DE1143114B - Compressed air supply system for dual-circuit compressed air braking systems, especially for road vehicles - Google Patents

Compressed air supply system for dual-circuit compressed air braking systems, especially for road vehicles

Info

Publication number
DE1143114B
DE1143114B DE1959K0039402 DEK0039402A DE1143114B DE 1143114 B DE1143114 B DE 1143114B DE 1959K0039402 DE1959K0039402 DE 1959K0039402 DE K0039402 A DEK0039402 A DE K0039402A DE 1143114 B DE1143114 B DE 1143114B
Authority
DE
Germany
Prior art keywords
compressed air
air
supply system
road vehicles
dual
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.)
Pending
Application number
DE1959K0039402
Other languages
German (de)
Inventor
Wilhelm Vahs
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 GmbH
Knorr Bremse AG
Original Assignee
KNORR BREMSE GmbH
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 GmbH, Knorr Bremse AG filed Critical KNORR BREMSE GmbH
Priority to DE1959K0039402 priority Critical patent/DE1143114B/en
Publication of DE1143114B publication Critical patent/DE1143114B/en
Pending legal-status Critical Current

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
    • B60T15/36Other control devices or valves characterised by definite functions
    • B60T15/48Other control devices or valves characterised by definite functions for filling reservoirs
    • 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
    • B60T15/36Other control devices or valves characterised by definite functions
    • B60T15/48Other control devices or valves characterised by definite functions for filling reservoirs
    • B60T15/50Other control devices or valves characterised by definite functions for filling reservoirs with means for limiting or relieving pressure in reservoirs

Landscapes

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

Description

Druckluftbeschaffungsanlage für Zweikreis-Druckluftbrernsanlagen, insbesondere von Straßenfahrzeugen Die Erfindung betrifft eine Druckluftbeschaffungsanlage für Zweikreis-Druckluftbremsanlagen, insbesondere von Straßenfahrzeugen, die mit einem Kompressor ausgestattet ist, welcher, gegebenenfalls unter Zwis@henschaltung eines Luftfilters und/oder einer Reifenfüllflasche, zwei je einem der Bremskreise zugeordnete Luftbehälter mit Druckluft versorgt.Compressed air procurement system for two-circuit compressed air burner systems, in particular of road vehicles The invention relates to a compressed air supply system for dual-circuit compressed air brake systems, especially for road vehicles that use is equipped with a compressor, which, if necessary, is interposed an air filter and / or a tire inflation bottle, two each to one of the brake circuits assigned air tank is supplied with compressed air.

Bisher war es bei derartigen Druckluftbeschaffungsanlagen üblich, jedem der Luftbehälter ein Rückschlagventil oder ein Überströmventil und beiden gemeinsam einen Druckregler vorzuschalten. Infolge des geringen Leitung-Luftvolumens zwischen Druckregler und Rückschlagventilen mußte, um zu kurze Schaltintervalle des Druckreglers zu vermeiden, dieses Luftvolumen durch einen zusätzlichen Luftbehälter vergrößert werden.Up to now, it has been common practice in such compressed air supply systems each of the air reservoirs has a check valve or an overflow valve and both jointly upstream a pressure regulator. As a result of the low volume of air in the pipe between pressure regulator and check valves had to have too short switching intervals of the pressure regulator to avoid this air volume through an additional air tank be enlarged.

Zur Vermeidung der hohen Aufwendungen für einen zusätzlichen Luftbehälter ist es bekannt, den Druckregler zu einem der beiden Rückschlagventile parallel zu schalten. Der diesem Rückschlagventil nachgeschaltete Luftbehälter dient dann zugleich als die Schaltintervalle des Druckreglers bestimmendes Luftvolumen.To avoid the high expenditure for an additional air tank it is known to connect the pressure regulator to one of the two check valves in parallel switch. The air reservoir connected downstream of this check valve then serves at the same time than the air volume that determines the switching intervals of the pressure regulator.

Auch bei der Verwendung von Überströmventilen ist kein zusätzlicher Luftbehälter erforderlich. Jedoch können Störungen infolge ungleichförmigen Arbeitens der Überströmventile auftreten.There is also no additional charge when using overflow valves Air reservoir required. However, malfunctions can occur as a result of uneven work the overflow valves occur.

Die Aufgabe der Erfindung besteht in der Schaffung einer einfachen und billigen Druckluft-Beschaffungsanlage der eingangs angeführten Art, und sie wird dadurch gelöst, daß erfindungsgemäß nur dem einen Luftbehälter ein Rückschlagventil und nur dem anderen ein Druckregler üblicher Bauart vorgeschaltet ist. Durch diese Maßnahme sind nur mehr ein Rückschlagventil und ein Druckregler zur Vorschaltung vor die Luftbehälter erforderlich, d. h., es wird im Vergleich zu den bekannten Anlagen zumindest ein Rückschlagventil bzw. ein Überströmventil eingespart.The object of the invention is to provide a simple one and cheap compressed air procurement system of the type mentioned, and they is achieved in that according to the invention only one air tank has a check valve and only the other is preceded by a pressure regulator of the usual type. Through this The only measures left are a non-return valve and a pressure regulator for upstream connection required in front of the air tanks, d. i.e., it will be compared to the known Systems saved at least one check valve or an overflow valve.

In der Zeichnung ist ein Ausführungsbeispiel der Erfindung schematisch dargestellt.An exemplary embodiment of the invention is shown schematically in the drawing shown.

Von einem Kompressor 1 führt eine Rohrleitung 3 über eine Reifenfüllflasche 5 zu einer Rohrverzweigung 7, von welcher sich ein Leitungsast 9 über ein sich in dieser Strömungsrichtung öffnendes Rückschlagventil 11 in den Luftbehälter 13 des einen, am Rohrstutzen 15 angeschlossenen Bremskreises erstreckt und von welcher ein zweiter Leitungsast 17 ausgeht, der über einen Druckregler 19 bekannter Bauart mit einem Luftbehälter 21 des zweiten, vermittels eines Rohrstutzens 23 angeschlossenen Bremskreises verbunden ist.From a compressor 1, a pipe 3 leads via a tire filling bottle 5 to a pipe branch 7, from which a branch 9 extends via a check valve 11 that opens in this flow direction into the air reservoir 13 of the one brake circuit connected to the pipe socket 15 and from which a second one Line branch 17 goes out, which is connected via a pressure regulator 19 of known type to an air reservoir 21 of the second brake circuit connected by means of a pipe socket 23.

Der Kompressor 1 fördert während eines Arbeitsintervalles Druckluft über die Rohrleitung 3, die Reifenfüllflasche 5 und weiter über die Leitungen 9 und 17 sowie das Rückschlagventil 11 bzw. den Druckregler 19 in die Luftbehälter 13 und 21. Sobald im Luftbehälter 21 ein genügend hoher Druck herrscht, schaltet der Druckregler 19 um, so daß der Leitungszweig 17 unter Absperrung des Luftbehälters 21 mit der Außenluft verbunden wird und der Kompressor 1 die angesaugte Luft wieder ins Freie fördert. Nach entsprechender Druckabsenkung im Luftbehälter 21 durch Luftverbrauch oder Entlüftung über die im Druckregler befindliche Entlüftungsdüse sperrt der Druckregler die Entlüftung des Leitungszweiges 17 wieder ab, so daß erneut Druckluft in die Behälter 13 und 21 gefördert wird. Von geringen Unregelmäßigkeiten infolge unterschiedlicher Strömungswiderstände abgesehen-, erhält dabei der den niedrigeren Druck aufweisende Luftbehälter anfänglich den größten Teil der geförderten Druckluft, so daß sich die Drücke der beiden Luftbehälter zuerst einander angleichen und erst anschließend gemeinsam bis zum oheren Grenzdruck steigen, woraufhin der Druckregler 19 die Druckluftförderung wieder unterbricht. Diese geschilderten Arbeitsgänge wiederholen sich ständig.During a working interval, the compressor 1 conveys compressed air via the pipe 3, the tire inflation bottle 5 and further via the lines 9 and 17 as well as the check valve 11 or the pressure regulator 19 into the air tanks 13 and 21. As soon as there is a sufficiently high pressure in the air tank 21, the pressure regulator 19 switches over, so that the line branch 17 is connected to the outside air with the air tank 21 being shut off and the compressor 1 conveys the sucked air back into the open. After the pressure in the air reservoir 21 has been reduced accordingly by air consumption or venting via the vent nozzle located in the pressure regulator, the pressure regulator blocks the venting of the branch pipe 17 again, so that compressed air is fed into the receptacles 13 and 21 again. Apart from minor irregularities as a result of different flow resistances, the air tank with the lower pressure initially receives most of the compressed air so that the pressures of the two air tanks first equalize and only then rise together to the upper limit pressure, whereupon the pressure regulator 19 the compressed air supply is interrupted again. These operations are repeated over and over again.

Claims (1)

PATENTANSPRUCH: Druckluftbeschaffungsanlage für Zweikreis-Druckluftbremsanlagen, insbesondere von Straßenfahrzeugen, mit einem Kompressor, welcher, gegebenenfalls unter Zwischenschaltung eines Luftfilters und/oder einer Reifenfüllflasche, zwei je einem der Bremskreise zugeordnete Luftbehälter mit Druckluft versorgt, dadurch gekennzeichnet, daß nur dem einen Luftbehälter (13) ein Rückschlagventil (11) und dem anderen (21) ein Druckregler(19) üblicher Bauart vorgeschaltet ist. In Betracht gezogene Druckschriften: Deutsche Patentschriften Nr. 703 868, 868 259; britische Patentschrift Nr. 817 6 34. PATENT CLAIM: Compressed air supply system for two-circuit compressed air brake systems, in particular for road vehicles, with a compressor which, if necessary with the interposition of an air filter and / or a tire filling bottle, supplies two air tanks assigned to one of the brake circuits with compressed air, characterized in that only one air tank (13 ) a check valve (11) and the other (21) a pressure regulator (19) of conventional design is connected upstream. Considered publications: German Patent Specifications Nos. 703 868, 868 259; British Patent No. 817 6 34.
DE1959K0039402 1959-12-11 1959-12-11 Compressed air supply system for dual-circuit compressed air braking systems, especially for road vehicles Pending DE1143114B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE1959K0039402 DE1143114B (en) 1959-12-11 1959-12-11 Compressed air supply system for dual-circuit compressed air braking systems, especially for road vehicles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1959K0039402 DE1143114B (en) 1959-12-11 1959-12-11 Compressed air supply system for dual-circuit compressed air braking systems, especially for road vehicles

Publications (1)

Publication Number Publication Date
DE1143114B true DE1143114B (en) 1963-01-31

Family

ID=600900

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1959K0039402 Pending DE1143114B (en) 1959-12-11 1959-12-11 Compressed air supply system for dual-circuit compressed air braking systems, especially for road vehicles

Country Status (1)

Country Link
DE (1) DE1143114B (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE703868C (en) * 1940-03-16 1941-03-18 Knorr Bremse Akt Ges Monitoring device for air brakes of motor vehicles
DE868259C (en) * 1947-08-29 1953-02-23 Giesserei A G Switching device for air brakes
GB817634A (en) * 1956-02-24 1959-08-06 Westinghouse Brake & Signal Dual fluid pressure braking systems for front and rear vehicle wheels or tractor/trailer vehicles

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE703868C (en) * 1940-03-16 1941-03-18 Knorr Bremse Akt Ges Monitoring device for air brakes of motor vehicles
DE868259C (en) * 1947-08-29 1953-02-23 Giesserei A G Switching device for air brakes
GB817634A (en) * 1956-02-24 1959-08-06 Westinghouse Brake & Signal Dual fluid pressure braking systems for front and rear vehicle wheels or tractor/trailer vehicles

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