Helicopter rotor lead-lag damper

Details Helicopter rotor lead-lag damper Helicopter rotor lead-lag damper

1976-10-04

1978-08-08

Powell, Jr., Everette A.

Fluid reaction surfaces (i.e., impellers)

Sustained ancillary movement of rotary working member

Lead-lag type rotor blade movement

416140, B64C 2742

Patent

active

041053656

ABSTRACT:
A helicopter rotor lead-lag hydraulic fluid damper has an internal anti-torque shaft preventing rotary motion of the dynamic fluid retaining seal. An independent fluid reservoir under centrifugal force supplies lubrication to the low pressure side of the seal. At rest, the fluid returns to the lower reservoir chamber by gravity.

REFERENCES:
patent: 2698675 (1955-01-01), Rossman
patent: 2774553 (1956-12-01), Jensen
patent: 3484173 (1969-12-01), Rybicki
patent: 3923419 (1975-12-01), Mouille

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