Turbine with a shroud ring around rotor blades and method of limiting leakage of working fluid in a turbine
US-2024280031-A1 · Aug 22, 2024 · US
External segmented shell capable of correcting for rotor misalignment in relation to the stator
US8939712B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8939712-B2 |
| Application number | US-201213407948-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 29, 2012 |
| Priority date | Mar 3, 2011 |
| Publication date | Jan 27, 2015 |
| Grant date | Jan 27, 2015 |
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Abstract
Official abstract text for this publication.
The invention relates to a housing for covering the ends of a row of rotor blades of an axial turbomachine compressor, the housing being provided with a sealing device between the blade tips and the housing. It comprises a shell segmented along its circumference, each segment being fixed to the housing by a series of elastomeric elements in a recess in the shape of a channel cut into the inner surface of the housing. In this way, in the event of misalignment of the rotor relative to the stator, the rotor blades coming into contact with sections of the shell will be able to move to compensate for this misalignment while reducing the frictional forces generated by contact between the blades and the shell. In the event of alignment being re-established the segments of the shell will be able to resume their initial position because of the elastic behavior of the elements.
First claim
Opening claim text (preview).
What is claimed is: 1. A housing for covering the ends of a row of blades of a rotor of an axial turbomachine compressor, said housing comprising: a structural wall; a segmented shell structured and operable to enclose the row of blades and supported by the wall; and a plurality of deformable elements positioned between the wall and the segments of the shell so as to allow the segments to move in the event of contact with the tips of the blades of the rotor, in the event of mi…
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Classifications
- F01D11/122Primary
Mechanical Engineering · mapped topic
Mechanical Engineering · mapped topic
Mechanical Engineering · mapped topic
Mechanical Engineering · mapped topic
Mechanical Engineering · mapped topic
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Frequently asked questions
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- What does patent US8939712B2 cover?
- The invention relates to a housing for covering the ends of a row of rotor blades of an axial turbomachine compressor, the housing being provided with a sealing device between the blade tips and the housing. It comprises a shell segmented along its circumference, each segment being fixed to the housing by a series of elastomeric elements in a recess in the shape of a channel cut into the inner …
- Who is the assignee on this patent?
- Cortequisse Jean-Francois, Techspace Aero Sa
- What technology area does this patent fall under?
- Primary CPC classification F01D11/122. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Jan 27 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).