发明名称 |
Pilot operated servo valve |
摘要 |
A pilot-operated servo valve design for efficient mounting in a control block has at least three main-stream ports. An opening into a control sleeve for a first main-stream port is disposed opposite an end surface of a main control piston. The main control piston has a pressure-equalizing surface disposed in a pressure-equalizing chamber, which is fluidically coupled by a pressure-equalizing duct in the main control piston to the first main-stream port. A return spring urges the main control piston toward a first axial end stop to clearly define a safety position. The valve exhibits good dynamic properties.
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申请公布号 |
US5445188(A) |
申请公布日期 |
1995.08.29 |
申请号 |
US19940248146 |
申请日期 |
1994.05.24 |
申请人 |
HYDROLUX S.A.R.L. |
发明人 |
BOURKEL, ARSENE;LANFERMANN, BERND;TRATBERGER, KARL;POST, KARL H. |
分类号 |
F15B13/043;F15B13/04;F15B20/00;F16K11/07;F16K31/12;(IPC1-7):F15B13/043 |
主分类号 |
F15B13/043 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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