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A variable displacement double-acting radial piston pump

A double-acting, radial column technology, applied to rotary piston pumps, rotary piston/oscillating piston pump components, pumps, etc., can solve the problem of small pulsation rate, large flow, and limited double-acting radial piston pumps Issues such as scope of use

Active Publication Date: 2020-07-07
ANHUI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The above-mentioned double-acting radial piston pump has the advantages of large flow rate and small pulsation rate. However, due to the structural characteristics of the rotor and stator of the double-acting radial piston pump, it is generally only used as a quantitative pump. When it is necessary to change the displacement Usually, the pump needs to be replaced, which greatly limits the scope of use of double-acting radial piston pumps

Method used

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  • A variable displacement double-acting radial piston pump
  • A variable displacement double-acting radial piston pump
  • A variable displacement double-acting radial piston pump

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Embodiment Construction

[0024] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments and illustrations.

[0025] The variable radial piston pump is composed of a housing 1, a shrinking elliptical stator 2, a rotor mechanism 3, a distribution shaft 4, an axial adjustment ring 5, and an end cover 6. The shrinking elliptical stator 2 is installed in the shell In the body 1, the rotor mechanism 3 and the shrinking elliptical surface stator 2 are coaxially installed in the housing 1, and the axial adjustment ring 5 is installed in the housing 1 through the fixing groove 1-2 on the housing 1 On the outside, the distribution shaft 4 is fixed on the end cover 6 through interference fit, the bottom of the distribution shaft 4 is connected and installed with the rotor mechanism 3 through a transition fit, and the end cover 6 and the housin...

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Abstract

The invention relates to a variable double-acting radial plunger pump which comprises a shell, a contraction ellipsoid stator, an axial adjusting ring, a rotor mechanism, a flow distribution shaft andan end cover. According to the variable double-acting radial plunger pump, a fixed stator with an inner curve surface as an ellipsoid in a traditional double-acting radial plunger pump is designed tobe the contraction ellipsoid stator with an inner curve surface as a contraction ellipsoid and capable of moving axially, and the axial movement of the contraction ellipsoid stator is adjusted, so that the aim of adjusting the displacement of the double-acting radial plunger pump is achieved. The pump has the characteristics of high flow, small pulsation coefficient, balanced radial force and capability of adjusting the displacement.

Description

technical field [0001] The invention relates to a radial plunger pump in a hydraulic system, in particular to a double-acting radial plunger pump capable of adjusting displacement and its working principle. Background technique [0002] Among various types of positive displacement oil pumps, radial piston pumps are widely used in the hydraulic field. Radial piston pumps are divided into single-acting pumps and double-acting pumps. The inner surface of the stator of single-acting radial piston pumps is The circular shape controls the eccentricity of the rotor. The single-acting radial piston pump can be used as a variable displacement pump. The inner surface of the stator of the double-acting radial piston pump is elliptical, and the rotor is fixed and located in the center of the ellipse. [0003] The patent application number is CN200410073371.9, which is a double-acting radial piston pump suitable for high pressure and large flow occasions. The specific content is: its mec...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04C2/344F04C14/00F04C15/00
Inventor 朱增宝徐瑞
Owner ANHUI UNIV OF SCI & TECH
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