Hydrodynamic bearing with compensated hydrostatic phase
US-2017074319-A1 · Mar 16, 2017 · US
Hub and spindle assembly
US9068596B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9068596-B2 |
| Application number | US-201414161467-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jan 22, 2014 |
| Priority date | Jun 24, 2005 |
| Publication date | Jun 30, 2015 |
| Grant date | Jun 30, 2015 |
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- Title
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Abstract
Official abstract text for this publication.
A rotating hub and fixed spindle assembly with first and second fluid dynamic journal bearings and first and second fluid dynamic thrust bearings for a disc drive memory system has a pump seal and a radial ring seal at a first axial terminus for lubricant containment, and a capillary seal and a labyrinth seal at a second axial terminus for lubricant containment and storage. Lubricant fluid pressure differences between first and second seals are minimized through one or more lubricant fluid communicating channels in the hub assembly, in order to minimize lubricant fluid loss through a seal. Lubricant fluid can also be purged of any air bubbles by lubricant fluid circulation through the channel.
First claim
Opening claim text (preview).
The invention claimed is: 1. An apparatus comprising: a spindle including first and second ends; a hub disposed coaxially to the spindle; a journal bearing between the first and second ends of the spindle; a pump seal configured and arranged to pump a lubricant fluid towards a first thrust bearing, wherein the pump seal is positioned within a gap between the spindle and the hub, and wherein the pump seal is separate from the first thrust bearing, wherein the first thrust bea…
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Classifications
Mechanical Engineering · mapped topic
Physics · mapped topic
- F16C32/0659Primary
Mechanical Engineering · mapped topic
- F16C33/103Primary
Mechanical Engineering · mapped topic
Mechanical Engineering · mapped topic
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- What does patent US9068596B2 cover?
- A rotating hub and fixed spindle assembly with first and second fluid dynamic journal bearings and first and second fluid dynamic thrust bearings for a disc drive memory system has a pump seal and a radial ring seal at a first axial terminus for lubricant containment, and a capillary seal and a labyrinth seal at a second axial terminus for lubricant containment and storage. Lubricant fluid pres…
- Who is the assignee on this patent?
- Seagate Technology Llc
- What technology area does this patent fall under?
- Primary CPC classification F16C32/0659. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Jun 30 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).