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 (en
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/en
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
FR7614096A 1975-05-14 1976-05-11 SOUND-DAMAGED AXIAL FAN Granted FR2311203A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19752521416 DE2521416A1 (en) 1975-05-14 1975-05-14 SILENT AXIAL FAN

Publications (2)

Publication Number Publication Date
FR2311203A1 FR2311203A1 (en) 1976-12-10
FR2311203B3 true FR2311203B3 (en) 1979-02-02

Family

ID=5946528

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7614096A Granted FR2311203A1 (en) 1975-05-14 1976-05-11 SOUND-DAMAGED AXIAL FAN

Country Status (4)

Country Link
DE (1) DE2521416A1 (en)
FR (1) FR2311203A1 (en)
GB (1) GB1511625A (en)
IT (1) IT1060582B (en)

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 (en) * 1993-12-02 2001-03-05 三菱電機株式会社 Blower, suction panel of the device, and rectifying guide of the device
GB2330624A (en) * 1997-10-23 1999-04-28 Wang Samw Hong Jen Fan device with noise reduction
CN1318710C (en) * 2000-12-21 2007-05-30 德雷瑟-兰德公司 Double layer acoustic liner and fluid pressurizing device and method utilizing same
US6550574B2 (en) * 2000-12-21 2003-04-22 Dresser-Rand Company Acoustic liner and a fluid pressurizing device and method utilizing same
US6918740B2 (en) 2003-01-28 2005-07-19 Dresser-Rand Company Gas compression apparatus and method with noise attenuation
DE102004026428A1 (en) * 2004-05-29 2005-12-15 Kapolnek Gmbh Exhauster for use in road tunnel, has ventilator stimulated by suction pipe in exhaust pipe and including conveying blades, where cross section at downstream of ventilator changes its shape from circular surface area into oval surface area
ES2394332B1 (en) * 2012-08-02 2013-09-12 Soler & Palau Res Sl VENTILATION BOX
JP6820755B2 (en) * 2017-01-23 2021-01-27 三菱電機株式会社 Blower
DE202019107056U1 (en) 2019-12-17 2021-03-18 Systemair GmbH Soundproof fan arrangement
CN116517890A (en) * 2023-06-27 2023-08-01 平安电气股份有限公司 Ventilator adopting vacuum combined silencing structure

Also Published As

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

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Legal Events

Date Code Title Description
ST Notification of lapse