Riffled seal for a turbomachine, turbomachine and method of manufacturing a riffled seal for a turbomachine
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United States of America Patent
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Mar 20, 2018
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N/A
app pub date -
Jan 23, 2014
filing date -
Feb 20, 2013
priority date (Note) -
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Abstract
A seal of a turbomachine reduces a leakage flow between a first and second component of the turbomachine. The first component has a first surface and the second component has a second surface, wherein the first component is stiff with regard to a first force exerted perpendicularly thereto and the second component is stiff with regard to a second force exerted perpendicularly thereto. The first surface is opposite the second surface, together defining boundaries of a fluid passage for the leakage flow. The first surface has a first surface riffle. A turbomachine has a seal described above, wherein the turbomachine is a gas turbine engine. A method of manufacturing a first component of a turbomachine with a reduced leakage flow between the first component and a second component of the turbomachine includes fabrication of a first surface riffle, in particular by grinding and/or by electrical discharge machining.
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