BOILER OF LIQUID HEATER Russian patent published in 2010 - IPC F22B7/00 F24H1/24 

FIELD: engines and pumps.

SUBSTANCE: boiler of liquid heater is made in the form of heat exchanger having outer and inner liquid jackets, flue with open outlet edge on the bottom side of the boiler forming together with inner wall of outer liquid jacket an annular gas channel with combustion product outlet connection pipe, inlet connection pipe of heated liquid and outlet connection pipe of heated liquid through outer liquid jacket, and attachment flange of burner device. Inner liquid jacket located between outer liquid jacket and flue is made in the form of annular coaxial tube and interconnected with outer liquid jacket by means of two or more openings. A gap is made between front edge of inner liquid jacket and attachment flange of burner device, which forms an annular gas collector for discharge of combustion products.

EFFECT: compact boiler of liquid heater, decrease of weight characteristics and reduction of the time for engine warming-up during winter period.

6 cl, 3 dwg