Pitch controlling device of a marine propeller

Details Pitch controlling device of a marine propeller Pitch controlling device of a marine propeller

1977-03-07

1979-03-06

Powell, Jr., Everette A.

Fluid reaction surfaces (i.e., impellers)

Having positive means for impeller adjustment

Power or manual actuator on non-rotatable part

416157R, B63H 308

Patent

active

041428358

ABSTRACT:
A relative motion between a solid propeller shaft and a sleeve surrounding the propeller shaft is utilized to control a pitch of a marine propeller; the front end of the sleeve being supported by a pair of taper roller bearings and the rear end of the sleeve being connected to the hub of the propeller. A bearing housing supporting the taper roller bearings is formed as a piston of a servomotor and a casing receiving the bearing housing is formed as a cylinder of the servomotor. The casing is formed as a common oil reservoir for feeding lubricating oil to a stern tube bearing and bearings in the hub of the propeller.

REFERENCES:
patent: 2414229 (1947-01-01), Johansen
patent: 2582559 (1952-01-01), Pearson
patent: 2946317 (1960-07-01), Klassen et al.
patent: 3000447 (1961-09-01), Baugher
patent: 3173343 (1965-03-01), Berry
patent: 3216507 (1965-11-01), Curioni
patent: 3338313 (1967-08-01), Tolley et al.
patent: 3395762 (1968-08-01), Itazawa

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