Internal-combustion engines – Charge forming device – Exhaust gas used with the combustible mixture
Patent
1992-12-21
1994-07-19
Argenbright, Tony M.
Internal-combustion engines
Charge forming device
Exhaust gas used with the combustible mixture
123432, F02B 3102
Patent
active
053299124
ABSTRACT:
A number of embodiments of inductions and fuel injection systems for internal combustion engines that improve exhaust emission control and fuel economy without adversely effecting the running of the engine under any running condition. This is accomplished by injecting fuel into one of at least two intake passages and providing exhaust gas recirculation into another of the intake passages. A stoichiometric fuel air mixture is introduced and the amount of exhaust gas recirculation is such that a minimum amount of air is inducted into the combustion chamber through the other intake passage when exhaust gas recirculation is being accomplished. Both two and three intake valve systems are disclosed and these use either control valves for controlling the flow through the other intake passages or operate without control valve. In addition an arrangement is provided wherein the spray from a single fuel injector may be deflected into several of the intake passages under certain running conditions so as to provide a more uniform fuel introduction without necessitating multiple fuel injectors.
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Imai Chizuko
Matsumoto Hiromitsu
Argenbright Tony M.
Macy M.
Yamaha Hatsudoki Kabushiki Kaisha
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