Internal-combustion engines – Precombustion and main combustion chambers in series – Precombustion chamber assembly inserted in spark plug hole
Patent
1992-08-05
1993-09-21
Nelli, Raymond A.
Internal-combustion engines
Precombustion and main combustion chambers in series
Precombustion chamber assembly inserted in spark plug hole
123169C, F02B 1900
Patent
active
052459632
ABSTRACT:
A device for improving the thermal efficiency of an internal combustion engine by incorporating a hot gas jet ignition system and a burned gas purge system. The hot, high velocity gas jet generated by the system promotes rapid combustion and helps to insure better combustion of the fuel-air mixture. The invention accomplishes this by providing a spark plug or spark plug/adapter assembly with a mini-combustion chamber having an outlet nozzle. As the engine cycles into and through the combustion phase of operation, a hot, high velocity gaseous jet issues from the mini-combustion chamber and penetrates deep into the combustion chamber of the engine to ignite the main fuel-air mixture. The burned gases in the mini-combustion chamber are than purged by ambient air flow through an air inlet check valve communicating with the mini-combustion chamber during the next intake phase of the associated internal combustion engine cylinder or combustion chamber.
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Sabol Albert
Sabol Alexander P.
Nelli Raymond A.
Rainer Norman B.
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