Internal-combustion engines – Combustion chamber means having fuel injection only – Combustible mixture stratification means
Reexamination Certificate
2005-04-19
2005-04-19
Kwon, John T. (Department: 3747)
Internal-combustion engines
Combustion chamber means having fuel injection only
Combustible mixture stratification means
C123S305000, C123S435000, C060S274000
Reexamination Certificate
active
06880518
ABSTRACT:
A first object of the invention is to reduce an exhaust gas in a lean burn area which is expanded by a supercharging, in a direct gasoline injection type internal combustion engine provided with a turbocharger. A second object of the invention is to prevent a knocking and a misfire at a time of self ignition combustion. The invention is used for the direct gasoline injection type internal combustion engine provided with the turbocharger. In order to achieve the first object, a combustion mode is switched from a stratified combustion mode to a self ignition combustion mode at a time when a suction pressure of the engine is equal to or more than an atmospheric pressure. Further, in order to achieve the second object, an ignition timing is set to a range between a top dead center and 10 degrees after the top dead center (0 to 10 (ATDC)) at a time of operating an engine in accordance with a self ignition combustion mode.
REFERENCES:
patent: 6658840 (2003-12-01), Iiyama et al.
patent: 11-336600 (1999-12-01), None
patent: 2000-248978 (2000-09-01), None
patent: 2000-310120 (2000-11-01), None
patent: 2001-003800 (2001-01-01), None
Ohsuga Minoru
Shiraishi Takuya
Tokuyasu Noboru
Yamaoka Shirou
Hitachi , Ltd.
Kwon John T.
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