Internal-combustion engines – Precombustion and main combustion chambers in series – Having combustible mixture forming means
Patent
1986-08-05
1988-03-29
Wolfe, Jr., Willis R.
Internal-combustion engines
Precombustion and main combustion chambers in series
Having combustible mixture forming means
123263, 123299, 123301, 2395334, F02B 306
Patent
active
047336412
ABSTRACT:
A direct injection type Diesel engine comprising a combustion chamber having an inner wall surface formed at a piston head of a piston reciprocated in a cylinder of the Diesel engine, and a fuel injection nozzle means mounted to a cylinder head of the Diesel engine, said fuel injection nozzle means having a main nozzle hole and an auxiliary nozzle hole, wherein the main nozzle hole is closed under low load of the Diesel engine to allow fuel to be injected from the auxiliary nozzle hole only. A part of the fuel injected from the auxiliary nozzle hole is allowed to collide with the inner wall surface of the combustion chamber arranged adjacent thereto, or is allowed to collide with an inner wall surface of a passage formed at the cylinder head, which inner wall surface is connected to the inner wall surface of the combustion chamber, thereby to be atomized, while a residual part of the fuel is allowed to flow along the inner wall surface of the combustion chamber. Thus, premature ignition and slow combustion may be attained.
REFERENCES:
patent: 2305801 (1942-12-01), Weibicke
patent: 3559892 (1971-02-01), De Luca
patent: 4080937 (1978-03-01), Wolters
patent: 4382554 (1983-05-01), Hofmann
patent: 4528951 (1985-07-01), Yamada
patent: 4546739 (1985-10-01), Nakajima et al.
Isuzu Motors Limited
Wolfe, Jr. Willis R.
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