SWIRL TYPE HEATER Russian patent published in 1999 - IPC

FIELD: liquid heater, possibly in systems for heating buildings and erections, transport vehicles, heating up water for industrial and domestic purposes, at drying agricultural products. SUBSTANCE: swirl type heater includes inner cylindrical envelope in one end of which liquid motion accelerator is arranged. Liquid motion accelerator is in the form of cyclone whose input branch pipe is designed for joining with pump output. Additional outer envelope is arranged around inner one. Helical duct is formed between said envelopes. First envelope has slits in its end opposite relative to liquid motion accelerator. Slits are designed for feeding liquid from first envelope into helical duct. There is output branch pipe in additional envelope at side of liquid motion accelerator. EFFECT: enhanced liquid heating due to use of positive heat feed back. 4 cl, 1 dwg