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    • 7. 发明申请
    • FUEL DIVIDER AND ECOLOGY SYSTEM FOR A GAS TURBINE ENGINE
    • 燃气涡轮发动机燃油分配器和生态系统
    • WO01007766A1
    • 2001-02-01
    • PCT/US2000/019509
    • 2000-07-18
    • F02C7/228F02C7/232
    • F02C7/232F02C7/228F05D2260/602Y02T50/671Y10T137/86509
    • A fuel control system for supplying metered quantities of fuel from a fuel supply (11), through a fuel pump (13), a metering valve (15) and a pressurizing valve (17) to a plurality of engine fuel manifolds (31a, 31b, 33) includes an ecology valve (43) for withdrawing fuel from the fuel manifolds (31a, 31b, 33) during cessation of engine operation and for returning fuel to the fuel manifolds (31a, 31b, 33) to be burned during normal operation. The ecology valve (43) includes a valve housing (44) having a plurality of ecology ports (50, 52, 54) coupled to corresponding fuel manifolds (31a, 31b, 33) and a control port (46) connected to a corresponding control port (45) of the fuel pressurizing valve (17). A movable piston (63) within the valve housing (44) divides the interior of the valve housing (44) into a variable volume control chamber (71) coupled to the control port (46) and a variable volume fuel reservoir (55) which is selectively coupled to and uncoupled from the ports (50, 52, 54) by the piston (63). Fuel is withdrawn from the manifolds (31a, 31b, 33) seriatim. A fuel flow dividing arrangement is located intermediate the pressurizing valve (17) and the engine fuel manifolds (31a, 31b, 33) for distributing appropriately fuel flow among the manifolds and includes a concatenated pair of two-way splitter valves (39, 41) comprising a first splitter valve (39) distributing the fuel flow between an atomizer nozzle manifold (31b) and the remaining manifolds (31a, 33), and a second splitter valve (41) distributing down stream fuel flow from the first splitter valve (39) between upper and lower manifolds (31, 33).
    • 一种用于从燃料供应源(11)通过燃料泵(13),计量阀(15)和加压阀(17)向多个发动机燃料歧管(31a,31b)供应计量的燃料的燃料控制系统 ,33)包括用于在停止发动机操作期间从燃料歧管(31a,31b,33)抽出燃料并将燃料返回到在正常操作期间燃烧的燃料歧管(31a,31b,33)的生态阀(43) 。 生态阀(43)包括阀壳体(44),其具有联接到相应的燃料歧管(31a,31b,33)的多个生态学端口(50,52,54)和连接到相应的控制器 燃料加压阀(17)的端口(45)。 阀壳体(44)内的可移动活塞(63)将阀壳体(44)的内部分成耦合到控制端口(46)的可变容积控制室(71)和可变体积燃料储存器(55) 通过活塞(63)选择性地联接到端口(50,52,54)并与其分离。 燃料从歧管(31a,31b,33)排出。 燃料分流装置位于加压阀(17)和发动机燃料歧管(31a,31b,33)之间,用于在歧管之间分配适当的燃料流,并且包括连接的一对二通分流阀(39,41) 包括在雾化喷嘴歧管(31b)和其余歧管(31a,33)之间分配燃料流的第一分流阀(39)和从第一分流阀(39)分配下游燃料流的第二分流阀(41) )在上和下歧管(31,33)之间。