RECIRCULATING-GAS HEAT GENERATOR Russian patent published in 2000 - IPC

FIELD: coolant generation by mixing. SUBSTANCE: heat generator has casing accommodating coaxially arranged tubular shells, fully metal gas burner provided with two air inlets, fan with extension piece and mounting flange. Chosen proportion of diameters of internal shell and extension piece is 2.2-1.5 and that of internal shells is 1.5-1.2. Water pipe is built in front edge of internal shell along air flow; air ports are provided on periphery of mounting flange for efficient cooling of generator casing. EFFECT: optimized vacuum in working space, improved reliability and facilitated servicing of burner. 3 cl, 2 dwg