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Impeller, and rotating machine provided with same
US2015226233A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2015226233-A1 |
| Application number | US-201314417722-A |
| Country | US |
| Kind code | A1 |
| Filing date | Oct 29, 2013 |
| Priority date | Oct 30, 2012 |
| Publication date | Aug 13, 2015 |
| Grant date | — |
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- Title
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Abstract
Official abstract text for this publication.
The invention includes a disc-shaped disc section ( 30 ) that is attached to a rotating shaft ( 6 ), and blade sections ( 40 ) that are provided on a front surface ( 31 ) that is one side in an axial direction of the disc section ( 30 ). Balance holes ( 33 ) for attaching weight-adjusting weight members W thereto are provided at positions where the blade sections ( 40 ) are provided in a radial direction, in a rear surface ( 51 ) that is the other side in the axial direction of the disc section ( 30 ).
First claim
Opening claim text (preview).
1 . An impeller comprising: a disc-shaped disc section that has a tube portion attached to a rotating shaft and extends radially outward from a rear side in an axis direction of the tube portion; and a blade section that is provided in a surface that is one side in an axial direction of the disc section, wherein the blade section is provided with an attachment hole for attaching a weight-adjusting weight, in a back surface that is the other side in the axial direction of the disc section. 2 . The impeller according to claim 1 , wherein the disc section includes a stress-relaxing device that is provided on at least one radial side of the attachment hole in the back surface and relaxes stress concentration caused by a centrifugal force in the attachment hole. 3 . The impeller according to claim 2 , wherein the stress-relaxing device includes an axial wall portion that diverts a radial stress in a meridian plane, on at least one radial side of the attachment hole. 4 . A rotating machine comprising: a rotor having the impeller according to claim 1 . 5 . A rotating machine comprising: a rotor having the impeller according to claim 2 . 6 . A rotating machine comprising: a rotor having the impeller according to claim 3 .
Assignees
Inventors
Classifications
driven by a common gearing arrangement · CPC title
for compressors · CPC title
Arrangements for balancing (for balancing rotating bodies in general F16F15/32; for compensating imbalance G01M1/36) · CPC title
for radial-flow machines or engines · CPC title
damping or preventing mechanical vibrations · CPC title
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Frequently asked questions
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- What does patent US2015226233A1 cover?
- The invention includes a disc-shaped disc section ( 30 ) that is attached to a rotating shaft ( 6 ), and blade sections ( 40 ) that are provided on a front surface ( 31 ) that is one side in an axial direction of the disc section ( 30 ). Balance holes ( 33 ) for attaching weight-adjusting weight members W thereto are provided at positions where the blade sections ( 40 ) are provided in a radial…
- Who is the assignee on this patent?
- Mitsubishi Heavy Ind Ltd, Mitsubishi Heavy Ind Compressor Corp
- What technology area does this patent fall under?
- Primary CPC classification F04D29/662. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Thu Aug 13 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). 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).