Turbocharger
US-9828873-B2 · Nov 28, 2017 · US
Rotor assembly
US9624940B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9624940-B2 |
| Application number | US-70988010-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 22, 2010 |
| Priority date | Feb 24, 2009 |
| Publication date | Apr 18, 2017 |
| Grant date | Apr 18, 2017 |
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- Title
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- Abstract
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- Assignees and inventors
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- First independent claim
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- CPC / IPC classifications
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- Citations and related patents
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Abstract
Official abstract text for this publication.
A rotor assembly that includes a shaft to which are mounted an impeller and a bearing assembly. The bearing assembly is located at least partly within the profile of the impeller so as to reduce loading of the bearing assembly as well as reduce the cantilever length of the rotor assembly.
First claim
Opening claim text (preview).
The invention claimed is: 1. A rotor assembly for a centrifugal compressor comprising: a shaft to which are mounted a centrifugal impeller and a bearing assembly comprising: a pair of spaced bearings surrounded by a sleeve, wherein the centrifugal impeller comprises a hub supporting a plurality of blades, a recess is formed in a top end of the hub, a bore extends through the recess formed in the top end of the hub with the shaft being inserted through the bearing assembly and into the bore, the diameter of the recess is greater than that of the bore, the bearing assembly is located at least partly within the recess, wherein the hub is spaced radially from the bearing assembly, and wherein the shaft and the bearing assembly substantially fill the recess formed in the top end of the hub and present an annular gap between an outer diameter of the sleeve and an inner diameter of the recess. 2. The rotor assembly of claim 1 , wherein the hub includes a concave inner surface that defines the recess in the top of the hub. 3. The rotor assembly of claim 1 , wherein the bearing assembly is proximate the centre-of-mass of the impeller. 4. The rotor assembly of claim 1 , wherein the bearing assembly comprises one of the pair of spaced bearings located wholly within the recess. 5. The rotor assembly of claim 1 , wherein the impeller comprises a shroud and the plurality of blades extend between the hub and the shroud.
Assignees
Inventors
Classifications
mounting fan or blower rotors on shafts · CPC title
- F04D29/0563Primary
Bearings cartridges · CPC title
Systems consisting of a plurality of bearings with rolling friction (spindle bearings F16C35/08) · CPC title
with resilient means acting axially on a race ring to preload the bearing · CPC title
Engines or pumps · CPC title
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Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US9624940B2 cover?
- A rotor assembly that includes a shaft to which are mounted an impeller and a bearing assembly. The bearing assembly is located at least partly within the profile of the impeller so as to reduce loading of the bearing assembly as well as reduce the cantilever length of the rotor assembly.
- Who is the assignee on this patent?
- Jones David Michael, Mockridge Richard Iain, Burlington Geoffrey Michael, and 1 more
- What technology area does this patent fall under?
- Primary CPC classification F04D29/0563. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Apr 18 2017 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).