EP2138700A2 - Filtre d'air et dispositif d'air frais équipé de celui-ci - Google Patents

Filtre d'air et dispositif d'air frais équipé de celui-ci Download PDF

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Publication number
EP2138700A2
EP2138700A2 EP09162269A EP09162269A EP2138700A2 EP 2138700 A2 EP2138700 A2 EP 2138700A2 EP 09162269 A EP09162269 A EP 09162269A EP 09162269 A EP09162269 A EP 09162269A EP 2138700 A2 EP2138700 A2 EP 2138700A2
Authority
EP
European Patent Office
Prior art keywords
housing
air filter
speaker
microphone
loudspeaker
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
EP09162269A
Other languages
German (de)
English (en)
Other versions
EP2138700A3 (fr
EP2138700B1 (fr
Inventor
Thomas Zirkelbach
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.)
Mahle International GmbH
Original Assignee
Mahle International GmbH
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 Mahle International GmbH filed Critical Mahle International GmbH
Publication of EP2138700A2 publication Critical patent/EP2138700A2/fr
Publication of EP2138700A3 publication Critical patent/EP2138700A3/fr
Application granted granted Critical
Publication of EP2138700B1 publication Critical patent/EP2138700B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F02M35/10—Air intakes; Induction systems
    • F02M35/10373—Sensors for intake systems
    • 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
    • F02M35/02—Air cleaners
    • F02M35/0201—Housings; Casings; Frame constructions; Lids; Manufacturing or assembling thereof
    • F02M35/0202—Manufacturing or assembling; Materials for air cleaner housings
    • 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
    • F02M35/02—Air cleaners
    • F02M35/0201—Housings; Casings; Frame constructions; Lids; Manufacturing or assembling thereof
    • F02M35/0209—Housings; Casings; Frame constructions; Lids; Manufacturing or assembling thereof comprising flexible, resilient, movable or rotatable elements, e.g. with vibrating or contracting movements; Springs; Valves; Flaps
    • 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
    • F02M35/02—Air cleaners
    • F02M35/024—Air cleaners using filters, e.g. moistened
    • 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
    • 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
    • F02M35/14—Combined air cleaners and silencers

Definitions

  • the present invention relates to an air filter for a fresh air system of an internal combustion engine, in particular in a motor vehicle, having the features of the preamble of claim 1.
  • the invention also relates to an equipped with such an air filter fresh air system of an internal combustion engine, especially in a motor vehicle.
  • the air filter for a fresh air system of a vehicle arranged in an internal combustion engine is known.
  • the air filter has a filter housing, which has two housing shells made of plastic.
  • a filter element is arranged so that it separates a clean room from a crude space.
  • one of the housing shells on a membrane which is made separately and is glued to the housing shell.
  • the membrane is used for passive sound modulation, for example, to reduce an intake noise of the internal combustion engine or to change this in a certain way.
  • a fresh air system for an internal combustion engine which is equipped with an active sound modulation device.
  • the sound modulation device comprises a loudspeaker, a microphone and a control unit which is connected on the input side to the microphone and on the output side to the loudspeaker.
  • the sound modulation device further comprises a device housing, in which the speaker is arranged with its own speaker housing, and allows active sound damping by means of anti-sound.
  • the known fresh air system also includes an air filter with a filter housing and a filter element arranged therein. In this case, the air filter with its filter housing and the sound modulation device with its device housing are arranged in a main housing.
  • the present invention is concerned with the problem of providing for an air filter of the type mentioned or for a fresh air system equipped therewith an improved embodiment, which is characterized in particular by the fact that it has a relatively high degree of integration, while having a relatively compact structure and in particular is inexpensive to produce.
  • the invention is based on the general idea of equipping the air filter with a loudspeaker, which may for example be part of a sound modulation device.
  • the loudspeaker has a loudspeaker diaphragm which can be actuated by an electromagnetic actuator.
  • the speaker diaphragm is injection molded integrally with one of the housing shells, while a speaker housing is mounted on said housing shell.
  • the structural summary of the air filter with a loudspeaker gives the air filter additional functionality.
  • it can be used for an active sound modulation device. Since the speaker diaphragm is injection molded integrally with one of the housing shells of the filter housing, the manufacturing cost is reduced, while at the same time a compact design can be realized.
  • the actuator may comprise an electromagnetic coil which cooperates with a soft-magnetic armature secured to the loudspeaker diaphragm.
  • the loudspeaker diaphragm may have an armature receptacle integrally molded therewith for fixing the armature.
  • the degree of integration can be further increased according to an advantageous embodiment, if at least one of the housing shells is injection-molded integrally with a microphone holder, with the aid of a microphone on the respective housing shell can be fixed.
  • at least one of the housing shells may be injection molded integrally with a housing part of a microphone.
  • Such a microphone can in particular form part of a sound modulation device.
  • FIG. 1 is an internal combustion engine 1, which is arranged in particular in a motor vehicle not shown here, the input side to a fresh air system 2 and the output connected to an exhaust system 3.
  • the fresh air system 2 may comprise an air filter 4 in the usual way.
  • a sound modulation device 5 may be provided. This includes, for example, a control unit 6, at least one loudspeaker 7 and at least one microphone 8.
  • the speaker 7 is attached to a housing 9 of the air filter 4, in which a filter element 10 is arranged.
  • the microphone 8 and the control unit 6 are attached to the filter housing 9.
  • the sound modulation device 5 works with anti-sound and can realize in particular an active sound attenuation. Likewise, a desired sound can be specifically generated with the aid of the sound modulation device 5, so-called sound design.
  • the filter housing 9 has at least two injection-molded housing shells 11, 12 made of plastic. These are fastened to each other in a conventional manner, for example via complementary flanges 13 and suitable fastening elements 14. At least one filter element 10 is arranged in the filter housing 9. This separates in the filter housing 9 a clean room 15 from a raw space 16.
  • the housing 9 has an inlet port 17, via which according to an arrow 18 unfiltered air enters the crude space 16.
  • the housing 9 has an outlet port 19, via the filtered according to an arrow 20 filtered air from the clean room 15 exits.
  • the filter element 10 can be traversed in the usual way of air, being impermeable to contamination of the air.
  • the speaker 7 and the air filter 4 form an integral unit.
  • This is a Speaker housing 21 attached to the filter housing 9.
  • the loudspeaker 7 has a loudspeaker diaphragm 22 and an electromagnetic actuator 23 for actuating the diaphragm 22.
  • the actuator 23 is arranged in the loudspeaker housing 21.
  • the membrane 22 is connected to one of the housing shells 11, 12 here with the designated 12, in the Fig. 2 to 4 each illustrated lower housing shell 12 integrally injection molded.
  • the loudspeaker diaphragm 22 thus forms together with the corresponding housing shell 12 a one-piece integral component.
  • the speaker housing 21 is attached to the housing shell 12 which has the speaker membrane 22 integrally.
  • the loudspeaker diaphragm 22 forms a bottom or at least a wall section of the respective housing shell 12.
  • the loudspeaker diaphragm 22 is preferably positioned within the filter housing 9 in such a way that it delimits the bluff chamber 16.
  • the speaker diaphragm 22 may also be arranged so as to limit the clean room 15.
  • the raw-side arrangement has the advantage that a damping effect of the filter element 10 can be used for coming from the internal combustion engine 1 noise.
  • the housing shell 12 and the Lautscherermembram 22 may be made of the same plastic.
  • a corresponding shape and / or a corresponding wall thickness can the desired mobility realize the speaker diaphragm 22, while the housing shell 12, moreover, has the required strength. In particular, this allows the housing shell 12 to be produced with the loudspeaker membrane 22 with the injection molding technique with one shot.
  • the housing shell 12 and the loudspeaker diaphragm 22 by means of two-shot technique, wherein in a first shot the one component and in a later second shot the other component are injected, this can be done in the same tool or performed in different tools .
  • Different types of plastics can also be used in the two-copy technique, so that it is possible, in particular, to choose a plastic with a higher rigidity for the housing shell 12 and to choose a plastic with a higher elasticity for the loudspeaker diaphragm 22.
  • the actuator 23 preferably has at least one electromagnetic coil 24, which is fixed by means of a corresponding coil receptacle 25 on the speaker housing 21.
  • the actuator 23 also includes a soft magnetic armature 26, which is fixed to the membrane 22 with a suitable anchor receptacle 27.
  • the anchor receptacle 27 is integrally injection molded with the speaker diaphragm 22.
  • the anchor receptacle 27 may also be glued or welded to the membrane 22.
  • a double arrow 28 symbolizes the vibration excitation of the diaphragm 22 by the actuator 23.
  • the speaker housing 21 may, for example, be welded to the respective housing shell 12. Likewise, a bond can be provided. Alternatively, detachable connecting elements, not shown here, can also be provided, with the aid of which the loudspeaker housing 21 is fastened to the respective housing shell 12. This may in particular be in the clip elements or the like. A corresponding attachment zone is designated 29 in the figures.
  • Fig. 2 to 4 show that for the air filter 4 basically any designs can be realized.
  • plate-shaped filter elements 10 are used.
  • ring-shaped filter elements 10 can also be used.
  • Corresponding Fig. 4 may be attached to one of the housing shells 11, 12, a microphone 8.
  • the microphone 8 is attached to the housing shell 12, which is made integral with the membrane 22. It is also possible to grow the microphone 8 on the other housing shell 11.
  • several microphones 8 may be provided.
  • a control unit 6 can be attached to one of the housing shells 11, 12. In the example, the control unit 6 is attached to the other housing shell 11. Likewise, the control unit 6 can be attached to the equipped with the membrane 22 housing shell 12.
  • the respective housing shell 11, 12 may be injection molded integrally with a housing part 30 of the microphone 8.
  • the housing shell 11, 12 forms in the example a bottom and a lateral enclosure of a microphone housing, which is closable with a separate cover 31.
  • the microphone 8 comprises a sound sensor 32, which is connected via a signal line 33 to the control unit 6.
  • FIG. 5b The embodiment shown differs from that in FIG Fig. 5a shown embodiment in that the housing shell 11, 12 includes an opening 34 through which the sound sensor 32 - depending on the arrangement of the microphone 8 - communicating with the raw space 16 or with the clean room 15 of the filter housing 9 communicating.
  • a microphone holder 35 is integrally formed on the respective housing shell 11, 12.
  • the microphone 8 can be used.
  • the microphone holder 35 serve as an integrated microphone housing which can be closed with a corresponding cover.
  • an opening 34 may be provided here as well.
  • Fig. 5d shows an embodiment, which differs from the in Fig. 5c shown embodiment differs in that the receptacle 35 is bordered by a collar 36 which can be used to fix the lid 31.
  • Fig. 5e shows a variant in which the microphone 8 is arranged in the interior of the filter housing 9, wherein in particular the lid 31 is mounted from the inside.
  • control device 6 can also be integrated at least partially structurally into the filter housing 9 in a manner corresponding to the microphone 8.
  • a controller housing 37 may be injection molded integrally with one of the housing shells 11, 12 and receive the actual controller 38.
  • the control unit 6 is connected via a control line 39 to the actuator 23.
  • the lines 33, 39 shown here externally may in an advantageous embodiment also run directly on or in the housing shells 11, 12. Likewise, the lines 33, 39 may be routed within the housing 9.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Analytical Chemistry (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
EP20090162269 2008-06-25 2009-06-09 Filtre d'air et dispositif d'air frais équipé de celui-ci Not-in-force EP2138700B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102008030197A DE102008030197A1 (de) 2008-06-25 2008-06-25 Luftfilter und damit ausgestattete Frischluftanlage

Publications (3)

Publication Number Publication Date
EP2138700A2 true EP2138700A2 (fr) 2009-12-30
EP2138700A3 EP2138700A3 (fr) 2013-01-16
EP2138700B1 EP2138700B1 (fr) 2014-10-08

Family

ID=41110671

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20090162269 Not-in-force EP2138700B1 (fr) 2008-06-25 2009-06-09 Filtre d'air et dispositif d'air frais équipé de celui-ci

Country Status (2)

Country Link
EP (1) EP2138700B1 (fr)
DE (1) DE102008030197A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2617956A1 (fr) * 2012-01-19 2013-07-24 Eberspächer Exhaust Technology GmbH & Co. KG Dispositif de gaz d'échappement pour un moteur à combustion interne
US20150109115A1 (en) * 2013-10-19 2015-04-23 GM Global Technology Operations LLC Acoustic warning device and motor vehicle with an acoustic warning device
US20210231084A1 (en) * 2018-06-07 2021-07-29 Propulsa Innovations Inc. Air filtration system for combustion engine and combustion engine including same
EP4234065A1 (fr) * 2022-02-24 2023-08-30 MANN+HUMMEL GmbH Boîtier pour un élément de filtre et système de filtre comprenant un boîtier

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012020780B4 (de) * 2012-10-23 2022-02-17 Audi Ag Kraftfahrzeug
JP6059524B2 (ja) * 2012-12-13 2017-01-11 株式会社マーレ フィルターシステムズ ハイブリッド車両の走行音制御装置
DE102015106000A1 (de) * 2015-04-20 2016-10-20 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Schallgenerator für ein Kraftfahrzeug
DE102015212041A1 (de) 2015-06-29 2016-12-29 Mahle International Gmbh Gasführende Einrichtung
DE102016004152B4 (de) 2016-04-06 2023-03-23 Audi Ag Kompakte Lautsprecheranordnung für ein Fahrzeug

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001016477A1 (fr) 1999-08-27 2001-03-08 Filterwerk Mann + Hummel Gmbh Filtre a air
EP1111228A2 (fr) 1999-12-24 2001-06-27 MAHLE Filtersysteme GmbH Filtre en particulier filtre d'admission
US20010049999A1 (en) 2000-06-13 2001-12-13 Siemens Automotive Corporation Integrated active noise control with self-cleaning filter apparatus

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08270518A (ja) * 1995-03-31 1996-10-15 Tsuchiya Mfg Co Ltd アクティブノイズコントロール装置
JPH094531A (ja) * 1995-06-20 1997-01-07 Unisia Jecs Corp 内燃機関用アクティブ騒音制御装置
JPH09126076A (ja) * 1995-10-31 1997-05-13 Tenetsukusu:Kk 能動型消音装置のスピーカ取付構造
DE19915592A1 (de) * 1999-04-07 2000-10-19 Porsche Ag Einlaßorgan für eine Brennkraftmaschine
DE10021031A1 (de) * 2000-05-02 2001-11-08 Mann & Hummel Filter Leitungssystem mit elektromechanischem Wandler zur Erzeugung eines Korrekturgeräusches

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001016477A1 (fr) 1999-08-27 2001-03-08 Filterwerk Mann + Hummel Gmbh Filtre a air
EP1111228A2 (fr) 1999-12-24 2001-06-27 MAHLE Filtersysteme GmbH Filtre en particulier filtre d'admission
US20010049999A1 (en) 2000-06-13 2001-12-13 Siemens Automotive Corporation Integrated active noise control with self-cleaning filter apparatus

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2617956A1 (fr) * 2012-01-19 2013-07-24 Eberspächer Exhaust Technology GmbH & Co. KG Dispositif de gaz d'échappement pour un moteur à combustion interne
US9284868B2 (en) 2012-01-19 2016-03-15 Eberspächer Exhaust Technology GmbH & Co. KG Exhaust device for an internal combustion engine
US20150109115A1 (en) * 2013-10-19 2015-04-23 GM Global Technology Operations LLC Acoustic warning device and motor vehicle with an acoustic warning device
US20210231084A1 (en) * 2018-06-07 2021-07-29 Propulsa Innovations Inc. Air filtration system for combustion engine and combustion engine including same
EP3801829A4 (fr) * 2018-06-07 2021-10-20 Propulsa Innovations Inc. Système de filtration d'air pour moteur à combustion et moteur à combustion le comprenant
US12044197B2 (en) * 2018-06-07 2024-07-23 Propulsa Innovations Inc. Air filtration system for combustion engine and combustion engine including same
EP4234065A1 (fr) * 2022-02-24 2023-08-30 MANN+HUMMEL GmbH Boîtier pour un élément de filtre et système de filtre comprenant un boîtier

Also Published As

Publication number Publication date
EP2138700A3 (fr) 2013-01-16
EP2138700B1 (fr) 2014-10-08
DE102008030197A1 (de) 2009-12-31

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