F - Mech Eng,Light,Heat,Weapons – 02 – M
Patent
F - Mech Eng,Light,Heat,Weapons
02
M
123/117
F02M 67/00 (2006.01) F02B 31/08 (2006.01) F02M 69/00 (2006.01)
Patent
CA 1059393
ABSTRACT OF THE DISCLOSURE 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 injection gas being controlled by a negative pressure produced at said another port.
279586
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