William F Raleigh
Engineers at Davis Lk Loop, Bend, OR
License number
Colorado 28231
Issued Date
May 18, 1992
Renew Date
Jun 1, 2004
Expiration Date
May 31, 2006
Type
Professional Engineer
Address
Address
61487 Davis Lake Loop, Bend, OR 97702
Professional information
Mixing Device For Mixing Fuel And Air And Furnace With A Mixing Device
US Patent:
2012018, Jul 19, 2012
Filed:
Mar 28, 2012
Appl. No.:
13/433058
Inventors:
Allan J. Reifel - Florissant MO, US
Russell W. Hoeffken - Millstadt IL, US
William F. Raleigh - Bend OR, US
Aaron D. Herzon - Ballwin MO, US
Russell W. Hoeffken - Millstadt IL, US
William F. Raleigh - Bend OR, US
Aaron D. Herzon - Ballwin MO, US
Assignee:
NORDYNE LLC - O'Fallon MO
International Classification:
F24H 3/06, F23D 14/02, F23D 14/62
US Classification:
126116 R, 431354
Abstract:
Mixing devices for mixing fuel and air for a premix burner or furnace and furnaces (e.g., premix) with mixing devices. Furnaces may be for heating an occupied space, and may produce lower NOx emissions. A mixing device may be located within an inlet tube, may have a surface that is perpendicular to the direction of fuel flow or that forms a circle, or may have two surfaces held at substantially opposite angles to induce swirl. A portion of the mixing device may extend over an orifice of the fuel injector. A mixing device may be attached to the fuel injector, may be made from a piece of sheet metal, and may have a hole for attachment to the fuel injector. Mixing devices may have a center, two arms, and two ends, which may be separated by bends. A burner plate may be sandwiched between surfaces to allow for expansion.
Premix Furnace And Methods Of Mixing Air And Fuel And Improving Combustion Stability
US Patent:
8167610, May 1, 2012
Filed:
Jun 3, 2010
Appl. No.:
12/793318
Inventors:
William F. Raleigh - Bend OR, US
Robert A. Borgeson - O'Fallon MO, US
Aaron D. Herzon - Ballwin MO, US
Allan J. Reifel - Florissant MO, US
Russell W. Hoeffken - Millstadt IL, US
Robert A. Borgeson - O'Fallon MO, US
Aaron D. Herzon - Ballwin MO, US
Allan J. Reifel - Florissant MO, US
Russell W. Hoeffken - Millstadt IL, US
Assignee:
Nordyne, LLC - O'Fallon MO
International Classification:
F23C 5/00
US Classification:
431171, 431 8, 431350, 431354, 126116 R
Abstract:
Premix furnace for heating an occupied space while producing lower NOx emissions and methods of mixing air and fuel delivered to a premix burner and of improving combustion stability. A mixing device may be located within an inlet tube, may have a flat surface that is perpendicular to the direction of fuel flow, or may have two surfaces held at substantially opposite angles to induce swirl. A mixing device may be attached to the fuel injector, may be made from a piece of sheet metal, and may have bends and a hole for attachment to the fuel injector. A fluidic diode in the inlet tube may improve combustion stability and may include a hollow frustum or a frustoconical portion, a cylinder concentric with the inlet tube, or a combination thereof. Some embodiments include refractory insulation lining the combustion chamber or may adjust for elevation or fuel characteristics.