Cooling hole for a gas turbine engine component
US-2015377033-A1 · Dec 31, 2015 · US
Turbine blade
US9759069B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9759069-B2 |
| Application number | US-201414291104-A |
| Country | US |
| Kind code | B2 |
| Filing date | May 30, 2014 |
| Priority date | Dec 15, 2011 |
| Publication date | Sep 12, 2017 |
| Grant date | Sep 12, 2017 |
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- Title
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- Abstract
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- Assignees and inventors
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- Key dates
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- First independent claim
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- CPC / IPC classifications
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- Citations and related patents
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Abstract
Official abstract text for this publication.
The present invention is a turbine blade ( 1 ) having a hollow blade body ( 2 ). This turbine blade ( 1 ) is provided with: cooling air holes ( 5 ) that penetrate the blade body ( 2 ) from an internal wall surface ( 2 e ) to an external wall surface ( 2 f ) thereof, and are provided with a straight tube portion ( 5 a ) that is located on the internal wall surface ( 2 e ) side of the blade body ( 2 ), and an expanded diameter portion ( 5 b ) that is located on the external wall surface ( 2 f ) side of the blade body ( 2 ); and with a guide groove ( 6 ) that is located on an internal wall of the expanded diameter portion ( 5 b ) and that guides cooling air (Y) in the expanded diameter portion ( 5 ).
First claim
Opening claim text (preview).
What is claimed is: 1. A turbine blade having a hollow blade body comprising: cooling air holes that penetrate the blade body from an internal wall surface to an external wall surface thereof, and are provided with a straight tube portion that is located on the internal wall surface side of the blade body, and an expanded diameter portion that is located on the external wall surface side of the blade body; a guide groove that is provided on a part of an internal wall of the expanded diameter portion and that guides cooling air in the expanded diameter portion, the part of the internal wall of the expanded diameter portion being located on a downstream side in a flow direction of main flow gas that flows along the external wall surface; and a recessed portion that is provided in the guide groove. 2. The turbine blade according to claim 1 , wherein the guide groove is provided extending along an internal wall surface of the expanded diameter portion. 3. The turbine blade according to claim 1 , wherein the guide groove is provided extending in the flow direction of the cooling air flowing through the straight tube portion. 4. The turbine blade according to claim 1 , wherein the guide groove has a collision surface that is provided in the expanded diameter portion and intersects the flow direction of the cooling air.
Assignees
Inventors
Classifications
by film cooling · CPC title
grooved · CPC title
- F01D5/186Primary
Film cooling (F01D5/187 takes precedence) · CPC title
Convection cooled combustion chamber walls with means for guiding the cooling air flow · CPC title
Fluid supply or removal conduits traversing the working fluid flow, e.g. for lubrication-, cooling-, or sealing fluids (see also F01D25/16, F01D25/24 and F01D25/26) · CPC title
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- What does patent US9759069B2 cover?
- The present invention is a turbine blade ( 1 ) having a hollow blade body ( 2 ). This turbine blade ( 1 ) is provided with: cooling air holes ( 5 ) that penetrate the blade body ( 2 ) from an internal wall surface ( 2 e ) to an external wall surface ( 2 f ) thereof, and are provided with a straight tube portion ( 5 a ) that is located on the internal wall surface ( 2 e ) side of the bla…
- Who is the assignee on this patent?
- Ihi Corp
- What technology area does this patent fall under?
- Primary CPC classification F01D5/186. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Sep 12 2017 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).