Internal-combustion engines – Precombustion and main combustion chambers in series – Chamber temperature control means
Patent
1989-10-24
1991-10-08
Argenbright, Tony M.
Internal-combustion engines
Precombustion and main combustion chambers in series
Chamber temperature control means
123270, 123292, F02B 1902
Patent
active
050544438
ABSTRACT:
A heat-insulating engine with swirl chamber constructed such that a control valve of which an opening or closing can be controlled under an operation of a cam or an electromagnetic force arranged in a communication hole between a swirl chamber made of a heat-insulating wall body and a main combustion chamber, wherein the control valve is kept closed during an intake stroke, intake air is shielded against a hot temperature part of the swirl chamber, the thermal expansion caused by accepting heat of the intake air is restricted to prevent the efficiency of suction from being decreased and deterioration of the combustion speed is eliminated. Additionally, the control valve is released near the end of a compression stroke, the intake air is rapidly fed into the swirl chamber to cause rapid thermal expansion, a mixture of gas with a rich fuel ratio is ignited at a hot temperature and then combustion in a smoke generating temperature zone is cleared to prohibit generation of the smoke, whereupon a flame is blown from the swirl chamber to the main combustion chamber, the fuel ratio is rapidly decreased and the combustion temperature is also decreased, so that combustion at NOx generating temperature zones is avoided to restrict occurrence of NOx.
REFERENCES:
patent: 2014828 (1935-09-01), Wirrer
patent: 4300497 (1981-11-01), Webber
patent: 4424780 (1984-01-01), Trucco
patent: 4429669 (1984-02-01), Burley
patent: 4738227 (1988-04-01), Kano et al.
patent: 4854281 (1989-08-01), Hareyama et al.
M.T.Z., vol. 45, pp. 190-191, Fig. 1, (May 1984), "Keramische Bauteile fur Verbrennungsmotoren", Droscha.
Argenbright Tony M.
Isuzu Motors Limited
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