Air flow regulator

Details Air flow regulator Air flow regulator

1979-10-02

1981-03-03

Yuen, Henry C.

Furnaces

Fuel feeders

Blower

431181, 431188, 110260, 110263, F23K 302, F23C 508

Patent

active

042534038

ABSTRACT:
A fuel-staging burner assembly and method in which a burner nozzle has separate, concentrically disposed elements to burn coarse and fine coal particles under different combustion conditions to reduce the production of nitrogen oxides from the combustion of coal as a fuel. The burner assembly further includes a control nozzle for maintaining a swirling motion in the combustion flame and a separate, axially-movable adjustable sleeve for regulating the quantity flow of turbulence-free combustion-supporting air.

REFERENCES:
patent: 1693880 (1928-12-01), Wetmore
patent: 1950980 (1934-03-01), Frisch
patent: 2335188 (1943-11-01), Kennedy
patent: 2515813 (1950-07-01), Wiant
patent: 3208502 (1965-09-01), Carlson
patent: 3700376 (1972-10-01), Niepenberg et al.
patent: 3838652 (1974-10-01), Schol
patent: 3940234 (1976-02-01), Reed et al.

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