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US 4,422,437 AGranted
Catalytic firebox
OwnerDareld A. Hirscheyinventor
Life of this patent
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OwnerDareld A. Hirscheyinventor
Estimating the term…
A housing is provided defining a closed lower combustion chamber and a closed upper afterburn chamber disposed immediately above the combustion chamber with one marginal portion of the combustion chamber projecting horizontally outwardly beyond the corresponding marginal portion of the afterburn chamber. A combined flue gas and bypass chamber is disposed above the one marginal portion of the combustion chamber and is horizontally registered with the afterburn chamber. Partition structure divides the combined flue gas and bypass chamber into central and remote end portions spaced along the aforementioned one marginal portion and a pair of first ports communicate the remote portions with adjacent underlying upper portions of the combustion chamber, a pair of second ports communicate the remote portions with adjacent portions of the afterburn chamber and third port structure communicates the central portion of the afterburn chamber with the central portion of the combined chamber. Further, fourth port structure communicates the central portion of the afterburn chamber with an underlying central upper portion of the combustion chamber. Catalytic combuster structure is disposed in the first ports and damper structure is operatively associated with the fourth port structure for variably opening and closing the latter. Flue gas outlet structure opens outwardly of the central portion of the combined chamber, combustion air inlet structure opens into the combustion chamber and supplemental combustion air inlet structure opens into the combustion chamber closely adjacent the combuster structure.
A catalytic firebox including a housing defining a closed lower combustion chamber, a closed upper afterburn chamber disposed above said combustion chamber with one marginal portion of said combustion chamber projecting horizontally outwardly beyond the corresponding marginal portion of said afterburn chamber and a combined flue gas and bypass chamber disposed above said one marginal portion of said combustion chamber and horizontally registered with said afterburn chamber, means dividing said combined chamber into central and remote portions spaced along said one marginal portion, a pair of first port means communicating said remote portions of said combined flue gas and bypass chamber with corresponding remote upper portions of said combustion chamber, a pair of second port means communicating said remote portions of said combined flue gas and bypass chamber with corresponding remote portions of said afterburn chamber, third port means communicating a central portion of said afterburn chamber with said central portion of said combined flue gas and bypass chamber, fourth port means communicating said central portion of said combined flue gas and bypass chamber with a central upper portion of said one marginal portion of said combustion chamber, and catalytic combuster means disposed in said first port means, damper means operatively associated with said fourth port means for variably opening and closing the latter, flue gas outlet means opening outwardly of said central portion, combustion air inlet means opening into said combustion chamber, and supplemental combustion air inlet means opening into said combustion chamber closely adjacent said combuster means.
Dependencies are inferred from the claim text.