Redundant front suspension system for a turboshaft engine

Details Redundant front suspension system for a turboshaft engine Redundant front suspension system for a turboshaft engine

1997-11-19

1999-02-16

Barefoot, Galen L.

Aeronautics and astronautics

Aircraft power plants

Mounting

248554, 60 3931, B64D 2726

Patent

active

058711775

ABSTRACT:
A redundant front suspension system for a turboshaft engine mounted on a pylon of an aircraft comprises a primary suspension device forming the normal front suspension of the engine, and an emergency suspension device which operates in the event of failure of the normal suspension. The primary suspension device comprises a base support which is fixed to the pylon and has a suspension shaft which co-operates with the intermediate casing of the engine. Thrust take-up rods connect the intermediate casing to the base support. The emergency suspension device comprises a first support secured to the pylon and a second support secured to the intermediate casing, each of these two supports having a vertical yoke. The vertical yokes are interconnected by a transverse pin which passes through the yokes with a clearance between the pin and one of the yokes. The second support has a vertical pin which is received with clearance in a bore in a horizontal yoke of the first support, the vertical pin and the horizontal yoke taking up the transverse forces in the event of a rupture of the normal suspension shaft. The vertical yokes take up the longitudinal and vertical forces in the event of a rupture of the normal suspension shaft or of a thrust take-up rod.

REFERENCES:
patent: 3907220 (1975-09-01), Amelio
patent: 4065077 (1977-12-01), Brooks
patent: 4560122 (1985-12-01), Parkinson et al.
patent: 5303880 (1994-04-01), Cencula et al.
patent: 5474258 (1995-12-01), Taylor et al.

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