Hybrid passive and active tip clearance system
US-2015369076-A1 · Dec 24, 2015 · US
Clearance control for a turbine
US8939709B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8939709-B2 |
| Application number | US-201113184628-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jul 18, 2011 |
| Priority date | Jul 18, 2011 |
| Publication date | Jan 27, 2015 |
| Grant date | Jan 27, 2015 |
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Abstract
Official abstract text for this publication.
A system for operating a turbine includes a rotating component and a non-rotating component separated from the rotating component by a clearance. A first actuator is connected to the non-rotating component, and the first actuator comprises a shape-memory alloy. A method for operating a turbine includes sensing a parameter reflective of a clearance between a non-rotating component and a rotating component and generating a parameter signal reflective of the clearance. The method further includes generating a control signal to at least one actuator based on the parameter signal and moving at least a portion of the non-rotating component relative to the rotating component to change the clearance.
First claim
Opening claim text (preview).
What is claimed is: 1. A turbine, comprising: an outer shroud segment fixed to a casing, the outer shroud segment having a forward end, an aft end, an outer portion fixed to the outer casing and an inner portion; an inner shroud segment disposed proximate to the inner portion, the inner shroud segment having a first end, a second end and an inner surface, the first end pivotally connected to the outer shroud proximate to the forward end; a rotatable blade having a tip portion,…
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Mechanical Engineering · mapped topic
- F01D11/22Primary
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 US8939709B2 cover?
- A system for operating a turbine includes a rotating component and a non-rotating component separated from the rotating component by a clearance. A first actuator is connected to the non-rotating component, and the first actuator comprises a shape-memory alloy. A method for operating a turbine includes sensing a parameter reflective of a clearance between a non-rotating component and a rotating…
- Who is the assignee on this patent?
- Nanukuttan Biju, Adoor Rakesh, Sundaram Hariharan, and 3 more
- What technology area does this patent fall under?
- Primary CPC classification F01D11/22. 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).