DE102009021893A1 - Damping filter i.e. tickling filter, for use in hydraulic system i.e. hydraulic clutch actuator of motor vehicle, has sleeve with extension that is movable from filling into operating position such that increased leakage in valve is reduced - Google Patents
Damping filter i.e. tickling filter, for use in hydraulic system i.e. hydraulic clutch actuator of motor vehicle, has sleeve with extension that is movable from filling into operating position such that increased leakage in valve is reduced Download PDFInfo
- Publication number
- DE102009021893A1 DE102009021893A1 DE102009021893A DE102009021893A DE102009021893A1 DE 102009021893 A1 DE102009021893 A1 DE 102009021893A1 DE 102009021893 A DE102009021893 A DE 102009021893A DE 102009021893 A DE102009021893 A DE 102009021893A DE 102009021893 A1 DE102009021893 A1 DE 102009021893A1
- Authority
- DE
- Germany
- Prior art keywords
- extension
- filter
- check valve
- damping filter
- hydraulic
- 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- Withdrawn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
-
- 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
- B60T17/18—Safety devices; Monitoring
- B60T17/22—Devices for monitoring or checking brake systems; Signal devices
- B60T17/221—Procedure or apparatus for checking or keeping in a correct functioning condition of brake systems
-
- 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
- B60T17/04—Arrangements of piping, valves in the piping, e.g. cut-off valves, couplings or air hoses
-
- 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
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/027—Check valves
-
- 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
- F15B21/008—Reduction of noise or vibration
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D48/00—External control of clutches
- F16D48/02—Control by fluid pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D48/00—External control of clutches
- F16D48/02—Control by fluid pressure
- F16D2048/0215—Control by fluid pressure for damping of pulsations within the fluid system
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Transportation (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
Abstract
Description
Die vorliegende Erfindung betrifft einen Dämpfungsfilter nach dem Oberbegriff des Anspruchs 1 sowie ein hydraulisches System mit einem Dämpfungsfilter.The The present invention relates to a damping filter according to the preamble of claim 1 and a hydraulic system with a damping filter.
Ein derartiger Dämpfungsfilter, meist als Kribbelfilter bezeichnet, dient zum Filtern von Druckschwingungen, die in einer hydraulischen Strecke zwischen Nehmer- und Geberzylinder auftreten können. Der Aufbau entspricht dem eines doppelt wirkenden Rückschlagventils, welches eine geringe Grundleckage besitzt, um einen Vorlastdruck am Nehmerzylinder zu vermeiden. Beim Schlauchkribbelfilter werden die Rückschlagventile mittels eines über mehreren Bohrungen liegenden Schlauches realisiert.One Such attenuation filter, usually called Kribbelfilter, is used to filter pressure oscillations in a hydraulic Distance between slave and master cylinder can occur. The structure corresponds to that of a double-acting check valve, which has a low base leakage to a preload pressure to avoid the slave cylinder. When Schlauchkribbelfilter be the check valves by means of one over several Holes lying hose realized.
Ein
gattungsgemäßer Dämpfungsfilter ist beispielsweise
in der
Bei der Erstbefüllung im Fahrzeug wird die Luft mittels eines Unterdruckes über den Dämpfungsfilter aus dem Nehmerzylinder gesaugt. Ist die Grundleckage so gering, dass nicht die ganze Luftmenge abgesaugt werden kann, wird ein Quellring eingesetzt. In neuem Zustand gibt dieser einen Querschnitt zum Durchströmen frei. Ist das System nach der Befüllung mit Bremsflüssigkeit befüllt, quillt der Quellring und verschließt diesen Querschnitt. Erst wenn der Querschnitt verschlossen ist, hat der Dämpfungsfilter die volle Filterfunktion.at the first filling in the vehicle is the air by means of a Underpressure over the damping filter from the Slave cylinder sucked. Is the base leakage so low that not the entire amount of air can be sucked, a source ring is used. In new condition, this gives a cross-section to flow through free. Is the system after filling with brake fluid filled, the spring ring swells and closes this cross-section. Only when the cross-section is closed, the damping filter has the full filter function.
Nachteilig an der Verwendung eines Quellringes ist, dass die volle Funktionsfähigkeit des Dämpfungsfilters erst ab mindestens einer Woche nach der Vakuum-Druckbefüllung erreicht wird. Die Quellgeschwindigkeit des Quellrings ist zudem abhängig von der verwendeten Bremsflüssigkeit. Der Quellring wird zudem als zusätzliches Bauteil benötigt.adversely The use of a source ring is that full functionality of the damping filter until at least one week after the vacuum pressure filling is achieved. The source speed The source ring is also dependent on the brake fluid used. The source ring is also needed as an additional component.
Die Aufgabe der vorliegenden Erfindung ist es daher, die volle Funktionsfähigkeit des Dämpfungsfilters in Einbaulage in einem hydraulischen System unmittelbar nach einer Vakuum-Druckbefüllung zu erreichen.The Object of the present invention is therefore, the full functionality of the damping filter in installation position in a hydraulic system to reach immediately after a vacuum pressure filling.
Dieses Problem wird gelöst durch einen Dämpfungsfilter für ein hydraulisches System mit mindestens einer Schlauchmanschette, die an einem Strömungsteiler angeordnet ist und im Zusammenwirken mit mindestens einer am Strömungsteiler angeordneten Bohrung mindestens ein in eine Durchlassrichtung öffnendes und mindestens ein in eine Sperrrichtung sper rendes Rückschlagventil bildet, wobei die Schlauchmanschette mindestens einen Fortsatz aufweist, der bei der Montage des Dämpfungsfilters in eine Befüllstellung zwischen Schlauchmanschette und Strömungsteiler geschoben wird, so dass das Rückschlagventil eine erhöhte Leckage in Sperrrichtung aufweist, wobei der Fortsatz beim Durchströmen des Rückschlagventils mit Hydraulikflüssigkeit in Durchlassrichtung aus der Befüllstellung in eine Betriebsstellung bewegbar ist, so dass die erhöhte Leckage wieder verringert wird. Nach der Befüllung des hydraulischen Systems, in der der erfindungsgemäße Dämpfungsfilter angeordnet ist, wird der Geberzylinder einmalig oder mehrmalig betätigt, so dass Hydraulikflüssigkeit durch den Dämpfungsfilter strömt. Dadurch wird der Fortsatz aus der Befüllstellung in die Betriebsstellung bewegt. Die volle Funktionsfähigkeit des Dämpfungsfilters wird somit unmittelbar nach der Befüllung erreicht. Der Einfluss der Bremsflüssigkeit auf die Zeit, in der die volle Funktionsfähigkeit des Kribbelfilters erreicht ist, ist somit eliminiert. Zudem kann der Quellring entfallen.This Problem is solved by a damping filter for a hydraulic system with at least one hose cuff, which is arranged on a flow divider and in cooperation with at least one bore arranged on the flow divider at least one opening in a direction of passage and at least one in a reverse direction Sper rendes check valve forms, wherein the hose cuff has at least one extension, the during assembly of the damping filter in a filling position pushed between hose sleeve and flow divider so that the check valve is increased Has leakage in the reverse direction, wherein the extension when flowing through the check valve with hydraulic fluid in the forward direction from the filling position into an operating position is movable, so that the increased leakage decreases again becomes. After filling the hydraulic system, in the attenuation filter according to the invention is arranged, the master cylinder is actuated once or several times, so that hydraulic fluid through the damping filter flows. As a result, the extension of the filling position moved to the operating position. Full functionality the damping filter is thus immediately after filling reached. The influence of the brake fluid on the time, in the full functionality of the Kribbelfilters is reached, is thus eliminated. In addition, the source ring can be omitted.
Vorzugsweise ist vorgesehen, dass die Schlauchmanschette im Zusammenwirken mit mindestens einer am Strömungsteiler angeordneten ersten Bohrung ein in eine erste Strömungsrichtung öffnendes und ein in eine zweite Strömungsrichtung sperrendes erstes Rückschlagventil bildet und im Zusammenwirken mit mindestens einer an dem Strömungsteiler angeordneten zweiten Bohrung ein in die zweite Strömungsrichtung öffnendes und ein in die erste Strömungsrichtung sperrendes zweites Rückschlagventil bildet, wobei der Fortsatz dem ersten oder zweiten Rückschlagventil zugeordnet ist.Preferably is provided that the hose cuff in cooperation with at least one arranged on the flow divider first Hole opening in a first flow direction and a first blocking in a second flow direction Non-return valve forms and in cooperation with at least a arranged on the flow divider second bore an opening in the second flow direction and a second blocking in the first flow direction Forms check valve, wherein the extension of the first or associated with the second check valve.
Vorzugsweise ist weiter vorgesehen, dass der Fortsatz an mindestens einer, vorzugsweise beiden, seiner Längsseiten eine Wulst aufweist. Die Wülste verringern die in Kontakt mit der Schlauchmanschette und dem Strömungsteiler stehende Fläche des Fortsatzes, so dass dieser mit geringerer Kraft und daher geringerer Durchflussgeschwindigkeit von der Befüllstellung in die Betriebsstellung gebracht wird. Vorzugsweise ist weiter vorgesehen, dass zwischen den Wülsten ein Spalt besteht, so dass der Leckagestrom erhöht wird.Preferably is further provided that the extension of at least one, preferably both, its longitudinal sides has a bead. The beads reduce the in contact with the hose cuff and the flow divider standing surface of the extension, so that this with less force and therefore lower flow rate from the filling position is brought into the operating position. Preferably, it is further provided that There is a gap between the beads, so that the leakage current is increased.
Vorzugsweise ist weiter vorgesehen, dass der Fortsatz eine geringere Dicke als die Schlauchmanschette aufweist. Dadurch ist dieser flexibler und kann leichter von der Befüllstellung in die Betriebsstellung gebracht werden.Preferably is further provided that the extension has a smaller thickness than having the hose cuff. This makes it more flexible and can easier from the filling position to the operating position to be brought.
Das eingangs genannte Problem wird auch gelöst durch ein hydraulisches System umfassend einen Geberzylinder, einen Nehmerzylinder, eine beide verbindende Druckleitung und einem in der Druckleitung angeordneten erfindungsgemäßen Dämpfungsfilter.The The problem mentioned above is also solved by a hydraulic System comprising a master cylinder, a slave cylinder, a both connecting pressure line and one arranged in the pressure line damping filter according to the invention.
Im Folgenden werden Ausführungsbeispiele der Erfindung anhand der beiliegenden Zeichnungen erläutert.in the Below, embodiments of the invention are based on of the accompanying drawings.
Dabei zeigen:there demonstrate:
Bei
einer wie in
Die
hydraulische Kupplungsbetätigung
Ist
der Druck auf der Geberzylinderseite höher als auf der
Nehmerzylinderseite – der Druck also am Abgang
Das
Gehäuseteil
Der
Strömungsteiler
Die
Schlauchmanschette
- 11
- Hydraulische Kupplungsbetätigung/hydraulisches Systemhydraulic Clutch actuation / hydraulic system
- 22
- GeberzylinderMaster cylinder
- 33
- Druckleitungpressure line
- 44
- Nehmerzylinderslave cylinder
- 55
- NehmerzylinderkolbenSlave cylinder piston
- 66
- Ausrücklagerrelease bearing
- 77
- TellerfederBelleville spring
- 88th
- Druckplatteprinting plate
- 99
- GegendruckplattePlaten
- 1010
- Kupplungsscheibeclutch disc
- 1111
- GeberzylinderkolbenMaster cylinder piston
- 1212
- Kupplungspedalclutch pedal
- 1313
- Druckstangepushrod
- 1414
- NachlaufbehälterAn expansion reservoir
- 1515
- Druckraumpressure chamber
- 1616
- Druckraumpressure chamber
- 1717
- Fahrzeugkupplungvehicle clutch
- 1818
- Dämpfungsfilterfilters
- 1919
- Gehäuseteilhousing part
- 2020
- Gehäuseteilhousing part
- 2121
- Aufnahmekammerreceiving chamber
- 2222
- Steckelementplug-in element
- 2323
- DurchgangsbohrungThrough Hole
- 2424
- Ringdichtungring seal
- 2525
- Ringnutring groove
- 2626
- Klemmfederclamping spring
- 2727
- Aussparungrecess
- 2828
- Ventilanordnungvalve assembly
- 2929
- Erstes Rückschlagventilfirst check valve
- 3030
- Zweites Rückschlagventilsecond check valve
- 3131
- Abgang zum Nehmerzylinderleaving to the slave cylinder
- 3232
- Abgang zum Geberzylinderleaving to the master cylinder
- 3333
- Pfeilarrow
- 3434
- Strömungsteilerflow divider
- 3535
- Geberzylinderseitiger StrömungskanalMaster Cylinder sided flow channel
- 3636
- Nehmerzylinderseitiger StrömungskanalSlave cylinder sided flow channel
- 3737
- Ringraumannulus
- 3838
- Radialbohrungradial bore
- 3939
- Bohrungdrilling
- 4040
- Bohrungdrilling
- 4141
- Schlauchmanschettehose sleeve
- 4242
- Ringring
- 4343
- O-RingO-ring
- 4444
- Fortsatzextension
- 4545
- Spaltgap
- 4646
- Wulstbead
- 4747
- Hautskin
- 4848
- Spaltgap
ZITATE ENTHALTEN IN DER BESCHREIBUNGQUOTES INCLUDE IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- - DE 10106958 A1 [0003] - DE 10106958 A1 [0003]
- - DE 10106958 [0025] - DE 10106958 [0025]
Claims (7)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102009021893A DE102009021893A1 (en) | 2008-06-05 | 2009-05-18 | Damping filter i.e. tickling filter, for use in hydraulic system i.e. hydraulic clutch actuator of motor vehicle, has sleeve with extension that is movable from filling into operating position such that increased leakage in valve is reduced |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102008027067.9 | 2008-06-05 | ||
DE102008027067 | 2008-06-05 | ||
DE102009021893A DE102009021893A1 (en) | 2008-06-05 | 2009-05-18 | Damping filter i.e. tickling filter, for use in hydraulic system i.e. hydraulic clutch actuator of motor vehicle, has sleeve with extension that is movable from filling into operating position such that increased leakage in valve is reduced |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102009021893A1 true DE102009021893A1 (en) | 2009-12-10 |
Family
ID=41268995
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102009021893A Withdrawn DE102009021893A1 (en) | 2008-06-05 | 2009-05-18 | Damping filter i.e. tickling filter, for use in hydraulic system i.e. hydraulic clutch actuator of motor vehicle, has sleeve with extension that is movable from filling into operating position such that increased leakage in valve is reduced |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE102009021893A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102434689A (en) * | 2010-09-29 | 2012-05-02 | 罗伯特·博世有限公司 | Sealing bushing assembly and hydraulic device |
DE102011108588A1 (en) * | 2011-07-27 | 2013-01-31 | Thomas Magnete Gmbh | Damper assembly for use with attachment for attaching nozzle of pump, has locking member for locking to pump is formed at one end of attachment, where attachment has two portions for arranging inlet channel and outlet channel respectively |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10106958A1 (en) | 2000-02-29 | 2001-08-30 | Luk Lamellen & Kupplungsbau | Hydraulic system, esp for vehicles, comprises a delivery cylinder, a receiver cylinder, a connecting pressure medium line, and a pressure limiting valve. |
-
2009
- 2009-05-18 DE DE102009021893A patent/DE102009021893A1/en not_active Withdrawn
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10106958A1 (en) | 2000-02-29 | 2001-08-30 | Luk Lamellen & Kupplungsbau | Hydraulic system, esp for vehicles, comprises a delivery cylinder, a receiver cylinder, a connecting pressure medium line, and a pressure limiting valve. |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102434689A (en) * | 2010-09-29 | 2012-05-02 | 罗伯特·博世有限公司 | Sealing bushing assembly and hydraulic device |
DE102011108588A1 (en) * | 2011-07-27 | 2013-01-31 | Thomas Magnete Gmbh | Damper assembly for use with attachment for attaching nozzle of pump, has locking member for locking to pump is formed at one end of attachment, where attachment has two portions for arranging inlet channel and outlet channel respectively |
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Legal Events
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8127 | New person/name/address of the applicant |
Owner name: SCHAEFFLER TECHNOLOGIES GMBH & CO. KG, 91074 H, DE |
|
R081 | Change of applicant/patentee |
Owner name: SCHAEFFLER TECHNOLOGIES AG & CO. KG, DE Free format text: FORMER OWNER: SCHAEFFLER TECHNOLOGIES GMBH & CO. KG, 91074 HERZOGENAURACH, DE Effective date: 20120824 Owner name: SCHAEFFLER TECHNOLOGIES GMBH & CO. KG, DE Free format text: FORMER OWNER: SCHAEFFLER TECHNOLOGIES GMBH & CO. KG, 91074 HERZOGENAURACH, DE Effective date: 20120824 |
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Owner name: SCHAEFFLER TECHNOLOGIES GMBH & CO. KG, DE Free format text: FORMER OWNER: SCHAEFFLER TECHNOLOGIES AG & CO. KG, 91074 HERZOGENAURACH, DE Effective date: 20140218 Owner name: SCHAEFFLER TECHNOLOGIES AG & CO. KG, DE Free format text: FORMER OWNER: SCHAEFFLER TECHNOLOGIES AG & CO. KG, 91074 HERZOGENAURACH, DE Effective date: 20140218 |
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R081 | Change of applicant/patentee |
Owner name: SCHAEFFLER TECHNOLOGIES AG & CO. KG, DE Free format text: FORMER OWNER: SCHAEFFLER TECHNOLOGIES GMBH & CO. KG, 91074 HERZOGENAURACH, DE Effective date: 20150402 |
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R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |