Elastomeric rotor load reaction system

Details Elastomeric rotor load reaction system Elastomeric rotor load reaction system

1978-06-26

1980-05-20

Vrablik, John J.

Fluid reaction surfaces (i.e., impellers)

Articulated, resiliently mounted or self-shifting impeller...

Nonmetallic resilient mounting

416140, 416141, B64C 1106, B64C 2738

Patent

active

042037085

ABSTRACT:
In a helicopter rotor in which the blades are supported for rotation and articulation from the hub by elastomeric bearings and including a lead-lag damper which acts to cause radially inward blade motion during rotor braking and including the improvement of utilizing members which move pivotally in response to centrifugal force and which serve blade flapping and droop stop functions both statically and dynamically and which further are programmed as a function of rotor speed to prevent or limit radial inward motion of the blade during the rotor braking operation.

REFERENCES:
patent: 2549887 (1951-04-01), Buivid
patent: 2906348 (1959-09-01), Lovegrove
patent: 3282350 (1966-11-01), Kisovec
patent: 3853426 (1974-12-01), Rybicki
patent: 4028001 (1977-06-01), Watson

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