Swash-plate device for controlling the pitch of rotor blades wit

Details Swash-plate device for controlling the pitch of rotor blades wit Swash-plate device for controlling the pitch of rotor blades wit

1998-09-18

2000-03-07

Look, Edward K.

Fluid reaction surfaces (i.e., impellers)

Sustained ancillary movement of rotary working member

Responsive to fixed actuator

416115, 416116, 416134A, 416140, 416141, 416138, 74579R, 244 1725, B64C 27605

Patent

active

060331828

ABSTRACT:
The non-rotating plate of the device is stopped from rotating around the rotor axis by a stop arm with at least one rigid stop track extending substantially axially and secured to the structure of the rotor aircraft. The track works together with a stop pin, integral with the non-rotating plate to stop the latter from rotating. The track has two flanges between which the pin is engaged so as to follow on this track a straight trajectory, parallel to the rotor axis and a circular arc trajectory centered on this axis, in the case of variation in the collective and cyclic pitch respectively. The stop pin includes a pad sliding between the two flanges of a slide constituting the said track and hinged around its fastening axis on the non-rotating plate.

REFERENCES:
patent: 3738772 (1973-06-01), Parenti
patent: 4732540 (1988-03-01), Mouille
patent: 4952120 (1990-08-01), Aubry et al.
patent: 5135356 (1992-08-01), Sherperd
patent: 5209429 (1993-05-01), Doolin et al.
patent: 5340279 (1994-08-01), Cycon et al.
patent: 5599167 (1997-02-01), Daldosso
patent: 5906476 (1999-05-01), Arlton

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