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US 10,518,367 B2Granted
Heat exchanger having an interference rib
AssigneeLennox Industries Inc.
InventorDonald N. Zimmer
Life of this patent
Estimating the term…
Abstract
One aspect of this disclosure provides a heat exchanger that comprises a first panel half coupled to a corresponding second panel half that form a passageway having at least a first chamber adjacent an inlet end of the passageway and a second chamber and overlapping interference patterns formed in each of the first and second panel halves that extend along at least a portion of the length of the passageway and located between at least the first and second chambers.
Claims9
A method of operating a furnace, comprising:
- receiving a supply of gas from a gas line;
- receiving a supply of air from an environment;
- mixing the supply of gas and the supply of air to create a gas-air mix;
- igniting the gas-air mix in a combustion chamber;
- directing the ignited gas-air mix into a heat exchanger, the heat exchanger comprising:
- a first panel half defined by a first outer perimeter;
- a second panel half defined by a second outer perimeter, said first and second panel halves being joined together at least at said first and second outer perimeters and having a passageway comprising at least a first chamber and a second chamber;
- and
- overlapping interference patterns formed in a surface region of each of said first and second panel halves such that said interference patterns of said first and second panel halves interact with each other and resist the passage of flue gasses therethrough when heating of the heat exchanger panel causes a slight separation between said first panel half and said second panel half, and wherein one end of an overlapping interference pattern is proximate a bend in the irregular path and the other end is proximate a coupled perimeter of the first and second panel halves, wherein at least a portion of said overlapping interference patterns are opposing crimp patterns having a “W” configuration formed in said first and second panel halves;
- and
- directing the ignited gas-air mix to an exhaust conduit.
8 more elements
A heat exchanger for a furnace, comprising:
- a first panel half defined by a first outer perimeter;
- a second panel half defined by a second outer perimeter, said first and second panel halves being joined together at least at said first and second outer perimeters and having a passageway comprising at least a first chamber and a second chamber;
- and
- overlapping interference patterns formed in a surface region of each of said first and second panel halves such that said interference patterns of said first and second panel halves interact with each other and resist the passage of flue gasses therethrough when heating of the heat exchanger panel causes a slight separation between said first panel half and said second panel half, and wherein one end of an overlapping interference pattern is proximate a bend in the irregular path and the other end is proximate a coupled perimeter of the first and second panel halves, wherein at least a portion of said overlapping interference patterns are opposing crimp patterns having a “W” configuration formed in said first and second panel halves.
1 more element
Dependencies are inferred from the claim text.