Gas turbine engine starting system and method

Details Gas turbine engine starting system and method Gas turbine engine starting system and method

F - Mech Eng,Light,Heat,Weapons

02

N

F02N 11/08 (2006.01) F02C 7/264 (2006.01)

Patent

CA 2264602

A starting system and method for a gas turbine engine checks to determine whether ignition has occurred in a light off window. If such ignition has not occurred, a starter coupled to the gas turbine engine is deactuated to allow deceleration through the light off window while still attempting to ignite gases in the combustor. By providing an extra interval of time to achieve ignition, start reliability is enhanced.

L'invention concerne un système et un procédé de démarrage pour une turbine à gaz. Ce système permet de vérifier que l'allumage se produit bien pendant la période d'allumage. Lorsque l'allumage n'a pas eu lieu, un démarreur, couplé à la turbine à gaz, est désactivé pour assurer une décélération pendant la période d'allumage, tout en essayant d'enflammer les gaz dans la chambre de combustion. En prévoyant un intervalle de temps supplémentaire pour assurer l'allumage, on améliore fortement la fiabilité du démarrage.

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