Gas injection system for internal combustion engine

Details Gas injection system for internal combustion engine Gas injection system for internal combustion engine

1977-06-01

1978-10-03

Myhre, Charles J.

Internal-combustion engines

Two-cycle

Rear compression

123124R, F02D 3302

Patent

active

041178084

ABSTRACT:
A gas injection system for an internal combustion engine including a combustion chamber having an inlet port connected to a main intake passage in which a throttle valve is mounted, and an injection bore provided on the combustion chamber and connected to one end of a secondary intake passage which is opened and closed by a secondary inlet valve, said system comprising a port provided in a wall of said main intake passage upstream of the throttle valve and connected to the other end of the secondary intake passage, through which air or an air-fuel mixture is led and strongly injected from said injection bore by a high negative pressure produced in the combustion chamber, and another port provided in the wall of said main intake passage slightly downstream of the throttle valve at its idle-open position, an amount of said injected gas being controlled by a negative pressure produced at said another port.

REFERENCES:
patent: 3266234 (1966-08-01), Cook
patent: 3353524 (1967-11-01), Sarto
patent: 3359958 (1976-12-01), Von Seggern et al.
patent: 3408992 (1968-11-01), Von Seggern et al.
patent: 3479997 (1969-11-01), Fryer et al.
patent: 3543776 (1970-12-01), Suzuki et al.
patent: 3659564 (1972-05-01), Suzuki et al.
patent: 3913541 (1975-10-01), Scott, Jr.
patent: 3964451 (1976-06-01), Goto
patent: 3991729 (1976-11-01), Natoro
patent: 4018204 (1977-04-01), Road, Jr.

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