CN113719332A - Engine lubricating system and engine - Google Patents
Engine lubricating system and engine Download PDFInfo
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- CN113719332A CN113719332A CN202010450854.5A CN202010450854A CN113719332A CN 113719332 A CN113719332 A CN 113719332A CN 202010450854 A CN202010450854 A CN 202010450854A CN 113719332 A CN113719332 A CN 113719332A
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- oil
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- oil duct
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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
- F01M1/00—Pressure lubrication
- F01M1/02—Pressure lubrication using lubricating pumps
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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
- F01M1/00—Pressure lubrication
- F01M1/04—Pressure lubrication using pressure in working cylinder or crankcase to operate lubricant feeding devices
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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
- F01M1/00—Pressure lubrication
- F01M1/08—Lubricating systems characterised by the provision therein of lubricant jetting means
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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
- F01M1/00—Pressure lubrication
- F01M1/16—Controlling lubricant pressure or quantity
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- 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
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- 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 relates to the technical field of lubrication of engines, in particular to an engine lubricating system and an engine. The inlet of the cylinder oil duct is communicated with the oil pump; an outlet of the cylinder oil duct is communicated with an inlet of the piston cooling nozzle oil duct, a nozzle oil duct control valve is arranged between the outlet of the cylinder oil duct and the inlet of the piston cooling nozzle oil duct, the nozzle oil duct control valve is in communication connection with an engine control system, and the engine control system controls the opening or closing of the nozzle oil duct control valve; the outlet of the cylinder oil duct is also communicated with the inlet of the feedback oil duct, the outlet of the feedback oil duct is communicated with the oil pump, a pressure monitoring piece is arranged on the feedback oil duct, the pressure monitoring piece detects the pressure in the feedback oil duct, the pressure monitoring piece is in communication connection with the oil pump, and the oil pump adjusts the displacement according to a pressure signal fed back by the pressure monitoring piece. The engine lubricating system has the advantages of better energy conservation and consumption reduction, and can ensure the pressure stability of the engine lubricating system and the whole engine and the normal work of the engine.
Description
Technical Field
The invention relates to the technical field of lubrication of engines, in particular to an engine lubricating system and an engine.
Background
With the widespread use of automobiles, people pay more and more attention to the performance of automobiles, and the performance of engines as important parts of automobiles is continuously improved. When the engine works, the friction surfaces move relatively at a high speed, and the friction between the metal surfaces not only increases the power consumption in the engine and leads the working surfaces of parts to be quickly worn; the heat generated by friction may also melt the surfaces of certain working parts, causing the engine to fail to operate properly. Therefore, in order to ensure the normal operation of the engine, the surfaces of the relatively moving parts in the engine must be lubricated, namely, a layer of lubricant is covered on the friction surface, and a thin oil film is arranged between the metal surfaces to reduce the friction resistance, reduce the power loss, reduce the abrasion and prolong the service life of the engine.
The prior art discloses an engine lubrication system structure, it includes the cylinder body, assembles the cylinder cap at cylinder body top, assembles the sprocket chamber cap at the cylinder body front portion, the oil pump of integrated in the sprocket chamber cap, the oil pan of assembly bottom the cylinder body, the strainer of assembly in the oil pan, the filter of assembly on the cylinder body, the cooler of assembly at the filter entry, its technical essential is: the oil pump is respectively communicated with the variable valve timing oil inlet, the lubricating oil cooler oil inlet, the chain nozzle oil inlet and the supercharger oil inlet.
The engine lubrication system structure in the above patent document does not consider the actual oil requirement of each lubrication part, for example, the cylinder main bearing needs higher lubrication oil, but the camshaft bearing does not need so much lubrication oil, so the engine lubrication system structure in the above patent causes unnecessary waste of lubrication oil.
Disclosure of Invention
Therefore, the technical problem to be solved by the invention is to overcome the problem that the structure of the engine lubricating system of the existing product can cause unnecessary waste of lubricating oil, thereby providing an engine lubricating system which can not cause unnecessary waste of lubricating oil and an engine provided with the engine lubricating system.
In order to solve the problems, the invention provides an engine lubricating system, which comprises an oil pump and an engine control system, wherein the engine lubricating system comprises a cylinder oil duct, a piston cooling nozzle oil duct, a feedback oil duct, a nozzle oil duct control valve and a pressure monitoring piece; the inlet of the cylinder oil duct is communicated with the oil pump; an outlet of the cylinder oil duct is communicated with an inlet of the piston cooling nozzle oil duct, the nozzle oil duct control valve is arranged between the outlet of the cylinder oil duct and the inlet of the piston cooling nozzle oil duct, the nozzle oil duct control valve is in communication connection with the engine control system, and the engine control system controls the opening or closing of the nozzle oil duct control valve; the outlet of the cylinder oil duct is also communicated with the inlet of the feedback oil duct, the outlet of the feedback oil duct is communicated with the oil pump, the pressure monitoring piece is arranged on the feedback oil duct and used for detecting the pressure in the feedback oil duct, the pressure monitoring piece is in communication connection with the oil pump, and the oil pump adjusts the displacement according to a pressure signal fed back by the pressure monitoring piece.
Wherein the pressure monitoring member is a first control valve.
The outlet of the cylinder oil duct is communicated with the inlet of the cylinder cover main oil duct, and a throttle valve is arranged between the outlet of the cylinder oil duct and the inlet of the cylinder cover main oil duct.
The cylinder body oil duct is connected with the cylinder body main journal, the cylinder body main journal is connected with the crankshaft internal oil duct, and lubricating oil in the cylinder body oil duct flows into the cylinder body main journal and then flows into the connecting rod journal through the crankshaft internal oil duct.
The oil pump is a variable-displacement oil pump or an electric oil pump, a lubricating oil collector is integrated on the oil pump, and the lubricating oil collector is communicated with an outlet of the feedback oil channel.
Wherein the outlet of the cylinder oil passage is also in communication with the variable valve timing through a variable valve timing oil passage.
The outlet of the cylinder oil channel is also connected with a chain tensioner, and the chain tensioner is connected with a timing chain.
And a lubricating oil filter is also arranged between the inlet of the cylinder oil passage and the oil pump.
Wherein, the cylinder body oil passage is a cylinder body main oil passage.
The invention also provides an engine which is provided with the engine lubricating system.
In the engine lubricating system, the lubricating oil in the oil pump enters the cylinder oil duct, when a piston of an engine needs to be cooled, the engine control system outputs an instruction to control the opening of the nozzle oil duct control valve, the lubricating oil in the cylinder oil duct enters the piston cooling nozzle oil duct after passing through the nozzle oil duct control valve, the lubricating oil is sprayed out of the piston cooling nozzle oil duct at the moment, so that the leakage amount of the lubricating oil of the whole engine is increased, the pressure in the cylinder oil duct becomes low, the pressure in the feedback oil duct communicated with the cylinder oil duct is reduced, when the pressure monitoring part detects that the pressure in the feedback oil duct becomes low, the pressure monitoring part transmits a pressure signal to the oil pump, and the oil pump improves the oil supply capacity according to the pressure signal; when the piston of the engine does not need to be cooled, the engine control system outputs an instruction to control the nozzle oil duct control valve to be closed, the lubricating oil in the cylinder oil duct does not enter the piston cooling nozzle oil duct, the leakage amount of the lubricating oil of the whole engine is reduced, the pressure in the cylinder oil duct is increased, the pressure in the feedback oil duct is increased, when the pressure monitoring part detects the pressure increase in the feedback oil duct, the pressure monitoring part transmits the pressure signal to the oil pump, and the oil pump reduces the oil supply capacity according to the pressure signal to ensure the stable pressure of the whole engine. According to the engine lubricating system, the on-off of the cylinder body oil duct and the piston cooling nozzle oil duct is controlled through the nozzle oil duct control valve, so that the piston cooling nozzle oil duct can use oil according to the use requirement, the waste of the lubricating oil quantity is reduced, and the better effects of energy conservation and consumption reduction are achieved; meanwhile, the arrangement of the feedback oil circuit and the pressure monitoring piece can ensure the pressure stability of the whole engine lubricating system and the engine, and ensure the normal work of the engine.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic diagram of the engine lubrication system of the present invention;
FIG. 2 is a schematic diagram of the structural connections of the engine lubrication system of the present invention;
description of reference numerals:
1-an oil pump; 2-a lubricating oil filter; 3-lubricating oil filter seat; 4-piston cooling nozzles; 5-cooling the nozzle oil duct by the piston; 6-cylinder body main oil gallery; 7-cylinder cover main oil gallery; 8-a throttle valve; 9-variable valve timing; 10-a chain tensioner; 11-nozzle oil duct control valve; 12-a feedback oil passage; 13-a first control valve; 14-oil sump.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present 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.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
The present embodiment provides an engine, which is an important part of an automobile and affects the performance of the automobile. In order to ensure the normal operation of the engine, the surfaces of the relatively moving parts in the engine must be lubricated, that is, a layer of lubricant (lubricating oil or grease) is covered on the friction surface, and a thin oil film is arranged between the surfaces of the moving parts, so as to reduce the friction resistance, reduce the power loss, reduce the abrasion and prolong the service life of the engine. The engine of the present embodiment is equipped with an engine lubrication system described below, as shown in fig. 1 and 2.
The components of the engine include a cylinder block, a cylinder head, an oil pan 14, an oil filter 2, an oil pump 1, a chain tensioner 10, variable valve timing 9, a piston cooling nozzle 4, and an engine control system. The cylinder head is assembled on the top of the cylinder body, the oil pan 14 is assembled on the bottom of the cylinder body, and the lubricating oil filter 2, the oil pump 1, the chain tensioner 10, the variable valve timing 9 and the piston cooling nozzle 4 can be arranged on the engine according to the use requirement. Among them, Variable Valve Timing 9 (VVT) is a technology used in an automotive piston engine.
The engine lubricating system uses lubricating media such as lubricating oil and the like, and comprises a cylinder oil channel, a piston cooling nozzle oil channel 5, a feedback oil channel 12, a nozzle oil channel control valve 11, a first control valve 13 and a throttle valve 8, wherein the piston cooling nozzle 4 is abbreviated as PCJ in English.
The oil pump 1 is connected with the oil sump 14, the oil pump is used for forcibly pressing and conveying lubricating oil to the moving surfaces of various parts of an engine after the lubricating oil is increased to a certain pressure, the oil sump is used for sealing a crankcase and is used as a shell of an oil storage tank, impurities are prevented from entering the oil storage tank, the lubricating oil flowing back from various friction surfaces of a diesel engine is collected and stored, partial heat is dissipated, and the lubricating oil is prevented from being oxidized. The oil pump 1 pumps out the lubricating oil in the oil sump 14, and the rotating speed of the oil pump 1 changes according to different working conditions of the engine, and the oil supply amount of the oil pump 1 is also different, so as to meet the requirements of engine lubrication under different working conditions. The oil pump 1 is connected with the lubricating oil filter 2, lubricating oil flowing out of the oil pump 1 enters the lubricating oil filter 2, and is filtered in the lubricating oil filter 2 to filter impurities in the lubricating oil, so that damage to an engine caused by impurities in the lubricating oil is reduced. As shown in fig. 1, the oil filter 2 is arranged on an oil filter base 3.
In this embodiment, the oil pump 1 is integrated with a lubricant collector, the lubricant collector is communicated with an outlet of the feedback oil passage 12, and collects lubricant flowing out of the feedback oil passage 12, and the lubricant in the lubricant collector is pumped out again by the oil pump 1 and enters the engine lubrication system.
The outlet of the lubricating oil filter 2 is communicated with the inlet of the cylinder oil duct, the lubricating oil filtered by the lubricating oil filter 2 rises into the cylinder oil duct, the cylinder oil duct is communicated with six parts, and the lubricating oil in the cylinder oil duct forcibly enters the six parts. In this embodiment, it is described as an example that the cylinder oil passage is communicated with six portions, and when there are other requirements, the cylinder oil passage may be further communicated with other portions except the six portions according to the requirements of use.
In the first part, the cylinder body oil duct is connected with the cylinder body main journal, the cylinder body main journal is connected with the crankshaft internal oil duct, and lubricating oil in the cylinder body oil duct flows into the cylinder body main journal and then flows into the connecting rod journal through the crankshaft internal oil duct. The part of the engine oil is used for preventing the crankshaft bearing bush and the crankshaft and the connecting rod bearing bush and the connecting rod from being dead, so that the engine is damaged, and the part of the engine oil consumes more engine oil.
In the second part, an outlet of the cylinder oil passage is communicated with an inlet of the piston cooling nozzle oil passage 5, a nozzle oil passage control valve 11 is arranged between the outlet of the cylinder oil passage and the inlet of the piston cooling nozzle oil passage 5, the nozzle oil passage control valve 11 is in communication connection with the engine control system, and the engine control system controls the opening or closing of the nozzle oil passage control valve 11. That is, when the piston of the engine needs to be cooled, the engine control system outputs a command to control the opening of the nozzle oil passage control valve 11, the lubricating oil in the cylinder oil passage enters the piston cooling nozzle oil passage 5 after passing through the nozzle oil passage control valve 11, the lubricating oil is sprayed out from the piston cooling nozzle, the lubricating oil lubricates the piston, and the leakage amount of the lubricating oil of the whole engine is increased; when the piston of the engine does not need to be cooled, the engine control system outputs an instruction to control the nozzle oil passage control valve 11 to be closed, lubricating oil in the cylinder oil passage does not enter the piston cooling nozzle oil passage 5, and the leakage amount of the lubricating oil of the whole engine is reduced. The on-off of the cylinder oil duct and the piston cooling nozzle oil duct 5 is controlled by the nozzle oil duct control valve 11, so that the piston cooling nozzle oil duct 5, the piston cooling nozzle and the piston can use oil according to the use requirement, the waste of lubricating oil is reduced, and good effects of energy conservation and consumption reduction are achieved.
In the third part, the outlet of the cylinder oil channel is connected with the chain tensioner 10, the chain tensioner 10 is connected with a timing chain, and lubricating oil lubricates the timing chain after passing through the chain tensioner 10. This part of the lubricating oil can lubricate the timing chain, and this part consumes a smaller amount of lubricating oil.
In the fourth part, the outlet of the cylinder oil passage is also communicated with the variable valve timing 9 through the variable valve timing oil passage, lubricating oil enters the variable valve timing 9 through the variable valve timing oil passage, and the lubricating oil in the fourth part is used for ensuring that the variable valve timing 9 can timely adjust the opening and closing time and the air inflow of the valve of the engine, so that the efficiency of the engine is improved, and the oil consumption is reduced. In this embodiment, the variable valve timing oil passage passes through the cylinder head. Of course, the variable valve timing oil passage can be arranged in other ways according to the use requirement.
And the fifth part is characterized in that the outlet of the cylinder oil duct is also communicated with the inlet of the cylinder cover main oil duct 7, and because the cylinder cover valve tappet does not need too high engine oil flow, a throttle valve 8 is arranged between the outlet of the cylinder oil duct and the inlet of the cylinder cover main oil duct 7, and the setting of the throttle valve 8 can properly reduce the flow of the lubricating oil, so that the lubricating oil entering the cylinder cover main oil duct 7 is matched with the required quantity of the cylinder cover valve tappet and the like, the waste caused by too much lubricating oil is reduced, and the purpose of better reducing the oil consumption is achieved.
In the sixth part, the outlet of the cylinder oil passage is further communicated with the inlet of the feedback oil passage 12, the outlet of the feedback oil passage 12 is communicated with a lubricating oil collector integrated on the oil pump 1, the feedback oil passage 12 is provided with the first control valve 13, the first control valve 13 detects the pressure in the feedback oil passage 12, the first control valve 13 is in communication connection with the oil pump 1, and the oil pump 1 adjusts the displacement according to a pressure signal fed back by the first control valve 13. Since the cylinder oil passage is communicated with the feedback oil passage 12, when the pressure in one of the cylinder oil passage and the feedback oil passage 12 changes, the pressure in the other of the cylinder oil passage and the feedback oil passage 12 also changes correspondingly.
When the pressure in the feedback oil passage 12 decreases, the first control valve 13 can detect that the pressure in the feedback oil passage 12 becomes low, the first control valve 13 transmits the pressure signal to the oil pump 1, and the oil pump 1 improves the oil supply capacity according to the pressure signal; when the pressure in the feedback oil passage 12 rises, the first control valve 13 can detect the pressure rise in the feedback oil passage 12, the first control valve 13 transmits the pressure signal to the oil pump 1, and the oil pump 1 reduces the oil supply capacity according to the pressure signal. The feedback oil path and the first control valve 13 are arranged, so that the pressure of lubricating oil in the cylinder oil duct can be guaranteed to be stable, the pressure of the whole engine can be guaranteed to be stable, and the normal work of the engine can be guaranteed.
Because the engine needs to adjust the rotation speed of the oil pump 1 according to different working conditions of the engine, and according to the pressure in the feedback oil duct 12 and the pressure in the cylinder oil duct, so that the oil supply amount of the oil pump 1 meets the requirement of engine lubrication under different working conditions, in this embodiment, the oil pump 1 is a variable displacement oil pump 1 or an electric oil pump. When the oil pump 1 selects the electric oil pump, the oil pump 1 is driven directly by the motor without being driven by a crankshaft, and the structure in the engine is simpler.
The first control valve 13 is used for detecting the pressure change in the feedback oil passage 12, and other pressure detecting parts can also detect the pressure change in the oil passage, so that the first control valve 13 can be replaced by other pressure monitoring parts.
The cylinder body can be provided with the cylinder body main oil gallery 6 according to the use requirement, or is provided with the cylinder body main oil gallery 6 and the cylinder body auxiliary oil gallery, so that the cylinder body oil gallery can be only the cylinder body main oil gallery 6, and can also be the cylinder body main oil gallery 6 and the cylinder body auxiliary oil gallery, and the cylinder body oil gallery can be set according to the use requirement. In the present embodiment, the cylinder oil passage refers to the cylinder main oil passage 6.
In the engine lubrication system in this embodiment, when a piston of an engine needs to be cooled, the engine control system outputs an instruction to control the opening of the nozzle oil duct control valve 11, and the lubricating oil in the cylinder oil duct enters the piston cooling nozzle oil duct 5 after passing through the nozzle oil duct control valve 11, and at this time, the lubricating oil is ejected from the piston cooling nozzle oil duct 5, so that the leakage amount of the lubricating oil of the whole engine is increased, the pressure in the cylinder oil duct becomes low, the pressure in the feedback oil duct 12 communicated with the cylinder oil duct decreases, and when the pressure monitoring element detects that the pressure in the feedback oil duct 12 becomes low, the pressure monitoring element transmits the pressure signal to the oil pump 1, and the oil pump 1 improves the oil supply capability according to the pressure signal; when the piston of the engine does not need to be cooled, the engine control system outputs an instruction to control the nozzle oil duct control valve 11 to close, the lubricating oil in the cylinder oil duct does not enter the piston cooling nozzle oil duct 5, the leakage amount of the lubricating oil of the whole engine is reduced, the pressure in the cylinder oil duct is increased, the pressure in the feedback oil duct 12 is increased, when the pressure monitoring part detects the pressure increase in the feedback oil duct 12, the pressure monitoring part transmits the pressure signal to the oil pump 1, and the oil pump 1 reduces the oil supply capacity according to the pressure signal, so that the pressure stability of the whole engine is ensured. In the engine lubricating system in the embodiment, the on-off between the cylinder oil duct and the piston cooling nozzle oil duct 5 is controlled by the nozzle oil duct control valve 11, so that the piston cooling nozzle oil duct 5 can use oil according to the use requirement, the waste of the lubricating oil quantity is reduced, and the better effects of energy conservation and consumption reduction are achieved; meanwhile, the arrangement of the feedback oil circuit and the pressure monitoring piece can ensure the pressure stability of the whole engine lubricating system and the engine, and ensure the normal work of the engine.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.
Claims (10)
1. An engine lubrication system comprises an oil pump (1) and an engine control system, and is characterized by comprising a cylinder oil duct, a piston cooling nozzle oil duct (5), a feedback oil duct (12), a nozzle oil duct control valve (11) and a pressure monitoring piece;
the inlet of the cylinder oil duct is communicated with the oil pump (1); an outlet of the cylinder oil duct is communicated with an inlet of the piston cooling nozzle oil duct (5), the nozzle oil duct control valve (11) is arranged between the outlet of the cylinder oil duct and the inlet of the piston cooling nozzle oil duct (5), the nozzle oil duct control valve (11) is in communication connection with the engine control system, and the engine control system controls the opening or closing of the nozzle oil duct control valve (11); the outlet of the cylinder oil duct is also communicated with the inlet of the feedback oil duct (12), the outlet of the feedback oil duct (12) is communicated with the oil pump (1), the feedback oil duct (12) is provided with the pressure monitoring piece, the pressure monitoring piece detects the pressure in the feedback oil duct (12), the pressure monitoring piece is in communication connection with the oil pump (1), and the oil pump (1) adjusts the displacement according to a pressure signal fed back by the pressure monitoring piece.
2. The engine lubrication system of claim 1, wherein the pressure monitoring member is a first control valve.
3. The engine lubrication system according to claim 1, wherein the outlet of the block oil gallery is further communicated with an inlet of a cylinder head main oil gallery (7), and a throttle valve (8) is provided between the outlet of the block oil gallery and the inlet of the cylinder head main oil gallery (7).
4. The engine lubrication system according to claim 1, wherein the cylinder oil gallery is connected to a cylinder main journal, the cylinder main journal is connected to an internal crankshaft oil gallery, and the lubricating oil in the cylinder oil gallery flows into the cylinder main journal and then flows into the connecting rod journal through the internal crankshaft oil gallery.
5. The engine lubrication system according to claim 1, wherein the oil pump (1) is a variable displacement oil pump (1), or an electric oil pump, and a lubricant collector is integrated with the oil pump (1), and communicates with an outlet of the feedback oil passage (12).
6. Engine lubrication system according to claim 1, characterised in that the outlet of the block oil gallery is also in communication with variable valve timing (9) via a variable valve timing oil gallery.
7. The engine lubrication system according to claim 1, wherein the outlet of the block oil gallery is further connected to a chain tensioner (10), the chain tensioner (10) being connected to a timing chain.
8. Engine lubricating system according to any of claims 1-7, characterized in that a lubricating oil filter (2) is also provided between the inlet of the block oil gallery and the oil pump (1).
9. Engine lubrication system according to any of claims 1-7, characterized in that the block oil gallery is a block main oil gallery (6).
10. An engine, characterized in that an engine lubrication system as claimed in any one of claims 1-9 is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010450854.5A CN113719332A (en) | 2020-05-25 | 2020-05-25 | Engine lubricating system and engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010450854.5A CN113719332A (en) | 2020-05-25 | 2020-05-25 | Engine lubricating system and engine |
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| CN113719332A true CN113719332A (en) | 2021-11-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010450854.5A Pending CN113719332A (en) | 2020-05-25 | 2020-05-25 | Engine lubricating system and engine |
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| CN (1) | CN113719332A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114320521A (en) * | 2021-12-29 | 2022-04-12 | 浙江吉利控股集团有限公司 | Oil pump control method and device and engine system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08246871A (en) * | 1995-03-14 | 1996-09-24 | Nissan Motor Co Ltd | Lubricating system for internal combustion engine |
| CN201221389Y (en) * | 2008-06-13 | 2009-04-15 | 奇瑞汽车股份有限公司 | Engine cylinder cap lubricating oil way |
| CN108894847A (en) * | 2018-08-16 | 2018-11-27 | 湖南机油泵股份有限公司 | A kind of direct-push single-chamber pressurization becomes the control system of row's lubricating oil pump |
| CN110017189A (en) * | 2019-04-26 | 2019-07-16 | 重庆长安汽车股份有限公司 | A kind of engine lubrication system |
| CN210509320U (en) * | 2019-07-11 | 2020-05-12 | 重庆小康工业集团股份有限公司 | Vehicle lubricating system |
-
2020
- 2020-05-25 CN CN202010450854.5A patent/CN113719332A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08246871A (en) * | 1995-03-14 | 1996-09-24 | Nissan Motor Co Ltd | Lubricating system for internal combustion engine |
| CN201221389Y (en) * | 2008-06-13 | 2009-04-15 | 奇瑞汽车股份有限公司 | Engine cylinder cap lubricating oil way |
| CN108894847A (en) * | 2018-08-16 | 2018-11-27 | 湖南机油泵股份有限公司 | A kind of direct-push single-chamber pressurization becomes the control system of row's lubricating oil pump |
| CN110017189A (en) * | 2019-04-26 | 2019-07-16 | 重庆长安汽车股份有限公司 | A kind of engine lubrication system |
| CN210509320U (en) * | 2019-07-11 | 2020-05-12 | 重庆小康工业集团股份有限公司 | Vehicle lubricating system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114320521A (en) * | 2021-12-29 | 2022-04-12 | 浙江吉利控股集团有限公司 | Oil pump control method and device and engine system |
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Application publication date: 20211130 |
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