Propeller

Details Propeller Propeller

B - Operations, Transporting

63

H

B63H 1/14 (2006.01) B63H 1/20 (2006.01) F02B 61/04 (2006.01)

Patent

CA 2212810

A propeller is made up of a propelling unit having a plurality of blades, a driving unit for driving the propelling unit, and a plurality of deformable transmission units located between the propelling unit and the driving unit such that the transmission units are retained in the retaining slots of the propelling unit and the driving unit. The transmission units are tubular in shape and capable of deforming to absorb an impact force exerting on the transmission units in a direction perpendicular to the longitudinal axis of the transmission units, so as to safeguard the structural integrity of the propeller at such time when the propeller in motion is impacted on by a foreign object.

La présente invention a pour objet une hélice comportant une pluralité de pales, une source motrice assurant l'entraînement de l'hélice, et une pluralité d'organes de transmission déformables interposés entre l'hélice et la source motrice, qui sont retenus dans les fentes de retenue de l'hélice et de la source motrice. Les organes de transmission sont de forme tubulaire et capables de se déformer pour absorber la force exercée sur les organes de transmission en cas d'impact dans une direction perpendiculaire à l'axe longitudinal de la transmission afin de préserver l'intégrité structurale de l'hélice au cas où l'hélice en mouvement viendrait en contact avec un corps étranger.

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