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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 9745724 B1

PDFFull Text
Date of Patent:
Aug. 29, 2017

Filed:

Aug. 05, 2015

Pressure compensation valve

Applicant:

Jiangsu Hengli Hydraulic Co., Ltd, Changzhou, Jiangsu, CN;

Inventors:

Liping Wang, Jiangsu, CN;

Caifu Yuan, Jiangsu, CN;

Qiang Lu, Jiangsu, CN;

Zhan Chen, Jiangsu, CN;

Hongguang Liu, Jiangsu, CN;

Assignee:

JIANGSU HENGLI HYDRAULIC CO., LTD, Changzhou, CN;

Attorney:
Primary Examiner:

R K Arundale

Int. Cl.
CPC ...
F16K 31/12 (2006.01); E02F 9/22 (2006.01); F16K 1/30 (2006.01); F16K 1/52 (2006.01); F16K 15/18 (2006.01); F16K 31/122 (2006.01); F15B 13/02 (2006.01); F15B 13/01 (2006.01); F15B 13/04 (2006.01);
U.S. Cl.
CPC ...
E02F 9/2225 (2013.01); E02F 9/2267 (2013.01); F15B 13/026 (2013.01); F16K 1/307 (2013.01); F16K 1/526 (2013.01); F16K 15/18 (2013.01); F16K 31/1221 (2013.01); F15B 13/01 (2013.01); F15B 13/0405 (2013.01); F15B 2211/6052 (2013.01); Y10T 137/7762 (2015.04); Y10T 137/7764 (2015.04); Y10T 137/7842 (2015.04);
Abstract

A pressure compensation valve comprises a valve body, a valve sleeve fixedly mounted on the valve body, and a spool disposed in a valve hole of the valve body and capable of moving. The pressure compensation valve can change the pressure compensation characteristic, that is, the pressure compensation valve can change the difficult degree of the pressurized oil liquid flowing by changing an effective pressure acting surface of the pressure compensation valve The structure is simple, requires low cost, and increases the utilization rate of a product.

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