|국가/구분||United States(US) Patent 등록|
|발명자 / 주소|
|출원인 / 주소|
|대리인 / 주소||
|인용정보||피인용 횟수 : 14 인용 특허 : 10|
A fuel system for a gas turbine engine that utilizes a centrifugal pump is presented. The system includes a fuel metering valve that is adapted to set a metered flow of fuel, and a throttle valve that is adapted to accurately control pressure drop across the fuel metering valve. The throttle valve has at least two variable orifices and a compensation chamber between the variable orifices. The throttle valve includes a differential valve piston slidable in a valve body. The differential valve piston comprises working surfaces of at least two different dia...
What is claimed is: 1. A fuel metering unit for a fuel system for regulating fuel flow in a gas turbine engine pumped by a high pressure centrifugal pump and delivered to a nozzle outlet passage, the fuel metering unit comprising: a fuel metering valve and a throttle valve arranged in fluid series, the throttle valve having a valve body, a double diameter valve member and at least two variable orifices, the valve member being movable in the valve body to vary the size of the variable orifices, the variable orifices arranged in fluidic series with a comp...