EP1457683A2 - Radiallüfterrad, insbesondere aus Kunststoff - Google Patents
Radiallüfterrad, insbesondere aus Kunststoff Download PDFInfo
- Publication number
- EP1457683A2 EP1457683A2 EP04005006A EP04005006A EP1457683A2 EP 1457683 A2 EP1457683 A2 EP 1457683A2 EP 04005006 A EP04005006 A EP 04005006A EP 04005006 A EP04005006 A EP 04005006A EP 1457683 A2 EP1457683 A2 EP 1457683A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- blades
- radial fan
- plastic
- webs
- walls
- 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.)
- Granted
Links
Images
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
- F04D29/02—Selection of particular materials
- F04D29/023—Selection of particular materials especially adapted for elastic fluid pumps
-
- 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
-
- 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
- F04D29/30—Vanes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2300/00—Materials; Properties thereof
- F05D2300/40—Organic materials
- F05D2300/43—Synthetic polymers, e.g. plastics; Rubber
Definitions
- the invention relates to a radial fan, in particular made of plastic and in particular for a motor vehicle, according to the preamble of the claim 1.
- Conventional radial fan wheels are usually made of a metal sheet or made of plastic. Due to occurring relatively large Centrifugal forces of high speeds made deformations of the blades, so that it is in the area of attachment points between each blade and the two rings come to high voltages. This is special problematic with plastic radial fan wheels.
- a radial fan in particular for a motor vehicle, provided with a plurality of blades arranged between two rings, which are formed as hollow profiles, wherein between the two Walls of the blades webs are provided.
- the webs are arranged perpendicular to the wall of the blades, so that an optimal stiffening takes place.
- the distance between two webs is one to three times, preferably about twice, the distance between the opposite walls of the blades. This results in optimum stiffness with minimal weight.
- the thickness of the webs is approximately equal to or slightly larger than that Thickness of the walls of the blades. It is preferred at the transition from one Wall to a bridge provided a radius, which is preferably slightly smaller than the thickness of the bridge. The radius reduces the risk of cracking as a result of a more even stress distribution in the critical Areas.
- An inventive plastic radial fan 1 for engine cooling of a motor vehicle has six arranged between two parallel rings 2 Shovels 3, which are interconnected via connection points 4 are.
- the outer shape of the blades 3 corresponds to that of conventional Shovels, i. the blades 3 are parallel in the plane the rings 2 a slightly curved profile and in the axial direction, vertical to the rings 2 running walls.
- the blades 3 are the blades 3, as best seen in Fig. 3, as Hollow profiles formed with a plurality of continuous webs 5.
- the webs 5 are each substantially perpendicular to the corresponding Walls of the blades 3 arranged.
- the thickness DS of the webs 5 is according to the present embodiment slightly larger than the thickness DW of the wall.
- the transitions from the bridges 5 to the two walls of the blade 3 are rounded with a radius R.
- the radius R is slightly smaller according to the present embodiment as the thickness DS of the webs 5 and corresponds to the thickness of the wall DW.
- the distance AS between two adjacent webs 5 is about twice as great as the distance AW of the two walls of the blade 3.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
Description
- Fig. 1
- eine perspektivische Ansicht eines erfindungsgemäßen Radiallüfterrades aus Kunststoff,
- Fig. 2
- eine Detailansicht des Radiallüfterrades von Fig. 1 und
- Fig. 3
- einen Schnitt durch eine Schaufel des Radiallüfterrades von Fig. 1.
- 1
- Radiallüfterrad
- 2
- Ring
- 3
- Schaufel
- 4
- Anbindungsstelle
- 5
- Steg
- AS
- Abstand zwischen zwei benachbarten Stegen
- AW
- Abstand der beiden Wände der Schaufel
- DS
- Dicke Steg
- DW
- Dicke Wand
- Radius
- R
Claims (7)
- Radiallüfterrad, insbesondere aus Kunststoff, mit einer Mehrzahl von zwischen zwei Ringen (2) angeordneten Schaufeln (3), dadurch gekennzeichnet, dass die Schaufeln (3) als Hohlprofile ausgebildet sind, wobei zwischen den beiden Wänden der Schaufeln (3) Stege (5) vorgesehen sind.
- Radiallüfterrad nach Anspruch 1, dadurch gekennzeichnet, dass die Stege (5) senkrecht zur Wand der Schaufeln (3) angeordnet sind.
- Radiallüfterrad nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass der Abstand (AS) zweier Stege (5) ein- bis dreimal so groß wie der Abstand (AW) der gegenüberliegenden Wände der Schaufeln (3) ist.
- Radiallüfterrad nach Anspruch 3, dadurch gekennzeichnet, dass der Abstand (AS) zweier Stege (5) 1,8 bis 2,2-mal so groß wie der Abstand (AW) der gegenüberliegenden Wände der Schaufeln (3) ist.
- Radiallüfterrad nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Dicke (DS) der Stege (5) gleich oder etwas größer als die Dicke (DW) der Wände der Schaufeln (3) ist.
- Radiallüfterrad nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass ein Radius (R) am Übergang von einer Wand zu einem Steg (5) vorgesehen ist.
- Radiallüfterrad nach Anspruch 6, dadurch gekennzeichnet, dass der Radius (R) kleiner als die Dicke (DS) des Steges (3) ist.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10310868A DE10310868A1 (de) | 2003-03-11 | 2003-03-11 | Radiallüfterrad, insbesondere aus Kunststoff |
DE10310868 | 2003-03-11 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1457683A2 true EP1457683A2 (de) | 2004-09-15 |
EP1457683A3 EP1457683A3 (de) | 2005-11-30 |
EP1457683B1 EP1457683B1 (de) | 2009-05-20 |
Family
ID=32748213
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04005006A Expired - Fee Related EP1457683B1 (de) | 2003-03-11 | 2004-03-03 | Radiallüfterrad, insbesondere aus Kunststoff |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP1457683B1 (de) |
DE (2) | DE10310868A1 (de) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102009001095A1 (de) | 2009-02-24 | 2010-08-26 | Bfa Anlagen + System Gmbh | Lüfterrad |
US9829009B2 (en) | 2009-11-03 | 2017-11-28 | P.A.C. International Inc. | Centrifugal ceiling fan |
CN109695590A (zh) * | 2017-10-20 | 2019-04-30 | 美蓓亚三美株式会社 | 叶轮和使用该叶轮的风扇 |
CN110792635A (zh) * | 2018-08-02 | 2020-02-14 | 宁波方太厨具有限公司 | 一种散热风机及安装有该风机的厨房空气调节系统 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB608703A (en) * | 1940-02-19 | 1948-09-20 | Machf Gebr Stork & Co N V | Improvements in and relating to centrifugal fans |
DE1041637B (de) * | 1955-06-24 | 1958-10-23 | Licentia Gmbh | Radialgeblaese mit Blechschaufeln |
DE3312933A1 (de) * | 1982-06-01 | 1983-12-01 | VEB Plastlüfter und Anlagenbau, DDR 8023 Dresden | Schaufel fuer laufraeder von kreiselarbeitsmaschinen |
US4565495A (en) * | 1983-08-11 | 1986-01-21 | Electric Power Research Institute, Inc. | Armoring system for an airfoil centrifugal fan |
EP0622548A1 (de) * | 1993-03-22 | 1994-11-02 | Christoph Sunder-Plassmann | Laufrad für Radialventilatoren |
US20020182079A1 (en) * | 2001-05-30 | 2002-12-05 | Gerken Mark A. | Airfoil blade and method for its manufacture |
-
2003
- 2003-03-11 DE DE10310868A patent/DE10310868A1/de not_active Withdrawn
-
2004
- 2004-03-03 DE DE502004009498T patent/DE502004009498D1/de not_active Expired - Lifetime
- 2004-03-03 EP EP04005006A patent/EP1457683B1/de not_active Expired - Fee Related
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB608703A (en) * | 1940-02-19 | 1948-09-20 | Machf Gebr Stork & Co N V | Improvements in and relating to centrifugal fans |
DE1041637B (de) * | 1955-06-24 | 1958-10-23 | Licentia Gmbh | Radialgeblaese mit Blechschaufeln |
DE3312933A1 (de) * | 1982-06-01 | 1983-12-01 | VEB Plastlüfter und Anlagenbau, DDR 8023 Dresden | Schaufel fuer laufraeder von kreiselarbeitsmaschinen |
US4565495A (en) * | 1983-08-11 | 1986-01-21 | Electric Power Research Institute, Inc. | Armoring system for an airfoil centrifugal fan |
EP0622548A1 (de) * | 1993-03-22 | 1994-11-02 | Christoph Sunder-Plassmann | Laufrad für Radialventilatoren |
US20020182079A1 (en) * | 2001-05-30 | 2002-12-05 | Gerken Mark A. | Airfoil blade and method for its manufacture |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102009001095A1 (de) | 2009-02-24 | 2010-08-26 | Bfa Anlagen + System Gmbh | Lüfterrad |
US9829009B2 (en) | 2009-11-03 | 2017-11-28 | P.A.C. International Inc. | Centrifugal ceiling fan |
CN109695590A (zh) * | 2017-10-20 | 2019-04-30 | 美蓓亚三美株式会社 | 叶轮和使用该叶轮的风扇 |
CN109695590B (zh) * | 2017-10-20 | 2021-08-24 | 美蓓亚三美株式会社 | 叶轮和使用该叶轮的风扇 |
CN110792635A (zh) * | 2018-08-02 | 2020-02-14 | 宁波方太厨具有限公司 | 一种散热风机及安装有该风机的厨房空气调节系统 |
CN110792635B (zh) * | 2018-08-02 | 2021-07-23 | 宁波方太厨具有限公司 | 一种散热风机及安装有该风机的厨房空气调节系统 |
Also Published As
Publication number | Publication date |
---|---|
EP1457683B1 (de) | 2009-05-20 |
DE10310868A1 (de) | 2004-09-23 |
DE502004009498D1 (de) | 2009-07-02 |
EP1457683A3 (de) | 2005-11-30 |
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