CA1156476A - Gas turbine noise suppressor - Google Patents

Gas turbine noise suppressor

Info

Publication number
CA1156476A
CA1156476A CA000360550A CA360550A CA1156476A CA 1156476 A CA1156476 A CA 1156476A CA 000360550 A CA000360550 A CA 000360550A CA 360550 A CA360550 A CA 360550A CA 1156476 A CA1156476 A CA 1156476A
Authority
CA
Canada
Prior art keywords
inner pipe
pipe
tab
pressure field
discharge end
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
CA000360550A
Other languages
English (en)
French (fr)
Inventor
Richard S. Larson
Allan B. Packman
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
RTX Corp
Original Assignee
United Technologies Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by United Technologies Corp filed Critical United Technologies Corp
Application granted granted Critical
Publication of CA1156476A publication Critical patent/CA1156476A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02K—JET-PROPULSION PLANTS
    • F02K1/00—Plants characterised by the form or arrangement of the jet pipe or nozzle; Jet pipes or nozzles peculiar thereto
    • F02K1/46—Nozzles having means for adding air to the jet or for augmenting the mixing region between the jet and the ambient air, e.g. for silencing

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
  • Exhaust Silencers (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
CA000360550A 1979-10-22 1980-09-16 Gas turbine noise suppressor Expired CA1156476A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US06/087,188 US4284170A (en) 1979-10-22 1979-10-22 Gas turbine noise suppressor
US87,188 1979-10-22

Publications (1)

Publication Number Publication Date
CA1156476A true CA1156476A (en) 1983-11-08

Family

ID=22203614

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000360550A Expired CA1156476A (en) 1979-10-22 1980-09-16 Gas turbine noise suppressor

Country Status (4)

Country Link
US (1) US4284170A (enExample)
CA (1) CA1156476A (enExample)
FR (1) FR2467990A1 (enExample)
GB (1) GB2061390B (enExample)

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2207468A (en) * 1987-06-01 1989-02-01 Secr Defence Vortex silencing in gas turbine engines
US5422443A (en) * 1991-10-18 1995-06-06 Hughes Missile Systems Company Rocket exhaust disrupter shapes
US5924632A (en) * 1996-05-02 1999-07-20 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Jet nozzle having centerbody for enhanced exit area mixing
US6082635A (en) * 1996-06-12 2000-07-04 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Undulated nozzle for enhanced exit area mixing
US5848526A (en) * 1996-10-21 1998-12-15 United Technologies Corporation Noise reducing stator assembly for a gas turbine engine
US5894721A (en) * 1996-10-21 1999-04-20 United Technologies Corporation Noise reducing stator assembly for a gas turbine engine
US6360528B1 (en) * 1997-10-31 2002-03-26 General Electric Company Chevron exhaust nozzle for a gas turbine engine
US6314721B1 (en) * 1998-09-04 2001-11-13 United Technologies Corporation Tabbed nozzle for jet noise suppression
US6487848B2 (en) * 1998-11-06 2002-12-03 United Technologies Corporation Gas turbine engine jet noise suppressor
GB9925193D0 (en) * 1999-10-26 1999-12-22 Rolls Royce Plc Gas turbine engine exhaust nozzle
US6612106B2 (en) 2000-05-05 2003-09-02 The Boeing Company Segmented mixing device having chevrons for exhaust noise reduction in jet engines
US6502383B1 (en) 2000-08-31 2003-01-07 General Electric Company Stub airfoil exhaust nozzle
US6640537B2 (en) 2000-12-18 2003-11-04 Pratt & Whitney Canada Corp. Aero-engine exhaust jet noise reduction assembly
GB2372780A (en) * 2001-03-03 2002-09-04 Rolls Royce Plc Gas turbine engine nozzle with noise-reducing tabs
US6532729B2 (en) 2001-05-31 2003-03-18 General Electric Company Shelf truncated chevron exhaust nozzle for reduction of exhaust noise and infrared (IR) signature
US6505706B2 (en) 2001-06-14 2003-01-14 Pratt & Whitney Canada Corp. Exhaust flow guide for jet noise reduction
US7293401B2 (en) * 2002-03-20 2007-11-13 The Regents Of The University Of California Jet engine noise suppressor
GB0219461D0 (en) * 2002-08-21 2002-09-25 Rolls Royce Plc Fuel injection arrangement
US7234304B2 (en) * 2002-10-23 2007-06-26 Pratt & Whitney Canada Corp Aerodynamic trip to improve acoustic transmission loss and reduce noise level for gas turbine engine
US7272930B2 (en) * 2003-09-25 2007-09-25 Siemens Power Generation Exhaust diffuser assembly with tunable velocity profile
US7412832B2 (en) * 2004-03-26 2008-08-19 General Electric Company Method and apparatus for operating gas turbine engines
US20060059891A1 (en) * 2004-09-23 2006-03-23 Honeywell International, Inc. Quiet chevron/tab exhaust eductor system
US7520124B2 (en) * 2006-09-12 2009-04-21 United Technologies Corporation Asymmetric serrated nozzle for exhaust noise reduction
FR2920035B1 (fr) 2007-08-17 2013-09-06 Airbus France Turbomoteur a emission de bruit reduite pour aeronef
FR2930972B1 (fr) * 2008-05-07 2012-11-30 Airbus France Turbomachine a double flux pour aeronef a emission de bruit reduite
US8087250B2 (en) 2008-06-26 2012-01-03 General Electric Company Duplex tab exhaust nozzle
US8635875B2 (en) 2010-04-29 2014-01-28 Pratt & Whitney Canada Corp. Gas turbine engine exhaust mixer including circumferentially spaced-apart radial rows of tabs extending downstream on the radial walls, crests and troughs

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3153319A (en) * 1952-07-25 1964-10-20 Young Alec David Jet noise suppression means
US3055174A (en) * 1957-01-14 1962-09-25 Boeing Co Retractable noise suppressor for jet engines
GB865838A (en) * 1958-05-31 1961-04-19 Walter Eberspacher Jet propulsion nozzle for jet propulsion power plants
GB1045295A (en) * 1964-03-25 1966-10-12 Peter Bradshaw Improvements in or relating to a jet noise suppression device
US3463402A (en) * 1966-12-28 1969-08-26 United Aircraft Corp Jet sound suppressing means
US3648800A (en) * 1970-04-27 1972-03-14 Gen Electric Coanda expansion exhaust nozzle suppressor
US3664455A (en) * 1971-03-15 1972-05-23 Rohr Corp Twisted vane sound suppressor for aircraft jet engine
GB1409887A (en) * 1972-12-18 1975-10-15 Secr Defence Aircraft gas turbine engine noise suppression
US4175640A (en) * 1975-03-31 1979-11-27 Boeing Commercial Airplane Company Vortex generators for internal mixing in a turbofan engine
US4149375A (en) * 1976-11-29 1979-04-17 United Technologies Corporation Lobe mixer for gas turbine engine
GB2007303B (en) * 1977-11-04 1982-04-07 Rolls Royce By-pass gas turbine engines

Also Published As

Publication number Publication date
FR2467990A1 (fr) 1981-04-30
GB2061390B (en) 1983-01-19
GB2061390A (en) 1981-05-13
US4284170A (en) 1981-08-18
FR2467990B1 (enExample) 1983-12-09

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Legal Events

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