Patent ID: 7185496
Filing Date: 2007-03-06
Classification: F01D,F02C,F05D,F16D,Y10S

Abstract:
1. A synchronizing stationary clutch system comprising: a power turbine shaft; a gas generator shaft; a generator/motor, the generator/motor being driven by the power turbine shaft; a planetary gear set, the planetary gear set engaging the power turbine shaft and the gas generator shaft; a carrier member coupled to the planetary gear set; a grounded stationary clutch, wherein when the grounded stationary clutch is engaged it engages the carrier member; and wherein the grounded stationary clutch is adapted for coupling and uncoupling the power turbine shaft and the gas generator shaft, the power turbine shaft and the gas generator shaft are coupled when the grounded stationary clutch is engaged, and wherein the generator/motor is inverted from a generator mode to a motor mode when the power turbine shaft and the gas generator shaft are coupled via engagement of the grounded stationary clutch.