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HYDRAULIC PRESSURE-REGULATING VALVE FOR CONSTRUCTION EQUIPMENT
专利权人:
Jin-Wook Kim
发明人:
Jin-Wook Kim
申请号:
US13641318
公开号:
US20130032233A1
申请日:
2010.05.17
申请国别(地区):
US
年份:
2013
代理人:
摘要:
hydraulic control valve for a construction machine is provided. The hydraulic control valve includes a boom spool slidingly coupled into a valve block to be shifted to control the hydraulic fluid supplied from a first hydraulic pump and a second hydraulic pump to the actuator and provided with an internal path, a supply path of the first hydraulic pump and a supply path of the second hydraulic pump which are formed to be vertically symmetrical about the boom spool, check valves elastically supported to open and close the supply path of the first hydraulic pump and the supply path of the second hydraulic pump, respectively, bridge paths formed to be horizontally and vertically symmetrical with respect to a path formed on a sliding surface of the valve block to supply the hydraulic fluid, cylinder paths supplying the hydraulic fluid from the first hydraulic pump to the actuator.
来源网站:
中国工程科技知识中心
来源网址:
http://www.ckcest.cn/home/

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