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Hydraulic energy source equipment

A technology of hydraulic energy and hydraulic source, applied in the field of hydraulic energy device and performance testing device of hydraulic components, can solve the problems of dry friction, burnout, inability to withstand ultra-high temperature and ultra-low temperature, etc., to reduce friction, simple structure and low cost Effect

Inactive Publication Date: 2004-12-15
BEIHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The gap between the friction pairs is very small, and when the oil film cannot be formed, dry friction will occur and even burn out, so this kind of pump cannot withstand ultra-high temperature and ultra-low temperature conditions

Method used

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  • Hydraulic energy source equipment
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  • Hydraulic energy source equipment

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Experimental program
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Embodiment Construction

[0020] The present invention will be further described in detail below in conjunction with the accompanying drawings.

[0021] exist figure 2 Among them, the upper high-temperature pump group is composed of the first high-temperature cylinder 1, two parallel-connected first oil inlet check valves 2, two parallel-connected first oil-out check valves 11, and the first normal-temperature drive cylinder 3. The two first oil inlet check valves 2 connected with the first high temperature cylinder 1 are connected to the oil supply tank 10 through pipelines, and the two first oil outlet check valves 11 connected with the first high temperature cylinder 1 are connected through pipelines. The output pipeline is connected to the oil return tank 9, and the test piece 6, the measuring point of the pressure sensor 13, and the contact point of the overflow valve 14 are arranged on this pipeline. The sealing ring used in the first high-temperature cylinder 1 is made of fluorine Plastic speci...

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Abstract

The invention discloses a kind of hydraulic equipment working under the ultra-temperature or low-temperature environment. It consists of two sets of high-temperature pump groups paralleled with each other. Each set consists of high-temperature cylinder, one-way oil-input valve, normal-temperature drive cylinder and one-way oil-output valve; the normal-temperature drive cylinder is linked with the proportion-commutating valve through the pine and with the normal-temperature hydraulic source through the other end of the pine; the piston of the high-temperature cylinder moves along with that of the normal-temperature drive cylinder and completes inputting and outputting oils.

Description

technical field [0001] The invention relates to a device for testing the performance of hydraulic components of a pump in a special working environment, and more particularly refers to a hydraulic energy device in a working environment with a temperature of -60°C to 160°C, which belongs to the field of fluid control technology . Background technique [0002] Hydraulic components are widely used in machinery, transportation, aerospace and other fields, and their performance can directly affect the quality and performance of the entire equipment. In order to ensure the reliability of its work in some harsh environments, some hydraulic components need to be tested in a special working environment, so it is necessary to provide and test equipment for this special working environment. For example, hydraulic components in the aerospace field are required to work stably with constant hydraulic pressure and hydraulic flow in high temperature (such as up to 16...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F15B19/00G01M13/00G01M99/00
Inventor 王占林裘丽华祁晓野李运华
Owner BEIHANG UNIV