Power plants – Combustion products used as motive fluid – Combined with regulation of power output feature
Reexamination Certificate
2005-09-27
2008-12-30
Casaregola, Louis J (Department: 3746)
Power plants
Combustion products used as motive fluid
Combined with regulation of power output feature
C244S05300R
Reexamination Certificate
active
07469545
ABSTRACT:
An auxiliary power unit (APU) includes a controller that controls the position of an APU inlet door, and thus ram air flow to the APU, to ensure optimal starting conditions are attained and maintained in the APU during APU startup operations. The controller receives a signal representative of an APU operational parameter and, in response, to supplies APU inlet door position commands. An APU inlet door actuator is coupled to the APU inlet door and, in response to the APU inlet door position commands, moves the APU inlet door to the commanded position.
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EP Search Report, 06121311.2, dated Jan. 4, 2008.
Casaregola Louis J
Honeywell International , Inc.
Ingrassia Fisher & Lorenz P.C.
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