Turbine blade tip clearance control

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9347334
APP PUB NO 20130089408A1
SERIAL NO

13635421

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Abstract

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An aircraft engine for use in a low-bypass turbofan application has a high pressure turbine having a blade and an engine casing disposed about the blade. A shield is disposed around the casing adjacent to the blade to create an area between the shield and the casing. A gate selectively controls entry of cooling air into the area and may be closed if the engine is maneuvering and may be open if cruising.

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Patent Owner(s)

  • UNITED TECHNOLOGIES CORPORATION

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Joe, Christopher R Wethersfield, US 12 340
Ward, Daniel A Winsted, US 2 18

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