Engine ignition timing control

Details Engine ignition timing control Engine ignition timing control

1977-11-04

1979-09-11

Myhre, Charles J.

Internal-combustion engines

Intake manifold

Manifold tuning, balancing or pressure regulating means

123117R, F02P 510

Patent

active

041671627

ABSTRACT:
An automotive emission control system includes a servo connected between the carburetor and the distributor and between an engine driven air pump and the distributor to advance the ignition timing as a function of changes in carburetor spark port vacuum and/or air pump pressure to provide various degrees of timing advance and retard; the servo includes a pair of diaphragms that are interconnected so that movement of one advances the timing by a first amount, the second advancing the timing independently of the other and being additive or the only advance.

REFERENCES:
patent: 2383898 (1945-08-01), Udale
patent: 3162184 (1964-12-01), Walker
patent: 3465735 (1969-09-01), Francis et al.
patent: 3547089 (1970-12-01), Pierhot
patent: 3638627 (1972-02-01), Beard
patent: 3659501 (1972-05-01), Beard
patent: 3707953 (1973-01-01), Rhoades, Jr. et al.
patent: 3877452 (1975-04-01), Nohira et al.
patent: 3978832 (1976-09-01), Walker et al.
patent: 3978834 (1976-09-01), Arnaud et al.
patent: 4083335 (1978-04-01), Ohata

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