Propeller for a marine propulsion system

B - Operations – Transporting – 63 – H

Patent

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Details

B63H 3/04 (2006.01) B63H 20/14 (2006.01) F16H 25/20 (2006.01)

Patent

CA 2570824

A marine propulsion system comprising a push rod activated pins (170) which engage eccentric shaft (174) for unlocking a propeller base (190) so the base (190) can rotate around a transverse axis. The base (190) has an inclined suface (192) which engages with an inclined surface (159) defining an opening in the propeller~s hub therefore locking the propeller blade (34) in position. The inclined surfaces (159, 192) are disengaged by rotation of the eccentric shaft (174) thus the propeller blades (34) can be rotated to adjust the pitch and then the inclined surfaces (159, 192) re-engage to locking the propeller blade (34) in the pitch adjusted position.

Cette invention concerne un système de propulsion navale comprenant des goupilles actionnées par une tige de poussée (170) qui se mettent en prise avec un arbre excentrique (174) pour débloquer une base d~hélice (190) de sorte que la base (190) peut tourner autour d~un axe transversal. La base (190) comporte une surface inclinée (192) qui se met en prise avec une surface inclinée (159) définissant une ouverture dans le moyeu d~hélice, bloquant de ce fait la pale d~hélice (34) en position. Les surfaces inclinées (159, 192) sont dégagées par rotation de l~arbre excentrique (174) ainsi les pales d~hélice (34) peuvent tourner pour ajuster le pas, puis les surfaces inclinées (159, 192) se remettent en prise pour bloquer la pale d~hélice (34) dans la position ajustée du pas.

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