Direct injection diesel engine

Details Direct injection diesel engine Direct injection diesel engine

2000-03-14

2000-12-12

Solis, Erick

Internal-combustion engines

Means to whirl fluid before, upon, or after entry into...

F02B 4708

Patent

active

061584134

ABSTRACT:
A fuel injection timing of a fuel injector (22) of a direct injection diesel engine is retarded to compression top dead center or even later. All of the required fuel injection amount is injected by the fuel injector (22) in an ignition delay period. The oxygen concentration in the combustion chamber (14) is decreased by exhaust gas recirculation. A swirl is set up in the combustion chamber (14) by a variable swirl generator (31). The compression ratio of the engine is preferably set to 15 or less, the vertical gas velocity in the combustion chamber is reduced by adopting a shallow piston cavity, and the cylinder internal maximum pressure is suppressed to 12 MPa or less.

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patent: 4444166 (1984-04-01), Kovacs et al.
patent: 4644926 (1987-02-01), Sakurai et al.
patent: 5201300 (1993-04-01), Iiyama
Masanori Yoshioka, "Development of Diesel Engine for '94 USA Emission Regulation 6HB1-X Engine for Medium-Heavy Duty Trucks," New Developed Engines, Society of Automotive Engineers of Japan, Inc. (1995), pp 47-52.

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