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公开(公告)号：US07204090B2
公开(公告)日：2007-04-17
申请号：US10868848
申请日：2004-06-17
CPC分类号： F02C7/275
摘要： A method and an apparatus for starting a gas turbine engine under various conditions are used to distribute a varying total amount of electric power to at least one of a starter, a fuel heater and an oil heater while providing fuel.
摘要翻译： 用于在各种条件下启动燃气涡轮发动机的方法和装置用于在提供燃料的同时向起动机，燃料加热器和油加热器中的至少一个分配变化的总功率量。
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公开(公告)号：US06988368B2
公开(公告)日：2006-01-24
申请号：US10941906
申请日：2004-09-16
CPC分类号： F02C9/28 , F02C7/26 , F05D2270/301 , F05D2270/303 , F05D2270/304
摘要： A method of engine starting in a gas turbine engine comprises rotating the engine to provide an air flow into a combustor of the engine and injecting fuel into the combustor at a varying rate until the engine is lighted-off. The varying rate of the fuel flow is a function of time and is represented by a curve having at least one high frequency with respect to a light-off time, representing instant changes of the rate for intersecting a light-off zone while reducing a quantity of fuel injected into the combustor. After the light-off occurrence fuel is continuously injected into the combustor to accelerate the engine to a self-sustaining operation condition. This method of the present invention is adapted to find light-off points under various temperature and altitude conditions, thereby advantageously providing a rapid light-off, particularly under cold weather conditions.
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公开(公告)号：US06810676B2
公开(公告)日：2004-11-02
申请号：US10016869
申请日：2001-12-14
IPC分类号： F02C722
CPC分类号： F02C9/28 , F02C7/26 , F05D2270/301 , F05D2270/303 , F05D2270/304
摘要： A method of engine starting in a gas turbine engine comprises rotating the engine to provide an air flow into a combustor of the engine and injecting fuel into the combustor at a varying rate until the engine is lighted-off. The varying rate of the fuel flow is a function of time and is represented by a curve having at least one high frequency with respect to a light-off time, representing instant changes of the rate for intersecting a light-off zone while reducing a quantity of fuel injected into the combustor. After the light-off occurrence fuel is continuously injected into the combustor to accelerate the engine to a self-sustaining operation condition. This method of the present invention is adapted to find light-off points under various temperature and altitude conditions, thereby advantageously providing a rapid light-off, particularly under cold weather conditions.
摘要翻译： 一种在燃气涡轮发动机中启动的发动机的方法包括使发动机旋转以向发动机的燃烧器提供空气流，并以不同的速率将燃料喷射到燃烧器中，直到发动机熄火。 燃料流量的变化率是时间的函数，并且由相对于熄灭时间具有至少一个高频率的曲线表示，表示与点火区域相交的速率的瞬时变化，同时减少量 的燃料喷射到燃烧器中。 在点火发生之后，将燃料连续地喷射到燃烧器中，以将发动机加速到自持运行状态。 本发明的这种方法适用于在各种温度和高度条件下找到点火点，从而有利地提供快速点灯，特别是在寒冷天气条件下。
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