Engine starter gearing

Details Engine starter gearing Engine starter gearing

F - Mech Eng,Light,Heat,Weapons

02

N

74/5

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

Patent

CA 1291346

ABSTRACT OF THE DISCLOSURE Centrifugally disengageable engine starter gearing selectively starting an engine having a starting gear. The engine starter gearing includes a power shaft, a sleeve slidably secured to the power shaft, a pinion gear slidably mounted to the power shaft and movable into engagement with the starting gear, a driven clutch member secured to the pinion gear and having a circular recess with an inclined or conical surface therein, a driving clutch member mounted to the sleeve, mutually engageable clutch teeth on the driving and driven clutch members, a barrel housing having an open end and being at least partly fitted over the driving and driven clutch members, an abutment confining the driving and driven clutch members within the housing, a resilient member biasing the driving and driven clutch members into mutual engagement, a radially inwardly extending shoulder on the driving clutch member adjacent the circular recess. A plurality of centrifugal flyweight members are annularly arranged in the circular recess. Each centrifugal flyweight member has an inclined surface abutting the coni- cal surface of the driven clutch member and operative to displace the driving clutch member in the first axial direction in response to centrifu- gal force. A plurality of cavities are formed in the driven clutch member. The plurality of cavities extend from the circular recess and cooperate with at least a portion of the centrifugal flyweight members to prevent circumferen- tial movement of the plurality of centrifugal flyweight members while per- mitting radial movement thereof.

546822

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