DE205852C - - Google Patents
Info
- Publication number
- DE205852C DE205852C DENDAT205852D DE205852DA DE205852C DE 205852 C DE205852 C DE 205852C DE NDAT205852 D DENDAT205852 D DE NDAT205852D DE 205852D A DE205852D A DE 205852DA DE 205852 C DE205852 C DE 205852C
- Authority
- DE
- Germany
- Prior art keywords
- brake
- control valve
- piston
- channel
- compressed air
- 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
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000001404 mediated Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
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
- B60T17/08—Brake cylinders other than ultimate actuators
- B60T17/10—Two or more cylinders acting on the same brake with means for rendering them effective selectively or successively, the number of effective cylinders being variable
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Valves And Accessory Devices For Braking Systems (AREA)
Description
KAISERLICHESIMPERIAL
PATENTAMT.PATENT OFFICE.
Die Erfindung bezieht sich auf eine Zweikammer-Druckluftbremse. Gemäß der Erfindung ist die Einrichtung derartig getroffen, daß mit dem Bremskolben ein Hilfsbremskolben in starrer Verbindung steht, dessen Druckkammer beim Anstellen der Bremse unter Vermittlung des Steuerventils derart mit dem Totraum des Bremszylinders verbunden wird, daß die aus letzterem in dieThe invention relates to a two-chamber air brake. According to the invention the device is made such that an auxiliary brake piston with the brake piston is in rigid connection, the pressure chamber of which when the brake is applied, mediated by the control valve is connected to the dead space of the brake cylinder that the latter into the
ίο Druckkammer übertretende Luft zur Verstärkung des Bremsdruckes herangezogen wird. Beim Lösen der Bremse wird die Druckkammer zwecks ihrer Entlüftung durch das Steuerventil mit der Außenluft verbunden.ίο Air passing through the pressure chamber for reinforcement the brake pressure is used. When the brake is released, the pressure chamber is connected to the outside air through the control valve for the purpose of venting them.
Dadurch wird eine äußerst günstige Ausnutzung der zur Verfügung stehenden Druckluft erzielt.This means that the available compressed air is used extremely efficiently achieved.
Mit dem Kolben α steht der Hilfsbremskolben b durch die Kolbenstange c in starrer Verbindung.The auxiliary brake piston b is in rigid connection with the piston α through the piston rod c.
Der Totraum d des Bremszylinders ist durch den Kanal e und der Arbeitsraum k durch den Kanal i mit dem Luftverteilungsbehälter f verbunden, in dem das Steuerventil g verschiebbar ist. Um die beiden durch das Steuerventil getrennten Räume des Behälters / miteinander zu verbinden, dient der Kanal h. Ferner führt von dem Behälter f aus der Kanal I zur Druckkammer m des Hilfskolbens b und schließlich der Kanal η nach der Außenluft. Die Verbindung der beiden Kanäle / und η wird durch die Schieberhöhlung 0 des Steuerventils g hergestellt, das im übrigen durch beiderseitig angeordnete Federn entlastet ist.The dead space d of the brake cylinder is connected through the channel e and the working space k through the channel i with the air distribution container f , in which the control valve g is displaceable. The channel h is used to connect the two spaces of the container / that are separated by the control valve. Furthermore, the channel I leads from the container f to the pressure chamber m of the auxiliary piston b and finally the channel η to the outside air. The connection of the two channels / and η is established by the slide cavity 0 of the control valve g , which is otherwise relieved by springs arranged on both sides.
Bei einer zwecks Einleitung einer Bremsung herbeigeführten Druckminderung in der Hauptleitung P bewegt sich das Steuerventil g so weit nach links, daß der Totraum d des Bremszylinders mit dem Druckraume m des Hilfsbremskolbens durch den Kanal e, den Behälter / und den Kanal I in Verbindung gebracht wird. Die in dem Arbeitsraum k eingeschlossene und die in die Druckkammer m übertretende Druckluft bewirken eine' Verschiebung der Kolben α und b und somit das 4-5 Anlegen der Bremse.When the pressure in the main line P is reduced to initiate braking, the control valve g moves so far to the left that the dead space d of the brake cylinder is brought into connection with the pressure space m of the auxiliary brake piston through the channel e, the container / and the channel I. . The compressed air enclosed in the working space k and the compressed air passing into the pressure chamber m cause a displacement of the pistons α and b and thus the 4-5 application of the brake.
Soll die Bremse gelöst werden. so wird Druckluft in die Hauptleitung eingelassen, die das Steuerventil g in seine Endlage nach rechts verschiebt. In dieser Stellung verbindet die Schieberhöhlung 0 die Kanäle / und 11, so daß die Druckkammer m ins Freie entlüftet wird, während gleichzeitig die Ar-' beitskammer k durch Kanal i und der Totraum d über die Kanäle h und e mit frischer Druckluft geladen werden. Nach Druckausgleich in den Räumen k, f und d kehrt das entlastete Ventil g unter dem Federeinflusse in die in der Zeichnung dargestellte Lösestellung zurück.Should the brake be released. so compressed air is let into the main line, which moves the control valve g to its end position to the right. In this position, the slide cavity 0 connects the channels / and 11, so that the pressure chamber m is vented to the outside, while at the same time the working chamber k through channel i and the dead space d through channels h and e are charged with fresh compressed air. After pressure equalization in spaces k, f and d , the relieved valve g returns to the release position shown in the drawing under the influence of the spring.
Claims (1)
Publications (1)
Publication Number | Publication Date |
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DE205852C true DE205852C (en) |
Family
ID=468074
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DENDAT205852D Active DE205852C (en) |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE205852C (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6092970A (en) * | 1998-01-09 | 2000-07-25 | Rite-Hite Holding Corporation | Manually positioned wheel chocking apparatus |
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0
- DE DENDAT205852D patent/DE205852C/de active Active
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6092970A (en) * | 1998-01-09 | 2000-07-25 | Rite-Hite Holding Corporation | Manually positioned wheel chocking apparatus |
US6524053B2 (en) | 1998-01-09 | 2003-02-25 | Rite-Holding Holding Corporation | Manually positioned wheel chocking apparatus |
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