Power plants – Combustion products used as motive fluid – Multiple fluid-operated motors
Reexamination Certificate
2006-06-06
2006-06-06
Casaregola, Louis J. (Department: 3746)
Power plants
Combustion products used as motive fluid
Multiple fluid-operated motors
C060S802000, C074SDIG004
Reexamination Certificate
active
07055330
ABSTRACT:
A mechanical drive system for an accessory gearbox of a gas turbine engine is provided. The gas turbine engine includes a high-pressure drive shaft and a low-pressure drive shaft. The mechanical drive system includes a tower shaft and a lay shaft. The tower shaft is connected by a first gear arrangement to the low-pressure drive shaft of the gas turbine engine. The lay shaft is connected by a second gear arrangement to the first tower shaft, and connected to the accessory gearbox.
REFERENCES:
patent: 2978869 (1961-04-01), Hiscock et al.
patent: 5687561 (1997-11-01), Newton
patent: 6735954 (2004-05-01), MacFarlane et al.
Casaregola Louis J.
Jones William W.
United Technologies Corp
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