Direct injection type internal combustion engine

Details Direct injection type internal combustion engine Direct injection type internal combustion engine

1984-04-16

1987-02-10

Wolfe, Jr., Willis R.

Internal-combustion engines

Precombustion and main combustion chambers in series

Having fluid whirling means

123275, 123301, 123306, F02B 1908

Patent

active

046416170

ABSTRACT:
A direct injection type internal combustion engine has a piston reciprocatably fitted in the bore of a cylinder block defining a combustion chamber together with the cylinder block and a cylinder head. A main recess is formed in the combustion chamber for accelerating the swirl of intake air which is prepared and introduced by an intake device. At least one auxiliary recess is formed in the main recess and is arranged in the direction of the intake air swirl and in the direction of the fuel injection of a fuel injector for generating a secondary swirl different from the intake air swirl and for generating turbulence between the two swirls. Thus, the introduction of air into the fuel droplets fed from the fuel injector is promoted by the intake air swirl and the secondary swirl so that the combustion efficiency of the internal combustion engine is improved.

REFERENCES:
patent: 2762347 (1956-09-01), Seegelken
patent: 4176628 (1979-12-01), Kanai et al.

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