Method for manufacturing a rotating part of a hydraulic machine, rotating part manufactured according to this method, hydraulic machine and energy conversion installation
US-10138863-B2 · Nov 27, 2018 · US
Fluid machine
US8944757B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8944757-B2 |
| Application number | US-201113229359-A |
| Country | US |
| Kind code | B2 |
| Filing date | Sep 9, 2011 |
| Priority date | Sep 13, 2010 |
| Publication date | Feb 3, 2015 |
| Grant date | Feb 3, 2015 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
A fluid machine of an embodiment includes a sealing portion formed of an annular minute gap between a runner band of a runner configuring a rotating portion and a sealing liner which is a stationary portion and arranged in opposition to the runner band. A groove having a quadrangular cross-sectional shape is formed circumferentially on a surface of the sealing liner configuring the sealing portion. In a cross section perpendicular to a groove forming direction of the groove, an angle θ, formed between a side WU of the groove on the most upstream side with respect to the flowing direction of the leakage flow and a side W 0 of the groove which is on an extended line of the surface of the sealing liner, is determined to be 15° or more and 40° or less.
First claim
Opening claim text (preview).
What is claimed is: 1. A fluid machine, comprising: a rotating portion having a plurality of blades and an annular member disposed circumferentially at one end of the blades, the annular member having an annular wall portion; a stationary portion arranged in opposition to the annular member, the stationary portion having a stationary wall portion in opposition to the annular wall portion; a sealing portion formed of an annular minute gap between the rotating portion and the st…
Assignees
Inventors
Classifications
Mechanical Engineering · mapped topic
- F03B3/02Primary
Mechanical Engineering · mapped topic
Cross-Sectional Technologies · mapped topic
Mechanical Engineering · mapped topic
Cross-Sectional Technologies · mapped topic
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Frequently asked questions
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- What does patent US8944757B2 cover?
- A fluid machine of an embodiment includes a sealing portion formed of an annular minute gap between a runner band of a runner configuring a rotating portion and a sealing liner which is a stationary portion and arranged in opposition to the runner band. A groove having a quadrangular cross-sectional shape is formed circumferentially on a surface of the sealing liner configuring the sealing port…
- Who is the assignee on this patent?
- Kawajiri Hideyuki, Nakagawa Naritoshi, Toshiba Kk
- What technology area does this patent fall under?
- Primary CPC classification F03B3/02. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Feb 03 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).