Patent ID: 9567049
Date: 2017-02-14
CPC Classifications: B63H

Claim:
1. A self-adjustable pitch marine vessel propeller ( 2 ) attached to a shaft ( 1 ) driven by an engine of a marine vessel, comprising a substantially cylindrical hollow hub ( 3 ) and a plurality of blades ( 10 ) each extending radially outwardly from said hub ( 3 ) and being capable of partially rotating around an axis being radial to the hub ( 3 ), characterized in that the propeller comprises an actuator ( 4 ) linearly movable along the hub ( 3 ) axis; at least one motion transmission member ( 10 . 2 ) communicating with the actuator ( 4 ) and each blade ( 10 ) for converting the linear motion of the actuator ( 4 ) into rotational motion of each blade ( 10 ) in a radial direction relative to the axis of the hub; a resilient member communicating from one end with the actuator; a threaded shaft ( 5 ) communicating with the resilient member from its other end; the threaded shaft being in threaded communication with a conical piece ( 9 ) provided to an end ( 3 . 5 ) of the hub ( 3 ); wherein the threaded shaft ( 5 ) comprises a groove ( 5 . 2 ) for receiving a wrench ( 11 ) for rotatably advancing said shaft, and moving said actuator relative to said hub.