EP1085198A3 - Actively controlled induction noise using a multipole inlet - Google Patents

Actively controlled induction noise using a multipole inlet Download PDF

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Publication number
EP1085198A3
EP1085198A3 EP00119166A EP00119166A EP1085198A3 EP 1085198 A3 EP1085198 A3 EP 1085198A3 EP 00119166 A EP00119166 A EP 00119166A EP 00119166 A EP00119166 A EP 00119166A EP 1085198 A3 EP1085198 A3 EP 1085198A3
Authority
EP
European Patent Office
Prior art keywords
duct
channels
loudspeaker
engine
noise
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.)
Granted
Application number
EP00119166A
Other languages
German (de)
French (fr)
Other versions
EP1085198B1 (en
EP1085198A2 (en
Inventor
Ian R Mclean
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.)
Continental Tire Canada Inc
Original Assignee
Siemens Canada 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
Application filed by Siemens Canada Ltd filed Critical Siemens Canada Ltd
Publication of EP1085198A2 publication Critical patent/EP1085198A2/en
Publication of EP1085198A3 publication Critical patent/EP1085198A3/en
Application granted granted Critical
Publication of EP1085198B1 publication Critical patent/EP1085198B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/12—Intake silencers ; Sound modulation, transmission or amplification
    • F02M35/1205—Flow throttling or guiding
    • F02M35/1227—Flow throttling or guiding by using multiple air intake flow paths, e.g. bypass, honeycomb or pipes opening into an expansion chamber
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/12—Intake silencers ; Sound modulation, transmission or amplification
    • F02M35/1244—Intake silencers ; Sound modulation, transmission or amplification using interference; Masking or reflecting sound
    • F02M35/125—Intake silencers ; Sound modulation, transmission or amplification using interference; Masking or reflecting sound by using active elements, e.g. speakers

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Exhaust Silencers (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)

Abstract

An active noise attenuation assembly for an air induction system of an internal combustion engine is located in an air inlet duct leading to the engine. A fairing body is concentrically mounted within the duct and defines an annular space with the duct through which air travels. A loudspeaker is mounted on the fairing body facing outwardly from the duct. A controller generates an electrical signal amplified and phase shifted from a noise field emanating from the engine. The signal is applied to the loudspeaker for broadcasting a sound field phase shifted from the noise field for attenuating the noise field. A transition housing forms a first plurality of channels and a second plurality of channels. The housing mates to the outlet opening of the inlet duct. The first plurality of channels communicates with the loudspeaker and the second plurality of channels communicates with the annular space. The channels terminate at an end opposite the duct in a checkered pattern.
EP20000119166 1999-09-14 2000-09-05 Actively controlled induction noise using a multipole inlet Expired - Lifetime EP1085198B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US15372299P 1999-09-14 1999-09-14
US153722P 1999-09-14

Publications (3)

Publication Number Publication Date
EP1085198A2 EP1085198A2 (en) 2001-03-21
EP1085198A3 true EP1085198A3 (en) 2001-11-07
EP1085198B1 EP1085198B1 (en) 2002-12-04

Family

ID=22548458

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20000119166 Expired - Lifetime EP1085198B1 (en) 1999-09-14 2000-09-05 Actively controlled induction noise using a multipole inlet

Country Status (2)

Country Link
EP (1) EP1085198B1 (en)
DE (1) DE60000904T2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6959093B2 (en) * 2001-04-12 2005-10-25 Siemens Vdo Automotive Inc. Low frequency active noise control
DE10332610A1 (en) * 2003-07-17 2005-02-24 Siemens Ag Noise reduction system for use on combustion engines uses loud speaker in flow duct to cancel generated noise
US11021039B2 (en) * 2017-10-20 2021-06-01 Hanon Systems Noise attenuation from waffle pattern and tongue and groove coupling for front of dash

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3936606A (en) * 1971-12-07 1976-02-03 Wanke Ronald L Acoustic abatement method and apparatus
FR2740599A1 (en) * 1995-10-30 1997-04-30 Technofirst ACTIVE ACOUSTIC MITIGATION DEVICE INTENDED TO BE ARRANGED WITHIN A DUCT, PARTICULARLY FOR SOUNDPROOFING A VENTILATION AND / OR AIR CONDITIONING NETWORK
WO1997020307A1 (en) * 1995-11-30 1997-06-05 Siemens Electric Limited System and method for reducing engine noise
EP0884471A2 (en) * 1997-06-10 1998-12-16 Siemens Canada Limited Active noise attenuation system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3936606A (en) * 1971-12-07 1976-02-03 Wanke Ronald L Acoustic abatement method and apparatus
FR2740599A1 (en) * 1995-10-30 1997-04-30 Technofirst ACTIVE ACOUSTIC MITIGATION DEVICE INTENDED TO BE ARRANGED WITHIN A DUCT, PARTICULARLY FOR SOUNDPROOFING A VENTILATION AND / OR AIR CONDITIONING NETWORK
WO1997020307A1 (en) * 1995-11-30 1997-06-05 Siemens Electric Limited System and method for reducing engine noise
EP0884471A2 (en) * 1997-06-10 1998-12-16 Siemens Canada Limited Active noise attenuation system

Also Published As

Publication number Publication date
EP1085198B1 (en) 2002-12-04
DE60000904D1 (en) 2003-01-16
DE60000904T2 (en) 2003-09-18
EP1085198A2 (en) 2001-03-21

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