Abstract: A improved burner for metallurgical furnaces capable of utilizing gaseous or liquid fuels and air, enriched air or oxygen as an oxidant and adapted to accommodate rich fuel/oxidant mixtures is disclosed. The burner is capable of producing high temperatures and a reducing and non-decarburizing atmosphere without causing carbonization or other fouling of the burner or related furnace and without damaging the burner.

Abstract: A burner for liquid fuels, of the type which is driven with an approximately stoichiometric quantity of air, having switchover means associated with an air feed pipe for causing the combustion air to be set into turburlence during starting but allowing the combustion air to flow without turbulence during continuous operation.

Abstract: The disclosed method and apparatus for producing heat make use of a fuel/oxygen/water mixture in a reaction zone to provide unusually high temperature effluent gases.

Abstract: An inshot, atmospheric burner assembly is provided for hot air furnaces including a frame supporting a venturi assembly, an adjustable secondary air shutter and a circular target or flame spreader. The flame spreader is positioned adjacent the outlet of the venturi assembly. An orifice holder extends through the base of the frame and adjustably carries a primary air shutter.

Abstract: A fuel gas burner adapted for mounting in a heat treating furnace and for generating a relatively large expanse of radiant energy toward an object to be heated or heat treated. The burner has a housing with separate inlets for fuel gas and air and an air plenum with a forwardly facing throat. Surrounding the plenum throat is a combustion block formed of refractory material shaped to define a forwardly-facing frusto-conical heat radiating surface. A central fuel gas supply tube coaxial with the plenum throat has a nozzle element and a cooperating distributor mounted on its forward end to define with the plenum throat an annular air passage and a fuel gas chamber communicating with the supply tube. The nozzle element has radially extending circumferential vanes that define with the plenum throat, swirl producing slots adapted to receive air from the plenum chamber through the annular passage and fuel gas through ports communicating with the fuel gas chamber.

Abstract: A device for vaporizing liquid fuel supplied to a furnace chamber. The device comprises a tubular structure having one end adapted to extend into the chamber, and, a plate located over said end, the tube and plate being made of heat resistant materials. Openings are provided in the wall of the tube at locations adjacent and in communication with the plate, the tube being adapted to receive liquid fuel for direction to the plate; the plate, in turn, is adapted to vaporize drops of liquid fuel striking the plate.

Abstract: Apparatus for improving the operation of oil-fired boilers comprising an oil burner and a combustion chamber the wall zone of which is provided with water-conducting cavities and longitudinal and transverse bores or recesses disposed in the combustion chamber at a specific distance in front of the wall situated opposite to the oil burner.

Abstract: A cooking system includes a frypot comprising heat transfer walls which are spaced to facilitate cleaning of the frypot. Each heat transfer wall comprises a lower vertically extending portion and an upper outwardly curved portion shaped to cause wastes to flow to the bottom of the frypot. A plurality of burners are provided for maintaining combustion in zones adjacent to the vertically extending portions of the heat transfer walls. This causes heated products of combustion to flow upwardly along the vertically extending and outwardly extending portions of the heat transfer walls, whereby heat transfer is effected through the walls to cooking oil in the frypot. Each burner comprises two or more orifices for discharging mutually interacting gas jets and a target for deflecting the gas jets and entrained air toward the heat transfer walls and for reflecting heat into the combustion zone and through the heat transfer walls.

Abstract: A cooking system includes a frypot comprising heat transfer walls which are spaced to facilitate cleaning of the frypot. Each heat transfer wall comprises a lower vertically extending portion and an upper outwardly curved portion shaped to cause wastes to flow to the bottom of the frypot. A plurality of burners are provided for maintaining combustion in zones adjacent to the vertically extending portions of the heat transfer walls. This causes heated products of combustion to flow upwardly along the vertically extending and outwardly extending portions of the heat transfer walls, whereby heat transfer is effected through the walls to cooking oil in the frypot. Each burner comprises two or more orifices for discharging mutually interacting gas jets and a target for deflecting the gas jets and entrained air toward the heat transfer walls and for reflecting heat into the combustion zone and through the heat transfer walls.