Burner assembly with tight shut-off opposed louver air damper

Details Burner assembly with tight shut-off opposed louver air damper Burner assembly with tight shut-off opposed louver air damper

F - Mech Eng,Light,Heat,Weapons

23

L

F23L 13/04 (2006.01)

Patent

CA 2202964

An opposed louver air damper apparatus for controlling the flow rate of combustion air to a burner fire box, comprising a plurality of adjacent, rotatable louvers having rubber tips and side gaskets providing sealing between the louvers and a frame, and geared responsive shafts supporting the louvers for controllably rotating the louvers to determinative positions to modulate the volume of air passing through the louver apparatus, wherein the gears in meshing engagement precisely maintains the relative position of the louvers, and the gaskets operate to minimize undesirable leakage through the air damper. The gears form teeth in arcuate portions of the full circumference to limit the rotational movement to only that within the toothed portion of the gear.

Régulateur d'air avec louvres opposés permettant de régler le débit de l'air de combustion qui alimente la chambre de combustion d'un brûleur comprenant de nombreux louvres adjacents orientables, aux extrémités en caoutchouc, des joints statiques latéraux assurant l'étanchéité entre les louvres et un cadre, et des tiges à dentures adaptables servant d'appui aux louvres et permettant de commander leur orientation dans des positions déterminées afin de modifier le volume d'air passant à travers le régulateur. Les engrenages, lorsqu'ils sont enclenchés, permettent de maintenir la position relative parfaite de chacun des louvres, et les joints statiques réduisent les fuites indésirables au minimum. Les engrenages ont des dents sur certaines portions arquées de leur circonférence, ce qui limite le mouvement de rotation seulement aux portions dentées de l'engrenage.

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