Engine starter gearing

Details Engine starter gearing Engine starter gearing

F - Mech Eng,Light,Heat,Weapons

02

N

74/8

F02N 15/06 (2006.01) F02N 15/02 (2006.01)

Patent

CA 2038749

A centrifugally disengageable engine starter gear of the positive shift type that has a clutch to provide for driving and indexing of the starter gear, an internal mechanism keeps the clutch teeth in engagement during the indexing function, and a centrifugal separator separates the clutch teeth in an overrunning condition. The separator includes a plurality of flyweight members disposed in a like plurality of flyweight recesses provided in a driven member of the clutch. Radial displacement of the plurality of flyweights axially displaces a thrust washer to separate the clutch teeth. A projection extending longitudinally from each web which separates the flyweight recesses prevents the flyweight members from disengaging from the flyweight recesses during an overrunning mode.

Engrenage de démarreur à débrayage centrifuge de type à déplacement positif muni d'un embrayage pour entraîner et indexer l'engrenage de démarreur, d'un mécanisme interne maintenant les dents de l'embrayage en prise pendant l'indexage, et d'un séparateur centrifuge qui écarte les dents de l'embrayage en mode désengagé. Le séparateur comporte plusieurs masselottes disposées dans des logements correspondants dans un élément entraîné de l'embrayage. Le mouvement radial des masselottes déplace axialement une rondelle de butée pour désengager les dents de l'embrayage. Une saillie allant dans le sens longitudinal à partir de chaque élément qui sépare les logements de masselottes empêche les masselottes de se dégager des logements en mode désengagé.

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