Inventors:
Pawel Mosiewicz - Chicago IL, US
Ceji Li - Bloomingdale IL, US
Assignee:
Midco International, Inc. - Chicago IL
International Classification:
F23D 14/00
US Classification:
431351, 431 8, 431 10, 431350, 126110 B, 126110 C, 126110 D, 432222, 237 50
Abstract:
A direct gas-fired burner assembly is disclosed in which a two-stage flame is produced. A gas manifold is attached to two baffles with apertures disposed therein. The apertures are designed such that a fuel rich zone occurs near the manifold, while a lean zone occurs away from the manifold. At high fire, the apertures create a negative pressure zone which draws the gas away from the burner thereby allowing a primary flame to burn. The primary flame in the fuel rich zone ignites a secondary flame in the lean zone. Because a flame is burning throughout the entire combustion zone, the flame does not move out past the baffles, the flame remains smaller and cooler, and a lower output of pollutants is achieved.