CN112128006B - Cylinder convenient to heat dissipation - Google Patents
Cylinder convenient to heat dissipation Download PDFInfo
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- CN112128006B CN112128006B CN202011089502.8A CN202011089502A CN112128006B CN 112128006 B CN112128006 B CN 112128006B CN 202011089502 A CN202011089502 A CN 202011089502A CN 112128006 B CN112128006 B CN 112128006B
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- cylinder
- block
- cylinder sleeve
- fixed
- crankcase
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F1/00—Cylinders; Cylinder heads
- F02F1/02—Cylinders; Cylinder heads having cooling means
- F02F1/04—Cylinders; Cylinder heads having cooling means for air cooling
- F02F1/06—Shape or arrangement of cooling fins; Finned cylinders
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F1/00—Cylinders; Cylinder heads
- F02F1/004—Cylinder liners
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F1/00—Cylinders; Cylinder heads
- F02F1/24—Cylinder heads
- F02F1/26—Cylinder heads having cooling means
- F02F1/28—Cylinder heads having cooling means for air cooling
- F02F1/30—Finned cylinder heads
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F1/00—Cylinders; Cylinder heads
- F02F1/24—Cylinder heads
- F02F1/42—Shape or arrangement of intake or exhaust channels in cylinder heads
- F02F1/4285—Shape or arrangement of intake or exhaust channels in cylinder heads of both intake and exhaust channel
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F11/00—Arrangements of sealings in combustion engines
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F7/00—Casings, e.g. crankcases or frames
- F02F7/0021—Construction
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
The invention discloses a cylinder convenient for heat dissipation, which comprises a lower crankcase, an upper crankcase, a cylinder sleeve and a cylinder cover, one side of the lower crankcase is provided with an oil pipe, the upper crankcase and the lower crankcase are fixed by bolts, the cylinder sleeve is positioned at the upper end of the upper crankcase, the cylinder sleeve and the upper crankcase are integrally formed, the cylinder cover is fixed with the cylinder sleeve through bolts, the invention is mainly characterized in that at least five radiating fins are respectively fixed on the outer wall of the cylinder sleeve and the outer wall of the cylinder cover, the five radiating fins are arranged at equal intervals, the inner wall of the cylinder sleeve is attached to the outer wall of the cylinder barrel, in the process of the motion of the piston block, the piston block and the inner wall of the cylinder barrel rub to generate heat which is transferred to the cylinder sleeve, the cylinder sleeve transfers the heat to the radiating fins, the heat at different positions is absorbed by the radiating fins at different positions, so that the radiating speed of the cylinder barrel is increased, and the radiating efficiency of the cylinder barrel is increased to a certain extent.
Description
Technical Field
The invention belongs to the technical field of engine cylinders, and particularly relates to a cylinder convenient for heat dissipation.
Background
When the engine works, high-pressure combustible mixed gas and burnt gas in the combustion chamber can more or less leak into a crankcase through a gap between the piston group and the cylinder, so that blow-by gas is generated; the blow-by gas is composed of unburned fuel gas, water vapor, waste gas and the like, which can dilute the engine oil, reduce the service performance of the engine oil and accelerate the oxidation and deterioration of the engine oil; the water and the air are condensed in the engine oil to form oil sludge and block an oil way; acid gases in the exhaust gas are mixed into the lubrication system, which can cause corrosion and accelerated wear of engine parts; the blowby gas still can make the pressure of crankcase too high and destroy the sealed of crankcase, makes the machine oil seepage run off, and at cylinder during operation, because of the piston block of cylinder can produce a large amount of heats with the friction between the cylinder at the during operation, untimely give off the heat can influence the life of engine, need carry out the heat dissipation to the cylinder and handle.
However, in the prior art, most of the cylinder heat dissipation modes are water cooling modes for dissipating heat of the cylinder, and the water cooling modes can cause local cooling or local overheating, so that the heat dissipation effect is poor.
Therefore, the air cylinder convenient for heat dissipation is provided to solve the problems in the prior art, the heat dissipation effect of the air cylinder is increased to a certain extent, and the loss of material cost caused by machine body scrapping is reduced.
Disclosure of Invention
The invention aims to provide a cylinder convenient for heat dissipation, and aims to solve the problems that the cylinder is mostly cooled by a water cooling mode in the prior art, and the water cooling mode can cause local cooling or local overheating, so that the heat dissipation effect is poor, and the cylinder cover is easy to break to cause machine body scrap and material cost loss due to complicated working procedures, complex structure and high cost during installation.
In order to achieve the purpose, the invention adopts the following technical scheme:
an air cylinder convenient for heat dissipation comprises a lower crankcase, an upper crankcase, a cylinder sleeve and a cylinder cover, wherein one side of the lower crankcase is provided with an oil pipe, the upper crankcase and the lower crankcase are fixed through bolts, the cylinder sleeve is positioned at the upper end of the upper crankcase, the cylinder sleeve and the upper crankcase are integrally formed, the cylinder cover is fixed with the cylinder sleeve through bolts, the cylinder sleeve is arranged inside the cylinder sleeve, a piston block is arranged inside the cylinder sleeve, the side wall of the cylinder sleeve and the side wall of the cylinder cover are respectively provided with a radiating fin, one side of the cylinder sleeve is provided with a return pipe, one end of the return pipe is communicated with the inside of the upper crankcase, the side wall of the cylinder sleeve is symmetrically provided with two connecting pipes, one end of each connecting pipe is communicated with the inside of the cylinder sleeve, one end of the cylinder cover is provided with two connecting blocks, and the connecting blocks are provided with vent holes, one side of connecting block is provided with the lug, be provided with first through-hole on the lug, first through-hole communicates with the one end of back flow, one side of lug is provided with first fixed block, the opposite side of lug is provided with the second fixed block, the confession has been seted up to the one end of cylinder cap the fixed recess of second fixed block, the second fixed block with the one end of cylinder cap is fixed, two holes of stepping down have been seted up to one side of lug.
Preferably, the cooling fins are at least five and are arranged at equal intervals, the cooling fins are respectively integrally formed with the cylinder sleeve and the cylinder cover, through holes for allowing one end of the return pipe to penetrate are formed in the cooling fins, and the cooling fins are fixedly connected with the return pipe.
Preferably, the other end of the connecting pipe is provided with a mounting block, and the mounting block is symmetrically provided with two mounting holes.
Preferably, the cover plate is installed at the upper end of the cylinder sleeve through a bolt, a sealing ring is arranged between the cylinder barrel and the cover plate, a notch for fixing the sealing ring is formed in one end of the cylinder barrel, and a third through hole for communicating the cylinder barrel is formed in the cover plate.
Preferably, the upper end of the cover plate is provided with four threaded blind holes for mounting the cylinder cover, and the four threaded blind holes are arranged at equal angles.
Preferably, the lower end of the cylinder barrel is integrally formed with a protrusion, the outer wall of the protrusion is provided with external threads, and the lower end of the cylinder barrel is provided with a screw hole for the protrusion to be screwed.
Preferably, the upper end of the cylinder sleeve is provided with three second through holes, and the three second through holes are respectively located at the edge of the upper end of the cylinder sleeve.
Preferably, a supporting plate is arranged on one side of the protruding block, the supporting plate is fixed to the upper end of the cylinder sleeve, and the first fixing block, the protruding block and the second fixing block are arranged in an aligned mode.
Compared with the prior art, the cylinder convenient for heat dissipation provided by the invention has the following advantages:
1. the cylinder is mainly characterized in that at least five radiating fins are fixed on the outer wall of a cylinder sleeve and the outer wall of a cylinder cover respectively, the five radiating fins are arranged at equal intervals, the inner wall of the cylinder sleeve is attached to the outer wall of the cylinder barrel, a piston block is arranged inside the cylinder barrel, the piston block and the inner wall of the cylinder barrel rub to generate heat in the moving process of the piston block, the heat is transferred to the cylinder sleeve, the cylinder sleeve transfers the heat to the radiating fins, the radiating fins at different positions absorb the heat at different positions, the radiating speed of the cylinder barrel is accelerated, and the radiating efficiency of the cylinder barrel is increased to a certain extent;
2. the cylinder cover is provided with two connecting blocks and a convex block at the upper end, the connecting blocks are provided with vent holes, one vent hole is used for air inlet, the other vent hole is used for air outlet, the convex block is provided with a first through hole, the first through hole is communicated with one end of the return pipe, and one side of the first through hole is provided with two abdicating holes, the abdicating holes are used for mounting accessories.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the cylinder head of the present invention;
FIG. 3 is a cross-sectional view of a cylinder liner of the present invention;
FIG. 4 is a schematic view of the cylinder of the present invention;
fig. 5 is a schematic view of the cover plate of the present invention.
In the figure: 1. a lower crankcase; 2. an upper crankcase; 3. an oil pipe; 4. a cylinder liner; 5. a cylinder cover; 6. a return pipe; 7. a heat sink; 8. mounting holes; 9. a connecting pipe; 10. mounting blocks; 11. a bump; 12. a first through hole; 13. a hole of abdication; 14. a support plate; 15. a first fixed block; 16. a second through hole; 17. connecting blocks; 18. a vent hole; 19. a second fixed block; 20. a cylinder barrel; 21. a cover plate; 22. a third through hole; 23. a protrusion; 24. a seal ring; 25. a piston block; 26. a notch; 27. and (4) blind threaded holes.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The specific embodiments described herein are merely illustrative of the invention and do not delimit the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides a cylinder convenient for heat dissipation as shown in figures 1-5, which comprises a lower crankcase 1, an upper crankcase 2, a cylinder sleeve 4 and a cylinder cover 5, wherein an oil pipe 3 is arranged on one side of the lower crankcase 1, the upper crankcase 2 and the lower crankcase 1 are fixed through bolts, the cylinder sleeve 4 is positioned at the upper end of the upper crankcase 2, the cylinder sleeve 4 and the upper crankcase 2 are integrally formed, the cylinder cover 5 is fixed with the cylinder sleeve 4 through bolts, a cylinder barrel 20 is arranged inside the cylinder barrel 4, a piston block 25 is arranged inside the cylinder barrel 20, the side wall of the cylinder sleeve 4 and the side wall of the cylinder cover 5 are respectively provided with a radiating fin 7, a return pipe 6 is arranged on one side of the cylinder sleeve 4, one end of the return pipe 6 is communicated with the inside of the upper crankcase 2, and the return pipe 6 is used for collecting waste oil generated by an engine;
the cooling fins 7 are at least five, the five cooling fins 7 are arranged at equal intervals, the cooling fins 7 are respectively integrally formed with the cylinder sleeve 4 and the cylinder cover 5, through holes for allowing one end of the return pipe 6 to penetrate are formed in the cooling fins 7, and the cooling fins 7 are fixedly connected with the return pipe 6, so that the cooling fins 7 are uniformly fixed at different positions of the cylinder sleeve 4 and the cylinder cover 5, and heat at different positions in the cylinder sleeve 4 is accelerated through different cooling fins;
two connecting pipes 9 are symmetrically arranged on the side wall of the cylinder sleeve 4, one end of each connecting pipe 9 is communicated with the inside of the cylinder barrel 20, the other end of each connecting pipe 9 is provided with a mounting block 10, and two mounting holes 8 are symmetrically arranged on the mounting blocks 10, so that the connecting pipes 9 can be conveniently connected and fixed;
two connecting blocks 17 are arranged at one end of the cylinder cover 5, vent holes 18 are formed in the connecting blocks 17, one vent hole 18 is used for air inlet, the other vent hole 18 is used for air outlet, a convex block 11 is arranged at one side of each connecting block 17, a first through hole 12 is formed in each convex block 11, each first through hole 12 is communicated with one end of the corresponding return pipe 6, a first fixing block 15 is arranged at one side of each convex block 11, a second fixing block 19 is arranged at the other side of each convex block 11, a groove for fixing the second fixing block 19 is formed in one end of the cylinder cover 5, the second fixing block 19 is fixed with one end of the cylinder cover 5, two abdicating holes 13 are formed in one side of each convex block 11, and the first fixing blocks 15, the second fixing blocks 19 and the abdicating holes 13 are used for installing and fixing accessories;
a supporting plate 14 is arranged on one side of the convex block 11, the supporting plate 14 is fixed with the upper end of the cylinder sleeve 4, and the first fixing block 15, the convex block 11 and the second fixing block 19 are arranged in an aligned mode so as to facilitate limiting during installation of accessories;
the upper end of the cylinder sleeve 4 is provided with a cover plate 21 through a bolt, a sealing ring 24 is arranged between the cylinder barrel 20 and the cover plate 21, one end of the cylinder barrel 20 is provided with a notch 26 for fixing the sealing ring 24, the cover plate 21 is provided with a third through hole 22 for communicating the cylinder barrel 20, the outer wall of the cylinder barrel 20 is attached to the inner wall of the cylinder sleeve 4, the heat of the cylinder barrel 20 is conveniently transmitted to the cylinder sleeve 4, and the heat is dissipated through the radiating fins 7 on the cylinder sleeve 4;
the upper end of the cover plate 21 is provided with four threaded blind holes 27 for mounting the cylinder cover 5, and the four threaded blind holes 27 are arranged at equal angles, so that the cylinder cover 5 can be conveniently sealed and fixed;
the lower end of the cylinder barrel 20 is integrally formed with a bulge 23, the outer wall of the bulge 23 is provided with external threads, the lower end of the cylinder sleeve 4 is provided with a screw hole for the threaded connection of the bulge 23, the cylinder barrel 20 is convenient to fix, and the displacement and the shaking of the cylinder barrel 20 are avoided while the piston block 25 moves;
the upper end of the cylinder sleeve 4 is provided with three second through holes 16, the three second through holes 16 are respectively positioned at the edge of the upper end of the cylinder sleeve 4, and the second through holes 16 are convenient for the connection and fixation of the cylinder and the engine.
The working principle is as follows: at least five radiating fins 7 are fixed on the outer wall of the cylinder sleeve 4 and the outer wall of the cylinder cover 5 respectively, the five radiating fins 7 are arranged at equal intervals, the inner wall of the cylinder sleeve 4 is attached to the outer wall of the cylinder barrel 20, a piston block 25 is arranged inside the cylinder barrel 20, in the moving process of the piston block 25, the piston block 25 and the inner wall of the cylinder barrel 20 generate heat through friction, the heat is transmitted to the cylinder sleeve 4, the cylinder sleeve 4 transmits the heat to the radiating fins 7, the radiating fins 7 at different positions absorb the heat at different positions, the radiating speed of the cylinder barrel 20 is accelerated, and the radiating efficiency of the cylinder barrel is increased to a certain extent;
in addition, the upper end of the cylinder cover 5 is provided with two connecting blocks 17 and a lug 11, the connecting blocks 17 are provided with vent holes 18, one vent hole 18 is used for air inlet, the other vent hole 18 is used for air outlet, the lug 11 is provided with a first through hole 12, the first through hole 12 is communicated with one end of the return pipe 6, one side of the first through hole 12 is provided with two abdicating holes 13, and the abdicating holes 13 are used for mounting accessories.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (8)
1. The utility model provides a cylinder convenient to heat dissipation, includes lower crankcase (1), goes up crankcase (2), cylinder liner (4) and cylinder cap (5), its characterized in that: an oil pipe (3) is arranged on one side of the lower crankcase (1), the upper crankcase (2) and the lower crankcase (1) are fixed through bolts, the cylinder sleeve (4) is located at the upper end of the upper crankcase (2), the cylinder sleeve (4) and the upper crankcase (2) are arranged in an integrated mode, the cylinder cover (5) is fixed with the cylinder sleeve (4) through bolts, a cylinder barrel (20) is arranged inside the cylinder sleeve (4), a piston block (25) is arranged inside the cylinder barrel (20), radiating fins (7) are respectively arranged on the side wall of the cylinder sleeve (4) and the side wall of the cylinder cover (5), a return pipe (6) is arranged on one side of the cylinder sleeve (4), one end of the return pipe (6) is communicated with the inside of the upper crankcase (2), and two connecting pipes (9) are symmetrically arranged on the side wall of the cylinder sleeve (4), the one end of connecting pipe (9) with the inside intercommunication of cylinder (20), the one end of cylinder cap (5) is provided with two connecting blocks (17), be provided with air vent (18) on connecting block (17), one side of connecting block (17) is provided with lug (11), be provided with first through-hole (12) on lug (11), first through-hole (12) and the one end intercommunication of back flow (6), one side of lug (11) is provided with first fixed block (15), the opposite side of lug (11) is provided with second fixed block (19), the confession has been seted up to the one end of cylinder cap (5) the fixed recess of second fixed block (19), second fixed block (19) with the one end of cylinder cap (5) is fixed, two hole (13) of stepping down have been seted up to one side of lug (11).
2. The cylinder for facilitating heat dissipation of claim 1, wherein: the cooling fin (7) is at least provided with five, and five the cooling fin (7) are the equidistance setting, cooling fin (7) respectively with cylinder liner (4) with cylinder cap (5) are integrated into one piece and set up, set up on cooling fin (7) and supply the through-hole that the one end of back flow (6) passed, cooling fin (7) with back flow (6) fixed connection.
3. The cylinder for facilitating heat dissipation of claim 1, wherein: the other end of the connecting pipe (9) is provided with an installation block (10), and two installation holes (8) are symmetrically formed in the installation block (10).
4. The cylinder for facilitating heat dissipation of claim 1, wherein: the upper end of cylinder liner (4) is installed apron (21) through the bolt, just cylinder (20) with be provided with between apron (21) sealing washer (24), the confession has been seted up to the one end of cylinder (20) breach (26) that the sealing washer (24) are fixed, seted up on apron (21) and supplied third through-hole (22) that cylinder (20) communicate.
5. The cylinder for facilitating heat dissipation of claim 4, wherein: four threaded blind holes (27) for installing the cylinder cover (5) are formed in the upper end of the cover plate (21), and the threaded blind holes (27) are arranged at equal angles.
6. The cylinder for facilitating heat dissipation of claim 5, wherein: the lower extreme integrated into one piece of cylinder (20) has arch (23), the outer wall of arch (23) is provided with the external screw thread, the lower extreme of cylinder liner (4) is seted up and is supplied protruding (23) spiro union's screw.
7. The cylinder for facilitating heat dissipation of claim 1, wherein: the upper end of the cylinder sleeve (4) is provided with three second through holes (16), and the three second through holes (16) are respectively positioned at the edge of the upper end of the cylinder sleeve (4).
8. The cylinder for facilitating heat dissipation of claim 1, wherein: one side of the convex block (11) is provided with a supporting plate (14), the supporting plate (14) is fixed with the upper end of the cylinder sleeve (4), and the first fixing block (15), the convex block (11) and the second fixing block (19) are arranged in an aligned mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011089502.8A CN112128006B (en) | 2020-10-13 | 2020-10-13 | Cylinder convenient to heat dissipation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011089502.8A CN112128006B (en) | 2020-10-13 | 2020-10-13 | Cylinder convenient to heat dissipation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112128006A CN112128006A (en) | 2020-12-25 |
| CN112128006B true CN112128006B (en) | 2022-05-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011089502.8A Active CN112128006B (en) | 2020-10-13 | 2020-10-13 | Cylinder convenient to heat dissipation |
Country Status (1)
| Country | Link |
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| CN (1) | CN112128006B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB750006A (en) * | 1953-02-26 | 1956-06-06 | Kelston Engineering Company Lt | Improvements relating to cylinders for reciprocating internal combustion engines |
| CN1313458A (en) * | 2000-03-14 | 2001-09-19 | 本田技研工业株式会社 | Hand four stroke engine |
| CN101205852A (en) * | 2006-12-22 | 2008-06-25 | 本田技研工业株式会社 | Carburetor mounting structure |
| CN102733922A (en) * | 2011-03-29 | 2012-10-17 | 本田技研工业株式会社 | Oil cooling motor |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013024099A (en) * | 2011-07-20 | 2013-02-04 | Yamaha Motor Co Ltd | Internal combustion engine and straddle-type vehicle equipped with the same |
| US9856817B2 (en) * | 2015-03-31 | 2018-01-02 | Harley-Davidson Motor Company Group, LLC | Bolt-on cylinder kit and method for increasing the displacement of an engine |
-
2020
- 2020-10-13 CN CN202011089502.8A patent/CN112128006B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB750006A (en) * | 1953-02-26 | 1956-06-06 | Kelston Engineering Company Lt | Improvements relating to cylinders for reciprocating internal combustion engines |
| CN1313458A (en) * | 2000-03-14 | 2001-09-19 | 本田技研工业株式会社 | Hand four stroke engine |
| CN101205852A (en) * | 2006-12-22 | 2008-06-25 | 本田技研工业株式会社 | Carburetor mounting structure |
| CN102733922A (en) * | 2011-03-29 | 2012-10-17 | 本田技研工业株式会社 | Oil cooling motor |
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| Publication number | Publication date |
|---|---|
| CN112128006A (en) | 2020-12-25 |
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