公开(公告)号：US06651441B2

公开(公告)日：2003-11-25

申请号：US10054480

申请日：2002-01-22

申请人： Charles Reuter ,  Gerald P. Dyer ,  Todd Haugsjaahabink ,  Satish Shah

发明人： Charles Reuter ,  Gerald P. Dyer ,  Todd Haugsjaahabink ,  Satish Shah

IPC分类号： F02C100

CPC分类号： F02C7/32 ,  F01D25/20 ,  F02C7/22 ,  F02C7/232 ,  F02C7/236 ,  Y02T50/671

摘要： A fluid flow system for a gas turbine engine provides combustion fuel to a main pump and an actuator pump significantly reducing heat generation at low flow demand, while regulating actuator flow temperature at high flow demand. Fuel flow from the actuator pump in excess of the actuators needs is directed through an actuator minimum pressure valve and into a thermal bypass valve (TBV.) Depending upon the temperature of the fuel, the TBV determines the path of the excess actuator pump fluid flow. The TBV divides the fuel flow between being recirculated to the actuator pump inlet and the main pump output flow path to the engine fuel input conduit. The engine actuators are thereby assured of receiving flow which preclude freezing of water entrained in the fuel. When there is minimal concern with the possibility of freezing water entrained in the fuel, the TBV passes a greater percentage of fuel through to join together in the engine fuel input conduit.

摘要翻译： 用于燃气涡轮发动机的流体流动系统向主泵和致动器泵提供燃烧燃料，其在低流量需求下显着减少发热，同时在高流量需求下调节致动器流量温度。 来自致动器泵的超过执行器需求的燃料流被引导通过致动器最小压力阀并进入热旁通阀（TBV）。根据燃料的温度，TBV确定过量致动器泵流体流动的路径 。 TBV将燃料流在再循环到致动器泵入口和主泵输出流路之间分配到发动机燃料输入管道。 因此，发动机致动器被确保接收流动，排除了夹带在燃料中的水的冻结。 当最少关注冻结在燃料中的水的可能性时，TBV通过更多百分比的燃料通过，以在发动机燃料输入管道中连接在一起。