发明名称 |
Combustor drain valve |
摘要 |
A system for draining fuel from the combustion chamber of a gas turbine engine in the event of a false start includes associated passageways and a straight through flow pilot air actuated poppet valve. The valve is normally open and actuated by the pilot air to close off the combustion chamber from the drain. A return spring biases the valve to open upon release of pilot air pressure acting on the valve. The valve housing has a piston section with a pilot air chamber and a section defining the passageways for the drain. The drain passageway extends along a straight path at an oblique angle to a piston axis along which a piston actuator moves in response to the return spring and/or the pilot air pressure. The valve also includes a position feedback system for detecting the state of the valve.
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申请公布号 |
US2005056000(A1) |
申请公布日期 |
2005.03.17 |
申请号 |
US20040891266 |
申请日期 |
2004.07.14 |
申请人 |
JANSEN HARVEY B.;SHIELDS DAVID K. |
发明人 |
JANSEN HARVEY B.;SHIELDS DAVID K. |
分类号 |
F02C7/232;(IPC1-7):F02C7/232 |
主分类号 |
F02C7/232 |
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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