Fail safe devices for use with devices for limiting the speed of

Details Fail safe devices for use with devices for limiting the speed of Fail safe devices for use with devices for limiting the speed of

1979-12-13

1981-10-06

Myhre, Charles J.

Internal-combustion engines

Engine speed regulator

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

123320, 123329, 123630, 123359, 123198DC, 123198D, F02P 900

Patent

active

042929393

ABSTRACT:
A fail safe device for isolating the revolution limiter from the ignition system of an internal combustion engine, in which the output stage of the revolution limiter is continuously monitored to ascertain whether or not it is absorbing ignition pulses at a speed lower than the limiting speed. In the event that the absorption of ignition pulses is taking place at a speed lower than the limiting speed, the fail safe device becomes operative upon the engine revolutions falling below a given value and causes a fuse in series with the output stage of the revolution limiter to blow, thus isolating the revolution limiter from the ignition system to allow ignition to be instantly re-established in the event of a fault occuring in the revolution limiter.

REFERENCES:
patent: 3699935 (1972-10-01), Adler et al.
patent: 4034732 (1977-07-01), Van Burkleo
patent: 4171687 (1979-10-01), Coventry
patent: 4186711 (1980-02-01), Joerg
patent: 4193385 (1980-03-01), Katsumata et al.

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