Internal-combustion engines – Starting device – For airplane
Patent
1988-12-12
1990-02-20
Dolinar, Andrew M.
Internal-combustion engines
Starting device
For airplane
123179R, 290 38R, F02N 1108
Patent
active
049016890
ABSTRACT:
An electric starting system for controlling the energization of an electric starting motor that is operative to crank an engine. An engine speed sensor is coupled to the engine and develops engine speed pulses, the frequency of which is a function of engine speed. The engine speed pulses are counted by a counter for constant durations of time. If the number of speed pulses counted for a constant duration of time exceeds a predetermined number of pulses the starting motor is deenergized. The system has a start switch and a time delay circuit for causing the cranking motor to be energized at a predetermined time delay period following closure of the start switch.
REFERENCES:
patent: 3573480 (1971-04-01), Cummins
patent: 3573481 (1971-04-01), Cummins
patent: 3577001 (1971-05-01), Cummins
patent: 3628041 (1971-12-01), Cummins et al.
patent: 3712283 (1973-01-01), Kiess et al.
patent: 4045062 (1977-08-01), Disosway, III et al.
patent: 4490620 (1984-12-01), Hansen
patent: 4731543 (1988-03-01), Buetemeister et al.
Research Disclosure #27844, Electric Engine Starter Control System, Jun. 1987.
Cummins Donald L.
Stephenson Gregory A.
Dolinar Andrew M.
General Motors Corporation
Meland C. R.
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