DE4004482A1 - Periodically regeneration compressed air dryer in pneumatic system - by valve controlled air passage venting compressed air directly to atmos. via dryer - Google Patents
Periodically regeneration compressed air dryer in pneumatic system - by valve controlled air passage venting compressed air directly to atmos. via dryerInfo
- Publication number
- DE4004482A1 DE4004482A1 DE4004482A DE4004482A DE4004482A1 DE 4004482 A1 DE4004482 A1 DE 4004482A1 DE 4004482 A DE4004482 A DE 4004482A DE 4004482 A DE4004482 A DE 4004482A DE 4004482 A1 DE4004482 A1 DE 4004482A1
- Authority
- DE
- Germany
- Prior art keywords
- dryer
- compressed air
- compressor
- air dryer
- 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.)
- Withdrawn
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/04—Special measures taken in connection with the properties of the fluid
- F15B21/041—Removal or measurement of solid or liquid contamination, e.g. filtering
-
- 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
- B60T17/002—Air treatment devices
- B60T17/004—Draining and drying devices
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transportation (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Engineering & Computer Science (AREA)
- Valves And Accessory Devices For Braking Systems (AREA)
- Drying Of Gases (AREA)
- Compressor (AREA)
Abstract
Description
Die Erfindung geht aus von einer Schaltungseinrichtung zur Regeneration eines Luftrockners nach der Gattung des Hauptanspruchs. In Pneumatiksystemen, speziell in der Kraftfahrzeug-Pneumatik, werden regenerierbare Trockner eingesetzt, um ein Vereisen der Stellelemente und Korrosion zu vermeiden. Das Trockenmittel muß durch eine entsprechende Schalteinrichtung regelmäßig regeniert werden. Bekannte Schalteinrichtungen benötigen für diesen Zweck eine verhältnismäßig große Anzahl von Ventilen. Außerdem steht zur Trockenmittel-Regenerierung nur das im System vorhandene Luftvolumen zur Verfügung.The invention relates to a circuit device Regeneration of an air dryer according to the genus of the main claim. In pneumatic systems, especially in automotive pneumatics, regenerable dryers are used to freeze the Avoid control elements and corrosion. The desiccant must regularly regenerated by an appropriate switching device will. Known switching devices require one for this purpose relatively large number of valves. Also stands for Desiccant regeneration only the air volume in the system to disposal.
Die erfindungsgemäße Schalteinrichtung zur Regeneration eines Lufttrockners mit den kennzeichnenden Merkmalen des Hauptanspruchs hat demgegenüber den Vorteil, daß es mit vertretbarem Aufwand möglich ist, den Trockner bedarfsgerecht zu regenieren, indem die Verdichterlaufzeit zur Regenerierung des Trockners durch ent sprechende Sensoren gesteuert wird. The switching device according to the invention for the regeneration of a Air dryer with the characteristic features of the main claim has the advantage that it is reasonable it is possible to regenerate the dryer as needed by using the Compressor run time for regeneration of the dryer by ent speaking sensors is controlled.
Weitere Vorteile der Erfindung ergeben sich aus den Unteransprüchen, der nachfolgenden Beschreibung und Zeichnung.Further advantages of the invention result from the subclaims, the following description and drawing.
Zwei Ausführungsbeispiele der Erfindung sind in der nachfolgenden Beschreibung und Zeichnung widergegeben. Letztere zeigt zwei Aus führungsbeispiele von Schalteinrichtungen in schematischer Dar stellung.Two embodiments of the invention are in the following Description and drawing reproduced. The latter shows two offs examples of switching devices in schematic Dar position.
In Fig. 1 ist mit 10 ein Verdichter bezeichnet, der von einer Antriebsmaschine 11 angetrieben ist. An den Verdichter ist eine Druckleitung 12 angeschlossen, die in einen Trockner 13 eindringt, dann weiterführt zu einem 3/2-Wegeventil 14 mit den Schaltstellungen I und II und dann weiter zu einem 3/2-Wegeventil 15 ebenfalls mit den Schaltstellungen I und II. Vom Wegeventil 15 führt die Druck leitung 12 zu Verbrauchern, außerdem ist an das Wegeventil 15 noch eine zweite Druckleitung 16 angeschlossen, die ebenfalls zu Ver brauchern führt. Dies können Druckluftzylinder 17, 18 sein, denen Steuerventile 19, 20 zugeordnet. Die Wegeventile 14, 15 sind elektromagnetisch betätigbar.In Fig. 1, 10 denotes a compressor which is driven by a prime mover 11 . A pressure line 12 is connected to the compressor, which penetrates into a dryer 13 , then continues to a 3/2-way valve 14 with the switching positions I and II and then further to a 3/2-way valve 15 likewise with the switching positions I and II From the directional control valve 15 , the pressure line 12 leads to consumers, and a second pressure line 16 is also connected to the directional control valve 15 , which also leads to consumers. These can be compressed air cylinders 17 , 18 to which control valves 19 , 20 are assigned. The directional control valves 14 , 15 can be actuated electromagnetically.
Bei dem Trockner 13 handelt es sich um einen regenierbaren, wodurch ein Vereisen der Verbraucher und Korrosion vermieden wird. Das Trockenmittel im Trockner muß durch eine entsprechende Druckluft schaltung regelmäßig regeneriert werden. Dies geschieht im Aus führungsbeispiel nach Fig. 1 dadurch, daß zum Regenerieren das Wegeventil 14 in Schaltstellung II gebracht wird, so daß die durch den Trockner fließende Luft frei ausgeblasen wird. Dabei wird die im Trockenmittel enthaltene Feuchtigkeit mitgeführt, welche durch die zuvor geförderte, verdichtete Luft sich im Verdichter angesammelt hat. The dryer 13 is a regenerable one, which prevents icing up of the consumer and corrosion. The desiccant in the dryer must be regularly regenerated by an appropriate compressed air circuit. This is done in the off operation example of FIG. 1 in that for regenerating the directional control valve 14 is brought in the switching position II, so that the current flowing through the drying air is freely blown out. The moisture contained in the desiccant is carried along, which has accumulated in the compressor due to the previously conveyed, compressed air.
Das elektromagnetisch betätigbare 3/2-Wegeventil 15 dient zur Verteilung der Druckluft zu den Verbraucherleitungen.The electromagnetically actuated 3/2-way valve 15 is used to distribute the compressed air to the consumer lines.
Beim Ausführungsbeispiel nach Fig. 2 ist in der Druckleitung 12 vor dem Verdichter 10 ein elektromagnetisch betätigbares 3/2-Wegeventil mit den Schaltstellungen I und II angeordnet. Hinter dem Trockner ist in der Druckleitung 12 ebenfalls ein elektromagnetisch betätig bares 3/2-Wegeventil 23 angeordnet, und zwar noch vor dem Trockner 13. Von der Druckleitung 12 geht hinter dem Trockner 13 eine Leitung 24 aus, die zum Wegeventil 22 zurückführt. Hinter der Mündungsstelle befindet sich in der Druckleitung 12 ein Rückschlagventil 25, das sich vom Trockner in Richtung zu den Verbrauchern zu öffnen vermag.In the embodiment according to FIG. 2, an electromagnetically actuable 3/2-way valve with the switching positions I and II is arranged in the pressure line 12 upstream of the compressor 10 . An electromagnetically operable 3/2-way valve 23 is also arranged downstream of the dryer in the pressure line 12 , specifically before the dryer 13 . A line 24 , which leads back to the directional control valve 22 , extends from the pressure line 12 behind the dryer 13 . A check valve 25 is located behind the mouth in the pressure line 12 and can be opened from the dryer in the direction of the consumers.
Mit diesem Ausführungsbeispiel ist es möglich, den Trockner 13 mit der Saugseite des Verdichters 10 zu verbinden. Dies ist dann der Fall, wenn das Wegeventil 22 in Schaltstellung II steht. Steht das Wegeventil 23 ebenfalls in Schaltstellung II, dann wird über die Leitung 24 und das Wegeventil 22 im Trockner 13 ein Unterdruck erzeugt, mit dessen Hilfe eine wesentlich effektivere und schnellere Regenerierung des Trockners 13 erreicht wird.With this embodiment it is possible to connect the dryer 13 to the suction side of the compressor 10 . This is the case when the directional valve 22 is in switch position II. If the directional control valve 23 is also in switch position II, then a vacuum is generated in the dryer 13 via the line 24 and the directional control valve 22 , with the aid of which a substantially more effective and faster regeneration of the dryer 13 is achieved.
Claims (4)
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4004482A DE4004482A1 (en) | 1990-02-14 | 1990-02-14 | Periodically regeneration compressed air dryer in pneumatic system - by valve controlled air passage venting compressed air directly to atmos. via dryer |
ITMI910280A IT1247831B (en) | 1990-02-14 | 1991-02-05 | MANEUVERING DEVICE TO REGENERATE AN AIR DRYER |
FR9101453A FR2658251B1 (en) | 1990-02-14 | 1991-02-08 | CONNECTION DEVICE FOR THE REGENERATION OF AN AIR DRYER, PARTICULARLY FOR MOTOR VEHICLES. |
JP3018797A JPH04219114A (en) | 1990-02-14 | 1991-02-12 | Changeover device for regenerating air drier |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4004482A DE4004482A1 (en) | 1990-02-14 | 1990-02-14 | Periodically regeneration compressed air dryer in pneumatic system - by valve controlled air passage venting compressed air directly to atmos. via dryer |
Publications (1)
Publication Number | Publication Date |
---|---|
DE4004482A1 true DE4004482A1 (en) | 1991-08-22 |
Family
ID=6400088
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE4004482A Withdrawn DE4004482A1 (en) | 1990-02-14 | 1990-02-14 | Periodically regeneration compressed air dryer in pneumatic system - by valve controlled air passage venting compressed air directly to atmos. via dryer |
Country Status (4)
Country | Link |
---|---|
JP (1) | JPH04219114A (en) |
DE (1) | DE4004482A1 (en) |
FR (1) | FR2658251B1 (en) |
IT (1) | IT1247831B (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2004024475A1 (en) * | 2002-09-02 | 2004-03-25 | Wabco Gmbh & Co. Ohg | Pneumatic suspension system for a vehicle |
US7441789B2 (en) | 2002-09-02 | 2008-10-28 | Wabco Gmbh & Co. Ohg | Pneumatic suspension system for a vehicle |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19515895A1 (en) * | 1995-04-29 | 1996-10-31 | Bosch Gmbh Robert | Compressed air supply device for vehicle compressed air systems and method for controlling the compressed air supply device |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3961862A (en) * | 1975-04-24 | 1976-06-08 | Gardner-Denver Company | Compressor control system |
DE3139682A1 (en) * | 1981-10-06 | 1983-05-05 | Robert Bosch Gmbh, 7000 Stuttgart | Air-drying device for compressed air system |
DE3242336A1 (en) * | 1982-11-16 | 1983-10-27 | Daimler-Benz Ag, 7000 Stuttgart | Compressed-air preparation device for a compressed-air supply system for compressed-air units |
DE3308547A1 (en) * | 1983-03-10 | 1984-09-13 | Robert Bosch Gmbh, 7000 Stuttgart | COMPRESSED AIR SUPPLY DEVICE FOR COMPRESSED AIR SYSTEMS |
DE3605365A1 (en) * | 1986-02-20 | 1987-08-27 | Bosch Gmbh Robert | Air-drying arrangement |
-
1990
- 1990-02-14 DE DE4004482A patent/DE4004482A1/en not_active Withdrawn
-
1991
- 1991-02-05 IT ITMI910280A patent/IT1247831B/en active IP Right Grant
- 1991-02-08 FR FR9101453A patent/FR2658251B1/en not_active Expired - Fee Related
- 1991-02-12 JP JP3018797A patent/JPH04219114A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2004024475A1 (en) * | 2002-09-02 | 2004-03-25 | Wabco Gmbh & Co. Ohg | Pneumatic suspension system for a vehicle |
US7441789B2 (en) | 2002-09-02 | 2008-10-28 | Wabco Gmbh & Co. Ohg | Pneumatic suspension system for a vehicle |
US7484747B2 (en) | 2002-09-02 | 2009-02-03 | Wabco Gmbh | Pneumatic suspension system for a vehicle |
Also Published As
Publication number | Publication date |
---|---|
ITMI910280A0 (en) | 1991-02-05 |
ITMI910280A1 (en) | 1992-08-05 |
JPH04219114A (en) | 1992-08-10 |
FR2658251B1 (en) | 1993-06-11 |
FR2658251A1 (en) | 1991-08-16 |
IT1247831B (en) | 1995-01-02 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8120 | Willingness to grant licences paragraph 23 | ||
8110 | Request for examination paragraph 44 | ||
8139 | Disposal/non-payment of the annual fee |