Flynn Research and Development:


11/16/09 Des Plaines, IL:

Gas Technology Institute (GTI) announces the successful demonstration of the High Efficiency Gas-Fired Drum Dryer (GFDD) technology for industrial food processing applications. An innovative alternative to traditional steam-heated systems, the GTI-patented GFDD technology provides increases in production, higher temperature capability, increased energy efficiency, and lower carbon emissions.

In the course of the project funded by the California Energy Commission, GTI—together with contributing partners Groupe Lapperriere and Verreault USA Inc. (GL&V), a leading drum dryer manufacturer; Flynn Burner Corporation, globally recognized as the leader in ribbon burner technology; and ConAgra, a major international food processor—effectively designed, engineered, installed and demonstrated the GFDD system for the production of toasted onion powder.

California is the top agricultural state in the nation and the largest center for food processing. Drying and indirect heating are the most energy-intensive and temperature-critical aspects of food processing. One of the most economical methods is drum drying, a continuous indirect heating process. Drum dryers can be used for a wide spectrum of foods, including dried and dehydrated fruit and vegetable puree, flakes, flour, starch, and soup mix production; dry condensed and evaporated dairy product manufacturing; edible films; dog and cat food manufacturing; breakfast cereals; and food preparation ingredients.

“We are very excited about this innovative technology and its promising future,” said Karen Douglas, California Energy Commission Chairman. “This project addresses several major California energy goals, including the reduction of carbon and an increase of energy efficient technologies decreasing the state’s dependence on fossil fuels. California’s agriculture industry and its ratepayers will benefit from this advanced research.”

Successful implementation of this technology will result in significant energy savings bringing environmentally safe, affordable, and reliable energy services and products to California’s marketplace. “The food industry is a growing user of natural gas, consuming nearly 650 trillion Btus per year,” notes Bill Liss, Managing Director, End Use Solutions. “This technology holds promise to cost-effectively improve efficiency of the drying process, and can serve as a successful model for food production facilities nationwide.”

GTI, in conjunction with GL&V, will continue marketing the high-efficiency GFDD technology to California food processors as well as initiate the technology commercialization process nationwide.


Innovative Gas-Fired Paper Drum Dryer @ GL&V USA!

Gas Technology Institute (GTI) jointly with industrial partners (GL&V USA and Flynn Burner Corp) under US Department of Energy, STAC, MN SEO and Gas Industry financial support have developed an innovative Gas-Fired Paper Dryer (GFPD) that has a tremendous potential for the energy savings  (overall efficiency over 75-85%) along with lowering pollutant emissions to comply with the firm State/Federal environmental regulations. Pilot-scale unit was extensively tested at WMU Pilot Paper Plant in 2003-2004 and successfully proved the anticipated benefits including TAPPI drying rate improvement in 2-3 times without any paper machine extension.

About GTI

GTI is a leading research, development, and training organization that has been addressing the nation’s energy and environmental challenges by developing technology-based solutions for consumers, industry, and government for more than 65 years. Website:


 PAT. NO. Title
97,635,264 PDF

Attenuating combustion noise of premixed flames (Anti-Howl)

United States Patent 7,635,264
Strobel , et al. December 22, 2009
Attenuating combustion noise of premixed flames

Disclosure is made of methods, systems, and apparatus for changing characteristics of noise of premixed flames supported on burners by heating burner passageways by an amount that attenuates combustion noises arising from premixed flames. Alternatively, attenuation occurs by controlling a temperature differential between a first point relative to a premixed flame and at least a second point in an uncombusted portion of a fuel/oxidizer mixture causing the flame


84,549,866 Method and apparatus for applying heat to articles and materials

United States Patent 4,549,866
Granville October 29, 1985
Method and apparatus for applying heat to articles and materials

A heating device including a flame burner (40) and a nozzle (52) into which the flame (50) from the burner (40) is directed and in which process air is mixed with products of combustion from the flame; the nozzle (52) having hot gas discharge openings (106) through which the hot gases resulting from the mixing action are projected onto articles (10) or other material to be heated.



Liquid fuel atomizing nozzle

United States Patent 4,160,526
Flanagan July 10, 1979
Liquid fuel atomizing nozzle

A liquid fuel atomizer nozzle having a liquid fuel input and an air input, the nozzle including an internal mixing chamber in which the incoming liquid fuel to be atomized is subjected to high velocity air streams both within the central core of the liquid and about its periphery to effect thorough atomization of the liquid even at low atomizing air flow rates and pressures.



Adjustable ignition electrode assembly

United States Patent 4,154,573
Dietz May 15, 1979
Adjustable ignition electrode assembly

An ignition electrode assembly for a gas-fired oven burner formed by a cylindrical casing having a longitudinal slot occupied by metal ribbons to define a port through which gas is emitted. Included in the assembly is an electrode unit which projects into the oven interior through a bushing in a cover plate mounted on a wall of the oven, the unit having a tip on the free end thereof. The unit is pivoted on the bushing by means of a holding collar received in the bushing and having an external handle whose movement is limited to allow the electrode unit to be swung from a normal first position to a temporary second position. In the first position, which is settable, the spacing then established between the electrode tip and the port ribbons creates a spark gap therebetween capable of sustaining a spark discharge when a high voltage is applied across the gap. In the second position, the tip makes direct contact with the port ribbons to initiate the spark discharge. The handle is spring-biased to return the tip to its normal position when the handle is released.



Non-contaminating fuel burner

United States Patent 4,130,388
Flanagan December 19, 1978
Non-contaminating fuel burner

A fuel burner adapted to produce a stable, non-contaminating blue flame throughout a broad operating range. The burner includes a combustion zone into which is directly fed the combustion air. Air-atomized liquid fuel is fed into the combustion zone through a Venturi whose constricted throat communicates by way of a feedback passage to the combustion zone, whereby the ejector effect produced by the atomized fuel passing through the Venturi causes a portion of the hot combustion gas generated in the combustion zone to be drawn into the throat to intermix with the atomized fuel therein, thereby pre-vaporizing the fuel to insure full combustion thereof.



Conveyor system for passing coated cans through chamber

United States Patent 4,050,888
Pfister , et al. September 27, 1977
Conveyor system for passing coated cans through chamber

A conveyor system for conducting cans which are freshly coated with an ink or other coating through a chamber to dry or cure the coating, the chamber being provided with an energy-emitting source adapted to dry or cure the coating. In order to effect uniform exposure of the cans which are subjected to directed energy from the source, the system includes an endless link belt having a train of pins thereon which extend laterally into the chamber to support the cans, the belt being driven at a controllable speed to advance the cans through the chamber. Also included is an endless sprocket chain which cooperates with sprocket wheels mounted on the outer ends of the pins to cause the pins and the cans supported thereby to rotate as the cans advance through the chamber, the sprocket chain being driven in a selected direction and at a controllable speed relative to the speed of the belt, whereby the direction of can rotation and the rotary rate thereof are adjustable to optimize the drying or curing of the cans.



Direct flame apparatus for drying can coatings

United States Patent 4,042,317
Flynn August 16, 1977
Direct flame apparatus for drying can coatings

Direct-flame apparatus for drying coatings applied to the outer surface of metal cans. The apparatus includes a conveyor adapted to advance the cans in a continuous train through a tunnel having a series of direct-flame assemblies mounted therein, whereby each can in the course of its advance is progressively heated by the assemblies to cause the cans to emerge from the tunnel in a dried state. Each assembly is constituted by a gas-fed burner element and a hood placed thereover, the element emitting a sheet of flame which impinges on the coated surface and is flanked by curtains of air issuing from the hood at a velocity serving to confine the applied heat within a limited sector of the can and to prevent flashing of the coating despite the high temperature of the flame impinging thereon.



Automatic carton sealing system

United States Patent 3,977,306
Flynn August 31, 1976
Automatic carton sealing system

An automatic carton sealing system in which sealing is effected by the direct application of a gaseous flame to the surfaces to be sealed. In the system, an unsealed carton formed of paperboard stock coated with a thermoplastic layer and having a flap which extends outwardly with respect to a folded-in flap to define an open shed, is conveyed past a gas burner whose flam is projected into the shed to soften the layers on the flaps, the carton then passing through compression rollers which press the flaps together as the overlapping layers cool and harden to effect a bond therebetween. Included in the system is a conveyor-failure interlock acting to shut off the fuel mixture to the burner should conveyor movement be arrested, and a flame-failure interlock acting to arrest the conveyor should the flame be extinguished.