Swirl chamber arrangement for diesel engine or the like

Details Swirl chamber arrangement for diesel engine or the like Swirl chamber arrangement for diesel engine or the like

1986-01-09

1987-01-13

Nelli, Raymond A.

Internal-combustion engines

Precombustion and main combustion chambers in series

Having specific connecting passage means between...

123261, 123262, 123285, 123286, F02B 1918, F02B 1910, F02B 1900, F02B 1916

Patent

active

046355987

ABSTRACT:
In a pre-chamber type diesel engine, in order to prevent droplets of liquid fuel finding their way into zones of the main combustion chamber wherein they undergo slow combustion and thus tend to form smoke, a recess is formed at the main combustion chamber end of an auxiliary transfer passage in a manner to provide a wall section which deflects droplets of fuel, which have passed through the auxiliary passage during the induction phase and/or initial stage of the compression phase, in a manner that they do not escape toward the perimeter of the piston crown and remain in a zone through which the flame produced by spontaneous combustion of the highly compressed air-fuel mixture in the pre-chamber passes thus ensuring rapid vaporization and subsequent oxidation.

REFERENCES:
patent: 3965872 (1976-06-01), Taira et al.
patent: 4006720 (1977-02-01), Sato et al.
patent: 4116191 (1978-09-01), Yanugihara et al.
patent: 4204484 (1980-05-01), Miura
patent: 4395983 (1983-08-01), Hamai et al.
patent: 4406260 (1983-09-01), Burley
patent: 4541375 (1985-09-01), Tanaka

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