DE69320436D1 - Adaptives Schalldämpfungssystem einer Verbrennungsvorrichtung - Google Patents

Adaptives Schalldämpfungssystem einer Verbrennungsvorrichtung

Info

Publication number
DE69320436D1
DE69320436D1 DE69320436T DE69320436T DE69320436D1 DE 69320436 D1 DE69320436 D1 DE 69320436D1 DE 69320436 T DE69320436 T DE 69320436T DE 69320436 T DE69320436 T DE 69320436T DE 69320436 D1 DE69320436 D1 DE 69320436D1
Authority
DE
Germany
Prior art keywords
combustion device
silencing system
adaptive silencing
adaptive
combustion
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 - Fee Related
Application number
DE69320436T
Other languages
English (en)
Other versions
DE69320436T2 (de
Inventor
Masamitsu Kondou
Yasuhiro Umekage
Kunio Nakamura
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
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
Priority claimed from JP4275653A external-priority patent/JPH06129637A/ja
Priority claimed from JP4275649A external-priority patent/JPH06129636A/ja
Priority claimed from JP5016070A external-priority patent/JPH06229544A/ja
Priority claimed from JP5017180A external-priority patent/JPH06229545A/ja
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Application granted granted Critical
Publication of DE69320436D1 publication Critical patent/DE69320436D1/de
Publication of DE69320436T2 publication Critical patent/DE69320436T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23NREGULATING OR CONTROLLING COMBUSTION
    • F23N5/00Systems for controlling combustion
    • F23N5/16Systems for controlling combustion using noise-sensitive detectors
    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10KSOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00Methods 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
    • G10K11/16Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/175Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound
    • G10K11/178Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
    • G10K11/1781Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase characterised by the analysis of input or output signals, e.g. frequency range, modes, transfer functions
    • G10K11/17821Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase characterised by the analysis of input or output signals, e.g. frequency range, modes, transfer functions characterised by the analysis of the input signals only
    • G10K11/17825Error signals
    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10KSOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00Methods 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
    • G10K11/16Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/175Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound
    • G10K11/178Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
    • G10K11/1785Methods, e.g. algorithms; Devices
    • G10K11/17853Methods, e.g. algorithms; Devices of the filter
    • G10K11/17854Methods, e.g. algorithms; Devices of the filter the filter being an adaptive filter
    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10KSOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00Methods 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
    • G10K11/16Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/175Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound
    • G10K11/178Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
    • G10K11/1785Methods, e.g. algorithms; Devices
    • G10K11/17857Geometric disposition, e.g. placement of microphones
    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10KSOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00Methods 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
    • G10K11/16Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/175Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound
    • G10K11/178Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
    • G10K11/1785Methods, e.g. algorithms; Devices
    • G10K11/17861Methods, e.g. algorithms; Devices using additional means for damping sound, e.g. using sound absorbing panels
    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10KSOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00Methods 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
    • G10K11/16Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/175Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound
    • G10K11/178Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
    • G10K11/1787General system configurations
    • G10K11/17879General system configurations using both a reference signal and an error signal
    • G10K11/17881General system configurations using both a reference signal and an error signal the reference signal being an acoustic signal, e.g. recorded with a microphone
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23RGENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGH VELOCITY, e.g. GAS-TURBINE COMBUSTION CHAMBERS
    • F23R2900/00Special features of, or arrangements for continuous combustion chambers; Combustion processes therefor
    • F23R2900/00013Reducing thermo-acoustic vibrations by active means
    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10KSOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K2210/00Details of active noise control [ANC] covered by G10K11/178 but not provided for in any of its subgroups
    • G10K2210/10Applications
    • G10K2210/101One dimensional
    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10KSOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K2210/00Details of active noise control [ANC] covered by G10K11/178 but not provided for in any of its subgroups
    • G10K2210/30Means
    • G10K2210/301Computational
    • G10K2210/3045Multiple acoustic inputs, single acoustic output
    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10KSOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K2210/00Details of active noise control [ANC] covered by G10K11/178 but not provided for in any of its subgroups
    • G10K2210/30Means
    • G10K2210/321Physical
    • G10K2210/3212Actuator details, e.g. composition or microstructure
    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10KSOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K2210/00Details of active noise control [ANC] covered by G10K11/178 but not provided for in any of its subgroups
    • G10K2210/30Means
    • G10K2210/321Physical
    • G10K2210/3212Actuator details, e.g. composition or microstructure
    • G10K2210/32121Fluid amplifiers, e.g. modulated gas flow speaker using electrovalves

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Combustion (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
DE69320436T 1992-10-14 1993-10-13 Adaptives Schalldämpfungssystem einer Verbrennungsvorrichtung Expired - Fee Related DE69320436T2 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP4275653A JPH06129637A (ja) 1992-10-14 1992-10-14 燃焼装置
JP4275649A JPH06129636A (ja) 1992-10-14 1992-10-14 燃焼装置
JP5016070A JPH06229544A (ja) 1993-02-03 1993-02-03 燃焼装置
JP5017180A JPH06229545A (ja) 1993-02-04 1993-02-04 燃焼装置

Publications (2)

Publication Number Publication Date
DE69320436D1 true DE69320436D1 (de) 1998-09-24
DE69320436T2 DE69320436T2 (de) 1999-04-29

Family

ID=27456493

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69320436T Expired - Fee Related DE69320436T2 (de) 1992-10-14 1993-10-13 Adaptives Schalldämpfungssystem einer Verbrennungsvorrichtung

Country Status (4)

Country Link
US (1) US5445517A (de)
EP (1) EP0593045B1 (de)
KR (1) KR0130635B1 (de)
DE (1) DE69320436T2 (de)

Families Citing this family (70)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4441364C1 (de) * 1994-11-21 1995-12-07 Daimler Benz Ag Verfahren zur Beaufschlagung einer Vorrichtung bzw. Anlage mit alternierendem, pulsierendem bzw. getaktetem Kraft- oder Energiestrom
US5809769A (en) * 1996-11-06 1998-09-22 The United States Of America As Represented By The United States Department Of Energy Combustor oscillation attenuation via the control of fuel-supply line dynamics
CA2311801A1 (en) * 1997-11-26 1999-06-03 Gary M. Hazard Wave flame control
EP0926325A3 (de) 1997-12-23 2001-04-25 United Technologies Corporation Einrichtung für einen mit flüssigem Brennstoff betriebene Brennkammer
US6560967B1 (en) 1998-05-29 2003-05-13 Jeffrey Mark Cohen Method and apparatus for use with a gas fueled combustor
US6158957A (en) * 1998-12-23 2000-12-12 United Technologies Corporation Thermal barrier removal process
US6398547B1 (en) * 2000-03-31 2002-06-04 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Oxy-fuel combustion firing configurations and methods
CA2369539C (en) * 2001-01-30 2006-07-11 Mitsubishi Heavy Industries, Ltd. Combustion vibration estimating apparatus, plant and gas turbine plant
US6436337B1 (en) * 2001-04-27 2002-08-20 Jupiter Oxygen Corporation Oxy-fuel combustion system and uses therefor
US6879922B2 (en) * 2001-09-19 2005-04-12 General Electric Company Systems and methods for suppressing pressure waves using corrective signal
DE10213682A1 (de) * 2002-03-27 2003-10-09 Alstom Switzerland Ltd Verfahren und Vorrichtung zur Kontrolle von thermoakustischen Instabilitäten bzw. Schwingungen in einem Verbrennungssystem
GB2393514B (en) 2002-09-24 2005-02-02 Invensys Controls Uk Ltd Diagnostic tool for an energy conversion appliance
US6913457B2 (en) 2003-07-30 2005-07-05 American Air Liquide, Inc. Method and apparatus for optimized CO post-combustion in low NOx combustion processes
US7406820B2 (en) * 2005-03-25 2008-08-05 Honeywell International Inc. System and method for turbine engine adaptive control for mitigation of instabilities
US8028512B2 (en) 2007-11-28 2011-10-04 Solar Turbines Inc. Active combustion control for a turbine engine
US7775320B2 (en) * 2008-03-20 2010-08-17 Honda Motor Co., Ltd. Method for reducing noise in a vehicle cabin
US8331577B2 (en) * 2008-07-03 2012-12-11 Hewlett-Packard Development Company, L.P. Electronic device having active noise control with an external sensor
US8220267B1 (en) * 2009-10-01 2012-07-17 Florida Turbine Technologies, Inc. Process to detect two-phase flow in a conduit
DE102010018659A1 (de) * 2010-04-28 2011-11-03 J. Eberspächer GmbH & Co. KG Kolbenmotor, Verfahren und Verwendung
US8494757B2 (en) * 2010-08-17 2013-07-23 GM Global Technology Operations LLC Method for estimating and controlling accoustic noise during combustion
JP5937611B2 (ja) 2010-12-03 2016-06-22 シラス ロジック、インコーポレイテッド パーソナルオーディオデバイスにおける適応ノイズキャンセラの監視制御
US8908877B2 (en) 2010-12-03 2014-12-09 Cirrus Logic, Inc. Ear-coupling detection and adjustment of adaptive response in noise-canceling in personal audio devices
US8958571B2 (en) * 2011-06-03 2015-02-17 Cirrus Logic, Inc. MIC covering detection in personal audio devices
US9214150B2 (en) 2011-06-03 2015-12-15 Cirrus Logic, Inc. Continuous adaptation of secondary path adaptive response in noise-canceling personal audio devices
US9318094B2 (en) 2011-06-03 2016-04-19 Cirrus Logic, Inc. Adaptive noise canceling architecture for a personal audio device
US9824677B2 (en) 2011-06-03 2017-11-21 Cirrus Logic, Inc. Bandlimiting anti-noise in personal audio devices having adaptive noise cancellation (ANC)
US8948407B2 (en) 2011-06-03 2015-02-03 Cirrus Logic, Inc. Bandlimiting anti-noise in personal audio devices having adaptive noise cancellation (ANC)
US9325821B1 (en) * 2011-09-30 2016-04-26 Cirrus Logic, Inc. Sidetone management in an adaptive noise canceling (ANC) system including secondary path modeling
US9014387B2 (en) 2012-04-26 2015-04-21 Cirrus Logic, Inc. Coordinated control of adaptive noise cancellation (ANC) among earspeaker channels
US9142205B2 (en) 2012-04-26 2015-09-22 Cirrus Logic, Inc. Leakage-modeling adaptive noise canceling for earspeakers
US9123321B2 (en) 2012-05-10 2015-09-01 Cirrus Logic, Inc. Sequenced adaptation of anti-noise generator response and secondary path response in an adaptive noise canceling system
US9319781B2 (en) 2012-05-10 2016-04-19 Cirrus Logic, Inc. Frequency and direction-dependent ambient sound handling in personal audio devices having adaptive noise cancellation (ANC)
US9318090B2 (en) 2012-05-10 2016-04-19 Cirrus Logic, Inc. Downlink tone detection and adaptation of a secondary path response model in an adaptive noise canceling system
US9082387B2 (en) 2012-05-10 2015-07-14 Cirrus Logic, Inc. Noise burst adaptation of secondary path adaptive response in noise-canceling personal audio devices
US9532139B1 (en) 2012-09-14 2016-12-27 Cirrus Logic, Inc. Dual-microphone frequency amplitude response self-calibration
US20140165576A1 (en) * 2012-12-13 2014-06-19 General Electric Company Active control fuel nozzle system
US9107010B2 (en) 2013-02-08 2015-08-11 Cirrus Logic, Inc. Ambient noise root mean square (RMS) detector
US9369798B1 (en) 2013-03-12 2016-06-14 Cirrus Logic, Inc. Internal dynamic range control in an adaptive noise cancellation (ANC) system
US9414150B2 (en) 2013-03-14 2016-08-09 Cirrus Logic, Inc. Low-latency multi-driver adaptive noise canceling (ANC) system for a personal audio device
US9215749B2 (en) 2013-03-14 2015-12-15 Cirrus Logic, Inc. Reducing an acoustic intensity vector with adaptive noise cancellation with two error microphones
US9635480B2 (en) 2013-03-15 2017-04-25 Cirrus Logic, Inc. Speaker impedance monitoring
US9324311B1 (en) 2013-03-15 2016-04-26 Cirrus Logic, Inc. Robust adaptive noise canceling (ANC) in a personal audio device
US9208771B2 (en) 2013-03-15 2015-12-08 Cirrus Logic, Inc. Ambient noise-based adaptation of secondary path adaptive response in noise-canceling personal audio devices
US9467776B2 (en) 2013-03-15 2016-10-11 Cirrus Logic, Inc. Monitoring of speaker impedance to detect pressure applied between mobile device and ear
US10206032B2 (en) 2013-04-10 2019-02-12 Cirrus Logic, Inc. Systems and methods for multi-mode adaptive noise cancellation for audio headsets
US9462376B2 (en) 2013-04-16 2016-10-04 Cirrus Logic, Inc. Systems and methods for hybrid adaptive noise cancellation
US9460701B2 (en) 2013-04-17 2016-10-04 Cirrus Logic, Inc. Systems and methods for adaptive noise cancellation by biasing anti-noise level
US9478210B2 (en) 2013-04-17 2016-10-25 Cirrus Logic, Inc. Systems and methods for hybrid adaptive noise cancellation
US9578432B1 (en) 2013-04-24 2017-02-21 Cirrus Logic, Inc. Metric and tool to evaluate secondary path design in adaptive noise cancellation systems
US9264808B2 (en) 2013-06-14 2016-02-16 Cirrus Logic, Inc. Systems and methods for detection and cancellation of narrow-band noise
US9392364B1 (en) 2013-08-15 2016-07-12 Cirrus Logic, Inc. Virtual microphone for adaptive noise cancellation in personal audio devices
US9666176B2 (en) 2013-09-13 2017-05-30 Cirrus Logic, Inc. Systems and methods for adaptive noise cancellation by adaptively shaping internal white noise to train a secondary path
US9620101B1 (en) 2013-10-08 2017-04-11 Cirrus Logic, Inc. Systems and methods for maintaining playback fidelity in an audio system with adaptive noise cancellation
US10219071B2 (en) 2013-12-10 2019-02-26 Cirrus Logic, Inc. Systems and methods for bandlimiting anti-noise in personal audio devices having adaptive noise cancellation
US9704472B2 (en) 2013-12-10 2017-07-11 Cirrus Logic, Inc. Systems and methods for sharing secondary path information between audio channels in an adaptive noise cancellation system
US10382864B2 (en) 2013-12-10 2019-08-13 Cirrus Logic, Inc. Systems and methods for providing adaptive playback equalization in an audio device
US9369557B2 (en) 2014-03-05 2016-06-14 Cirrus Logic, Inc. Frequency-dependent sidetone calibration
US9479860B2 (en) 2014-03-07 2016-10-25 Cirrus Logic, Inc. Systems and methods for enhancing performance of audio transducer based on detection of transducer status
US9648410B1 (en) 2014-03-12 2017-05-09 Cirrus Logic, Inc. Control of audio output of headphone earbuds based on the environment around the headphone earbuds
US9319784B2 (en) 2014-04-14 2016-04-19 Cirrus Logic, Inc. Frequency-shaped noise-based adaptation of secondary path adaptive response in noise-canceling personal audio devices
US9609416B2 (en) 2014-06-09 2017-03-28 Cirrus Logic, Inc. Headphone responsive to optical signaling
US10181315B2 (en) 2014-06-13 2019-01-15 Cirrus Logic, Inc. Systems and methods for selectively enabling and disabling adaptation of an adaptive noise cancellation system
US9478212B1 (en) 2014-09-03 2016-10-25 Cirrus Logic, Inc. Systems and methods for use of adaptive secondary path estimate to control equalization in an audio device
US9552805B2 (en) 2014-12-19 2017-01-24 Cirrus Logic, Inc. Systems and methods for performance and stability control for feedback adaptive noise cancellation
EP3104078A1 (de) * 2015-06-12 2016-12-14 IFTA Ingenieurbüro Für Thermoakustik GmbH Thermoakustisches vorläuferverfahren und vorrichtung
KR20180044324A (ko) 2015-08-20 2018-05-02 시러스 로직 인터내셔널 세미컨덕터 리미티드 피드백 적응적 잡음 소거(anc) 제어기 및 고정 응답 필터에 의해 부분적으로 제공되는 피드백 응답을 갖는 방법
US9578415B1 (en) 2015-08-21 2017-02-21 Cirrus Logic, Inc. Hybrid adaptive noise cancellation system with filtered error microphone signal
US10013966B2 (en) 2016-03-15 2018-07-03 Cirrus Logic, Inc. Systems and methods for adaptive active noise cancellation for multiple-driver personal audio device
CN108870439A (zh) * 2018-07-27 2018-11-23 中国东方电气集团有限公司 一种用于燃烧设备的燃烧振荡控制结构
IT202000029960A1 (it) * 2020-12-04 2022-06-04 Beckett Thermal Solutions S R L Sistema e metodo di combustione, in particolare per caldaia

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1577322A (en) * 1976-05-13 1980-10-22 Bearcroft R Active attenuation of recurring vibrations
US4583936A (en) * 1983-06-24 1986-04-22 Gas Research Institute Frequency modulated burner system
JPS61296392A (ja) * 1985-06-26 1986-12-27 日立プラント建設株式会社 電子消音システム
FR2645247B2 (fr) * 1988-06-22 1991-06-07 Centre Nat Rech Scient Procede et dispositif de controle actif des instabilites de combustion
JPH02285799A (ja) * 1989-04-27 1990-11-26 Bridgestone Corp ファン騒音制御装置
JPH0336897A (ja) * 1989-07-03 1991-02-18 Hitachi Plant Eng & Constr Co Ltd 電子消音システム
JPH0376500A (ja) * 1989-08-18 1991-04-02 Hitachi Plant Eng & Constr Co Ltd 電子消音システム
GB2239961A (en) * 1990-01-02 1991-07-17 Gen Electric Control of combustion-induced instabilities
US5105377A (en) * 1990-02-09 1992-04-14 Noise Cancellation Technologies, Inc. Digital virtual earth active cancellation system
US5229556A (en) * 1990-04-25 1993-07-20 Ford Motor Company Internal ported band pass enclosure for sound cancellation
US5060271A (en) * 1990-05-04 1991-10-22 Ford Motor Company Active muffler with dynamic tuning
JPH04272416A (ja) * 1991-01-29 1992-09-29 Sango:Kk アクティブキャンセルマフラ
US5325438A (en) * 1993-02-01 1994-06-28 At&T Bell Laboratories Active noise-cancellation system for automotive mufflers

Also Published As

Publication number Publication date
DE69320436T2 (de) 1999-04-29
EP0593045A2 (de) 1994-04-20
KR940009588A (ko) 1994-05-20
US5445517A (en) 1995-08-29
EP0593045B1 (de) 1998-08-19
KR0130635B1 (ko) 1998-04-09
EP0593045A3 (en) 1994-06-08

Similar Documents

Publication Publication Date Title
DE69320436D1 (de) Adaptives Schalldämpfungssystem einer Verbrennungsvorrichtung
DE4390169T1 (de) Motorbefestigung
DE69213688T2 (de) Katalytisches Verbrennungsgerät
FI934272A0 (fi) Skaermare elstickproppsammansaettningar
DE69313474D1 (de) Hydroelastisches Motorlager
DE69318242T2 (de) Einlassregelanlage einer Turbomaschine
DE69425532T2 (de) Einlassvorrichtung einer Dieselkraftmaschine
DE69302060T2 (de) Pulsierende Verbrennungsvorrichtung
DE69302814D1 (de) Katalytische verbrennung
FI935186A (fi) Äänenvaimennusjärjestelmä
DE69309497T2 (de) Steuersystem einer brennkraftmaschine
DE69316466D1 (de) Motorregelvorrichtung
NO305741B1 (no) Anordning for demping av avgasslyden til en bÕtmotor
DE59305384D1 (de) Verbindungsteil einer Zündanlage
DK147792D0 (da) Forbraendingsmotor
DE69313199T2 (de) Kleinmotor
DE69317193D1 (de) Motorregelsystem
DE58909637D1 (de) Zündendstufe einer transistor-zündanlage
DE69606390T2 (de) Regelung einer brennanlage
DK147892D0 (da) Forbraendingsmotor
KR920019774U (ko) 자동차용 소음기
KR930020060U (ko) 보일러용 연소장치
DE69327104T2 (de) Brennkraftmaschine
KR940010579U (ko) 보일러의 배기조절장치
ATA177892A (de) Verbrennungseinrichtung

Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8328 Change in the person/name/address of the agent

Representative=s name: GROSSE, BOCKHORNI, SCHUMACHER, 81476 MUENCHEN

8339 Ceased/non-payment of the annual fee