Axial duct cooling fan
AssigneeHewlett-Packard Development Company, L.P.
InventorsWade D. Vinson, John P. Franz, Ronald D. Noblett, Joseph R. Allen
Life of this patent
Estimating the term…
Abstract
A cooling fan comprising a housing that connects to a chassis that is operable to support an electronic component. An axial duct runs through the housing. A blade assembly is rotatably disposed within the duct and comprises a plurality of fan blades that extend radially from a hub to a fan diameter. The axial duct has a chord length at least equal to the fan diameter. A motor assembly is disposed within the axial duct and coupled to said blade assembly. The cooling fan provides a cooling capacity of at least 1.5 air horsepower per cubic inch volume of the cooling fan.
Claims21
A cooling fan comprising:
- a housing that connects to a chassis that is operable to support an electronic component;
- an axial duct through said housing;
- a blade assembly rotatably disposed within said duct, wherein said blade assembly comprises a plurality of fan blades that extend radially from a hub to a fan diameter, wherein said axial duct has a chord length at least equal to the fan diameter;
- and
- a motor assembly disposed within said axial duct and coupled to said blade assembly, wherein said motor assembly comprises:
- a windings section coupled to said housing;
- an axle coupled to said blade assembly and disposed partially within a bore through said windings section;
- and
- a bearing assembly that rotatably couples said axle to said windings section, wherein said bearing assembly is disposed outboard of said windings section;
- wherein the cooling fan provides a cooling capacity of at least 1.5 air horsepower per cubic inch volume of the cooling fan.
A computer system comprising:
- a chassis;
- an electronic component supported by said chassis;
- and
- a electric ducted fan coupled to said chassis, said electric ducted fan comprising:
- a blade assembly;
- a motor assembly coupled to the blade assembly, wherein the motor assembly comprises a windings section;
- an axle coupled to the blade assembly and disposed partially within a bore through the windings section;
- and
- a bearing assembly that rotatably couples said axle to the windings section, wherein the bearing assembly is disposed outboard of the windings section;
- wherein said electric ducted fan provides a cooling capacity of at least 1.5 air horsepower per cubic inch volume of the cooling fan.
Dependencies are inferred from the claim text.