DE893982C - Valve for flowing means in electrical switches, especially gas pressure switches - Google Patents

Valve for flowing means in electrical switches, especially gas pressure switches

Info

Publication number
DE893982C
DE893982C DEA7793D DEA0007793D DE893982C DE 893982 C DE893982 C DE 893982C DE A7793 D DEA7793 D DE A7793D DE A0007793 D DEA0007793 D DE A0007793D DE 893982 C DE893982 C DE 893982C
Authority
DE
Germany
Prior art keywords
valve
piston
switches
gas pressure
flowing
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
DEA7793D
Other languages
German (de)
Inventor
Gerhard Dipl-Ing Brockhaus
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
AEG AG
Original Assignee
AEG 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 AEG AG filed Critical AEG AG
Priority to DEA7793D priority Critical patent/DE893982C/en
Application granted granted Critical
Publication of DE893982C publication Critical patent/DE893982C/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/02—Details
    • H01H33/28—Power arrangements internal to the switch for operating the driving mechanism
    • H01H33/30—Power arrangements internal to the switch for operating the driving mechanism using fluid actuator
    • H01H33/32—Power arrangements internal to the switch for operating the driving mechanism using fluid actuator pneumatic

Landscapes

  • Fluid-Driven Valves (AREA)

Description

Gegenstand der Erfindung ist ein Ventil für strömende Mittel bei elektrischen Schaltern, insbesondere Druckgasschaltern, welches mittels eines Kolbens vorzugsweise pneumatisch geöffnet wird und sich im wesentlichen unter der Wirkung des strömenden Mittels wieder schließt. Zum schnellen Aufstoßen des Ventils mittels des Kolbens entgegen, dem Druclc der zu steuernden Schalt- bzw. Blasluft ist ein großer Kraftüberschuß gegenüber dem Druck der Schaltluft erforderlich. Zur Offenhaltung des Ventils, dessen beweglicher Ventilkörper im Luftstrom schwimmt, wird dagegen nur eine geringe Kraft benötigt. Um das Ventil zu schließen, muß deshalb der Zylinderraum des Betätigungskolbens weitgehend entlüftet werden. Dieser Vorgang kann aber eine unerwünschte Verzögerung des Schließvorganges und unter Umständen ein unsicheres Schließen zur Folge haben.The invention relates to a valve for flowing means in electrical Switches, in particular compressed gas switches, which preferably by means of a piston is opened pneumatically and is essentially under the action of the flowing Closes again by means. For quick opening of the valve by means of the piston against the pressure of the switching or blowing air to be controlled is a large excess of force required compared to the pressure of the switching air. To keep the valve open, its Movable valve body floats in the air flow, however, only a small force is applied needed. In order to close the valve, the cylinder space of the actuating piston must therefore largely vented. However, this process can cause an undesirable delay the closing process and, under certain circumstances, result in unsafe closing.

Die Erfindung schlägt aus diesem Grunde- vor, einen Rückführungskolben vorzusehen, welcher die Schließbewegung des Ventils unter dem Einfiuß des strömenden Mittels unterstützt. Dieser Kolben wird: zweckmäßig auf dem Ventilstößel zwischen dem Ventilteller und dem Betätigungskolben angeordnet.For this reason, the invention proposes a return piston to provide which the closing movement of the valve under the influence of the flowing Supported by. This piston is: expediently on the valve stem between the valve disk and the actuating piston arranged.

Die Zeichnung zeigt ein Ausführungsbeispiel des Erfindungsgegenstandes.The drawing shows an exemplary embodiment of the subject matter of the invention.

In dem Ventilgehäuse i ist der Ventilteller 2 angeordnet, welcher mit dem festen Ventilsitz 3 zusammenwirkt. Das Ventil. dient zur Steuerung von Blas- bzw. Antriebsluft bei einem Druckgasschalter. Die zu steuernde Luft tritt in Richtung des Pfeiles q. ein und strömt in Richtung des Pfeiles 5 zum Schalter ab. Der Ventilteller wird durch den Stößel 6, der durch den Kolben 7 pneumatisch angetrieben wird, betätigt. Auf dem Ventilstößel ist der Rückführungskolben 9 angeordnet. Soll das Ventil geöffnet werden, so wird durch die Leitung 8 dem Kolben 7 Luft zugeführt. Dadurch wird der Tellere mittels des Stößels 6 vom Sitz 3 abgehoben. Hierbei, ist der Rückführungskolben 9 nicht hinderlich, weil sich im Schließzustand des Ventils in der Blasleitung io noch keine Druckluft befindet. Soll das Ventil geschlossen werden, so wird die Leitung 8 geöffnet. Die auf den Ventilteller :2 wirkende Druckluft bewirkt dadurch, gegebenenfalls unter Mitwirkung einer hier nicht gezeichneten Schließfeder, das Schließen des Ventils. Dieser Vorgang wird außerdem durch den Kolben 9, auf welchen die Druckluft nunmehr einwirkt, wesentlich unterstützt, so daß ein schnelles und sicheres Schließen des Ventils eintritt. Der zwischen dem Betätigungskolben 7 und dem Rückführungskolben 9 gelegene Raum des Ventilgehäuses steht über Entlüftungsöffnungen r r dauernd mit der Außenluft in Verbindung.In the valve housing i, the valve disk 2 is arranged, which cooperates with the fixed valve seat 3. The valve. is used to control blowing or drive air with a compressed gas switch. The air to be controlled occurs in the direction of the arrow q. and flows in the direction of arrow 5 to the switch. The valve disc is actuated by the plunger 6, which is pneumatically driven by the piston 7. The return piston 9 is arranged on the valve tappet. Should the valve open air is supplied to the piston 7 through the line 8. This will make the The plate is lifted off the seat 3 by means of the plunger 6. Here, is the return piston 9 not a hindrance because in the closed state of the valve in the blow line io there is no compressed air yet. If the valve is to be closed, the line will 8 open. The compressed air acting on the valve disk: 2 thereby causes, if necessary with the assistance of a closing spring, not shown here, the closing of the valve. This process is also through the piston 9, on which the compressed air now acts, significantly supported, so that a quick and safe closing of the Valve enters. The one between the actuating piston 7 and the return piston 9 located space of the valve housing is permanently with the ventilation openings r r the outside air in connection.

Claims (3)

PATENTANSPRÜCHE.: i. Ventil für strömende Mittel bei elektrischen Schaltern, insbesondere Druckgasschaltern, welches mittels eines Kolbens vorzugsweise pneumatisch geöffnet wird und sich im wesentlichen unter der Wirkung des strömenden Mittels wieder schließt, dadurch gekennzeichnet, daß ein Rückführungskolben (9) vorgesehen ' ist, welcher die Schließbewegung des Ventils unter dem Einfluß des strömenden Mittels unterstützt. CLAIMS: i. Valve for fluid in electric Switches, in particular compressed gas switches, which preferably by means of a piston is opened pneumatically and is essentially under the action of the flowing Closes again by means, characterized in that a return piston (9) 'is provided, which the closing movement of the valve under the influence of the flowing means supported. 2. Ventil nach Anspruch i, dadurch gekennzeichnet, daß .der Rückführungskolben (9) auf dem Ventilstößel (6) zwischen dem Ventilteller (2) und dem Betätigungskolben (7) angeordnet ist. 2. Valve according to claim i, characterized in that that .the return piston (9) on the valve stem (6) between the valve plate (2) and the actuating piston (7) is arranged. 3. Ventil nach Anspruch i und 2, dadurch gekennzeichnet, daß der zwischen dem Betätigungskolben (7) und dem Rückführungskolben (9) befindliche Raum des Ventilgehäuses durch Öffnungen (ii) mit der Außenluft in Verbindung steht.3. Valve according to claim i and 2, characterized in that the between the actuating piston (7) and the return piston (9) located space of the valve housing through openings (ii) with the outside air in Connection.
DEA7793D 1943-07-06 1943-07-06 Valve for flowing means in electrical switches, especially gas pressure switches Expired DE893982C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEA7793D DE893982C (en) 1943-07-06 1943-07-06 Valve for flowing means in electrical switches, especially gas pressure switches

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEA7793D DE893982C (en) 1943-07-06 1943-07-06 Valve for flowing means in electrical switches, especially gas pressure switches

Publications (1)

Publication Number Publication Date
DE893982C true DE893982C (en) 1953-10-22

Family

ID=6921343

Family Applications (1)

Application Number Title Priority Date Filing Date
DEA7793D Expired DE893982C (en) 1943-07-06 1943-07-06 Valve for flowing means in electrical switches, especially gas pressure switches

Country Status (1)

Country Link
DE (1) DE893982C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1118311B (en) * 1955-12-03 1961-11-30 Bbc Brown Boveri & Cie Device for pressure control of compressed air quick switches
DE1221333B (en) * 1960-02-10 1966-07-21 Bbc Brown Boveri & Cie Control valve for the supply of compressed air to the switching chambers of compressed air switches

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1118311B (en) * 1955-12-03 1961-11-30 Bbc Brown Boveri & Cie Device for pressure control of compressed air quick switches
DE1221333B (en) * 1960-02-10 1966-07-21 Bbc Brown Boveri & Cie Control valve for the supply of compressed air to the switching chambers of compressed air switches

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