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US 8,618,706 B2Granted
Fluid pumping capillary seal for a fluid dynamic bearing
AssigneeSeagate Technology LLC
InventorsAlan L. Grantz, Lynn B. Le, Klaus Kloeppel
Life of this patent
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Abstract
A motor includes a rotatable component rotatable relative to a stationary component, a fluid operable to flow between the rotatable and stationary component, and a capillary sealing component. The capillary sealing component provides a capillary seal and includes at least one tapered slot configured to pump the fluid between the rotatable and stationary components.
Claims20
A motor comprising:
- a rotatable component rotatable relative to a stationary component;
- a fluid operable to flow between the rotatable and stationary component;
- and
- a capillary sealing component including at least one tapered slot configured to pump the fluid between the rotatable and stationary components, wherein the at least one tapered slot comprises a first end and a second end, wherein a width of the at least one tapered slot at the first end is different than a width at the second end.
1 more element
A motor comprising:
- a rotatable component rotatable relative to a stationary component;
- a fluid operable to flow between the rotatable and stationary component;
- and
- a capillary sealing component including at least one tapered slot configured to pump the fluid between the rotatable and stationary components, wherein the capillary sealing component includes a plurality of ribs.
1 more element
A motor comprising:
- a rotatable component rotatable relative to a stationary component;
- a fluid operable to flow between the rotatable and stationary component;
- and
- a capillary sealing component including at least one tapered slot that spirals radially outward and is configured to pump the fluid between the rotatable and stationary components.
1 more element
Dependencies are inferred from the claim text.