Power plants – Combustion products used as motive fluid – With safety device
Patent
1992-05-19
1994-01-11
Bertsch, Richard A.
Power plants
Combustion products used as motive fluid
With safety device
60739, 239119, F02G 300
Patent
active
052770230
ABSTRACT:
A fuel injector system for a combustor of a gas turbine engine includes first and second fuel injectors rendered operative to discharge fuel to the combustor during a high power regime of engine operation and rendered non-operative during a lower power regime of engine operation. The first and second fuel injectors include respective first and second fuel discharge passages in fuel flow communication to one another and to the combustor via associated fuel discharge lips to sustain a flame region. The first and second fuel injectors are operatively associated with respective first and second air discharge means having air discharge lips for discharging air to the combustor for sustaining the flame region therein. When the fuel injectors are rendered non-operative, different pneumatic pressures are established at the fuel discharge lips to purge fuel from the fuel injectors to the combustor.
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Drawings A and B of gas turbine engines made by Pratt & Whitney Aircraft, United Technologies Corp.
Bradley Jerome R.
Koblish Theodore R.
Bertsch Richard A.
Fuel Systems Textron Inc.
Kocharov Michael I.
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