Induction system for spark ignition engine of fuel injection typ

Details Induction system for spark ignition engine of fuel injection typ Induction system for spark ignition engine of fuel injection typ

1979-05-16

1985-04-30

Dolinar, Andrew M.

Internal-combustion engines

Starting device

For airplane

123432, 123442, 123445, 123588, F02M 6114

Patent

active

045137005

ABSTRACT:
An induction system for an internal combustion engine that improves performance, particularly at low speeds, through the use of a relatively small auxiliary induction system, through which a substantial portion of the low speed charge requirements of the engine are supplied. In accordance with this invention, a cold starting enrichment device in the form of a fuel injection nozzle is provided in a main passage of the auxiliary induction system. In accordance with one feature, a throttle valve is provided in an induction passage and has a smaller cross-sectional area than the passage in its idle position, so as to permit the idle air flow around the periphery of the throttle valve. In accordance with another feature, a temperature responsive air by-pass is provided for flowing additional air into the auxiliary induction passage during cold running, so as to improve warm-up time.

REFERENCES:
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patent: 2511213 (1950-06-01), Leslie
patent: 3543736 (1970-12-01), Suzuki et al.
patent: 3685503 (1972-08-01), Jackson
patent: 3704702 (1972-12-01), Aono
patent: 3716034 (1973-02-01), Schmid
patent: 3742923 (1973-07-01), Oblander et al.
patent: 3964457 (1976-06-01), Coscia
patent: 4136653 (1979-01-01), Knapp et al.
patent: 4194474 (1980-03-01), Endo
patent: 4216757 (1980-08-01), Romann

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