CN201892019U - Internal discharge type safety valve rotor oil pump - Google Patents
Internal discharge type safety valve rotor oil pump Download PDFInfo
- Publication number
- CN201892019U CN201892019U CN2010206229859U CN201020622985U CN201892019U CN 201892019 U CN201892019 U CN 201892019U CN 2010206229859 U CN2010206229859 U CN 2010206229859U CN 201020622985 U CN201020622985 U CN 201020622985U CN 201892019 U CN201892019 U CN 201892019U
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- China
- Prior art keywords
- oil
- safety valve
- pump
- steel ball
- oil inlet
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- Expired - Fee Related
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- Details And Applications Of Rotary Liquid Pumps (AREA)
- Rotary Pumps (AREA)
Abstract
The utility model discloses an internal discharge type safety valve rotor oil pump, which includes a pump body, a pump cover, an outer rotor, an inner rotor, a transmission shaft and a safety valve; the valve cover is mounted on one side of the pump body, and an oil inlet cavity and an oil outlet cavity are arranged in the pump body; an oil inlet, an oil hole, a safety valve mounting cavity and an oil discharge hole are arranged in the pump cover; the safety valve includes a steel ball, a valve spring and a screw plug, wherein the screw plug is used for mounting the valve spring and the steel ball in the safety valve mounting cavity, and the steel ball is used for closing the upper opening part of the oil hole under the action of the valve spring so as to block the oil inlet and the oil discharge hole; the oil inlet is communicated with the oil hole and the oil outlet cavity; and the oil discharge hole is communicated with the safety valve mounting cavity and the oil inlet cavity. After the internally arranged oil discharge hole is adopted on the pump cover provided by the utility model, excess high-pressure oil is discharged into the oil inlet cavity and enters the second internal work for circulating, therefore, the invalid work of the oil pump and the power consumption of an engine are reduced, and the efficiency of the oil pump is improved; and the safety, the reliability and the service life of the oil pump are improved.
Description
Technical field
The utility model relates to a kind of rotor-type oil pump, particularly a kind of internal discharging type safety valve rotor engine oil pump.
Background technique
The safety valve of oil pump is a drainage decompression of bearing oil pump and oil duct inner high voltage oil, in order to the safe proper functioning of protection oil pump and oil supply system and oil duct annex and instrument.And during existing oil-pump safety valve work, its inner hyperpressure machine oil is in outside oil drainage hole is excreted to the basin of the oily end of motor.Its deficiency is: oil pump is the machine oil in the inhalation machine oil pump when high speed rotating, has expended certain power, and when ultrahigh pressure machine oil being excreted to oil end basin, it sucks the power that machine oil consumed and has just wasted, and causes the certain power loss.
The model utility content
Technical problem to be solved in the utility model is the deficiency that overcomes on the prior art, and provide a kind of internal discharging type safety valve rotor engine oil pump, change outside oil drainage hole into inside oil drainage hole, when producing high oil pressure, outwards drains high speed rotating the power loss that machine oil was caused to reduce oil pump, improve the oil pump working efficiency, improve Security, reliability and the working life of oil supply system.
The technological scheme that technical problem to be solved in the utility model adopted is:
Internal discharging type safety valve rotor engine oil pump comprises the pump housing, pump cover, external rotor, internal rotor, transmission shaft, safety valve; Described pump cover is installed in a side of the pump housing, is provided with oil suction chamber and goes out oil pocket in the described pump housing; In described pump cover, be provided with oil inlet hole, oilhole, safety valve installation cavity and oil drainage hole, described safety valve installation cavity and the coaxial setting of oilhole, the axis of oil inlet hole and oil drainage hole is vertical with the coaxial line of described safety valve installation cavity and oilhole; Described transmission shaft is installed in the bottom of the pump housing and pump cover, internal rotor is installed in the pump housing and is fixed on the transmission shaft, external rotor is installed in the pump housing and by internal rotor and drives, described safety valve comprises steel ball, valve spring and plug screw, plug screw is installed in valve spring and steel ball in the described safety valve installation cavity, described steel ball closes the upper oral part of oilhole under the effect of valve spring, to cut off described oil inlet hole and oil drainage hole, it is characterized in that, described oil inlet hole is communicated with described oilhole and goes out oil pocket, and described oil drainage hole is communicated with safety valve installation cavity and oil suction chamber.
Working principle of the present utility model is: high pressure machine oil is from the oilhole that goes out oil pocket, oil inlet hole and enter steel ball below the safety valve, after the force value of high-pressure oil reaches the value of setting, the pressure of high-pressure oil overcomes the resistance of valve spring and pushes steel ball open, high-pressure oil enters in the safety valve installation cavity immediately, and enter in the oil suction chamber by oil drainage hole, enter internal work circulation for the second time.
The utility model compared with prior art has following characteristics:
After adopting the oil drainage hole that inwardly is provided with on the pump cover of the present utility model, unnecessary high-pressure oil enters oil suction chamber, enters internal work circulation for the second time, has reduced the power loss of oil pump non-productive work and motor, has improved oil pump efficient; Security, reliability and the working life of oil pump have been improved.
Description of drawings
Fig. 1 is the structural representation of the utility model internal discharging type safety valve rotor engine oil pump.
Embodiment
For technological means, creation characteristic that the utility model is realized, reach purpose and effect is easy to understand, below in conjunction with concrete diagram, further set forth mode of execution of the present utility model.
As shown in Figure 1, internal discharging type safety valve rotor engine oil pump comprises the pump housing 1, pump cover 2, external rotor 3, internal rotor 4, transmission shaft 5, safety valve.Safety valve comprises steel ball 6, valve spring 7 and plug screw 8.
High pressure machine oil from go out oil pocket 12, oil inlet hole enters in the oilhole 22 of steel ball 6 belows the safety valve, after the force value of high-pressure oil reaches the value of setting, the pressure of high-pressure oil overcomes the resistance of valve spring 7 and pushes steel ball 6 open, high-pressure oil enters in the safety valve installation cavity 24 immediately, and enter in the oil suction chamber 11 by oil drainage hole 21, enter internal work circulation for the second time.
More than show and described basic principle of the present utility model and major character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; that describes in the foregoing description and the specification just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (1)
1. internal discharging type safety valve rotor engine oil pump comprises the pump housing, pump cover, external rotor, internal rotor, transmission shaft, safety valve; Described pump cover is installed in a side of the pump housing, is provided with oil suction chamber and goes out oil pocket in the described pump housing; In described pump cover, be provided with oil inlet hole, oilhole, safety valve installation cavity and oil drainage hole, described safety valve installation cavity and the coaxial setting of oilhole, the axis of oil inlet hole and oil drainage hole is vertical with the coaxial line of described safety valve installation cavity and oilhole; Described transmission shaft is installed in the bottom of the pump housing and pump cover, internal rotor is installed in the pump housing and is fixed on the transmission shaft, external rotor is installed in the pump housing and by internal rotor and drives, described safety valve comprises steel ball, valve spring and plug screw, plug screw is installed in valve spring and steel ball in the described safety valve installation cavity, described steel ball closes the upper oral part of oilhole under the effect of valve spring, to cut off described oil inlet hole and oil drainage hole, it is characterized in that, described oil inlet hole is communicated with described oilhole and goes out oil pocket, and described oil drainage hole is communicated with safety valve installation cavity and oil suction chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206229859U CN201892019U (en) | 2010-11-25 | 2010-11-25 | Internal discharge type safety valve rotor oil pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206229859U CN201892019U (en) | 2010-11-25 | 2010-11-25 | Internal discharge type safety valve rotor oil pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201892019U true CN201892019U (en) | 2011-07-06 |
Family
ID=44221495
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206229859U Expired - Fee Related CN201892019U (en) | 2010-11-25 | 2010-11-25 | Internal discharge type safety valve rotor oil pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201892019U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102927427A (en) * | 2012-10-23 | 2013-02-13 | 重庆赛特尔机械有限公司 | Automobile oil pump structure |
| CN103016940A (en) * | 2012-12-18 | 2013-04-03 | 中国人民解放军军事交通学院 | Vehicle energy-saving oil pump |
| CN103206325A (en) * | 2013-04-23 | 2013-07-17 | 成都恒高机械电子有限公司 | Fuel pump with safety valve |
-
2010
- 2010-11-25 CN CN2010206229859U patent/CN201892019U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102927427A (en) * | 2012-10-23 | 2013-02-13 | 重庆赛特尔机械有限公司 | Automobile oil pump structure |
| CN103016940A (en) * | 2012-12-18 | 2013-04-03 | 中国人民解放军军事交通学院 | Vehicle energy-saving oil pump |
| CN103206325A (en) * | 2013-04-23 | 2013-07-17 | 成都恒高机械电子有限公司 | Fuel pump with safety valve |
| CN103206325B (en) * | 2013-04-23 | 2015-11-11 | 成都恒高机械电子有限公司 | A kind of fuel pump with safety valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110706 Termination date: 20121125 |