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IT7925254A0 - Metodo ed apparato per sopprimere il rumore a bassa frequenza, generato internamente, di un turbomotore a gas. - Google Patents

Metodo ed apparato per sopprimere il rumore a bassa frequenza, generato internamente, di un turbomotore a gas.

Info

Publication number
IT7925254A0
IT7925254A0 IT7925254A IT2525479A IT7925254A0 IT 7925254 A0 IT7925254 A0 IT 7925254A0 IT 7925254 A IT7925254 A IT 7925254A IT 2525479 A IT2525479 A IT 2525479A IT 7925254 A0 IT7925254 A0 IT 7925254A0
Authority
IT
Italy
Prior art keywords
turboengine
suppressing
gas
low frequency
frequency noise
Prior art date
Application number
IT7925254A
Other languages
English (en)
Other versions
IT1122866B (it
Original Assignee
Gen Electric
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 Gen Electric filed Critical Gen Electric
Publication of IT7925254A0 publication Critical patent/IT7925254A0/it
Application granted granted Critical
Publication of IT1122866B publication Critical patent/IT1122866B/it

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/161—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general in systems with fluid flow

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • Fluid Mechanics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Exhaust Silencers (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)
IT25254/79A 1978-12-01 1979-08-21 Metodo ed apparato per sopprimere il rumore a bassa frequenza,generato internamente,di un turbomotore a gas IT1122866B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/965,652 US4244440A (en) 1978-12-01 1978-12-01 Apparatus for suppressing internally generated gas turbine engine low frequency noise

Publications (2)

Publication Number Publication Date
IT7925254A0 true IT7925254A0 (it) 1979-08-21
IT1122866B IT1122866B (it) 1986-04-30

Family

ID=25510281

Family Applications (1)

Application Number Title Priority Date Filing Date
IT25254/79A IT1122866B (it) 1978-12-01 1979-08-21 Metodo ed apparato per sopprimere il rumore a bassa frequenza,generato internamente,di un turbomotore a gas

Country Status (6)

Country Link
US (1) US4244440A (it)
JP (1) JPS5575538A (it)
DE (1) DE2934996A1 (it)
FR (1) FR2442970B1 (it)
GB (1) GB2036875B (it)
IT (1) IT1122866B (it)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3339106C1 (de) * 1983-10-28 1985-04-04 Metronic Electronic GmbH, 7210 Rottweil Elektromotorisch angetriebenes Geblaese fuer ein Luftsprudelmassagegeraet
US4733751A (en) * 1985-12-27 1988-03-29 General Dynamics, Pomona Division Rocket exhaust disrupter
US4979587A (en) * 1989-08-01 1990-12-25 The Boeing Company Jet engine noise suppressor
US5929396A (en) * 1997-07-29 1999-07-27 Awad; Elias A. Noise reducing diffuser
GB0000279D0 (en) * 2000-01-08 2000-03-01 Wood Group Pressure Control Li Pipe choke
US6886598B2 (en) * 2001-01-08 2005-05-03 Wood Group Pressure Control Limited Choke restrictor devices and methods
US7469720B2 (en) * 2003-04-28 2008-12-30 Wood Group Pressure Control Limited High energy dissipative and erosion resistant fluid flow enhancer
US7412832B2 (en) * 2004-03-26 2008-08-19 General Electric Company Method and apparatus for operating gas turbine engines
US7246481B2 (en) * 2004-03-26 2007-07-24 General Electric Company Methods and apparatus for operating gas turbine engines
WO2008115173A1 (en) * 2007-03-15 2008-09-25 Dow Global Technologies Inc. Mixer for a continuous flow reactor, continuous flow reactor, method of forming such a mixer, and method of operating such a reactor
GB201007215D0 (en) 2010-04-30 2010-06-16 Rolls Royce Plc Gas turbine engine
CA2898486C (en) * 2010-05-20 2018-04-24 William Matthew Martin Method and device for in-line injection of flocculent agent into a fluid flow of mature fine tailings
US8307943B2 (en) 2010-07-29 2012-11-13 General Electric Company High pressure drop muffling system
US8430202B1 (en) 2011-12-28 2013-04-30 General Electric Company Compact high-pressure exhaust muffling devices
US8511096B1 (en) 2012-04-17 2013-08-20 General Electric Company High bleed flow muffling system
US9399951B2 (en) 2012-04-17 2016-07-26 General Electric Company Modular louver system
US8550208B1 (en) 2012-04-23 2013-10-08 General Electric Company High pressure muffling devices
US10794515B2 (en) * 2017-12-14 2020-10-06 Thomas A. Hartman Valve or pipe discharge with velocity reduction discharge plate
USD853274S1 (en) * 2018-02-08 2019-07-09 In The Black Revocable Trust Planter

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2915136A (en) * 1956-05-28 1959-12-01 Friedrich O Ringleb Apparatus for suppressing noise
US2987883A (en) * 1959-06-22 1961-06-13 Boeing Co Jet engine noise suppression nozzle with aerodynamic supplemental fluting
US3033307A (en) * 1959-10-06 1962-05-08 Industrial Acoustics Co Noise attenuating apparatus
US3392529A (en) * 1965-07-23 1968-07-16 Rolls Royce Aircraft provided with a gas turbine vertical lift engine
GB1110154A (en) * 1966-04-05 1968-04-18 Rolls Royce Aircraft jet power plant
US3495682A (en) * 1968-02-28 1970-02-17 Otis D Treiber Jet engine exhaust silencer construction
FR1580553A (it) * 1968-07-26 1969-09-05
US3630311A (en) * 1969-07-31 1971-12-28 Gen Electric Jet engine nozzle system for noise suppression
FR2094212A5 (it) * 1970-05-11 1972-02-04 Bertin & Cie
FR2214855B1 (it) * 1973-01-22 1976-04-30 Aerospatiale
US3987883A (en) * 1975-04-17 1976-10-26 International Business Machines Corporation Ribbon lifting mechanism for a wire matrix printer
US4064961A (en) * 1976-04-05 1977-12-27 Rohr Industries, Incorporated Slanted cavity resonator
US4135363A (en) * 1976-05-13 1979-01-23 United Technologies Corporation Device to provide flow inversion in a turbofan exhaust tailpipe to achieve low jet noise
US4109750A (en) * 1977-05-24 1978-08-29 Lockheed Aircraft Corporation Zeno duct sound attenuating means

Also Published As

Publication number Publication date
FR2442970A1 (fr) 1980-06-27
DE2934996A1 (de) 1980-06-12
IT1122866B (it) 1986-04-30
US4244440A (en) 1981-01-13
GB2036875B (en) 1982-09-29
JPS5575538A (en) 1980-06-06
JPH0319366B2 (it) 1991-03-14
GB2036875A (en) 1980-07-02
FR2442970B1 (fr) 1985-06-07

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