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AT42887B - Automatic axle relief for centrifugal pumps, turbines and fans. - Google Patents

Automatic axle relief for centrifugal pumps, turbines and fans.

Info

Publication number
AT42887B
AT42887B AT42887DA AT42887B AT 42887 B AT42887 B AT 42887B AT 42887D A AT42887D A AT 42887DA AT 42887 B AT42887 B AT 42887B
Authority
AT
Austria
Prior art keywords
turbines
fans
centrifugal pumps
relief
piston
Prior art date
Application number
Other languages
German (de)
Original Assignee
Berliner Maschb Actien Ges Vor
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
Priority claimed from DE1906208381D external-priority patent/DE208381C/de
Application filed by Berliner Maschb Actien Ges Vor filed Critical Berliner Maschb Actien Ges Vor
Application granted granted Critical
Publication of AT42887B publication Critical patent/AT42887B/en

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  • Structures Of Non-Positive Displacement Pumps (AREA)

Description

  

   <Desc/Clms Page number 1> 
 



  Selbsttätige Achsenentlastung für Zentrifugalpumpen, Turbinen und Ventilatoren. 



   Bei der durch das Stammpatent geschützten   Vorrichtung   befindet sich von den senkrecht zur Richtung des Achsialschubes liegenden Dichtungsflächen ein Paar in der Nähe des äusseren   Kolbenumfanges   ; damit ist   aber der Ubelstand   verbunden, dass eine starke Abnutzung infolge der hohen Geschwindigkeit eintritt, mit der die Dichtungsflächen aneinander vorbeigleiten. 



  Dieser Umstand gewinnt insbesondere dann Bedeutung, wenn sandhaltiges Wasser zu fördern 
 EMI1.1 
   widcrstand herrschen muss, durch   den der Druck p1 auf den Druck      abgedrosselt wird. Dieser Widerstand entsteht dadurch, dass die Flächen cl und   c   bis auf ein   bestimmtes   Mass einander genähertsind. 
 EMI1.2 
 vermag. 



   Es sei   weiter   angenommen, dass der in der Pumpe erzeugte achsialc Druck kleiner wird, 
 EMI1.3 
 

 <Desc/Clms Page number 2> 

 



   Die beschriebene Entlastung zeichnet sich nicht nur dadurch aus, dass die, Bewegungwiderstände herabgesetzt und der Betrieb ein sicherer ist, sondern es bietet sich auch ein wichtiger 
 EMI2.1 
 also einem leicht auswechselbaren Körper von geringem Umfange.



   <Desc / Clms Page number 1>
 



  Automatic axle relief for centrifugal pumps, turbines and fans.



   In the device protected by the parent patent, a pair of the sealing surfaces lying perpendicular to the direction of the axial thrust is located in the vicinity of the outer piston circumference; but this is associated with the disadvantage that severe wear occurs as a result of the high speed at which the sealing surfaces slide past one another.



  This fact becomes particularly important when pumping sandy water
 EMI1.1
   there must be resistance by which the pressure p1 is throttled down to the pressure. This resistance arises from the fact that the surfaces cl and c are approximated to a certain extent.
 EMI1.2
 able.



   It is further assumed that the axial pressure generated in the pump becomes smaller,
 EMI1.3
 

 <Desc / Clms Page number 2>

 



   The described relief is not only characterized by the fact that the movement resistance is reduced and the operation is safer, but it is also an important one
 EMI2.1
 thus an easily interchangeable body of small size.

 

Claims (1)

PATENT-ANSPRUCH : Selbsttätige Achsenentlastung für Zentrifugalpumpen, Turbinen und Ventilatoren mit einem auf der Welle befestigten, vom abgedrosselten Druckwasser der Pumpe belasteten, in einem Zylinder spielenden Kolben nach Pa. tent N r. 41822, dadurch gekennzeichnet, dass die vor dem Eintritt dos Druckwassers in den Zylinder (f) senkrecht zur Richtung des Achsial- ) schubes liegende Drosselstrecke (c1, c2) nahe zur Welle angeordnet ist, wobei die Spaltweite infolge der im Betriebe wechselnden geringen Verschiebung des Laufrades veränderlich ist, so dass der auf den Kolben wirkende Entlastungsdruck infolge wechselnden Strömungswiderstandes mit möglichst geringen Bewegungswiderständen geregelt wird, PATENT CLAIM: Automatic axle relief for centrifugal pumps, turbines and fans with a piston attached to the shaft, loaded by the throttled pressurized water of the pump and playing in a cylinder according to Pa. tent no. 41822, characterized in that the throttle section (c1, c2) lying in front of the entry of the pressurized water into the cylinder (f) perpendicular to the direction of the axial thrust is arranged close to the shaft, the gap width being due to the slight displacement of the changing in operation Impeller is variable, so that the relief pressure acting on the piston is regulated with the lowest possible movement resistance due to changing flow resistance, während der am Umfange des Kolbens angeordnete zylindrische Spalt frei in die Atmosphäre mündet. EMI2.2 while the cylindrical gap arranged on the circumference of the piston opens freely into the atmosphere. EMI2.2
AT42887D 1906-06-20 1908-04-06 Automatic axle relief for centrifugal pumps, turbines and fans. AT42887B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1906208381D DE208381C (en) 1906-06-20

Publications (1)

Publication Number Publication Date
AT42887B true AT42887B (en) 1910-07-11

Family

ID=5794204

Family Applications (1)

Application Number Title Priority Date Filing Date
AT42887D AT42887B (en) 1906-06-20 1908-04-06 Automatic axle relief for centrifugal pumps, turbines and fans.

Country Status (1)

Country Link
AT (1) AT42887B (en)

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