FR2311203B3 - - Google Patents

Info

Publication number
FR2311203B3
FR2311203B3 FR7614096A FR7614096A FR2311203B3 FR 2311203 B3 FR2311203 B3 FR 2311203B3 FR 7614096 A FR7614096 A FR 7614096A FR 7614096 A FR7614096 A FR 7614096A FR 2311203 B3 FR2311203 B3 FR 2311203B3
Authority
FR
France
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
Application number
FR7614096A
Other languages
French (fr)
Other versions
FR2311203A1 (fr
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of FR2311203A1 publication Critical patent/FR2311203A1/fr
Application granted granted Critical
Publication of FR2311203B3 publication Critical patent/FR2311203B3/fr
Granted legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D19/00—Axial-flow pumps
    • F04D19/02—Multi-stage pumps
    • F04D19/024—Multi-stage pumps with contrarotating parts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
    • F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
    • F04D29/663—Sound attenuation
    • F04D29/665—Sound attenuation by means of resonance chambers or interference

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
FR7614096A 1975-05-14 1976-05-11 Ventilateur axial a amortissement du son Granted FR2311203A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19752521416 DE2521416A1 (de) 1975-05-14 1975-05-14 Schallgedaempfter axialventilator

Publications (2)

Publication Number Publication Date
FR2311203A1 FR2311203A1 (fr) 1976-12-10
FR2311203B3 true FR2311203B3 (forum.php) 1979-02-02

Family

ID=5946528

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7614096A Granted FR2311203A1 (fr) 1975-05-14 1976-05-11 Ventilateur axial a amortissement du son

Country Status (4)

Country Link
DE (1) DE2521416A1 (forum.php)
FR (1) FR2311203A1 (forum.php)
GB (1) GB1511625A (forum.php)
IT (1) IT1060582B (forum.php)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ZA783845B (en) * 1977-07-13 1979-07-25 Carrier Corp Pressure variation absorber
US5299634A (en) * 1991-09-26 1994-04-05 Mitsubishi Denki Kabushiki Kaisha Indoor unit of a ventilation system, ventilation and air conditioner
JP3140898B2 (ja) * 1993-12-02 2001-03-05 三菱電機株式会社 送風装置及び該装置の吸込パネル並びに該装置の整流ガイド
GB2330624A (en) * 1997-10-23 1999-04-28 Wang Samw Hong Jen Fan device with noise reduction
US6550574B2 (en) * 2000-12-21 2003-04-22 Dresser-Rand Company Acoustic liner and a fluid pressurizing device and method utilizing same
JP4088155B2 (ja) * 2000-12-21 2008-05-21 ドレッサー ランド カンパニー ２層音響ライナーおよび流体圧縮装置およびその使用方法
US6918740B2 (en) 2003-01-28 2005-07-19 Dresser-Rand Company Gas compression apparatus and method with noise attenuation
DE102004026428A1 (de) * 2004-05-29 2005-12-15 Kapolnek Gmbh Lüfter, insbesondere in Straßentunneln
ES2394332B1 (es) * 2012-08-02 2013-09-12 Soler & Palau Res Sl Caja de ventilacion
JP6820755B2 (ja) * 2017-01-23 2021-01-27 三菱電機株式会社 送風装置
DE202019107056U1 (de) * 2019-12-17 2021-03-18 Systemair GmbH Schallgedämmte Ventilatoranordnung
CN116517890A (zh) * 2023-06-27 2023-08-01 平安电气股份有限公司 一种采用真空组合式消声结构的通风机

Also Published As

Publication number Publication date
GB1511625A (en) 1978-05-24
DE2521416A1 (de) 1976-11-25
IT1060582B (it) 1982-08-20
FR2311203A1 (fr) 1976-12-10

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Legal Events

Date Code Title Description
ST Notification of lapse