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Variable-displacement cycloid rotor pump

A cycloid rotor pump and variable displacement technology, which is applied to rotary piston pumps, pumps, and rotary piston/oscillating piston pump components, etc. Simple, large displacement range, and the effect of reducing production costs

Active Publication Date: 2015-11-11
XIANGTAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing variable pumps are mostly vane pumps and plunger pumps, which cannot meet the requirements of modern aircraft engine lubrication systems.

Method used

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  • Variable-displacement cycloid rotor pump
  • Variable-displacement cycloid rotor pump
  • Variable-displacement cycloid rotor pump

Examples

Experimental program
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Embodiment Construction

[0017] The present invention will be further described below in conjunction with accompanying drawing.

[0018] Such as Figure 1-4 As shown, the present invention includes a front cover 4, a rear cover 12, a pump casing 8, an outer rotor 7, an inner rotor 18, a sealed inner rotor 17, a sealed outer rotor 9, a variable disc 16 and a transmission shaft 14.

[0019] The inner wall of the pump casing 8 is provided with an oil suction chamber C and an oil pressure chamber E, the bottom of the oil suction chamber C is provided with an oil inlet D, and the bottom of the oil pressure chamber E is provided with an oil outlet F. The front cover 4 and the rear cover 12 are respectively installed at both ends of the pump casing 8; the outer rotor 7 and the sealed outer rotor 9 are installed in the pump casing 8, and the opposite end faces of the outer rotor 7 and the sealed outer rotor 9 are tightly sealed. Fitting, the outer rotor 7 is axially positioned through the variable disc 16, t...

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Abstract

The invention provides a variable-displacement cycloid rotor pump. The variable-displacement cycloid rotor pump comprises a front cover, a rear cover, a pump shell, an outer rotor, an inner rotor, a sealed outer rotor, a sealed inner rotor, a variable disk and a transmission shaft. The front cover and the rear cover are installed at the two ends of the pump shell respectively. The outer rotor and the sealed outer rotor are installed in the pump shell. The opposite end faces of the outer rotor and the sealed outer rotor are tightly attached to each other. The outer rotor is axially located through the variable disk. The sealed outer rotor is axially located through a friction plate. The inner rotor and the sealed inner rotor are installed in the outer rotor. The opposite end faces of the inner rotor and the sealed inner rotor are rightly attached to each other. The inner rotor is fixedly installed at the shaft end of the transmission shaft. The bottoms of toothed sockets of the outer rotor are provided with outer rotor oil channels. According to the variable-displacement cycloid rotor pump, the axial meshing width of multiple tooth space sealing volume is changed by adjusting the axial position of the variable disk through an adjusting bolt, and then the purpose of adjusting flow is achieved; and flow adjustment is convenient and easy. The variable-displacement cycloid rotor pump further has the beneficial effects of being small in size, low in cost and small in flow fluctuation.

Description

technical field [0001] The invention relates to a hydraulic transmission device, in particular to a cycloidal rotor pump with a wide range of variable displacement internal meshing. Background technique [0002] The cycloidal rotor pump is not only a commonly used hydraulic drive device, but also a commonly used hydraulic actuator to realize the conversion of hydraulic energy into mechanical energy. The cycloidal rotor pump has the advantages of compact structure, small size, stable operation, high unit power density, high efficiency, low pulsation rate, and wide speed range, so it has been widely used. [0003] Aerospace technology is the main symbol of modern and future civilization, plays a leading and promoting role in science and technology in many fields, and is also a concentrated expression of a country's scientific and technological level and comprehensive national strength. Aeroengines are the core components of airplanes and other aircraft, and the lubrication sy...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04C2/10F04C14/18F04C15/00
Inventor 刘金刚王平李明富吴继春
Owner XIANGTAN UNIV
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