AT139168B - Control valve for automatic venting of rooms that are only temporarily pressurized. - Google Patents

Control valve for automatic venting of rooms that are only temporarily pressurized.

Info

Publication number
AT139168B
AT139168B AT139168DA AT139168B AT 139168 B AT139168 B AT 139168B AT 139168D A AT139168D A AT 139168DA AT 139168 B AT139168 B AT 139168B
Authority
AT
Austria
Prior art keywords
control valve
space
piston
rooms
pressure medium
Prior art date
Application number
Other languages
German (de)
Original Assignee
Knorr Bremse Ag
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 Knorr Bremse Ag filed Critical Knorr Bremse Ag
Application granted granted Critical
Publication of AT139168B publication Critical patent/AT139168B/en

Links

Landscapes

  • Fluid-Driven Valves (AREA)
  • Details Of Valves (AREA)
  • Control Of Fluid Pressure (AREA)

Description

  

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 mittel durch dieses Rohr in den zeitweilig unter Druck zu setzenden Raum gelangen lässt. Der in diesem Raum ansteigende Druck wirkt sich auch auf den   Druckregler i   aus. Dieser befand sich in einer Stellung, bei welcher er das Rohr   lu   und somit auch den Raum rechts vom Kolben   c   mit der freien Luft in Verbindung setzte. Beim Erreichen eines bestimmten Druckes in dem mit Druck zeitweilig zu ffillenden Raum tritt 
 EMI2.1 
 daher entlüftet.

   Das Absperren des Druckmittels gegen das Rohr b und dessen allmähliche Entlüftung führt die Umsteuerbewegung des Reglers   i herbei, der'den   Raum rechts vom Kolben c wieder mit der freien Luft verbindet, so dass dann auf beiden Seiten Druckgleichheit herrscht und der Schieber d in der 
 EMI2.2 
 
PATENT-ANSPRÜCHE :
1.

   Steuerventil zur selbsttätigen Entlüftung nur zeitweilig unter Druck zu setzender Räume, dadurch gekennzeichnet, dass ein die Verbindung des zeitweilig unter Druck zu setzenden Raumes einerseits mit der Druckmittelquelle, anderseits mit der freien Luft'überwachendes Organ (d) von einem Steuerkolben   (e)   betätigt wird, der durch das zuströmende Druckmittel in die die erstgenannte Verbindung herstellende Lage bewegt wird und-sobald auf seinen beiden   Seiten Druckgleichheit herrscht-selbst-   tätig in die die Entlüftung des genannten Raumes bewirkende Lage   zurückkehrt.  



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 medium can get through this pipe into the space to be temporarily pressurized. The increasing pressure in this room also affects the pressure regulator i. This was in a position in which it connected the tube lu and thus also the space to the right of the piston c with the free air. When a certain pressure is reached in the space to be temporarily filled with pressure
 EMI2.1
 therefore vented.

   The shut-off of the pressure medium against the pipe b and its gradual venting leads to the reversing movement of the controller i, which reconnects the space to the right of the piston c with the free air, so that the pressure on both sides is equal and the slide d in the
 EMI2.2
 
PATENT CLAIMS:
1.

   Control valve for automatic venting of spaces to be temporarily pressurized, characterized in that a connection of the space to be temporarily pressurized on the one hand with the pressure medium source and on the other hand with the free air monitoring element (d) is actuated by a control piston (e) , which is moved by the inflowing pressure medium into the position producing the first-mentioned connection and - as soon as there is equal pressure on both sides - automatically returns to the position causing the ventilation of the mentioned space.

Claims (1)

2. Steuerventil nach Anspruch 1, dadurch gekennzeichnet, dass die Verbindung beider Seiten des Steuerkolbens (e) durch einen gedrosselten Durchlass (g) vermittelt wird. 2. Control valve according to claim 1, characterized in that the connection of both sides of the control piston (e) is mediated by a throttled passage (g). 3. Eine Ausführungsform eines Steuerventils nach Anspruch 1, dadurch gekennzeichnet, dass der das Steuerorgan (d) betätigende Kolben als Differentialkolben c, ausgeführt ist, wobei die Druckmittelzuführung (b) ungedrosselt an den zwischen beiden Kolben (c, k) befindlichen Raum angeschlossen ist, während der ausserhalb des grösseren Kolbens (c) befindliche Raum an einen Druckregler (i) angeschlossen ist, der anderseits mit dem mit Druckmittel zeitweilig zu füllenden Raum in Verbindung steht und bei Erreichen eines bestimmten Druckes in diesem Raum die Aussenseite des grösseren Kolbens (e) mit Druckmittel beaufschlagt, nach dem Absperren der Druckmittelleitung (b) aber entlüftet. EMI2.3 3. An embodiment of a control valve according to claim 1, characterized in that the piston actuating the control element (d) is designed as a differential piston c, the pressure medium supply (b) being connected unthrottled to the space between the two pistons (c, k) , while the space outside the larger piston (c) is connected to a pressure regulator (i) which, on the other hand, is connected to the space to be temporarily filled with pressure medium and, when a certain pressure is reached in this space, the outside of the larger piston (e ) pressurized with pressure medium, but vented after the pressure medium line (b) has been shut off. EMI2.3
AT139168D 1932-11-03 1933-09-30 Control valve for automatic venting of rooms that are only temporarily pressurized. AT139168B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE139168X 1932-11-03

Publications (1)

Publication Number Publication Date
AT139168B true AT139168B (en) 1934-10-25

Family

ID=5667648

Family Applications (1)

Application Number Title Priority Date Filing Date
AT139168D AT139168B (en) 1932-11-03 1933-09-30 Control valve for automatic venting of rooms that are only temporarily pressurized.

Country Status (1)

Country Link
AT (1) AT139168B (en)

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