Abstract: A combustion chamber with an evaporator that projects into the combustion zone of the flame tube and includes a coaxial channel and to which air and fuel are supplied separately; a deflection surface is thereby arranged at the end of the evaporator channel which deflects the fuel/air mixture on all sides essentially opposite to the main flow direction prevailing in the channel; an annular channel partly surrounding the evaporator channel adjoins the deflection surface which is in communication by way of discharge openings with a mixing zone disposed upstream of the combustion zone, as viewed in the main flow direction; the mixing zone is formed by an annular space between an outer wall of the evaporator and an intermediate wall of the flame tube, in which are arranged radial webs within a first and a second plane, whereby the discharge openings of the annular channel terminate between the radial webs.

Abstract: A flameless catalytic combustion apparatus includes a combustion chamber with a hydrogenous fuel inlet and a mass of catalyst in the chamber between the inlet and an outlet. Preferably the catalyst mass comprises porous pellet bodies supporting varying high and low concentrations of platinum family metals dispersed therein. For spontaneous starting of combustion the fuel is one of the lower alcohols and the high catalyst concentration is at the fuel inlet. The fuel may be in a container pressurized by air, or a lower ether or lower hydrocarbon which is also a fuel. Preferably separate, valved conduits from the fuel container first supply either atomized fuel droplets or air and fuel vapor to the high catalyst concentration for spontaneous ignition of combustion and vaporized fuel for continued combustion throughout the catalyst mass. The catalytic combustion apparatus may include a heat exchanger for fluids such as air, water or personal care foams and creams, or may be used in heating and cooking apparatus.

Abstract: A hot gas generator for the production of hot combustion gases includes a cylindrical combustion chamber having an inner and an outer air conduit concentrically disposed thereabout. A fuel nozzle means is arranged at one longitudinal end of the cylindrical combustion chamber and an exhaust port is arranged at the other longitudinal end thereof. A baffle plate is disposed on the longitudinal end of the cylindrical combustion chamber on which the fuel nozzle means is arranged. Combustion air from a blower or the like flows through the outer air conduit into the inner conduit where it is heated by the cylindrical combustion chamber and then passes through openings in the baffle plate into the cylindrical combustion chamber.

Abstract: A burner wherein a fuel gasifying member is non-rotatably mounted in a main body of the burner and maintained in communication with a gas chamber formed in an outer marginal portion of the main body of the burner, and liquid fuel scattering means is rotatably mounted at an open end portion of the fuel gasifying member for scattering a liquid fuel in minuscule particles into the interior of the fuel gasifying member and the main body of the burner through a scattering gap. The liquid fuel thus scattered in the main body is ignited and burns to heat the fuel gasifying member in which the fuel supplied by the liquid fuel scattering means under the influence of an air blast supplied under pressure through an air supply duct is quickly gasified and forms a mixture of gasified fuel and air which is ejected through the gas chamber to sustain combustion of the liquid fuel in gasified form. A cooling chamber may be provided adjacent an inner wall plate of the main body of the burner.

Abstract: This invention combines specific new and novel equipment with the equipment of a conventional combustion system for the use of liquid fuel oil to create a new system which converts the liquid fuel into gas and operates as a gas burner rather than as a liquid oil burner. The new and novel equipment thermally cracks liquid hydrocarbons into gaseous hydrocarbons which have substantially lower molecular weights than the liquids from which they were cracked. In the system the burner apparatus itself is modified to burn gas rather than liquid. In this new system the fuel burned does not consist of vapors of the liquids supplied to it but instead operates on the products of decomposition derived from the liquids.