AT78885B - Impeller. - Google Patents

Impeller.

Info

Publication number
AT78885B
AT78885B AT78885DA AT78885B AT 78885 B AT78885 B AT 78885B AT 78885D A AT78885D A AT 78885DA AT 78885 B AT78885 B AT 78885B
Authority
AT
Austria
Prior art keywords
impeller
ring
wheel
blades
blade
Prior art date
Application number
Other languages
German (de)
Original Assignee
Maffei Schwartzkopff Werke Ges
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 Maffei Schwartzkopff Werke Ges filed Critical Maffei Schwartzkopff Werke Ges
Application granted granted Critical
Publication of AT78885B publication Critical patent/AT78885B/en

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  • Structures Of Non-Positive Displacement Pumps (AREA)

Description

  

   <Desc/Clms Page number 1> 
 



  Kreiselrad. 



   Gegenstand Der Erfindung ist ein für Gebläse und Pumpen geeignetes Kreiselrad mit kegelförmigen Schaufeln, deren Kegelachsen radial stehen und bei denen die   Krümmungs-   halbmesser der Kegelflächen nach dem Radumfange zunehmen. Die reine Kegelform ist den Anforderungen der Festigkeit günstig. Auch lassen sich die Schaufeln dieser Form durch einfaches Biegen des ebenen Bleches herstellen. Bombieren und Bördeln des Schaufelbleches, die das Herstellen verteuern   würden,   sind also nicht erforderlich. Die Schaufelenden sind auf der Eintrittsseife an einem U-förmigen Ringe befestigt, der ein Ausbiegen der Enden bei hohen Drehzahlen verhindert. 



   Die Zeichnung veranschaulicht ein Kreiselrad nach der Erfindung beispielsweise in einer Ausführungsform. Fig. 1 stellt drei Schnitte einer Schaufel dar, und zwar bei b, c, d in Fig. 2, in der Richtung der Kegelachse gesehen. Die eingezeichneten Geschwindigkeitsparallelogramme zeigen, dass sich die gleichbleibende Axialgeschwindigkeit und die ver- änderliche   Tangentialgeschwindigkeit   je zu einer   Gesamtkraft zusammensetzen,   die derart 
 EMI1.1 
 richtungen   i   der Fig. 2 erfüllt ist. 



   Nach den Fig. 2 und 3, die das Kreiselrad im axialen Schnitte und in einer Seitenansicht darstellen, sind die Schaufeln a an dem U-förmigen   Versteifungsring./und   an der Nabenscheibe e durch Winkel oder umgebogene Lappen befestigt. Die Abdichtung des Rades gegen das Gehäuse erfolgt einerseits durch die beiden Schenkei des U-formigen Ringes f gegenüber dem Ringe 9 und andererseits am Ringe h. 

**WARNUNG** Ende DESC Feld kannt Anfang CLMS uberlappen**.



   <Desc / Clms Page number 1>
 



  Impeller.



   The subject matter of the invention is a centrifugal wheel suitable for fans and pumps with conical blades, the conical axes of which are radial and in which the radius of curvature of the conical surfaces increases according to the circumference of the wheel. The pure cone shape is favorable to the strength requirements. The blades of this shape can also be produced by simply bending the flat sheet metal. Crowning and flanging of the blade plate, which would make production more expensive, are therefore not required. The blade ends are attached to a U-shaped ring on the inlet soap, which prevents the ends from bending out at high speeds.



   The drawing illustrates a rotary wheel according to the invention, for example in one embodiment. Fig. 1 shows three sections of a blade, namely at b, c, d in Fig. 2, seen in the direction of the cone axis. The speed parallelograms shown show that the constant axial speed and the changeable tangential speed each combine to form a total force that is in this way
 EMI1.1
 directions i of FIG. 2 is met.



   According to FIGS. 2 and 3, which show the impeller in axial sections and in a side view, the blades a are attached to the U-shaped stiffening ring / and to the hub disk e by angles or bent lugs. The wheel is sealed against the housing on the one hand by the two legs of the U-shaped ring f opposite the ring 9 and on the other hand on the ring h.

** WARNING ** End of DESC field may overlap beginning of CLMS **.

 

Claims (1)

PATEXT-A SPRUCH : EMI1.2 **WARNUNG** Ende CLMS Feld Kannt Anfang DESC uberlappen**. PATEXT-A SAYING: EMI1.2 ** WARNING ** End of CLMS field may overlap beginning of DESC **.
AT78885D 1917-12-15 1918-01-10 Impeller. AT78885B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE78885X 1917-12-15

Publications (1)

Publication Number Publication Date
AT78885B true AT78885B (en) 1919-10-25

Family

ID=5638395

Family Applications (1)

Application Number Title Priority Date Filing Date
AT78885D AT78885B (en) 1917-12-15 1918-01-10 Impeller.

Country Status (1)

Country Link
AT (1) AT78885B (en)

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