NO794197L - PRESSURE REGULATOR FOR A LINING VALVE IN AN INDIRECT EFFECTIVE PRESSURE BRAKE - Google Patents

PRESSURE REGULATOR FOR A LINING VALVE IN AN INDIRECT EFFECTIVE PRESSURE BRAKE

Info

Publication number
NO794197L
NO794197L NO794197A NO794197A NO794197L NO 794197 L NO794197 L NO 794197L NO 794197 A NO794197 A NO 794197A NO 794197 A NO794197 A NO 794197A NO 794197 L NO794197 L NO 794197L
Authority
NO
Norway
Prior art keywords
pressure
spring
piston
brake
pressure regulator
Prior art date
Application number
NO794197A
Other languages
Norwegian (no)
Inventor
Riet Thoeny
Solobodan Sbrinovic
Original Assignee
Oerlikon Buehrle 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=4198087&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=NO794197(L) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Oerlikon Buehrle Ag filed Critical Oerlikon Buehrle Ag
Publication of NO794197L publication Critical patent/NO794197L/en

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60TVEHICLE 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
    • B60T15/00Construction arrangement, or operation of valves incorporated in power brake systems and not covered by groups B60T11/00 or B60T13/00
    • B60T15/02Application and release valves
    • B60T15/04Driver's valves
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B61RAILWAYS
    • B61HBRAKES OR OTHER RETARDING DEVICES SPECIALLY ADAPTED FOR RAIL VEHICLES; ARRANGEMENT OR DISPOSITION THEREOF IN RAIL VEHICLES
    • B61H13/00Actuating rail vehicle brakes

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • Braking Systems And Boosters (AREA)
  • Braking Arrangements (AREA)
  • Control Of Fluid Pressure (AREA)
  • Medicines That Contain Protein Lipid Enzymes And Other Medicines (AREA)
  • Navigation (AREA)
  • Position Fixing By Use Of Radio Waves (AREA)
  • Valves And Accessory Devices For Braking Systems (AREA)

Abstract

1. A pressure controller for a driver's brake valve of a indirectly-acting compressed air brake comprising a pressure control valve (17, 18, 19) which is connected to a compressed air supply line (11) and which is actuated by a piston (21), limiting two chambers (30, 33), the piston (21) being selected subjected on one side to control pressure and on the other side to the force exerted by an adjustable control spring (23) which is actuated by a driver's brake lever (35) characterized by a second spring (32) in the other chamber (33) in addition to the control spring (23), the second spring (32) on one side also rests against the piston (21) and on the other side is stationary supported in the chamber (33).

Description

Trykkregulator for en foringsbremseventil i en indirekte virkende trykkluftbremse. Pressure regulator for a lining brake valve in an indirectly acting compressed air brake.

Oppfinnelsen vedrorer en trykkregulator for en foringsbremseventil i en indirekte virkende trykkluftbremse, med en til en mateledning koblet trykkreguleringsventil som er betjenbar av et stempel som på den ene side er belastet med innstillbar reguleringsfjær og på den annen side påvirkes av reguleringstrykket. The invention relates to a pressure regulator for a liner brake valve in an indirectly acting compressed air brake, with a pressure regulation valve connected to a supply line which is operated by a piston which is loaded on one side with an adjustable regulation spring and on the other side is affected by the regulation pressure.

Det er kjent en trykkregulator av denne art (CH-PS 344.749) ved hvilken stempelet på den.ene side er belastet, av reguleringstrykket og på den annen side av atmosfæretryk-ket og av en innstillbar reguleringsfjær. A pressure regulator of this kind is known (CH-PS 344,749) in which the piston is loaded on the one side by the regulation pressure and on the other side by the atmospheric pressure and by an adjustable regulation spring.

Denne utforming av trykkregulatoren har den ulempe at det er påkrevd med forholdsvis store og sterke reguler-ingsf jær, f.eks. krever et reguleringstrykk på 5 bar fjær-krefter på omtrent 50 kg. This design of the pressure regulator has the disadvantage that relatively large and strong regulating springs are required, e.g. requires a regulation pressure of 5 bar spring forces of approximately 50 kg.

Den oppgave som ligger til grunn for oppfinnelsen er å utforme trykkregulatoren således at det kan brukes vesentlig mindre reguleringsfjær. The task underlying the invention is to design the pressure regulator in such a way that a substantially smaller regulating spring can be used.

Trykkregulatoren ifblge oppfinnelsen erkarakterisert vedat en andre fjær belaster stempelet i tillegg til den innstillbare reguleringsfjær. The pressure regulator according to the invention is characterized by a second spring loading the piston in addition to the adjustable regulating spring.

Oppfinnelsen skal i det folgende nærmere forklares ved hjelp av et utfbrelseseksempel som er fremstilt på tegningen som viser trykkregulatoren i henhold til oppfinnelsen skjematisk. In the following, the invention will be explained in more detail with the help of an exemplary embodiment which is shown in the drawing which shows the pressure regulator according to the invention schematically.

Ifolge tegningen er en trykkbegrensningsanordning 10 koblet til en mateledning 11, og et hovedstyreorgan 12 According to the drawing, a pressure limiting device 10 is connected to a feed line 11, and a main control device 12

er koblet til en hovedluftledning 13. En trykkregulator 14 er koblet på den ene side via en grenledning 15 til en trykkbegrensningsanordning 10 og på den annen side via en annen is connected to a main air line 13. A pressure regulator 14 is connected on the one hand via a branch line 15 to a pressure limiting device 10 and on the other hand via another

grenledning 16 til hovedstyreorganet 12. Trykkregulatoren 14 har en trykkreguleringsventil som dannes av en ventiltaller-ken 17 som på den ene side samvirker med et stasjonært ventilsete 18 og på den annen side med et bevegelig ventilsete 19. Det bevegelige ventilsete 19 befinner seg ved enden av en stempelstang 20 som er festet til et stempel 21. En regu-leringsf jær 23 avstotter seg på den ene side mot stempelet 21 og på den annen side mot en stotstang 22. Denne stotstang 22 trykkes ved hjelp av reguleringsfjæren 23, inn-stillbart ved hjelp av et hode 24 som forskyvbart er festet til stotstangen 22, mot en kamskive 25 som er festet på en dreibart opplagret aksel 26. En foringsbremsearm 35 er festet til akselen 26 og tjener til betjening av den beskrevne trykkregulator 14. Ventiltallerkenen 17 har en ventilasjonsboring 27 og er festet til stempelet 28. Et ovre kammer 29 som er begrenset av dette stempel 28, samt et fbrste kammer 30, mellom ventiltallerkenen; 17 og stempelet 21, er forbundet med hovedstyreorganet 12 via grenledningen 16. Et andre kammer 31, mellom det ovre stempel 28 og ventiltallerkenen 17, er forbundet med trykkbegrensningsanordningen 10 via grenledningen 15. Et nedenfor stempelet 21 anordnet nedre kammer 33 er via en åpning 34 forbundet med atmosfæren.. Endelig er det i henhold til oppfinnelsen i det nedre kammer 33 en andre fjær 32 som er anordnet mellom stempelet 21 og en ring 36 som fortrinnsvis er utformet innstillbar. Fordi reguleringsfjæren 23 og den andre fjær 32 i fellesskap virker inn på stempelet, kan hver av disse fjær dimensjoneres mindre. branch line 16 to the main control body 12. The pressure regulator 14 has a pressure control valve which is formed by a valve disc 17 which on the one hand cooperates with a stationary valve seat 18 and on the other hand with a movable valve seat 19. The movable valve seat 19 is located at the end of a piston rod 20 which is attached to a piston 21. A control spring 23 rests on one side against the piston 21 and on the other side against a push rod 22. This push rod 22 is pressed with the help of the control spring 23, adjustable by by means of a head 24 which is displaceably attached to the support rod 22, against a cam disc 25 which is attached to a rotatably supported shaft 26. A lining brake arm 35 is attached to the shaft 26 and serves to operate the described pressure regulator 14. The valve plate 17 has a ventilation bore 27 and is attached to the piston 28. An upper chamber 29 which is limited by this piston 28, as well as a first chamber 30, between the valve disc; 17 and the piston 21, are connected to the main control body 12 via the branch line 16. A second chamber 31, between the upper piston 28 and the valve disc 17, is connected to the pressure limiting device 10 via the branch line 15. A lower chamber 33 arranged below the piston 21 is via an opening 34 connected to the atmosphere. Finally, according to the invention, in the lower chamber 33 there is a second spring 32 which is arranged between the piston 21 and a ring 36 which is preferably designed to be adjustable. Because the regulating spring 23 and the second spring 32 jointly act on the piston, each of these springs can be dimensioned smaller.

Virkemåten til den beskrevne trykkregulator er som folger. The operation of the described pressure regulator is as follows.

Trykkbegrensningsanordningen 10 sorger for at den fra mateledningen 11 uttatte trykkluft alltid har en mest mulig konstant verdi, f.eks. 5 bar, dvs. det hersker således alltid et konstant trykk i det andre kammer 31. The pressure limiting device 10 ensures that the compressed air extracted from the supply line 11 always has a constant value as possible, e.g. 5 bar, i.e. there is thus always a constant pressure in the second chamber 31.

Ved fullstendig frigjort bremse hersker også i hovedluftledningen 13 det maksimalt tillatte trykk på 5 bar. For oppnåelse av dette trykk må hovedstyreorganet 12 kunne styre dette inn i hovedluftledningen 13. Dette trykk på 5 bar må derfor også herske i grenledningen 16, i det ovre kam mer 29 samt i det fbrste kammer 30 ovenfor stempelet 21. For at det med disse trykkforhold ikke skal kunne unnvike noen trykkluft fra det fbrste kammer 30 gjennom ventiltallerkenens 17 boring 27 og ut i atmosfæren, må reguleringsfjæren 23 for-spennes tilsvarende sterkt for understøttelse av den andre fjær 32. Denne forspenning oppnås ved at kamskiven 25 svinges i frigjoringsstilling ved hjelp av fbringsbremsearmen 35. When the brake is fully released, the maximum permissible pressure of 5 bar also prevails in the main air line 13. To achieve this pressure, the main control body 12 must be able to control this into the main air line 13. This pressure of 5 bar must therefore also prevail in the branch line 16, in the upper chamber 29 and in the first chamber 30 above the piston 21. So that with these pressure conditions must not be able to escape some compressed air from the first chamber 30 through the bore 27 of the valve plate 17 and out into the atmosphere, the regulating spring 23 must be pre-tensioned correspondingly strongly to support the second spring 32. This pre-tensioning is achieved by swinging the cam disc 25 into the release position using of the brake lever 35.

For oppbremsing må trykket i hovedluftledningen 13 senkes. Fbringsbremsearmen 35 svinges svarende til det bnskede bremsetrinn og derved avspennes reguleringsfjæren 23. Således reduseres den kraft som virker på stempelet 21, hvorved stempelet 21 senkes. Fra kammeret 30 kan luft gjennom boringen 27 unnvike ut i atmosfæren. Trykketrl kammeret 30 vil derfor senkes helt til det igjen er balanse mellom de krefter, som ovenfra og nedenfra virker inn på stempelet 21. Også trykket i hovedluftledningen 13 vil synke tilsvarende . For braking, the pressure in the main air line 13 must be lowered. The brake lever 35 is swung corresponding to the required brake step and thereby the regulating spring 23 is relaxed. Thus, the force acting on the piston 21 is reduced, whereby the piston 21 is lowered. From the chamber 30, air through the bore 27 can escape into the atmosphere. The pressure chamber 30 will therefore be lowered until there is again a balance between the forces acting on the piston 21 from above and below. The pressure in the main air line 13 will also decrease accordingly.

For frigjbring av bremsen må trykket i hovedluftledningen 13 bkes. Fbringsbremsearmen 35 svinges svarende til det bnskede frigjbringstrinn og derved spennes reguler-ingsf jæren 23. Således bkes den kraft som virker på stempelet 21 hvorved stempelet 21 lbftes. Ventiltallerkenen 17 lbftes fra sitt sete 18, og trykkluft strbmmer fra det andre kammer 31 inn i det fbrste kammer 30. Trykket i kammeret 30 vil derfor stige til det igjen er balanse mellom de krefter som ovenfra og nedenfra virker på stempelet 21. Også trykket i hovedluftledningen 13 vil oke tilsvarende. To release the brake, the pressure in the main air line 13 must be released. The release brake arm 35 is swung corresponding to the desired release step and thereby the regulating spring 23 is tensioned. Thus, the force acting on the piston 21 is reduced whereby the piston 21 is lifted. The valve disc 17 is lifted from its seat 18, and compressed air flows from the second chamber 31 into the first chamber 30. The pressure in the chamber 30 will therefore rise until there is again a balance between the forces acting on the piston 21 from above and below. Also the pressure in the main air line 13 will increase accordingly.

Ved hjelp av fagmessig konstruktiv modifikasjon vil det valgvis kunne brukes strekkfjær i stedet for de to trykkfjær 23 og 32 i henhold til utfbrelseseksempelet. With the help of specialist constructive modification, tension springs can optionally be used instead of the two compression springs 23 and 32 according to the design example.

Claims (3)

1. Trykkregulator for en f brings.bremseventil i en indirekte virkende trykkluftbremse, med en til en mateledning koblet trykkreguleringsventil som er betjenbar av et stempel som på den ene side er belastet med en innstillbar reguleringsfjær og på den annen side påvirkes av regulerings-1. Pressure regulator for a brake valve in an indirect acting compressed air brake, with a pressure regulation valve connected to a supply line which is operated by a piston which is loaded on one side with an adjustable regulation spring and on the other side is affected by regulation trykket, karakterisert ved at en andre fjær (32) belaster stempelet (21) i tillegg til den innstillbare reguleringsfjær (23). the pressure, characterized in that a second spring (32) loads the piston (21) in addition to the adjustable regulating spring (23). 2. Trykkregulator ifblge krav 1, karakterisert ved at fastgjbringen for den andre fjær (32) er utformet innstillbar. 2. Pressure regulator according to claim 1, characterized in that the fastening for the second spring (32) is designed to be adjustable. 3. Trykkregulator ifblge krav 1 eller 2, k a r a.T c-terisert ved at reguleringsfjæren (23) og den andre fjær (32) valgvis er utformet som trykk- eller strekk- <f> jær.3. Pressure regulator according to claim 1 or 2, characterized in that the regulating spring (23) and the second spring (32) are optionally designed as compression or tension springs.
NO794197A 1979-01-31 1979-12-20 PRESSURE REGULATOR FOR A LINING VALVE IN AN INDIRECT EFFECTIVE PRESSURE BRAKE NO794197L (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH91379 1979-01-31

Publications (1)

Publication Number Publication Date
NO794197L true NO794197L (en) 1980-08-01

Family

ID=4198087

Family Applications (1)

Application Number Title Priority Date Filing Date
NO794197A NO794197L (en) 1979-01-31 1979-12-20 PRESSURE REGULATOR FOR A LINING VALVE IN AN INDIRECT EFFECTIVE PRESSURE BRAKE

Country Status (6)

Country Link
EP (1) EP0014486B1 (en)
AT (1) ATE1770T1 (en)
DE (1) DE3061045D1 (en)
FI (1) FI63995C (en)
NO (1) NO794197L (en)
PL (1) PL221650A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2045213T3 (en) * 1988-03-15 1994-01-16 Oerlikon Knorr Eisenbahntech BRAKE VALVE, ESPECIALLY A CONDUCTOR BRAKE VALVE AND A LOAD DEPENDENT BRAKE VALVE, TO GOVERN A PRESSURE IN THE BRAKE DUCT.

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1155470B (en) * 1960-06-11 1963-10-10 Knorr Bremse Gmbh Driver brake valve device for air brakes of rail vehicles
DE1146520B (en) * 1960-07-08 1963-04-04 Westinghouse Bremsen Gmbh Self-regulating driver brake valve for compressed air brake devices of rail vehicles

Also Published As

Publication number Publication date
EP0014486A1 (en) 1980-08-20
DE3061045D1 (en) 1982-12-16
FI63995B (en) 1983-05-31
ATE1770T1 (en) 1982-11-15
PL221650A1 (en) 1980-10-20
FI63995C (en) 1983-09-12
FI794089A (en) 1980-08-01
EP0014486B1 (en) 1982-11-10

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