Fuel spray nozzle for a gas turbine engine

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9915429
SERIAL NO

14553451

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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Nozzle for engine has coaxial arrangement of inner pilot and outer mains airblast fuel injectors and intermediate air-swirler passage sandwiched between the outer and inner air-swirler passages of the pilot and mains airblast fuel injectors, respectively. The nozzle has an annular first-splitter wall separating the pilot outer air-swirler passage from the intermediate one. An outer surface profile of the first-splitter wall defines radially inner side of the intermediate air-swirler passage. The nozzle has an annular second-splitter wall separating the intermediate air-swirler passage from mains inner air-swirler passage. An inner surface profile of second-splitter wall defines radially outer side of intermediate air-swirler passage. The outer and inner surface profile of the first and second splitters walls, respectively, have convergent sections facing each other forming convergent portion of the intermediate air-swirler passage. The inner surface profile of the second-splitter wall has a divergent section downstream of its convergent section.

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Patent Owner(s)

Patent OwnerAddress
ROLLS-ROYCE PLC62 BUCKINGHAM GATE LONDON SW1E 6AT

International Classification(s)

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  • 2014 Application Filing Year
  • F23R Class
  • 423 Applications Filed
  • 330 Patents Issued To-Date
  • 78.02 % Issued To-Date
Click to zoom InYear of Issuance% of Matters IssuedCumulative IssuancesYearly Issuances2014201520162017201820192020202120220255075100

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hicks, Robert Anthony Derby, GB 3 29
Toon, Ian James Leicester, GB 8 58

Cited Art Landscape

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Patent Citation Ranking

  • 5 Citation Count
  • F23R Class
  • 12.28 % this patent is cited more than
  • 7 Age
Citation count rangeNumber of patents cited in rangeNumber of patents cited in various citation count ranges747301 - 1011 - 2002.557.51012.51517.52022.52527.53032.53537.54042.54547.550

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