Assistance and emergency drive for electrically-driven...

Details Assistance and emergency drive for electrically-driven... Assistance and emergency drive for electrically-driven...

2006-05-09

2006-05-09

Kim, Ted (Department: 3746)

Power plants

Combustion products used as motive fluid

Multiple fluid-operated motors

C060S039080, C060S803000

Reexamination Certificate

active

07040082

ABSTRACT:
The invention relates to a system for driving an accessory, such as a fuel pump or an oil pump in a turboengine, said system comprising an electric motor and further comprising an air turbine associated with said electric motor. Said air turbine is suitable for being fed with a flow of air taken from a compressor of said turboengine and contributing to driving the accessory. The system also includes a valve for controlling the flow of air taken from the compressor, which valve is in the closed position while the turboengine is starting.

REFERENCES:
patent: 2939017 (1960-05-01), Teague, Jr. et al.
patent: 2949731 (1960-08-01), Hambling
patent: 3274757 (1966-09-01), Wapler
patent: 4729218 (1988-03-01), Haselbauer et al.
patent: 5285626 (1994-02-01), Leeson
patent: 5577385 (1996-11-01), Kapich
patent: 5899085 (1999-05-01), Williams
patent: 6145314 (2000-11-01), Woollenweber et al.
patent: 0 694 472 (1996-01-01), None

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