Composite rotating swashplate for a helicopter rotor system

Details Composite rotating swashplate for a helicopter rotor system Composite rotating swashplate for a helicopter rotor system

1996-09-17

1998-09-22

Kwon, John T.

Fluid reaction surfaces (i.e., impellers)

Sustained ancillary movement of rotary working member

Responsive to fixed actuator

416134A, F04D 2936

Patent

active

058105620

ABSTRACT:
A composite rotating swashplate for a helicopter rotor system which includes rotor blades with associated control rods. The control rods control the pitch of the rotor blades. The composite rotating swashplate according to the present invention includes an outer tubular ring with an inner tubular ring located within the outer ring. The outer ring is made from braids of tri-axial graphite fibers interwoven with unidirectional plies. The inner tubular ring is made from braided .+-.45 degree graphite fibers. A support ring is located within the outer ring and external to an inboard periphery of the inner tubular ring. A plurality of apertures are formed through the outer and inner rings. The apertures are adapted to receive the terminal ends of the control rods. Mounting bolts extend through at least one wall of the outer and inner rings and attach the terminal ends of the control rods to the swashplate.

REFERENCES:
patent: 4804315 (1989-02-01), Ferris et al.
patent: 5067875 (1991-11-01), Hunter et al.
patent: 5074494 (1991-12-01), Doolin et al.
patent: 5083725 (1992-01-01), Byrnes et al.
patent: 5199849 (1993-04-01), Leman

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