EP1290519A1 - Vorrichtung zur regelung des drucks in einem hydraulikkreis - Google Patents
Vorrichtung zur regelung des drucks in einem hydraulikkreisInfo
- Publication number
- EP1290519A1 EP1290519A1 EP01929320A EP01929320A EP1290519A1 EP 1290519 A1 EP1290519 A1 EP 1290519A1 EP 01929320 A EP01929320 A EP 01929320A EP 01929320 A EP01929320 A EP 01929320A EP 1290519 A1 EP1290519 A1 EP 1290519A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- pressure
- control valve
- pressure control
- channel
- membrane
- 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- Withdrawn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
- 238000013016 damping Methods 0.000 claims abstract description 13
- 238000007789 sealing Methods 0.000 claims description 13
- 239000012528 membrane Substances 0.000 claims description 9
- 230000001105 regulatory effect Effects 0.000 claims description 6
- 238000009423 ventilation Methods 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 2
- 230000003993 interaction Effects 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 230000004907 flux Effects 0.000 description 3
- 230000010349 pulsation Effects 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D16/00—Control of fluid pressure
- G05D16/02—Modifications to reduce the effects of instability, e.g. due to vibrations, friction, abnormal temperature, overloading or imbalance
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D16/00—Control of fluid pressure
- G05D16/20—Control of fluid pressure characterised by the use of electric means
- G05D16/2006—Control of fluid pressure characterised by the use of electric means with direct action of electric energy on controlling means
- G05D16/2013—Control of fluid pressure characterised by the use of electric means with direct action of electric energy on controlling means using throttling means as controlling means
- G05D16/2024—Control of fluid pressure characterised by the use of electric means with direct action of electric energy on controlling means using throttling means as controlling means the throttling means being a multiple-way valve
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/8593—Systems
- Y10T137/87169—Supply and exhaust
- Y10T137/87217—Motor
Definitions
- the invention is based on a device for regulating the pressure in a hydraulic circuit in accordance with the preamble of claim 1.
- Such devices are used in particular in automatic transmissions of motor vehicles in order to trigger gear changes, for example, by controlling the pressure level.
- Known devices include an electrically controllable pressure control valve, as is already known for example from DE 197 33 660 AI.
- This pressure control valve consists of a conventionally constructed magnetic part with a coil, coil core, flux guiding element and armature and a hydraulic part that is operatively connected to the magnetic part. In the latter, a closing element which can be acted upon by the armature controls pressure medium connections between inlet channels, working channels and return channels.
- This known pressure control valve can be installed with its hydraulic part in a receiving device, a so-called hydraulic block, in which recesses leading to pressure medium and assigned to the corresponding channels of the pressure control valve are provided. To pressure vibrations like them Corresponding means are provided to dampen during operation of the pressure control valve in the recess assigned to the working channel. The latter are anchored as separate components in the receiving device.
- a device according to the invention for regulating the pressure in a hydraulic circuit has the
- the means can be molded onto one of the sealing elements of the pressure control valve in a particularly simple manner, so that the number of components to be installed overall remains unchanged.
- the means close a variable damping chamber with the housing of the pressure control valve
- volume Their damping behavior can be varied according to the application by ventilation to the recess of the receiving device assigned to the return channel of the pressure control valve.
- this ventilation can also be designed as a throttle.
- Figures 1 and 2 show, in partial representations, two different embodiments of a device according to the invention in longitudinal section.
- the devices for regulating the pressure in a hydraulic circuit each comprise an electronically controllable pressure regulating valve 12 and one
- the pressure control valve 12 has a magnetic part 16.
- a portion of an electrically controllable, hollow cylindrical coil 20, a movably guided armature 22 and a flux guiding element 24 surrounding the coil 20 can be seen from this in FIGS. 1 and 2.
- the armature 22 has a section 22a protruding into the interior of the coil 20, an adjoining collar 22b spanning the end face of the coil 20 and a neck 22c in axial extension to this collar 22b.
- the closing member 32 is designed in the form of a ball and is located on the plunger 28 as a result of hydraulically induced flow and pressure forces on.
- the closing member 32 serves to control a first valve seat 34 formed in the hydraulic part 18, the inside diameter of which is larger than the outside diameter of the tappet 28.
- a second valve seat 36 of the hydraulic part 18 is formed on a perforated diaphragm 38 which is injected into the hydraulic part 18 facing the magnetic part 16.
- This pinhole 38 is controlled by the front end of the neck 22c and is aligned with the first valve seat 34.
- the first valve seat 34 is open and the second valve seat 36 is closed.
- the armature 22 is brought into the basic position shown by an unrecognizable reset device, for example in the form of a spring.
- the coil 20 is not energized.
- the hydraulic part 18 is fixedly connected to the magnetic part 16 of the pressure control valve 12.
- This magnetic part 16 is injection molded, preferably made of plastic, and has an injected holding element 40.
- the latter is sleeve-shaped and several times its diameter.
- a non-overmolded part of the holding element 40 projects beyond the hydraulic part 18 and firmly encloses the flux guiding element 24 of the magnetic part 16.
- a second guide 42 for the armature 22 is fixed to the smallest diameter of the holding element 40 lying inside the hydraulic part 18. This guide 42 also forms an end stop to limit the lifting movement of the armature 22.
- a continuous longitudinal recess 44 running in the direction of its longitudinal axis, into which two transverse channels 46, 48 running one above the other open at right angles.
- the first transverse channel 46 facing the magnetic part 16 is designed like a blind hole and forms the return channel R of the pressure control valve 12, while the transverse channel 48 facing away from the magnetic part 16 penetrates the hydraulic part 18 and acts as the working channel A.
- the front end of the longitudinal recess 44 forms a designated P
- Inlet channel 50 for the hydraulic part 18. opens into the working channel A when the valve seat 34 is open, while the pressure medium connection between the working channel A and the return channel R is interrupted. In the case of electrically controlled coil 20, these ratios are reversed accordingly, i. H. there is a pressure medium connection between the return channel R and the working channel A, while the inlet channel P is shut off.
- the channels 46, 48, 50 of the pressure control valve 12 are identical to The channels 46, 48, 50 of the pressure control valve 12.
- the first sealing element 52 separating the inlet channel P from the working channel A is concerned is a conventional O-ring held on a filter cage 56.
- the annular filter cage 46 which is made of plastic resistant to pressure medium, is pushed onto the end section of the hydraulic part 18 and has a filter fabric covering the opening cross section of the working channel A. In this way, impurities are filtered out of the pressure medium flowing from working channel A to a hydraulic consumer (not shown).
- the second sealing element 54 which separates the working channel A from the return channel R, consists of an O-ring cross-section 58 with a sealing function and an integrally molded membrane 60 with a thickened end 62.
- the sealing element 54 is also made of pressure-medium-resistant, elastic material with good sealing properties Manufactured so that the membrane 60 with its thickened end 62 can be clamped between the filter cage 56 and a housing-side shoulder of the hydraulic part 18.
- an annular pressure chamber 64 is closed off from the environment. The interior of this pressure chamber 64 is filled with air.
- the membrane 60 is located in the recess 48 'of the receiving device 14 which is assigned to the working channel A. Because of its deformability and thus the variability of the volume of the pressure chamber 64 enclosed by it, the latter is capable of pressure pulsations as they occur in the
- the sealing element 54 designed according to the invention a hydraulic capacity is thus created in the working channel A, without the required space requirement, the number of individual parts or to significantly change the required assembly effort.
- the rigidity of the membrane 60 could be increased by a spring element (not shown) that can be arranged in the interior of the pressure chamber 64. By varying the spring elements used, a damping characteristic adapted to the application could be set.
- the second exemplary embodiment according to FIG. 1 differs from the first exemplary embodiment in that the pressure chamber 60, which can be changed in volume, is connected via a ventilation 66 to the recess 46 'of the receiving device 14 which is assigned to the return channel R of the pressure control valve 12. As a further factor influencing the damping characteristic, the pressure chamber 60, which can be changed in volume, is connected via a ventilation 66 to the recess 46 'of the receiving device 14 which is assigned to the return channel R of the pressure control valve 12.
- Ventilation 66 can be designed as a damping throttle. It would also be conceivable to provide a plurality of such vents 66 or to divide the pressure chamber 64 into a plurality of subchambers.
- a 3/2-way proportional valve is preferably used as the pressure control valve 12, the armature 22 of which can be moved into any intermediate positions by the magnetic part 16. This also means
- Switch positions can be represented, in which both valve seats 34 and 36 are open at the same time.
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Magnetically Actuated Valves (AREA)
- Diaphragms And Bellows (AREA)
- Control Of Fluid Pressure (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10024700A DE10024700A1 (de) | 2000-05-18 | 2000-05-18 | Vorrichtung zur Regelung des Drucks in einem Hydraulikkreis |
DE10024700 | 2000-05-18 | ||
PCT/DE2001/001326 WO2001088650A1 (de) | 2000-05-18 | 2001-04-05 | Vorrichtung zur regelung des drucks in einem hydraulikkreis |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1290519A1 true EP1290519A1 (de) | 2003-03-12 |
Family
ID=7642735
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01929320A Withdrawn EP1290519A1 (de) | 2000-05-18 | 2001-04-05 | Vorrichtung zur regelung des drucks in einem hydraulikkreis |
Country Status (5)
Country | Link |
---|---|
US (1) | US6719006B2 (de) |
EP (1) | EP1290519A1 (de) |
JP (1) | JP2003533811A (de) |
DE (1) | DE10024700A1 (de) |
WO (1) | WO2001088650A1 (de) |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10163235A1 (de) * | 2001-12-21 | 2003-07-10 | Daimler Chrysler Ag | Elektromagnetventil, insbesondere für Automatikgetriebe |
US7320334B1 (en) | 2002-04-03 | 2008-01-22 | Hydro-Gear Limited Partnership | Valve Assembly |
US6964280B1 (en) * | 2002-04-03 | 2005-11-15 | Hydro-Gear Limited Partnership | Valve assembly for use in a hydraulic component |
DE10243507A1 (de) * | 2002-09-19 | 2004-04-01 | Robert Bosch Gmbh | Druckregelventil und Verfahren zur Herstellung eines Druckregelventils |
US6880570B2 (en) * | 2003-08-14 | 2005-04-19 | Delphi Technologies, Inc. | Vehicle actuator |
US7165574B2 (en) * | 2003-09-03 | 2007-01-23 | Keihin Corporation | Solenoid valve with cylindrical valve guide for the spherical valve element at the pressure inlet |
DE10342892B4 (de) | 2003-09-17 | 2014-07-31 | Zf Friedrichshafen Ag | Proportional-Druckregelventil |
DE10347419B4 (de) * | 2003-10-13 | 2007-10-11 | Robert Bosch Gmbh | Druckregler |
DE102005030959A1 (de) * | 2005-06-30 | 2007-01-11 | Robert Bosch Gmbh | Elektrisch betätigbares Ventil |
JP2007057062A (ja) * | 2005-08-26 | 2007-03-08 | Nidec Tosok Corp | 電磁弁 |
DE102005043967A1 (de) * | 2005-09-15 | 2007-03-29 | Robert Bosch Gmbh | Druckregelventil mit integriertem Dämpferelement |
US8127791B2 (en) * | 2005-12-21 | 2012-03-06 | Saturn Electronics & Engineering, Inc. | Solenoid operated fluid control valve |
DE102008000106A1 (de) * | 2008-01-21 | 2009-07-23 | Zf Friedrichshafen Ag | Druckregelventilvorrichtung |
EP2527944B1 (de) * | 2011-05-27 | 2020-11-25 | SVM Schultz Verwaltungs-GmbH & Co. KG | Elektromagnetisches Druckregelventil |
DE102011079366A1 (de) | 2011-07-19 | 2013-01-24 | Zf Friedrichshafen Ag | Druckregelventilvorrichtung mit einer Strömungsführungseinrichtung |
DE102011087264B4 (de) * | 2011-11-29 | 2023-01-19 | Zf Friedrichshafen Ag | Druckregelventilvorrichtung |
US9851003B2 (en) * | 2014-10-06 | 2017-12-26 | Sonnax Industries, Inc. | Remanufactured solenoid valves and devices for remanufacturing solenoid valves |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3399689A (en) * | 1965-10-18 | 1968-09-03 | Victor Equipment Co | Control valve including independently operable pilot valves |
FR2220166A5 (de) * | 1973-03-02 | 1974-09-27 | Seap Clesse Expl Atel Pecq | |
FR2446936A1 (fr) * | 1979-01-18 | 1980-08-14 | Renault | Dispositif traducteur electrohydraulique permettant notamment de controler une pression dans une transmission automatique |
DE4016990A1 (de) * | 1990-01-20 | 1991-07-25 | Bosch Gmbh Robert | Elektromagnetisch betaetigbares ventil |
US5836335A (en) * | 1991-08-19 | 1998-11-17 | Fluid Power Industries, Inc. | Proportional pressure control valve |
DE4132816C2 (de) * | 1991-09-06 | 2002-06-13 | Bosch Gmbh Robert | Elektromagnetventil |
FR2711742B1 (fr) * | 1993-10-29 | 1996-01-05 | Alliedsignal Europ Services | Module de commande de pression dans un circuit hydraulique. |
DE19733660A1 (de) * | 1997-08-04 | 1999-02-25 | Bosch Gmbh Robert | Elektromagnetisches Druckregelventil |
DE19829549B4 (de) * | 1998-06-18 | 2009-01-15 | Robert Bosch Gmbh | Elektromagnetisch betätigbares Druckregelventil |
-
2000
- 2000-05-18 DE DE10024700A patent/DE10024700A1/de not_active Withdrawn
-
2001
- 2001-04-05 JP JP2001584980A patent/JP2003533811A/ja active Pending
- 2001-04-05 WO PCT/DE2001/001326 patent/WO2001088650A1/de not_active Application Discontinuation
- 2001-04-05 US US10/048,736 patent/US6719006B2/en not_active Expired - Fee Related
- 2001-04-05 EP EP01929320A patent/EP1290519A1/de not_active Withdrawn
Non-Patent Citations (1)
Title |
---|
See references of WO0188650A1 * |
Also Published As
Publication number | Publication date |
---|---|
WO2001088650A1 (de) | 2001-11-22 |
DE10024700A1 (de) | 2001-11-29 |
JP2003533811A (ja) | 2003-11-11 |
US20020134228A1 (en) | 2002-09-26 |
US6719006B2 (en) | 2004-04-13 |
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Legal Events
Date | Code | Title | Description |
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PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
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17P | Request for examination filed |
Effective date: 20021218 |
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AK | Designated contracting states |
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RBV | Designated contracting states (corrected) |
Designated state(s): DE ES FR GB IT SE |
|
17Q | First examination report despatched |
Effective date: 20040604 |
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GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
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GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
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STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
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18D | Application deemed to be withdrawn |
Effective date: 20061031 |