Rotor and motor
US-2024388149-A1 · Nov 21, 2024 · US
System and method for smoothing a salient rotor in electrical machines
US9520751B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9520751-B2 |
| Application number | US-201313949406-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jul 24, 2013 |
| Priority date | Jul 24, 2013 |
| Publication date | Dec 13, 2016 |
| Grant date | Dec 13, 2016 |
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Abstract
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An electrical machine exhibiting reduced friction and windage losses is disclosed. The electrical machine includes a stator and a rotor assembly configured to rotate relative to the stator, wherein the rotor assembly comprises a rotor core including a plurality of salient rotor poles that are spaced apart from one another around an inner hub such that an interpolar gap is formed between each adjacent pair of salient rotor poles, with an opening being defined by the rotor core in each interpolar gap. Electrically non-conductive and non-magnetic inserts are positioned in the gaps formed between the salient rotor poles, with each of the inserts including a mating feature formed an axially inner edge thereof that is configured to mate with a respective opening being defined by the rotor core, so as to secure the insert to the rotor core against centrifugal force experienced during rotation of the rotor assembly.
First claim
Opening claim text (preview).
What is claimed is: 1. An electrical machine comprising: a stator; a rotor assembly disposed within the stator and configured to rotate relative to the stator, wherein the rotor assembly comprises: a rotor core comprising a plurality of salient rotor poles that are spaced apart from one another around an inner hub such that an interpolar gap is formed between each adjacent pair of salient rotor poles, with an opening being defined by the rotor core in each interpolar gap; and…
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Frequently asked questions
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- What does patent US9520751B2 cover?
- An electrical machine exhibiting reduced friction and windage losses is disclosed. The electrical machine includes a stator and a rotor assembly configured to rotate relative to the stator, wherein the rotor assembly comprises a rotor core including a plurality of salient rotor poles that are spaced apart from one another around an inner hub such that an interpolar gap is formed between each ad…
- Who is the assignee on this patent?
- Gen Electric
- What technology area does this patent fall under?
- Primary CPC classification H02K1/246. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Dec 13 2016 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).