Cylinder body, engine and vehicle

Abstract

The utility model belongs to the technical field of engines, and particularly relates to a cylinder body, an engine and a vehicle. The cylinder body comprises at least one first oil return channel, and the first oil return channel is suitable for guiding engine oil of the cylinder cover to flow back; a confluence groove is formed in one end of the first oil return channel and suitable for being communicated with a plurality of oil return channels of the air cylinder cover. The first oil return channels can be in butt joint with the multiple oil return channels of the cylinder cover at the same time through the confluence grooves, the number of the first oil return channels in butt joint with the cylinder cover can be reduced, the space occupied by the first oil return channels on the cylinder body is reduced, the cylinder body is simple in structure and convenient to manufacture and machine, and optimization of the space structure of the cylinder body is facilitated.

Description

Technical Field

[0001] The utility model belongs to the technical field of engines, and in particular relates to a cylinder body, an engine and a vehicle. Background Art

[0002] The oil passage of the cylinder head can transport lubricating oil to the moving parts on the cylinder head, and the lubricating oil then flows back to the oil pan through the oil return channel.

[0003] In the related art, a lubrication chamber is provided in the engine cylinder head to lubricate moving parts installed in the cylinder head, such as a camshaft, etc. One end of the oil return channel is used to communicate with the lubrication chamber of the engine cylinder head, and the other end of the oil return channel is used to communicate with the oil pan of the engine. The inner diameter of the oil return channel gradually increases toward the oil pan to increase the amount of oil return, but at the same time it will also affect the spatial structure optimization design of the cylinder body and occupy a larger space in the cylinder body. Utility Model Content

[0004] The technical problem to be solved by the utility model is: to provide a cylinder body, an engine and a vehicle in view of the problem that the existing oil return channel occupies a large space of the cylinder body.

[0005] To solve the above technical problems, on the one hand, an embodiment of the utility model provides a cylinder block, comprising at least one first oil return channel, wherein the first oil return channel is suitable for guiding the oil of the cylinder head to flow back into the oil pan;

[0006] A confluence groove is provided at one end of the first oil return passage, and the confluence groove is suitable for connecting multiple oil return passages of the cylinder head.

[0007] Optionally, the first oil return channel includes a first channel, a second channel and a third channel connected in sequence, the confluence groove is connected to an end of the first channel away from the second channel, and an end of the third channel away from the second channel is suitable for connecting to the oil pan.

[0008] Optionally, a cross-sectional area of ​​the first channel gradually decreases in a direction away from the confluence groove.

[0009] Optionally, a cross-sectional area of ​​the second channel gradually increases in a direction away from the confluence groove.

[0010] Optionally, a cross-sectional area of ​​the third channel gradually decreases in a direction away from the confluence groove.

[0011] Optionally, it also includes a second oil return channel, which is arranged at an axial interval with the first oil return channel along the engine main shaft; one end of the second oil return channel is suitable for connecting to the oil return channel of a cylinder head, and the other end of the second oil return channel is suitable for connecting to the oil pan.

[0012] Optionally, a plurality of the second oil return passages are provided, and the plurality of the second oil return passages are suitable for being provided in a one-to-one correspondence with the oil return passages of a plurality of cylinder heads.

[0013] Optionally, the second oil return channel includes a fourth channel, a fifth channel and a sixth channel connected in sequence, the end of the fourth channel away from the fifth channel is suitable for connecting to the oil return channel of the cylinder head, and the end of the sixth channel away from the fifth channel is suitable for connecting to the oil pan.

[0014] Optionally, the cross-sectional area of ​​the fourth channel gradually decreases in a direction approaching the sixth channel.

[0015] Optionally, the cross-sectional area of ​​the fifth channel gradually increases in a direction approaching the sixth channel.

[0016] Optionally, a cross-sectional area of ​​the sixth channel gradually decreases in a direction away from the fifth channel.

[0017] On the other hand, an embodiment of the present invention provides an engine, comprising the cylinder block as described above.

[0018] Optionally, an oil pump is also included, and a main oil channel is provided in the engine body / cylinder body. The oil inlet end of the oil pump is suitable for connecting to the oil pan, and the oil outlet end of the oil pump is connected to the main oil channel, and the main oil channel is used to supply oil to the main shaft and the cylinder head.

[0019] Optionally, a first oil channel branch is connected to the main oil channel, and the first oil channel branch is used to communicate with the lubrication chamber of the cylinder head.

[0020] Optionally, the engine body / cylinder block is provided with a plurality of second oil channel branches and a plurality of main bearing holes, the plurality of second oil channel branches and the plurality of main bearing holes are arranged in one-to-one correspondence, the plurality of second oil channel branches are arranged at intervals along the main oil channel, and each second oil channel branch connects the main oil channel and the corresponding main bearing hole.

[0021] Optionally, a tensioner is further included, and a connecting oil channel is provided in the engine body / cylinder body, one end of the connecting oil channel is connected to one of the main bearing holes, and the other end of the connecting oil channel is connected to the tensioner.

[0022] Optionally, the engine body / cylinder body is provided with a secondary oil passage, the secondary oil passage being connected to the main oil passage;

[0023] A plurality of nozzles are arranged on the secondary oil passage, and the plurality of nozzles are arranged at intervals on the secondary oil passage, and the nozzles are used to spray engine oil to the piston.

[0024] Optionally, a conducting oil passage is provided between the auxiliary oil passage and the main oil passage; a solenoid valve is provided on the conducting oil passage, and the solenoid valve is used to control the on-off of the conducting oil passage so as to open or close the nozzle;

[0025] Optionally, a third oil channel branch is provided on the main oil channel, a fourth oil channel branch is provided on the secondary oil channel, the conducting oil channel connects the third oil channel branch and the fourth oil channel branch, and the main oil channel connects the secondary oil channel through the third oil channel branch, the conducting oil channel and the fourth oil channel branch.

[0026] Optionally, a feedback oil passage is provided in the engine body / cylinder block, and the feedback oil passage is connected to the auxiliary oil passage and the oil pump.

[0027] On the other hand, an embodiment of the present invention provides an engine, including the engine as described above.

[0028] On the other hand, an embodiment of the present invention provides a vehicle, comprising the engine as described above.

[0029] In the cylinder body provided by the embodiment of the utility model, the first oil return channel can simultaneously connect to multiple oil return channels of the cylinder head through the confluence groove, which can reduce the number of first oil return channels connected to the cylinder head and reduce the space occupied by the first oil return channels on the cylinder body, so that the structure of the cylinder body is simple and easy to manufacture and process, which is beneficial to the optimization of the spatial structure of the cylinder body. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of a lubrication system provided by an embodiment of the utility model;

[0031] Figure 2 It is a schematic diagram of a cylinder provided by an embodiment of the utility model;

[0032] Figure 3 It is a schematic diagram of an oil circuit in a cylinder provided by an embodiment of the utility model.

[0033] The reference numerals in the specification are as follows:

[0034] 1. First oil return channel; 11. Converging groove; 12. First channel; 13. Second channel; 14. Third channel;

[0035] 2. Second oil return channel; 21. Fourth channel; 22. Fifth channel; 23. Sixth channel;

[0036] 31. Oil pump; 32. Main oil channel; 321. Pressure sensor; 322. First oil channel branch; 323. Second oil channel branch; 324. Third oil channel branch; 33. Main bearing hole; 34. Connecting oil channel; 35. Auxiliary oil channel; 351. Nozzle; 352. Fourth oil channel branch; 36. Feedback oil channel; 37. Conducting oil channel; 38. Oil filter; 39. Oil cooler;

[0037] 4. Tensioner;

[0038] 5. Rear oil seal return oil circuit;

[0039] 6. Oil pan. DETAILED DESCRIPTION

[0040] In order to make the technical problems, technical solutions and beneficial effects solved by the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0041] like Figures 1 to 3 As shown, a cylinder block provided by an embodiment of the utility model includes at least one first oil return channel 1, which is arranged on the cylinder block of the engine, and is suitable for guiding the oil of the cylinder head to flow back to the oil pan 6. A confluence groove is arranged at one end of the first oil return channel 1, and the confluence groove is suitable for connecting multiple oil return channels of the cylinder head. The confluence groove can cover the openings of multiple oil return channels of the cylinder head, so that the oil of multiple oil return channels of the cylinder head can flow back to the oil pan 6 smoothly through the first oil return channel 1. The return oil of the cylinder head can flow directly to the oil pan 6 through the first oil return channel 1, reducing the amount of oil thrown off the main shaft and avoiding the problem of insufficient oil flow due to small amount of return oil.

[0042] In this embodiment, the first oil return channel 1 can simultaneously connect to multiple oil return channels of the cylinder head through the confluence groove, which can reduce the number of first oil return channels 1 connected to the cylinder head and reduce the space occupied by the first oil return channel 1 on the cylinder body, making the structure of the cylinder body simple and easy to manufacture and process, which is beneficial to the optimization of the spatial structure of the cylinder body.

[0043] In one embodiment, each first oil return channel 1 is connected to two oil return channels of the cylinder head, and a plurality of first oil return channels 1 are provided. The plurality of first oil return channels 1 guide the oil in all the oil return channels to the oil pan 6, and the number of the first oil return channels 1 is half the number of the oil return channels of the cylinder head, thereby reducing the space occupied by the first oil return channels 1. Preferably, the first oil return channel 1 is provided on the intake side of the cylinder body, and there are more components installed on the intake side. By providing a plurality of first oil return channels 1, it can be ensured that most components are installed near the first oil return channel 1.

[0044] In one embodiment, if Figure 2 As shown, the first oil return channel 1 includes a first channel 12, a second channel 13 and a third channel 14 connected in sequence, the first channel 12 is connected between the confluence groove 11 and the second channel 13, the confluence groove 11 is located at the end of the first channel 12 away from the second channel 13, and the end of the third channel 14 away from the second channel 13 is suitable for connecting to the oil pan. The first oil return channel 1 is arranged on the cylinder block, and the confluence groove converges the oil of multiple oil return channels of the cylinder head to the first channel 12. By setting the first channel 12, the second channel 13 and the third channel 14 connected in sequence, the oil in the confluence groove 11 can be guided to the oil pan 6. The confluence groove 11 is connected to the cylinder head, and the confluence groove 11 can cover the openings of multiple oil return channels of the cylinder head, so that the oil of multiple oil return channels enters the confluence groove without splashing.

[0045] Among them, the confluence groove 11 is a funnel structure, the first channel 12 is connected to one side of the confluence groove 11, and the depth of the confluence groove 11 gradually decreases in the direction away from the first channel 12. The engine oil in the cylinder head can enter the first channel 12 along the confluence groove without liquid accumulation.

[0046] In one embodiment, the cross-sectional area of ​​the first channel 12 gradually decreases in the direction away from the confluence groove 11, so that the first channel 12 forms a tapered structure. In this embodiment, the first oil return channel 1 is arranged in the vertical direction, and the cross-sectional area here is the area of ​​the cross section of the first channel 12 in the horizontal direction. The cross-sectional area of ​​the upper part of the first channel 12 is greater than the cross-sectional area of ​​the lower part of the first channel 12. The cross-sectional area of ​​the lower part of the first channel 12 is determined according to the minimum oil return area. The upper part of the first channel 12 is connected to the confluence groove 11, thereby forming a gradually shrinking structure. When designing the mold, the mold is ejected from the top of the first oil return channel 1. The mold has short inlay pins and high strength, which can extend the service life of the mold.

[0047] In one embodiment, the cross-sectional area of ​​the second channel 13 gradually increases in the direction away from the confluence groove 11, so that the first channel 12 forms a gradually expanding structure. Among them, the cross-sectional area of ​​the upper part of the second channel 13 is smaller than the cross-sectional area of ​​the lower part of the second channel 13. The cross-sectional area of ​​the upper part of the second channel 13 is determined according to the minimum oil return area, and gradually expands from the size of the second channel 13 downward, which is conducive to oil return and can also reduce the weight of the cylinder body to a certain extent.

[0048] In one embodiment, the cross-sectional area of ​​the third channel 14 gradually decreases in a direction away from the confluence groove 11 , so that the third channel 14 forms a tapered structure, which has a convergence effect on the oil and prevents the oil from splashing when it flows out.

[0049] As an example, Figure 2As shown, the first oil return channel 1 includes a first channel 12, a second channel 13 and a third channel 14. The first channel 12 is a tapered structure, the second channel 13 is a gradually expanding structure, the third channel 14 is a tapered structure, and the cross-sectional size of the third channel 14 is larger than the minimum oil return area. In this way, the first oil return channel 1 forms a structure with a smaller middle size and larger sizes at the top and bottom. When designing the mold, it can be demolded from the top and bottom together. The mold pin is short and has high strength, which has little impact on the mold, has a long mold life, and has a good cooling effect during casting.

[0050] In one embodiment, if Figure 1 , Figure 2 As shown, the cylinder block further includes a second oil return channel 2, and the second oil return channel 2 and the first oil return channel 1 are arranged at intervals along the axial direction of the engine main shaft. One end of the second oil return channel is suitable for connecting to the oil return channel of the cylinder head, and the other end of the second oil return channel is suitable for connecting to the oil pan 6. The second oil return channel 2 can be connected to an oil return channel of the cylinder head, thereby guiding the oil to flow back to the oil pan 6.

[0051] In one embodiment, a plurality of second oil return passages 2 are provided, and the plurality of second oil return passages 2 are suitable for being provided in one-to-one correspondence with the oil return passages of the plurality of cylinder heads.

[0052] As an example, the cylinder block includes at least one first oil return channel 1 and multiple second oil return channels 2, which are arranged at intervals along the axial direction of the engine main shaft, and the oil in all the oil return channels of the cylinder head is guided to the oil pan 6 through at least one first oil return channel 1 and multiple second oil return channels 2. The return oil of the cylinder head can flow directly to the oil pan 6 through the first oil return channel 1 and the second oil return channel 2, reducing the amount of oil thrown off the main shaft and avoiding the problem of insufficient oil flow due to small amount of return oil.

[0053] The number of the first oil return channel 1 and the second oil return channel 2 needs to be determined according to the structure and space design of the cylinder block, while ensuring oil return without affecting the arrangement of other components.

[0054] In a specific embodiment, the cylinder head has five oil return passages, one first oil return passage 1 is provided, which can connect to the oil of two oil return passages, and three second oil return passages 2 are provided, and each second oil return passage 2 can connect to one oil return passage.

[0055] In one embodiment, if Figure 2As shown, the second oil return channel 2 includes a fourth channel 21, a fifth channel 22 and a sixth channel 23 which are connected in sequence. The end of the fourth channel 21 away from the fifth channel 22 is suitable for connecting to the oil return channel of the cylinder head, and the fifth channel 22 is connected between the fourth channel 21 and the sixth channel 23. The end of the sixth channel 23 away from the fifth channel 22 is suitable for connecting to the oil pan. The fourth channel 21 is docked with the cylinder head, and the end of the fourth channel 21 away from the fifth channel 22 can cover an oil return channel of the cylinder head, so that the engine oil can smoothly enter the fourth channel 21 without splashing. The sixth channel 23 is arranged close to the oil pan 6, and the engine oil flows into the oil pan 6 after passing through the fourth channel 21, the fifth channel 22 and the sixth channel 23 in sequence.

[0056] In one embodiment, the cross-sectional area of ​​the fourth channel 21 gradually decreases in the direction close to the sixth channel 23, so that the fourth channel 21 forms a tapered structure. In this embodiment, the second oil return channel 2 is arranged in the vertical direction, and the cross-sectional area here is the area of ​​the cross section in the horizontal direction. The cross-sectional area of ​​the upper part of the fourth channel 21 is greater than the cross-sectional area of ​​the lower part of the fourth channel 21. The cross-sectional area of ​​the lower part of the fourth channel 21 is determined according to the minimum oil return area. The upper part of the fourth channel 21 is connected to the oil return channel of the cylinder head, thereby forming a gradually shrinking structure. When designing the mold, the mold is ejected from the top, the mold pin is short, the strength is high, the impact on the mold life is reduced, and the mold life is long.

[0057] In one embodiment, the cross-sectional area of ​​the fifth channel 22 gradually increases toward the direction close to the sixth channel 23, so that the fifth channel 22 forms a gradually expanding structure. Among them, the cross-sectional area of ​​the upper part of the fifth channel 22 is smaller than the cross-sectional area of ​​the lower part of the fifth channel 22. The cross-sectional area of ​​the upper part of the fifth channel 22 is determined according to the minimum oil return area, and gradually expands downward from the size of the fifth channel 22, which is beneficial to oil return and can also reduce the weight of the cylinder body to a certain extent.

[0058] In one embodiment, the cross-sectional area of ​​the sixth channel 23 gradually decreases in the direction away from the fifth channel 22, so that the sixth channel 23 forms a tapered structure, the cross-sectional area of ​​the sixth channel 23 is larger than the minimum oil return area, and the size change of the sixth channel 23 is small when it is tapered. The sixth channel 23 has a certain convergence effect on the oil, preventing the oil from splashing when it flows out.

[0059] As an example, Figure 2 As shown, the second oil return channel 2 includes a fourth channel 21, a fifth channel 22 and a sixth channel 23, the fourth channel 21 is a tapered structure, the fifth channel 22 is a gradually expanding structure, and the sixth channel 23 is a tapered structure. In this way, the second oil return channel 2 forms a structure with a small middle size and large sizes at the top and bottom, and can be demolded from the top and bottom together when designing the mold. The mold has a short pin and high strength, the mold has a long life, and the cooling effect is good during casting.

[0060] In one embodiment, the cylinder body further includes a rear oil seal return oil passage 5, through which the oil in the space between the rear oil seal and the cylinder body can flow into the oil pan 6, thereby preventing the excess oil from affecting the sealing effect of the rear oil seal.

[0061] On the other hand, the embodiment of the utility model provides an engine, comprising the cylinder block of the above embodiment. The first oil return channel 1 on the cylinder block can guide the return oil of the engine cylinder head to the oil pan 6 of the engine.

[0062] In one embodiment, if Figure 1 , Figure 3 As shown, the engine also includes an oil pump 31. A main oil passage 32 is provided in the engine body / cylinder. The oil inlet end of the oil pump 31 is suitable for connecting to the oil pan 6. The oil outlet end of the oil pump 31 is connected to the main oil passage 32. The oil pump 31 applies pressure so that the oil in the oil pan 6 of the engine flows into the main oil passage 32. The main oil passage 32 is used to supply oil to the main shaft and the cylinder head. The main oil passage 32 can supply oil to the main shaft to lubricate the main bearing and connecting rod bearing. The main oil passage 32 can supply oil to the cylinder head. After the cylinder head is lubricated, the oil flows back to the oil pan 6 from the first oil return passage 1 and the second oil return passage 2 to form an oil circuit circulation in the engine.

[0063] In one embodiment, if Figure 3 As shown, a pressure sensor 321 is provided on the main oil channel 32. The pressure sensor 321 is used to detect the oil pressure in the main oil channel 32. The oil pressure can be monitored in real time through the pressure sensor 321, and the oil pressure at the oil outlet of the oil pump 31 can be adjusted in real time according to the pressure feedback from the pressure sensor 321.

[0064] In one embodiment, if Figure 3 As shown, the main oil passage 32 is connected to a first oil passage branch 322, and the first oil passage branch 322 is used to connect to the lubrication chamber of the cylinder head for oil supply. The first oil passage branch 322 is arranged above the main oil passage 32, and the main oil passage 32 flows to the cylinder head through the first oil passage branch 322, and the engine oil flows to the first oil return channel 1 and the second oil return channel 2 through the oil return channel of the cylinder head, and finally flows to the oil pan 6. In this embodiment, the main oil passage 32 and the lubrication chamber of the cylinder head are connected through the first oil passage branch 322, and the oil supply to the cylinder head is realized.

[0065] In one embodiment, if Figure 1 , Figure 3 As shown, a plurality of second oil channel branches 323 and a plurality of main bearing holes 33 are provided in the engine body / cylinder body, and the plurality of second oil channel branches 323 and the plurality of main bearing holes 33 are arranged in one-to-one correspondence, and the plurality of second oil channel branches 323 are arranged at intervals along the main oil channel 32, and each second oil channel branch 323 connects the main oil channel 32 and the corresponding main bearing hole 33.

[0066] The main bearing holes 33 are arranged at the main shaft and connecting rod of the engine. Multiple second oil channel branches 323 correspond to multiple main bearing holes 33 one by one. The main oil channel 32 is connected to the main bearing holes 33 through the first oil channel branch 322 to supply oil lubrication to the main bearing bearings and connecting rod bearings to reduce the wear of the main bearing bearings and connecting rod bearings.

[0067] The main bearing hole 33 is arc-shaped, and the number of the main bearing holes 33 and the number of the second oil channel branches 323 are determined according to the number of the engine connecting rods.

[0068] In one embodiment, if Figure 3 As shown, the engine also includes a tensioner 4, and a connecting oil passage 34 is provided in the engine body / cylinder body, one end of the connecting oil passage 34 is connected to one of the main bearing holes 33, and the other end of the connecting oil passage 34 is used to connect to the tensioner 4.

[0069] The connecting oil passage 34 connects the main bearing hole 33 and the tensioner 4, and one of the main bearing holes 33 is used as a part of the oil circuit of the tensioner 4. In addition to providing lubrication for the main shaft, the main bearing hole 33 can also supply oil to the tensioner 4 to achieve lubrication of the tensioner 4. The tensioner 4 does not need to be provided with a separate oil circuit, which greatly simplifies the structure of the tensioner 4 oil circuit, reduces the length of the tensioner 4 oil circuit, can reduce processing costs, reduce weight, and save the internal space of the automobile engine cylinder block.

[0070] In one embodiment, if Figure 1 , Figure 3 As shown, the engine body / cylinder is provided with a secondary oil passage 35, the secondary oil passage 35 is connected to the main oil passage 32, and a plurality of nozzles 351 are provided on the secondary oil passage 35, and the plurality of nozzles 351 are arranged at intervals on the secondary oil passage 35, and the nozzles 351 are used to spray oil to the piston. Preferably, the plurality of nozzles 351 are evenly spaced along the secondary oil passage 35, and generally at high speed, the nozzles will spray oil.

[0071] The engine oil in the main oil channel 32 can flow into the auxiliary oil channel 35, and then be sprayed onto the piston through the nozzle 351 on the auxiliary oil channel 35, thereby lubricating and cooling the piston, reducing the wear of the piston, lowering the temperature of the piston, and avoiding damage to the piston caused by excessive temperature.

[0072] In one embodiment, the main oil passage 32 and the auxiliary oil passage 35 are arranged parallel to each other, and the auxiliary oil passage 35 is located below the main oil passage 32 .

[0073] In one embodiment, if Figure 3As shown, a feedback oil passage 36 is provided in the engine body / cylinder body, and the feedback oil passage 36 connects the auxiliary oil passage 35 and the oil pump 31 . The oil in the auxiliary oil passage 35 can be guided back to the oil pump 31 through the feedback oil passage 36 .

[0074] Specifically, the auxiliary oil passage 35 has two sections, namely the first oil passage and the second oil passage. The solenoid valve is arranged at the connection between the first oil passage and the second oil passage. The feedback oil passage 36 connects the first oil passage and the oil pump 31. A plurality of nozzles 351 are arranged on the second oil passage.

[0075] When the solenoid valve controls the multiple nozzles 351 to be in an open state, the oil in the main oil passage 32 flows to the auxiliary oil passage 35, a portion of which is sprayed to the piston through the nozzle 351, and the excess oil returns to the oil pump 31 through the first section of the oil passage and the feedback oil passage 36. When the solenoid valve controls the multiple nozzles 351 to be in a closed state, the oil flowing from the main oil passage 32 to the auxiliary oil passage 35 cannot enter the second section of the oil passage, and here, the oil in the auxiliary oil passage 35 returns to the oil pump 31 through the feedback oil passage 36.

[0076] In one embodiment, if Figure 3 As shown, a conducting oil passage 37 is provided between the auxiliary oil passage 35 and the main oil passage 32 . The main oil passage 32 and the auxiliary oil passage 35 are connected via the conducting oil passage 37 . The oil in the main oil passage 32 can enter the auxiliary oil passage 35 via the conducting oil passage 37 .

[0077] A third oil channel branch 324 is provided on the main oil channel 32, and a fourth oil channel branch 352 is provided on the auxiliary oil channel 35. The third oil channel branch 324 and the fourth oil channel branch 352 are parallel to each other. The conducting oil channel 37 connects one end of the third oil channel branch 324 away from the main oil channel 32 and one end of the fourth oil channel branch 352 close to the auxiliary oil channel 35, so that the conducting oil channel 37 is inclined relative to the main oil channel 32 and the auxiliary oil channel 35.

[0078] The conducting oil passage 37 is provided with a solenoid valve, which is used to control the on-off of the conducting oil passage 37 so that the nozzle 351 is opened or closed, wherein the oil in the main oil passage 32 enters the third oil passage branch 324. By arranging the solenoid valve on the conducting oil passage 37, it is possible to control whether the oil flows into the second section of the oil passage, so that the oil enters the auxiliary oil passage 35 through the conducting oil passage 37 and the fourth oil passage branch 352, so as to realize the control of opening and closing of multiple nozzles 351. When the nozzle 351 is in the open state, the oil can be sprayed to the piston of the engine for lubrication and cooling. When the nozzle 351 is in the closed state, the oil spraying stops.

[0079] In one embodiment, if Figure 1 , Figure 3As shown, the engine further includes an oil filter 38 and an oil cooler 39 , which are connected in sequence between the oil pump 31 and the main oil gallery 32 .

[0080] Wherein, the oil filter 38 is used to filter out impurities, wear debris, sludge and moisture in the oil, so that the oil delivered to each lubricating part is clean. The oil cooler 39 is used to cool the oil and keep the oil temperature within the normal working range.

[0081] The oil pan 6 can be used to store engine oil. The oil pump 31 draws a certain amount of engine oil from the oil pan 6. After being pressurized by the oil pump 31, the oil passes through the oil filter 38 and the oil cooler 39 and is sent to the main oil gallery 32. The oil is then sent to the main shaft, the tensioner 4 and the cylinder head through the main oil gallery 32 for lubrication.

[0082] On the other hand, an embodiment of the present invention provides a vehicle, comprising the engine of the above embodiment.

[0083] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A cylinder body, characterized in that: comprising at least one first oil return passage, wherein the first oil return passage is adapted to guide the oil return of the cylinder head; A confluence groove is provided at one end of the first oil return passage, and the confluence groove is suitable for connecting multiple oil return passages of the cylinder head.

2. The cylinder body according to claim 1, characterized in that: The first oil return channel includes a first channel, a second channel and a third channel connected in sequence, the confluence groove is connected to an end of the first channel away from the second channel, and an end of the third channel away from the second channel is suitable for connecting to the oil pan.

3. The cylinder body according to claim 2, characterized in that: The cross-sectional area of ​​the first channel gradually decreases in a direction away from the confluence groove.

4. The cylinder body according to claim 2 or 3, characterized in that: The cross-sectional area of ​​the second channel gradually increases in a direction away from the confluence groove.

5. The cylinder body according to claim 2 or 3, characterized in that: The cross-sectional area of ​​the third channel gradually decreases in a direction away from the confluence groove.

6. The cylinder body according to claim 1, characterized in that: It also includes a second oil return channel, which is spaced apart from the first oil return channel along the axial direction of the engine main shaft; one end of the second oil return channel is suitable for connecting to the oil return channel of a cylinder head, and the other end of the second oil return channel is suitable for connecting to the oil pan.

7. The cylinder body according to claim 6, characterized in that A plurality of the second oil return passages are provided, and the plurality of the second oil return passages are suitable for being provided in one-to-one correspondence with the oil return passages of the plurality of cylinder heads.

8. The cylinder body according to claim 6, characterized in that: The second oil return passage comprises a fourth passage, a fifth passage and a sixth passage connected in sequence, the end of the fourth passage away from the fifth passage is suitable for connecting to the oil return passage of the cylinder head, and the end of the sixth passage away from the fifth passage is suitable for connecting to the oil pan.

9. The cylinder body according to claim 8, characterized in that The cross-sectional area of ​​the fourth channel gradually decreases in a direction approaching the sixth channel.

10. The cylinder body according to claim 8 or 9, characterized in that: The cross-sectional area of ​​the fifth channel gradually increases in a direction approaching the sixth channel.

11. The cylinder body according to claim 8 or 9, characterized in that: The cross-sectional area of ​​the sixth channel gradually decreases in a direction away from the fifth channel.

12. An engine, characterized in that: Comprising the cylinder body according to any one of claims 1-11.

13. The engine according to claim 12, characterized in that It also includes an oil pump. A main oil channel is provided in the engine body / cylinder body. The oil inlet end of the oil pump is suitable for connecting to the oil pan. The oil outlet end of the oil pump is connected to the main oil channel. The main oil channel is used to supply oil to the main shaft and the cylinder head.

14. The engine according to claim 13, characterized in that The main oil channel is connected to a first oil channel branch, and the first oil channel branch is used to communicate with the lubrication cavity of the cylinder head.

15. The engine according to claim 13, characterized in that A plurality of second oil channel branches and a plurality of main bearing holes are provided in the engine body / cylinder body, and the plurality of second oil channel branches and the plurality of main bearing holes are arranged in one-to-one correspondence, and the plurality of second oil channel branches are arranged at intervals along the main oil channel, and each second oil channel branch connects the main oil channel and the corresponding main bearing hole.

16. The engine according to claim 15, characterized in that It also includes a tensioner. A connecting oil channel is provided in the engine body / cylinder body of the engine. One end of the connecting oil channel is connected to one of the main bearing holes, and the other end of the connecting oil channel is connected to the tensioner.

17. The engine according to claim 13, characterized in that A secondary oil passage is provided in the engine body / cylinder body, and the secondary oil passage is connected to the main oil passage; A plurality of nozzles are arranged on the secondary oil passage, and the plurality of nozzles are arranged at intervals on the secondary oil passage, and the nozzles are used to spray engine oil to the piston.

18. The engine according to claim 17, characterized in that A conducting oil passage is arranged between the auxiliary oil passage and the main oil passage; a solenoid valve is arranged on the conducting oil passage, and the solenoid valve is used to control the on-off of the conducting oil passage so as to open or close the nozzle.

19. The engine according to claim 18, characterized in that The main oil passage is provided with a third oil passage branch, the auxiliary oil passage is provided with a fourth oil passage branch, the conducting oil passage connects the third oil passage branch and the fourth oil passage branch, and the main oil passage is connected to the auxiliary oil passage through the third oil passage branch, the conducting oil passage and the fourth oil passage branch.

20. The engine of claim 17, wherein: A feedback oil passage is provided in the engine body / cylinder body of the engine, and the feedback oil passage is connected with the auxiliary oil passage and the oil pump.

21. A vehicle, characterized in that: Comprising the engine described in any one of claims 12-20.

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