AT218664B - Impeller made of thermoplastic material for flow machines, in particular centrifugal fans - Google Patents
Impeller made of thermoplastic material for flow machines, in particular centrifugal fansInfo
- Publication number
- AT218664B AT218664B AT548160A AT548160A AT218664B AT 218664 B AT218664 B AT 218664B AT 548160 A AT548160 A AT 548160A AT 548160 A AT548160 A AT 548160A AT 218664 B AT218664 B AT 218664B
- Authority
- AT
- Austria
- Prior art keywords
- thermoplastic material
- centrifugal fans
- flow machines
- impeller made
- particular centrifugal
- Prior art date
Links
- 239000012815 thermoplastic material Substances 0.000 title 1
- 239000002184 metal Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Description
<Desc/Clms Page number 1>
I aufrad aus thermoplastischem Kunststoff für Strömungsmaschinen, insbesondere Zentrifugal-Ventilatoren Es sind bereits Laufräder für Zentrifugal-Ventilatoren u. dgl. bekannt, deren aus Blech bestehende Schaufeln hohl sind sowie auch Laufräder, die einschliesslich der vollwandige Schaufeln aus Kunststoff
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Erfindungsgegenstand ein Laufrad,genommen Ist.
Ein Ansfuarungsbeispiel der Erfindung Ist an Hand der Zeichnung näher erläutert. Darin zeigen Fig. l eine perspektivische Darstellung einer Ventilatorschaufel mit dem an die Schaufel unmittelbar anschliessenden, aus der Deckscheibe ausgerissenen Teil derselben, Fig. 2 den gleichen Gegenstand von der Untersei- te gesehen, Fig. 3 einen Querschnitt durch die Schaufel und Fig. 4 das Laufrad von der Unterseite gesehen.
Die Schaufel c Ist durch einen flachen, dünnwandigen Hohlkörper gebildet, der sich gegen den Fuss zu keilförmig verbreitert und mit Abrundungen a in die ebene Fläche der Deckscheibe d übergeht. Die
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oder VakuumverfabrenDie Keilform des Schaufelquerschnittes gibt den Schaufeln die nötige Steifheit, und die Abrundungen am Schaufelfuss sorgen für eine gute Verbindung mit der Deckscheibe, was die Schaufel zur Aufnahme der im Betriebe auftretenden Luftreaktions- und Fliehkräfte befählgt.
Die Keilform ermöglicht überdies ein leichtes Abziehen des Schaufelrades von der Pressform.
PATENTANSPRÜCHE :
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Strômungsmaschinen,Scliaufelfassen ausgenommen Ist.
**WARNUNG** Ende DESC Feld kannt Anfang CLMS uberlappen**.
<Desc / Clms Page number 1>
I aufrad made of thermoplastic for flow machines, especially centrifugal fans There are already impellers for centrifugal fans u. Like. Known whose blades made of sheet metal are hollow and also impellers, including the full-walled blades made of plastic
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Subject matter of the invention is an impeller.
An Ansfuarungsbeispiel the invention is explained in more detail with reference to the drawing. 1 shows a perspective illustration of a fan blade with the part of the same immediately adjoining the blade and torn from the cover disk, FIG. 2 shows the same object seen from the underside, FIG. 3 shows a cross section through the blade and FIG the impeller seen from the bottom.
The blade c is formed by a flat, thin-walled hollow body, which widens in a wedge-shaped manner towards the foot and merges with rounded areas a into the flat surface of the cover disk d. The
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The wedge shape of the blade cross-section gives the blades the necessary rigidity, and the rounded edges at the blade root ensure a good connection with the cover disk, which enables the blade to absorb the air reaction and centrifugal forces that occur during operation.
The wedge shape also enables the paddle wheel to be easily removed from the mold.
PATENT CLAIMS:
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Flow machines, excluding Scliaufassen.
** WARNING ** End of DESC field may overlap beginning of CLMS **.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT548160A AT218664B (en) | 1960-07-16 | 1960-07-16 | Impeller made of thermoplastic material for flow machines, in particular centrifugal fans |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT548160A AT218664B (en) | 1960-07-16 | 1960-07-16 | Impeller made of thermoplastic material for flow machines, in particular centrifugal fans |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AT218664B true AT218664B (en) | 1961-12-11 |
Family
ID=3576273
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT548160A AT218664B (en) | 1960-07-16 | 1960-07-16 | Impeller made of thermoplastic material for flow machines, in particular centrifugal fans |
Country Status (1)
| Country | Link |
|---|---|
| AT (1) | AT218664B (en) |
-
1960
- 1960-07-16 AT AT548160A patent/AT218664B/en active
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