Data processing: vehicles – navigation – and relative location – Vehicle control – guidance – operation – or indication – With indicator or control of power plant
Reexamination Certificate
2006-12-28
2010-10-26
Cronin, Stephen K (Department: 3747)
Data processing: vehicles, navigation, and relative location
Vehicle control, guidance, operation, or indication
With indicator or control of power plant
Reexamination Certificate
active
07822530
ABSTRACT:
In a gas-fueled internal combustion engine, an ignition device (16, 6O,62, 64, 66) is arranged in a moving direction of a stream of the gaseous fuel injected from an in-cylinder injection valve (40) in a combustion chamber. The ignition device can directly ignite the fuel stream and diffusive combustion of the gaseous fuel can be executed by sequentially injecting the gaseous fuel toward a flame created by the ignition. Further, premix combustion of the gaseous fuel can also be performed by igniting an air-fuel mixture after the gaseous fuel injected from the in-cylinder injection valve has been sufficiently mixed with the air. As an operation mode of the engine, a lean premix combustion operation is selected when the engine is operated in a prescribed operation region, and the operation mode is changed to a diffusive combustion operation when the engine is operated in a higher load operation region than the prescribed operation region.
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Korean Office Action with an English translation, dated Aug. 5, 2010, issued to the corresponding Korean Patent Application KR 10-2008-7018316.
Shinagawa Tomohiro
Suzuki Makoto
Castro Arnold
Cronin Stephen K
Oblon, Spivak McClelland, Maier & Neustadt, L.L.P.
Toyota Jidosha & Kabushiki Kaisha
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