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US 12,292,203 B2Granted
Compact, high-efficiency air handling unit for residential HVAC systems
AssigneeSyracuse University
InventorsMehmet Nasir Sarimurat, Thong Quoc Dang
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Abstract
An air handler unit for use with residential heating, ventilation, and air conditioning (HVAC) systems. The air handler unit has high resistance mediums (HRMs) coupled closely to a wide-angle vane-diffuser mixed-flow fan system. The HRMs are placed immediately upstream and downstream of the wide-angle vane-diffuser mixed-flow fan to form a closely coupled, compact air handler that provides significant efficiency and noise benefits.
Claims8
A compact assembly for an air handling unit, comprising:
- a mixed-flow fan having a rotor with a plurality of blades to move air from an upstream side of the mixed-flow fan to a downstream side, wherein the mixed flow fan has a diffusion factor of at least 0.6;
- a wide-angle diffuser having a hub-to-tip ratio below 0.5, a diffusion factor of at least 0.6, and a plurality of vanes coupled to the downstream side of the mixed-flow fan;
- a first high resistance media coupled directly to the upstream side of the mixed-flow fan and positioned no farther from the plurality of blades than fifteen percent of a mean chord of the plurality of blades;
- and
- a second high resistance media coupled directly to the wide-angle diffuser and positioned no farther from the plurality of vanes than a five percent of a mean chord of the plurality of vanes.
2 more elements
Dependencies are inferred from the claim text.