Combustion chamber

Details Combustion chamber Combustion chamber

1989-08-16

1991-02-26

Dolinar, Andrew M.

Internal-combustion engines

Precombustion and main combustion chambers in series

Having fluid whirling means

123263, F02B 1900

Patent

active

049953605

ABSTRACT:
A swirl chamber is defined by an approximately spherical cavity formed in a cylinder head of an internal combustion engine with the radius of the swirl chamber being reduced in the direction the swirl flows in the swirl chamber. Therefore, the swirl is accelerated as it flows in the swirl chamber. The swirl chamber communicates with a main combustion chamber formed in a piston top via a passage formed in the cylinder head when the piston is at top dead center, and air in the main combustion chamber is forced into the swirl chamber due to the compression stroke of the piston. The passage is formed in a manner such that it has constant transverse section lengthwise and such that a part of the passage defines a tangential line of the swirl chamber. Therefore, the air forced into the swirl chamber passes through the passage with little friction loss, smoothly enters the swirl chamber and gains velocity in the swirl chamber.

REFERENCES:
patent: 2118341 (1938-05-01), Colell
patent: 4237845 (1980-12-01), Kato et al.
patent: 4395983 (1983-08-01), Hamai et al.
patent: 4483289 (1984-11-01), Paul et al.
patent: 4612888 (1986-09-01), Ishida et al.
patent: 4676209 (1987-06-01), Etoh et al.

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