Direct injection diesel engine

Details Direct injection diesel engine Direct injection diesel engine

2007-01-02

2007-01-02

Kwon, John T. (Department: 3747)

Internal-combustion engines

Precombustion and main combustion chambers in series

Having combustible mixture forming means

C123S304000, C123S264000

Reexamination Certificate

active

11345761

ABSTRACT:
A combustion chamber opening toward a cylinder head is provided on a top surface of a piston, and this combustion chamber comprises a first volume having an inclined surface and a second volume further recessed from the first volume toward a pin boss. Fuel spray F from a fuel injection nozzle is injected toward an inner peripheral wall section of the second volume in a former stage of fuel injection and toward the inclined surface of the first volume in a later stage of fuel injection, and the percentage of the fuel injection period in the former stage against the total fuel injection period is set to the range from 40% to 70%.

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