DEVICE FOR EXTRACTING FLUE GASES FROM FUEL COMBUSTION CHAMBER AT MOMENT OF OPENING THE DOOR Russian patent published in 2021 - IPC F23J11/00 F24B1/185 F23M7/00 

FIELD: stoves, boilers, fireplaces design.

SUBSTANCE: invention relates to the design of stoves, boilers, fireplaces and their elements. This invention can be used in the development of heating devices with a firebox, the design of which provides for circulating smoke removal. The device contains a gate valve, which includes a gate and a gate positioning unit, while the gate, installed between the chimney channel and the fuel combustion chamber, is a metal plate fixed from the inside of the pivot door, perpendicular to it or almost perpendicular to it and with the ability to rotate together with the door. The positioning unit is made at the level of the gate and is a groove formed by guides on at least one side along the perimeter of the section of the straight chimney duct.

EFFECT: preventing gases from entering the room when opening the loading swing door.

2 cl, 5 dwg