Combustion chamber in internal combustion engine

Details Combustion chamber in internal combustion engine Combustion chamber in internal combustion engine

1986-11-19

1989-08-01

Dolinar, Andrew M.

Internal-combustion engines

Precombustion and main combustion chambers in series

Plural precombustion chambers

123260, 123276, F02B 2308

Patent

active

048525251

ABSTRACT:
According to the present invention, main and subcombustion chambers into which fuel is fed directly in an atomized state and in each of which a swirl is formed, are formed in communication with each other in a top portion of a piston, in order to use not only gas oil but also other volatile fuels of low cetane number such as gasoline and alcohol. Further, in order to improve the combustion performance, fuel is supplied into the subcombustion chamber in a finely pulverized state for easier evaporation, and fuel is adhered as liquid films to the main and subcombustion chambers. By so doing, ignition is ensured in all load conditions and it becomes possible to effect evaporation and combustion on the wall surface of each combustion chamber. Consequently, it is possible to obtain a combustion performance which is low in combustion noise and vibration and also low in the formation of unburnt matter.

REFERENCES:
patent: 2881743 (1959-04-01), Holt
patent: 3125079 (1964-03-01), Hoffmann
patent: 3144008 (1964-08-01), List
patent: 3504681 (1970-04-01), Winkler
patent: 4709672 (1987-12-01), Ishida

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