Method and apparatus for obtaining an automatic ignition advance

Details Method and apparatus for obtaining an automatic ignition advance Method and apparatus for obtaining an automatic ignition advance

1976-04-09

1977-11-22

Lazarus, Ronald H.

Internal-combustion engines

Igniters

Sparkers

123148E, 123117R, F02P 302, F02P 108

Patent

active

040590836

ABSTRACT:
Method and apparatus for providing ignition advance in an internal combustion engine in which a voltage generator supplies a voltage V.sub.1 applied to a first terminal of a pulse generator, and a tachometer generator supplies a voltage V.sub.2 applied to a second terminal of the pulse generator. The pulse generator in turn produces a pulse which controls the ignition upon the coincidence of voltage V.sub.1 with V.sub.2. A third signal V.sub.3, dependent on at least one of the parameters of operation of the engine, such as temperature or vacuum, is added to voltage V.sub.1 so that when V.sub.1 plus V.sub.3 coincides with V.sub.2, an ignition pulse is produced that triggers the ignition spark at that instant.

REFERENCES:
patent: 3559629 (1971-02-01), Sauvignet
patent: 3592178 (1971-07-01), Schiff
patent: 3738339 (1973-06-01), Hentginger et al.
patent: 3756212 (1971-03-01), Schirmer
patent: 3811420 (1974-05-01), Vogel

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