Diesel engine having swirl chamber and shaped flame dispersing r

Details Diesel engine having swirl chamber and shaped flame dispersing r Diesel engine having swirl chamber and shaped flame dispersing r

1985-06-11

1987-05-05

Dolinar, Andrew M.

Internal-combustion engines

Precombustion and main combustion chambers in series

Piston shape complements precombustion chamber discharge

123262, F02B 1908

Patent

active

046623302

ABSTRACT:
In order to promote a good flame dispersion within the combustion chamber of a swirl chamber type Diesel engine, a shaped recess formed in the piston crown is arranged to have a trench portion into which the flame from the swirl chamber is injected and mirror image flame dispersion portions on either side of the trench which terminates at the periphery of the piston crown. This arrangement inhibits the formation of secondary flame flows which tend impede desirable patterns within the flame disportion portions and simultaneously enlarges the dispersion area. In addition, careful selection of the dimensions of the transfer port which interconnects the swirl chamber and the main combustion chamber, and the various sections of the shaped recess, promotes further reductions in HC and smoke emissions.

REFERENCES:
patent: 2935054 (1960-05-01), Franke et al.
patent: 3965872 (1976-06-01), Taira et al.
patent: 4005684 (1977-02-01), Habu
patent: 4323039 (1982-04-01), Tsugekawa et al.
patent: 4347815 (1982-09-01), Schmidt

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