FR2449214B1 - Perfectionnement aux ventilateurs helicoides - Google Patents

Perfectionnement aux ventilateurs helicoides

Info

Publication number
FR2449214B1
FR2449214B1 FR7905095A FR7905095A FR2449214B1 FR 2449214 B1 FR2449214 B1 FR 2449214B1 FR 7905095 A FR7905095 A FR 7905095A FR 7905095 A FR7905095 A FR 7905095A FR 2449214 B1 FR2449214 B1 FR 2449214B1
Authority
FR
France
Prior art keywords
helicoid
fans
improvement
helicoid fans
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
FR7905095A
Other languages
English (en)
Other versions
FR2449214A1 (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.)
NEU SA
Original Assignee
NEU 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 NEU SA filed Critical NEU SA
Priority to FR7905095A priority Critical patent/FR2449214B1/fr
Publication of FR2449214A1 publication Critical patent/FR2449214A1/fr
Application granted granted Critical
Publication of FR2449214B1 publication Critical patent/FR2449214B1/fr
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
    • F04D29/00—Details, component parts, or accessories
    • F04D29/26—Rotors specially for elastic fluids
    • F04D29/32—Rotors specially for elastic fluids for axial flow pumps
    • F04D29/38—Blades
    • F04D29/388—Blades characterised by construction

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
FR7905095A 1979-02-19 1979-02-19 Perfectionnement aux ventilateurs helicoides Expired FR2449214B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7905095A FR2449214B1 (fr) 1979-02-19 1979-02-19 Perfectionnement aux ventilateurs helicoides

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7905095A FR2449214B1 (fr) 1979-02-19 1979-02-19 Perfectionnement aux ventilateurs helicoides

Publications (2)

Publication Number Publication Date
FR2449214A1 FR2449214A1 (fr) 1980-09-12
FR2449214B1 true FR2449214B1 (fr) 1986-06-20

Family

ID=9222527

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7905095A Expired FR2449214B1 (fr) 1979-02-19 1979-02-19 Perfectionnement aux ventilateurs helicoides

Country Status (1)

Country Link
FR (1) FR2449214B1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2872869A1 (fr) * 2004-07-07 2006-01-13 Antoine Olivier Fautrad Systeme de propulsion d'air et pale a evaporation

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1355427A (fr) * 1963-05-10 1964-03-13 Neu Sa Perfectionnement aux ventilateurs hélicoïdes
DE1926694C3 (de) * 1969-05-24 1979-09-06 Siemens Ag, 1000 Berlin Und 8000 Muenchen Lüfterflügel aus Polyurethan-Duromerschaum
DD137267B1 (de) * 1978-06-28 1980-06-25 Werner Harms Laufschaufeln aus plastwerkstoff und verfahren zu ihrer herstellung

Also Published As

Publication number Publication date
FR2449214A1 (fr) 1980-09-12

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Legal Events

Date Code Title Description
ST Notification of lapse