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Blade variable pump

A variable displacement pump and vane technology, which is applied in the field of hydraulic pumps, can solve the problems of poor energy saving effect and low control precision of vane variable displacement pumps, and achieve good energy saving effect, excellent linearity and precise displacement control

Inactive Publication Date: 2016-03-30
DONGFENG MOTOR PUMP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] This application provides a vane variable pump to solve the technical problems of low control precision and poor energy saving effect of the vane variable pump in the prior art

Method used

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  • Blade variable pump
  • Blade variable pump
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Embodiment Construction

[0025] In the following description, numerous specific details are set forth in order to provide a thorough understanding of the application. However, the present application can be implemented in many other ways different from those described here, and those skilled in the art can make similar promotions without violating the connotation of the present application. Therefore, the present application is not limited by the specific implementation disclosed below.

[0026] Please refer to figure 1 as shown, figure 1 It is a structural schematic diagram of an embodiment of a variable vane pump provided by this application. Among them, the vane pump provided by the application includes: a pump body, a pump cover (not shown), a stator, a rotor, and blades arranged on the rotor; the pump body and the pump cover are enclosed to accommodate the stator , the cavity of the rotor and the blade, and the pipeline structure providing a path for the working medium. The pipeline structure i...

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Abstract

The invention provides a blade variable pump which comprises a pump body, a pump cover, a stator, a rotor and blades arranged on the rotor. A first control cavity body and a second control cavity body which are opposite to each other are formed in the inner wall of a cavity body. The two ends of the stator are provided with a first force bearing boss connected with the first control cavity body in a matched manner and a second force bearing boss connected with the second control cavity body in a matched manner. The area of a force bearing face of the second force bearing boss is smaller than that of the force bearing face of the first force bearing boss. The first control cavity body is communicated with a main oil way. The second control cavity body is connected with an oil pressure control element. At least one elastic element for providing elastic force for the stator through the first force bearing boss or the second force bearing boss is arranged. The stator can slide under the pressure control effect of the first control cavity body or the second control cavity in the linear direction of the first force bearing boss and the second force bearing boss, and the output displacement is fed back and adjusted, so that the output displacement is stable.

Description

technical field [0001] The present application relates to a hydraulic pump, in particular to a vane variable displacement pump. Background technique [0002] At present, the oil pump matched with the automobile engine has transitioned from the traditional quantitative pump to the variable pump. The traditional fixed-displacement oil pump is driven by the engine, and its displacement is set according to the working conditions of the engine. The oil supply of this vane pump increases linearly with the increase of the engine speed, and it is much higher than the actual lubrication demand of the engine after medium and high speeds. , resulting in a waste of energy consumption. The variable vane pump can automatically adjust the displacement of the pump according to the pressure at the outlet end, realizes the oil supply according to the lubrication requirements of the whole machine, avoids the waste of energy consumption caused by excessive oil supply, achieves the purpose of e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16N13/20F16N23/00
Inventor 李耀军曹元璞赵贵红
Owner DONGFENG MOTOR PUMP CO LTD
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