FR2251718A1 - Bulldozer air intake noise reducer - has sound absorbing walls bent at right angles - Google Patents

Bulldozer air intake noise reducer - has sound absorbing walls bent at right angles

Info

Publication number
FR2251718A1
FR2251718A1 FR7418299A FR7418299A FR2251718A1 FR 2251718 A1 FR2251718 A1 FR 2251718A1 FR 7418299 A FR7418299 A FR 7418299A FR 7418299 A FR7418299 A FR 7418299A FR 2251718 A1 FR2251718 A1 FR 2251718A1
Authority
FR
France
Prior art keywords
air intake
sound absorbing
right angles
noise reducer
intake 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
FR7418299A
Other languages
English (en)
French (fr)
Other versions
FR2251718B1 (enrdf_load_stackoverflow
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.)
Komatsu Ltd
Original Assignee
Komatsu 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 Komatsu Ltd filed Critical Komatsu Ltd
Publication of FR2251718A1 publication Critical patent/FR2251718A1/fr
Application granted granted Critical
Publication of FR2251718B1 publication Critical patent/FR2251718B1/fr
Granted 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
    • F02M35/1211—Flow throttling or guiding by using inserts in the air intake flow path, e.g. baffles, throttles or orifices; Flow guides
    • 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
    • F02M35/1272—Intake silencers ; Sound modulation, transmission or amplification using absorbing, damping, insulating or reflecting materials, e.g. porous foams, fibres, rubbers, fabrics, coatings or membranes

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Exhaust Silencers (AREA)
  • Duct Arrangements (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
FR7418299A 1973-11-20 1974-05-27 Bulldozer air intake noise reducer - has sound absorbing walls bent at right angles Granted FR2251718A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13331973U JPS5077629U (enrdf_load_stackoverflow) 1973-11-20 1973-11-20

Publications (2)

Publication Number Publication Date
FR2251718A1 true FR2251718A1 (en) 1975-06-13
FR2251718B1 FR2251718B1 (enrdf_load_stackoverflow) 1980-11-28

Family

ID=15101900

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7418299A Granted FR2251718A1 (en) 1973-11-20 1974-05-27 Bulldozer air intake noise reducer - has sound absorbing walls bent at right angles

Country Status (3)

Country Link
JP (1) JPS5077629U (enrdf_load_stackoverflow)
DE (1) DE2424968A1 (enrdf_load_stackoverflow)
FR (1) FR2251718A1 (enrdf_load_stackoverflow)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5534251Y2 (enrdf_load_stackoverflow) * 1975-09-30 1980-08-14
JPS5534252Y2 (enrdf_load_stackoverflow) * 1975-09-30 1980-08-14
JPS52105311A (en) * 1976-03-01 1977-09-03 Hisao Suzuki Mufflers
DE2819657A1 (de) * 1978-05-05 1979-11-08 Linde Ag Schalldaemmeinrichtung und verfahren zu deren herstellung
DE3202078A1 (de) * 1982-01-23 1983-08-04 IT - Isoliertechnik und Schallschutz GmbH, 4830 Gütersloh Schalldaempfer-kulisse
JPS61250324A (ja) * 1985-04-27 1986-11-07 Toushiyou Eng Kk 騒音周波数対応型消音装置
US6688424B1 (en) 1997-10-24 2004-02-10 Komatsu Ltd. Noise absorbing device and device for taking air into engine room of a construction machine
DE102005020303A1 (de) * 2005-04-30 2006-11-09 Volkswagen Ag Eine die Geräuschemission vermidernde Leitung sowie ein Verbrennungsmotor mit einer solchen Leitung
CN110500182A (zh) * 2019-08-29 2019-11-26 重庆隆鑫通航发动机制造有限公司 发电机组

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4512294Y1 (enrdf_load_stackoverflow) * 1966-08-01 1970-05-29
DE1772549B2 (de) * 1968-05-31 1977-07-14 Fa ] Eberspacher, 7300 Esslingen Einrichtung zur schalldaempfenden verkleidung von schallquellen, vorzugsweise fuer ortsunabhaengige anlagen mit verbrennungsmotoren, bestehend aus einzelnen mit schallschluckstoff versehenen lamellen
JPS4937650B2 (enrdf_load_stackoverflow) * 1972-01-31 1974-10-11

Also Published As

Publication number Publication date
FR2251718B1 (enrdf_load_stackoverflow) 1980-11-28
DE2424968A1 (de) 1975-05-28
JPS5077629U (enrdf_load_stackoverflow) 1975-07-05

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Legal Events

Date Code Title Description
ST Notification of lapse