DE646838C - A hydraulic drive device consisting of a motor, a pump that works only in one direction and a power transmission element - Google Patents
A hydraulic drive device consisting of a motor, a pump that works only in one direction and a power transmission elementInfo
- Publication number
- DE646838C DE646838C DES114363D DES0114363D DE646838C DE 646838 C DE646838 C DE 646838C DE S114363 D DES114363 D DE S114363D DE S0114363 D DES0114363 D DE S0114363D DE 646838 C DE646838 C DE 646838C
- Authority
- DE
- Germany
- Prior art keywords
- motor
- switch
- pump
- valve
- brake
- 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
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
- B60T17/02—Arrangements of pumps or compressors, or control devices therefor
-
- 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
- B60T13/662—Electrical control in fluid-pressure brake systems characterised by specified functions of the control system components
-
- 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
- B60T13/68—Electrical control in fluid-pressure brake systems by electrically-controlled valves
- B60T13/686—Electrical control in fluid-pressure brake systems by electrically-controlled valves in hydraulic systems or parts thereof
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Details Of Reciprocating Pumps (AREA)
Description
DEUTSCHES REICHGERMAN EMPIRE
AUSGEGEBEN AM
22. JUNI 1937ISSUED ON
June 22, 1937
REICHSPATENTAMTREICH PATENT OFFICE
PATENTSCHRIFTPATENT LETTERING
KLASSE 47c GRUPPECLASS 47c GROUP
Patentiert im Deutschen Reiche vom 17. Juni 1934 abPatented in the German Empire on June 17, 1934
Es sind hydraulische Antriebsvorrichtungen bekannt, die aus einem Motor, einer nur in einer Richtung arbeitenden Pumpe und einem zur Kraftübertragung dienenden KoI-ben bestehen. Bei der bekannten Anordnung arbeitet beispielsweise beim Lüften einer von der Antriebsvorrichtung betätigten Bremse eine Flügelradpumpe während des gesamten Arbeitsvorganges. Wird die Pumpe stillgesetzt, so strömt die Flüssigkeit durch die Pumpe zurück, und die Bremse wird infolge der Bewegung des Kolbens wieder aufgelegt. Bei dieser Anordnung kann eine Überlastung des Antriebsmotors der Vorrichtung auftreten, da der Motor während des gesamten Lüftvorganges unter Spannung bleibt. Außerdem tritt bei Verwendung von öl als Druckmittel und längerem Arbeiten der Pumpe eine Zersetzung eines Teiles des Öles auf, das in der Pumpe zu Schaum wird.There are hydraulic drive devices known, which consist of one engine, one only unidirectional pump and a KoI-ben for power transmission exist. In the known arrangement, for example, one of works when ventilating the drive device brake operated an impeller pump throughout Work process. If the pump is stopped, the liquid flows through the Pump back and the brake is applied again as the piston moves. With this arrangement an overload of the drive motor of the device can occur, because the motor remains live during the entire release process. It also occurs when using oil as a pressure medium and prolonged operation of the pump will cause some of the oil to break down and turn into foam in the pump.
Schließlich hat man bei den bekannten Antriebsvorrichtungen bereits in dem Arbeitskolben Rückschlagventile vorgesehen, durch die die Überströmleitungen im Kolben nach Stillas setzen der Pumpe selbsttätig verschlossen werden, so daß ein Senken des Kolbens verhindert wird. Bei dieser Anordnung ist ein Auslaßventil für die Flüssigkeit vorgesehen, das von Hand oder von fern her bedienbar ist. ' «Finally, with the known drive devices, one already has in the working piston Check valves are provided through which the overflow lines in the piston according to Stillas set the pump to be closed automatically, so that a lowering of the piston is prevented will. In this arrangement, an outlet valve for the liquid is provided, which can be operated manually or remotely is. '«
Während bei den bekannten Anordnungen Pumpen verwendet werden, die im Stillstand ein Zurückströmen der Flüssigkeit gestatten und bei der einen bekannten Ausführungsart besondere Rückschlagventile vorgesehen werden müssen, um ein Zurückströmen der Flüssigkeit durch die Pumpe zu verhindern, ist die Erfindung von der Erkenntnis ausgegangen, daß die Verwendung einer im Stillstand undurchlässigen Pumpe bei einer derartigen Antriebsvorrichtung möglich ist, sofern ein besonderes Auslaßventil mit dem Kontakt für den Pumpenmotor zusammenarbeitet.While in the known arrangements pumps are used that are at a standstill allow the liquid to flow back and in the one known embodiment Special check valves must be provided to prevent the liquid from flowing back to prevent by the pump, the invention is based on the knowledge, that the use of an impermeable pump in such a standstill Driving device is possible provided a special exhaust valve with the contact cooperates for the pump motor.
Nach der Erfindung wird in der Anordnung für Hubbremsen der Kontakt des Pumpenmotors durch das Auslaßventil ein- und ausgeschaltet und die Ventilsteuerung vom Betriebszustand des Hubmotors abhängig gemacht. Durch die zwangsläufige Abhängigkeit der beiden Vorgänge wird ein wirtschaftliches Arbeiten der gesamten Einrichtung gewährleistet. According to the invention, the contact of the pump motor is in the arrangement for lifting brakes switched on and off by the exhaust valve and made the valve control dependent on the operating state of the lifting motor. The inevitable dependence of the two processes becomes an economic one Guaranteed work throughout the facility.
Ein Ausführungsbeispiel für die Erfindung ist in der Zeichnung dargestellt. Die Antriebsvorrichtung besteht aus einem Motor 1 und einer Zahnradpumpe 2, deren Druckstutzen an eine Leitung4 angeschlossen ist. Als Kraftübertragungsglied dient ein in einem Zylinder 5 geführter Kolben 6. Die Kolbenstange 7 ist mit einem Bremshebel 8An embodiment of the invention is shown in the drawing. The drive device consists of a motor 1 and a gear pump 2, their pressure port is connected to a line4. An in A piston 6 guided by a cylinder 5. The piston rod 7 is equipped with a brake lever 8
*) Von dem Patentsitcher ist als der Erfinder angegeben worden:*) The patentsitcher has given as the inventor:
Hans Höfler in Berlin-Siemensstadt.Hans Höfler in Berlin-Siemensstadt.
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DES114363D DE646838C (en) | 1934-06-17 | 1934-06-17 | A hydraulic drive device consisting of a motor, a pump that works only in one direction and a power transmission element |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DES114363D DE646838C (en) | 1934-06-17 | 1934-06-17 | A hydraulic drive device consisting of a motor, a pump that works only in one direction and a power transmission element |
Publications (1)
Publication Number | Publication Date |
---|---|
DE646838C true DE646838C (en) | 1937-06-22 |
Family
ID=7533117
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DES114363D Expired DE646838C (en) | 1934-06-17 | 1934-06-17 | A hydraulic drive device consisting of a motor, a pump that works only in one direction and a power transmission element |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE646838C (en) |
-
1934
- 1934-06-17 DE DES114363D patent/DE646838C/en not_active Expired
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