Air-fuel mixture intake system

Details Air-fuel mixture intake system Air-fuel mixture intake system

1977-10-12

1979-02-13

Burns, Wendell E.

Internal-combustion engines

Poppet valve operating mechanism

Hydraulic system

123 32ST, 123124R, 123127, 261DIG19, 261 23B, 261 41D, F02M 2304, F02T 900, F02M 2300

Patent

active

041389743

ABSTRACT:
An improved air-fuel mixture intake system for use in a internal combustion engine having a light load side intake passage and a heavy load side intake passage which are joined each other in the vicinity of an intake valve of the engine. The intake system includes engine deceleration detecting means, a first on-off valve provided in a fuel supplying path of a light load side carburetor, an air supplying passage opened into the heavy load side intake passage at downstream of a heavy load side carburetor throttle valve, and a second on-off valve provided in the air supplying passage for reduction of noxious hydrocarbon formation and prevention of after-burning, with suppression of undesirable knocking.

REFERENCES:
patent: 3470855 (1969-10-01), Von Seggern et al.
patent: 3547089 (1970-12-01), Pierlot
patent: 3570821 (1971-03-01), Walker
patent: 3601106 (1971-08-01), Nakajima
patent: 3688752 (1972-09-01), Baudry
patent: 3698371 (1972-10-01), Mitsuyama et al.
patent: 3702603 (1972-11-01), Baxendale et al.
patent: 3982507 (1976-09-01), Asaka et al.
patent: 3982513 (1976-09-01), Nakagawa
patent: 3994268 (1976-11-01), Okunishi et al.
patent: 4008696 (1977-02-01), Hisatomi et al.

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