CN210217856U - Feedback control oil way of variable-displacement oil pump - Google Patents
Feedback control oil way of variable-displacement oil pump Download PDFInfo
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- CN210217856U CN210217856U CN201920863720.9U CN201920863720U CN210217856U CN 210217856 U CN210217856 U CN 210217856U CN 201920863720 U CN201920863720 U CN 201920863720U CN 210217856 U CN210217856 U CN 210217856U
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- oil
- control valve
- feedback
- hole
- mounting hole
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Abstract
The utility model discloses variable displacement oil pump feedback control oil circuit, including the machine oil pressure control valve, the control valve mounting hole, oil pressure feedback oil duct, the control valve mounting hole sets up and leans on the bottom position at the machine oil pump, oil pressure feedback oil duct sets up in control valve mounting hole one side, oil pressure feedback oil duct outside and the inboard intercommunication of control valve mounting hole, the inboard pressure control chamber with the machine oil pump is connected, the machine oil pump passes through bolt fixed connection and is located the oil pan inboard in the crankcase bottom, the oil pan corresponds position department at the control valve mounting hole and is equipped with the through-hole, oil pan through-hole outside surface is equipped with control valve installation face, the machine oil pressure control valve is installed on the control valve installation face on oil pan through-hole outside surface, the through-hole that the case of machine oil pressure control. The utility model discloses compact structure, feedback oil duct processing are simple, shorten feedback oil duct, elevator oil pressure feedback's response speed.
Description
Technical Field
The utility model relates to the technical field of engines, in particular to variable displacement oil pump feedback control oil circuit.
Background
With the increasing tightening of national oil consumption and emission regulations, various internal combustion engine main engine factories develop new energy-saving and emission-reducing engine technologies, and in the process of developing high-efficiency engines, a plurality of excellent engines adopt variable-displacement oil pumps, the variable-displacement oil pumps can adjust the oil supply capacity of the oil pumps according to the actual requirements of the engines, reduce the unnecessary capacity loss of the oil pumps, and achieve the effect of saving oil.
When the engine works, the oil pressure control valve receives an ECU signal, controls the oil way pressure and feeds the oil way pressure back to the oil pump, and the oil pump outputs corresponding oil pressure according to the requirement. Fig. 1 shows a feedback control oil path of a conventional engine variable displacement oil pump, wherein in fig. 1: 1-crankcase, 2-crankcase mounting plane, 3-engine oil pressure control valve, 4-engine oil pressure feedback oil passage, 5-engine oil pump. The oil pump body is provided with an oil duct, the oil pump is arranged at the bottom end of the crankcase, the oil duct extends to a mounting plane of the crankcase, an oil pressure control valve mounting hole is formed in the crankcase, the oil duct is machined to the mounting plane, and the oil duct is communicated with the oil duct of the oil pump to jointly form an oil pressure feedback oil duct. The prior art has the following disadvantages: the feedback control oil duct of the variable displacement oil pump consists of the oil pump and a crankcase oil duct, the feedback oil duct is long, the design and the processing complexity are high, the space arrangement is not compact enough, the matching surface of the oil pump and the crankcase oil duct has the surface sealing requirement, the processing precision requirement is high, meanwhile, the oil duct is too long, the pressure feedback responsiveness of the oil pump is slowed, and the requirements of miniaturization and light weight of the whole machine cannot be met.
Disclosure of Invention
The utility model aims at the defect that above-mentioned prior art exists, provide a variable displacement oil pump feedback control oil circuit, compact structure, feedback oil duct processing are simple, make the oil duct design of crankcase simple simultaneously, reduce and arrange the space, shorten feedback oil duct, elevator oil pressure feedback's response speed.
The utility model discloses a realize that the technical scheme that above-mentioned purpose adopted is: a feedback control oil path of a variable displacement oil pump comprises an oil pressure control valve and a control valve mounting hole, the oil pressure feedback oil duct, the control valve mounting hole sets up and leans on the bottom position at the oil pump, oil pressure feedback oil duct sets up in control valve mounting hole one side, the oil pressure feedback oil duct outside communicates with the control valve mounting hole inboard, the oil pressure feedback oil duct inboard is connected with the pressure control chamber of oil pump, the oil pump passes through bolt fixed connection and is located the oil pan inboard in the crankcase bottom, the oil pan is equipped with the through-hole in the control valve mounting hole department that corresponds the position, oil pan through-hole outside surface is equipped with the control valve installation face, be equipped with the sealing washer recess on the control valve installation face, the oil pressure control valve is installed on the control valve installation face of oil pan through-hole outside surface, the through-hole that the case of oil.
The utility model discloses a further technical scheme is: and an oil pump oil drainage hole is formed in the lower side of the oil pressure feedback oil duct.
The utility model discloses variable displacement oil pump feedback control oil circuit has following beneficial effect:
1. the oil pump has compact structure after adopting the feedback control oil path of the variable displacement oil pump, the oil pressure feedback oil path is connected to the crankcase without lengthening the oil pressure feedback oil path, the mounting hole of the oil pressure control valve is directly designed on the oil pump, the oil pressure feedback oil path is shortened, and the feedback speed of the oil pressure and the response speed of the elevator oil pump are improved;
2. the installation hole and the feedback oil duct of the engine oil pressure control valve which are complex to machine are not required to be designed and machined on the crankcase, the overall design complexity and machining cost of the oil duct of the crankcase are reduced, the compactness of the engine is improved, and meanwhile, the arrangement space of the oil duct is also reduced.
The feedback control oil circuit of the variable displacement oil pump of the present invention will be further described with reference to the accompanying drawings and embodiments.
Drawings
FIG. 1 is a schematic diagram of a feedback control oil path of a variable displacement oil pump in the prior art;
FIG. 2 is a schematic structural diagram of a feedback control oil path of the variable displacement oil pump of the present invention;
the reference numbers illustrate: 1-a crankcase, 2-a crankcase mounting plane, 3-an engine oil pressure control valve, 4-an engine oil pressure feedback oil passage, 5-an engine oil pump, 6-a hexagon flange bolt, 7-a sealing ring groove, 8-a control valve mounting surface, 9-a valve core, 10-a control valve mounting hole, 11-an oil pressure feedback oil passage, 12-an oil drainage hole, 13-an oil pan and 14-a through hole.
Detailed Description
As shown in fig. 2, the utility model discloses variable displacement oil pump feedback control oil circuit, including machine oil pressure control valve 3, control valve mounting hole 10, oil pressure feedback oil duct 11. The control valve mounting hole 10 is arranged near the bottom end of the engine oil pump 5, and one end of the control valve mounting hole 10 is exposed out of the surface of the bottom end shell of the engine oil pump 5. The oil pressure feedback oil channel 11 is arranged on one side of the control valve mounting hole 10, the outer side of the oil pressure feedback oil channel 11 is communicated with the inner side of the control valve mounting hole 10, the inner side of the oil pressure feedback oil channel 11 is connected with a pressure control cavity of the oil pump 5, and an oil drain hole 12 of the oil pump 5 is formed in the lower side of the oil pressure feedback oil channel 11. The oil pump 5 is fixedly connected to the bottom end of the crankcase 1 and positioned on the inner side of the oil pan 13 through a hexagon flange bolt 6. The oil pan 13 is provided with a through hole 14 at a position corresponding to the control valve mounting hole 10, the outer side surface of the through hole 14 of the oil pan 13 is provided with a control valve mounting surface 8, and the control valve mounting surface 8 is provided with a sealing ring groove 7. The engine oil pressure control valve 3 is installed on a control valve installation surface 8 on the outer side surface of a through hole 14 of the oil pan 13, and an O-shaped sealing ring is arranged in a sealing ring groove 7. The spool 9 of the oil pressure control valve 3 is positioned in the control valve mounting hole 10 at the bottom end of the oil pump 5 through the through hole 14 of the oil pan 13.
When an engine ECU (electronic control Unit) gives a control signal to the engine oil pressure control valve 3, the valve core 9 of the engine oil pressure control valve 3 acts, the engine oil pressure in the control valve mounting hole 10 is fed back to the pressure control cavity of the engine oil pump 5 through the oil pressure feedback oil passage 11, so that the engine oil pump 5 changes the working mode under the feedback pressure and outputs the engine oil pressure and the engine oil flow according to the engine requirement.
The above embodiments are only preferred embodiments of the present invention, the structure of the present invention is not limited to the forms illustrated in the above embodiments, and any modifications, equivalent substitutions and the like made within the spirit and principle of the present invention should be included within the scope of the present invention.
Claims (2)
1. A feedback control oil circuit of a variable displacement oil pump is characterized by comprising an oil pressure control valve (3), a control valve mounting hole (10) and an oil pressure feedback oil channel (11), wherein the control valve mounting hole (10) is formed in the position, close to the bottom end, of the oil pump (5), the oil pressure feedback oil channel (11) is formed in one side of the control valve mounting hole (10), the outer side of the oil pressure feedback oil channel (11) is communicated with the inner side of the control valve mounting hole (10), the inner side of the oil pressure feedback oil channel (11) is connected with a pressure control cavity of the oil pump (5), the oil pump (5) is fixedly connected to the bottom end of a crankcase (1) through bolts and is positioned in an oil pan (13), a through hole (14) is formed in the oil pan (13) at the position corresponding to the control valve mounting hole (10), a control valve mounting surface (8) is arranged on the outer side surface of the through hole (, the engine oil pressure control valve (3) is installed on a control valve installation surface (8) on the outer side surface of a through hole of the oil pan, and a valve core (9) of the engine oil pressure control valve (3) penetrates through the through hole of the oil pan and is positioned in a control valve installation hole (10) at the bottom end of the engine oil pump (5).
2. The variable displacement oil pump feedback control oil way according to claim 1, characterized in that an oil drain hole (12) of the oil pump (5) is formed in the lower side of the oil pressure feedback oil passage (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920863720.9U CN210217856U (en) | 2019-06-10 | 2019-06-10 | Feedback control oil way of variable-displacement oil pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920863720.9U CN210217856U (en) | 2019-06-10 | 2019-06-10 | Feedback control oil way of variable-displacement oil pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210217856U true CN210217856U (en) | 2020-03-31 |
Family
ID=69930836
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920863720.9U Expired - Fee Related CN210217856U (en) | 2019-06-10 | 2019-06-10 | Feedback control oil way of variable-displacement oil pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210217856U (en) |
-
2019
- 2019-06-10 CN CN201920863720.9U patent/CN210217856U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200331 |