US 12,129,865 B2
Compressor wheel
Markus Eisenbarth, Mainz-Kastel (DE); and Martin Schön, Fürfeld (DE)
Assigned to BorgWarner Inc., Auburn Hills, MI (US)
Filed by BorgWarner Inc., Auburn Hills, MI (US)
Filed on Aug. 31, 2022, as Appl. No. 17/900,185.
Claims priority of application No. 102021133772.0 (DE), filed on Dec. 18, 2021.
Prior Publication US 2023/0193922 A1, Jun. 22, 2023
Int. Cl. F04D 29/28 (2006.01); F04D 17/10 (2006.01); F04D 29/30 (2006.01)
CPC F04D 29/284 (2013.01) [F04D 17/10 (2013.01); F04D 29/30 (2013.01); F05D 2220/40 (2013.01); F05D 2240/20 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A compressor wheel for a compressor of a turbocharger, the compressor wheel comprising a hub and a multiplicity of blades on the hub, wherein in intermediate spaces of the multiplicity of blades a channel is in each case formed between a suction side and a pressure side, the channel configured to guide fluid that flows in axially in relation to a rotation axis and further configured to guide fluid radially or radially-axially outward, wherein the hub in relation to the rotation axis in at least one channel is contoured with a rotationally symmetrical portion and a non-rotationally symmetrical portion, wherein the non-rotationally symmetrical portion has a region of modified thickness configured to be tangential to the rotationally symmetrical portion and is formed by radii that are variable in the flow direction, wherein the non-rotationally symmetrical portion of the hub begins at the external periphery of the hub and extends radially inward, and a transition region embodied as a radiused connection between the hub and the suction side of the blade adjoins the non-rotationally symmetrical portion.