CN219809056U - Engine lubrication system and car - Google Patents
Engine lubrication system and car Download PDFInfo
- Publication number
- CN219809056U CN219809056U CN202222568090.7U CN202222568090U CN219809056U CN 219809056 U CN219809056 U CN 219809056U CN 202222568090 U CN202222568090 U CN 202222568090U CN 219809056 U CN219809056 U CN 219809056U
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- Prior art keywords
- oil
- engine
- oil duct
- lubrication system
- duct
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- 238000005461 lubrication Methods 0.000 title claims abstract description 40
- 239000003921 oil Substances 0.000 claims abstract description 120
- 239000010687 lubricating oil Substances 0.000 claims abstract description 37
- 238000006073 displacement reaction Methods 0.000 claims abstract description 17
- 238000012544 monitoring process Methods 0.000 claims description 14
- 238000001816 cooling Methods 0.000 claims description 6
- 239000002826 coolant Substances 0.000 claims description 5
- 239000010705 motor oil Substances 0.000 description 14
- 230000001050 lubricating effect Effects 0.000 description 9
- 230000000694 effects Effects 0.000 description 4
- 239000000110 cooling liquid Substances 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
Landscapes
- Lubrication Of Internal Combustion Engines (AREA)
Abstract
The utility model discloses an engine lubrication system and an automobile, which relate to the field of automobile lubrication systems and comprise the following components: the variable-displacement oil pump is connected with a first lubricating oil duct through a main oil duct, and an intake and exhaust VVT is arranged on the first lubricating oil duct; the second lubricating oil duct is connected with the main oil duct through a control valve; the pressure sensor is arranged on the second lubricating oil duct; the control unit is connected with the variable displacement oil pump, the control valve and the pressure sensor; the system adopts the oil ducts to be arranged separately, realizes the accurate control of the oil pressure of the branch oil duct through the variable displacement oil pump, the control valve, the pressure sensor and the control unit, improves the corresponding speed of the intake and exhaust VVT and reduces the emission; meanwhile, the oil pressure requirement of the main oil duct is reduced, the power output of the engine is reduced, and the oil consumption is effectively controlled.
Description
Technical Field
The utility model belongs to the field of automobile lubrication systems, and particularly relates to an engine lubrication system and an automobile.
Background
When the engine works, in order to ensure the normal work of the engine, the surfaces of the relative moving parts in the engine are lubricated, namely, a layer of lubricating oil is covered on the friction surface, so that a layer of thin oil film is arranged between the metal surfaces, thereby reducing friction resistance, reducing power loss, reducing abrasion and prolonging the service life of the engine. However, the oil pressures of the lubricating oil required by all parts of the engine are different, and the same oil passage is adopted to lubricate the parts, so that excessive discharge of an oil pump is caused, the mechanical consumption power is improved, and the oil consumption of the engine is affected.
Disclosure of Invention
Aiming at the defects in the prior art, the utility model provides a design scheme of an engine lubrication system, wherein the system adopts oil ducts to be arranged separately, realizes the accurate control of the oil pressure of a branch oil duct through a variable displacement oil pump, a control valve, a pressure sensor and a control unit, improves the corresponding speed of an intake and exhaust VVT and reduces the emission; meanwhile, the oil pressure requirement of the main oil duct is reduced, the power output of the engine is reduced, and the oil consumption is effectively controlled.
In order to achieve the above object, the present utility model provides an engine lubrication system comprising:
the variable-displacement oil pump is connected with a first lubricating oil duct through a main oil duct, and an intake and exhaust VVT is arranged on the first lubricating oil duct;
the second lubricating oil duct is connected with the main oil duct through a control valve;
the pressure sensor is arranged on the second lubricating oil duct;
and the control unit is connected with the variable displacement oil pump, the control valve and the pressure sensor.
Optionally, the engine working state monitoring device further comprises an engine working state monitoring unit, and the control unit is connected with the engine working state monitoring unit.
Optionally, the engine operating state monitoring unit includes an engine speed sensor, a coolant temperature sensor, and an oil temperature sensor.
Optionally, an oil filter and an oil cooler are arranged on the main oil duct.
Optionally, the first lubrication oil passage is also in communication with a supercharger and a timing chain tensioner.
The second lubricating oil duct is communicated with the crank connecting rod mechanism, the piston cooling nozzle, the cam shaft mechanism and the hydraulic tappet.
Optionally, the pressure sensor is disposed at an end proximate to the control valve.
The control valve is an oil duct control electromagnetic valve.
The control unit is an engine control unit.
The utility model also provides an automobile comprising the engine lubricating system.
The utility model provides a design scheme of an engine lubrication system and an automobile, and has the beneficial effects that:
1. the lubricating system can solve the problem that the low-rotation-speed intake and exhaust VVT is difficult to control due to insufficient oil pressure, can realize accurate control even in idle speed, and can effectively reduce emission;
2. the lubricating system realizes the accurate control of oil pressure, effectively reduces the discharge capacity requirement of an engine oil pump and reduces oil consumption;
3. the lubricating system can solve the problem of insufficient oil pressure of the supercharger under partial working conditions.
Additional features and advantages of the utility model will be set forth in the detailed description which follows.
Drawings
The foregoing and other objects, features and advantages of the utility model will be apparent from the following more particular descriptions of exemplary embodiments of the utility model as illustrated in the accompanying drawings wherein like reference numbers generally represent like parts throughout the exemplary embodiments of the utility model.
Fig. 1 shows a schematic structure of an engine lubrication system according to an embodiment of the present utility model.
Reference numerals illustrate:
1. a variable displacement oil pump; 2. a main oil duct; 3. a first lubrication oil passage; 4. intake and exhaust VVT; 5. a second lubrication oil passage; 6. a control valve; 7. a pressure sensor; 8. an oil filter; 9. an oil cooler; 10. a supercharger; 11. a timing chain tensioner; 12. a crank-link mechanism; 13. a piston cooling nozzle; 14. a camshaft mechanism; 15. a hydraulic tappet.
Detailed Description
Preferred embodiments of the present utility model will be described in more detail below. While the preferred embodiments of the present utility model are described below, it should be understood that the present utility model may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the utility model to those skilled in the art.
The present utility model provides an engine lubrication system comprising:
the variable-displacement oil pump is connected with a first lubricating oil duct through a main oil duct, and an intake and exhaust VVT is arranged on the first lubricating oil duct;
the second lubricating oil duct is connected with the main oil duct through a control valve;
the pressure sensor is arranged on the second lubricating oil duct;
and the control unit is connected with the variable displacement oil pump, the control valve and the pressure sensor.
Specifically, the lubrication system is provided with two lubrication oil channels, the first lubrication oil channel is connected with the intake and exhaust VVT, the control unit adjusts the opening degree of the control valve through oil pressure signal feedback of the pressure sensor, and the oil pressure of the second lubrication oil channel is controlled to be always at the optimal oil pressure level; on the premise of meeting the oil pressure of the second lubricating oil way, the oil pressure of the main oil way always meets the minimum oil pressure requirement of the intake and exhaust VVT in the full rotating speed range through the adjustment of the variable displacement oil pump.
Optionally, the engine working state monitoring unit is further included, and the control unit is connected with the engine working state monitoring unit.
Specifically, the control unit monitors the working state of the engine according to the data of the engine working state monitoring unit, such as the indexes of rotation speed, load, coolant temperature, engine oil temperature and the like, so that the oil pressure can be at the optimal oil pressure level.
Optionally, the engine operating condition monitoring unit includes an engine speed sensor, a coolant temperature sensor, and an oil temperature sensor.
Optionally, an oil filter and an oil cooler are arranged on the main oil duct.
Specifically, the main oil duct keeps the setting of original lubricating system, filters, cools down through oil cleaner and oil cooler to lubricating oil, guarantees the lubricated effect to the engine.
Optionally, the first lubrication oil passage is also in communication with the supercharger and the timing chain tensioner.
Specifically, the oil paths of the intake and exhaust VVT, the supercharger and the timing chain tensioner are communicated with the first lubricating oil duct, so that the oil supply pressure is improved, the problem that the low-rotation-speed intake and exhaust VVT is difficult to control due to insufficient oil pressure can be solved, even in idling, the VVT can be accurately controlled, and the problems of insufficient oil pressure of the supercharger under the working conditions of emission and part of working conditions can be effectively reduced.
Optionally, the second lubrication oil gallery communicates with the crank linkage, the piston cooling nozzle, the camshaft mechanism, and the hydraulic lifter.
Specifically, the crank connecting rod mechanism, the cam shaft mechanism and the hydraulic tappet mechanism are communicated with the second lubricating oil duct, the oil supply pressure is intelligently regulated by the control valve according to requirements, the overall flow requirement of the lubricating system is reduced, the oil pump discharge requirement is generally reduced, the driving torque of the oil pump is reduced, and the effect of reducing oil consumption is realized.
Optionally, the pressure sensor is disposed at an end proximate to the control valve.
Specifically, the pressure sensor is arranged at the joint of the main oil duct and the second lubricating oil duct, the engine working state monitoring unit calculates the engine oil pressure requirement of the second lubricating oil duct according to the working state of the engine, and the control unit sends out a signal to control the opening of the control valve, so that the engine oil pressure of the second lubricating oil duct reaches the target value, and meanwhile, the executing effect is confirmed according to the feedback signal of the pressure sensor.
Optionally, the control valve is an oil passage control solenoid valve.
Optionally, the control unit is an engine control unit.
The utility model also provides an automobile comprising the engine lubricating system.
Specifically, the lubrication system is used for communicating the oil paths of the intake and exhaust VVT, the supercharger and the timing chain tensioner with the first lubrication oil duct, so that the engine oil pressure is increased, and the response speed of the intake and exhaust VVT is increased; a control valve is added to the second lubricating oil duct, and the oil supply pressure of the second lubricating oil duct communicated with the crank connecting rod mechanism, the cam shaft mechanism and the hydraulic tappet mechanism is intelligently adjusted according to the requirement under the control of the control unit; the oil duct control electromagnetic valves can be arranged on all the branch oil ducts of the lubricating system, and intelligent regulation can be realized on the engine oil pressure of all the branch oil ducts.
Examples
As shown in fig. 1, the present utility model provides an engine lubrication system comprising:
the variable-displacement oil pump 1 is connected with the first lubricating oil duct 3 through the main oil duct 2, and the first lubricating oil duct 3 is provided with an intake and exhaust VVT4;
the second lubricating oil duct 5 is connected with the main oil duct 2 through a control valve 6;
a pressure sensor 7 provided on the second lubrication oil passage 5;
and the control unit is connected with the variable displacement oil pump 1, the control valve 6 and the pressure sensor 7.
In this embodiment, the engine operating state monitoring unit is further included, and the control unit is connected with the engine operating state monitoring unit.
In the present embodiment, the engine operating state monitoring unit includes an engine speed sensor, a coolant temperature sensor, and an oil temperature sensor.
In the present embodiment, the main oil gallery 2 is provided with an oil filter 8 and an oil cooler 9.
In the present embodiment, the first lubrication oil passage 3 is also in communication with the supercharger 10 and the timing chain tensioner 11.
In the present embodiment, the second lubrication oil passage 5 communicates with the crank link mechanism 12, the piston cooling nozzle 13, the camshaft mechanism 14, and the hydraulic lifter 15.
In the present embodiment, the pressure sensor 7 is provided near one end of the control valve 6.
In the present embodiment, the control valve 6 is an oil passage control solenoid valve.
In the present embodiment, the control unit is an engine control unit.
The utility model also provides an automobile comprising the engine lubricating system.
In summary, the lubrication system conveys engine oil to the main oil duct 2 through the variable displacement engine oil pump 1, the engine oil passes through the engine oil filter 8 and the engine oil cooler 9, then the oil way is divided into two ways, one way of the oil way enters the first lubrication oil duct 3, and oil is supplied to the intake and exhaust VVT4, the supercharger 10 and the timing chain tensioner 11; the other path enters a second lubricating oil duct 5 after being regulated by a control valve 6, and oil is respectively supplied to a crank-link mechanism 12, a piston cooling nozzle 13, a cam shaft mechanism 14 and a hydraulic tappet 15 after passing through a pressure sensor 7; the engine control unit calculates the oil pressure requirement of the second lubricating oil duct 5 according to the working state (such as rotating speed, load, cooling liquid temperature, engine oil temperature and the like) of the engine, and sends out a signal to control the opening degree of the oil duct control electromagnetic valve to enable the oil pressure of the second lubricating oil duct 5 to reach a target value, and meanwhile, the executing effect is confirmed according to the feedback signal of the pressure sensor 7; the engine control unit also calculates the oil pressure requirement of the first lubricating oil duct 3 according to the working state (such as rotating speed, load, cooling liquid temperature, engine oil temperature and the like) of the engine, and simultaneously controls the displacement of the variable displacement engine oil pump 1 according to the total requirement of the first lubricating oil duct 3 and the second lubricating oil duct 5, so that the oil pressures of the two oil ducts are always in the optimal working state.
The foregoing description of embodiments of the utility model has been presented for purposes of illustration and description, and is not intended to be exhaustive or limited to the embodiments disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the various embodiments described.
Claims (10)
1. An engine lubrication system, comprising:
the variable-displacement oil pump is connected with a first lubricating oil duct through a main oil duct, and an intake and exhaust VVT is arranged on the first lubricating oil duct;
the second lubricating oil duct is connected with the main oil duct through a control valve;
the pressure sensor is arranged on the second lubricating oil duct;
and the control unit is connected with the variable displacement oil pump, the control valve and the pressure sensor.
2. The engine lubrication system according to claim 1, further comprising an engine operating condition monitoring unit, the control unit being connected to the engine operating condition monitoring unit.
3. The engine lubrication system according to claim 2, wherein the engine operating condition monitoring unit includes an engine speed sensor, a coolant temperature sensor, and an oil temperature sensor.
4. The engine lubrication system according to claim 1, wherein an oil filter and an oil cooler are provided on the main oil gallery.
5. The engine lubrication system according to claim 4, wherein the first lubrication oil passage is further in communication with a supercharger and a timing chain tensioner.
6. The engine lubrication system according to claim 5, wherein the second lubrication oil passage communicates with a crank linkage, a piston cooling nozzle, a camshaft mechanism, and a hydraulic lifter.
7. The engine lubrication system of claim 6, wherein the pressure sensor is disposed proximate an end of the control valve.
8. The engine lubrication system according to claim 1, wherein the control valve is an oil passage control solenoid valve.
9. The engine lubrication system according to claim 1, wherein the control unit is an engine control unit.
10. An automobile comprising an engine lubrication system according to any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222568090.7U CN219809056U (en) | 2022-09-27 | 2022-09-27 | Engine lubrication system and car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222568090.7U CN219809056U (en) | 2022-09-27 | 2022-09-27 | Engine lubrication system and car |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219809056U true CN219809056U (en) | 2023-10-10 |
Family
ID=88209478
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222568090.7U Active CN219809056U (en) | 2022-09-27 | 2022-09-27 | Engine lubrication system and car |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219809056U (en) |
-
2022
- 2022-09-27 CN CN202222568090.7U patent/CN219809056U/en active Active
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