CN114542233B - Low-flow-resistance engine cylinder body lubricating oil duct arrangement structure - Google Patents
Low-flow-resistance engine cylinder body lubricating oil duct arrangement structure Download PDFInfo
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- CN114542233B CN114542233B CN202210155383.4A CN202210155383A CN114542233B CN 114542233 B CN114542233 B CN 114542233B CN 202210155383 A CN202210155383 A CN 202210155383A CN 114542233 B CN114542233 B CN 114542233B
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- Prior art keywords
- oil
- oil duct
- cylinder body
- duct
- cooling nozzle
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- 239000010687 lubricating oil Substances 0.000 title claims abstract description 71
- 239000003921 oil Substances 0.000 claims abstract description 204
- 238000001816 cooling Methods 0.000 claims abstract description 62
- 238000005461 lubrication Methods 0.000 claims abstract description 35
- 230000001050 lubricating effect Effects 0.000 claims abstract description 10
- 239000010705 motor oil Substances 0.000 claims description 23
- 238000004891 communication Methods 0.000 claims description 6
- 238000003754 machining Methods 0.000 claims description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
- F01M11/02—Arrangements of lubricant conduits
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P3/00—Liquid cooling
- F01P3/06—Arrangements for cooling pistons
- F01P3/08—Cooling of piston exterior only, e.g. by jets
-
- 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
- F02F1/18—Other cylinders
- F02F1/20—Other cylinders characterised by constructional features providing for lubrication
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Lubrication Of Internal Combustion Engines (AREA)
Abstract
The invention discloses a low-flow-resistance engine cylinder body lubricating oil duct arrangement structure, which comprises a cylinder body main oil duct arranged on the exhaust side of a cylinder body and a piston cooling nozzle lubricating oil duct arranged on the air inlet side of the cylinder body, wherein the lengths of the cylinder body main oil duct and the piston cooling nozzle lubricating oil duct are along the front-back direction; the engine also comprises an exhaust side inclined oil duct, an air inlet side inclined oil duct, an upper cylinder cover communicating oil duct and a plurality of piston cooling nozzle lubricating auxiliary oil ducts; the upper end of the exhaust side inclined oil duct is communicated with the main oil duct of the cylinder body, and the lower end of the exhaust side inclined oil duct can be communicated with an oil cooler and an oil filter module; the upper end of the air inlet side inclined oil duct is communicated with the lubricating oil duct of the piston cooling nozzle, and the lower end of the air inlet side inclined oil duct can be communicated with the oil cooler and the oil filter module. The invention can reduce the pressure loss of the cylinder body lubrication oil duct circuit, reduce the power consumption of the oil pump and improve the efficiency of the engine.
Description
Technical Field
The invention relates to an engine, in particular to a low-flow-resistance engine cylinder lubricating oil duct arrangement structure.
Background
With the continuous improvement of the performance requirements of the engine in the automobile industry, the requirements on the thermal efficiency of the engine are higher and higher, and the flow resistance of the cylinder lubricating oil duct serving as an important flow path of engine lubricating oil is required to be as small as possible. Therefore, on the premise that the lubricating oil pressure requirement of the terminal is unchanged, the load of the oil pump is reduced, and the efficiency and the economy of the engine can be improved. Traditional cylinder body lubrication oil duct circuit often receives limiting factors influences such as structure, technology, and there are more turns, after lubricating oil gets into cylinder body lubrication oil duct from oil cooler and oil cleaner module, only can get into parts that need lubricated such as cylinder cap, main shaft bearing plate and piston cooling nozzle through a lot of turns respectively, causes that the flow resistance is great, pressure drop is serious, the engine consumption is higher.
CN207064096U discloses an arrangement structure of a lubricating oil duct of an engine cylinder, which comprises a main oil duct arranged on an air inlet side of the cylinder and a piston cooling nozzle lubricating oil duct arranged on an air outlet side of the cylinder, wherein the piston cooling nozzle lubricating oil duct is parallel to the main oil duct and higher than the main oil duct in a Z direction, a horizontal oil duct is arranged at the front end of the cylinder, and the horizontal oil duct is communicated with one end of the main oil duct; and a vertical oil passage is arranged at the front end of the exhaust side of the cylinder body, and the lower end of the vertical oil passage is communicated with the lubricating oil passage of the piston cooling nozzle and the other end of the transverse horizontal oil passage. The arrangement structure of the lubricating oil duct of the engine cylinder body can ensure that the piston is used for cooling the nozzle for lubricating oil supply, can avoid a crank case from forming a 'well' -shaped oil duct, improves manufacturability, and overcomes the difficulty that aluminum scraps can not be precast and can only be blocked and cleaned due to the fact that transverse and longitudinal staggered oil ducts can be machined. Needless to say, the technical solution disclosed in this patent document is an advantageous attempt in the art.
Disclosure of Invention
Accordingly, the present invention is directed to an arrangement structure of a low-flow-resistance engine cylinder lubrication oil passage, which can reduce the pressure loss of the cylinder lubrication oil passage line, reduce the power consumption of an oil pump, and improve the efficiency of an engine.
The invention relates to a low-flow-resistance engine cylinder body lubricating oil duct arrangement structure, which comprises a cylinder body main oil duct arranged on the exhaust side of a cylinder body and a piston cooling nozzle lubricating oil duct arranged on the air inlet side of the cylinder body, wherein the lengths of the cylinder body main oil duct and the piston cooling nozzle lubricating oil duct are along the front-back direction;
The engine also comprises an exhaust side inclined oil duct, an air inlet side inclined oil duct, an upper cylinder cover communicating oil duct and a plurality of piston cooling nozzle lubricating auxiliary oil ducts;
The upper end of the exhaust side inclined oil duct is communicated with the main oil duct of the cylinder body, and the lower end of the exhaust side inclined oil duct can be communicated with an oil cooler and an oil filter module;
the upper end of the air inlet side inclined oil duct is communicated with the piston cooling nozzle lubricating oil duct, and the lower end of the air inlet side inclined oil duct can be communicated with an oil cooler and an oil filter module;
The lower end of the upper cylinder cover communication oil duct is communicated with the main oil duct of the cylinder body, and the upper end of the upper cylinder cover communication oil duct can be communicated with the cylinder cover lubricating oil duct;
The piston cooling nozzle lubrication auxiliary oil ducts are arranged at intervals along the front-rear direction, the upper ends of the piston cooling nozzle lubrication auxiliary oil ducts are communicated with the piston cooling nozzle lubrication oil ducts, and the lower ends of the piston cooling nozzle lubrication auxiliary oil ducts can respectively supply oil to and cool the piston cooling nozzles.
Further, the lubricating device further comprises a plurality of main bearing seat oil ducts, a plurality of main bearing seat oil ducts are arranged at intervals along the front-back direction, the upper ends of the main bearing seat oil ducts are communicated with the main oil duct of the cylinder body, and the lower ends of the main bearing seat oil ducts can lubricate all the main bearing seats respectively.
Further, the engine oil inlet device further comprises a supercharger oil inlet channel, one end of the supercharger oil inlet channel is communicated with one of the main bearing seat oil channels, and the other end of the supercharger oil inlet channel can be communicated with the supercharger assembly.
Further, the cylinder body main oil duct is communicated in the front-rear direction, an organic oil pressure sensor is arranged at the front end of the cylinder body main oil duct, and the rear end of the cylinder body main oil duct can be communicated with a timing chain tensioner lubricating oil path.
Further, the piston cooling nozzle lubricating oil duct is a blind hole formed by adding the piston cooling nozzle lubricating oil duct from back to front, and the rear end of the piston cooling nozzle lubricating oil duct is provided with a plug.
The beneficial effects of the invention are as follows: according to the invention, through a double-line parallel lubricating oil duct line arrangement mode, oil is supplied to a cylinder body main oil duct and a piston cooling nozzle lubricating oil duct respectively, lubricating oil flows into a cylinder cover lubricating oil duct from an engine oil cooler and an engine oil filter module and passes through two turns, lubricating oil flows into a main bearing seat bearing bush from the engine oil cooler and the engine oil filter module and passes through two turns, lubricating oil flows into a piston cooling nozzle from the engine oil cooler and the engine oil filter module and passes through three turns, and lubricating oil flows into a supercharger assembly from the engine oil cooler and the engine oil filter module and passes through three turns, so that the problems of more turns and large flow resistance caused by overlong lines due to oil way series connection are solved, the pressure loss of the cylinder body lubricating oil duct line is reduced while the lubricating function and the cooling requirement of a piston group of a cylinder body system are ensured, the power consumption of an engine oil pump is reduced, and the efficiency of an engine is further improved.
Drawings
In order to make the objects, technical solutions and advantageous effects of the present invention more clear, the present invention provides the following drawings for description:
FIG. 1 is an isometric view of a lubrication gallery circuit of the present invention;
Fig. 2 is a front view of fig. 1.
The figures are marked as follows: the engine comprises a main oil passage of a 1-cylinder body, a lubricating oil passage of a 2-piston cooling nozzle, a 3-exhaust side inclined oil passage, a 4-intake side inclined oil passage, a 5-upper cylinder cover communicating oil passage, a 6-piston cooling nozzle lubricating auxiliary oil passage, a 7-main bearing seat oil passage and an 8-supercharger oil inlet passage.
Detailed Description
As shown in fig. 1-2, the low-flow-resistance engine cylinder lubricating oil duct arrangement structure in the present embodiment includes a cylinder main oil duct 1 provided on an exhaust side of a cylinder and a piston cooling nozzle lubricating oil duct 2 provided on an intake side of the cylinder, wherein lengths of the cylinder main oil duct 1 and the piston cooling nozzle lubricating oil duct 2 are along a front-rear direction;
The engine also comprises an exhaust side inclined oil duct 3, an intake side inclined oil duct 4, an upper cylinder cover communicating oil duct 5 and a plurality of piston cooling nozzle lubricating auxiliary oil ducts 6;
The upper end of the exhaust side inclined oil duct 3 is communicated with the cylinder body main oil duct 1, and the lower end of the exhaust side inclined oil duct 3 can be communicated with an engine oil cooler and an engine oil filter module;
the upper end of the air inlet side inclined oil duct 4 is communicated with the piston cooling nozzle lubricating oil duct 2, and the lower end of the air inlet side inclined oil duct 4 can be communicated with an engine oil cooler and an engine oil filter module;
the lower end of the upper cylinder cover communication oil duct 5 is communicated with the cylinder body main oil duct 1, and the upper end of the upper cylinder cover communication oil duct 5 can be communicated with a cylinder cover lubricating oil duct;
the plurality of piston cooling nozzle lubrication auxiliary oil passages 6 are arranged at intervals along the front-rear direction, and the upper ends of the plurality of piston cooling nozzle lubrication auxiliary oil passages 6 are all communicated with the piston cooling nozzle lubrication oil passage 2, and the lower ends of the plurality of piston cooling nozzle lubrication auxiliary oil passages 6 can respectively supply oil to and cool each piston cooling nozzle, and in the embodiment, the number of the piston cooling nozzle lubrication auxiliary oil passages 6 is four.
In this embodiment, the bearing further includes a plurality of main bearing seat oil channels 7, the plurality of main bearing seat oil channels 7 are disposed at intervals along the front-rear direction, and the upper ends of the plurality of main bearing seat oil channels 7 are all communicated with the cylinder main oil channel 1, and the lower ends of the plurality of main bearing seat oil channels 7 can lubricate each main bearing seat respectively. The number of main bearing housing oil passages 7 in this embodiment is five.
In this embodiment, the turbocharger further comprises a turbocharger oil inlet duct 8, one end of the turbocharger oil inlet duct 8 is communicated with one of the main bearing housing oil ducts 7, and the other end of the turbocharger oil inlet duct 8 can be communicated with the turbocharger assembly.
In this embodiment, the cylinder main oil gallery 1 is penetrated in the front-rear direction, the front end of the cylinder main oil gallery 1 is provided with an organic oil pressure sensor, and the rear end of the cylinder main oil gallery 1 can be communicated with a timing chain tensioner lubrication oil path. When the engine oil pressure sensor is assembled, the assembly part is sealed at the same time, so that the front end of the main oil duct 1 of the cylinder body is prevented from leaking oil.
In this embodiment, the piston cooling nozzle lubrication oil passage 2 is a blind hole formed by machining from the rear to the front, and a plug is provided at the rear end of the piston cooling nozzle lubrication oil passage 2. The blind hole is convenient to process, and the sealing performance of the piston cooling nozzle lubrication oil duct 2 can be prevented by blocking, and oil leakage at the rear end of the piston cooling nozzle lubrication oil duct 2 is prevented.
The low-flow-resistance engine cylinder body lubricating oil duct arrangement structure in the embodiment is provided with two non-interfering lubricating oil duct lines; the lubricating oil in the first lubricating oil passage line flows into the exhaust side inclined oil passage 3 from the engine oil cooler and the engine oil filter module, then flows into the cylinder main oil passage 1 through the exhaust side inclined oil passage 3, and then flows into the upper cylinder cover communicating oil passage 5, the main bearing seat oil passage 7, the supercharger inlet oil passage 8 and the timing chain tensioner lubricating oil passage from the cylinder main oil passage 1 respectively, so that enough lubricating oil can be provided for the cylinder cover lubricating oil passage, each main bearing seat bearing bush, the supercharger assembly and the timing chain tensioner; the lubricating oil in the second lubricating oil passage line flows into the air inlet side inclined oil passage 4 from the engine oil cooler and the engine oil filter module, then flows into the piston cooling nozzle lubricating oil passage 2 through the air inlet side inclined oil passage 4, and flows into each piston cooling nozzle lubricating auxiliary oil passage 6 from the piston cooling nozzle lubricating oil passage 2, so that enough lubricating oil can be provided for each piston cooling nozzle. Through this kind of parallel lubricated oil duct circuit arrangement mode of double-line, oil feed to cylinder body main oil duct 1 and piston cooling nozzle lubrication oil duct 2 respectively, lubricating oil flows into the cylinder cap lubrication oil duct from oil cooler and oil cleaner module and only passes through twice turn, lubricating oil flows into the main bearing seat axle bush from oil cooler and oil cleaner module and also passes through twice turn, lubricating oil flows into the piston cooling nozzle from oil cooler and oil cleaner module and also passes through twice turn, lubricating oil flows into the booster assembly from oil cooler and oil cleaner module and only passes through three times turn, the problem that the turn is many because of the oil circuit series connection causes the circuit overlength is improved, pressure loss of cylinder body lubrication oil duct circuit has been reduced when guaranteeing the lubrication function of cylinder body system and piston group cooling demand, and then engine's efficiency has been improved.
Finally, it is noted that the above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the technical solution of the present invention, which is intended to be covered by the scope of the claims of the present invention.
Claims (4)
1. The utility model provides a lubricated oil duct arrangement structure of engine cylinder body of low flow resistance, is including setting up cylinder body main oil duct (1) and the piston cooling nozzle lubrication oil duct (2) of arranging in the cylinder body air inlet side of cylinder body exhaust side, the length of cylinder body main oil duct (1) and piston cooling nozzle lubrication oil duct (2) is all along fore-and-aft direction, its characterized in that:
The engine also comprises an exhaust side inclined oil duct (3), an air inlet side inclined oil duct (4), an upper cylinder cover communicating oil duct (5) and a plurality of piston cooling nozzle lubricating auxiliary oil ducts (6);
the upper end of the exhaust side inclined oil duct (3) is communicated with the main oil duct (1) of the cylinder body, and the lower end of the exhaust side inclined oil duct (3) can be communicated with an oil cooler and an oil filter module;
The upper end of the air inlet side inclined oil duct (4) is communicated with the piston cooling nozzle lubricating oil duct (2), and the lower end of the air inlet side inclined oil duct (4) can be communicated with an engine oil cooler and an engine oil filter module;
the lower end of the upper cylinder cover communication oil duct (5) is communicated with the cylinder body main oil duct (1), and the upper end of the upper cylinder cover communication oil duct (5) can be communicated with a cylinder cover lubricating oil duct;
The piston cooling nozzle lubrication auxiliary oil ducts (6) are arranged at intervals along the front-rear direction, the upper ends of the piston cooling nozzle lubrication auxiliary oil ducts (6) are communicated with the piston cooling nozzle lubrication oil duct (2), and the lower ends of the piston cooling nozzle lubrication auxiliary oil ducts (6) can respectively supply oil to and cool each piston cooling nozzle;
The lubricating device further comprises a plurality of main bearing seat oil passages (7), wherein the upper ends of the main bearing seat oil passages (7) are communicated with the main oil passage (1) of the cylinder body, and the lower ends of the main bearing seat oil passages (7) can lubricate all the main bearing seats respectively;
The oil inlet device further comprises a supercharger oil inlet channel (8), one end of the supercharger oil inlet channel (8) is communicated with one of the main bearing seat oil channels (7), and the other end of the supercharger oil inlet channel can be communicated with the supercharger assembly;
The rear end of the main oil duct (1) of the cylinder body can be communicated with a timing chain tensioner lubricating oil way;
The low-flow-resistance engine cylinder body lubricating oil duct arrangement structure is provided with two lubricating oil duct lines which are not mutually interfered; the lubricating oil in the first lubricating oil channel line flows into the exhaust side inclined oil channel (3) from the oil cooler and the oil filter module, then flows into the cylinder main oil channel (1) through the exhaust side inclined oil channel (3), and then flows into the upper cylinder cover communicating oil channel (5), the main bearing seat oil channel (7), the supercharger oil inlet channel (8) and the timing chain tensioner lubricating oil channel from the cylinder main oil channel (1) respectively, so that enough lubricating oil can be provided for the cylinder cover lubricating oil channel, each main bearing seat bearing bush, the supercharger assembly and the timing chain tensioner; and in the second lubricating oil passage line, lubricating oil flows into the air inlet side inclined oil passage (4) from the engine oil cooler and the engine oil filter module, then flows into the piston cooling nozzle lubricating oil passage (2) through the air inlet side inclined oil passage (4), and flows into each piston cooling nozzle lubricating auxiliary oil passage (6) from the piston cooling nozzle lubricating oil passage (2), so that enough lubricating oil can be provided for each piston cooling nozzle.
2. The low flow resistance engine block lubrication oil passage arrangement structure according to claim 1, characterized in that: the main bearing seat oil ducts (7) are arranged at intervals along the front-rear direction.
3. The low flow resistance engine block lubrication oil passage arrangement structure according to claim 1, characterized in that: the main oil duct (1) of the cylinder body is communicated in the front-back direction, and an organic oil pressure sensor is arranged at the front end of the main oil duct (1) of the cylinder body.
4. The low flow resistance engine block lubrication oil passage arrangement structure according to claim 1, characterized in that: the piston cooling nozzle lubrication oil duct (2) is a blind hole formed by machining from back to front, and the rear end of the piston cooling nozzle lubrication oil duct (2) is provided with a plug.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210155383.4A CN114542233B (en) | 2022-02-21 | 2022-02-21 | Low-flow-resistance engine cylinder body lubricating oil duct arrangement structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210155383.4A CN114542233B (en) | 2022-02-21 | 2022-02-21 | Low-flow-resistance engine cylinder body lubricating oil duct arrangement structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114542233A CN114542233A (en) | 2022-05-27 |
| CN114542233B true CN114542233B (en) | 2024-05-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210155383.4A Active CN114542233B (en) | 2022-02-21 | 2022-02-21 | Low-flow-resistance engine cylinder body lubricating oil duct arrangement structure |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09287429A (en) * | 1996-04-18 | 1997-11-04 | Nippon Soken Inc | Lubricating device of internal combustion engine |
| CN207064096U (en) * | 2017-07-21 | 2018-03-02 | 重庆长安汽车股份有限公司 | A kind of Lubricating oil channel of engine cylinder body arrangement |
| CN107939505A (en) * | 2017-10-29 | 2018-04-20 | 重庆长安汽车股份有限公司 | A kind of oil line arrangement structure of engine piston cooling nozzle |
| CN208364232U (en) * | 2018-06-20 | 2019-01-11 | 浙江吉利控股集团有限公司 | A kind of piston cooling structure, engine-cooling system, engine and automobile |
| CN210799066U (en) * | 2019-12-02 | 2020-06-19 | 哈尔滨东安汽车发动机制造有限公司 | Arrangement structure of engine cylinder block lubricating oil way |
| CN113417712A (en) * | 2021-07-28 | 2021-09-21 | 奇瑞汽车股份有限公司 | Lubricating system of engine and engine |
-
2022
- 2022-02-21 CN CN202210155383.4A patent/CN114542233B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09287429A (en) * | 1996-04-18 | 1997-11-04 | Nippon Soken Inc | Lubricating device of internal combustion engine |
| CN207064096U (en) * | 2017-07-21 | 2018-03-02 | 重庆长安汽车股份有限公司 | A kind of Lubricating oil channel of engine cylinder body arrangement |
| CN107939505A (en) * | 2017-10-29 | 2018-04-20 | 重庆长安汽车股份有限公司 | A kind of oil line arrangement structure of engine piston cooling nozzle |
| CN208364232U (en) * | 2018-06-20 | 2019-01-11 | 浙江吉利控股集团有限公司 | A kind of piston cooling structure, engine-cooling system, engine and automobile |
| CN210799066U (en) * | 2019-12-02 | 2020-06-19 | 哈尔滨东安汽车发动机制造有限公司 | Arrangement structure of engine cylinder block lubricating oil way |
| CN113417712A (en) * | 2021-07-28 | 2021-09-21 | 奇瑞汽车股份有限公司 | Lubricating system of engine and engine |
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| Publication number | Publication date |
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| CN114542233A (en) | 2022-05-27 |
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