Electric starter with confined cushion

Details Electric starter with confined cushion Electric starter with confined cushion

F - Mech Eng,Light,Heat,Weapons

02

N

74/11, 354/236.1

F02N 11/00 (2006.01) F02N 15/06 (2006.01)

Patent

CA 1166039

ABSTRACT OF THE DISCLOSURE An electric starter apparatus for small internal combustion engines wherein engagement of a starter pinion gear with engine flywheel gear teeth is produced by the axial trans- lation of a nut member mating with helices formed on the motor shaft. An elastomer drive and cushion member is interposed between the nut and pinion gear wherein axial displacement of the pinion gear is through the elastomer, as is the transmission of torque to the gear. The elastomer includes an annular axial- ly extending projection received within an annular recess de- fined in the pinion gear whereby the recess partially confines the elastomer during torque transmission and engine cranking, and concentrically locates the elastomer relative to -the motor shaft.

399075

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