Helicopter rotor seal assembly

Details Helicopter rotor seal assembly Helicopter rotor seal assembly

1995-05-30

1997-06-24

Look, Edward K.

Fluid reaction surfaces (i.e., impellers)

Drive by fluid reaction jet on working member

Articulated or flexible connection

416 20A, 244207, B64C 2718

Patent

active

056412690

ABSTRACT:
A helicopter rotor seal for gas-driven helicopters wherein the rotor is rotatably driven by a compressed air jets at the tips of the rotors directed rearwardly with respect to rotor rotation. A non-rotatable mast extends vertically from the helicopter fuselage including a concentric bore for communication of compressed air therethrough. Positioned at the upper extremity of the mast, above the rotor blades, is a rotatable plenum for distributing compressed gas to the helicopter's respective rotor blades.

REFERENCES:
patent: 2761635 (1956-09-01), Hiller, Jr. et al.
patent: 2994384 (1961-08-01), Steven
patent: 2994495 (1961-08-01), Lubben et al.
patent: 3159360 (1964-12-01), Ryan et al.
patent: 3830588 (1974-08-01), Nagler
patent: 3843282 (1974-10-01), Nagler
patent: 4371314 (1983-02-01), Davel et al.
patent: 4473335 (1984-09-01), Henry

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