EP1360419B1 - Distributeur pour la commande independante de la charge d'un consommateur hydraulique en ce qui concerne la direction et la vitesse - Google Patents

Distributeur pour la commande independante de la charge d'un consommateur hydraulique en ce qui concerne la direction et la vitesse Download PDF

Info

Publication number
EP1360419B1
EP1360419B1 EP02702315A EP02702315A EP1360419B1 EP 1360419 B1 EP1360419 B1 EP 1360419B1 EP 02702315 A EP02702315 A EP 02702315A EP 02702315 A EP02702315 A EP 02702315A EP 1360419 B1 EP1360419 B1 EP 1360419B1
Authority
EP
European Patent Office
Prior art keywords
chamber
control
consumer
spool
piston
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 - Lifetime
Application number
EP02702315A
Other languages
German (de)
English (en)
Other versions
EP1360419A1 (fr
Inventor
Peter BÜTTNER
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bosch Rexroth AG
Original Assignee
Bosch Rexroth AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Bosch Rexroth AG filed Critical Bosch Rexroth AG
Publication of EP1360419A1 publication Critical patent/EP1360419A1/fr
Application granted granted Critical
Publication of EP1360419B1 publication Critical patent/EP1360419B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
    • F15B11/161—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors with sensing of servomotor demand or load
    • F15B11/163—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors with sensing of servomotor demand or load for sharing the pump output equally amongst users or groups of users, e.g. using anti-saturation, pressure compensation
    • 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
    • F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
    • F15B13/0416—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor with means or adapted for load sensing
    • F15B13/0417—Load sensing elements; Internal fluid connections therefor; Anti-saturation or pressure-compensation 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/31—Directional control characterised by the positions of the valve element
    • F15B2211/3144—Directional control characterised by the positions of the valve element the positions being continuously variable, e.g. as realised by proportional 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/35—Directional control combined with flow control
    • F15B2211/351—Flow control by regulating means in feed line, i.e. meter-in control
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
    • F15B2211/76—Control of force or torque of the output member
    • 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
    • Y10T137/86493—Multi-way valve unit
    • Y10T137/86574—Supply and exhaust
    • Y10T137/8667—Reciprocating valve
    • Y10T137/86694—Piston valve
    • Y10T137/8671—With annular passage [e.g., spool]
    • 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
    • Y10T137/87177—With bypass
    • Y10T137/87185—Controlled by supply or exhaust valve

Definitions

  • the invention is based on a directional control valve that is used for load-independent control of a hydraulic consumer in terms of direction and speed serves and which has the features from the preamble of claim 1.
  • Such a directional valve is from the data sheet RD 64282 / 10.99 from the applicant known.
  • the directional valve then has a piston bore in a valve housing one from a central position axially in opposite directions sliding control piston with which the pressure medium paths between an inlet chamber, the pressure medium can be supplied from a pressure medium source, two together connected drainage chambers via which pressure medium can be discharged to a tank is, and two consumer chambers are controllable.
  • the control piston points first fine control grooves for opening a connection between a consumer chamber and the inlet chamber and second fine control grooves for opening a connection between a consumer chamber and a drain chamber on.
  • the directional control valve which differ in their design of the control piston.
  • Control piston in its central position from all valve chambers against each other.
  • This Variant can also be described as a variant with a locked middle position.
  • a second variant is a throttled connection in the middle position or residual opening between the two consumer chambers and the drain chambers.
  • This variant can also be used as a variant with a relieved middle position describe.
  • control piston is the variant with a relieved center position compared to the control piston, which in the middle position the existing consumer chambers shuts off, the second fine control grooves extended so far that they protrude into the consumer chambers when the control piston is in the middle position.
  • the disadvantage here is that with valve actuation at the beginning of the opening the first fine control grooves the flow cross-section between the inlet chamber and the one consumer chamber in comparison to the flow cross section between the other consumer chamber and a drain chamber very much is small. A sensitive control and a clamped procedure of the hydraulic Consumer is not possible in this stroke range.
  • the invention has for its object a directional control valve that features the preamble of claim 1 has to develop so that a sensitive one even at the beginning of the opening of the first fine control grooves Control of the hydraulic consumer is possible and that the effort for the design of the fine control grooves is reduced.
  • the desired goal can be with a generic directional valve after the Achieve the invention in that, as in the characterizing part of the claim 1, the relief connection is independent of the second fine control grooves via a recess of the control piston and that when the control piston moves in the sense of a connection Consumer chamber with a drain chamber interrupted the relief connection is before the second fine control grooves open a flow cross section. Accordingly, in the variant with a relieved center position, the second fine control grooves nothing to do with the relief of a consumer chamber. Your Interpretation can therefore be based solely on the desired control of the hydraulic dimensions necessary for the consumer. At a given maximum flow rate, the second fine control grooves for the Valve variant with relieved middle position and for the valve variant with locked Middle position be the same.
  • the recess is in the central position of the control piston directly to both a consumer chamber and a drain chamber is open and is in the event of a displacement of the control piston from the Locked middle position to one of the chambers. So here is the throttled Relief in a short way through the recess alone.
  • the recess can be a recess, which in addition to the Known directional valve already provided recesses on the control piston becomes.
  • a recess which also known directional control valves already have, namely a recess, which serves to report a load pressure, slightly So changed that they bring relief to the consumer chamber can.
  • the relief can take place directly via the recess. This appears in the case of a directional control valve, as is described in DE 38 without a relieved middle position 41 507 C1 or from EP 0 786 598 is known and in which the load message via radial channels of the control piston takes place in the area of the housing webs between the consumer chambers and the drainage chambers are particularly useful. There are there to make the radial channels in the outer mouth area axially only so large that they are both in the middle position of the control piston to the consumer chambers as well as open to the drain chamber.
  • a continuously adjustable directional valve passes through a valve housing 20, that within a load-sensing control for one hydraulic consumer is used, a piston bore 21 through, in which a control piston 22 is axially movable.
  • the length of the spool 22 agrees with the length of the piston bore 21 from one end face 23 to other end face 24 of the valve housing 20.
  • the piston bore 21 is surrounded by five axially spaced control chambers, the inflow of pressure medium to and the drain from a hydraulic consumer serve and their connections to each other controlled by the control piston 22 become.
  • the middle of the five control chambers is the inlet chamber 27.
  • An outlet chamber 32 follows each consumer chamber 28 or 29 or 33, which are not closer to one passing through the valve housing 20 tank channel shown is open.
  • the control piston 22 takes due to two not shown centering springs attached to the end faces 23 and 24 of the valve housing 20 and the piston bore 21 outward-closing lids are housed, one Middle position. In this middle position, two piston collars 34 and 35 lock of the control piston 22, between which there is an inlet chamber 27 Piston neck 36 with circumferential annular groove 37, the two consumer chambers 28 and 29 against the inlet chamber 27.
  • the two piston collars 34 and 35 are so long that they are in the middle position of the control piston, the consumer chambers 28 and 29 also along the housing webs 38 from the drain chambers able to separate.
  • Each piston collar 34 or 35 is followed by another Piston neck 39 or 40 with an annular groove 41 or 42, each in the area a drain chamber is located. Another is connected to the piston neck 40 Piston collar 43 on the spring chamber in the one cover against the drain chamber 33 seals.
  • the distance between the drain chamber 32 and the end face 23 is greater than the distance between the drain chamber 33 and the end face 24 of the valve housing 20.
  • Between the drain chamber 32 and the end face 23 are in the piston bore 21 has three axially spaced annular chambers 44, 45 and 46, the middle of these three chambers being referred to as the load reporting chamber 45 is because from there the load pressure to an assigned to the directional control valve however, not shown individual pressure compensator and, if the load pressure is the highest is reported to a pump controller.
  • The, from the load reporting chamber 45 viewed from, to the end face 23 of the valve housing 20 lying annular chamber 44 can be connected to the input of a pressure relief valve.
  • a pressure relief valve can be connected.
  • the control piston 22 extends to the piston neck 39 following piston section from the front side 23 of the valve housing 20 to in the area of the housing web 47 between the annular chamber 46 and the drain chamber 32.
  • a flat annular groove 49 is screwed into this piston section, via the three ring chambers 44, 45 in the central position of the control piston 22 and 46 are interconnected.
  • a piston collar 48 Between the ring groove 49 and the piston neck 39 there is a piston collar 48, the effective sealing length of which is less than is the width of the annular chamber 46.
  • the piston collar 48 has on the drain chamber 32 facing outer edge two diametrically opposite each other Milling 50 through which the annular chamber 46 and drain chamber 32 with Small opening cross-section are open to each other when the control piston 22 is in its central position.
  • the control piston 22 is out of its central position moved out, the load reporting chamber 45 depending on the direction of movement of the control piston from the annular chamber 44 or from the annular chamber 46 Cut.
  • the load reporting chamber 45 to drain chamber 32 closed by the load reporting chamber 45 from the annular chamber 46 or the annular chamber 46 from the drain chamber 32 is separated.
  • the Cross section becomes larger towards the front edges.
  • the fine control grooves are enough from the front edges only so far into the piston collars that their inner End in the central position of the control piston 22 still a distance from the consumer chambers 28 or 29 has. Are in the central position of the control piston 22 So the consumer chambers via the fine control grooves neither with the inlet chamber 27 still fluidly connected to the adjacent drain chamber 32 or 33.
  • An axial bore 57 passes through the control piston 22 and connects to the two Ends is closed.
  • the control piston 22 has in the region of the annular groove 49 a narrow radial bore 62 which extends from the outside to the axial bore 57 and which acts as a nozzle or throttle.
  • the axial bore 57 is also two Radial bores 58 and 59 crossed, of which the radial bore 58 through the Piston collar 34 and the radial bore 59 through the piston collar 35 of the control piston 22 passes through.
  • the radial bores 58 and 59 are in the axial Seen direction, are still within the extent of the fine control grooves 55 but offset by 90 degrees to these.
  • the connection is over the nozzle action of the radial bore 62 a throttled connection. about the connection can thus be hydraulic fluid in one from the consumer chambers small current flow to the drain chamber 32 and thus to a tank. This relieves the consumer chambers of pressure, so that for example Check or brake valves between the consumer chambers and one hydraulic consumers are arranged to work safely. A burden that is supported on a consumer chamber if there is no check valve, moves slowly.
  • the consumer chambers are relieved without including the fine tax slots 56, so that they can be designed exactly as with a directional control valve without throttled relief of the middle position. From the spool one Such a directional control valve differs from the control piston 22 of the exemplary embodiment of the invention according to FIG. 1 only through the additional blind bores 60 and 61.
  • control piston 22 moves out of the middle position, in the view according to FIG. 1 For example, moved to the right, the blind holes 60 are covered and the flow area between them and the consumer chamber 28 closed before this consumer chamber via the fine control grooves 56 is connected to the drain chamber 32 on the piston collar 34. Is locked also the connection between the annular groove 49 on the control piston 22 and the Drain chamber 32.
  • the radial bore 59 remains to the consumer chamber 29, which is now connected to the inlet chamber 27 via the fine control grooves 55 is open so that a load message is possible.
  • the blind holes 61 covers and the radial bores 58 remain open to the consumer chamber 28.
  • the radial bores 58 and 59 are sufficient except for the outside of the piston collars 34 and 35 and are in the middle position of the control piston 22 covered by the piston bore 21.
  • the throttled For the throttled everyone has discharge of the consumer chambers 28 and 29 in the middle position Piston collar 34 and 35 two opposite, axially extending, Narrow grooves 70 and 71 on the 22 in the central position of the control piston along the housing webs 38 an immediate throttled connection between the consumer chambers and the drainage chambers.
  • the grooves 70 and 71 only extend as far into the consumer chambers and the drain chambers into that fluid communication through them interrupted when the control piston 22 moves from the central position before fine control grooves 55 and 56 open to the consumer chambers.
  • the throttled also takes place Relief for the consumer chambers without the inclusion of fine tax slots 56.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Multiple-Way Valves (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Safety Valves (AREA)

Claims (5)

  1. Un distributeur pour la commande en termes de sens et de vitesse, en particulier indépendamment de la charge, d'un récepteur hydraulique, doté d'un tiroir (22) de commande, qui peut coulisser, à partir d'une position médiane, dans des sens opposés dans la direction axiale à l'intérieur d'un alésage (21) de tiroir dans un corps (20) de valve,
    qui peut commander les voies de cheminement du fluide de pression entre une chambre (27) d'alimentation, pouvant être alimentée en fluide de pression à partir d'une source de fluide de pression, une chambre (32, 33) d'évacuation, permettant d'évacuer le fluide de pression vers un réservoir, et deux chambres (28, 29) de récepteur,
    qui présente de premières entailles (55) de commande précise pour la commande de l'ouverture d'une connexion entre une chambre (28, 29) de récepteur et la chambre (27) d'alimentation et de secondes entailles (56) de commande précise pour la commande de l'ouverture d'une connexion entre une chambre (28, 29) de récepteur et la chambre (32, 33) d'évacuation
    et qui dans sa position médiane établit un connexion de déchargement avec étranglement d'une chambre (28, 29) de récepteur vers la chambre (32, 33) d'évacuation,
    caractérisé en ce que la connexion de déchargement est réalisée par un évidement (60, 61, 70, 71) dans le tiroir (22) de commande, indépendamment des secondes entailles (56) de commande précise, et que la connexion de déchargement est interrompue lors d'un coulissement du tiroir (22) de commande dans le sens d'un raccordement de la chambre (28, 29) de récepteur à la chambre (32, 33) d'évacuation, avant que les secondes entailles (56) de commande précise n'ouvrent de section de débit.
  2. Un distributeur selon la revendication n°1, caractérisé en ce que l'évidement (70, 71), dans la position médiane du tiroir (22) de commande, ouvre immédiatement non seulement sur une chambre (28, 29) de récepteur, mais aussi sur une chambre (32, 33) d'évacuation et, lorsque le tiroir (22) de commande coulisse hors de la position médiane, est isolé de l'une des chambres (28, 29, 32, 33).
  3. Un distributeur selon la revendication n° 1 ou n° 2, caractérisé en ce que l'évidement (60, 61) reste ouvert sur la chambre (28, 29) de récepteur, lorsque le tiroir (22) de commande coulisse dans le sens d'un raccordement d'une chambre (28, 29) de récepteur à la chambre (27) d'alimentation, et que l'évidement (60, 61) est disposé sur un cheminement du fluide servant à la signalisation d'une pression en charge.
  4. Un distributeur selon la revendication n° 3, caractérisé en ce que le cheminement du fluide présente un alésage (58, 59) radial pour la saisie de la pression en charge régnant dans une chambre (28, 29) de récepteur et que l'évidement (60, 61) est formé par un accroissement de la zone d'embouchure, exclusivement, de l'alésage (58, 59) radial.
  5. Un distributeur selon la revendication n° 3 ou n° 4, caractérisé en ce que le tiroir (22) de commande présente, à proximité d'une chambre (28) de récepteur, un premier épaulement (34) de tiroir pourvu de premières entailles (55) de commande précise et de secondes entailles (56) de commande précise puis, s'adjoignant au premier épaulement (34) de tiroir à proximité d'une chambre (32) d'évacuation, une première rainure (41) annulaire, s'y adjoignant, un épaulement (48) de tiroir supplémentaire et, s'y adjoignant, une rainure (49) annulaire supplémentaire, que l'évidement (60) appartient à un premier canal (58) radial du premier épaulement (34) de tiroir, que le tiroir (22) de commande présente un alésage (57) axial, qui est touché par le premier canal (58) radial et qui, à distance axiale du premier canal (58) radial, est touché par un deuxième canal (62) radial débouchant à l'extérieur, dans la rainure (49) annulaire supplémentaire, qu'une chambre (46) annulaire, isolée de la chambre (32) d'évacuation par un épaulement (47) de corps et de largeur supérieure à la largeur active de l'épaulement (48) de tiroir supplémentaire, fait le tour de la périphérie de l'alésage (21) de tiroir et que l'épaulement (48) de tiroir supplémentaire et la chambre (46) annulaire sont disposés l'un relativement à l'autre de façon telle, que la rainure (49) annulaire supplémentaire est ouverte sur la chambre (32) d'évacuation par la chambre (46) annulaire dans la position médiane du tiroir (22) de commande, mais est isolée de la chambre (32) d'évacuation par l'épaulement (48) de tiroir supplémentaire après une brève course, hors de sa position médiane, du tiroir (22) de commande.
EP02702315A 2001-02-17 2002-01-25 Distributeur pour la commande independante de la charge d'un consommateur hydraulique en ce qui concerne la direction et la vitesse Expired - Lifetime EP1360419B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10107532A DE10107532A1 (de) 2001-02-17 2001-02-17 Wegeventil zur lastunabhängigen Steuerung eines hydraulischen Verbrauchers hinsichtlich Richtung und Geschwindigkeit
DE10107532 2001-02-17
PCT/EP2002/000792 WO2002066842A1 (fr) 2001-02-17 2002-01-25 Distributeur pour la commande independante de la charge d'un consommateur hydraulique en ce qui concerne la direction et la vitesse

Publications (2)

Publication Number Publication Date
EP1360419A1 EP1360419A1 (fr) 2003-11-12
EP1360419B1 true EP1360419B1 (fr) 2004-11-03

Family

ID=7674435

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02702315A Expired - Lifetime EP1360419B1 (fr) 2001-02-17 2002-01-25 Distributeur pour la commande independante de la charge d'un consommateur hydraulique en ce qui concerne la direction et la vitesse

Country Status (6)

Country Link
US (1) US6994116B2 (fr)
EP (1) EP1360419B1 (fr)
AT (1) ATE281602T1 (fr)
DE (2) DE10107532A1 (fr)
DK (1) DK1360419T3 (fr)
WO (1) WO2002066842A1 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005060069B4 (de) * 2004-12-17 2015-05-28 Hyundai Motor Company Handventil eines Automatikgetriebes
DE102005050169A1 (de) 2005-06-21 2006-12-28 Bosch Rexroth Ag LS-Steueranordnung und LS-Wegeventil
DE102006040234A1 (de) * 2006-08-28 2008-03-06 Robert Bosch Gmbh LS-Steueranordnung
DE102008008092A1 (de) * 2007-11-28 2009-06-04 Robert Bosch Gmbh Ventilanordnung
WO2010007712A1 (fr) * 2008-07-17 2010-01-21 三菱電機株式会社 Électrovanne pour dispositif de réglage de distribution variable et système de réglage de distribution variable
DE102010053805A1 (de) 2010-12-08 2012-06-14 Robert Bosch Gmbh Wegeventil zur insebondere lastunabhängigen Steuerung eines hydraulischen Verbrauchers hinsichtlich Richtung und Geschwindigkeit
DE102011084932A1 (de) * 2011-10-21 2013-04-25 Zf Friedrichshafen Ag Ventilvorrichtung mit einem mehrere Schaltzungen aufweisenden Ventilgehäuse
DE112017008032T5 (de) * 2017-09-13 2020-07-02 Shimadzu Corporation Steuerventil

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3212522A (en) * 1963-10-11 1965-10-19 Commercial Shearing Series type valves with float position
DE2514624C3 (de) * 1975-04-03 1986-10-23 Danfoss A/S, Nordborg Steuereinrichtung für mindestens einen hydraulisch betriebenen doppeltwirkenden Verbraucher
US4355660A (en) * 1980-04-15 1982-10-26 General Signal Corporation Pneumatically controlled, four position hydraulic valve
DE3841507C1 (fr) * 1988-01-22 1989-06-29 Danfoss A/S, Nordborg, Dk
DE3802672C2 (de) * 1988-01-29 1993-12-16 Danfoss As Hydraulisches Steuerventil mit Druckfühleinrichtung
SE501289C2 (sv) * 1993-06-24 1995-01-09 Voac Hydraulics Boraas Ab Styrorgan för en hydraulisk motor
DE4413216C2 (de) * 1994-04-15 2003-02-06 Bosch Gmbh Robert Hydraulisches Wegeventil
IT1281708B1 (it) * 1996-01-24 1998-02-26 Brevini Hydraulics Spa Dispositivo per l'azionamento di un'utenza idraulica con una velocita' di azionamento indipendente dal carico resistente gravante su tale
DE19800720C2 (de) * 1998-01-12 2001-10-31 Sauer Danfoss Nordborg As Nord Steuerventil für einen hydraulischen Motor
DE19948232A1 (de) * 1999-07-10 2001-01-11 Mannesmann Rexroth Ag Wegeventilscheibe, insbesondere für ein mobiles Arbeitsgerät
DE19957952A1 (de) * 1999-12-02 2001-06-07 Mannesmann Rexroth Ag Hydraulisches Wegeventil zur lastunabhängigen Steuerung eines hydraulischen Verbrauchers von insbesondere einer mobilen Arbeitsmaschine

Also Published As

Publication number Publication date
WO2002066842A1 (fr) 2002-08-29
DE50201462D1 (de) 2004-12-09
ATE281602T1 (de) 2004-11-15
DK1360419T3 (da) 2005-03-14
EP1360419A1 (fr) 2003-11-12
DE10107532A1 (de) 2002-08-29
US6994116B2 (en) 2006-02-07
US20040069359A1 (en) 2004-04-15

Similar Documents

Publication Publication Date Title
EP2220379B1 (fr) Ensemble distributeur hydraulique
DE19507086C2 (de) Wasserhydraulik-Regelventil
WO2001092729A1 (fr) Dispositif de commande hydraulique
EP1108895B1 (fr) Valve hydraulique pour la commande d'un consommateur indépendant de la charge
EP1360419B1 (fr) Distributeur pour la commande independante de la charge d'un consommateur hydraulique en ce qui concerne la direction et la vitesse
EP1984629B1 (fr) Systeme de commande hydraulique a regeneration et soupape de frein d'abaissement
DE3611973C2 (de) Nebenschlußventil
EP0943057B1 (fr) Distributeur pour la commande, independante de la charge, d'un consommateur hydraulique au niveau du sens et de la vitesse
EP0121600B1 (fr) Soupape de commande
DE19948232A1 (de) Wegeventilscheibe, insbesondere für ein mobiles Arbeitsgerät
DE3611244A1 (de) Stromregelventil
EP1381779B1 (fr) Tiroir a balance manometrique situee a l'interieur
DE3011196C2 (fr)
EP1996820B1 (fr) Agencement de soupape hydraulique
EP1729014B1 (fr) Bloc de commande et section de bloc de commande
DE2906670A1 (de) Ventileinrichtung zur lastkompensierten steuerung eines hydraulischen verbrauchers
EP1069317B1 (fr) Tranche de distributeur hydraulique, surtout pour un véhicule automobile
EP1386084B1 (fr) Dispositif de commande hydraulique destine a la commande de la direction et de la vitesse d'un consommateur hydraulique a action simple et distributeur correspondant
EP0123837B1 (fr) Soupape de commande pour un système de commande à haute pression
DE4413216A1 (de) Hydraulisches Wegeventil
EP0624732B1 (fr) Dispositif de commande hydraulique
DE29613700U1 (de) Druckverhältnisventil
EP0877169B1 (fr) Dispositif de commande hydraulique indépendante de la pression de charge d'un moteur à double effet
DE102010053805A1 (de) Wegeventil zur insebondere lastunabhängigen Steuerung eines hydraulischen Verbrauchers hinsichtlich Richtung und Geschwindigkeit
DE4113923C1 (en) Control valve for hydraulic motor - has duct between main valve and motor containing spool valve

Legal Events

Date Code Title Description
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

17P Request for examination filed

Effective date: 20030703

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20041103

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20041103

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20041103

Ref country code: IE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20041103

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REF Corresponds to:

Ref document number: 50201462

Country of ref document: DE

Date of ref document: 20041209

Kind code of ref document: P

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: GERMAN

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050125

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20050125

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050131

Ref country code: MC

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050131

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050131

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20050203

REG Reference to a national code

Ref country code: SE

Ref legal event code: TRGR

REG Reference to a national code

Ref country code: DK

Ref legal event code: T3

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 20050303

NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
REG Reference to a national code

Ref country code: IE

Ref legal event code: FD4D

BERE Be: lapsed

Owner name: BOSCH REXROTH A.G.

Effective date: 20050131

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20050804

ET Fr: translation filed
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20060131

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20060131

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

BERE Be: lapsed

Owner name: *BOSCH REXROTH A.G.

Effective date: 20050131

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050403

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 14

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 15

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 16

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20170124

Year of fee payment: 16

Ref country code: SE

Payment date: 20170125

Year of fee payment: 16

Ref country code: FI

Payment date: 20170120

Year of fee payment: 16

Ref country code: DE

Payment date: 20170329

Year of fee payment: 16

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20170125

Year of fee payment: 16

Ref country code: DK

Payment date: 20170125

Year of fee payment: 16

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20170125

Year of fee payment: 16

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 50201462

Country of ref document: DE

REG Reference to a national code

Ref country code: DK

Ref legal event code: EBP

Effective date: 20180131

REG Reference to a national code

Ref country code: SE

Ref legal event code: EUG

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20180125

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180125

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180801

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180131

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180126

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20180928

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180125

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DK

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180131

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20180125