发明名称 |
Reverse flow fueldraulic valve |
摘要 |
A reverse flow valve for metering high pressure gaseous media, such as ignition media to the injectors of a scramjet engine in a hyerpsonic flight vehicle, has a metering member that moves parallel to the flow direction of the metered media and throttles the valve in a direction counter to the flow direction. This reduces side loading on the metering member and permits the use of a lighter and smaller actuating mechanism. The metering member can be a pintle having a uniquely configured pintle seat providing bubble tight shut off of the inlet flow without effecting the critical flow contour of the media. The pintle can be driven by a piston that is responsive to push-pull forces of pressurized drive fluid under servo control. The drive fluid is isolated from the gaseous media by a primary seal, which can be seated on the piston without deformation by a seal retainer. The drive fluid can be fuel diverted from the sustained combustion fuel system of the vehicle so that a separate hydraulic system is not required.
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申请公布号 |
US7913973(B1) |
申请公布日期 |
2011.03.29 |
申请号 |
US20070838110 |
申请日期 |
2007.08.13 |
申请人 |
JANSEN'S AIRCRAFT SYSTEMS CONTROLS, INC. |
发明人 |
JANSEN HARVEY B.;CALLEJA JOHN F.;WESTERN RICKIE P. |
分类号 |
F16K47/00 |
主分类号 |
F16K47/00 |
代理机构 |
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