Lubricating structure of engine

Abstract

The utility model belongs to the technical field of engine accessories, and provides a lubricating structure of an engine, which comprises an engine main body, an oil pan and an oil storage chamber cover, the oil pan is detachably mounted at the bottom of the engine main body, the oil storage chamber cover is detachably mounted on one side of the engine main body, and an oil storage chamber is formed on the side portion of the engine main body. A bearing part for bearing lubricating oil is arranged on the oil pan, a high-pressure oil pump and an oil scavenger pump are arranged on the engine body, input ports of the high-pressure oil pump and the oil scavenger pump are communicated with the bearing part, an output port of the oil scavenger pump is communicated with the oil storage chamber, and an oil outlet hole of the high-pressure oil pump is connected with a high-pressure runner on the engine body. The heat dissipation area of the oil storage chamber can be increased, it is guaranteed that the heat dissipation speed of lubricating oil is high, the problem that when the engine body inclines, a high-pressure oil pump cannot pump the lubricating oil can be solved, and it is guaranteed that all parts of the engine body can be fully lubricated and cooled under various road conditions.

Description

TECHNICAL FIELD

[0001] The lubricating structure of an engine belongs to the technical field of engine accessories. BACKGROUND

[0002] At present, the engine used by vehicles is generally an internal combustion engine, which needs lubricating oil for lubrication during operation to ensure the service life of each component. At present, an oil pan is usually arranged at the bottom of the engine, and a lubricating oil chamber is formed between the oil pan and the engine, and the lubricating oil is stored in the lubricating oil chamber. The lubricating oil pumped into each lubricating part of the engine will fall into the oil pan at the bottom during work, and the lubricating oil falling into the oil pan will be transported to each lubricating part of the engine again through the oil pump, so that the lubrication of each lubricating part can be realized, and the purpose of cooling the transmission components can be achieved.

[0003] The engine used on an all-terrain vehicle or a snowmobile often encounters road conditions such as climbing slopes due to the poor driving conditions, and the high-pressure oil pump cannot pump lubricating oil after tilting. Secondly, due to the limited bottom area of the engine, the heat dissipation area of the lubricating oil is small, and the heat dissipation effect is poor, so that the cooling effect of the lubricating oil on each component is poor. CONTENT OF THE UTILITY MODEL

[0004] The technical problem to be solved by the utility model is to overcome the shortcomings of the prior art, provide a lubricating structure of an engine which can avoid the problem that effective lubrication cannot be achieved when running to an inclined slope, and can increase the heat dissipation area to ensure good heat dissipation effect of the lubricating oil.

[0005] The technical scheme adopted by the utility model to solve the technical problem is: a lubricating structure of an engine, comprising an engine main body, an oil pan and an oil storage chamber cover, the oil pan is detachably installed at the bottom of the engine main body, the oil storage chamber cover is detachably installed on one side of the engine main body, and an oil storage chamber is formed on the side of the engine main body, a receiving part for receiving lubricating oil is arranged on the oil pan, a high-pressure oil pump and an oil return pump are arranged on the engine main body, the input ports of the high-pressure oil pump and the oil return pump are in communication with the receiving part, the output port of the oil return pump is in communication with the oil storage chamber, and the oil outlet hole of the high-pressure oil pump is connected with the high-pressure flow channel on the engine main body.

[0006] Further, the receiving part comprises an oil return flow channel and a lubricating oil channel arranged on the top of the oil pan, the oil return flow channel and the lubricating oil channel are independently arranged, the input port of the oil return pump is in communication with the oil return flow channel, and the input port of the high-pressure oil pump is in communication with the lubricating flow channel.

[0007] Further, the oil return flow channel comprises a first oil channel and a second oil channel, the first oil channel and the second oil channel are independently arranged, and the input port of the oil return pump is in communication with the first oil channel and the second oil channel at the same time. Further, the oil return flow channel comprises a first oil channel and a second oil channel, the first oil channel and the second oil channel are independently arranged, and the input port of the oil return pump is in communication with the first oil channel and the second oil channel at the same time.

[0008] Furthermore, the receiving portion also includes a receiving groove arranged on the oil pan, the receiving groove corresponds one-to-one to the cylinder body of the engine body, and is arranged directly below the corresponding cylinder body, and each receiving groove is connected to the first oil channel through a connecting hole.

[0009] Furthermore, a return oil groove is provided at one end of the return oil flow channel, and the input port of the return oil pump is connected to the return oil groove. A lubricating oil groove is provided at one end of the lubricating oil channel, and the input port of the high-pressure oil pump is connected to the lubricating oil groove. An oil filter is provided between the input port of the return oil pump and the return oil groove and between the input port of the high-pressure oil pump and the lubricating oil groove.

[0010] Compared with the prior art, the present invention has the following beneficial effects:

[0011] The oil storage chamber of the engine of the present invention is located on one side of the engine body, thereby increasing the heat dissipation area of ​​the oil storage chamber, ensuring that the heat dissipation speed of the lubricating oil is fast, and further ensuring that the lubricating oil can fully lubricate all parts to be lubricated while also fully cooling them, with a good cooling effect; secondly, since the oil storage chamber of the engine body is located on one side, the oil pan is only used to receive the lubricating oil dropped from the engine body, and circulates it through the high-pressure oil pump and the return oil pump, thereby avoiding the problem that the high-pressure oil pump cannot extract the lubricating oil when the engine body is tilted, and ensuring that all parts of the engine body can be fully lubricated and cooled under various road conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Fig. 1 It is a schematic diagram of the three-dimensional structure of the main body of the engine;

[0013] Fig. 2 It is a schematic diagram of the three-dimensional structure of the dry sump;

[0014] Fig. 3 It is a schematic diagram of the local structure inside the engine main body of the utility model.

[0015] In the figure: 1. Engine body; 2. Oil reservoir cover; 3. Oil pan; 4. Oil inlet; 5. Exhaust gas turbocharger; 6. Oil drain port; 7. Oil filter; 8. First oil return tank; 9. Second oil return tank; 10. Second oil channel; 11. First oil channel; 12. Connecting hole; 13. Receiving tank; 14. Lubricating oil tank; 15. High-pressure oil pump; 16. Return oil pump. DETAILED DESCRIPTION

[0016] The present invention will be further described below in conjunction with specific embodiments. However, people familiar with the art should understand that the detailed description given here in conjunction with the drawings is for better explanation, and the structure of the present invention must go beyond these limited embodiments. For some equivalent replacement solutions or common means, they will not be described in detail herein, but they still fall within the scope of protection of this application.

[0017] Figs. 1-3 This is the best embodiment of the present invention, Fig. 1 ~Attached Fig. 3 The utility model is further described.

[0018] Refer to the attached Figs. 1-3 A lubrication structure of an engine includes an engine main body 1, an oil pan 3 and an oil storage chamber cover 2, the oil pan 3 is detachably mounted on the bottom of the engine main body 1, the oil storage chamber cover 2 is detachably mounted on one side of the engine main body 1, and an oil storage chamber is formed on the side of the engine main body 1, a receiving portion for receiving lubricating oil is provided on the oil pan 3, a high-pressure oil pump 15 and a return oil pump 16 are provided on the engine main body 1, the input ports of the high-pressure oil pump 15 and the return oil pump 16 are both connected to the receiving portion, the output port of the return oil pump 16 is connected to the oil storage chamber, and the oil outlet of the high-pressure oil pump 15 is connected to the high-pressure flow channel on the engine main body 1. The oil storage chamber of the engine of the present invention is located on one side of the engine body 1, thereby increasing the heat dissipation area of ​​the oil storage chamber, ensuring that the heat dissipation speed of the lubricating oil is fast, and further ensuring that the lubricating oil can fully lubricate all parts to be lubricated while also fully cooling them, with a good cooling effect; secondly, since the oil storage chamber of the engine body 1 is located on one side, the oil pan 3 is only used to receive the lubricating oil dropped from the engine body 1, and circulates it through the high-pressure oil pump 15 and the return oil pump 16, thereby avoiding the problem that the high-pressure oil pump 15 cannot extract the lubricating oil when the engine body 1 is tilted, and ensuring that all parts of the engine can be fully lubricated and cooled under various road conditions.

[0019] Specifically, the receiving portion includes an oil return channel, a lubrication channel, and a receiving groove 13 provided on the top of the oil pan 3 , wherein the oil return channel includes a first oil channel 11 and a second oil channel 10 .

[0020] The receiving groove 13 is located in the middle of the oil pan 3. The receiving groove 13 corresponds to each cylinder of the engine body 1 and is located directly below the corresponding cylinder to receive the lubricating oil flowing down from the cylinder. In this embodiment, the engine body 1 is provided with three cylinders, so there are three receiving grooves 13 arranged side by side.

[0021] The first oil passage 11 is arranged at one side of the three receiving grooves 13, and a through part is arranged on the first oil passage 11. A communication hole 12 is arranged at one side of each receiving groove 13 close to the first oil passage 11. The through part is communicated with the corresponding communication hole 12 respectively. A first oil return groove 8 is arranged at one end of the first oil passage 11. The receiving groove 13 receives the lubricating oil flowing down from the cylinder of the engine body 1. The lubricating oil flows into the first oil passage 11 through the communication hole 12 and the through part, and then flows into the first oil return groove 8 through the first oil passage 11.

[0022] The second oil passage 10 is arranged side by side with the first oil passage 11. The first oil passage 11 is arranged between the second oil passage 10 and each receiving groove 13. A second oil return groove 9 is arranged at one end of the second oil passage 10 close to the first oil return groove 8. The other end of the second oil passage 10 is bent towards the receiving groove 13, and is communicated with the oil inlet hole 4 arranged at one side of the oil pan 3. The second oil passage 10 receives the lubricating oil flowing down from each lubricating part. The oil inlet hole 4 can also receive the lubricating oil flowing back from outside, and then the lubricating oil flows back into the second oil return groove 9 through the second oil passage 10.

[0023] A lubricating flow channel is arranged at one side of the receiving groove 13 away from the first oil passage 11. A plurality of extension parts are arranged on the lubricating flow channel. The extension part is arranged between every two adjacent receiving grooves 13. A lubricating oil groove 14 is arranged at one end of the first oil passage 11 close to the first oil return groove 8. The lubricating flow channel receives the lubricating oil flowing down from the cylinder of the engine body 1, and then the lubricating oil flows back into the lubricating oil groove 14 through the lubricating flow channel.

[0024] The high-pressure oil pump 15 and the oil return pump 16 are arranged in the engine body 1. The input port of the high-pressure oil pump 15 is communicated with the lubricating oil groove 14. The input port of the oil return pump 16 is communicated with the first oil return groove 8 and the second oil return groove 9 simultaneously. An oil filter screen 7 is arranged between the input port of the high-pressure oil pump 15 and the lubricating oil groove 14, between the input port of the oil return pump 16 and the first oil return groove 8, and between the input port of the oil return pump 16 and the second oil return groove 9. The oil filter screen 7 can filter the lubricating oil sent back to the lubricating oil chamber and the lubricating oil sent into the high-pressure flow channel, so as to avoid that the impurities in the lubricating oil damage the engine body 1.

[0025] The output port of the high-pressure oil pump 15 is communicated with the high-pressure flow channel, and the lubricating oil is sent to each lubricating part of the engine body 1. The lubricating oil is sent to each lubricating part of the engine body 1 through the high-pressure flow channel, which belongs to the prior art. The specific structure and working principle are not described here.

[0026] In the embodiment, the engine body 1 is a turbocharged engine. The oil outlet 6 of the turbocharger 5 is communicated with the oil inlet hole 4, so that the lubricating oil lubricating the turbocharger 5 can flow back into the second oil passage 10.

[0027] The above merely describes preferred embodiments of the present application, and is not intended to limit the present application in other forms, and any skilled person in the art can modify or change the above disclosed technical content to equivalent embodiments with equivalent changes. However, any simple modification, equivalent change and modification made to the above embodiments without departing from the technical solution of the present application, and in accordance with the technical essence of the present application, still belong to the protection scope of the technical solution of the present application.

Claims

1. A lubricating structure of an engine including an engine main body (1), characterized by: The oil sump (3) is detachably installed at the bottom of the engine body (1), and the oil reservoir cover (2) is detachably installed at one side of the engine body (1) and forms an oil reservoir at the side of the engine body (1), the oil sump (3) is provided with an oil receiving part for receiving lubricating oil, the engine body (1) is provided with a high-pressure oil pump (15) and an oil return pump (16), the input ports of the high-pressure oil pump (15) and the oil return pump (16) are communicated with the oil receiving part, the output port of the oil return pump (16) is communicated with the oil reservoir, and the oil outlet hole of the high-pressure oil pump (15) is connected with the high-pressure flow channel on the engine body (1).

2. A lubricating structure of an engine according to claim 1, characterized by: The oil receiving part includes an oil return flow channel and a lubricating oil channel arranged on the top of the oil sump (3), the oil return flow channel and the lubricating oil channel are independently arranged, the input port of the oil return pump (16) is communicated with the oil return flow channel, and the input port of the high-pressure oil pump (15) is communicated with the lubricating flow channel.

3. A lubricating arrangement for an engine according to claim 2, characterised in that: The oil return flow channel includes a first oil channel (11) and a second oil channel (10), the first oil channel (11) and the second oil channel (10) are independently arranged, and the input port of the oil return pump (16) is communicated with the first oil channel (11) and the second oil channel (10) at the same time.

4. A lubricating arrangement for an engine according to claim 3, characterised in that: The oil receiving part further includes a receiving groove (13) arranged on the oil sump (3), the receiving groove (13) corresponds to the cylinder body of the engine body (1) one by one and is arranged directly below the corresponding cylinder body, and each receiving groove (13) is communicated with the first oil channel (11) through a communication hole (12).

5. The lubricating structure of an engine according to claim 2, characterized by: One end of the oil return flow channel is provided with an oil return groove, the input port of the oil return pump (16) is communicated with the oil return groove, one end of the lubricating oil channel is provided with a lubricating oil groove (14), the input port of the high-pressure oil pump (15) is communicated with the lubricating oil groove (14), and an oil filter screen (7) is arranged between the input port of the oil return pump (16) and the oil return groove and between the input port of the high-pressure oil pump (15) and the lubricating oil groove (14).

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