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US 11,933,314 B2Granted
Compressor wheel
AssigneeBorgWarner Inc.
InventorsMartin Schön, Markus Eisenbarth, Manfred Krämer
Life of this patent
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AssigneeBorgWarner Inc.
InventorsMartin Schön, Markus Eisenbarth, Manfred Krämer
Estimating the term…
A compressor wheel for a compressor of a turbocharger has a hub and a multiplicity of blades on the hub. 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 guides fluid that flows in axially in relation to a rotation axis radially or radially-axially outward. The hub in relation to the rotation axis is contoured such that the hub has a rotationally symmetrical portion and a non-rotationally symmetrical portion. On the non-rotationally symmetrical portion, a transition between the hub and each of the blades is embodied with a radiused connection and facing the suction side has a region of modified thickness. A region formed by control rays is generated in at least one channel between the suction side and the pressure side on the hub. A method produces the compressor wheel.
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 guiding fluid that flows in axially in relation to a rotation axis and radially or radially-axially outward, wherein the hub in relation to the rotation axis is contoured such that the hub has a rotationally symmetrical portion and a non-rotationally symmetrical portion, wherein on the non-rotationally symmetrical portion a transition between the hub and each of the blades is embodied with a radiused connection and facing the suction side has a region of modified thickness, wherein in at least one channel between the suction side and the pressure side on the hub there is configured a region extending between a peripheral edge of the hub and the transition, and wherein the region extending between the peripheral edge of the hub and the transition is defined by a multiplicity of linear control rays arranged at discrete positions within the at least one channel between the suction side and the pressure side on the hub.
A method for producing a compressor wheel for a compressor of a turbocharger, which comprises 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 guiding fluid that flows in axially in relation to a rotation axis and radially or radially-axially outward, wherein the hub in relation to the rotation axis is contoured such that the hub has a rotationally symmetrical portion and a non-rotationally symmetrical portion, wherein on the non-rotationally symmetrical portion a transition between the hub and each of the blades is embodied with a radiused connection and facing the suction side has a region of modified thickness, wherein generated in at least one channel between the suction side and the pressure side on the hub is a region extending between a peripheral edge of the hub and the transition, and wherein the region extending between the peripheral edge of the hub and the transition is formed by linear control rays arranged at discrete positions within the at least one channel between the suction side and the pressure side on the hub.
Dependencies are inferred from the claim text.