IP Library Granted Patent US 9,243,800
Granted Patent B2
US 9,243,800 · App. 13/370,280 · Granted Jan 26, 2016

Apparatus for electrodynamically driving a charged gas or charged particles entrained in a gas

Inventors: David B. Goodson (Seattle, WA); Thomas S. Hartwick (Snohomish, WA); Tracy A. Prevo (Seattle, WA); Joseph Colannino (Mercer Island, WA); Christopher A. Wiklof (Everett, WA)
Assignee: CLEARSIGN COMBUSTION CORPORATION
F23N5/265F23C5/14F23C99/001F23D14/84
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Quick Facts
Patent No.
US 9,243,800
App. No.
13/370,280
Granted
Jan 26, 2016
Kind
B2
Abstract

Gaseous particles or gas-entrained particles may be conveyed by electric fields acting on charged species included in the gaseous or gas-entrained particles.

Claims (34)

1. A system for synchronously driving a flame shape or heat distribution, comprising:

a charge electrode configured to impart transient majority charges onto a flame;

a plurality of field electrodes or electrode portions configured to apply electromotive forces onto the transient majority charges, the field electrodes or electrode portions being arranged along a transport path of the flame; and

an electrode controller operatively coupled to the charge electrode and the plurality of field electrodes or electrode portions, the electrode controller being configured to apply synchronous drive voltages to cause synchronous transport, along the transport path, of the transient majority charges by the electromotive forces applied by the plurality of field electrodes or electrode portions, and thereby synchronously to drive the flame along the transport path.

2. The system for synchronously driving a flame shape or heat distribution of claim 1 , further comprising:

a burner configured to support the flame.

3. The system for synchronously driving a flame shape or heat distribution of claim 1 , wherein the charge electrode further comprises:

a charge injector configured to add the transient majority charges to the flame.

4. The system for synchronously driving a flame shape or heat distribution of claim 1 , wherein the charge electrode further comprises:

a charge depletion surface configured to remove transient minority charges from the flame to leave the transient majority charges in the flame.

5. The system for synchronously driving a flame shape or heat distribution of claim 1 , wherein the plurality of field electrodes or electrode portions configured to apply electromotive forces onto the transient majority charges further comprise:

a plurality of independently driven electrodes.

6. The system for synchronously driving a flame shape or heat distribution of claim 1 , wherein the plurality of field electrodes or electrode portions configured to apply electromotive forces onto the transient majority charges further comprise:

a plurality of electrodes, each of the plurality of electrodes including a plurality of electrode portions, the electrode portions of each electrode being separated from one another by shielded portions.

7. The system for synchronously driving a flame shape or heat distribution of claim 1 , wherein the plurality of field electrodes or electrode portions configured to apply electromotive forces onto the transient majority charges further comprise:

field electrodes or electrode portions arranged within the transport path.

8. The system for synchronously driving a flame shape or heat distribution of claim 1 , wherein the plurality of field electrodes or electrode portions configured to apply electromotive forces onto the transient majority charges further comprise:

field electrodes or electrode portions arranged peripheral to the transport path.

9. The system for synchronously driving a flame shape or heat distribution of claim 1 , wherein the plurality of field electrodes or electrode portions configured to apply electromotive forces onto the transient majority charges further comprise:

one or more field electrodes or electrode portions disposed within the transport path; and

one or more field electrodes or electrode portions disposed peripheral to the transport path.

10. The system for synchronously driving a flame shape or heat distribution of claim 1 , wherein the applied electromotive forces on the transient majority charges are selected to impart momentum transfer onto uncharged gas particles or gas-entrained particles.

11. The system for synchronously driving a flame shape or heat distribution of claim 1 , wherein the electrode controller is configured to cause the charge electrode to impart transient majority charges corresponding to a sequence of oppositely charged majority charge regions.

12. The system for synchronously driving a flame shape or heat distribution of claim 11 , wherein the electrode controller is configured to apply sequences of voltages to the plurality of field electrodes or electrode portions to drive movement of the oppositely charged majority charge regions along the transport path.

13. The system for synchronously driving a flame shape or heat distribution of claim 11 , wherein the electrode controller is configured to apply sequences of voltages to the plurality of field electrodes or electrode portions to drive movement of the sequence of oppositely charged majority charge regions along the transport path.

14. The system for synchronously driving a flame shape or heat distribution of claim 1 , wherein the electrode controller further comprises:

a synchronous motor drive circuit configured to generate drive pulses corresponding to voltages applied to the plurality of field electrodes or electrode portions.

15. The system for synchronously driving a flame shape or heat distribution of claim 11 , wherein the electrode controller further comprises:

one or more amplifiers configured to amplify drive pulses to voltages applied to the plurality of field electrodes or electrode portions.

16. The system for synchronously driving a flame shape or heat distribution of claim 15 , wherein the one or more amplifiers include three amplifiers.

17. The system for synchronously driving a flame shape or heat distribution of claim 1 , further comprising:

one or more sensors operatively coupled to provide one or more signals to the electrode controller;

wherein the one or more sensors are configured to sense one or more parameters corresponding to one or more of flame shape, heat distribution, combustion characteristic, particle content, or majority charged region location; and

wherein the electrode controller is configured to select a timing, sequence, or timing and sequence of drive pulses corresponding to voltages applied to the charge electrode, the field electrode or electrode portions, or the charge electrode and the field electrode or electrode portions responsive to the one or more signals from the one or more sensors.

Assignments (5)
CORRECTIVE ASSIGNMENT TO CORRECT THE NAME CHANGE FROM CLEARSIGN COMBUSTION CORPORATION, SEATTLE, WA TO CLEARSIGN TECHNOLOGIES CORPORATION, TULSA, OK.. PREVIOUSLY RECORDED AT REEL: 052268 FRAME: 0365. ASSIGNOR(S) HEREBY CONFIRMS THE CHANGE OF NAME. Recorded Jul 27, 2022
From: CLEARSIGN COMBUSTION CORPORATION
To: CLEARSIGN TECHNOLOGIES CORPORATION
Reel/Frame 061176/0107 →
CHANGE OF NAME Recorded Mar 30, 2020
From: CLEARSIGN COMBUSTION CORPORATION
To: CLEARSIGN TECHNOLOGIES CORPORATION
Reel/Frame 052268/0365 →
CORRECTIVE ASSIGNMENT TO CORRECT THE REMOVE INCORRECT SERIAL NUMBER 13/370282 PREVIOUSLY RECORDED AT REEL: 028998 FRAME: 0930. ASSIGNOR(S) HEREBY CONFIRMS THE ASSIGNMENT. Recorded Sep 14, 2015
From: GOODSON, DAVID B.; HARTWICK, THOMAS S.; PREVO, TRACY A.; COLANNINO, JOSEPH; WIKLOF, CHRISTOPHER A.
To: CLEARSIGN COMBUSTION CORPORATION
Reel/Frame 036600/0978 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 12, 2015
From: GOODSON, DAVID B.; HARTWICK, THOMAS S.; PREVO, TRACY A.; COLANNINO, JOSEPH; WIKLOF, CHRISTOPHER A.
To: CLEARSIGN COMBUSTION CORPORATION
Reel/Frame 036597/0433 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 20, 2012
From: HARTWICK, THOMAS S.; PREVO, TRACY A.; COLANNINO, JOSEPH; WIKLOF, CHRISTOPHER A.; GOODSON, DAVID
To: CLEARSIGN COMBUSTION CORPORATION
Reel/Frame 028998/0930 →
Continuity (2)
Provisional Application 61441229 · Feb 9, 2011
Related Publication 20130004902A1 · Jan 3, 2013