DE141255C - - Google Patents
Info
- Publication number
- DE141255C DE141255C DENDAT141255D DE141255DA DE141255C DE 141255 C DE141255 C DE 141255C DE NDAT141255 D DENDAT141255 D DE NDAT141255D DE 141255D A DE141255D A DE 141255DA DE 141255 C DE141255 C DE 141255C
- Authority
- DE
- Germany
- Prior art keywords
- lines
- brakes
- braking
- line
- train
- 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.)
- Active
Links
- 238000009413 insulation Methods 0.000 claims description 3
- 230000001052 transient Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 description 2
- 230000003137 locomotive Effects 0.000 description 2
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
- B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
- B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
- B60T13/66—Electrical control in fluid-pressure brake systems
- B60T13/665—Electrical control in fluid-pressure brake systems the systems being specially adapted for transferring two or more command signals, e.g. railway systems
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Braking Systems And Boosters (AREA)
Description
KAISERLICHESIMPERIAL
PATENTAMT.PATENT OFFICE.
Bei elektrisch und durch Luftdruck gesteuerten Luftbremsen, deren elektrisch gesteuerte Bremsventile zwischen zwei den Zug entlang geführten Steuerleitungen liegen und durch Schalter bedient werden, welche zwischen eine dieser Steuerleitungen und eine den Zug entlang geführte dritte Leitung geschaltet sind, nimmt der Übergangswiderstand (Widerstand bei geöffneten Schaltern) bei VermehrungIn the case of electrically and air-pressure controlled air brakes, their electrically controlled Brake valves are located between two control lines that run along the train and are operated by switches, which are between one of these control lines and a third line guided along the train are switched the contact resistance (resistance when the switches are open) increases as it increases
ίο der Schalter ab.ίο the switch off.
Wenn der bei etwa vorhandenen Isolationsfehlern über diese Übergangswiderstände fließende Strom auch nicht imstande ist, die Anker der Bremsventile anzuheben, so wird derselbe doch unter Umständen genügen, um diese Anker nach dem Unterbrechen des Stromes festzuhalten, wodurch ein Abstufen der Bremswirkung sowie ein Lösen der Bremsen unmöglich gemacht wird.If, in the event of any insulation faults, this flows over these contact resistances If the current is also unable to lift the armature of the brake valves, it will may be sufficient to hold these armatures in place after the current is interrupted, which results in a gradation of the braking effect as well as releasing the brakes is made impossible.
Dieser Mangel wird gemäß vorliegender Erfindung dadurch vermieden, daß der auf der Lokomotive liegende, zum Anziehen der Bremse dienende elektrische Schalter nach Unterbrechung des Bremsstromes die Leitungen, zwisehen welchen die Bremsventile liegen, unmittelbar miteinander verbindet.This deficiency is avoided according to the present invention in that the on the Electric switch located on the locomotive and used to apply the brake after an interruption of the braking current, the lines between which the brake valves are located, directly connects with each other.
In der Anlage ist eine Ausführungsform der Erfindung schematisch dargestellt.An embodiment of the invention is shown schematically in the system.
Die drei den Zug entlang geführten elekirischen Leitungen a, b, c sind mit der Stromquelle d, den an den Fahrzeugen vorgesehenen Handschaltern e, den Bremsventilen / und dem am Führerbremshahn angebrachten elektrischen Steuerschalter g verbunden.The three electrical lines a, b, c that run along the train are connected to the power source d, the manual switches e provided on the vehicles, the brake valves / and the electrical control switch g attached to the driver's brake valve.
Der Schalter g besitzt drei Stellungen:The switch g has three positions:
In der Stellung I (Fahrstellung) ist die Leitung α dauernd an die Stromquelle d angeschlossen. Eine Bremsung ist in dieser Stellung nur möglich, wenn einer der auf den Fahrzeugen befindlichen Handschalter e geschlossen wird.In the position I (driving position) the line α is permanently connected to the power source d . Braking is only possible in this position if one of the manual switches e on the vehicles is closed.
In der Stellung III (von der Lokomotive aus eingeleitete Bremsung) wird die Leitung c unmittelbar an die Stromquelle d angeschlossen, während der Führerbremshahn die Hauptluftleitung abschließt.In position III (braking initiated by the locomotive), line c is connected directly to power source d, while the driver's brake cock closes the main air line.
In Stellung II tritt eine Änderung des Bremszustandes nicht ein; in derselben ist die Leitung c von der Stromquelle d abgeschaltet und mit der Leitung b unmittelbar verbunden. Die Hauptluftleitung ist auch in dieser Stellung durch den Führerbremshahn abgeschlossen.In position II there is no change in the braking state; in the same, the line c is disconnected from the current source d and directly connected to the line b. The main air line is also closed in this position by the driver's brake valve.
Durch das Kurzschließen der beiden Leitungen b und c wird verhindert, daß der infolge von Isolationsfehlern von α nach b fließende Strom seinen Weg durch die Steuerventile nimmt. Es kann somit ein Klebenbleiben der Anker bei Unterbrechung des Bremsstromes nicht eintreten und es ist ein beliebig feines Abstufen der Bremswirkung, also auch ein Lösen der Bremsen, sichergestellt.By short-circuiting the two lines b and c , the current flowing from α to b as a result of insulation faults is prevented from making its way through the control valves. The armature cannot stick when the braking current is interrupted, and any fine gradation of the braking effect, i.e. also the release of the brakes, is ensured.
Der Gegenstand der Erfindung ist auch für andere Luftbremsen verwendbar.The subject matter of the invention can also be used for other air brakes.
Claims (1)
Publications (1)
Publication Number | Publication Date |
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DE141255C true DE141255C (en) |
Family
ID=408888
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DENDAT141255D Active DE141255C (en) |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE141255C (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1192229B (en) * | 1959-07-28 | 1965-05-06 | Westinghouse Freins & Signaux | Electropneumatic driver brake valve device, especially for rail vehicles |
-
0
- DE DENDAT141255D patent/DE141255C/de active Active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1192229B (en) * | 1959-07-28 | 1965-05-06 | Westinghouse Freins & Signaux | Electropneumatic driver brake valve device, especially for rail vehicles |
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