Axial engagement-controlled variable damper systems and methods
US-9732818-B2 · Aug 15, 2017 · US
Eddy current deceleration device
US11764661B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11764661-B2 |
| Application number | US-202017596215-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jun 2, 2020 |
| Priority date | Jun 6, 2019 |
| Publication date | Sep 19, 2023 |
| Grant date | Sep 19, 2023 |
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- Title
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Abstract
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The eddy current deceleration device according to the present disclosure includes: a stator including a cylindrical body and a plurality of magnets disposed on an outer circumferential surface of the cylindrical body; and a rotor including a cylindrical part that houses the cylindrical body, wherein the cylindrical part of the rotor includes, on an inner circumferential surface of the cylindrical part, in order closest to the inner circumferential surface: a first layer consisting of one of an Ni—P alloy that is an Ni alloy consisting of P with the balance being Ni and impurities and an Ni—B alloy that is an Ni alloy consisting of B with the balance being Ni and impurities; a second layer consisting of nickel; a third layer consisting of one of copper and copper alloy; a fourth layer consisting of nickel alloy; and a fifth layer consisting of nickel.
First claim
Opening claim text (preview).
The invention claimed is: 1. An eddy current deceleration device comprising: a stator including a cylindrical body and a plurality of magnets disposed on an outer circumferential surface of the cylindrical body; and a rotor including a cylindrical part that houses the cylindrical body, wherein the cylindrical part of the rotor includes, on an inner circumferential surface of the cylindrical part, in order closest to the inner circumferential surface: a first layer consisting of one of an Ni—P alloy that is an Ni alloy consisting of P with the balance being Ni and impurities and an Ni—B alloy that is an Ni alloy consisting of B with the balance being Ni and impurities; a second layer consisting of nickel; a third layer consisting of one of copper and copper alloy; a fourth layer consisting of nickel alloy; and a fifth layer consisting of nickel. 2. The eddy current deceleration device according to claim 1 , wherein the first layer consisting of one of the Ni—P alloy that contains 2.0 to 20.0% by mass of P with the balance being Ni and impurities and the Ni—B alloy that contains 1.0 to 20.0% by mass of B with the balance being Ni and impurities. 3. The eddy current deceleration device according to claim 1 , wherein a thickness of the second layer is 0.1 to 5.0 μm. 4. The eddy current deceleration device according to claim 2 , wherein a thickness of the second layer is 0.1 to 5.0 μm.
Assignees
Inventors
Classifications
- H02K49/043Primary
with a radial airgap · CPC title
- C22C19/03Primary
based on nickel · CPC title
- H02K49/02Primary
of the asynchronous induction type · CPC title
- H02K49/04Primary
of the eddy-current hysteresis type · CPC title
with a radial air gap · CPC title
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- What does patent US11764661B2 cover?
- The eddy current deceleration device according to the present disclosure includes: a stator including a cylindrical body and a plurality of magnets disposed on an outer circumferential surface of the cylindrical body; and a rotor including a cylindrical part that houses the cylindrical body, wherein the cylindrical part of the rotor includes, on an inner circumferential surface of the cylindric…
- Who is the assignee on this patent?
- Nippon Steel Corp
- What technology area does this patent fall under?
- Primary CPC classification H02K49/043. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Sep 19 2023 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).