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A Hydraulic Proportional Valve Block with Pressure Compensation

A pressure compensation and proportional valve block technology, applied in the field of hydraulic valves, can solve the problems of complex processing technology, high processing difficulty and high processing cost, and achieve the effect of simple processing technology, low processing cost and compact structure

Inactive Publication Date: 2018-03-06
青神格林维尔流体动力控制技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, most of the internal passages of the valve body of the proportional flow valve currently used are casted by castings, which is relatively difficult to process and requires relatively expensive machine tools and honing machines to process. The processing technology is complicated and the processing cost is high.

Method used

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  • A Hydraulic Proportional Valve Block with Pressure Compensation
  • A Hydraulic Proportional Valve Block with Pressure Compensation

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Embodiment Construction

[0019] The present invention will be further described below in conjunction with the accompanying drawings, but the protection scope of the present invention is not limited to the following description.

[0020] like figure 1 and figure 2 As shown, a hydraulic proportional valve block with pressure compensation includes a valve body 1, a pressure compensation valve 2, a flow control valve 3, a proportional pressure reducing valve 4 and a fixed value pressure reducing valve 5. The pressure compensation valve 2, the flow control valve 3, the proportional pressure reducing valve 4 and the fixed value pressure reducing valve 5 are all cartridge valves, the valve body 1 is provided with a plurality of installation slots, the pressure compensation valve 2 and the flow control valve The valve 3 is installed in the installation slot on the valve body 1, the proportional pressure reducing valve 4 is installed in the installation slot on the right side of the valve body 1, and the fix...

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Abstract

The invention relates to a hydraulic proportional valve block with a pressure compensation function. The hydraulic proportional valve block comprises a valve body (1), a pressure compensation valve (2), a flow control valve (3), a proportional pressure reduction valve (4) and a fixed value pressure reduction valve (5). Multiple installing slots are formed in the valve body (1). The pressure compensation valve (2), the flow control valve (3), the proportional pressure reduction valve (4) and the fixed value pressure reduction valve (5) are installed in the corresponding installing slots in the valve body (1). The valve body (1) is further provided with an oil inlet (6), an oil outlet (7) and a low-pressure oil return opening (8). The hydraulic proportional valve block has the advantages of being compact in structure, simple in processing technology, low in processing cost and the like.

Description

technical field [0001] The invention relates to the technical field of hydraulic valves, in particular to a hydraulic proportional valve block with pressure compensation. Background technique [0002] Flow valve is a common hydraulic component widely used in water systems that require flow control. In recent years, in order to improve the control accuracy of the hydraulic operating system and improve the performance of the executive machinery, more and more machines have begun to use hydraulic proportional flow control valves. However, most of the internal passages of the valve body of the proportional flow valve currently used are casted by castings, which is relatively difficult to process and requires relatively expensive machine tools and honing machines to process. The process is complicated and the process cost is high. Contents of the invention [0003] The object of the present invention is to overcome the disadvantages of the prior art, and provide a hydraulic pr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F15B13/02F16K27/00
CPCF15B13/02F15B13/023F15B13/026F16K27/00
Inventor 雷永志张龙飞
Owner 青神格林维尔流体动力控制技术有限公司
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