Engine starter gearing

Details Engine starter gearing Engine starter gearing

1986-09-15

1987-12-29

Herrmann, Allan D.

Machine element or mechanism

Engine starters

74 7A, 192103A, 192114R, F02N 1100

Patent

active

047152397

ABSTRACT:
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 conical surface of the driven clutch member and operative to displace the driving clutch member in the first axial direction in response to centrifugal 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 circumferetial movement of the plurality of centrifugal flyweight members while permitting radial movement thereof.

REFERENCES:
patent: 3171524 (1965-03-01), Croft et al.
patent: 3263509 (1966-08-01), Digby
patent: 3915020 (1975-10-01), Johnson
patent: 4322985 (1982-04-01), Mortensen
patent: 4346615 (1982-08-01), Yoneda et al.
patent: 4425812 (1984-01-01), Williams
patent: 4611499 (1986-09-01), Giometti

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