Honeywell International Inc.

Edward Lovett

Curtis L Taylor

Brad Patterson

Joshua J Weaver

Bradley M Wright

Joseph Goh

A fuel nozzle and a method of operating the fuel nozzle, can include a group of chambers located in the fuel nozzle, wherein the chambers can include an inner mixing chamber and an outer mixing chamber. The inner mixing chamber and the outer mixing chamber each can accept air and fuel separately and combine the air and the fuel to form a mixture of the air and the fuel. A first hole pattern and a second hole pattern can be configured in the fuel nozzle, wherein the fuel enters the inner mixing chamber through the first hole pattern and enters the outer mixing chamber through the second hole pattern. Furthermore, an angled discharge can be included with the inner mixing chamber, wherein the angled discharge slows an exit velocity of the mixture of the air and the fuel prior to exiting the fuel nozzle through a discharge end of the fuel nozzle. The group of chambers together with the first hole pattern and the second hole pattern and the angled discharge can facilitate stabilization of a flame at two distinct points downstream of the fuel nozzle depending on the rate of flow of the fuel and the air.

Fuel nozzle having inner and outer mixing chambers fed with fuel via first and second hole patterns

A gaseous fuel-air burner having a bluff body flame stabilizer, and methods of operating the same, are described herein. One device includes a bluff body configured to stabilize a flame produced by the gaseous fuel-air burner, wherein the bluff body has a conical shape configured to stabilize the flame by generating a recirculation zone having a stagnation point where the flame is stabilized.

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Charlotte, NC, United States of America

Edward Lovett