CH1237271A4 - - Google Patents

Info

Publication number
CH1237271A4
CH1237271A4 CH1237271A CH1237271A CH1237271A4 CH 1237271 A4 CH1237271 A4 CH 1237271A4 CH 1237271 A CH1237271 A CH 1237271A CH 1237271 A CH1237271 A CH 1237271A CH 1237271 A4 CH1237271 A4 CH 1237271A4
Authority
CH
Switzerland
Application number
CH1237271A
Other versions
CH529977A (de
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 filed Critical
Publication of CH1237271A4 publication Critical patent/CH1237271A4/xx
Publication of CH529977A publication Critical patent/CH529977A/de

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/24—Means for preventing or suppressing noise
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
    • F04D17/02—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps having non-centrifugal stages, e.g. centripetal
    • F04D17/04—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps having non-centrifugal stages, e.g. centripetal of transverse-flow type
    • 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
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F7/00—Ventilation
    • F24F7/007—Ventilation with forced flow
    • F24F7/013—Ventilation with forced flow using wall or window fans, displacing air through the wall or window
    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C23/00—Clocks with attached or built-in means operating any device at preselected times or after preselected time-intervals
    • G04C23/14—Mechanisms continuously running to relate the operation(s) to the time of day
    • G04C23/18—Mechanisms continuously running to relate the operation(s) to the time of day for operating one device at a number of different times
    • G04C23/20—Mechanisms continuously running to relate the operation(s) to the time of day for operating one device at a number of different times with contacts operated, or formed by clock hands or elements of similar form
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/24—Means for preventing or suppressing noise
    • F24F2013/242—Sound-absorbing material

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
CH1237271A 1970-09-16 1971-08-24 Schalldämpfvorrichtung für Raumlüfter CH529977A (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19702045718 DE2045718A1 (is") 1970-09-16 1970-09-16

Publications (2)

Publication Number Publication Date
CH1237271A4 true CH1237271A4 (is") 1972-12-15
CH529977A CH529977A (de) 1972-12-15

Family

ID=5782557

Family Applications (1)

Application Number Title Priority Date Filing Date
CH1237271A CH529977A (de) 1970-09-16 1971-08-24 Schalldämpfvorrichtung für Raumlüfter

Country Status (3)

Country Link
CH (1) CH529977A (is")
DE (1) DE2045718A1 (is")
FR (1) FR2107231A5 (is")

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2288949A1 (fr) * 1974-10-24 1976-05-21 Eberspaecher J Sas d'amenee d'air frais pour l'aeration des locaux
DE2546113C2 (de) * 1975-10-15 1989-05-18 FSL Fenster-System Lüftung GmbH & Co Vertriebs KG, 6800 Mannheim Vorrichtung zur Belüftung von Räumen mittels eines Gebläses
DE2942482C2 (de) * 1979-10-20 1982-02-18 Heinz Georg 3626 Hünibach-Thun Baus Lüftungseinrichtung
DE3112591C2 (de) * 1981-03-30 1983-12-29 Nixdorf Computer Ag, 4790 Paderborn Schallisolierendes geschlossenes Gerätegehäuse
FR3124770B1 (fr) 2021-07-05 2025-04-25 Psa Automobiles Sa Ensemble de fixation

Also Published As

Publication number Publication date
DE2045718A1 (is") 1972-03-23
FR2107231A5 (is") 1972-05-05
CH529977A (de) 1972-12-15

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Legal Events

Date Code Title Description
PL Patent ceased