ES484659A1 - Centrifugal fan for ventilator - has plastics blades perpendicular to backplate and lying obliquely w.r.t. radial lines - Google Patents

Centrifugal fan for ventilator - has plastics blades perpendicular to backplate and lying obliquely w.r.t. radial lines

Info

Publication number
ES484659A1
ES484659A1 ES484659A ES484659A ES484659A1 ES 484659 A1 ES484659 A1 ES 484659A1 ES 484659 A ES484659 A ES 484659A ES 484659 A ES484659 A ES 484659A ES 484659 A1 ES484659 A1 ES 484659A1
Authority
ES
Spain
Prior art keywords
backplate
blades
plastics
centrifugal fan
radial lines
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
ES484659A
Other languages
Spanish (es)
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.)
Elektrobau Mulfingen and Co EBM GmbH
Original Assignee
Elektrobau Mulfingen and Co EBM GmbH
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 Elektrobau Mulfingen and Co EBM GmbH filed Critical Elektrobau Mulfingen and Co EBM GmbH
Publication of ES484659A1 publication Critical patent/ES484659A1/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
    • F04D29/00—Details, component parts, or accessories
    • F04D29/26—Rotors specially for elastic fluids
    • F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
    • F04D29/281—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for fans or blowers
    • F04D29/282—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for fans or blowers the leading edge of each vane being substantially parallel to the rotation axis

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

The centrifugal fan has a metal back plate (2) which supports plastics blades (1) near the outer edge. These plastics blades are moulded integrally with the curved shroud (8) and the shroud and blade assembly is attached to the back plate (2) by welding, or riveting or with an adhesive. The blades are arranged to lie obliquely with respect to radial lines and are curved with convex outer surfaces and concave inner surfaces. The blades are also arranged so that they are perpendicular to the backplate (2). This design of fan with plastics blades reduces the noise when operating.
ES484659A 1979-05-16 1979-10-02 Centrifugal fan for ventilator - has plastics blades perpendicular to backplate and lying obliquely w.r.t. radial lines Expired ES484659A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19792919843 DE2919843A1 (en) 1979-05-16 1979-05-16 RADIAL ALLOY WHEEL

Publications (1)

Publication Number Publication Date
ES484659A1 true ES484659A1 (en) 1980-06-16

Family

ID=6070910

Family Applications (1)

Application Number Title Priority Date Filing Date
ES484659A Expired ES484659A1 (en) 1979-05-16 1979-10-02 Centrifugal fan for ventilator - has plastics blades perpendicular to backplate and lying obliquely w.r.t. radial lines

Country Status (5)

Country Link
BE (1) BE880209A (en)
DE (1) DE2919843A1 (en)
ES (1) ES484659A1 (en)
FR (1) FR2456864A1 (en)
IT (1) IT1126159B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6024543A (en) * 1997-11-07 2000-02-15 Zero Corporation Blower wheel having interior motor cooling ribs
JP3279258B2 (en) * 1997-11-27 2002-04-30 株式会社デンソー AC generator for vehicles
DE20108218U1 (en) 2001-05-16 2002-09-26 Ebm Werke Gmbh & Co Kg Fan wheel and fan, in particular radial fan
DE202007016575U1 (en) 2007-11-26 2009-04-02 Wistro Elektro-Mechanik Gmbh radial fans

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE7609772L (en) * 1976-09-03 1978-03-04 Svenska Flaektfabriken Ab RADIAL FLEX RANGE

Also Published As

Publication number Publication date
IT7983488A0 (en) 1979-11-13
DE2919843A1 (en) 1980-11-20
BE880209A (en) 1980-03-17
FR2456864A1 (en) 1980-12-12
IT1126159B (en) 1986-05-14
FR2456864B1 (en) 1984-02-24

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