Suspension system for a drive assembly of a helicopter

Aeronautics and astronautics – Aircraft – heavier-than-air – Helicopter or auto-rotating wing sustained – i.e. – gyroplanes

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Details

188378, 74574, 248568, 416500, B64C 2700

Patent

active

048403300

ABSTRACT:
A suspension system having elastic bearings for a drive assembly of a helicopter is described that has a belt drive that is arranged between an output shaft and a main rotor. This belt drive comprises a first drum that is connected with the output shaft and a second drum that is connected with an angular drive for the main rotor. Both drums are connected with respect to the drive by a tensionable belt. The suspension system comprises at least two bearings in the area of the belt drums as well as another bearing at the end of the assembly 1 that faces away from the belt drums. The three bearings have a spring rigidity coordination that controls the permitted rigid-body movements of the assembly. This coordination is such that limited swivel movements of the assembly can be carried out around the longitudinal axes of the belt drums as well as parallel lifting movements of the assembly can be carried out in vertical direction.

REFERENCES:
patent: 4088042 (1978-05-01), Desjardins et al.
patent: 4111386 (1978-09-01), Kenigsberg et al.
patent: 4274510 (1981-06-01), Mouille et al.

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