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US 11,536,286 B2Granted
Systems and methods for improving airflow in a centrifugal blower
AssigneeMicrosoft Technology Licensing, LLC
InventorsKetan R. Shah, Sudeendra Durgappa, Keith Walter Kaatz, Kashyap Adury
Life of this patent
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Abstract
An impeller for a centrifugal blower includes at least one blade oriented in a radial direction of the impeller. The blade has an airfoil section with a radially inward end and a radially outward end that are thinner than at least one point between the radially inward end and the radially outward end.
Claims20
An impeller for a centrifugal blower, the impeller comprising:
- at least one blade oriented in a radial direction of the impeller, the blade including an airfoil section with both a radially inward end and a radially outward end that are thinner than at least one point between the radially inward end and the radially outward end, wherein the impeller comprises a plurality of blades with a varying pitch between blades of the plurality of blades.
An impeller for a centrifugal blower, the impeller comprising:
- a hub configured to connect to an axle at a rotational axis;
- and
- at least one blade connected to the hub and oriented in a radial direction of the impeller relative to the rotational axis, the blade including:
- an airfoil section with a radially inward end and a radially outward end that are both thinner than at least one point between the radially inward end and the radially outward end, the airfoil section having a negative rake relative to a direction of rotation of the impeller, and
- an exit section with a more positive rake than the airfoil section.
2 more elements
Dependencies are inferred from the claim text.