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US 2022/0186979 A1Published application
Heating systems with unhoused centrifugal fan and wraparound heat exchanger
AssigneeRheem Manufacturing Company
InventorRobert L. Long
Life of this patent
Estimating the term…
Abstract
A heating system with wraparound heat exchanger is disclosed. The system includes a centrifugal fan that expels air radially into a plenum space. A heat exchanger tube is placed in the plenum space, thereby heating the air in the plenum space before it exits an assembly cabinet. The heat exchanger tube can have various configurations, including non-horizontal configurations so as to allow condensate to drain from the heat exchanger tubes.
Claims20
A heat exchanger assembly comprising:
- a heat exchanger tube comprising a first section, a second section, and a curved section disposed between the first section and the second section;
- and
- a centrifugal fan positioned between the first section and the second section and configured to pull in air from a fan inlet and disperse air across the first section, the second section, and the curved section.
A heating system comprising:
- a centrifugal fan comprising a fan inlet;
- a heat exchanger tube positioned at least partially around the centrifugal fan;
- and
- a cabinet that contains the centrifugal fan and at least a portion of the heat exchanger tube, the cabinet comprising an air inlet positioned proximate the fan inlet and an air outlet,
- wherein the centrifugal fan is configured to disperse air radially from a center of the centrifugal fan and across at least a portion of the heat exchanger tube.
2 more elements
Dependencies are inferred from the claim text.