CN117869036A - Full-variable engine oil pump of engine - Google Patents
Full-variable engine oil pump of engine Download PDFInfo
- Publication number
- CN117869036A CN117869036A CN202410210223.4A CN202410210223A CN117869036A CN 117869036 A CN117869036 A CN 117869036A CN 202410210223 A CN202410210223 A CN 202410210223A CN 117869036 A CN117869036 A CN 117869036A
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- Prior art keywords
- pump
- engine
- pump body
- sliding block
- oil
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- 239000010705 motor oil Substances 0.000 title abstract description 23
- 230000005540 biological transmission Effects 0.000 claims abstract description 20
- 239000003921 oil Substances 0.000 abstract description 42
- 239000000446 fuel Substances 0.000 abstract description 4
- 230000001050 lubricating effect Effects 0.000 description 2
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Details And Applications Of Rotary Liquid Pumps (AREA)
Abstract
An engine full-variable oil pump belongs to the technical field of engine power systems. The slider is as the stator setting in the pump chamber and the suit is in the rotor outside, and the slider can rotate around the swivel pin and install on the pump body, is equipped with precompressed spring between the one end that the swivel pin was kept away from to the slider and the pump body, and the initial position of slider is by the elasticity top of slider spring to the maximum eccentric volume, proportional solenoid valve installs on the feedback oil way that is equipped with on the pump body, through adjusting the engine oil pressure and the flow in the proportional solenoid valve duty cycle control feedback oil way to control the eccentric volume of slider and transmission shaft. The invention changes the pressure and flow of the feedback oil way by adjusting the duty ratio of the proportional electromagnetic valve on the feedback oil way of the oil pump, thereby controlling the eccentric amount of the transmission shaft and the sliding block, being capable of actively controlling the lowest engine oil pressure and flow which meet the working requirement of the engine, eliminating the excessive load of the excessive engine oil pressure and flow on the crankshaft of the engine, improving the performance of the engine and saving the fuel.
Description
Technical Field
The invention belongs to the technical field of engine power systems, and particularly relates to an engine full-variable oil pump.
Background
As the heart of the engine lubricating system, the oil pump plays a key role in the engine lubricating system, so that the energy loss of the oil pump is reduced to the minimum level, the performance of the engine can be effectively improved, and the fuel is saved.
Therefore, providing an oil pump capable of meeting the minimum oil pressure and flow required by the engine operation is a technical problem to be solved by those skilled in the art.
Disclosure of Invention
The invention aims to solve the problems, and further provides the full-variable engine oil pump which can meet the minimum engine oil pressure and flow required by the working of the engine, eliminate excessive load of excessive engine oil pressure and flow on a crankshaft of the engine, improve the performance of the engine and save fuel.
The technical scheme adopted by the invention is as follows:
an engine full-variable oil pump comprises a pump cover, a pump body, a transmission shaft, blades, springs, sliding blocks, rotating pins and a proportional electromagnetic valve; the pump cover and the pump body are installed relatively and form a pump cavity, the transmission shaft is installed in the pump cavity in a rotating mode, blades serving as rotors are uniformly distributed on the outer surface of the transmission shaft, the sliding block serving as a stator is arranged in the pump cavity and sleeved on the outer side of the rotors, the sliding block can be installed on the pump body in a rotating mode around the rotating pin, a precompressed spring is arranged between one end, away from the rotating pin, of the sliding block and the pump body, the initial position of the sliding block is jacked to the maximum eccentric amount by the elastic force of the sliding block spring, the proportional electromagnetic valve is installed on a feedback oil path arranged on the pump body, and oil pressure and flow in the feedback oil path are controlled by adjusting the duty ratio of the proportional electromagnetic valve, so that the eccentric amount of the sliding block and the transmission shaft is controlled.
Compared with the prior art, the invention has the following beneficial effects:
the invention changes the pressure and flow of the feedback oil way by adjusting the duty ratio of the proportional electromagnetic valve on the feedback oil way of the oil pump, thereby controlling the eccentric amount of the transmission shaft and the sliding block, being capable of actively controlling the lowest engine oil pressure and flow which meet the working requirement of the engine, eliminating the excessive load of the excessive engine oil pressure and flow on the crankshaft of the engine, improving the performance of the engine and saving the fuel.
Drawings
FIG. 1 is an exploded view of the present invention;
wherein: 1. a sprocket; 2. an internal hexagonal flower type pan head screw; 3. a pump cover; 5. a transmission shaft; 6. a blade; 7. a spring; 8. a slide block; 9. a rotation pin; 11. a pump body; 12. an arc-shaped groove; 13. a bump; 14. a strainer assembly; 20. a proportional solenoid valve.
Detailed Description
For a better understanding of the objects, structures and functions of the present invention, reference should be made to the following detailed description of the invention with reference to the accompanying drawings.
As shown in fig. 1, the invention provides a 2.0T engine full variable oil pump, which comprises a pump cover 3, a pump body 11, a transmission shaft 5, blades 6, springs 7, a sliding block 8, a rotating pin 9 and a proportional electromagnetic valve 20; the pump cover 3 and the pump body 11 are installed relatively to form a pump cavity, the transmission shaft 5 is installed in the pump cavity in a rotating mode, blades 6 serving as rotors are uniformly distributed on the outer surface of the transmission shaft 5, the sliding block 8 serving as a stator is arranged in the pump cavity and sleeved on the outer side of the rotors, the sliding block 8 can be installed on the pump body 11 in a rotating mode around the rotating pin 9, a precompressed spring 7 is arranged between one end, far away from the rotating pin 9, of the sliding block 8 and the pump body 11, the initial position of the sliding block 8 is jacked to the maximum eccentric value by the elastic force of the spring 7, the proportional electromagnetic valve 20 is installed on a feedback oil path arranged on the pump body 11, and oil pressure and flow in the feedback oil path are controlled by adjusting the duty ratio of the proportional electromagnetic valve 20, so that the eccentric value of the sliding block 8 and the transmission shaft 5 is controlled.
The outer surface of the pump body 11 is provided with an arc groove 12 along the axial direction, the inner wall of the pump body 11 is fixed with a rotating pin 9 at the position corresponding to the arc groove 12, and the pump body 11 is rotationally sleeved on the rotating pin 9 through the arc groove 12, so that the pump body 11 can rotate around the rotating pin 9.
The slider 8 is kept away from the one end of swivel pin 9 and is equipped with lug 13, offer the cavity that holds spring 7 on the pump body 11, spring 7 one end is connected with lug 13, and the spring 7 other end is connected with pump body 11.
The outer end of the pump cover 3 is provided with a chain wheel 1, and the pump cover 3 is connected with the pump body 11 through an inner hexagonal disc head screw 2.
The pump body 11 is provided with a strainer assembly 14.
According to the invention, the eccentric amount of the sliding block 8 and the transmission shaft 5 is changed by controlling the sliding block 8 to rotate around the rotating pin 9, so that the pressure and the flow of the engine oil pumped by the engine oil pump are adjusted, and the greater the eccentric amount is, the greater the pressure and the flow of the engine oil pumped by the engine oil pump are. The initial position of the sliding block 8 is pushed to the maximum eccentric amount by the elastic force of the sliding block spring 7, and engine oil in the corresponding position of the feedback oil path can provide the reverse acting force of the sliding block 8. The proportional solenoid valve 20 is installed at a position corresponding to the feedback oil passage, and the oil pressure and flow rate in the position corresponding to the feedback oil passage are controlled by adjusting the duty ratio of the proportional solenoid valve 20, thereby controlling the eccentric amount of the slider 8 and the drive shaft 5. When the engine speed is low, the large eccentric amount can ensure the supply of the engine oil pressure and flow. Because the oil pump is hung on the main shaft of the engine through the chain, when the rotating speed of the engine is higher, the rotating speed of the oil pump is increased, so that the pressure and the flow of the engine oil are increased, the duty ratio of the proportional electromagnetic valve 20 is increased, the pressure and the flow of the engine oil at the corresponding position of the feedback oil path are increased, the eccentric amount of the transmission shaft 5 and the sliding block 8 is reduced, the pressure and the flow of the engine oil pumped by the oil pump can be reduced, and the excessive load of the excessive pressure and the flow of the engine oil on the crankshaft of the engine is eliminated.
The engine oil pump is fixed below the cylinder body by adopting 4M 8 screws;
the engine oil pump is externally hung on the main shaft of the engine through a chain in a transmission way;
the proportional solenoid valve 20 is adopted to control the pressure and flow of the engine oil of the feedback oil way, and the proportional solenoid valve 20 is horizontally arranged;
the oil pump chain guide rail assembly is arranged on the oil pump;
the strainer assembly 14 is formed by welding plastic parts;
the corresponding position of the oil outlet of the oil pump is in butt joint with an oil filter port on the oil pan;
single rotation displacement of oil pump: 24.3mL/r;
oil pump sprocket to spindle sprocket tooth ratio = 25:23;
diameter of oil inlet: phi 25mm;
diameter of oil outlet: phi 14mm, and a long round hole with a circle center distance of 8 mm;
diameter of feedback oil path: phi 5mm;
rotor thickness: 25mm;
outer diameter of transmission shaft part: phi 43.2mm;
the inner diameter of the slide block 8: phi 51mm.
It will be understood that the invention has been described in terms of several embodiments, and that various changes and equivalents may be made to these features and embodiments by those skilled in the art without departing from the spirit and scope of the invention. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from the essential scope thereof. Therefore, it is intended that the invention not be limited to the particular embodiment disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.
Claims (5)
1. An engine full-variable oil pump is characterized in that: the device comprises a pump cover (3), a pump body (11), a transmission shaft (5), blades (6), springs (7), a sliding block (8), a rotating pin (9) and a proportional electromagnetic valve (20); the pump cover (3) and the pump body (11) are installed relatively and form a pump cavity, the transmission shaft (5) is installed in the pump cavity in a rotating mode, blades (6) serving as rotors are evenly distributed on the outer surface of the transmission shaft (5), the sliding block (8) serving as a stator is arranged in the pump cavity and sleeved outside the rotors, the sliding block (8) can be installed on the pump body (11) in a rotating mode around the rotating pin (9), a precompression spring (7) is arranged between one end, away from the rotating pin (9), of the sliding block (8) and the pump body (11), the initial position of the sliding block (8) is jacked to the maximum eccentric amount by the elastic force of the spring (7), and the proportional electromagnetic valve (20) is installed on a feedback oil path arranged on the pump body (11) and used for controlling the oil pressure and flow in the feedback oil path through adjusting the duty ratio of the proportional electromagnetic valve (20), so that the eccentric amount of the sliding block (8) and the transmission shaft (5) is controlled.
2. The engine all-variable oil pump of claim 1, wherein: the outer surface of the pump body (11) is provided with an arc groove (12) along the axial direction of the outer surface, a rotating pin (9) is fixed on the inner wall of the pump body (11) at the position corresponding to the arc groove (12), and the pump body (11) is rotationally sleeved on the rotating pin (9) through the arc groove (12), so that the pump body (11) can rotate around the rotating pin (9).
3. The engine all-variable oil pump of claim 2, wherein: one end of the sliding block (8) far away from the rotating pin (9) is provided with a bump (13), a cavity for accommodating the spring (7) is formed in the pump body (11), one end of the spring (7) is connected with the bump (13), and the other end of the spring (7) is connected with the pump body (11).
4. The engine all-variable oil pump of claim 1, wherein: the outer end of the pump cover (3) is provided with a chain wheel (1), and the pump cover (3) is connected with the pump body (11) through an inner hexagonal flower type pan head screw (2).
5. The engine all-variable oil pump of claim 4, wherein: a strainer assembly (14) is mounted on the pump body (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410210223.4A CN117869036A (en) | 2024-02-26 | 2024-02-26 | Full-variable engine oil pump of engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410210223.4A CN117869036A (en) | 2024-02-26 | 2024-02-26 | Full-variable engine oil pump of engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117869036A true CN117869036A (en) | 2024-04-12 |
Family
ID=90577732
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410210223.4A Pending CN117869036A (en) | 2024-02-26 | 2024-02-26 | Full-variable engine oil pump of engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117869036A (en) |
-
2024
- 2024-02-26 CN CN202410210223.4A patent/CN117869036A/en active Pending
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