Knife Edge Seal for Gas Turbine Engine

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United States of America Patent

APP PUB NO 20130259659A1
SERIAL NO

13430929

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A seal for a gas turbine engine and a gas turbine engine employing such a seal are disclosed. More specifically, the engine includes a knife edge seal which is better able to withstand the extremely high temperatures and mechanical loads to which gas turbine engine components are increasingly subjected. By moving the knife edge seal to the aft hub and cantilevering its angle off of vertical, thermal and mechanical loads are balanced and thus thermal mechanical fatigue life is improved while low cycle fatigue is maintained.

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Patent Owner(s)

Patent OwnerAddress
UNITED TECHNOLOGIES CORPORATION10 FARM SPRINGS ROAD FARMINGTON CT 06032

International Classification(s)

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  • 2012 Application Filing Year
  • F04D Class
  • 1059 Applications Filed
  • 881 Patents Issued To-Date
  • 83.20 % Issued To-Date
Click to zoom InYear of Issuance% of Matters IssuedCumulative IssuancesYearly Issuances20122013201420152016201720182019202020210255075100

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Aiello, Nicholas New Haven, US 17 59
Knaul, David A Glastonbury, US 6 26
Maalouf, Fadi S East Hampton, US 19 125
Mali, Raji Shelton, US 2 10
Morgan, Orenthral T East Hartford, US 1 9

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Patent Citation Ranking

  • 9 Citation Count
  • F04D Class
  • 8.61 % this patent is cited more than
  • 12 Age
Citation count rangeNumber of patents cited in rangeNumber of patents cited in various citation count ranges1310523711101 - 1011 - 2021 - 3031 - 4061 - 7071 - 8005101520253035404550556065707580859095100105110115

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