Rotor-type variable pump

A variable pump and rotor type technology, applied in the field of hydraulic pumps, can solve the problems of large space occupation, internal leakage, complex processing, etc., and achieve the effects of more space, lower processing costs, and easy overall structure

Active Publication Date: 2014-04-30
富奥泵业(湖北)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0010] The application provides a rotor type variable displacement pump to solve the pro

Method used

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  • Rotor-type variable pump
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  • Rotor-type variable pump

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Embodiment Construction

[0047] 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.

[0048] Figure 1 to Figure 3An embodiment of a rotor type variable displacement pump provided by the present application is shown. The rotor type variable pump of this embodiment is used in the automobile engine as the power part of the automobile lubrication system, so it is also called variable displacement oil pump in this embodiment, referred to as the variable pump, and the working medium therein is engine oil. Of course, the rotor type variable displacement pump provided in this application can also be applied...

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Abstract

The invention provides a rotor-type variable pump which comprises a pump body, a pump cover, an inner rotor and an outer rotor. The pump body and the pump cover enclose to form a rotor cavity and a pipeline structure. The pipeline structure comprises an inlet area and an outlet area which are located on two sides of the rotor cavity and not communicated with each other; at least one operation area provided with a sealed outline and alternatively communicated with the inlet area and the outlet area is arranged between the inner rotor and the outer rotor; a drive device drives the inner rotor to rotate around a central axis of the inner rotor through a drive shaft; the rotor-type variable pump further comprises an adjusting ring, a fixed-tooth section and an applying device; an adjusting-tooth section is arranged on the adjusting ring which deflects under the limitation of the fixed-tooth section and under the action of external force. Rotation of the adjusting ring is completed through a gear cooperation mode, a gear cooperation part of the adjusting ring only accounts for a small proportion of the periphery of the adjusting ring, while other positions are in simple circular surface contact, so that airtightness at the position of the adjusting ring can be easily guaranteed.

Description

technical field [0001] The application relates to a hydraulic pump, in particular to a rotor type 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 variable displacement pump can automatically adjust the displacement of the pump according to the pressure at the outlet end, thereby reducing energy loss and improving energy utilization while meeting the working requirements; at the same time, the pressure on the pump is reduced, thereby prolonging the service life of the oil pump. [0003] Variable displacement pump is the trend of technological development, and now there are many kinds of variable displacement pumps. [0004] Chinese invention patent specification CN102095068A discloses a "variable rotor oil pump regulated by a pulsator". The variable rotor oil pump consists of a pump body, a pump cover, a pulsator control rin...

Claims

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Application Information

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IPC IPC(8): F16N13/20
Inventor 李耀军
Owner 富奥泵业(湖北)有限公司
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