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U.S. Department of Energy
Office of Scientific and Technical Information

Low emission combustion chamber

Patent ·
OSTI ID:7334662
A low emission combustion chamber is described in which vitiated products of combustion from a pilot burner are caused to swirl about the combustion chamber axis before fuel droplets are introduced for flash vaporization. A vaporized, swirling, vitiated fuel-air mixture is produced, and ignition is prevented until combustion air can be combined with the mixture to molcularly premix the fuel and air. The oxygen content is increased to reduce the ignition lag to effect autoignition at an equivalence ratio less than 1, resulting in high-rate, lean burning in the primary combustion chamber.
Assignee:
United Technologies Corp.
Patent Number(s):
US 3973395
OSTI ID:
7334662
Country of Publication:
United States
Language:
English