发明公开
- 专利标题: PRESSURE BALANCE VALVE
- 专利标题(中): 压力水平VALVE
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申请号: EP95933205.0申请日: 1995-09-12
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公开(公告)号: EP0795088A1公开(公告)日: 1997-09-17
- 发明人: STURMAN, Oded, E. , MASSEY, Steven
- 申请人: Sturman, Oded E.
- 申请人地址: 3973 Santa Monica Court Newbury Park, CA 91320 US
- 专利权人: Sturman, Oded E.
- 当前专利权人: Sturman, Oded E.
- 当前专利权人地址: 3973 Santa Monica Court Newbury Park, CA 91320 US
- 代理机构: Wombwell, Francis, et al
- 优先权: US19940304879 19940913
- 国际公布: WO1996008656 19960321
- 主分类号: F16K11
- IPC分类号: F16K11 ; F15B13 ; F16K31
摘要:
A statically and dynamically pressure balanced fluid control valve (10). The valve (10) contains a spool (24) that is moved within an inner chamber (26) of a valve housing (28) by a pair of solenoids (34, 36). The ports are symmetrically located on each side of a center port (20), wherein the resultant fluid forces on the spool (24) are in opposite directions. The opposing forces create a net fluid force of approximately zero, so that the spool (24) is dynamically pressure balanced when the valve (10) is switched to a new position. The spool (24) also has an inner channel (40) and a pair of end openings (42) that are in fluid communication with the inner chamber (26) of the valve (10). When the spool (24) is pulled to a new position, the end openings (42) and inner channel (40) allow fluid within the inner chamber (26) to flow out of the space between the end of the spool (24) and the housing (28).
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