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    • 1. 发明申请
    • Gas turbine engine fuel control system having a transfer valve and a shutoff valve and a common controller therefor
    • 燃气涡轮发动机燃料控制系统具有转换阀和截止阀及其公共控制器
    • US20070234732A1
    • 2007-10-11
    • US11399421
    • 2006-04-07
    • Jeffrey ShelbyPaul FutaMatthew ArendPer Danzl
    • Jeffrey ShelbyPaul FutaMatthew ArendPer Danzl
    • F02C7/22
    • F02C7/232F02C9/263F05D2260/406
    • A fuel control system for a gas turbine engine includes a metering valve for metering a flow of fuel, a throttling valve for maintaining a pressure drop across the metering valve, the throttling valve being shiftable between an open state and a shutoff state blocking an outlet of the metering valve, a primary control pressure supply for supplying a primary control pressure to the metering valve for controlling the position of the metering valve, a backup control pressure supply, a transfer valve shiftable between a first position connecting the primary control pressure to supply to the metering valve and a second position connecting the backup control pressure to the metering valve, and an electrohydraulic servovalve (EHSV) operably connected to the throttling valve and the transfer valve and controlling the state of the transfer valve and the position of the throttling valve. Also a method for controlling a transfer valve and a throttling valve.
    • 用于燃气涡轮发动机的燃料控制系统包括用于计量燃料流量的计量阀,用于维持跨越计量阀的压降的节流阀,所述节流阀可以在打开状态和关闭状态之间移动, 计量阀,用于向计量阀提供初级控制压力以控制计量阀的位置的主控制压力供应源,备用控制压力供应器,可在连接主控制压力的第一位置之间转换以供应至 计量阀和将备用控制压力连接到计量阀的第二位置以及可操作地连接到节流阀和转换阀并且控制转换阀的状态和节流阀的位置的电动液压伺服阀(EHSV)。 也是用于控制转换阀和节流阀的方法。
    • 2. 发明申请
    • Latchable electrohydraulic servovalve
    • 可锁定电液伺服阀
    • US20070023093A1
    • 2007-02-01
    • US11492845
    • 2006-07-26
    • Jeffrey ShelbyPaul FutaMatthew Arend
    • Jeffrey ShelbyPaul FutaMatthew Arend
    • F15B13/043
    • F15B13/0436F15B20/002Y10T137/86606Y10T137/86614Y10T137/8663
    • An electro-hydraulic servovalve (EHSV) (10) that includes a nozzle (16), a motor (12) operably connected to the nozzle (16) for controlling the position of the nozzle (16) based on current provided to the motor (12), a spool (18) having first and second ends (22,26) slidably mounted in a sleeve (34) having first and second ends (31,33) and a first land (21) near the first end (22), a first passage (40) extending from near the nozzle (16) to the first end (31) of the sleeve (34), a second passage (42) extending from near the nozzle (16) to the second end (33) of the sleeve (34), the spool (18) shifting to a first fail-safe position when the current is below a first predetermined level and latching in a second fail-safe position different than the first fail-safe position when the current exceeds a second predetermined level greater than the first predetermined level.
    • 一种电动液压伺服阀(EHSV)(10),包括喷嘴(16),可操作地连接到喷嘴(16)的马达(12),用于基于提供给马达的电流来控制喷嘴(16)的位置 具有可滑动地安装在套筒(34)中的第一和第二端(22,26)的卷轴(18)具有在第一端(22)附近的第一和第二端(31,33)和第一平台(21) ,从喷嘴(16)附近延伸到套筒(34)的第一端(31)的第一通道(40),从喷嘴(16)附近延伸到第二端(33)的第二通道(42) 当电流低于第一预定水平时,阀芯(18)转换到第一故障安全位置,并且当电流超过第一故障安全位置时锁定在与第一故障安全位置不同的第二故障安全位置 大于第一预定水平的第二预定水平。
    • 3. 发明申请
    • Gas turbine engine fuel control system having start / back up check valve (sbuc) providing a main fuel check valve function
    • 燃气涡轮发动机燃料控制系统具有启动/后备止回阀(sbuc),其提供主燃料止回阀功能
    • US20070199301A1
    • 2007-08-30
    • US11362004
    • 2006-02-27
    • Jeffrey ShelbyPaul FutaGeorge Wieger
    • Jeffrey ShelbyPaul FutaGeorge Wieger
    • F02C9/00
    • F02C9/263F02C7/232F02C7/236Y02T50/671Y10T137/86815
    • A fuel control system (10) for a gas turbine engine includes a main fuel inlet line (18), an auxiliary fuel inlet line (20) and an engine fuel outlet line (16). A first flow path extends from the main fuel inlet line (18) to the engine fuel outlet line (16) and a second flow path extends from the auxiliary fuel inlet line (20) to the engine fuel outlet line (16). A check valve (22) in the first flow path allows fuel flow through the first flow path in a direction from the main fuel inlet line (18) to the engine fuel outlet line (16) and substantially prevents fuel flow through the first flow path in a direction from the engine fuel outlet line (16) to the main fuel inlet line (18). The check valve (22) is shiftable between a first position connecting the auxiliary fuel inlet (20) to the engine fuel outlet (16) and a second position blocking the second flow path. Also a method of controlling fuel flow in a fuel control system of a gas turbine engine.
    • 用于燃气涡轮发动机的燃料控制系统(10)包括主燃料入口管线(18),辅助燃料入口管线(20)和发动机燃料出口管线(16)。 第一流路从主燃料入口管线(18)延伸到发动机燃料出口管线(16),并且第二流动路径从辅助燃料入口管线(20)延伸到发动机燃料出口管线(16)。 第一流路中的止回阀(22)允许燃料沿着从主燃料入口管线(18)到发动机燃料出口管线(16)的方向流过第一流动路径,并且基本上防止燃料流过第一流动路径 在从发动机燃料出口管线(16)到主燃料入口管线(18)的方向上。 止回阀(22)可在连接辅助燃料入口(20)与发动机燃料出口(16)的第一位置与阻挡第二流动路径的第二位置之间移动。 还有一种控制燃气涡轮发动机的燃料控制系统中的燃料流量的方法。