Starting apparatus

Details Starting apparatus Starting apparatus

1974-09-05

1976-02-03

Hermann, Allan D.

Machine element or mechanism

Engine starters

192 42, 192 45, 192104C, F02N 1100, F16D 4100, F16D 4304

Patent

active

039357490

ABSTRACT:
An improved starting apparatus is utilized in association with a starting motor to effect rotation of an engine ring gear. The starting apparatus includes a pinion gear which is movable from a disengaged position to an engaged position in meshing engagement with an engine ring gear. If the pinion gear teeth and ring gear teeth are misaligned as the pinion gear is moved toward the engaged position, a plurality of balls cooperate with surfaces of grooves extending transversely to the path of movement of the pinion gear to effect rotational movement of the pinion gear relative to the engine ring gear. This pinion gear rotation moves the pinion gear teeth into alignment with the engine ring gear teeth and thereby enables the pinion gear to move into meshing engagement with the ring gear. Once the ring and pinion gears have moved into meshing engagement, a starting motor is energized and drive surfaces of the grooves cooperate with the balls to transmit drive forces from the starting motor to the pinion gear to thereby effect rotation of the engine ring gear. Upon starting of the engine, the ring gear accelerates to a greater speed than the speed at which the pinion gear is rotated. As this occurs, sloping ramp surfaces of the grooves cause the balls to move out of the grooves.

REFERENCES:
patent: 1114716 (1914-10-01), Annable
patent: 1147126 (1915-07-01), Smith
patent: 2245437 (1941-06-01), Dyer
patent: 2429091 (1947-10-01), Dodge et al.
patent: 3701285 (1972-10-01), Toulier

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