Flank drive for planing hull and displacement craft

Details Flank drive for planing hull and displacement craft Flank drive for planing hull and displacement craft

1976-10-18

1978-04-18

Halvosa, George E. A.

Fluid reaction surfaces (i.e., impellers)

Specific blade structure

Irregular, flanged or channel forming blade surface

416108, B63H 110

Patent

active

040845370

ABSTRACT:
The invention relates to a flank drive for propelling a boat wherein a plurality of propeller housings are rotatably mounted in a wheel body about and in driving engagement with a normally stationary guide wheel centrally of the wheel body, which wheel body is rotated about its own central axis by means of a propulsion motor to carry the housings about the wheel body axis and rotate the housings about their own axes, so that the propeller housings undergo epicyclic motion.
The propeller blade in each propeller housing can be adjusted relative to its housing passively by relative motion between abuttments or positively by means of an automatic hydraulic control to the most effective angle of attack, whereby the blades mainly exert flank force to the surrounding water. The guide wheel may be swivelled to steer the boat.

REFERENCES:
patent: 1922606 (1933-08-01), Voith
patent: 2589300 (1952-03-01), Sherman
patent: 3134443 (1964-05-01), Snow
patent: 3442242 (1969-05-01), Laskey et al.
patent: 3759211 (1973-09-01), Kuntz, Jr.

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