US 12,392,354 B2
Blower device
Cody Barnebee, Auburn Hills, MI (US); Anshuman Shevade, Chennai (IN); Steven Marshall, Auburn Hills, MI (US); and Timothy Mayer, Auburn Hills, MI (US)
Assigned to Valeo Systemes Thermiques, La Verriere (FR)
Filed by VALEO SYSTEMES THERMIQUES, La Verriere (FR)
Filed on Dec. 14, 2023, as Appl. No. 18/540,001.
Prior Publication US 2025/0198420 A1, Jun. 19, 2025
Int. Cl. F04D 29/44 (2006.01); F04D 29/28 (2006.01); F04D 29/30 (2006.01)
CPC F04D 29/282 (2013.01) [F04D 29/30 (2013.01); F04D 29/441 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A blower device for a heating, ventilation and air conditioning system, comprising:
a blower housing defining an internal volume with an inlet and an outlet;
a blower wheel with blower blades, arranged within the internal volume of the blower housing;
a motor configured to rotate the blower wheel in a first direction around a central axis;
a preswirler arranged within the inlet upstream of the blower wheel and including a plurality of vanes extending towards the blower wheel;
wherein each vane of the plurality of vanes includes a first section and a second section, both extending along the central axis toward the blower wheel, with the second section being closer to the blower wheel than the first section is, wherein each vane of the plurality of vanes slope in a second direction as they extend along the central axis towards the blower wheel, the second direction being opposite to the first direction.