Burner system including at least one coanda surface and electrodynamic control system, and related methods

Patent metadata

Field	Value
Publication number	US-10364984-B2
Application number	US-201414167875-A
Country	US
Kind code	B2
Filing date	Jan 29, 2014
Priority date	Jan 30, 2013
Publication date	Jul 30, 2019
Grant date	Jul 30, 2019

Abstract

Embodiments of the invention are directed to a burner system including at least one Coanda surface and at least two electrodes that are biased in a manner to influences a location of fuel flow relative to the at least one Coanda surface and related methods. In an embodiment, a burner system includes at least one Coanda surface, at least one nozzle positioned and configured to emit a fuel flow at least proximate to the at least one Coanda surface, at least two electrodes, and a voltage source operably coupled to the at least two electrodes. The voltage source may be configured to bias the at least two electrodes to generate an electric field at least proximate to the at least one Coanda surface that influences a location of the fuel flow and/or a flame relative to the at least one Coanda surface.

First claim

What is claimed is:

1. A burner system, comprising:
at least two electrodes;
at least one integrated Coanda body including an inner Coanda surface and an outer Coanda surface, wherein at least one of the at least two electrodes at least partially defines at least one of the inner Coanda surface or the outer Coanda surface;
at least one nozzle positioned and configured to emit a fuel flow at least proximate to the inner Coanda surface and the outer Coanda surface;
a charger configured to inject charge into the fuel flow prior to the fuel flow flowing at least proximate to the inner Coanda surface and the outer Coanda surface, the charger including at least one sharpened protrusion; and
a voltage source operably coupled to the at least two electrodes, the voltage source configured to bias the at least two electrodes to generate an electric field at least proximate to the inner Coanda surface and the outer Coanda surface that influences a location of the fuel flow and/or a flame relative to the inner Coanda surface and the outer Coanda surface, wherein the at least one of the at least two electrodes at least partially defines at least one of the inner Coanda surface or the outer Coanda surface includes a metallic plate disposed on a corresponding one of the inner Coanda surface or outer Coanda surface.

2. The burner system of claim 1 , wherein the at least one of the at least two electrodes at least partially defines at least one of the inner Coanda surface or the outer Coanda surface includes a plurality of electrodes that are independently biasable by the voltage source.

3. The burner system of claim 1 , wherein at least one of the at least two electrodes is separate and spaced from the inner Coanda surface and the outer Coanda surface.

4. The burner system of claim 1 , wherein the voltage source is configured to control a polarity of the at least two electrodes to attract the fuel flow and/or the flame toward the inner Coanda surface and the outer Coanda surface.

5. The burner system of claim 1 , wherein the voltage source is configured to control a polarity of the at least two electrodes to repel the fuel flow and/or the flame away from the inner Coanda surface and the outer Coanda surface.

6. The burner system of claim 1 , wherein a first one of the at least two electrodes includes a counter electrode that cooperates with a second one of the at least two electrodes to shape the electric field.

7. The burner system of claim 1 , wherein the at least one nozzle includes a plurality of nozzles, and wherein the at least one integrated Coanda body forms part of a burner member arranged above the plurality of nozzles.

8. The burner system of claim 7 , further comprising a body including an interior surface side and an exterior surface side, wherein the plurality of nozzles are disposed about the body.

9. The burner system of claim 7 , wherein the burner member is formed of an electrically conductive metallic material.

10. The burner system of claim 7 , wherein the inner and outer Coanda surfaces are configured to interact with the fuel output by the first nozzles and the second nozzles.

11. The burner system of claim 8 , wherein the burner member is spaced from the body.

12. The burner system of claim 1 , wherein the at least one sharpened protrusion exhibits a serrated shape.

13. The burner system of claim 1 , wherein:
the at least one integrated Coanda body exhibits a circumference;
a first one of the at least two electrodes is positioned substantially radially about the at least one integrated Coanda body; and
a second one of the at least two electrodes is positioned substantially radially within the at least one integrated Coanda body.

14. The burner system of claim 1 , wherein the at least one integrated Coanda body including a plurality of electrodes spaced apart by dielectric portions.

Assignees

• Clearsign Comb Corp

Inventors

• Colannino Joseph
• Krichtafovitch Igor Alexeevitch
• Wiklof Christopher A

Classifications

• F23D2900/00011

  Burner with means for propagating the flames along a wall surface · CPC title

• F23D14/84 Primary

  Flame spreading or otherwise shaping (F23D14/70 takes precedence) · CPC title

• F23C99/001

  Applying electric means or magnetism to combustion (for combustion engines F02B51/04, F02M27/04) · CPC title