FR1453927A - Dual circuit ventilation fans upgrades - Google Patents

Dual circuit ventilation fans upgrades

Info

Publication number
FR1453927A
FR1453927A FR46209A FR69046209A FR1453927A FR 1453927 A FR1453927 A FR 1453927A FR 46209 A FR46209 A FR 46209A FR 69046209 A FR69046209 A FR 69046209A FR 1453927 A FR1453927 A FR 1453927A
Authority
FR
France
Prior art keywords
upgrades
ventilation fans
dual circuit
circuit ventilation
dual
Prior art date
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
FR46209A
Other languages
French (fr)
Inventor
Pierre Grandvuinet
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.)
GRANDVUINET ETS
Original Assignee
GRANDVUINET ETS
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 GRANDVUINET ETS filed Critical GRANDVUINET ETS
Priority to FR46209A priority Critical patent/FR1453927A/en
Application granted granted Critical
Publication of FR1453927A publication Critical patent/FR1453927A/en
Expired 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
    • F04D25/00—Pumping installations or systems
    • F04D25/16—Combinations of two or more pumps ; Producing two or more separate gas flows
    • F04D25/166—Combinations of two or more pumps ; Producing two or more separate gas flows using fans

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
FR46209A 1965-07-09 1965-07-09 Dual circuit ventilation fans upgrades Expired FR1453927A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR46209A FR1453927A (en) 1965-07-09 1965-07-09 Dual circuit ventilation fans upgrades

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR46209A FR1453927A (en) 1965-07-09 1965-07-09 Dual circuit ventilation fans upgrades

Publications (1)

Publication Number Publication Date
FR1453927A true FR1453927A (en) 1966-09-30

Family

ID=1580279

Family Applications (1)

Application Number Title Priority Date Filing Date
FR46209A Expired FR1453927A (en) 1965-07-09 1965-07-09 Dual circuit ventilation fans upgrades

Country Status (1)

Country Link
FR (1) FR1453927A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4213279A1 (en) * 1992-04-16 1993-10-21 Edgar Waitz Multistage axial flow compressor - has sequence of impeller crowns with one crown having opposite flow direction to adjacent crown
DE102004055600A1 (en) * 2004-11-18 2006-05-24 Robert Wild Turbine ventilator for computer has special fan wheel rotating in form of a screw to transport gas or liquid in either direction
DE102008031084A1 (en) * 2008-07-01 2010-01-07 Horst Hinterneder Axial blower for use in air-to-air heat exchanger to ventilate and exhaust air in room of building, has two blower wheels provided on output shaft of driving motor, where one of wheels is provided as outer ring around other wheel
EP3213005A4 (en) * 2014-10-27 2018-07-25 Gagné-Marcotte, Gabriel Push-pull counter flow heat exchanger

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4213279A1 (en) * 1992-04-16 1993-10-21 Edgar Waitz Multistage axial flow compressor - has sequence of impeller crowns with one crown having opposite flow direction to adjacent crown
DE102004055600A1 (en) * 2004-11-18 2006-05-24 Robert Wild Turbine ventilator for computer has special fan wheel rotating in form of a screw to transport gas or liquid in either direction
DE102008031084A1 (en) * 2008-07-01 2010-01-07 Horst Hinterneder Axial blower for use in air-to-air heat exchanger to ventilate and exhaust air in room of building, has two blower wheels provided on output shaft of driving motor, where one of wheels is provided as outer ring around other wheel
DE102008031084B4 (en) * 2008-07-01 2012-10-25 Horst Hinterneder axial fan
EP3213005A4 (en) * 2014-10-27 2018-07-25 Gagné-Marcotte, Gabriel Push-pull counter flow heat exchanger

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