Turbofan with frangible rotor support

Details Turbofan with frangible rotor support Turbofan with frangible rotor support

1998-06-22

2000-08-29

Casaregola, Louis J.

Power plants

Reaction motor

With destruction sensing and preventing means

60 39091, 602261, F02K 304

Patent

active

061090220

ABSTRACT:
A ducted fan gas turbine engine (10) is provided with a fan (12) which is carried by a shaft (16). A frangible support member (27) maintains a coaxial relationship between the shaft (16) and the longitudinal axis (15) of the engine (10). In the event of severe damage to the fan (12), the frangible member (27) fractures, allowing the shaft (16) carrying the fan (12) to orbit about the engine longitudinal axis (15). A resilient support member (33,45) exerts a radially inward restoration force on the shaft (16) carrying the fan (12) to reduce vibration.

REFERENCES:
patent: 3727998 (1973-04-01), Haworth et al.
patent: 4452567 (1984-06-01), Treby et al.
patent: 5433584 (1995-07-01), Amin et al.
patent: 5791789 (1998-08-01), Van Duyn et al.
patent: 5974782 (1999-11-01), Gerez
patent: 6009701 (2000-01-01), Freeman et al.

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