Burner with suppressed NO/sub x/ generation

Patent · Tue Sep 28 00:00:00 EDT 1982

OSTI ID:6220325

Nagia, K

An improved swirl burner of the two-stage combustion type reduces the amount of nitrogen oxide and soot generated while also lowering the excess rate of combustion air. A nozzle with a trustoconical shape and swirling vanes subjects the primary air to a powerful motion as it enters the first combustion chamber. The secondary-air nozzles (positioned around the primary combustion chamber) direct a rectilinear flow of air into the furnace, where the second stage of combustion occurs.

• Assignee: Chugairo Kogyo Kaisha Ltd., Japan
• Patent Number(s): US 4351632
• OSTI ID: 6220325
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
421000* -- Engineering-- Combustion Systems
424000 -- Engineering-- Pollution Control Equipment-- (1980-1989)
500200 -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
AIR POLLUTION ABATEMENT
BURNERS
CHALCOGENIDES
COMBUSTION CHAMBERS
DESIGN
FURNACES
GAS BURNERS
GAS FURNACES
NITROGEN COMPOUNDS
NITROGEN OXIDES
NOZZLES
OXIDES
OXYGEN COMPOUNDS
POLLUTION ABATEMENT
SOOT