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    • 75. 发明申请
    • VALVE ASSEMBLY WITH OIL SHUT-OFF VALVE
    • 阀组件与油分离阀
    • US20160369694A1
    • 2016-12-22
    • US14743258
    • 2015-06-18
    • PRATT & WHITNEY CANADA CORP.
    • Charles FAUBERTJohnny VINSKIValeri SOUKHOSTAVETS
    • F02C7/06F16K3/32F16K3/02F16K17/02F16K31/12
    • F02C7/06F16K3/029F16K3/26F16K3/32F16K17/02F16K31/12F16K31/1221F16K31/1225F16K31/1226
    • A gas turbine engine valve assembly having an oil shut-off valve and a compensating valve fluidly connected thereto. The compensating valve, in a first position, restricts access to a pressure-reducing oil flow path leading to an oil reservoir, and in a second position, provides access to the pressure-reducing oil flow path. The pressure-reducing oil flow path is defined by fluid flow between housing apertures, a laminar hole and an orifice. The valve assembly is operable between a first configuration, wherein the oil shut-off valve is in a fluid transfer position and a piston of the compensating valve is in a closed position to direct oil toward the engine component, and a second configuration, wherein the oil shut-off valve is in the shut-off position and the piston is in a open position to direct oil toward the oil reservoir via the pressure-reducing oil flow path.
    • 一种燃气涡轮发动机气门组件,其具有与其流体连接的油切断阀和补偿阀。 补偿阀处于第一位置,限制通向通向储油器的减压油流通道,并且在第二位置提供进入减压油流动路径的通路。 减压油流动路径由壳体孔,层流孔和孔之间的流体流动限定。 阀组件可在第一构造和第二构造之间操作,第一构造,其中油切断阀处于流体传递位置,并且补偿阀的活塞处于关闭位置以将油引向发动机部件,以及第二构造, 油关闭阀处于关闭位置,并且活塞处于打开位置,以通过减压油流动路径将油引导到储油器。