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U.S. Department of Energy
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Fuel combustion system, method, and nozzle member therefor

Patent ·
OSTI ID:5747527
This paper describes improvement in a fuel combustion system for a gas engine defining a main combustion chamber above a reciprocating piston and a precombustion chamber assembly in communication therewith, defining a prechamber and igniting means for igniting a mixture of gaseous combustible fuel and air in the prechamber and forming expanding burning gases. The improvement comprises: ejection passage means defining by the precombustion chamber assembly, the ejection passage means includes a plurality of ejection passages of a preselected geometric cross-section in communication with the prechamber for directing and controllably expanding the burning gases from the prechamber into the main combustion chamber at a velocity greater than the speed of sound.
Assignee:
Caterpillar, Inc., Peoria, IL (USA)
Patent Number(s):
A; US 5024193
Application Number:
PPN: US 7-475517
OSTI ID:
5747527
Country of Publication:
United States
Language:
English