Abstract: The present invention describes a novel reactor adapted for carrying out chemical reactions at temperatures of up to 1600° C., and at pressures of up to 100 bars. The reactor of the invention has two vessels surrounding the reaction zone, an inner vessel constituted by a refractory material and an outer vessel surrounding the inner vessel and constituted by an insulating material.

Abstract: An gas burner assembly for a cooking appliance includes a main burner assembly, a simmer burner assembly positioned in a stacked relationship with and located below the main burner assembly, a venturi assembly for delivering a gas flow to the main burner assembly, a gas boost pump configured to control a pressurization of the gas flow, a gas valve assembly for controlling a rate of the gas flow, and an encoder coupled to the gas valve assembly, the encoder configured to track a position of the gas valve assembly and provide a signal to the gas boost pump for pressurization of the gas flow.

Abstract: A rotary kiln burner particularly for fine-grained solid fuels such as coal dust, with jet air nozzles which can be adjusted easily and effectively during operation of the kiln in order to change the divergence angle of the high-speed jet air streams to change the flame shape and optimize the combustion. The jet air nozzles are attached with the nozzle openings divergent to the burner axis at the end of jet air pipes. The nozzle openings are arranged around the burner axis, with the axes parallel, with the jet air pipes arranged inside an annular cooling air space surrounding the coal dust channel and enclosed on the outside by the burner housing pipe.

Abstract: The invention relates to a radiant gas burner device comprising a first cylindrical chamber (1) and a first injector (2) for feeding the first chamber with a combustible gas mixture, the first chamber (1) comprising an external peripheral heating surface (10). The device of the invention further comprises a second cylindrical and hollow second chamber, and a second injector (4) for feeding the second chamber with a combustible gas mixture, the second chamber being positioned inside the first chamber (1), separated from the first chamber by a sealed wall, and having an internal heating surface (30), and the first and second injectors (2, 4) being designed for separately feeding the first and second chambers, independently of each other.

Abstract: A variable orifice combustor unit 10 comprises an annular combustion chamber 12 extending about a central axis 14 and ending in a discharge nozzle 16. Charging of the chamber 12 takes place from combustion fuel and air supply chambers 18 and 20 via a fuel charging orifice array 22 and an air charging orifice array 24. The orifices 28.1, 28.2 of the orifice arrays 22, 24 are positioned and slanted at the same forward angle in the direction of the nozzle 16 to the effect of their central axes 38, 40 cutting along the longitudinal centre of the combustion chamber 12. The cross sectional sizes of the orifices 28 are adjustable by means of an orificed displaceably mounted cyndrically shaped covering body 44 for the fuel charging side and an orificed cylindrical body 58 for the air charging side both being displaceable in the direction of the axis 12.

Abstract: A burner has a body portion and a main outlet. Fuel and primary oxidant outlets are arranged upstream of the main outlet and are disposed substantially concentrically about the axis of the burner. A chamber inside the body portion provides a place for the mixing of the fuel and oxidant. A laval nozzle provides acceleration of the mixed fuel and oxidant. Particulate matter are injected into a secondary oxidant flow immediately adjacent and downstream of the accelerating nozzle. The burner can be used in an electric arc furnace for decarburization of metals as well as post combustion. The burner can be mounted in a water-cooled box and can be fitted with an oxygen port for extra oxygen for post combustion while the burner injects hot oxygen and carbon for slag forming.

Abstract: A gas burner for cookers, having an outer burner ring which encloses an inner chamber and whose external periphery is formed with gas outlet openings producing the main flame, an ignition plug and a thermal element which extend into the inner chamber; an inner burner spaced radially inwardly from the outer burner ring and coaxial with the outer ring forming with chamber bottom and limited by the outer ring and to which air for the inner burner is supplied via openings disposed below the burner ring and above the chamber bottom.

Abstract: A fire-extinguishing device for an open-type oil burner is disclosed which is capable of effectively preventing the discharge of bad odor to a room due to unburned fuel oil gas at the fire-extinguishing of the oil burner. The fire-extinguishing device includes a damper for closing, at the fire-extinguishing, an opening of a combustion cylinder construction of the oil burner through which combustion gas is discharge to a room. The damper or combustion cylinder construction may be provided with an oxidation catalyst plate through which combustion gas is discharged to a room at the fire-extinguishing, so that unburned fuel oil gas may be removed by means of the catalyst plate.

Abstract: An oil stove comprises a combustion wick for burning oil, a device for extinguishing the fire at the combustion wick, and a deodorizing device for absorbing or removing gases causing smells produced when the burning portion at the combustion wick is extinguished. The deodorizing device comprises gas sensing means for detecting the generation of the gas, and suction means responsive to the gas sensing means for absorbing or removing the gas.

Abstract: Large numbers of vent holes are respectively formed in inner and outer flame cylinders defining an annular combustion chamber to supply air thereto. A total opening area of the vent holes formed in the outer flame cylinder is greater than that of the vent holes formed in the inner flame cylinder. As a result, the heat capacity of the outer flame cylinder is smaller than that of the inner flame cylinder. During combustion, the outer flame cylinder is heated to red-hot. A plurality of projections are formed on the outer wall surface of the inner flame cylinder to allow complete combustion of a fuel vapor.

Abstract: A combustion cylinder construction for an oil burner is disclosed which is adapted to adjust combustion while preventing the adhesion of soot, moisture and the like on the inner surface of a heat-permeable cylinder to keep it clean during combustion. The combustion cylinder construction includes a first heat-permeable cylinder and a second heat-permeable cylinder supported on the first heat-permeable cylinder with a gap being defined therebetween which serves to introduce air from the exterior therethrough to the overall inner surface of the second heat-permeable cylinder.

Abstract: A combustion cylinder construction for an oil space heater of the type for radiating heat rays is disclosed which is capable of uniformly red-heating an outer surface of an outer cylindrical member of a double combustion cylinder and efficiently radiating heat rays from the red-hot outer surface and is capable of completely burning an incomplete combustion gas and the like at a flame spreader to form a white-yellow flame and efficiently radiating heat rays from the flame. The outer cylindrical member has through-holes larger than those of an inner cylindrical member and is provided at the upper portion thereof with a recess having through-holes. The combustion cylinder and flame spreader are surrounded by a single heat-permeable cylinder.

Abstract: A warming apparatus uses a gas burner which comprises a burner body and a plurality of tubular flame nozzles projecting radially from the burner body. The tubular nozzles have an internal diametr which ranges from about 1 mm to about 4 mm, and the projecting length of the tubular nozzles which extends from the burner body is within a range of from about 10 mm to about 40 mm. The nozzles have axially directed nozzle openings. The warming apparatus comprises the gas burner in combination with first and second radiators and a heat interception plate positioned between the burner body and the radiators.