Self concentrating combustion grate for pellet fueled stoves
AssigneePyro Industries, Inc.
InventorOliver J. Whitfield
Life of this patent
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Abstract
Stoves fueled by biomass pellets are provided with a grate assembly that supports the pellets for combustion and directs combustion gas into the fire. The grate assembly includes a passive grate of equally or unequally spaced rods. The design of the rods serves to prevent the ash and clinkers from accumulating on the grate in amounts that could reduce the flow of combustion gas into the fire. In one embodiment, the rods define a trough in which unburned fuel pellets are concentrated.
Claims24
A grate assembly for use in a stove fueled by biomass pellets, the grate assembly comprising:
- a plurality of elongate rods positioned in a parallel arrangement, the distance between adjacent rods being sufficient to prevent unburned biomass pellets from falling between adjacent rods;
- and
- a trough defined by the elongate rods for concentrating the unburned biomass pellets.
A grate assembly for use in a stove fueled by biomass pellets, the grate assembly comprising:
- a plurality of elongate straight rods positioned in a parallel arrangement, the distance between adjacent rods being sufficient to prevent unburned biomass pellets from falling between adjacent rods;
- and
- a trough defined by the elongate straight rods for concentrating the unburned biomass pellets.
Dependencies are inferred from the claim text.