Revolution limiters

Details Revolution limiters Revolution limiters

1977-03-07

1979-10-23

Myhre, Charles J.

Internal-combustion engines

Intake manifold

Manifold tuning, balancing or pressure regulating means

123102, 123198DC, F02P 900

Patent

active

041716876

ABSTRACT:
A revolution limiter for internal combustion engines having a circuit for detecting when the engine revolutions exceed a given maximum permitted value, and a circuit for limiting the voltage on the primary winding of the coil comprising a semiconductor device which will breakdown above a given threshold voltage and a semiconductor switch connected in series between the terminal of the primary winding remote from the positive line connection and ground, the semiconductor switch being rendered conductive by the detection circuit in order to limit the voltage on the primary winding of the coil and thus prevent a spark occurring when said given limit is exceeded.

REFERENCES:
patent: 3563219 (1971-02-01), Mieras
patent: 3581720 (1971-06-01), Hemphill et al.
patent: 3665903 (1972-05-01), Harris et al.
patent: 3675036 (1972-07-01), Davies
patent: 3762383 (1973-10-01), Richards et al.
patent: 3776204 (1973-12-01), Harris
patent: 3854465 (1974-12-01), Adams
patent: 3858563 (1975-01-01), Roth
patent: 3884203 (1975-05-01), Cliffgard
patent: 3919993 (1975-11-01), Neuman
patent: 3967604 (1976-07-01), Kondo

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