Carburation devices

Details Carburation devices Carburation devices

1980-03-19

1982-06-29

Nelli, Raymond A.

Internal-combustion engines

Engine speed regulator

Idle speed control

123440, 123585, 123586, 123588, 261DIG19, 261DIG78, 261121B, F02M 700, F02M 2304, F02D 500, F02D 104

Patent

active

043367798

ABSTRACT:
An idling circuit for a carburation device comprises an idling duct for supplying a primary air-fuel mixture downstream of the throttle and a fueled-air line having an adjustable cross-section for circulating an additional quantity of air and primary mixture from upstream to downstream of the throttle. A solenoid valve is energized by pulses having a duty cycle which is controlled so as to keep the engine speed near a set idling speed and so as to increase the amount of mixture supplied to the engine during deceleration at high speed.

REFERENCES:
patent: 3548792 (1970-12-01), Palmer
patent: 3601106 (1971-08-01), Nakajima
patent: 4146595 (1979-03-01), Szott et al.
patent: 4173956 (1979-11-01), Ikeura et al.
patent: 4203395 (1980-05-01), Cromas et al.
patent: 4217313 (1980-08-01), Dmitrievsky et al.
patent: 4237838 (1980-12-01), Kinngawa et al.
patent: 4242994 (1981-01-01), Keely

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