Hot gas generator

A hot gas generator for the production of hot combustion gases from liquid fuel comprising a cylindrical combustion chamber, an inner air-feed cylinder concentrically disposed about said cylindrical combustion chamber, an inner air conduit between said cylindrical combustion chamber and said inner air-feed cylinder, an outer air-feed cylinder concentrically disposed about said inner air-feed cylinder, an outer air conduit between said inner and outer air-feed cylinders, fuel nozzle means arranged at one longitudinal end of said cylindrical combustion chamber, an exhaust port arranged at the opposite longitudinal end of said cylindrical combustion chamber, said inner and outer air conduits communicating with one another at the exhaust end of said cylindrical combustion chamber, guide means disposed on one longitudinal end of said inner air-feed cylinder for imparting a rotary motion to the air passing into said inner air-feed cylinder from said outer air-feed cylinder, said inner air conduit and the inside of said cylindrical combustion chamber communicating with one another at the end of the cylindrical combustion chamber on which the fuel nozzle means is arranged, said outer air conduit receiving combustion air from a blower or the like, a baffle plate disposed on the longitudinal end of said cylindrical combustion chamber on which the fuel nozzle means is arranged, said baffle plate having a central opening for the introduction of fuel from said fuel nozzle means, said baffle plate having a plurality of opening means for combustion air to pass from said inner air conduit to the inside of said cylindrical combustion chamber, said opening means imparting a rotary motion to the air passing into said cylindrical combustion chamber, said latter rotary motion being imparted to the air relative to the longitudinal axis of said cylindrical combustion chamber.