Propeller unit with controlled cyclic and collective blade pitch

Details Propeller unit with controlled cyclic and collective blade pitch Propeller unit with controlled cyclic and collective blade pitch

1990-01-05

1991-07-02

Look, Edward K.

Fluid reaction surfaces (i.e., impellers)

Having positive means for impeller adjustment

Power or manual actuator on non-rotatable part

416170R, 440 6, 440 50, B63H 2117

Patent

active

050282107

ABSTRACT:
An improved integral marine propulsion unit is disclosed that can generate a thrust vector in any of three degrees of motion. The unit utilizes both collective and cyclic propeller blade pitch angle variation to generate these thrust. This unit obviates the need for control surfaces and rudders for motion control of a marine vessel. Additionally, this unit provides flexibility in external propulsor arrangements on a marine hull. The unit integrates the swash plate mechanism and actuators within the central bore of a ring type prime mover.

REFERENCES:
patent: 2714866 (1955-08-01), Plenger et al.
patent: 2727485 (1955-12-01), Combs
patent: 2850106 (1958-09-01), Swan
patent: 3101066 (1963-08-01), Haselton
patent: 3291086 (1966-12-01), Haselton
patent: 3450083 (1969-06-01), Haselton
patent: 3914629 (1975-10-01), Gardiner
patent: 4648345 (1987-03-01), Wham et al.
patent: 4744727 (1988-05-01), Muller
Richard S. Brannin, "Tandem Propellers", pp. 37-43.
Nanba et al, "Development of Variable Propeller", Journal of Kansai Society f Naval Architects, No. 210, Sep. 1988 pp. 1-8.
Kawasaki Heavy Industries' Advanced Robot Technology Research Assoc. Using Varivec Propeller System, (Advertisement), May 1988.

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