Speed sensitive switching device

Details Speed sensitive switching device Speed sensitive switching device

1974-05-16

1976-07-06

Myhre, Charles J.

Internal-combustion engines

Intake manifold

Manifold tuning, balancing or pressure regulating means

123102, 324169, 307 96, F02P 900, F02P 100

Patent

active

039676030

ABSTRACT:
This invention provides a speed sensitive device for controlling the speed of an engine. A tachometric generator is provided which supplies a voltage or a function of the engine speed, and this is compared with a reference voltage which is a fraction of the voltage of the battery.
In a first stage of the comparison the voltage supplied by the tachometric generator is compared with a reference voltage fixed by a dividing bridge, which determines a comparison threshold so that, when the voltage supplied by the tachometric generator exceeds this threshold, the first stage triggers a second stage of comparison, similar to the first, which compares the voltage from the first stage with another reference voltage fixed by a second dividing bridge, this second triggering causing actuation of a switching component to modify the ignition of the engine.

REFERENCES:
patent: 3736910 (1973-05-01), Raff
patent: 3750633 (1973-08-01), Ohtani
patent: 3766895 (1973-10-01), Voss
patent: 3776204 (1973-12-01), Harris
patent: 3822679 (1974-07-01), Hobo

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