Flap stops device with retractable upper stops ring, and rotor h

Details Flap stops device with retractable upper stops ring, and rotor h Flap stops device with retractable upper stops ring, and rotor h

1995-10-05

1996-12-31

Larson, James

Fluid reaction surfaces (i.e., impellers)

With control means responsive to non-cyclic condition...

Impeller rotation speed responsive

416 51, 416 53, 416140, B64C 2751

Patent

active

055888011

ABSTRACT:
The device comprises anti-cone stops projecting outwards from a common ring that can rotate about the rotor axis on the top face of the hub and flyweights are each individually joined to the ring for driving the latter in rotation from the "ground" position, in which each anti-cone stop is facing an upper bearing shoe of the corresponding blade, to the "flight" position, in which the anti-cone stops are retracted, returning them to the "ground" position.

REFERENCES:
patent: 2549887 (1951-04-01), Buivid
patent: 2717653 (1955-09-01), Emmerson
patent: 3679322 (1972-07-01), Mouille
patent: 4289448 (1981-09-01), Declerco et al.
patent: 4652210 (1987-03-01), Leman et al.
patent: 5007799 (1991-04-01), Mouille

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