Excess-air premix gas burner for gas heating devices

摘要

The burner has as outlet for the fuel/air mixture an uncooled perforated burner plate (6) which, with rectangular shape, is gently curved in the manner of a cylindrical casing and is held along all four edges in the burner housing (1, 4, 5) by a frame-like enclosure (9, 11, 12), in which the burner plate (6) is movable longitudinally expandably in all directions and which encloses the edges of the burner plate (6) so as to seal against blowbacks. IMAGE