Demetris T Venizelos

US Patent:

6729874, May 4, 2004

Filed:

Jun 4, 2001

Appl. No.:

09/874383

Inventors:

Roger L. Poe - Beggs OK
Wesley Ryan Bussman - Tulsa OK
I-Ping Chung - Tulsa OK
Ralph Robert Hayes - Collinsville OK
Jaiwant D. Jayakaran - Tulsa OK
Andrew Jones - Winfield KS
Jason D. McAdams - Tulsa OK
Demetris T. Venizelos - Claremore OK
Richard T. Waibel - Broken Arrow OK

Assignee:

John Zink Company, LLC - Tulsa OK

International Classification:

F23D 1462

US Classification:

431354, 431177, 431278, 239418, 137602, 13759903

Abstract:

A burner arrangement includes a venturi cluster including a plurality of venturis arranged for parallel flow. The multi venturi arrangement utilizing pressurized fuel as the inducing fluid to induce a flow of air enables the provision of an ultra fuel lean premix of fuel and air. A central burner tube which extends outwardly beyond the delivery end of a primary burner tip and mounts a relatively small capacity nozzle at a substantial distance from the delivery end of the burner tip enabling the ultra fuel lean mixture to expand and slow down such that its linear speed does not exceed the flame speed of the mixture prior to by the flame of the spaced nozzle. A deflector may be positioned adjacent the nozzle to assist in stabilizing the flame after the expansion and slowing process has been completed.

US Patent:

6796790, Sep 28, 2004

Filed:

Sep 7, 2001

Appl. No.:

09/949007

Inventors:

Demetris T. Venizelos - Claremore OK
Wesley Ryan Bussman - Tulsa OK
Ralph Robert Hayes - Collinsville OK
Jesse S. Chambers - Skiatook OK
Roger L. Poe - Beggs OK

Assignee:

John Zink Company LLC - Tulsa OK

International Classification:

F23C 500

US Classification:

431 8, 431175, 431284, 431285

Abstract:

A burner assembly for a radiant burner includes a burner tube structure in the form of an elongated burner conduit having spaced inlet and outlet ends. The conduit is adapted and arranged for directing a fuel lean gaseous mixture comprising a portion of the total fluid fuel to be combusted and oxygen therealong from the inlet end to the outlet end. The assembly also includes a main burner nozzle at the outlet end of the conduit, which nozzle has a central axis, a wall extending around a centrally located chamber therein, and a downstream end spaced from the outlet end of the conduit. The main burner nozzle is arranged and adapted for receiving the mixture from the conduit in the chamber and redirecting the same through a plurality of apertures in the wall and into a combustion zone in a direction transverse to the axis and at a velocity which is greater than the flame speed of the gaseous mixture. The apertures are distributed circumferentially around the wall, whereby the mixture is directed without substantial recirculation and with minimal pressure drop through said apertures and into the combustion zone in the form of a generally round flat pattern which is detached from the nozzle, surrounds the wall and extends outwardly across a radiant surface of a burner tile. The burner also includes an elongated fuel tube extending in a direction generally parallel to the axis, and the fuel tube has a downstream end portion.

US Patent:

20020064740, May 30, 2002

Filed:

Nov 30, 2000

Appl. No.:

09/726937

Inventors:

Demetris Venizelos - Claremore OK, US
R. Hayes - Collinsville OK, US
Richard Waibel - Broken Arrow OK, US
Wesley Bussman - Tulsa OK, US

International Classification:

F23M003/02
F23M003/00
F23C005/02

US Classification:

431/008000, 431/009000, 431/347000, 431/285000

Abstract:

Low NOaxial premix burner apparatus and methods for burning fuel gas are provided by the present invention. The methods of the invention are basically comprised of the steps of mixing a first portion of the fuel gas and all of the air to form a lean primary fuel gas-air mixture, discharging the lean primary fuel gas-air mixture into the furnace space whereby the mixture is burned in a primary combustion zone therein, discharging a second portion of the fuel gas into the primary combustion zone to stabilize the flame produced therein and discharging the remaining portion of the fuel gas into a secondary combustion zone in the furnace space.

US Patent:

20040146826, Jul 29, 2004

Filed:

Jan 16, 2004

Appl. No.:

10/759323

Inventors:

Roger Poe - Beggs OK, US
Wesley Bussman - Tulsa OK, US
I-Ping Chung - Tulsa OK, US
Ralph Hayes - Collinsville OK, US
Jaiwant Jayakaran - Tulsa OK, US
Andrew Jones - Winfield KS, US
Jason McAdams - Tulsa OK, US
Demetris Venizelos - Claremore OK, US
Richard Waibel - Broken Arrow OK, US

Assignee:

John Zink Company, LLC

International Classification:

F23Q009/00
F23D014/62

US Classification:

431/354000, 431/278000

Abstract:

A burner arrangement includes a venturi cluster including a plurality of venturis arranged for parallel flow. The multi venturi arrangement utilizing pressurized fuel as the inducing fluid to induce a flow of air enables the provision of an ultra fuel lean premix of fuel and air. A central burner tube which extends outwardly beyond the delivery end of a primary burner tip and mounts a relatively small capacity nozzle at a substantial distance from the delivery end of the burner tip enabling the ultra fuel lean mixture to expand and slow down such that its linear speed does not exceed the flame speed of the mixture prior to by the flame of the spaced nozzle. A deflector may be positioned adjacent the nozzle to assist in stabilizing the flame after the expansion and slowing process has been completed.

US Patent:

20060029896, Feb 9, 2006

Filed:

Oct 6, 2005

Appl. No.:

11/244519

Inventors:

Roger Poe - Beggs OK, US
Wesley Bussman - Tulsa OK, US
I-Ping Chung - Tulsa OK, US
Ralph Hayes - Collinsville OK, US
Jaiwant Jayakaran - Tulsa OK, US
Andrew Jones - Winfield KS, US
Jason McAdams - Tulsa OK, US
Demetris Venizelos - Claremore OK, US
Richard Waibel - Broken Arrow OK, US

International Classification:

F23D 14/62

US Classification:

431285000, 431354000

Abstract:

A burner arrangement includes a venturi cluster including a plurality of venturis arranged for parallel flow. The multi venturi arrangement utilizing pressurized fuel as the inducing fluid to induce a flow of air enables the provision of an ultra fuel lean premix of fuel and air. A central burner tube which extends outwardly beyond the delivery end of a primary burner tip and mounts a relatively small capacity nozzle at a substantial distance from the delivery end of the burner tip enabling the ultra fuel lean mixture to expand and slow down such that its linear speed does not exceed the flame speed of the mixture prior to by the flame of the spaced nozzle. A deflector may be positioned adjacent the nozzle to assist in stabilizing the flame after the expansion and slowing process has been completed.