Magneto ignition system for an internal combustion engine

Details Magneto ignition system for an internal combustion engine Magneto ignition system for an internal combustion engine

1982-09-27

1983-08-30

Cox, Ronald B.

Internal-combustion engines

High tension ignition system

Safety device

123149R, 123149C, F02P 100

Patent

active

044010966

ABSTRACT:
To prevent reverse-direction operation of an internal combustion (IC) engine to which the ignition system is connected which, possibly, may lead to dangerous conditions if the IC engine is used, for example in a chain saw, lawn mower, or the like, a diode (35) is connected across a second, ignition instant modifying R/C circuit (34, 33) in the control network (29) of the magneto ignition system, which includes a first R/C circuit (30, 31) to provide for immediate conduction of a control transistor (27) and hence blocking of a controlled ignition transistor (21) and disconnection of the ignition system in case of reverse rotation. This system is a further development of the basic ignition system described in U.S. Pat. No. 4,188,929, to which reference is made.

REFERENCES:
patent: 3824976 (1974-07-01), Katsumata
patent: 3878452 (1975-04-01), Haubner
patent: 4188929 (1980-02-01), Podradsky
patent: 4329950 (1982-05-01), Oroua

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