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US 2011/0255239 A1Published application
Single Rotor Ducted Fan
AssigneeHewlett-Packard Development Company, L.P.
InventorJohn P. Franz
Life of this patent
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Abstract
In accordance with at least some embodiments, a single rotor ducted fan is disclosed. The single rotor ducted fan comprises a duct having an intake diameter and an impeller having a hub with blades that extend radially from the hub. The blades have a maximum tip diameter. The bellmouth diameter is less than the maximum tip diameter.
Claims17
A computer system, comprising:
- an enclosure configured to hold at least one processor;
- and
- a plurality of single rotor ducted fans units selectively attached to the enclosure, wherein each single rotor ducted fan unit comprises a duct having an bellmouth diameter, and an impeller positioned inside the duct, the impeller having a hub and blades that extend radially from the hub, the blades having a maximum tip diameter;
- wherein the bellmouth diameter is less than the maximum tip diameter.
1 more element
The computer system of claim 3, wherein the radius turns through an angle of 90 degrees at least in one section of the bellmouth diameter.
A single rotor ducted fan, comprising:
- a duct having a bellmouth diameter and an exhaust diameter, wherein the bellmouth diameter is formed by a radius that defines a non-conical shape at an inlet of the duct, and where the bellmouth diameter is less than the exhaust diameter;
- and
- a impeller inset within the duct between the bellmouth diameter and the exhaust diameter, the impeller having a hub and blades that extend radially from the hub, the blades having a maximum tip diameter, wherein the bellmouth diameter is less than the maximum tip diameter.
A computer system, comprising:
- a server rack configured to hold a plurality of blades;
- and
- a plurality of single rotor ducted fans units selectively attached to the server rack, wherein each single rotor ducted fan unit comprises a duct having an bellmouth diameter, and an impeller positioned inside the duct, the impeller having a hub and blades that extend radially from the hub, the blades having a maximum tip diameter;
- wherein the bellmouth diameter is less than the maximum tip diameter.
1 more element
Dependencies are inferred from the claim text.