Electric starting system

Details Electric starting system Electric starting system

1984-05-31

1985-11-05

Shoop, Jr., William M.

Prime-mover dynamo plants

Electric control

Electric-starting motor

290 38A, 290 38B, 290 38E, 123179B, H02P 904

Patent

active

045516308

ABSTRACT:
An electric starting system for cranking an internal combustion engine that utilizes a starter having a solenoid that is provided with pull-in and hold-in coils. The solenoid includes a plunger which when shifted operates solenoid switch contacts and shifts a pinion into mesh with the ring gear of the engine to be cranked. The electric starting motor has series and shunt field coils and during cranking operation the shunt field is energized through the hold-in coil of the solenoid and the series field is energized through the pull-in coil of the solenoid. This mode of energization produces a small indexing torque that slowly rotates the pinion when end tooth abutment occurs between the pinion and the ring gear.

REFERENCES:
patent: 3433968 (1969-03-01), Broyden
patent: 3609383 (1971-09-01), Welsh
patent: 3668411 (1972-06-01), Leger
patent: 3836788 (1974-09-01), Carlson et al.
patent: 3866960 (1975-02-01), Chohan
patent: 4305002 (1981-12-01), Mortensen
patent: 4415812 (1983-11-01), Griffith et al.
patent: 4418289 (1983-11-01), Mortensen

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