IT958228B - IMPROVEMENT IN CENTRIFUGAL FANS - Google Patents

IMPROVEMENT IN CENTRIFUGAL FANS

Info

Publication number
IT958228B
IT958228B IT5071772A IT5071772A IT958228B IT 958228 B IT958228 B IT 958228B IT 5071772 A IT5071772 A IT 5071772A IT 5071772 A IT5071772 A IT 5071772A IT 958228 B IT958228 B IT 958228B
Authority
IT
Italy
Prior art keywords
improvement
centrifugal fans
fans
centrifugal
Prior art date
Application number
IT5071772A
Other languages
Italian (it)
Original Assignee
Ilg Ind Inc
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 Ilg Ind Inc filed Critical Ilg Ind Inc
Application granted granted Critical
Publication of IT958228B publication Critical patent/IT958228B/en

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
    • F24F7/00—Ventilation
    • F24F7/02—Roof ventilation
    • F24F7/025—Roof ventilation with forced air circulation by means of a built-in ventilator
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
    • F04D25/12—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation the unit being adapted for mounting in apertures
    • F04D25/14—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation the unit being adapted for mounting in apertures and having shutters, e.g. automatically closed when not in use

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
IT5071772A 1971-06-15 1972-06-06 IMPROVEMENT IN CENTRIFUGAL FANS IT958228B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US15324771A 1971-06-15 1971-06-15

Publications (1)

Publication Number Publication Date
IT958228B true IT958228B (en) 1973-10-20

Family

ID=22546377

Family Applications (1)

Application Number Title Priority Date Filing Date
IT5071772A IT958228B (en) 1971-06-15 1972-06-06 IMPROVEMENT IN CENTRIFUGAL FANS

Country Status (6)

Country Link
AU (1) AU4295972A (en)
DE (1) DE2227937A1 (en)
FR (1) FR2142386A5 (en)
GB (1) GB1345465A (en)
IT (1) IT958228B (en)
NL (1) NL7208183A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5161941A (en) * 1990-08-28 1992-11-10 Sinko Kogyo, Co, Ltd. Actuator assembly for controlling inlet air flow to centrifugal fans
AU2015201503B1 (en) * 2015-03-23 2016-04-07 Consolidated Ventilation Equipment Pty Rotary vent

Also Published As

Publication number Publication date
DE2227937A1 (en) 1972-12-21
NL7208183A (en) 1972-12-19
FR2142386A5 (en) 1973-01-26
GB1345465A (en) 1974-01-30
AU4295972A (en) 1973-12-06

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