FR2716289B3 - Soundproof cover, in particular to reduce the noise level of the valve cover. - Google Patents

Soundproof cover, in particular to reduce the noise level of the valve cover.

Info

Publication number
FR2716289B3
FR2716289B3 FR9500313A FR9500313A FR2716289B3 FR 2716289 B3 FR2716289 B3 FR 2716289B3 FR 9500313 A FR9500313 A FR 9500313A FR 9500313 A FR9500313 A FR 9500313A FR 2716289 B3 FR2716289 B3 FR 2716289B3
Authority
FR
France
Prior art keywords
cover
reduce
noise level
soundproof
valve cover
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 - Lifetime
Application number
FR9500313A
Other languages
French (fr)
Other versions
FR2716289A3 (en
Inventor
Alf Loeffler
Peter Baur
Winfried Keiper
Harald Kazmierczak
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch 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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of FR2716289A3 publication Critical patent/FR2716289A3/en
Application granted granted Critical
Publication of FR2716289B3 publication Critical patent/FR2716289B3/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • G10K11/172—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using resonance effects
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B77/00—Component parts, details or accessories, not otherwise provided for
    • F02B77/11—Thermal or acoustic insulation
    • F02B77/13—Acoustic insulation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F7/00—Casings, e.g. crankcases or frames
    • F02F7/006—Camshaft or pushrod housings

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Multimedia (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)
  • Professional, Industrial, Or Sporting Protective Garments (AREA)
  • Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)
  • Mechanical Pencils And Projecting And Retracting Systems Therefor, And Multi-System Writing Instruments (AREA)
  • Body Structure For Vehicles (AREA)
  • Small-Scale Networks (AREA)
FR9500313A 1994-02-12 1995-01-12 Soundproof cover, in particular to reduce the noise level of the valve cover. Expired - Lifetime FR2716289B3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19944404502 DE4404502C2 (en) 1994-02-12 1994-02-12 Sound absorbing cover

Publications (2)

Publication Number Publication Date
FR2716289A3 FR2716289A3 (en) 1995-08-18
FR2716289B3 true FR2716289B3 (en) 1996-01-05

Family

ID=6510108

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9500313A Expired - Lifetime FR2716289B3 (en) 1994-02-12 1995-01-12 Soundproof cover, in particular to reduce the noise level of the valve cover.

Country Status (4)

Country Link
AT (1) AT404643B (en)
DE (1) DE4404502C2 (en)
FR (1) FR2716289B3 (en)
IT (2) IT236636Y1 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH690143A5 (en) * 1995-01-27 2000-05-15 Rieter Automotive Int Ag Lambda / 4 sound absorbers.
DE19622769A1 (en) * 1996-06-07 1997-12-11 Bayerische Motoren Werke Ag Drive unit for motor vehicles, especially cars
JP2001507308A (en) * 1997-04-11 2001-06-05 リーター アウトモティーフェ（インターナチオナール）アクチェンゲゼルシャフト Vehicle parts with integrated λ / 4 absorber
DE29712278U1 (en) * 1997-07-11 1998-11-05 M. Faist GmbH & Co KG, 86381 Krumbach Underbody paneling
DE19804567C2 (en) * 1998-02-05 2003-12-11 Woco Franz Josef Wolf & Co Gmbh Surface absorber for sound waves and use
DE19914934C2 (en) * 1999-04-01 2002-02-28 Man Nutzfahrzeuge Ag Soundproof machine housing
DE10048755C1 (en) * 2000-09-29 2002-05-23 Basf Ag Noise-reduced devices
DE102007046204B4 (en) * 2007-09-27 2015-04-02 Audi Ag Gas compressor of an internal combustion engine
DE102016015796B4 (en) 2016-12-15 2023-02-23 Deutz Aktiengesellschaft internal combustion engine
JP2018178831A (en) * 2017-04-11 2018-11-15 トヨタ自動車株式会社 Cylinder head cover

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT325897B (en) * 1971-09-28 1975-11-10 List Hans WALL-FORMING COMPONENT, IN PARTICULAR HOUSING OR HOUSING PART OF A MACHINE OR WORKING MACHINE
GB1490923A (en) * 1975-06-23 1977-11-02 Short Brothers & Harland Ltd Sound-absorbing structures
FR2462522A1 (en) * 1979-07-27 1981-02-13 Scal Gp Condit Aluminium Demountable noise barrier panel - uses lead membrane sandwiched between elastic sound absorbing material and is clad with aluminium sheet with reception face perforated
US4301890A (en) * 1979-12-06 1981-11-24 Lord Corporation Sound-absorbing panel
DE3734312A1 (en) * 1987-10-10 1989-04-27 Bosch Gmbh Robert SOUND-INSULATING COVER ELEMENT

Also Published As

Publication number Publication date
IT236636Y1 (en) 2000-08-17
ATA18395A (en) 1998-05-15
ITMI950068V0 (en) 1995-02-06
FR2716289A3 (en) 1995-08-18
ITRM950068V0 (en) 1995-03-31
DE4404502C2 (en) 2002-02-28
DE4404502A1 (en) 1995-08-17
ITMI950068U1 (en) 1996-08-06
ITRM950068U1 (en) 1996-10-01
IT235598Y1 (en) 2000-07-12
AT404643B (en) 1999-01-25

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