Engine mount

Details Engine mount Engine mount

1977-07-13

1978-06-27

Staab, Lawrence J.

Supports

Pipe or cable

Extending through plate

248358R, B64D 2726

Patent

active

040970116

ABSTRACT:
A gas turbine engine acoustic noise damping mount on a helicopter airframe includes a first outboard washer assembly with metallic inner and outer washers having a thin layer of elastomer bonded therebetween; an inboard bushing assembly has telescoped inner and outer metallic bushings with a thin layer of elastomer bonded therebetween; an engine trunnion is supported by the inner bushing; and flat inboard faces on the washer assembly and inboard bushing assembly are held against either side of an airframe strut by a nut threaded to the trunnion. The inboard bushing assembly includes a tubular extension pilot guided within an engine strut whereby the thin layers of elastomer serve to interrupt transmission of structure borne sound from engine to airframe.

REFERENCES:
patent: 1815170 (1931-07-01), Summers
patent: 2638303 (1953-05-01), Pietz
patent: 3035799 (1962-05-01), Peirce

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