylinder head 21 is provided with at least one oil return port, and the second suction member 53 is provided corresponding to the at least one oil return port. Exemplarily, one second suction member 53 corresponds to two oil return ports. The second cylinder head 23 is provided with at least one oil return port, and the third suction member 55 is provided corresponding to the at least one oil return port. Exemplarily, one third suction member 55 corresponds to two oil return ports.

[0066] See also Figures 1 to 3In some embodiments, a first flow passage 101 is provided on the cylinder body 10, and the first flow passage 101 is used to supply oil to flow in the cylinder body 10. A second flow passage 103 is provided on the first cylinder head 21 and the second cylinder head 23, and the second flow passage 103 is used to supply oil to flow in the first cylinder head 21 and the second cylinder head 23.

[0067] Specifically, in certain embodiments, when the oil flows through the first flow passage 101, the oil can lubricate, cool, and clean the structures on the cylinder block 10, and the oil in the first flow passage 101 can flow out into the accommodating cavity of the oil pan 30. When the oil flows through the second flow passage 103 (hereinafter referred to as the first oil passage 1031) of the first cylinder head 21, the oil can lubricate, cool, and clean the structures on the first cylinder head 21. When the oil flows through the second flow passage 103 (hereinafter referred to as the second oil passage 1033) of the second cylinder head 23, the oil can lubricate, cool, and clean the structures on the second cylinder head 23.

[0068] More specifically, in some embodiments, the first flow passage 101 is connected to the second flow passage 103, that is, the first flow passage 101 is connected to the first oil passage 1031 and the second oil passage 1033 respectively, so that the oil can flow into the first oil passage 1031 and the second oil passage 1033 through the first flow passage 101.

[0069] In some embodiments, a conveying member is provided on the storage member 40, which connects the storage member 40 and the first flow path 101. The conveying member can convey the oil in the storage member 40 to the first flow path 101. The oil flows in the first flow path 101 and flows into the second flow path 103 (the first oil path 1031 and the second oil path 1033) through the first flow path 101. Moreover, after the oil completes the functions of lubricating the structures on the cylinder block 10, the first cylinder head 21 and the second cylinder head 23, the oil can flow back to the storage member 40 through the suction device 50, thereby realizing the circulation of the oil in the engine 100.

[0070] In some embodiments, the cylinder body 10 is provided with multiple cylinders and a crankshaft, the crankshaft includes a crankshaft journal and a connecting rod journal, a piston is provided in the cylinder, and the connecting rod shaft is connected to the piston through a connecting rod. When the piston moves in the cylinder, the connecting rod moves with the piston to drive the crankshaft to rotate; when the oil flows through the first flow path 101, the oil is used to lubricate the crankshaft and the piston.

[0071] Specifically, in certain embodiments, when outside air and fuel mix and combust within the cylinder, the high-temperature, high-pressure gas generated by the combustion can propel the piston within the cylinder. Since the connecting rod can move along with the piston to drive the crankshaft, the connecting rod can convert the piston's linear motion into its rotational motion, thereby achieving power output for the engine 100. Furthermore, when oil flows through the first flow passage 101, the oil can lubricate the crankshaft, connecting rod, and piston, thereby ensuring smooth movement, reducing structural wear, and improving the stability and reliability of the engine 100.

[0072] Furthermore, in some embodiments, the engine 100 also includes an intake manifold and a supercharger. The intake manifold is connected to both the first cylinder head 21 and the second cylinder head 23. The intake manifold is used to supply ambient air to the cylinders of the cylinder block 10. The supercharger is disposed in the first cylinder head 21 and corresponds to the intake manifold. The supercharger is used to increase the pressure of the ambient air entering the cylinders. When oil flows through the second flow path 103, the oil is used to lubricate the supercharger. This ensures the normal operation of the supercharger and extends its service life.

[0073] The provision of a supercharger can increase the amount of intake air, thereby enabling sufficient combustion of fuel, and thereby increasing the power and torque of the engine 100. It should be noted that in certain embodiments, the supercharger includes, but is not limited to, an exhaust gas turbocharger, a mechanical turbocharger, and an electrically assisted turbocharger.

[0074] In some embodiments, a cooling nozzle is provided on the cylinder body 10, and the cooling nozzle is used to spray oil onto the piston to cool and lubricate the piston.

[0075] Specifically, in certain embodiments, while oil flows through first flow passage 101, it can be sprayed onto the piston via cooling nozzles. This allows the oil on the piston to form an oil film during its movement, thereby reducing wear between the piston and the cylinder wall and extending the service life of the piston and cylinder. Furthermore, the oil sprayed onto the piston removes heat from the piston during its flow, thereby cooling and dissipating heat, ensuring its proper function.

[0076] See also Figure 2 and Figure 3 In some embodiments, the engine 100 further includes a transmission device. Camshafts are provided on both the first cylinder head 21 and the second cylinder head 23. The camshafts are connected to the crankshaft via the transmission device. When the oil flows through the second flow path 103, the oil is used to lubricate the camshafts.

[0077] Specifically, in certain embodiments, when the crankshaft rotates, the crankshaft can drive the camshaft on the first cylinder head 21 (hereinafter referred to as the first camshaft) and the camshaft on the second cylinder head 23 (hereinafter referred to as the second camshaft) to rotate via a transmission device. Thus, the first camshaft can control the opening and closing of the valves on the first cylinder head 21 through rotation, and the second camshaft can control the opening and closing of the valves on the second cylinder head 23 through rotation. When oil flows through the first oil passage 1031, the oil can lubricate the first camshaft; when oil flows through the second oil passage 1033, the oil can lubricate the second camshaft.

[0078] It should be noted that, in some embodiments, the camshaft includes an intake camshaft and an exhaust camshaft. When the oil flows through the second flow passage 103 , the oil is used to lubricate the intake camshaft and the exhaust camshaft.

[0079] More specifically, in some embodiments, the transmission device includes a first rotating member, a second rotating member and a transmission member, the first rotating member is connected to the crankshaft, the second rotating member is connected to the camshaft, and the transmission member is connected to both the first rotating member and the second rotating member. When the first rotating member rotates, the transmission member rotates with the first rotating member to drive the second rotating member to rotate.

[0080] Specifically, in certain embodiments, when the crankshaft rotates, the crankshaft can drive the first rotating member to rotate, and the transmission member rotates along with the first rotating member, thereby driving the second rotating member to rotate. In this way, the second rotating member can drive the camshaft to rotate, thereby adjusting the opening and closing of the valve. It should be noted that in one example, the first rotating member and the second rotating member are both gears, and the transmission member is a chain. In another example, the first rotating member and the second rotating member are both pulleys, and the transmission member is a belt.

[0081] Please combine Figure 1 In some embodiments, a tensioner is provided on the cylinder body 10 to apply tension to the transmission member. When oil flows through the first flow passage 101, the oil is used to lubricate the tensioner. It should be noted that in some embodiments, the tensioner may be a hydraulic tensioner.

[0082] The tensioner is a device used to adjust the tension of a transmission component. The tensioner ensures that the transmission component maintains the correct path and direction during transmission, preventing the transmission component from being too loose or too tight, which could affect the operation of the transmission device, thereby ensuring the normal operation of the engine 100. In this application, when oil flows through the first flow path 101, the oil is used to lubricate the tensioner, thereby preventing wear of the tensioner's internal structures (such as bearings) and ensuring the stability and reliability of the tensioner's operation.

[0083] In some embodiments, a camshaft and a variable valve timing mechanism (VVT) are provided on both the first cylinder head 21 and the second cylinder head 23. The camshaft is connected to the crankshaft on the cylinder body 10. The variable valve timing mechanism is used to adjust the rotation angle of the camshaft. When the oil flows through the second flow passage 103, the oil is used to lubricate the camshaft and the variable valve timing mechanism.

[0084] VVT can optimize the performance of engine 100, reduce fuel consumption, and improve efficiency. When engine 100 requires more air intake (e.g., when vehicle 100 is accelerating or climbing a hill), VVT can advance the valve opening time to increase air intake and boost engine 100 power. When engine 100 is under low load, VVT can delay the valve opening time to stabilize combustion and reduce fuel consumption and emissions.

[0085] Specifically, in some embodiments, when the oil flows through the first oil circuit 1031, the oil can lubricate the first camshaft and the VVT on the first cylinder head 21 (hereinafter referred to as the first VVT); when the oil flows through the second oil circuit 1033, the oil can lubricate the second camshaft and the VVT on the second cylinder head 23 (hereinafter referred to as the second VVT), thereby ensuring the normal operation of the VVT and extending the service life of the high-pressure oil pump.

[0086] In some embodiments, the engine 100 also includes a high-pressure oil pump, which is disposed on the second cylinder head 23. The high-pressure oil pump is used to increase the pressure of the fuel entering the cylinder on the cylinder block 10. When the oil flows through the second flow path 103, the oil is used to lubricate the high-pressure oil pump.

[0087] Specifically, in certain embodiments, when oil flows through the second oil passage 1033, the oil can lubricate the high-pressure oil pump, thereby reducing wear on the internal structure of the high-pressure oil pump, ensuring the normal operation of the high-pressure oil pump, and extending the service life of the high-pressure oil pump. The provision of the high-pressure oil pump can enhance the atomization of the fuel, thereby allowing the fuel and external air to be fully mixed in the cylinder, improving combustion efficiency, and thereby increasing the power of the engine 100. It should be noted that in certain embodiments, the high-pressure oil pump includes, but is not limited to, a one-way plunger pump, a two-way plunger pump, and a common rail high-pressure oil pump.

[0088] In summary, the amount of oil Q1 in the accommodating chamber includes at least the oil for lubricating the crankshaft and the piston, the oil for lubricating the tensioner, and the oil for cooling and lubricating the piston; the amount of oil Q2 in the first cylinder head 21 includes at least the oil for lubricating the camshaft (first camshaft) and the variable valve timing mechanism, as well as the oil for lubricating the supercharger; the amount of oil Q3 in the second cylinder head 23 includes at least the oil for lubricating the camshaft (second camshaft) and the variable valve timing mechanism, as well as the oil for lubricating the high-pressure oil pump.

[0089] In some embodiments, the high-pressure oil pump can also be set in the first cylinder head 21, and the supercharger can also be set in the second cylinder head 23. At this time, the oil volume Q2 of the first cylinder head 21 includes oil for lubricating the high-pressure oil pump; the oil volume Q3 of the second cylinder head 23 includes oil for lubricating the supercharger.

[0090] In some embodiments, there are two high-pressure oil pumps, which can be respectively arranged in the first cylinder head 21 and the second cylinder head 23; there are two superchargers, which can be respectively arranged in the first cylinder head 21 and the second cylinder head 23. At this time, the oil quantity Q2 of the first cylinder head 21 includes oil for lubricating the high-pressure oil pump and oil for lubricating the supercharger; the oil quantity Q3 of the second cylinder head 23 includes oil for lubricating the supercharger and oil for lubricating the high-pressure oil pump.

[0091] The technical features of the above-described embodiments may be combined in any manner. To simplify the description, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there are no conflicts in the combination of these technical features, they should be considered to be within the scope of this specification. Furthermore, other implementations can be derived from the above-described embodiments, allowing for structural and logical substitutions and changes without departing from the scope of this disclosure.

[0092] 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. 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, all of which 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 engine (100), characterized in that: include: Cylinder (10); a cylinder head (20), the cylinder head (20) being connected to the cylinder body (10) and comprising a first cylinder head (21) and a second cylinder head (23); an oil pan (30), the oil pan (30) being arranged at the bottom of the cylinder (10) and having a receiving cavity for receiving oil flowing out of the cylinder (10); and A storage element (40) is connected to the accommodating chamber, the first cylinder head (21) and the second cylinder head (23) respectively, and the storage element (40) is used to store oil returning from the accommodating chamber, the first cylinder head (21) and the second cylinder head (23).

2. The engine (100) according to claim 1, characterized in that The engine (100) further comprises: A suction device (50) is connected to the storage element (40), and the suction device (50) is used to allow the oil in the accommodating chamber, the first cylinder head (21) and the second cylinder head (23) to flow back to the storage element (40).

3. The engine (100) according to claim 2, characterized in that The suction device (50) comprises: a first suction member (51), the first suction member (51) being in communication with the accommodating chamber and the storage member (40) to allow the oil in the accommodating chamber to flow back to the storage member (40); a second suction member (53), the second suction member (53) being in communication with the first cylinder head (21) and the storage member (40) to allow the oil in the first cylinder head (21) to flow back to the storage member (40); and A third suction member (55) is connected to the second cylinder head (23) and the storage member (40) to allow the oil in the second cylinder head (23) to flow back to the storage member (40).

4. The engine (100) according to claim 3, characterized in that At least two of the first suction member (51), the second suction member (53) and the third suction member (55) have different powers.

5. The engine (100) according to claim 3, characterized in that The amount of oil in the accommodating chamber is Q1, the amount of oil in the first cylinder head (21) is Q2, and the amount of oil in the second cylinder head (23) is Q3, wherein the power ratio of the first suction member (51), the second suction member (53) and the third suction member (55) is Q1:Q2:Q3.

6. The engine (100) according to claim 5, characterized in that The first suction piece (51) includes n pieces, and a power ratio of the first suction piece (51), the second suction piece (53) and the third suction piece (55) is (Q1 / n):Q2:Q3, wherein n≥1.

7. The engine (100) according to claim 3, characterized in that The oil pan (30) is provided with an oil return port, and the oil return port includes at least one, and one first suction member (51) is provided corresponding to the at least one oil return port.

8. The engine (100) according to claim 7, characterized in that The oil return ports include a plurality of oil return ports, which are arranged at intervals.

9. The engine (100) according to claim 1, characterized in that The cylinder body (10) is provided with a first flow passage (101), and the first flow passage (101) is used to supply oil to flow in the cylinder body (10); the first cylinder head (21) and the second cylinder head (23) are both provided with a second flow passage (103), and the second flow passage (103) is used to supply the oil to flow in the first cylinder head (21) and the second cylinder head (23).

10. The engine (100) according to claim 9, characterized in that The cylinder body (10) is provided with a plurality of cylinders and a crankshaft, the crankshaft includes a crankshaft journal and a connecting rod journal, a piston is provided in the cylinder, the connecting rod shaft is connected to the piston via a connecting rod, when the piston moves in the cylinder, the connecting rod moves along with the piston to drive the crankshaft to rotate; when the oil flows through the first flow path (101), the oil is used to lubricate the crankshaft and the piston.

11. The engine (100) according to claim 10, characterized in that The cylinder body (10) is provided with a cooling nozzle, and the cooling nozzle is used to spray the oil onto the piston to cool and lubricate the piston.

12. The engine (100) according to claim 10, characterized in that The engine (100) further includes a transmission device; a camshaft is provided on each of the first cylinder head (21) and the second cylinder head (23); the camshaft is connected to the crankshaft through the transmission device; when the oil flows through the second flow path (103), the oil is used to lubricate the camshaft.

13. The engine (100) according to claim 12, characterized in that The transmission device includes a first rotating member, a second rotating member, and a transmission member, wherein the first rotating member is connected to the crankshaft, the second rotating member is connected to the camshaft, and the transmission member is connected to both the first rotating member and the second rotating member. When the first rotating member rotates, the transmission member rotates together with the first rotating member to drive the second rotating member to rotate; A tensioner is provided on the cylinder body (10), and the tensioner is used to apply tensioning force to the transmission member. When the oil flows through the first flow path (101), the oil is used to lubricate the tensioner.

14. The engine (100) according to claim 9, characterized in that The first cylinder head (21) and the second cylinder head (23) are both provided with a camshaft and a variable valve timing mechanism. The camshaft is connected to the crankshaft on the cylinder body (10) in a transmission manner. The variable valve timing mechanism is used to adjust the rotation angle of the camshaft. When the oil flows through the second flow path (103), the oil is used to lubricate the camshaft and the variable valve timing mechanism.

15. The engine (100) according to claim 9, characterized in that The engine (100) further comprises: an intake manifold, the intake manifold being connected to both the first cylinder head (21) and the second cylinder head (23), the intake manifold being used for supplying external air into the cylinders on the cylinder block (10); and A supercharger is provided on the first cylinder head (21) and corresponds to the intake manifold, the supercharger is used to increase the pressure of the external air entering the cylinder, and when the oil flows through the second flow path (103), the oil is used to lubricate the supercharger.

16. The engine (100) according to claim 9, characterized in that The engine (100) further comprises: A high-pressure oil pump is provided on the second cylinder head (23), and is used to increase the pressure of the fuel entering the cylinder on the cylinder body (10). When the oil flows through the second flow path (103), the oil is used to lubricate the high-pressure oil pump.

17. A vehicle (1000), characterized in that include: The engine (100) according to any one of claims 1 to 16.

Images