Internal-combustion engines – Charge forming device – Fuel injection system
Patent
1991-01-10
1992-02-11
Dolinar, Andrew M.
Internal-combustion engines
Charge forming device
Fuel injection system
123494, F02M 5100, F02D 4130
Patent
active
050867440
ABSTRACT:
A fuel control system for an engine has a fuel injector which injects fuel into an intake passage communicating with a combustion chamber. The quantity of a direct delivery part of fuel injected from the fuel injector which is directly fed to the combustion chamber is estimated, the quantity of a drawn part of fuel which has been on a wall surface of the intake passage and is vaporized and fed to the combustion chamber together with the direct delivery part is estimated, and the quantity of fuel to be injected from the fuel injection means is dcetermined on the basis of the estimated quantities of the direct delivery part and the drawn part so that the sum of them provides a desired quantity of fuel to be fed to the combustion chamber. The estimated quantity of at least one of the direct delivery part and the drawn part is increased as a factor which governs the degree of evaporation of the fuel on the wall surface changes in such a direction as to promote evaporation of the fuel on the wall surface.
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Hosokai Tetsushi
Ishihara Toshihiro
Kobayashi Hideki
Takaba Tetsuro
Dolinar Andrew M.
Mazda Motor Corporation
Moulis Thomas N.
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