Auxiliary combustion chamber internal combustion engine - has integral inlet and exhaust with corrugated partition

摘要

The intake and exhaust pipe combination is for an internal combustion engine of the type having a main combustion chamber supplied with a lean mixture and an auxiliary combustion chamber supplied with a rich mixture. A spark plug ignites the rich mixture in the auxiliary chamber and the resulting torch flame passes through a torch nozzle to ignite the lean mixture in the main chamber. The auxiliary intake passage which supplies the auxiliary combustion chamber with the rich fuel mixture is integrally formed with the exhaust passage. A corrugated partition separates the two passages, forming a common wall there between. The corrugations on the partition retard the flow of mixture in the intake passage and provide heat transfer.