DE851822C - Air shut-off valve for railway brake lines - Google Patents

Air shut-off valve for railway brake lines

Info

Publication number
DE851822C
DE851822C DEK979D DEK0000979D DE851822C DE 851822 C DE851822 C DE 851822C DE K979 D DEK979 D DE K979D DE K0000979 D DEK0000979 D DE K0000979D DE 851822 C DE851822 C DE 851822C
Authority
DE
Germany
Prior art keywords
valve
air shut
brake lines
railway brake
shut
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
DEK979D
Other languages
German (de)
Inventor
Ernst Dr Moeller
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.)
Knorr Bremse AG
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
Priority to DEK979D priority Critical patent/DE851822C/en
Application granted granted Critical
Publication of DE851822C publication Critical patent/DE851822C/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
    • B60T17/04—Arrangements of piping, valves in the piping, e.g. cut-off valves, couplings or air hoses
    • B60T17/043—Brake line couplings, air hoses and stopcocks

Landscapes

  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Valves And Accessory Devices For Braking Systems (AREA)

Description

Die Erfindung betrifft einen Luftabsperrhahn für Eisenbahnbremsleitungen, bei dem ein axial verschiebbares Doppelventil vorhanden ist, dessen eine Seite zum Absperren der Bremsleitung dient und dessen andere Seite in der Durchgangsstellung die Entlüftungsbohrung der Schlauchleitung absperrt.The invention relates to an air shut-off valve for railway brake lines, in which there is an axially displaceable double valve, one side of which is for Shut off the brake line and its other side in the through position the vent hole of the hose line closes off.

Bei diesem auf russischen Bahnen gebräuchlichen Hahn besteht der Nachteil, daß die Entlüftungsbohrung sofort bei Beginn der Absperrbewegung freigelegt wird, so daß insbesondere bei langsamer Betätigung unerwünschte Luftverluste entstehen und unter Umständen sogar die Bremsen ansprechen.This tap, which is common on Russian railways, has the disadvantage that the vent hole is exposed immediately at the start of the shut-off movement, so that undesirable air losses occur, especially when the device is operated slowly and possibly even apply the brakes.

Es ist der Zweck der Erfindung, diesem Übelstand durch verzögertes Wirksamwerden der Entlüftung entgegenzutreten.It is the purpose of the invention to delay this drawback To counteract the venting.

Wie aus der Zeichnung hervorgeht, die den Hahn im Schnitt zeigt, befindet sich in dem Gehäuse i mit den Anschlußstutzen 2 für die Bremsleitung und 3 für die Schlauchleitung das Doppelventil 4, 5. Die Axialverschiebung wird durch einen Exzenterzapfen 6 bewirkt, der in eine Aussparung des Ventilschaftes 8 eingreift und der nach außen in einen Vierkant 7 übergeht, auf dem ein Handgriff steckt. Die strichpunktiert eingezeichnete, bisherige Entlüftungsbohrung ist mit 9 bezeichnet.As can be seen from the drawing, which shows the tap in section, is located in the housing i with the connection piece 2 for the brake line and 3 for the Hose line the double valve 4, 5. The axial displacement is achieved by an eccentric pin 6 causes which engages in a recess of the valve stem 8 and the outside merges into a square 7 on which a handle is located. The dash-dotted line Drawn in, previous vent hole is denoted by 9.

Wie ohne weiteres ersichtlich, gibt bei der Bewegung des Hahnes aus der gezeichneten Durchgangsstellung in die Sperrstellung das Ventil 4 sofort die Entlüftungsbohrung 9 frei.As can be seen without further ado, outputs when the tap is moved the illustrated passage position in the blocking position, the valve 4 immediately the Vent hole 9 free.

Erfindungsgemäß wird daher eine Entlüftungsbohrung io vorgesehen, die nicht mehr in den Ventilraum mündet. Erst kurz vor dem Absperren der Bremsleitung durch das Ventil s erreicht eine Aussparung oder Nut ii im Ventilschaft 8 den Ventilraum. Daher bleiben auch bei langsamer Bedienung des Hahnes Luftverluste über die Bohrung io infolge der geringen Lässigkeit zwischen Ventilschaft 8 und Gehäuse i bedeutungslos.According to the invention, a ventilation hole is therefore provided, which no longer opens into the valve chamber. Just before shutting off the brake line through the valve s a recess or groove ii in the valve stem 8 reaches the valve chamber. Therefore, even when the tap is operated slowly, air leaks through the bore io meaningless due to the low level of leakage between valve stem 8 and housing i.

Claims (2)

PATENT-NSPRÜCHE: i. Luftabsperrhahn für Eisenbahnbremsleitungen mit axial verschiebbarem Doppelventil, dadurch gekennzeichnet, daß die Entlüftungsbohrung (io) für die Schlauchleitung bei in Sperrstellung befindlichem Hahn über eine Aussparung (ii) od. dgl. im Ventilschaft (8) mit dem Ventilraum verbunden ist. PATENT CLAIMS: i. Air shut-off valve for railway brake lines with axially displaceable double valve, characterized in that the vent hole (io) for the hose line via a recess when the cock is in the locked position (ii) or the like in the valve stem (8) is connected to the valve chamber. 2. Luftabsperrhahn nach Anspruch i, dadurch gekennzeichnet, daß die Aussparung (ii) od. dgl. derart im Ventilschaft angeordnet ist, daß sie den Ventilraum erst kurz vor dem Absperren des Stutzens (2) durch das Ventil (5) erreicht.2. Air shut-off valve according to claim i, characterized in that the recess (ii) or the like is arranged in the valve stem that it opens the valve chamber just before it is shut off of the nozzle (2) is reached through the valve (5).
DEK979D 1943-12-11 1943-12-11 Air shut-off valve for railway brake lines Expired DE851822C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEK979D DE851822C (en) 1943-12-11 1943-12-11 Air shut-off valve for railway brake lines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEK979D DE851822C (en) 1943-12-11 1943-12-11 Air shut-off valve for railway brake lines

Publications (1)

Publication Number Publication Date
DE851822C true DE851822C (en) 1952-10-09

Family

ID=7208689

Family Applications (1)

Application Number Title Priority Date Filing Date
DEK979D Expired DE851822C (en) 1943-12-11 1943-12-11 Air shut-off valve for railway brake lines

Country Status (1)

Country Link
DE (1) DE851822C (en)

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