Variable-pitch mechanism for a propeller

Details Variable-pitch mechanism for a propeller Variable-pitch mechanism for a propeller

1992-12-03

1994-01-25

Kwon, John T.

Fluid reaction surfaces (i.e., impellers)

Having positive means for impeller adjustment

416156, 416158, 416167, B63H 300

Patent

active

052810950

ABSTRACT:
A variable-pitch mechanism, for use in an airplane, a ship, or the like, for adjusting the pitch of a plurality of blades of a propeller in which attachment shafts of a plurality of radial blades of a propeller are rotatably mounted on a tubular hub which can be driven by a drive shaft, and eccentric pins projecting from ends of the attachment shafts are held in an annular groove defined in the outer periphery of an adjusting ring which is disposed concentrically in the hub and axially movable. The attachment shafts can be turned about their own axes through the eccentric pins in response to axial displacement of the adjusting ring for adjusting the pitch of the propeller blades.

REFERENCES:
patent: 2850106 (1958-09-01), Swan
patent: 2925131 (1960-02-01), Willi
patent: 3163231 (1964-12-01), Barnes et al.
patent: 3242992 (1966-03-01), Quenneville et al.
patent: 3567340 (1971-03-01), Schneider et al.
patent: 4643643 (1987-02-01), Otto
patent: 5090869 (1992-02-01), Wright

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