Precombustion ionization

Patent metadata

Field	Value
Publication number	US-9496688-B2
Application number	US-201314092836-A
Country	US
Kind code	B2
Filing date	Nov 27, 2013
Priority date	Nov 27, 2012
Publication date	Nov 15, 2016
Grant date	Nov 15, 2016

Abstract

Technologies are provided for employing an ion flow to control a combustion reaction. A combustion reaction is supported at a burner or fuel source. One or more electrical signals are applied to an ionizer to generate an ion flow having a first polarity. The ion flow is introduced to the combustion reaction or a reactant at a first location, imparting a corresponding charge to the combustion reaction. The first location is at least intermittently upstream with respect to a reaction front of the combustion reaction. One or more of the electrical signals are applied to a first electrode at a second location downstream of the first location, which provokes a response by the combustion reaction according to the applied charge. The combustion reaction is controlled by selection of the one or more electrical signals.

First claim

What is claimed is:

1. A combustion system, comprising:
one or more burners configured to support one or more combustion reactions, positioned within a combustion volume;
a charging mechanism including an ionizer configured to produce ions at a location outside the combustion volume; and
a device configured to receive the ions from the charging mechanism and to deliver the ions to a combustion reaction supported by the one or more burners.

2. The combustion system of claim 1 , wherein the one or more burners is configured to support a plurality of combustion reactions, and the delivery device is configured to deliver the ions from the charging mechanism to the plurality of combustion reactions.

3. The combustion system of claim 1 , wherein the delivery device is configured to introduce the charged particles to the combustion reaction at a location that is downstream from a terminus of the one or more burners.

4. The combustion system of any of claim 3 , comprising a combustion reaction controller configured to control an aspect of the combustion reaction by applying electrical energy to the combustion reaction charged by the charged particles.

5. The combustion system of claim 4 , wherein the combustion reaction controller includes an electrode positioned within the combustion volume and adjacent to the one or more burners.

6. The combustion system of claim 3 , wherein the delivery device is configured to introduce the ions to a component of the combustion reaction at a location that is upstream from a terminus of the one or more burners.

7. The combustion system of any of claim 6 , comprising a combustion reaction controller configured to control an aspect of the combustion reaction by applying electrical energy to the combustion reaction charged by the charged particles.

8. The combustion system of claim 7 , wherein the combustion reaction controller includes an electrode positioned within the combustion volume and adjacent to the one or more burners.

9. The combustion system of claim 1 , wherein the charging mechanism includes a contact static charge generator, and the charged particles are particles carrying a static charge.

10. The combustion system of claim 1 , comprising a combustion reaction controller, configured to control an aspect of the combustion reaction by applying electrical energy to the combustion reaction charged by the ions.

11. The combustion system of claim 10 , wherein the combustion reaction controller includes an electrode positioned within the combustion volume adjacent to, or in contact with the one or more burners.

12. A combustion system, comprising:
a burner positioned within a combustion volume and configured to support a combustion reaction;
a charging mechanism including an ionizer positioned outside the combustion volume and configured to produce a flow of ions; and
a delivery device configured to receive the flow of ions from the charging mechanism and introduce the flow of ions to a combustion reaction supported by the burner.

13. The combustion system of claim 12 , comprising an electrode positioned within the combustion volume, configured to apply electrical energy to the combustion reaction.

14. The combustion system of claim 13 , comprising a second electrode positioned within the combustion volume upstream, relative to the first electrode and configured to apply electrical energy to the combustion reaction.

15. The combustion system of claim 12 , wherein the delivery device is configured to introduce the ions to the combustion reaction at a location that is downstream from a nozzle terminus of the burner.

16. The combustion system of claim 12 , wherein the delivery device is configured to introduce the ions to a component of the combustion reaction at a location that is upstream from a nozzle terminus of the burner.

17. The combustion system of claim 12 , comprising a controller configured to control a polarity and/or quantity of ions produced by the charging mechanism.

18. A combustion system, comprising:
one or more burners configured to support one or more combustion reactions, positioned within a combustion volume;
a plurality of ionizers, each configured to produce charged particles at a location outside the combustion volume; and
a delivery device configured to receive the charged particles from each of the plurality of ionizers and to deliver the charged particles to the one or more combustion reactions supported by the one or more burners.

19. The combustion system of claim 18 , comprising a system controller configured to control components of the combustion system.

20. The combustion system of claim 19 , wherein the system controller is configured to independently control a polarity and/or quantity of ions produced by respective ones of the plurality of ionizers.

21. The combustion system of claim 20 , wherein the system controller is configured to control a polarity and/or quantity of ions produced by the ionizer.

22. The combustion system of claim 18 , comprising a system controller configured to control components of the combustion system.

23. A combustion system, comprising:
a burner positioned within a combustion volume and configured to support a combustion reaction;
a charging mechanism positioned outside the combustion volume and configured to produce a flow of charged particles including a plurality of sub-flows of charged particles;
a controller configured to independently control a polarity and/or quantity of charged particles of each of the plurality of sub-flows of charged particles; and
a delivery device configured to receive the flow of charged particles from the charging mechanism and introduce the flow of charged particles to a combustion reaction supported by the burner.

24. The combustion system of claim 23 , wherein the charging mechanism includes a plurality of ionizers.

25. The combustion system of claim 23 , wherein the delivery device is configured to receive the plurality of sub-flows of charged particles and to introduce each of the sub-flows to the combustion reaction at a respective location relative to the combustion reaction.

26. The combustion system of claim 23 , wherein the controller is configured to control the charging mechanism to produce a first one of the plurality of sub-flows of charged particles having charged particles of a first polarity, and to produce a second one of the plurality of sub-flows of charged particles having particles of a second polarity, opposite the first polarity.

27. The combustion system of claim 23 , wherein the controller is configured to control the charging mechanism to produce a first one of the plurality of sub-flows of charged particles having a first quantity of charged particles, and to produce a second one of the plurality of sub-flows of charged particles having a second quantity of charged particles, different from the first quantity.

28. The combustion system of claim 23 , wherein the burner includes a plurality of nozzles, each configured to support a respective combustion reaction.

29. The combustion system of claim 28 , wherein the delivery device is configured to receive the plurality of sub-flows of charged particles and to introduce a respective first one of the plurality of sub-flows to a combustion reaction supported by each of the plurality of nozzles.

30. The combustion syst

Assignees

• Clearsign Comb Corp

Inventors

• Krichtafovitch Igor A
• Wiklof Christopher A

Classifications

• H01T23/00 Primary

  Apparatus for generating ions to be introduced into non-enclosed gases, e.g. into the atmosphere · CPC title

• F23C99/001 Primary

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

• F23D14/84

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

• F23N5/265

  using electronic means · CPC title

• F23N5/12

  using ionisation-sensitive elements, i.e. flame rods · CPC title