Power plants – Combustion products used as motive fluid – Convertible or combined with feature other than combustion...
Reexamination Certificate
2008-06-17
2008-06-17
Kim, Ted (Department: 3746)
Power plants
Combustion products used as motive fluid
Convertible or combined with feature other than combustion...
Reexamination Certificate
active
07386983
ABSTRACT:
A mechanical drive system for an accessory gearbox of a gas turbine engine is provided. The engine has a high-pressure drive shaft and a low-pressure drive shaft. The mechanical drive system includes a first tower shaft, a second tower shaft, a first lay shaft, and a second lay shaft. The first tower shaft is driven by the high-pressure drive shaft. The second tower shaft is driven by the low-pressure drive shaft. The first lay shaft is driven by the first tower shaft, and is connected to the accessory gearbox. The second lay shaft is driven by the second tower shaft, and is connected to the accessory gearbox.
REFERENCES:
patent: 2952973 (1960-09-01), Hall et al.
patent: 4525995 (1985-07-01), Clark
patent: 4776163 (1988-10-01), Brockmann
patent: 5309708 (1994-05-01), Stewart et al.
patent: 5694765 (1997-12-01), Hield et al.
patent: 2005/0183540 (2005-08-01), Miller
Carlson & Gaskey & Olds
Kim Ted
United Technologies Corporation
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