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• 15 United States
• 10 France
• 8 Japan
• 7 China
• 5 Korea
• 2 Other

Patent Owner(s)

Patent Owner	Address
PRAXAIR S T TECHNOLOGY INC	441 SACKETT POINT ROAD NORTH HAVEN CT 06473

International Classification(s)

• F01D:NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, e.g....

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Taylor, Thomas Alan	Indianapolis, US	19	440
# of filed Patents : 19 Total Citations : 440

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Patent Citation Ranking

• 15 Citation Count
• F01D Class

• 60.47 % this patent is cited more than
• 14 Age

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Maintenance Fees

Fee	Large entity fee	small entity fee	micro entity fee	due date

Fee	Large entity fee	small entity fee	micro entity fee
Surcharge after expiration - Late payment is unavoidable	$700.00	$350.00	$175.00
Surcharge after expiration - Late payment is unintentional	$1,640.00	$820.00	$410.00

Full Text

US Patent Application No: 2011/0164,963

COATING SYSTEM FOR CLEARANCE CONTROL IN ROTATING MACHINERY

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Abstract

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The invention relates to gas turbine engine seal systems having a rotating member with an abrasive tip surface disposed in rub relationship to a stationary seal member with an abradable surface. The abrasive tip surface is coated with a metallic alloy matrix having ceramic abrasive particles embedded in and projecting from the matrix. The abradable seal surface is coated with a ceramic coating. The rub relationship affords a tight operating clearance between the rotating member and the stationary seal member, thereby improving engine efficiency, reducing fuel consumption and minimizing overhaul downtime.

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Description

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