CH322421A - Aspiratore elicoidale munito di dispositivo di chiusura del condotto di ventilazione - Google Patents

Aspiratore elicoidale munito di dispositivo di chiusura del condotto di ventilazione

Info

Publication number
CH322421A
CH322421A CH322421DA CH322421A CH 322421 A CH322421 A CH 322421A CH 322421D A CH322421D A CH 322421DA CH 322421 A CH322421 A CH 322421A
Authority
CH
Switzerland
Prior art keywords
closing
ventilation duct
axial fan
fan equipped
axial
Prior art date
Application number
Other languages
English (en)
Inventor
Arrigoni Luigi
Original Assignee
Marelli & C Spa Ercole
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 Marelli & C Spa Ercole filed Critical Marelli & C Spa Ercole
Publication of CH322421A publication Critical patent/CH322421A/it

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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
CH322421D 1954-07-08 1954-07-08 Aspiratore elicoidale munito di dispositivo di chiusura del condotto di ventilazione CH322421A (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH322421T 1954-07-08

Publications (1)

Publication Number Publication Date
CH322421A true CH322421A (it) 1957-06-15

Family

ID=4498774

Family Applications (1)

Application Number Title Priority Date Filing Date
CH322421D CH322421A (it) 1954-07-08 1954-07-08 Aspiratore elicoidale munito di dispositivo di chiusura del condotto di ventilazione

Country Status (1)

Country Link
CH (1) CH322421A (it)

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