Power plants – Reaction motor – Method of operation
Reexamination Certificate
2011-08-23
2011-08-23
Casaregola, Louis (Department: 3741)
Power plants
Reaction motor
Method of operation
C060S226300, C060S242000
Reexamination Certificate
active
08001763
ABSTRACT:
A turbine engine provides a spool supporting a turbine. The spool is arranged in a core nacelle and includes a thrust bearing. A fan is arranged upstream from the core nacelle and is coupled to the spool. A fan nacelle surrounds the fan and core nacelle and provides a bypass flow path that includes a fan nozzle exit area. A flow control device is adapted to effectively change the fan nozzle exit area. A controller is programmed to monitor the thrust bearing and command the flow control device in response to an undesired load on the thrust bearing. Effectively changing the fan nozzle exit area with the flow control device actively manages the bearing thrust load to desired levels.
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European Search Report for EP Application No. 08252056.0, Nov. 15, 2010.
Grabowski Zbigniew M.
Winter Michael
Carlson & Gaskey & Olds PC
Casaregola Louis
United Technologies Corporation
Wongwian Phutthiwat
LandOfFree
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