Grate assembly

a technology of grate and assembly, which is applied in the direction of solid bar grate, combustion process, light and heating apparatus, etc., can solve the problems of poor air circulation throughout the pile, incomplete combustion of a pile of wood pellets, and substantial fir

Inactive Publication Date: 2010-09-30
PALMER BRADLEY C
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0006]For the foregoing reasons, there is a need for a grate assembl...

Problems solved by technology

Because the wood pellets are relatively small, a large number is required in order to result in a substantial fire.
In a traditional wood stove, however...

Method used

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Examples

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Embodiment Construction

[0019]Although other applications may be envisioned for the present invention, the application of the present invention is particularly advantageous for efficiently burning wood pellets. It will be appreciated by one skilled in the art that the present invention may also be used to burn pellets made of other biomaterials such as corn, switchgrass, or organic waste. Accordingly, without intending to limit the present invention to the embodiments described herein, the invention will be described below in further detail having regard to the system and in particular the varied assortment and arrangement of devices used in that system as shown in the attached drawings.

[0020]Reference is made to FIGS. 1A-5 to describe an embodiment of a grate assembly in accordance with the invention indicated generally by the numeral 20. The grate assembly 20 is for guiding air into a pile 22 of combustible wood pellets 24 for combustion thereof (FIGS. 3, 4). The grate assembly 20 preferably includes a s...

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Abstract

A grate assembly for guiding air into a pile of combustible wood pellets for combustion thereof. The grate assembly includes a structural subassembly having at least two sets of elongate members, a first one of the two sets forming a lower layer for at least partially supporting a second one of the two sets forming an upper layer. The grate assembly also includes a support element attached to the structural subassembly. Each member includes a body at least partially defining one or more channels and a number of holes in fluid communication with the channel(s) to guide air into the pile of the wood pellets. The support element includes a base portion with a plurality of apertures, for ignition of the pellets therethrough

Description

[0001]This application is a continuation-in-part application of prior application Ser. No. 12 / 411,545, filed Mar. 26, 2009. This application hereby claims priority from such prior application and incorporates such prior application in its entirety by reference.FIELD OF THE INVENTION[0002]This invention is related to a grate assembly for guiding air into a pile of wood pellets for combustion thereof.BACKGROUND OF THE INVENTION[0003]Wood pellets, primarily made of compacted sawdust and wood chips, are commonly used as fuel in various burner and / or stove devices. The pellets are generally cylindrical or round and relatively small (e.g., between about ¼ and 1½ inches long, and about ¼ inch in diameter). The pellets typically have water content of less than about 10 percent. During the formation of the pellets under pressure, lignin in the sawdust and wood chips plastifies to a limited extent, and the lignin serves to hold the pellet materials together. With increases in the costs of var...

Claims

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Application Information

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IPC IPC(8): F23H17/00
CPCF23B60/02F23H13/00F23H1/06F23H1/02
Inventor PALMER, BRADLEY C.
Owner PALMER BRADLEY C
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