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Oil pump performance test loop

A technology for testing loops and oil pumps, which is applied in fluid pressure actuation system testing, fluid pressure actuation devices, mechanical equipment, etc., and can solve problems such as large steps, large time consumption, and increased detection errors of oil pump volumetric efficiency

Inactive Publication Date: 2019-01-25
ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

And every time the speed is changed, the outlet pressure needs to be readjusted. This process not only takes a lot of time, but also the result of the detected data is a point value with a large step size, which is easy to increase the detection error of the volumetric efficiency of the oil pump.

Method used

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  • Oil pump performance test loop

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Embodiment Construction

[0030] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that the relative arrangements of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.

[0031] The following description of at least one exemplary embodiment is merely illustrative in nature and in no way taken as limiting the invention, its application or uses.

[0032] Techniques, methods and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, such techniques, methods and devices should be considered part of the description.

[0033] In all examples shown and discussed herein, any specific values ​​should be construed as exemplary only, and not as limitations. Therefore, other instances of the exemplary embodiment may have dif...

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Abstract

The invention discloses an oil pump performance test loop which comprises an oil pump, a pressure control valve, a slide valve and a first oil return tank. The pressure control valve is provided witha control valve oil inlet, a control valve oil outlet and a control valve oil return port, and the pressure control valve is an electromagnetic valve; the slide valve is provided with a slide valve oil inlet, a slide valve first oil outlet, a slide valve second oil outlet, a communication hole and a feedback hole; the control valve oil inlet, the slide valve oil inlet and a feedback hole are connected with the oil pump through pipelines; the control valve oil inlet and the slide valve oil inlet are formed in parallel, and the control valve oil outlet is communicated with the communication holethrough a pipeline; the control valve oil return port, the slide valve first oil outlet and the slide valve second oil outlet are connected with the first oil return tank through pipelines. The oil pump performance test loop can be used for adjusting the oil pressure of the slide valve oil inlet of the slide valve by adjusting the pressure of the control valve oil outlet of the pressure control valve, and the outlet pressure of the oil pump is adjusted.

Description

technical field [0001] The invention relates to the field of oil pump performance testing, and more particularly relates to an oil pump performance testing circuit. Background technique [0002] The oil pump is an important power source in the hydraulic system, and the performance of the oil pump plays an important role in the normal operation of the hydraulic system. Regardless of the type of oil pump, it needs to be tested for its performance before application. Volumetric efficiency refers to the ratio of the actual output flow to the theoretical output flow when the oil pump is working, which is one of the most important performances of the oil pump. Since the volumetric efficiency of the oil pump is very different under different oil temperature, speed and outlet pressure conditions, it is necessary to continuously adjust the oil temperature, speed and outlet pressure of the oil pump during the detection process of the volumetric efficiency. [0003] The adjustment of...

Claims

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Application Information

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IPC IPC(8): F15B19/00
CPCF15B19/00
Inventor 徐诚杨士先张保良王中华姚萌
Owner ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD
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