EP1035331A2 - Distributeur piloté - Google Patents

Distributeur piloté Download PDF

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Publication number
EP1035331A2
EP1035331A2 EP99126259A EP99126259A EP1035331A2 EP 1035331 A2 EP1035331 A2 EP 1035331A2 EP 99126259 A EP99126259 A EP 99126259A EP 99126259 A EP99126259 A EP 99126259A EP 1035331 A2 EP1035331 A2 EP 1035331A2
Authority
EP
European Patent Office
Prior art keywords
control
valve
pressure medium
pilot
valve unit
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.)
Granted
Application number
EP99126259A
Other languages
German (de)
English (en)
Other versions
EP1035331B1 (fr
EP1035331A3 (fr
Inventor
Erwin Kulmann
Karl Troltsch
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 EP1035331A2 publication Critical patent/EP1035331A2/fr
Publication of EP1035331A3 publication Critical patent/EP1035331A3/fr
Application granted granted Critical
Publication of EP1035331B1 publication Critical patent/EP1035331B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F15B13/06—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors
    • F15B13/08—Assemblies of units, each for the control of a single servomotor only
    • F15B13/0803—Modular units
    • F15B13/0832—Modular 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
    • 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
    • F15B13/0401—Valve members; Fluid interconnections therefor
    • F15B13/0405—Valve members; Fluid interconnections therefor for seat valves, i.e. poppet 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
    • 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
    • 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
    • F15B13/06—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors
    • F15B13/08—Assemblies of units, each for the control of a single servomotor only
    • F15B13/0803—Modular units
    • F15B13/0807—Manifolds
    • F15B13/0817—Multiblock manifolds
    • 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
    • F15B13/06—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors
    • F15B13/08—Assemblies of units, each for the control of a single servomotor only
    • F15B13/0803—Modular units
    • F15B13/0821—Attachment or sealing of modular units to each other
    • 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
    • F15B13/06—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors
    • F15B13/08—Assemblies of units, each for the control of a single servomotor only
    • F15B13/0803—Modular units
    • F15B13/0846—Electrical details
    • F15B13/085—Electrical controllers
    • 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
    • F15B13/06—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors
    • F15B13/08—Assemblies of units, each for the control of a single servomotor only
    • F15B13/0803—Modular units
    • F15B13/0846—Electrical details
    • F15B13/0857—Electrical connecting means, e.g. plugs, sockets
    • 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
    • F15B13/06—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors
    • F15B13/08—Assemblies of units, each for the control of a single servomotor only
    • F15B13/0803—Modular units
    • F15B13/0875—Channels for electrical components, e.g. for cables or sensors
    • 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
    • F15B2013/002—Modular valves, i.e. consisting of an assembly of interchangeable components
    • F15B2013/006—Modular components with multiple uses, e.g. kits for either normally-open or normally-closed valves, interchangeable or reprogrammable manifolds

Definitions

  • the invention is based on a pilot-controlled directional valve corresponding to the genus of the two independent claims 1 and 2.
  • One equipped with two such directional valves Valve unit is, for example, from US 5,103,866 already known.
  • this valve unit are the Locking members independently in a common Housing guided and coaxial or parallel to each other arranged.
  • the locking members are among themselves identically designed and with control pistons at their ends different dimensions.
  • In active connection with the seat bodies on the housing side form the locking members two seat valves each.
  • Poppet valves In contrast to the object of the invention Poppet valves have valve openings of the same size and that Piston area of one of the control pistons corresponds in its Area of a valve opening. In the different Switch position lies on the control pistons of the closing elements permanent control pressure on, the reversal takes place through Change in the contacting of the different connections. In total, the entire directional valve has seven different ones Pressure chambers. Its casing is therefore elaborate to manufacture and takes up large construction volume.
  • An extension of this well-known Design for a valve concept that is pressure medium controlled resettable or mechanically resettable pulse valves and switching valves includes and in which the Locking elements can be arranged coaxially or multiaxially, is at most with this construction with considerable Additional effort possible.
  • the precontrollable according to the invention Directional control valve with the characterizing features of claims 1 or 2 the advantage that it is relatively small Construction effort, the formation of a complete valve concept in the above Scope allowed.
  • Different valve variants can be done with simple structural changes realize.
  • the proposed directional valve is made up of several identical parts built and thus requires only small parts and Storage costs.
  • Figure 1 shows a pre-controllable according to the invention
  • Figures 2 to 6 show pilot operated valve units consisting of several directional valves are constructed according to Figure 1, in different designs.
  • Figure 7 the one disclosed in Figure 2 is an example Embodiment of a valve unit as a circuit symbol shown.
  • FIG 1 is a first embodiment of a pilot-controlled directional valve 10 shown.
  • This instructs only schematically illustrated housing 12 in which a continuous and multiple in their inner diameter stepped slide bore 14 is formed. The latter is closed at their ends by plugs 16, wherein in FIG only one stopper 16 is shown as an example.
  • In the Slider bore 14 open transversely to the longitudinal axis running and labeled with the letters P, A and R. Pressure medium channels like a blind hole. The arrival assigned and leading pressure medium under operating pressure Pressure medium channel P and the unpressurized return assigned pressure medium channel R are the pressure medium channel A across from. The latter is with a not drawn Consumers coupled.
  • the Pressure medium channels P, A, R spaced from each other, whereby the consumer-side pressure medium channel A between the Supply of pressure medium channels P and R is located.
  • the opposite arrangement of the Pressure medium channels P and R to A is for the function of the Directional control valve 10 not determining.
  • first Seat body 18 In between the pressure medium channels P and A Wall area of the slide bore 14 is a first Seat body 18 and in the section between the Pressure medium channels A and R is a second seat body 20 arranged. Both seat bodies 18 and 20 are annular executed and point to their facing away from each other End faces on bundles, the valve openings 22, 24 in the Limit seat bodies 18, 20. These valve openings 22 and 24 are of different sizes, the larger one Valve opening 22 the first seat body 18 and the smaller one Valve opening 24 is assigned to the second seat body 20.
  • a slider penetrating both valve openings 22 and 24 26 is axially movable in the slide bore 14.
  • This slide 26 has a thickened diameter Piston 27 with first and second attached thereto Sealing discs 28, 30 and one in diameter withdrawn and connecting the pistons 27 together Coupling section 29.
  • Control piston 32, 34 At the ends of the slide 26 are Control piston 32, 34 of different external dimensions arranged. For assembly reasons, it is adjacent to second seat body 20 lying and larger in diameter Control piston 34 mounted on the slide 26 during the smaller first control piston 32 in one piece with the slide 26 can be trained. Wear both control pistons 32 and 34 in circumferential grooves sealing rings 36 for sealing Control chambers 38, 40 in which the control pistons 32, 34 are guided are.
  • the smaller spool 32 is larger than that Designed valve opening 24 of the smaller seat body 20, likewise, the large control piston 34 takes up a larger area than the valve opening 22 of the large seat body 18.
  • the Area differences result taking into account the Function of the directional control valve 10 described below in Connection with those prevailing under operating conditions Friction and pressure conditions in the directional control valve 10.
  • a reversal of the directional valve 10 in the not shown Switch position takes place by a brief pressure pulse on the first control piston 32.
  • This causes the first to lie down Sealing disk 28 to which the first valve opening 22 limiting collar of the seat body 18 and interrupts the Connection between the pressure medium channel P and the Pressure medium channel A.
  • the Pressure medium channel A through the valve opening 24 of the second Seat body 20 through with the pressure medium channel R coupled.
  • the due to the area difference between the first valve opening 22 and the control piston 32 generated Pressing force on the slide 26 presses the sealing disk 28 against the seat body 18, this pressure force from Operating pressure is dependent and with increasing operating pressure increases.
  • the control chambers 38, 40 are depressurized.
  • control chambers 38 and 40 with Pressure medium for reversing the directional control valve 10 happens via arranged in the housing 12 and in Figure 1 only as dash-dotted lines indicated control channels. This are not recognizable by one in FIG Pilot valve supplied with pressure medium, the Pilot valve itself from the inlet side Supply channels branching off pressure medium channel P - not drawn - can be controlled.
  • FIG. 2 shows a structural unit 44 consisting of a base plate 46, a pilot valve 48 and a valve unit 50.
  • the latter has a block-shaped housing 52, which together with the pilot valve 48 is anchored on the base plate 46.
  • This base plate 46 is perpendicular to the plane of the drawing pressure medium-carrying channels 54 through which the joint supply or disposal, possibly several adjacent units 44 can be done.
  • the base plate 46 is included Stub channels 56 provided the pressure medium connections between the connections of the valve unit 50 and the Create channels 54.
  • the base plate 46 has one continuous cavity 47 in which an electronic Control device 49 is housed. This controls it Pilot valve 48 electronically.
  • the valve unit 50 has a 5/2-way function and does so its housing 52 has two separate directional valves 58 and 60 on.
  • the directional control valve 58 is identical to Directional valve 10 constructed according to Figure 1.
  • that has Coaxial second directional valve 60 a slide 64 the piston 66 with the seat bodies 68 and 70 so-called inner sealing valve forms.
  • At internally sealing valves are the valve openings 72 and 74 surrounding bundles of seat bodies 68, 70, in contrast to external sealing systems according to Figure 1, on each other facing inner sides of this seat body 68, 70 arranged. Accordingly, the pistons 66 are located with their Sealing discs 78, 80 between the two seat bodies 68, 70 and not outside of it.
  • Directional control valve 58 (10) is also that now the connection from the inlet-side pressure medium channel P to the second consumer-side pressure medium channel B from the seat body 68 with the smaller valve opening 72 is controlled while at the pressure medium connection between the pressure medium channel B and R are in the opposite order.
  • Directional control valve 60 is a particularly inexpensive training of the housing 52 with a single, continuous Slide bore 53 reached. Even the arrangement of the Control channels in this housing 52 is proportional easy to implement. In this regard, the Reference made to FIG. 3.
  • the housing 52 is independent of the Control several control channels 90a-e provided.
  • the Control channel 90a establishes a pressure medium connection the control chamber 96, in which in the embodiment two small actuating pistons 32, 82 are arranged together and the control channel 90b that leads to the pilot valve 48 leads.
  • the one leading to the outside of the valve unit 50 Part of the pressure medium channel 90a is only out manufacturing reasons exist and has none function carrying pressure medium. He is after for these reasons locked on the outside, for example not by one drawn plug.
  • another control channel 90c connects this Pilot valve 48 with a branch of the inlet side Pressure medium channel P, which in the slide bore 53 of the Directional valve 58, 60 opens.
  • control channel 90c the pilot valve 48 is supplied with pressure medium.
  • a control channel 90d is provided which, starting from the Pilot valve 48 to that labeled R. return-side pressure medium channel of the directional valve 60 leads.
  • the control channels 90b-d are essentially parallel to slide bore 53.
  • Another control channel 90e lies on that of the control channels 90a-d opposite side of the slide bore 53 and connects the two external control chambers 40 and 100 the directional control valves 58 and 60 with each other. In addition, this leads Control channel 90e also to pilot valve 48.
  • the valve unit 50 shown in FIG. 3 counteracts the pulse valve according to Figure 2 as a changeover valve Pressure fluid provision. That's the two of them Directional control valves 58 and 60 common control chamber 96 over the Control channels 90a and 90b permanently with operating pressure acted upon. This results in the control pistons 32 and 82 the two directional valves 58, 60 in the basic position shown. For reversal the valve unit 50 become the external control chambers 40 and 100 of the two way valves 58, 60 also with Operating pressure applied. This is done by the Pilot valve 48 via the control channel 90e.
  • the one from the Control pistons 34 and 84 of directional control valves 58 and 60 The pressure force caused is different due to the large pressurized areas larger than that of the Diameter smaller control piston 32, 82 applied Drag.
  • the on these adjusting pistons 32 and 82 provided sealing rings 36 omitted without replacement. This can build up pressure in the Control chamber 96 also through the guide column of this Actuating pistons 32 and 82 take place.
  • the control channels 90a or 90b are not required in this case.
  • the pressure is controlled by the external control chambers 40, 100 via the control channels 90d and 90e to the pressure medium channel R on the return side be relieved of pressure.
  • the valve unit 50 acts in contrast to the bistable Pulse valve of the embodiment of Figure 2 as pure changeover valve or monostable valve, in which at least one of the control chambers 40, 96, 100 permanent Operating pressure is present.
  • the valve unit 50 can, as shown in FIG. 4, also as Changeover valve with mechanical reset become.
  • the two Directional control valves 58 and 60 common, control chamber 96 not pressurized.
  • the control channels 90a and 90b are closed, for example by pressing a Sealing plug.
  • the control chamber 96 is by means of a Connection to the pressure medium channel R or to the environment vented. Is between the two control pistons 32 and 82 a compression spring 102 is clamped. This presses the two Slider 26 and 64 of the directional valves 58, 60 in the drawn Home position and is dimensioned so that the one possible pressurization of the control chambers 40, 100 pressure forces generated by the control pistons 34, 84 are sufficient to overcome their bias.
  • Figure 5 shows a variant of a valve unit 50, at the two directional control valves 58 and 60 are not coaxial, but are arranged parallel to one another in the housing 52.
  • the longitudinal axes of the directional control valves 58, 60 run vertically to the contact surface of the valve unit 50 on the base plate 46.
  • the two directional valves 58, 60 are, apart from one two-part design of the slide bore 53a and 53b in Housing 52, identical to that of the previous Embodiments executed.
  • With the slide bores 53a and 53b are continuous cross holes in the Housing 52, which at one end of the base plate 46th and at the opposite second end of plug 104 are closed.
  • the pressure medium channels P and R are at a right angle the slide bores 53a, b in the direction of the pilot valve 48. They connect the slide bores 53a and 53b with each other and end in a blind hole in the slide hole 53a. The same applies to the control chambers 96a, b, 40 and 100 leading control channels 90a and 90e. Also the Pressure medium channels A and B are perpendicular to the Slider bores 53a, b aligned, but are in the No difference to the pressure medium channels P and R. coupled with each other, but run to each other opposite outer sides of the housing 52, where they from pressed balls 106 are closed pressure-tight. Aligned parallel to the slide bores 53a, b Longitudinal channels 108 connect the Pressure medium channels A, B to circumferential connections 110. These connections 110 may alternatively be on the base plate 46 or be provided on the housing 52.
  • This construction variant makes it particularly compact Realize the construction of a valve unit 50, its housing 52 due to the right-angled ducting is relatively easy to manufacture.
  • FIG. 6 shows one with a pilot valve 48 coupled valve unit 50 with likewise two-part, parallel arrangement of the slide bores 53a, b.
  • Both Slider bores 53a, b run here in contrast to Embodiment according to Figure 5 in longitudinal and not in Transverse direction to the housing 52.
  • the pressure medium connections A and B can be advantageously in the on Pilot valve 48 facing away from the end face of the valve unit Arrange 50.
  • the various control channels shown in Figure 6 only schematically indicated by dashed lines are also in this variant in longitudinal or Transverse direction to the housing 52. To repeat in Avoiding their function will be on the previous ones Explanations referenced.
  • valve units 50 with 5/2-way valve function which essentially consist of two of the Types of directional valves 58, 60 on which the invention is based are built up. All of the disclosed valve units 50 have a large number of identical parts and are at least partly through simple constructive interventions transferable. The construction principle on which the invention is based of directional valves 10, 58, 60 can therefore be one Extend the modular valve system with which no significant technical effort various customer requests are realizable.
  • FIG. 7 shows the circuit symbol for a valve unit 50, in the embodiment according to embodiment 2.
  • the valve unit 50 is switched over their two switching positions by means of electropneumatic actuated pilot valves 48.
  • the valve unit 50 has a total of five connections labeled P, R, A and B, which are numbered 1 to 5 for simplicity.
  • Port 1 or P is with a not shown Pressure generator connected, port 2 to consumer A, the connections 3 and 5 with a return R and the connection 4 with the second consumer B.
  • In the first Switch positions are connections 1 and 2 or 4 and 5 connected to each other, is in the second switching position Port 1 with port 4 and port 2 with port 3 contacted.
  • Port 3 is in switch position 1 and port 5 locked in switch position 2.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Multiple-Way Valves (AREA)
  • Fluid-Driven Valves (AREA)
  • Mechanically-Actuated Valves (AREA)
EP19990126259 1999-03-06 1999-12-31 Distributeur piloté Expired - Lifetime EP1035331B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19909918 1999-03-06
DE1999109918 DE19909918A1 (de) 1999-03-06 1999-03-06 Vorsteuerbares Wegeventil

Publications (3)

Publication Number Publication Date
EP1035331A2 true EP1035331A2 (fr) 2000-09-13
EP1035331A3 EP1035331A3 (fr) 2002-05-29
EP1035331B1 EP1035331B1 (fr) 2007-01-10

Family

ID=7899949

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19990126259 Expired - Lifetime EP1035331B1 (fr) 1999-03-06 1999-12-31 Distributeur piloté

Country Status (2)

Country Link
EP (1) EP1035331B1 (fr)
DE (2) DE19909918A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1236938A1 (fr) * 2001-02-26 2002-09-04 Rexroth Mecman GmbH Soupape à voies multiples et à alésages de piston parallèles
WO2006065801A1 (fr) * 2004-12-15 2006-06-22 Actuant Corporation Vanne tandem centrale neutre 4/3 a action directe et sans fuite
WO2018114597A1 (fr) * 2016-12-21 2018-06-28 Robert Bosch Gmbh Système de soupape
CN110878847A (zh) * 2019-12-13 2020-03-13 瑞立集团瑞安汽车零部件有限公司 一种流体阀取低输出装置
EP3845767A1 (fr) * 2019-12-30 2021-07-07 Danfoss Power Solutions Aps Agencement de soupape et groupe de soupapes

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004020794B4 (de) * 2004-04-28 2006-02-09 Bosch Rexroth Ag Vorgesteuertes 4/3-Wegeventil

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5103866A (en) 1991-02-22 1992-04-14 Foster Raymond K Poppet valve and valve assemblies utilizing same

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3175581A (en) * 1962-09-04 1965-03-30 Modernair Corp Multi-way poppet valve
US3608587A (en) * 1969-08-06 1971-09-28 Ross Operating Valve Co Single spindle four-way valve
DE3322912A1 (de) * 1983-06-25 1985-01-03 Wabco Steuerungstechnik GmbH & Co, 3000 Hannover Mehrwege-sitzventil
GB2168789B (en) * 1984-12-24 1988-08-17 Ross Operating Valve Co Improved inline poppet valve

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5103866A (en) 1991-02-22 1992-04-14 Foster Raymond K Poppet valve and valve assemblies utilizing same

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1236938A1 (fr) * 2001-02-26 2002-09-04 Rexroth Mecman GmbH Soupape à voies multiples et à alésages de piston parallèles
US6688332B2 (en) 2001-02-26 2004-02-10 Rexroth Mecman Gmbh Multiway valve for switching a flow of fluid under pressure with parallel disposition of valve bores, and valve assembly kit
WO2006065801A1 (fr) * 2004-12-15 2006-06-22 Actuant Corporation Vanne tandem centrale neutre 4/3 a action directe et sans fuite
WO2018114597A1 (fr) * 2016-12-21 2018-06-28 Robert Bosch Gmbh Système de soupape
CN110878847A (zh) * 2019-12-13 2020-03-13 瑞立集团瑞安汽车零部件有限公司 一种流体阀取低输出装置
EP3845767A1 (fr) * 2019-12-30 2021-07-07 Danfoss Power Solutions Aps Agencement de soupape et groupe de soupapes
WO2021136691A1 (fr) * 2019-12-30 2021-07-08 Danfoss Power Solutions Aps Agencement de soupapes et groupe de soupapes
US11965532B2 (en) 2019-12-30 2024-04-23 Danfoss Power Solutions Aps Valve arrangement and valve group

Also Published As

Publication number Publication date
DE19909918A1 (de) 2000-09-14
EP1035331B1 (fr) 2007-01-10
DE59914148D1 (de) 2007-02-22
EP1035331A3 (fr) 2002-05-29

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