US 11,852,156 B1
HVAC blower wheel insert
Matthew Ackley, Harrison Township, MI (US); and Joseph J. Spryshak, Hartland, MI (US)
Assigned to Air International (US) Inc., Auburn Hills, MI (US)
Filed by Air International (US) Inc., Auburn Hills, MI (US)
Filed on Nov. 11, 2022, as Appl. No. 17/985,447.
Int. Cl. F04D 29/28 (2006.01); F04D 29/053 (2006.01); F04D 29/38 (2006.01); B60H 1/00 (2006.01)
CPC F04D 29/281 (2013.01) [B60H 1/00471 (2013.01); F04D 29/053 (2013.01); F04D 29/388 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A blower assembly for an HVAC system comprising:
a blower wheel including a plurality of blades;
a laminated insert concentric with the blower wheel and radially inward of the plurality of blades and comprising a plurality of metal sheet layers; and
a shaft coupled to the blower wheel through the laminated insert, wherein each of the plurality of metal sheet layers includes at least one surface that engages the shaft.