US 12,270,412 B2
Blower having a protrusion adjacent the static tap hole
Leslie A. Lyons, Cassville, MO (US); and David A. Fisher, Cassville, MO (US)
Assigned to Regal Beloit America, Inc., Beloit, WI (US)
Filed by Regal Beloit America, Inc., Beloit, WI (US)
Filed on Oct. 6, 2021, as Appl. No. 17/495,545.
Prior Publication US 2023/0107170 A1, Apr. 6, 2023
Int. Cl. F04D 29/42 (2006.01); F04D 17/10 (2006.01); F04D 27/00 (2006.01)
CPC F04D 29/4226 (2013.01) [F04D 17/10 (2013.01); F04D 27/001 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A blower comprising: a blower housing, a blower wheel, and a motor, the blower wheel being within the blower housing and having a plurality of blades, the motor being operatively connected to the blower wheel to rotate the blower wheel about an axis of rotation, the blower housing comprising a wall, the wall being perpendicular to the axis of rotation of the blower wheel, the wall having a static tap hole having a leading edge and a trailing edge, the static tap hole being positioned near an axial side of the blower wheel such that as the blower wheel rotates, a point on the blower wheel passes the leading edge of the static tap hole before passing the trailing edge of the static tap hole, the wall comprising a protrusion protruding axially from the wall and toward the blower wheel, the protrusion being located adjacent the trailing edge of the static tap hole, and wherein the protrusion extends no more than partially around the static tap hole.