EP2449268B1 - Ensemble à soupape - Google Patents

Ensemble à soupape Download PDF

Info

Publication number
EP2449268B1
EP2449268B1 EP10739848A EP10739848A EP2449268B1 EP 2449268 B1 EP2449268 B1 EP 2449268B1 EP 10739848 A EP10739848 A EP 10739848A EP 10739848 A EP10739848 A EP 10739848A EP 2449268 B1 EP2449268 B1 EP 2449268B1
Authority
EP
European Patent Office
Prior art keywords
valve
switching
directional control
tank
directional
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.)
Not-in-force
Application number
EP10739848A
Other languages
German (de)
English (en)
Other versions
EP2449268A1 (fr
Inventor
Dirk-Walter Herold
Holger Engert
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP2449268A1 publication Critical patent/EP2449268A1/fr
Application granted granted Critical
Publication of EP2449268B1 publication Critical patent/EP2449268B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • 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
    • F15B13/042—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by fluid pressure

Definitions

  • the invention relates to a valve arrangement with a pilot-operated valve according to the preamble of patent claim 1.
  • Such a valve arrangement has a continuously adjustable main control valve as a main stage and an electro-magnetically actuated pilot valve as a precursor.
  • the main control valve is used to control a pressure medium connection between a pressure source, a drain and a consumer in the form of a hydraulic cylinder.
  • a main control spool of the main control valve is controllable via two control chambers and has a spring return.
  • the control chambers for adjusting the main control piston are controlled via the pilot valve. About this the control rooms are then connected to the drain or the pressure medium source.
  • the disadvantage here is that with increasing nominal size of the pilot valve and the production costs and production costs increase.
  • the present invention seeks to provide a cost-effective, dynamic pilot-operated valve.
  • a pilot-operated valve of a valve arrangement has a main and a preliminary stage.
  • the main stage has a directional valve - for example, a seat valve - with at least one control chamber, which is connectable via a directional control valve of the preliminary stage with a pressure source or a drain or tank.
  • At least one switching valve is arranged parallel to the directional control valve of the preliminary stage.
  • This solution has the advantage that a high pressure medium throughput between the at least one control chamber of the main stage and the tank or the pressure medium source - depending on how the switching valve is arranged - is made possible by the switching valve.
  • a high pressure medium throughput and short positioning times of the main stage can be achieved.
  • a pilot valve of the precursor with a small nominal size has low manufacturing costs, high dynamics and high robustness. Since the switching valve is also extremely inexpensive, a pilot-operated valve according to the invention overall is extremely cost-effective and robust.
  • the directional control valve of the preliminary stage can be a proportional directional control valve or continuous directional control valve.
  • control chamber of the directional control valve of the main stage via the proportional directional control valve of the precursor with the pressure source or the tank and at least one switching valve to the tank and / or via at least one switching valve to the pressure source connected.
  • this has an input and an output port.
  • a pressure medium connection between the input and the output terminal is locked in a spring-biased blocking position.
  • the input and the output port are in pressure medium connection (it would be conceivable to form the switch positions exactly the reverse).
  • a plurality of switching valves may be arranged in the preliminary stage for connecting the control chamber to the tank.
  • a plurality of switching valves may be provided.
  • a switching valve has two inlet and two outlet connections. In a spring-biased basic position, the two inlet connections and the two outlet connections and in a switching position, in each case one inlet and one outlet connection are connected.
  • two flow paths between the control chamber of the directional control valve of the main stage and the tank or the pressure medium source can run, at the same time low space requirement of the switching valve.
  • the directional control valve of the main stage has two control chambers, via which a main control piston is proportionally adjustable via the precursor.
  • a respective control chamber can be connected to the pressure source via at least one first switching valve and to the tank via at least one second switching valve.
  • FIG. 1 a hydraulic circuit diagram of a valve arrangement according to the invention with a pilot-operated valve according to a first embodiment is shown.
  • the valve is a 2/2-way valve 1, which serves to open and close a pressure medium connection between a hydraulic accumulator 2 and a pressure source and a consumer in the form of a hydraulic cylinder 4.
  • the directional control valve 1 is used as a main stage 6, which is pre-controlled by a precursor 8.
  • the hydraulic accumulator 2 is connected via a pressure line 10 to a first working port 12 of the directional control valve 1 of the main stage 6.
  • a working line 16 is connected, which is connected to a cylinder chamber 18 of the hydraulic cylinder 4.
  • the cylinder chamber 18 is separated by a guided in the hydraulic cylinder 4 piston 20 by an annular space 22 which is penetrated by a piston 20 connected to the piston rod 24.
  • the directional control valve 1 has a valve seat 26 associated with stepped piston 28.
  • a remote from the valve seat 26 control surface 30 of the stepped piston 28 defines a control chamber 32 which is connectable via the precursor 8 with the pressure line 10 and thus with the hydraulic accumulator 2 or with a tank 34.
  • a closing spring 36 is arranged, which acts on the stepped piston 28 via the control surface 30 in the direction of the valve seat 26 with a spring force.
  • a displacement measuring piston 38 of a displacement transducer 40 is supported for determining the stroke path of the stepped piston 28.
  • the stepped piston 28 has a radially stepped-back portion 42 which rests on the valve seat 26 in the closed state of the directional control valve 1. Due to the reclassified portion 42, the stepped piston 28 has a repellent from the control surface 30 annular surface 44 and an end face 46. In the closed state of the directional control valve 1, the annular surface 44 in pressure fluid communication with the working port 12 and thus the pressure line 10 and the end face 46 with the working port 14 and thus the working line 16 connected.
  • a control line 48 is connected to the control chamber 32 of the directional control valve 1, which is connected to a working port A of a directional valve 50 of the precursor 8.
  • This is an electromagnetically via a proportional solenoid 52 - conceivable would be a servo or piezoelectric element - operable Proportional directional valve or 3/2-way valve.
  • the directional control valve 50 further has a pressure port P, which is in fluid communication with the pressure line 10 via a connecting line 54. Via a tank connection T, the directional control valve 50 is connected to a tank line 56 connected to the tank 34.
  • a pilot spool of the directional control valve 50 is biased with a valve spring 57 in a basic position a, in which the pressure port P is connected to the working port A - depending on the use, the basic position a could also be designed differently.
  • About the proportional solenoid 52 of the pilot spool is displaced in the direction of working positions b, in which the working port A is connected to the tank port T.
  • two switching valves 58, 60 are arranged in the preliminary stage 8 parallel to the directional control valve 50, via which a pressure medium connection between the control chamber 32 of the directional control valve 1 and the tank 34th is on and zuu Kunststoffbar.
  • the switching valves 58, 60 are electromagnetically adjustable 2/2-way valves and each have a connected to the control line 48 working port A and connected to the tank line 56 tank port T.
  • a valve spool of Switching valve 58 or 60 is biased by a valve spring 62 in a blocking position x, in which the pressure medium connection between the tank port T and the working port A is disconnected.
  • an electromagnetically actuated actuator 64 the valve spool of the switching valve 58 or 60 can be switched to an open position y, in which the working port A is connected to the tank port T.
  • the control chamber 32 is connected via the precursor 8 to the tank 34.
  • the valve spool of the switching valve 58 and 60 is additionally brought into the open position y, whereby a faster discharge of the control chamber 32 to the tank 34 takes place.
  • the second switching valve 58 or 60 is additionally brought into the open position y. The positioning time can thus be shortened by additional operation of one or both switching valves 58, 60.
  • the directional control valve 50 and the switching valves 58 and 60 are de-energized in the normal position a or blocking position x.
  • the control chamber 32 is then connected via the directional control valve 50 to the hydraulic accumulator 2, whereby the stepped piston 28 via the control surface 30 with the pressure of the hydraulic accumulator 2 and the Spring force of the closing spring 36 is moved in the closing direction against the pressure applied to the annular surface 44 and the end face 46.
  • a short positioning time of the stepped piston 28 of the directional control valve 1 is required, for example, when the hydraulic cylinder 4 is used for injecting injection molding agent into an injection molding machine.
  • a rapid pressurization of the piston 20 of the hydraulic cylinder 4 via the cylinder chamber 18 is necessary and thus a fast pressure medium connection between the cylinder chamber 18 connected to the working line 16 and connected to the hydraulic accumulator 2 pressure line 10 is necessary.
  • FIG. 2 represents in a hydraulic circuit diagram, the valve assembly according to a second embodiment.
  • the precursor 8 has two additional switching valves 66, 68. These serve to quickly close the directional control valve 1 of the main stage 6.
  • the switching valves 66 and 68 each have a connected to the control line 48 working port A and connected to the connecting line 54 and thus to the pressure line 10 pressure port P.
  • the further embodiment of the switching valves 66 and 68 corresponds to the one in FIG. 1 explained switching valves 58 and 60th
  • the switching valves 66, 68 is a shorter positioning time of the stepped piston 28 in the closing direction, compared to the first embodiment FIG. 1 , allows.
  • the switching valves 58, 60 and the directional control valve 50 of the precursor 8 are energized and the switching valve 66 energized, whereby the control chamber 32 of the directional control valve 1 of the main stage 6 via the switching valve 66 and the directional control valve 50 with the pressure line 10 and thus with the hydraulic accumulator 2 is in fluid communication.
  • an increased pressure medium throughput of the hydraulic accumulator 2 is created to the control chamber 32, resulting in a shortened positioning time.
  • the switching valve 68 can be actuated, whereby the pressure medium throughput is further increased.
  • FIG. 3 shows a hydraulic circuit diagram of the valve assembly according to a third embodiment. This corresponds approximately to the first embodiment FIG. 1 , wherein instead of the switching valves 58, 60, a single switching valve 70 is arranged in the preliminary stage parallel to the directional control valve 50.
  • the switching valve 70 is a 4/2-way valve with two working ports A1, A2 or feed ports connected to the control line 48 and two tank ports T1, T2 or drain ports connected to the tank line 56.
  • a valve spool of the switching valve 70 is biased by a valve spring 72 in a basic position h, in which the two working ports A1, A2 and the two tank ports T1, T2 are in fluid communication.
  • the valve slide can be switched into an open position i, in which the working port A1 is in pressure-fluid communication with the tank port T2 and the working port A2 is in fluid communication with the tank port T1.
  • the pressure medium flow rate over the switching valve 70 may, for example, the sum of the two pressure medium volume flow rates of the switching valves 58 and 60 from FIG. 1 correspond, with only a single switching valve 70 is necessary and, for example, space can be saved.
  • the valve slide of the switching valve 70 is actuated into the open position i in addition to the directional valve 50 connected to the working position b.
  • the control line 48 is connected via the switching valve 70 on the one hand via the working port A1 and the tank port T2 and the other via the working port A2 and the tank port T1 to the tank line 56, whereby the control chamber 32 of the directional control valve 1 and the tank 34th in pressure medium connection.
  • FIG. 4 is shown in a hydraulic circuit diagram, the valve assembly according to a fourth embodiment.
  • This has in addition to the third embodiment FIG. 3 a switching valve 76 corresponding to the switching valve 70.
  • the switching valve 76 serves to reduce the positioning time of the stepped piston 28 of the directional control valve 1 of the main stage 6 in the closing direction.
  • a valve spool of the switching valve 76 is biased by a valve spring 78 in a basic position k, in which the two working ports A1, A2 and the two pressure ports P1, P2 are interconnected.
  • an electromagnetically actuated actuator 80 of the valve spool of the switching valve 76 is in the open position I switchable, in which the working port A1 to the pressure port P2 and the working port A2 to the pressure port P1 is in fluid communication, whereby the pressure line 10 via the connecting line 54, the pressure ports P1, P2 and the working ports A1, A2 is connected to the control line 48 and thus to the control chamber 32 of the directional control valve 1.
  • FIG. 5 apparently in a hydraulic circuit diagram, a valve assembly in a fifth embodiment.
  • the main stage 6 in this case has a 4/3-way valve or continuous-way valve 82 with two control chambers 84, 86 for pressurizing and moving a main control piston 82 of the directional control valve.
  • a 4/3-way valve for example, a 2/2-way or 3/2-way valve can be used.
  • the control chambers 84, 86 can each be connected via the precursor 8 to the tank 34 or a pressure medium source 88.
  • the pre-stage 8 has an electromagnetically continuous proportional magnets 90, 92 - is conceivable, for example, a servo or piezoelectric element or a linear motor - adjustable 4/3-way valve 94 and four parallel arranged switching valves 96, 98, 100, 102.
  • the directional control valve 94th is connected via a pressure port P to a pressure line 104 connected to the pressure medium source 88. With a tank connection T, the directional control valve 94 is connected to a tank line 106 connected to the tank 34.
  • a first working port A of the directional control valve 94 is connected via a first working line 108 with the in the FIG. 5 left control chamber 84 of the directional control valve 82 and a second working port B is connected via a second working line 110 to the right control chamber 86 in fluid communication.
  • a valve spool of the directional control valve 94 of the precursor 8 is centered via two valve springs 112, 114 in a basic position r and by energizing the proportional solenoid 90 in the direction of working positions m, in which the working port A to the tank port T and the working port B to the pressure port P in Pressure medium connection are, displaceable. In the basic position r, both working connections to the tank connection T are in pressure medium connection.
  • the valve spool of the directional control valve 94 in the direction of working positions n is displaceable, in which the working port A with the pressure port P and the working port B with the tank port T is in fluid communication.
  • the directional control valve 82 of the main stage 6 has in the FIG. 5 four connections, these are not explained in detail.
  • Essential in the directional control valve 82 is that the main control piston via the control chambers 84, 86 with a shortened positioning time by the switching valves 96 to 102 is displaceable.
  • the switching valves 96 to 102 correspond to those of the first two embodiments FIG. 1 and 2 ,
  • the switching valve 100 is connected to the working line 110 via a working port A and to the pressure line 104 via a pressure flow P.
  • the switching valve 102 is connected to the working line 110 and to a tank connection T with the tank line 106.
  • the right-hand control chamber 86 of the directional control valve 82 can thus be connected to the pressure medium source 88 and via the switching valve 102 to the tank 34.
  • the switching valve 98 is connected via a working port A to the working line 108 and via a pressure port P to the pressure medium source 88 and the switching valve 96 via a working port A to the working line 108 and a tank port T to the tank 34.
  • the left control chamber 84 of the directional control valve 82 is thus connected via the switching valve 98 with the pressure medium source 88 and with the switching valve 96 to the tank 34.
  • the main control piston of the directional control valve 82 of the main stage 6 is biased via valve springs 116, 118 in a blocking position u, displaceable via the control chamber 86 in the direction of working positions w and over the control chamber 84 in the direction of working positions v.
  • a displacement sensor 120 measures the displacement of the main control piston.
  • the switching valves 98 and 102 are switched to blocking positions x, whereby the control chambers 84 and 86 are controlled only via the directional control valve 94 of the precursor 8. For an accurate positioning of the main control piston of the directional control valve 82 is possible.
  • the control chamber 86 is correspondingly connected via the directional control valve 94 to the pressure source 88 and the control chamber 84 to the tank 34. To shorten the positioning time then the switching valve 96 and the switching valve 100 are opened.
  • the switching valves from the FIGS. 1 to 5 have an extremely short switching time.
  • the actuators 74 and 80 of the switching valves 70 and 76 of the Figures 3 and 4 For example, they are designed for 12 volts. In experiments it has been shown that an energization with overvoltage - for example, 24 volts - is possible, whereby advantageously the switching time of the switching valves 70 and 76 is further reduced.
  • the switching valves 58, 60; 66, 68; 96, 98, 100, 102 in the FIGS. 1 . 2 and 5 can also be designed as a 3/2-way valve.
  • a working port A in a first switching position with a sequence and in a second switching position with a pressure source can be connected.
  • a pilot operated valve with a main and a preliminary stage.
  • the main stage has a directional control valve, which is designed for example as a seat or slide valve.
  • a directional control valve has at least one control chamber, which is connected via a directional control valve of the preliminary stage with a pressure source or a tank.
  • a switching valve is arranged parallel to the directional control valve of the precursor. This is extremely inexpensive and robust, has a low switching time and allows an increase in the pressure medium throughput through the precursor.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Multiple-Way Valves (AREA)
  • Servomotors (AREA)
  • Fluid-Driven Valves (AREA)

Claims (10)

  1. Agencement de soupape comprenant une soupape pilote qui présente un étage principal et un étage pilote (6, 8), l'étage principal (6) ayant un distributeur (1 ; 82) avec au moins un espace de commande (32 ; 84, 86), qui peut être connecté par le biais d'un distributeur (50 ; 94) de l'étage pilote (8) à une source de pression (2 ; 88) ou à une sortie (34), caractérisé en ce que parallèlement au distributeur (50 ; 94) de l'étage pilote (8) est disposée au moins une soupape de commutation (58, 60, 66, 68 ; 70, 76 ; 96, 98, 100, 102).
  2. Agencement de soupape selon la revendication 1, dans lequel le distributeur (50, 94) de l'étage pilote (8) est un distributeur proportionnel.
  3. Agencement de soupape selon la revendication 2, dans lequel l'espace de commande du distributeur (1 ; 82) de l'étage principal (6) peut être connecté par le biais du distributeur (50 ; 94) de l'étage pilote (8) à la source de pression (2 ; 88) ou à la sortie (34) et par le biais d'au moins l'une des soupapes de commutation (58, 60 ; 70 ; 96, 102) à la sortie (34) et/ou par le biais d'au moins l'une des soupapes de commutation (66, 68, 76, 98, 100) à la source de pression (2, 88).
  4. Agencement de soupape selon l'une quelconque des revendications précédentes, dans lequel la soupape de commutation (58, 60, 66, 68, 96, 98, 100, 102) a un raccord d'entrée et un raccord de sortie (A, T ; P, A), une connexion de fluide sous pression entre le raccord d'entrée et le raccord de sortie (A, T ; P, A) étant bloquée dans une position de blocage précontrainte par ressort, et le raccord d'entrée et le raccord de sortie (A, T ; P, A) étant en liaison de fluide sous pression dans une position d'ouverture.
  5. Agencement de soupape selon l'une quelconque des revendications précédentes, dans lequel le distributeur (1) de l'étage principal (6) a un espace de commande (32) qui peut être connecté par le biais de deux soupapes de commutation (58, 60) à la sortie (34).
  6. Agencement de soupape selon l'une quelconque des revendications précédentes, dans lequel l'espace de commande (32) du distributeur (1) de l'étage principal (6) peut être connecté par le biais de deux soupapes de commutation (66, 68) à la source de pression (2).
  7. Agencement de soupape selon l'une quelconque des revendications 1 à 4, dans lequel la soupape de commutation (70, 76) présente deux raccords d'alimentation et deux raccords d'écoulement (A1, A2, P1, P2, T1, T2), les deux raccords d'alimentation (A1, A2 ; P1, P2) et les deux raccords d'écoulement (T1, T2 ; A1, A2) étant connectés dans une position de base précontrainte par ressort (h, k) et à chaque fois un raccord d'alimentation étant connecté à un raccord d'écoulement (A1, A2, P1, P2, T1, T2) dans une position de commutation (i, 1).
  8. Agencement de soupape selon la revendication 7, dans lequel la soupape de commutation (70) est connectée par le biais des raccords d'alimentation (A1, A2) à l'espace de commande (32) et par le biais des raccords d'écoulement (T1, T2) au réservoir (34) et/ou la soupape de commutation (76) est connectée par le biais des raccords d'alimentation (P1, P2) à la source de pression (2) et par le biais des raccords d'écoulement (A1, A2) à l'espace de commande (32).
  9. Agencement de soupape selon l'une quelconque des revendications 1 à 4 ou 7, dans lequel le distributeur (82) de l'étage principal (6) présente deux espaces de commande (84, 86) par le biais desquels un piston de commande principal peut être déplacé de manière proportionnelle par le biais de l'étage pilote (8).
  10. Agencement de soupape selon la revendication 9, dans lequel chaque espace de commande (84, 86) du distributeur (82) de l'étage principal (6) peut être connecté par le biais d'au moins une première soupape de commutation (98, 100) à la source de pression (88) et par le biais d'au moins une deuxième soupape de commutation (96, 102) au réservoir (34).
EP10739848A 2009-06-29 2010-06-29 Ensemble à soupape Not-in-force EP2449268B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009030888A DE102009030888A1 (de) 2009-06-29 2009-06-29 Ventilanordnung
PCT/EP2010/003851 WO2011000515A1 (fr) 2009-06-29 2010-06-29 Ensemble à soupape

Publications (2)

Publication Number Publication Date
EP2449268A1 EP2449268A1 (fr) 2012-05-09
EP2449268B1 true EP2449268B1 (fr) 2013-01-23

Family

ID=42767971

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10739848A Not-in-force EP2449268B1 (fr) 2009-06-29 2010-06-29 Ensemble à soupape

Country Status (4)

Country Link
EP (1) EP2449268B1 (fr)
CN (1) CN102472299B (fr)
DE (1) DE102009030888A1 (fr)
WO (1) WO2011000515A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012016838B4 (de) 2012-08-27 2023-12-28 Robert Bosch Gmbh Hydraulische Steuerschaltung für eine hydraulisch betätigte Gießeinheit

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012020066A1 (de) 2012-10-12 2014-04-17 Robert Bosch Gmbh Ventilanordnung
CN111550465B (zh) * 2020-05-15 2022-05-20 北京林克富华技术开发有限公司 控制阀组
DE102022113397A1 (de) 2022-05-27 2023-11-30 Festo Se & Co. Kg Steuerung eines Volumenstroms eines Fluids mittels einer Ventilanordnung

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0218901B1 (fr) * 1985-09-06 1991-03-13 Hitachi Construction Machinery Co., Ltd. Système hydraulique de pilotage pour commander une valve de distribution
EP0281635B1 (fr) * 1986-09-09 1991-02-27 Hitachi Construction Machinery Co., Ltd. Soupape
DE4405143C2 (de) 1994-02-18 2002-03-14 Bosch Gmbh Robert Elektrohydraulisches Proportionalwegeventil
US6318234B1 (en) * 2000-06-30 2001-11-20 Caterpillar Inc. Line vent arrangement for electro-hydraulic circuit
DE102004048689B3 (de) * 2004-10-06 2005-10-20 Siemens Ag Zweistufiges Servoventil
JP5244383B2 (ja) * 2005-03-31 2013-07-24 独立行政法人科学技術振興機構 流体シリンダを用いたアクチュエータ及びその制御方法

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012016838B4 (de) 2012-08-27 2023-12-28 Robert Bosch Gmbh Hydraulische Steuerschaltung für eine hydraulisch betätigte Gießeinheit

Also Published As

Publication number Publication date
DE102009030888A1 (de) 2010-12-30
WO2011000515A1 (fr) 2011-01-06
CN102472299A (zh) 2012-05-23
CN102472299B (zh) 2015-07-08
EP2449268A1 (fr) 2012-05-09

Similar Documents

Publication Publication Date Title
EP2638297B1 (fr) Entraînement hydraulique ou pneumatique pour l'actionnement d'un appareil de robinetterie comportant une soupape de réglage ou de commande
EP1598560B1 (fr) Dispositif de soupape hydraulique
EP2602492A2 (fr) Dispositif de commande électro-hydraulique
EP0083688B1 (fr) Soupape d'étranglement proportionnelle pilotée électro-hydrauliquement
EP2449268B1 (fr) Ensemble à soupape
EP1875084B1 (fr) Soupape a tiroirs et dispositif de commande equipe de ladite soupape
EP2268927A1 (fr) Système de commande destiné à commander un distributeur à plusieurs voies
DE4028887C2 (de) Hydraulische Steuereinrichtung
EP2642132A2 (fr) Agencement de soupape pilote hydraulique et agencement de soupape hydraulique en étant équipé
EP2452078B1 (fr) Dispositif constituant une restriction variable pour un écoulement fluidique
EP2891805B1 (fr) Système de commande et soupape de commande pour un tel système de commande
EP1170510A2 (fr) Agencement de contrôle hydraulique pour alimenter en fluide sous pression de préférence plusieurs utilisateurs hydrauliques
DE19909745A1 (de) Hydrostatisches Antriebssystem
WO2016091528A1 (fr) Agencement de soupapes hydraulique, bloc de soupapes hydraulique ayant un tel agencement de soupapes, et mécanisme d'entraînement hydraulique ayant un tel bloc de soupapes hydraulique
WO2016030260A1 (fr) Circuit régulateur de pression
DE4410156B4 (de) Steuereinrichtung für eine Verstellpumpe
EP1369596B1 (fr) Agencement de distributeur hydraulique
EP2921925B1 (fr) Soupape de réduction de pression
DE102014216034A1 (de) Ventilanordnung mit verstellbarer Lastrückmeldung
DE102008059205B4 (de) Bidirektionale Fördervorrichtung
WO2005116457A1 (fr) Dispositif distributeur
DE19535677A1 (de) Einrichtung zur Steuerung eines hydraulischen Motors
DE102012220865A1 (de) Stetig verstellbares Ventil und hydraulische Steueranordnung mit einem derartigen Ventil
DE102022204640A1 (de) Ventilanordnung für den Frontlader eines landwirtschaftlichen Traktors
EP1481167A1 (fr) Dispositif a soupapes

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: 20120130

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR

DAX Request for extension of the european patent (deleted)
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): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR

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

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 595133

Country of ref document: AT

Kind code of ref document: T

Effective date: 20130215

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502010002231

Country of ref document: DE

Effective date: 20130328

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

REG Reference to a national code

Ref country code: NL

Ref legal event code: VDEP

Effective date: 20130123

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

Ref country code: NO

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: 20130423

Ref country code: BG

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: 20130423

Ref country code: LT

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: 20130123

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: 20130504

Ref country code: SE

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: 20130123

Ref country code: IS

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: 20130523

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

Ref country code: SI

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: 20130123

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: 20130123

Ref country code: LV

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: 20130123

Ref country code: PL

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: 20130123

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: 20130424

Ref country code: FI

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: 20130123

Ref country code: PT

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: 20130523

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

Ref country code: HR

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: 20130123

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 FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130123

Ref country code: RO

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: 20130123

Ref country code: CZ

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: 20130123

Ref country code: EE

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: 20130123

Ref country code: SK

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: 20130123

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

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: 20130123

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

BERE Be: lapsed

Owner name: ROBERT BOSCH G.M.B.H.

Effective date: 20130630

26N No opposition filed

Effective date: 20131024

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

Ref country code: MC

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: 20130123

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502010002231

Country of ref document: DE

Effective date: 20131024

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20140228

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: 20130630

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

Ref country code: IE

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

Effective date: 20130629

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

Ref country code: FR

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

Effective date: 20130701

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

Effective date: 20140629

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

Ref country code: MT

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: 20130123

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

Ref country code: SM

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: 20130123

Ref country code: GB

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

Effective date: 20140629

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: 20130123

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

Ref country code: HU

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

Effective date: 20100629

Ref country code: LU

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

Effective date: 20130629

Ref country code: MK

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: 20130123

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 595133

Country of ref document: AT

Kind code of ref document: T

Effective date: 20150629

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

Ref country code: AT

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

Effective date: 20150629

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

Ref country code: AL

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: 20130123

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

Ref country code: DE

Payment date: 20200824

Year of fee payment: 11

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

Ref country code: IT

Payment date: 20200630

Year of fee payment: 11

Ref country code: CH

Payment date: 20200630

Year of fee payment: 11

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 502010002231

Country of ref document: DE

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

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: 20210630

Ref country code: DE

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

Effective date: 20220101

Ref country code: CH

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

Effective date: 20210630

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: 20210629