Combustor with dilution holes

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 11668463
APP PUB NO 20230044804A1
SERIAL NO

17392884

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A combustor of an aircraft engine comprises a liner defining a primary and a dilution zone having a hot surface exposed to a flow of combustion gases traveling from the primary zone downstream to the dilution zone and a cold surface. Dilution holes extending through the liner from the cold to the hot surface delimit the primary from the dilution zone. Effusion holes extending through the liner from the cold to the hot surface direct cooling air into the dilution zone. Two or more rows of effusion holes positioned within three dilution hole diameters downstream of the dilution holes are oriented relative to the liner to direct the cooling air in a cooling direction that is at least one of normal to the direction of the flow of gases passing adjacent the effusion holes, and against the direction of the flow of gases passing adjacent the effusion holes.

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Patent Owner(s)

Patent OwnerAddress
PRATT & WHITNEY CANADA CORP1000 MARIE VICTORIN BLVD LONGUEUIL QU J4G 1A1

International Classification(s)

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  • 2021 Application Filing Year
  • F23M Class
  • 16 Applications Filed
  • 8 Patents Issued To-Date
  • 50 % Issued To-Date
Click to zoom InYear of Issuance% of Matters IssuedCumulative IssuancesYearly Issuances20212022202320240255075100

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hu, Tin-Cheung John Markham, CA 21 50

Cited Art Landscape

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Patent Citation Ranking

  • 0 Citation Count
  • F23M Class
  • 0 % this patent is cited more than
  • 2 Age
Citation count rangeNumber of patents cited in rangeNumber of patents cited in various citation count ranges38601 - 1002.557.51012.51517.52022.52527.53032.53537.540

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