Abstract: A vaporizing burner combustion chamber assembly unit, especially for a vehicle heater, includes a bottom part (32) with a bottom wall (34) and with a first circumferential wall (38) and a porous evaporator medium (42) at least partially covering a front side of the bottom wall, which is to face a combustion chamber (14). A ring-shaped holding part (52) has a second circumferential wall (54) and a contact area (56) touching the porous evaporator medium. The first circumferential wall extends, from an outer edge area (36) of the bottom wall essentially in a longitudinal axis (L) direction of a bottom assembly unit (30), on a rear side of the first bottom wall facing away from a combustion chamber, in the direction away from the porous evaporator medium. The second circumferential wall extends at least partially over the first circumferential wall on its outer side and is fixed to same.

Abstract: A combustion chamber assembly unit, especially for a vaporizing burner and particularly especially for a vehicle heater, includes at least two combustion chamber elements (12, 20, 26, 32, 50, 52, 64, 102, 126) with wall areas (12, 34, 46, 54, 64, 104, 130, 140, 142). The at least two combustion chamber elements are arranged in a radially staggered pattern in relation to a longitudinal axis (L) of the combustion chamber and are fixed to one another by laser welding.

Abstract: A bottom assembly unit for a vaporizing burner combustion chamber assembly unit, especially for a vehicle heater, includes a bottom part (24) with a bottom wall. A porous evaporator medium (44) at least partially covers the bottom wall on a front side (42) positioned such that it faces a combustion chamber (20). A ring-shaped holding part (34) has a contact area (40) touching the porous evaporator medium (44). The contact area has a contact section (62) extending radially inwardly from a holding part circumferential wall (36) and extends over the porous evaporator medium (44) in a radially outer area (66). A plurality of contact projections (68) are arranged at spaced locations from one another about the longitudinal axis and extend in the direction of the porous evaporator medium. The porous evaporator medium (44) is pressed by the contact projections (68) in a radially outer area (66) against the bottom wall.

Abstract: An evaporator burner for a mobile heating device is provided having a combustion chamber, an evaporator accommodation, and an evaporator element for evaporation of liquid fuel. The evaporator element is accommodated in the evaporator accommodation at the side facing the combustion chamber. At the side of the evaporator accommodation facing away from the combustion chamber, the evaporator burner comprises at least one combustion air guide element which is arranged such that a combustion air flow path extending at least along a portion of a base wall of the evaporator accommodation is formed between the combustion air guide element and the base wall of the evaporator accommodation.

Abstract: The invention relates to a combustion method which is performed in a furnace that is equipped with energy recovery means and burners, whereby the heat from the combustion fumes is recovered by energy recovery means and said recovered heat is used in order to heat the air. According to the invention, at least part of the burners performs the combustion of an oxygen-rich comburent and a fuel and at least part of the air heated by the energy recovery means is used to heat the oxygen-rich comburent and/or fuel for the burners.

Abstract: A device and method of preheating oil for use in a multi oil burner that uses a heated liquid to convey heat energy to oil. The device is made of a thermally conductive material which has a passageway for oil and a passageway for a heated liquid. Heat energy from the heated liquid conductively transfers to the oil within the device. This method of preheating oil for combustion eliminates carbon creation and minimizes oil preheat temperature fluctuations thereby significantly lowering the cost and maintenance to operate a multi oil combustion system.

Abstract: A combustion apparatus for operation with a fuel which is liquid at room temperature, in particular with a vegetable oil, wherein the combustion apparatus includes an evaporator device for evaporating the liquid fuel and a nozzle for ejection and for flame ignition of the evaporated fuel. The evaporator device is disposed in fluid communication with a fuel tray for preheating the evaporator device for a start of operation.

Abstract: A process for combustion with the aid of a liquid fuel and a gaseous oxidizer containing from 20% to 100% volume of oxygen, in which the fuel is injected with the aid of an injector. The injector, which has a height “d”, is placed inside a glory hole. The glory hole has a height “D” at the end thereof corresponding to the ejection of the gaseous mixture towards the zone of heating of a charge. A coefficient “S” in the following equation is maintained at a value less than or equal to 1 for substantially the entire duration of combustion to ensure the stability of the flame.

Abstract: On the one hand is provided an electric heating element (15, 31) consisting of a semiconducting ceramic (28, 32) as well as a method for its production. The semiconducting ceramic material may be porous or foamed to thus contain pores (29, 34) open outwardly. The pores are attainable by admixing filler bodies, which dissolve during sintering, to the starting material or by impreganting a textile substrate material (36) with a ceramic material. Due to the porosity of the heating element (15, 31) an increased radiant surface area is attained. On the other hand is provided an electric heating element (115, 132, 145, 150, 158, 160, 162) as well as a method for its production which consists of semiconducting ceramic and comprises a negative temperature coefficient of the electrical resistance. The temperature coefficient is negative throughout over the full operating temperature range. The material suitable for the heating element (115, 132, 145, 150, 158, 160, 162) is doped silicon carbide or TiN.

Abstract: Method and apparatus to prevaporize and premix liquid and/or gaseous fuels with air in two stages at two different temperatures prior to combustion. The invention is directed to the entry of a finely atomized liquid fuel, such as No. 2 diesel, into an inlet end of an annular chamber. Air is mixed with finely atomized liquid fuel, preferably generated by a small flow number liquid fuel nozzle, in a first chamber of the annular chamber at a first (relatively high) temperature for a relatively long residence time. The air and liquid fuel is moved into a second chamber of the annular chamber where a secondary hotter air is injected into the annular chamber by a plurality of staggered high velocity jets to prevaporize and premix the combined fuel and air mixture at a second higher temperature, but for a shorter time. The intense prevaporization and premixing make the mixture suitable for entry into a combustor, but without the need to add water or steam to keep pollutant emissions low.

Abstract: A device for dispensing a volatile substance includes a gas-fueled, portable heat source. The device includes a catalyst support structure to flamelessly combust liquid or gaseous fuel and thereby provide a lower temperature heat source than a heat source that combusts fuel via flame. The fuel is ignited inside the catalytic support structure by a spark electrode. A spark jumps from the electrode to an interior surface of the structure and ignites the fuel inside the structure, causing a flame to propagate. The flame heats the catalytic structure to an activation temperature, after which the fuel is combusted flamelessly on the surface of the catalytic structure. The device includes a heating plate for heating the volatile substance and for receiving heat from the catalytic structure. A heat box substantially surrounds the catalytic structure and heating plate. The heat box has a window through which volatile substances released from the heating plate may escape.

Abstract: A method and apparatus for the combustion or gasification of highly viscous nd/or suspended fuel in a burner flame. The fuel is introduced, in a nozzle, and in the form of a continuous, thin, annular layer, into a stream of atomizing medium, with the aid of which the fuel is atomized. The fuel is guided onto the inner wall of the nozzle as a continuous film at a velocity that is low with regard to wear action. The fuel is atomized at a terminal portion of the nozzle that has a knife-edge configuration. The fuel and the atomizing medium stream that flows within the annular film discharge at a minor resonant velocity.

Abstract: A liquid fuel burner for burning liquid fuel in the form of a gaseous mixture with air. The liquid fuel burner has a porous member provided at least with a fuel receiving section for receiving the liquid fuel supplied to the burner and a fuel evaporation section from which the liquid fuel is evaporated. An air supplying device is provided for forcibly supplying air to the fuel evaporation section. The rate of air supply is varied by means of a damper or like means. Heating means are provided for maintaining the fuel evaporation section at a substantially constant temperature. The rate of burning is varied while maintaining the air-fuel ratio of the mixture substantially constant, because the rate of evaporation of the fuel is almost in proportion to the rate of supply of air to the fuel evaporation section. The heating means facilitates the evaporation of the fuel and permits a rapid rise and stabilization of burning after ignition.

Abstract: A burner apparatus is specially designed for vaporized fuels such as alcohol vapor for use by campers, aboard small boats, in vans, and the like. Extremely efficient combustion is achieved by an annular air/fuel mixer plate with a plurality of circular openings facing upwardly positioned above an annular vapor generator member having an annular cavity with fuel outlet ports passing through the top wall of the cavity in positions spaced vertically below and in axial alignment with the circular openings in the air/fuel mixer plate, respectively. A liquid fuel line communicates with the interior portion of the cavity for introducing liquid fuel therein and once combustion has started, the fuel is vaporized to pass out the fuel openings.

Abstract: Liquid fuel is distributed in a fluidized bed of refractory particles through the gas constriction plate of a fluidized bed incinerator. The fuel is supplied from a distribution system of circulation pipes situated well below the constriction plate and passed to the fluidized bed through risers by means of a small amount of driving agent, preferably steam, of high pressure supplied from a separate distribution system independently of the primary combustion air and the fluidizing gas. The driving agent and the fuel are passed into the risers through nozzles at the lower end of the risers.

Abstract: A process and apparatus for the production of heat, equivalent in clarity and cleanliness to that of propane, butane or natural gas, but at a lower cost and without the problems or dangers of storage nor risks of fire or explosion during handling, by means of the instantaneous combustion of diafanous liquid petroleum, diesel or other similar combustible fuels mixed with compressed air in an environment which is neither contaminated nor degraded. Thus, it is possible to regulate the flow and simultaneously divide each volume of combustible liquid into particles so small that they distribute and integrate themslves homogenously in a volume of air proportionally adequate for proper combustion.