Boat propeller device

Details Boat propeller device Boat propeller device

B - Operations, Transporting

63

H

115/26

B63H 3/00 (2006.01) B63H 3/02 (2006.01)

Patent

CA 1107154

APPLICANT: AB VOLVO PENTA Case 7022 TITLE: BOAT PROPELLER DEVICE ABSTRACT OF THE DISCLOSURE The invention relates to a boat propeller having rotatably journalled blades in its hub to enable shifting between forward and reverse without reversing the direction of rotation. The hub is rotatably journalled on the propeller shaft and contains transmission means between the shaft and the blades. The transmission means can be coupled between positions for forward, reverse and neutral. The invention uses the torque of the motor and the reaction moment of the water against the blades to achieve a relative rotation between the shaft and the hub, whereby the transmission means turn the blades to one of two stops, which define the positions for forward or reverse.

330279

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