High compression ratio internal-combustion engine

Details High compression ratio internal-combustion engine High compression ratio internal-combustion engine

1995-10-25

1997-02-18

Argenbright, Tony M.

Internal-combustion engines

Precombustion and main combustion chambers in series

Chamber temperature control means

123292, F02B 1902

Patent

active

056032986

ABSTRACT:
The present invention relates to a high compression ratio internal-combustion engine including a control valve which opens and closes a connection hole, between a pre-chamber and a main chamber, which pre-burns fuel and main chamber. The engine controls the fuel injection and the opening and closing of the control valve according to the rotation of the crank shaft and engine load. The connection hole is opened during the exhaust step or at the last period of compression stroke near top dead center and compressed hot air is forced into t he pre-chamber. The fuel is then mixed and burned by the hot air, but the fuel air mixture in the pre-chamber is so rich that the generation of NOX is controlled. Afterwards, the non-burned fuel and flame generated in pre-chamber is ejected to the main chamber, and fuel and hot air in the main chamber react. The engine of the present invention allows smooth engine operation even at a high compression ratio.

REFERENCES:
patent: 4300497 (1981-11-01), Webber
patent: 4372264 (1983-02-01), Trucco
patent: 4424780 (1984-01-01), Trucco
patent: 4854281 (1989-08-01), Hareyama et al.
patent: 5054443 (1991-10-01), Kawamura
patent: 5178109 (1993-01-01), Kawamura

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