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公开(公告)号：EP1454046A1
公开(公告)日：2004-09-08
申请号：EP02774189.1
申请日：2002-11-07
发明人： O'CONNOR, Richard
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 (10) comprises rotating the engine (10) to provide an air flow (36) into a combustor (20) of the engine (10) and injecting fuel into the combustor (20) 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 (76) 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 (20). After the light-off occurrence fuel is continuously injected into the combustor (20) to accelerate the engine (10) 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：EP1454046B1
公开(公告)日：2006-03-15
申请号：EP02774189.1
申请日：2002-11-07
发明人： O'CONNOR, Richard
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 10 comprises rotating the engine 10 to provide an air flow 36 into a combustor 20 of the engine 10 and injecting fuel into the combustor 20 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 76 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 20. After the light-off occurrence fuel is continuously injected into the combustor 20 to accelerate the engine 10 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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