Internal-combustion engines – Precombustion and main combustion chambers in series – Chamber temperature control means
Patent
1995-03-27
1996-01-16
Dolinar, Andrew M.
Internal-combustion engines
Precombustion and main combustion chambers in series
Chamber temperature control means
123260, 123271, 123276, F02F 326
Patent
active
054839335
ABSTRACT:
In this combustion chamber structure for diesel engines, precombustion chamber bodies in which precombustion chambers are formed are installed via heat insulating layers in cavities formed in pistons, so as to improve the heat insulating capability of the precombustion chambers and the combustion rates in the precombustion chambers and primary chambers, minimize the generation of HC and NOx increase the thermal efficiently. The precombustion chamber bodies comprise upper chambers, lower chambers and gaskets of a low heat conductivity provided between the upper and lower chambers. The upper chambers are provided in the walls thereof with central insert bores into which fuel injection nozzles are thrusted in positions in the vicinity of the upper dead centers of the pistons, and communication ports, which allows the primary chambers and precombustion chambers to communicate with each other, around the central insert bores.
REFERENCES:
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patent: 3044454 (1962-07-01), Sutton
patent: 3132633 (1964-05-01), Zimmerman
patent: 3244159 (1966-04-01), Meurer
Patent Abstracts of Japan, vol. 18, No. 660 (M-1722), 14 Dec. 1994 JP-A-06 257441 (Isuzu) 13 Sep. 1994.
Patent Abstracts of Japan, vol. 14, No. 121 (M-0946), 7 Mar. 1990 JP-A-01 318751 (Isuzu) 25 Dec. 1989.
Patent Abstracts of Japan, vol. 17, No. 282 (M-1420), 31 May 1993 JP-A-05 010209 (Isuzu) 19 Jan. 1993.
Dolinar Andrew M.
Isuzu Ceramics Research Institute Co. Ltd.
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