Propeller

B - Operations – Transporting – 63 – H

Patent

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Details

B63H 1/14 (2006.01) B63H 23/34 (2006.01)

Patent

CA 2187605

A propeller for outboard engine comprises a thrust unit, a driving unit, and a plurality of transmission units located between the thrust unit and the driving unit. The thrust unit has a hub and a plurality of blades. The hub comprises an outer shaft nave, an inner shaft nave having a first axial hole coaxial with said outer shaft nave, and a plurality of ribs located between the inner edge of the outer shaft nave and the outer edge of the inner shaft nave. The first axial hole is provided in the inner wall thereof with a plurality of first retaining slots. The driving unit is received in the first axial hole and is provided in the outer periphery thereof with a plurality of second retaining slots. The transmission units are disposed between the inner shaft and the driving unit such that they are engaged with the first retaining slots and the second retaining slots. The transmission of the engine torsion is brought about by the transmission units.

Hélice pour moteur hors-bord comportant une partie propulsive, une partie motrice et une partie constituée d'une pluralité d'organes de transmission interposés entre la partie propulsive et la partie motrice. La partie propulsive comporte un moyeu et une pluralité de pales. Le moyeu comporte une partie externe, une partie interne traversée par un premier trou coaxial et une pluralité de nervures situées entre le bord intérieur de la partie externe et le bord extérieur de la partie interne. Le premier trou axial est pratiqué à l'intérieur de la paroi interne qui est dotée d'une pluralité de fentes de retenue. L'arbre d'entraînement, dont la périphérie est pourvue d'une pluralité de fentes de retenue, est inséré dans le premier trou axial. Les organes de transmission sont disposés entre la partie interne de l'arbre d'entraînement et le moteur et viennent en prise avec les premières et les deuxièmes fentes de retenue. Le couple moteur est communiqué à l'hélice par les organes de transmission.

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