US 11,939,983 B1
Centrifugal blower
Michael A. Carlson, Stanley, KS (US); Ryan L Jackson, Kansas City, MO (US); and Justin R. Gomez, Merriam, KS (US)
Assigned to Accessible Technologies, Inc., Lenexa, KS (US)
Filed by Accessible Technologies, Inc., Lenexa, KS (US)
Filed on Sep. 13, 2022, as Appl. No. 17/943,421.
Int. Cl. F04D 25/02 (2006.01); F02B 33/40 (2006.01); F02B 39/04 (2006.01); F04D 25/06 (2006.01); F04D 29/16 (2006.01); F04D 29/28 (2006.01); F04D 29/58 (2006.01); F04D 17/16 (2006.01); F04D 29/063 (2006.01); F04D 29/70 (2006.01)
CPC F04D 25/02 (2013.01) [F02B 33/40 (2013.01); F02B 39/04 (2013.01); F04D 25/06 (2013.01); F04D 29/162 (2013.01); F04D 29/284 (2013.01); F04D 29/5806 (2013.01); F04D 17/16 (2013.01); F04D 29/063 (2013.01); F04D 29/5853 (2013.01); F04D 29/703 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A centrifugal blower, comprising:
a pulley system, comprising:
a driving pulley coupled to a motor;
a driven pulley; and
a pulley belt coupled to the driving pulley and the driven pulley;
a gear set coupled to the driven pulley;
a mounting frame,
wherein the pulley system is mounted to a first side of the mounting frame and the gear set is mounted to a second side of the mounting frame,
wherein the mounting frame comprise a plurality of cooling holes for directing cooling air from the first side to the second side;
a centrifugal compressor, comprising:
an inlet;
an outlet; and
an impeller driven by the gear set and configured to pull air into the inlet, compress the air, and direct the air to the outlet; and
an inner plate coupled to a gearbox housing the gear set on a side of the gearbox that is opposite the mounting frame, the inner plate comprising a recessed portion; and
thermal insulation disposed in the recessed portion for reducing an amount of heat transfer to the gearbox from the centrifugal compressor.