Prechamber for diesel engine

Details Prechamber for diesel engine Prechamber for diesel engine

1996-06-05

1998-06-23

Dolinar, Andrew M.

Internal-combustion engines

Precombustion and main combustion chambers in series

Two-cycle

123259, 123263, 123286, F02B 1908

Patent

active

057690502

ABSTRACT:
A number of embodiments of precombustion chamber configurations for two-cycle crankcase compression diesel engines. The precombustion chamber and its communicating throat are oriented so as to maintain a uniform fuel distribution in the precombustion chamber and to provide good flow into the main combustion chamber that will provide a homogeneous mixture without the flow being directed toward the exhaust port at the time the exhaust port is open. A number of embodiments show constructions that permit uniformity of tumble action in the precombustion chamber and a high velocity for the tumble action to improve turbulence and mixing. All of these factors go together to reduce NOx emissions.

REFERENCES:
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patent: 4038952 (1977-08-01), Nagano
patent: 4141324 (1979-02-01), Karaba
patent: 4204484 (1980-05-01), Miura
patent: 4434758 (1984-03-01), Grammes
patent: 4774919 (1988-10-01), Matsuo et al.
Patent Abstracts of Japan, vol. 016, No.141 (M-1232) 9 Apr. 1992 & JP-A-04 001429.
Patent Abstracts of Japan, vol. 007, No. 047 (M-196) 2 Feb. 1983 & JP-A-57 195819.
Patent Abstracts of Japan, vol. 009, No.018 (M-353) 25 Jan. 1985 & JP-A-59 165821.

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