Cooling hole for a gas turbine engine component
US-2015377033-A1 · Dec 31, 2015 · US
Active film cooling for turbine blades
US9200522B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9200522-B2 |
| Application number | US-74711208-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 15, 2008 |
| Priority date | Dec 14, 2007 |
| Publication date | Dec 1, 2015 |
| Grant date | Dec 1, 2015 |
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Abstract
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A cooling system includes a surface comprising a plurality of orifices and a flow control plasma actuator positioned proximate an orifice to induce cooling air attachment to the surface. In an exemplary embodiment, the plasma actuator includes a power source, a first electrode in contact with a first dielectric layer and connected to the power source, a second electrode in contact with a second dielectric layer and connected to the power source, and a ground electrode. The power source drives the first electrode with a first ac voltage pattern and drives the second electrode with a second ac voltage pattern. The first voltage pattern and the second voltage pattern have a phase difference. In further embodiments, a dc voltage can be used to drive one or more of the electrodes, where the dc voltage can be pulsed in specific embodiments. In another embodiment, a cooling system includes a suction mechanism positioned proximate an orifice to induce cooling air attachment to the surface, the section mechanism being positioned downstream of the orifice.
First claim
Opening claim text (preview).
The invention claimed is: 1. A device, comprising: a surface; an orifice positioned in the surface, wherein a cooling gas is output from the orifice such that the cooling gas output from the orifice has a cooling gas temperature and has a component of flow in a downstream direction, and wherein the downstream direction is parallel to the surface where the cooling gas is output from the orifice; a suction hole positioned in the surface proximate the orifice, wherein the…
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Cross-Sectional Technologies · mapped topic
Mechanical Engineering · mapped topic
- F01D5/186Primary
Mechanical Engineering · 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 US9200522B2 cover?
- A cooling system includes a surface comprising a plurality of orifices and a flow control plasma actuator positioned proximate an orifice to induce cooling air attachment to the surface. In an exemplary embodiment, the plasma actuator includes a power source, a first electrode in contact with a first dielectric layer and connected to the power source, a second electrode in contact with a second…
- Who is the assignee on this patent?
- Roy Subrata, Univ Florida
- 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 Dec 01 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).