FR2457399B1 - - Google Patents

Info

Publication number
FR2457399B1
FR2457399B1 FR7913069A FR7913069A FR2457399B1 FR 2457399 B1 FR2457399 B1 FR 2457399B1 FR 7913069 A FR7913069 A FR 7913069A FR 7913069 A FR7913069 A FR 7913069A FR 2457399 B1 FR2457399 B1 FR 2457399B1
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
FR7913069A
Other languages
French (fr)
Other versions
FR2457399A1 (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.)
Automobiles Citroen SA
Original Assignee
Automobiles Citroen SA
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 Automobiles Citroen SA filed Critical Automobiles Citroen SA
Priority to FR7913069A priority Critical patent/FR2457399A1/fr
Publication of FR2457399A1 publication Critical patent/FR2457399A1/fr
Application granted granted Critical
Publication of FR2457399B1 publication Critical patent/FR2457399B1/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
    • 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
    • F04D29/664—Sound attenuation by means of sound absorbing material
    • 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
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
    • F04D29/4213—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps suction ports

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
FR7913069A 1979-05-23 1979-05-23 Silencieux de ventilateur Granted FR2457399A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7913069A FR2457399A1 (fr) 1979-05-23 1979-05-23 Silencieux de ventilateur

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7913069A FR2457399A1 (fr) 1979-05-23 1979-05-23 Silencieux de ventilateur

Publications (2)

Publication Number Publication Date
FR2457399A1 FR2457399A1 (fr) 1980-12-19
FR2457399B1 true FR2457399B1 (OSRAM) 1983-10-21

Family

ID=9225752

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7913069A Granted FR2457399A1 (fr) 1979-05-23 1979-05-23 Silencieux de ventilateur

Country Status (1)

Country Link
FR (1) FR2457399A1 (OSRAM)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3307284C2 (de) * 1983-03-02 1985-11-14 Hans Dr.h.c. 3559 Battenberg Vießmann Gebläsebrenner für Heizkesseltüren
DE19934586A1 (de) * 1999-07-23 2001-01-25 Behr Gmbh & Co Gebläse

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB408325A (en) * 1932-10-08 1934-04-09 Robert Ernest Workman Improvements in or relating to rotary fans
US2267275A (en) * 1939-11-25 1941-12-23 Gen Machine Company Inc Fan muffler
US3120876A (en) * 1961-05-03 1964-02-11 Edward F Lirette Air intake silencer
US3540547A (en) * 1968-12-31 1970-11-17 Charles Waddell Coward Jr Acoustical systems for air moving devices
US3748997A (en) * 1972-04-06 1973-07-31 Tempmaster Corp Acoustical insulated fan and temperature conditioning penthouse unit
GB1529946A (en) * 1976-03-03 1978-10-25 Fans & Blowers Ltd Silencers for centrifugal blowers

Also Published As

Publication number Publication date
FR2457399A1 (fr) 1980-12-19

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Legal Events

Date Code Title Description
CA Change of address
ST Notification of lapse