AT83654B - Device for generating a negative pressure. - Google Patents

Device for generating a negative pressure.

Info

Publication number
AT83654B
AT83654B AT83654DA AT83654B AT 83654 B AT83654 B AT 83654B AT 83654D A AT83654D A AT 83654DA AT 83654 B AT83654 B AT 83654B
Authority
AT
Austria
Prior art keywords
negative pressure
generating
space
drum
vented
Prior art date
Application number
Other languages
German (de)
Inventor
Jozeph Hendrik Storm
Sjuck Gerrold Van Weld Rengers
Original Assignee
Jozeph Hendrik Storm
Sjuck Gerrold Van Weld Rengers
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 Jozeph Hendrik Storm, Sjuck Gerrold Van Weld Rengers filed Critical Jozeph Hendrik Storm
Application granted granted Critical
Publication of AT83654B publication Critical patent/AT83654B/en

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  • Respiratory Apparatuses And Protective Means (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Rigid Containers With Two Or More Constituent Elements (AREA)

Description

  

   <Desc/Clms Page number 1> 
 



  Vorrichtung zur Erzeugung eines Unterdruckes. 



    Die Einrichtung der den Gegenstand der Erfindung bildenden Entluftungspumpe gründet sich auf die Beobachtung, dass beim raschen Kreisen von Umdrehungskörpern mit glatter Oberfläche um ihre geometrische Achse die Adhäsionskraft der Moleküle des umgebenden Mittels überwunden wird, so dass sich die Moleküle von der Wandfläche loslösen und, einen leeren Raum hinterlassend, in tangentialer Richtung zurückbleiben. Taucht man z. B. einen sieh schnell drehenden. Stab in Wasser, so bildet sich um den Stab eine trichterförmige Einsenkung des. Wasserspiegels, und um kreisende Langgeschosse entsteht ringsherum ein Raum, in dem Unterdruck herrscht.

   Nach der Erfindung wird diese Erscheinung in der Weise velwertet, dass man einen zylindrischen Hohlkörper mit glatter Aussenfläche, dessen Mantel mit Öffnungen ausgestattet und in dessen einer oder beiden Stirnwänden in der Mitte eine mit dem zu entluftenden Raume dicht zu verbindende Durchlochung angeordnet ist, zum raschen Kreisen um seine geometrische Achse bringt. Hierbei wird durch die Öffnungen in der Mantelfläche bei aussen eintretendem Unterdruck Luft aus dem Zylinderhohlraum austreten und durch die Durchlochungen Luft aus dem zu entluftenden Raume in den Zylinderhohlraum nachströmen. 



  In der Zeichnung ist beispielsweise eine Ausführungsform des Erfindungsgegenstandes in einem längs der Achse eines kreiszylindrischen Hohlkörpers geführten Schnitte dargestellt. 



  Die zylindrische Mantelfläche der glattwandigen Trommel 1 ist mit Schlitzen 2 ausgestattet. 



  In der Mitte der einen Stirnwand ist die Trommel mit der Antriebswelle 3 verbunden, die von einer Maschine aus in schnelle Umdrehung versetzt wird. An die Durchlochung in der Mitte der anderen Stirnwand schliesst sich ein von einer Stopfbüchse 7 umschlossener Stutzen an, in den das Rohr 5 hineinreicht, das mit dem zu entluftenden Raume dicht verbunden ist. Um diesen Raum nach Erreichung des gewünschten Unterdruckes absperren zu können. ist in das Rohr 5 ein Hahn 6 eingeschaltet. Ein Druckmesser, der an einem vom Rohre 5 abzweigenden Rohre 8 angebracht ist, gestattet, den Grad der eingetretenen Luftverdünnung abzulesen. 



  Wenn die Trommel 1 in schnelle Umdrehung versetzt wird, entsteht rings um sie Unterdruck. Infolgedessen strömt der Trommelinhalt zur Druckausgleichung durch die Schlitze 2 aus und wird sofort durch Luft ersetzt, die durch das Rohr 5 zuströmt. 



  Die Trommelachse'kann statt lotrecht, wie in der Zeichnung dargestellt, auch wagrecht oder geneigt angeordnet werden. 

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



   <Desc / Clms Page number 1>
 



  Device for generating a negative pressure.



    The device of the ventilation pump forming the subject of the invention is based on the observation that when rotating bodies with a smooth surface quickly circling around their geometric axis, the adhesive force of the molecules of the surrounding agent is overcome, so that the molecules detach from the wall surface and, a leaving empty space, lagging in a tangential direction. If you dive z. B. see a fast turning. Rod in water, a funnel-shaped depression of the water level forms around the rod, and around long circling floors a space is created in which there is negative pressure.

   According to the invention, this phenomenon is evaluated in such a way that a cylindrical hollow body with a smooth outer surface, the jacket of which is equipped with openings and a perforation to be tightly connected to the space to be vented is arranged in one or both end walls in the middle Circles around its geometric axis. In this case, air will emerge from the cylinder cavity through the openings in the lateral surface when negative pressure enters from the outside and air will flow into the cylinder cavity through the perforations from the space to be vented.



  In the drawing, for example, an embodiment of the subject matter of the invention is shown in a section along the axis of a circular cylindrical hollow body.



  The cylindrical outer surface of the smooth-walled drum 1 is equipped with slots 2.



  In the middle of one end wall, the drum is connected to the drive shaft 3, which is set in rapid rotation by a machine. The perforation in the middle of the other end wall is followed by a connector enclosed by a stuffing box 7, into which the pipe 5 extends, which is tightly connected to the space to be vented. In order to be able to shut off this space after the desired negative pressure has been reached. a cock 6 is switched on in the pipe 5. A pressure gauge, which is attached to a pipe 8 branching off from the pipe 5, allows the degree of air dilution that has occurred to be read off.



  When the drum 1 is set in rapid rotation, negative pressure is created around it. As a result, the contents of the drum flows out through the slots 2 to equalize the pressure and are immediately replaced by air which flows in through the tube 5.



  Instead of being perpendicular, as shown in the drawing, the drum axis can also be arranged horizontally or inclined.

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

 

Claims (1)

PATENT-ANSPRUCH : EMI1.1 an. eine Durchlochung in der Mitte der einen Trommelstirnwand anschliessenden dichten Verbindung mit dem zu entluftenden Raume, EMI1.2 **WARNUNG** Ende CLMS Feld Kannt Anfang DESC uberlappen**. PATENT CLAIM: EMI1.1 at. a perforation in the middle of the tight connection with the space to be vented, adjoining a drum front wall, EMI1.2 ** WARNING ** End of CLMS field may overlap beginning of DESC **.
AT83654D 1914-02-07 1915-02-06 Device for generating a negative pressure. AT83654B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE83654X 1914-02-07

Publications (1)

Publication Number Publication Date
AT83654B true AT83654B (en) 1921-04-25

Family

ID=5640131

Family Applications (1)

Application Number Title Priority Date Filing Date
AT83654D AT83654B (en) 1914-02-07 1915-02-06 Device for generating a negative pressure.

Country Status (1)

Country Link
AT (1) AT83654B (en)

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