AT155336B - Auxiliary valve for vacuum systems. - Google Patents

Auxiliary valve for vacuum systems.

Info

Publication number
AT155336B
AT155336B AT155336DA AT155336B AT 155336 B AT155336 B AT 155336B AT 155336D A AT155336D A AT 155336DA AT 155336 B AT155336 B AT 155336B
Authority
AT
Austria
Prior art keywords
vacuum systems
auxiliary valve
valve
piston
openings
Prior art date
Application number
Other languages
German (de)
Original Assignee
Gresham & Craven Ltd
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 Gresham & Craven Ltd filed Critical Gresham & Craven Ltd
Application granted granted Critical
Publication of AT155336B publication Critical patent/AT155336B/en

Links

Landscapes

  • Self-Closing Valves And Venting Or Aerating Valves (AREA)
  • Details Of Valves (AREA)

Description

  

   <Desc/Clms Page number 1> 
 



  Hilfsventil für Vakuumsysteme. 
 EMI1.1 
 

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 Druckfeder e arbeitet. Öffnungen 1) in dem   Führungszylinder   o lassen atmosphärische Luft in den Raum zwischen den beiden Kolben ein. 



   Der Teil q des Schaftes zwischen den beiden Kolben a und n weist die Form eines Kegelstumpfes mit dem verjüngten Ende nach oben auf oder ist kurvenförmig gestaltet. Diese Form des Schaftes unterstützt die Regelung der Luft und sichert einen ausgeglichenen Luftstrom von den Öffnungen p im Führungszylinder zu den Öffnungen c im Ventilzylinder. Wenn der freigegebene Querschnitt der Ventilöffnungen wächst, so wächst auch der Querschnitt des ringförmigen Durchlasses r zwischen den Zylinderwänden und dem Ventilschaft in der Ebene der Ventilöffnungen. 



   PATENT-ANSPRÜCHE :
1. Hilfsventil für Vakuumsysteme, gekennzeichnet durch einen in einem Zylinder (b) über   Ventilöffnungen     (e)   beweglichen Kolben (a), dessen Schaft (q) durch eine am Zylinderende befindliehe, von den Ventilöffnungen durch den Kolben getrennte Lufteinlassöffnung   dz   ohne sie auszufüllen, hindurchragt und einen in einem Führungszylinder (o) arbeitenden Führungskolben (n) aufweist, und ferner dadurch, dass der Kolben (a) durch eine Feder (e) mit einem die Lufteinlassöffnung   (1)   
 EMI2.1 




   <Desc / Clms Page number 1>
 



  Auxiliary valve for vacuum systems.
 EMI1.1
 

 <Desc / Clms Page number 2>

 Compression spring e works. Openings 1) in the guide cylinder o allow atmospheric air to enter the space between the two pistons.



   The part q of the shaft between the two pistons a and n has the shape of a truncated cone with the tapered end upwards or is curved. This shape of the shaft supports the regulation of the air and ensures a balanced flow of air from the openings p in the guide cylinder to the openings c in the valve cylinder. If the released cross section of the valve openings increases, the cross section of the annular passage r between the cylinder walls and the valve stem in the plane of the valve openings also increases.



   PATENT CLAIMS:
1. Auxiliary valve for vacuum systems, characterized by a piston (a) which is movable in a cylinder (b) via valve openings (e), the shaft (q) of which is located at the end of the cylinder by an air inlet opening dz separated from the valve openings by the piston without filling it, protrudes through and has a guide piston (s) working in a guide cylinder (o), and further in that the piston (a) is connected to the air inlet opening (1) by a spring (e)
 EMI2.1

Claims (1)

Ventilkolben (a) und dem Führungskolben (n) konisch oder kurvenförmig gestaltet ist, so dass die Fläche der ringförmigen Lufteinlassöffnung (r) vergrössert wird, wenn die Ventilöffnungen (c) fortschreitend geöffnet werden, wobei die durch den Lufteinlass streichende Luft zu den Ventilöffnungen geleitet wird. EMI2.2 Valve piston (a) and the guide piston (s) is conical or curved, so that the area of the annular air inlet opening (r) is increased when the valve openings (c) are gradually opened, the air passing through the air inlet being guided to the valve openings becomes. EMI2.2
AT155336D 1937-08-25 1937-08-25 Auxiliary valve for vacuum systems. AT155336B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT155336T 1937-08-25

Publications (1)

Publication Number Publication Date
AT155336B true AT155336B (en) 1938-12-27

Family

ID=3648435

Family Applications (1)

Application Number Title Priority Date Filing Date
AT155336D AT155336B (en) 1937-08-25 1937-08-25 Auxiliary valve for vacuum systems.

Country Status (1)

Country Link
AT (1) AT155336B (en)

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