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1. 发明授权

US4991392A Altitude-sensitive fuel flow control device 失效
标题翻译：高度敏感的燃油流量控制装置
公开(公告)号：US4991392A
公开(公告)日：1991-02-12
申请号：US489022
申请日：1990-03-06
申请人： Gary L. Goldberg , Sam S. Navidi , Wendell E. Reed
发明人： Gary L. Goldberg , Sam S. Navidi , Wendell E. Reed
IPC分类号： F02C7/232
CPC分类号： F02C7/232 , Y02T50/671 , Y10T137/2012 , Y10T137/7788
摘要： In order to control fuel flow at a fuel delivery point for auxiliary power units, and for other low fuel flow applications, an altitude-sensitive fuel flow control device (10) includes a fuel inlet (12) in communication with a fuel source and a fuel outlet (14) in communication with a fuel combustor. The device (10) includes an axially extending rod (16) having a metering surface (22) intermediate the ends (24, 26) thereof which may be located in various positions relative to a fuel flow path (18a, 18b, 18c, 18d, 18e) extending from the fuel inlet (12) to the fuel outlet (14) by axial movement of the rod (16) which varies fuel flow within a preselected range of altitude-dependent fuel flow rates. In order to move the axially extending rod (16) to variously position the metering surface (22) relative to the fuel flow path (18a, 18b, 18c, 18d, 18e), an aneroid bellows (28) movable responsive to changes in ambient pressure is interconnected with the axially extending rod (16) and a differential pressure regulaator (52) is in communication with the fuel flow path (18a, 18b, 18c, 18d, 18e) upstream and downstream of the metering surface (22) for maintaining a constant pressure drop independently of altitude.
摘要翻译：为了控制用于辅助动力装置的燃料输送点和用于其它低燃料流量应用的燃料流量，高度敏感的燃料流量控制装置（10）包括与燃料源连通的燃料入口（12）和燃料出口（14）与燃料燃烧器连通。装置（10）包括轴向延伸的杆（16），其具有位于其相对于燃料流动路径（18a，18b，18c，18d）的各个位置的端部（24,26）之间的计量表面（22），18e），其通过杆（16）的轴向移动从燃料入口（12）延伸到燃料出口（14），其将燃料流量改变在依赖于高度的燃料流量的预选范围内。为了使轴向延伸的杆（16）移动以相对于燃料流动路径（18a，18b，18c，18d，18e）不同地定位计量表面（22），可以响应于环境变化而移动的无弹性波纹管（28）压力与轴向延伸的杆（16）互连，并且差压调节器（52）与计量表面（22）上游和下游的燃料流动路径（18a，18b，18c，18d，18e）连通，用于维持恒定的压降独立于高度。

2. 发明授权

US5115638A Propulsion turbine fuel control system 失效
标题翻译：推进涡轮燃油控制系统
公开(公告)号：US5115638A
公开(公告)日：1992-05-26
申请号：US461746
申请日：1990-01-08
申请人： Wendell E. Reed , Malcolm J. McArthur
发明人： Wendell E. Reed , Malcolm J. McArthur
IPC分类号： F02C7/272 , F02C9/26
CPC分类号： F02C9/26 , F02C7/272
摘要： A fuel control system for a small gas turbine propulsion engine which enables a long term storage with fuel combined with a rapid start and operation as well as rapid stable control of the fuel flow. The control system includes an electrically controlled servo valve disposed upstream of a fuel pump, with the valve and pressure sensing cavities of a differential pressure control device being maintained full of fuel for a long term storage. Leakproof-type flexure pivots are provided for transmitting motion of an electrical torque motor to the servo valve and transmitting motion of a diaphragm to a throttle located downstream of the fuel pump. A frangible diaphragm is provided at the pump inlet which is adapted to be fractured or otherwise opened to activate the system upon a start-up of the turbine engine and, for this purpose, pressurized gas may be used to temporarily pressurize a fuel tank to burst the frangible diaphragm. The fuel flow is proportional to an applied electric current and independent of the tank or engine pressures, with the electric current being controlled by an electronic controller.
摘要翻译：一种用于小型燃气轮机推进发动机的燃料控制系统，其能够长期储存燃料并结合快速启动和操作以及快速稳定地控制燃料流。控制系统包括设置在燃料泵上游的电控伺服阀，差压控制装置的阀和压力感应腔保持充满燃料以进行长期储存。提供防漏型挠曲枢轴，用于将电动力矩马达的运动传递到伺服阀，并将隔膜的运动传递到位于燃料泵下游的节气门。在泵入口处设置易碎隔膜，其适于断裂或以其他方式打开以在涡轮发动机起动时启动系统，并且为此目的，可以使用加压气体来暂时加压燃料箱以使其爆裂易碎隔膜燃料流量与施加的电流成比例，而与油箱或发动机压力无关，电流由电子控制器控制。

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