Fuel combustion system, method, and nozzle member therefor

This invention relates to a fuel combustion system (10) for a lean burn internal combustion engine (12). Because of the lean fuel/air ratio, it is difficult to consistently achieve complete and thorough combustion within the main combustion chamber (28) because of the relatively slow rate of flame p...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser:	RUSSEL R. GRAZE JR
Format:	Patent
Sprache:	eng
Schlagworte:	ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES BLASTING COMBUSTION ENGINES COMBUSTION ENGINES IN GENERAL CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS INTERNAL-COMBUSTION PISTON ENGINES LIGHTING MECHANICAL ENGINEERING WEAPONS
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Beschreibung
Zusammenfassung:	This invention relates to a fuel combustion system (10) for a lean burn internal combustion engine (12). Because of the lean fuel/air ratio, it is difficult to consistently achieve complete and thorough combustion within the main combustion chamber (28) because of the relatively slow rate of flame propagation. The subject fuel combustion system (10) includes a precombustion chamber assembly (37) defining a prechamber (52) having a preselected shape and volume and includes a plurality of ejection passages (132). The passages (132) are of a preselected geometric cross-section for directing and controllably expanding burning gases from the prechamber (52) into the main combustion chamber (28) at a velocity greater than the speed of sound in order to penetrate and cause igniting and burning in the main combustion chamber (28) for faster and more complete combustion.