Spark ignition systems for internal combustion engines

Details Spark ignition systems for internal combustion engines Spark ignition systems for internal combustion engines

1978-07-06

1980-08-26

Lazarus, Ira S.

Internal-combustion engines

Engine speed regulator

Engine speed reduction by partial or complete omission of...

123630, 123198D, 123198DC, F02P 900, F02B 7708

Patent

active

042189985

ABSTRACT:
An internal combustion engine spark ignition system is provided which ensures that sparks are inhibited if the engine temperature exceeds a maximum safe level. The ignition circuit includes an input transistor which is switched on and off by an engine shaft transducer. The input transistor controls charging and discharging of a capacitor the voltage on which determines whether switching of the input transistor causes a spark to be produced via an output amplifier and ignition coil. A temperature sensing element determines both the rate at which the capacitor can charge and the final voltage to which it can be charged.

REFERENCES:
patent: 3599049 (1971-08-01), Barnaid
patent: 3665903 (1972-05-01), Harris et al.
patent: 3760781 (1973-09-01), Boldt
patent: 3916848 (1975-11-01), Schmidt
patent: 3960128 (1976-06-01), Anderson et al.
patent: 4034732 (1977-07-01), Van Burkleo
patent: 4054117 (1977-10-01), Palmer et al.
patent: 4078531 (1978-03-01), Hewitt
patent: 4099495 (1978-07-01), Kienche et al.

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