EP3027945A1 - Soupape à entraînement linéaire pour le piston de soupape - Google Patents

Soupape à entraînement linéaire pour le piston de soupape

Info

Publication number
EP3027945A1
EP3027945A1 EP14747000.9A EP14747000A EP3027945A1 EP 3027945 A1 EP3027945 A1 EP 3027945A1 EP 14747000 A EP14747000 A EP 14747000A EP 3027945 A1 EP3027945 A1 EP 3027945A1
Authority
EP
European Patent Office
Prior art keywords
rotor
valve
stator
valve piston
coil
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP14747000.9A
Other languages
German (de)
English (en)
Inventor
Hartmuth Rausch
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.)
Rausch Hartmut
Original Assignee
Parker Hannifin Manufacturing Germany GmbH and Co KG
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 Parker Hannifin Manufacturing Germany GmbH and Co KG filed Critical Parker Hannifin Manufacturing Germany GmbH and Co KG
Publication of EP3027945A1 publication Critical patent/EP3027945A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
    • F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
    • F16K31/08—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid using a permanent magnet
    • F16K31/082—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid using a permanent magnet using a electromagnet and a permanent magnet
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
    • F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
    • F16K31/0603—Multiple-way valves
    • F16K31/061—Sliding valves
    • F16K31/0613—Sliding valves with cylindrical slides
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
    • F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
    • F16K31/0675—Electromagnet aspects, e.g. electric supply therefor
    • F16K31/0679—Electromagnet aspects, e.g. electric supply therefor with more than one energising coil
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H01F7/08—Electromagnets; Actuators including electromagnets with armatures
    • H01F7/16—Rectilinearly-movable armatures
    • H01F7/1607—Armatures entering the winding
    • H01F7/1615—Armatures or stationary parts of magnetic circuit having permanent magnet
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K33/00—Motors with reciprocating, oscillating or vibrating magnet, armature or coil system
    • H02K33/16—Motors with reciprocating, oscillating or vibrating magnet, armature or coil system with polarised armatures moving in alternate directions by reversal or energisation of a single coil system
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K41/00—Propulsion systems in which a rigid body is moved along a path due to dynamo-electric interaction between the body and a magnetic field travelling along the path
    • H02K41/02—Linear motors; Sectional motors
    • H02K41/03—Synchronous motors; Motors moving step by step; Reluctance motors
    • H02K41/031—Synchronous motors; Motors moving step by step; Reluctance motors of the permanent magnet type

Definitions

  • the invention relates to a valve with a valve housing in a linearly movable valve piston and a linear actuator, the housing a fixedly connected to the Venti stator and a movable therein, the valve piston actives en rotor comprises, wherein the stator of egg nem from m agneti sch leitfähi according to the existing material housing and at least one coil disposed therein is formed and separated from the stator by an air gap runners from at least one permanent magnet m e j ewei ls at its Po lseite adjacent, made of magnetically conductive Materi al existing pole pieces.
  • a driven by a linear actuator valve with the aforementioned features is described in DE 693 25 669 T2; for the development of the linear drive, it is merely stated that it consists of a stator arranged in a permanent, rigid mechanical connection with the valve housing and mechanically coupled to the valve piston and arranged in the armature chamber of the linear drive, separated from the stator by an air gap Anchor exists.
  • the known valve is designed as a directional valve with a valve piston which is movable in both directions, a set of turns is to be provided in the stator in order to cover both directions of movement.
  • Tor and anchor have the same length.
  • no details are given for the construction of the stator and armature of the linear drive in detail in DE 693 25 669 T2.
  • the stator consists of a housing made of egg nem magnetically leitfähi material, in wel chem a sequence of abutting coils is arranged.
  • the associated rotor consists of a plurality of juxtaposed permanent magnets with alternating alternating polarities, so that in each case the same magnetic poles face each other, between each of which are arranged from a magnetically conductive Materi al existing pole pieces, wherein j eweil s an outboard pole piece End of the runner bil det.
  • the invention is therefore an object of the invention to provide a valve with the features of the generic type, in which on the one hand a direct drive regardless of the size of the valve possible and on the other hand the dynamics of directly driven by means of a linear valve valves is improved.
  • the invention provides in its basic idea that in an embedded in the stator coil on the outer sides j eweil s an outer land is arranged or in each case embedded in the stator housing coils between the coils in each case an inner web and on the outer sides of the outermost coils in each case e an associated outer web are arranged, wherein the axial extensions of inner webs and outer webs, permanent magnets and pole pieces are coordinated so that in the Hubberei ch of the valve piston to form an energized at least one coil effective increase in force weni least one corner ei nes pole piece on the one hand and at least one corner of an outer land on the other hand facing so that at this point in the air gap, the magnetic fields of permanent magnet and current-carrying coil are rectified and compressed.
  • Linear drive forces on the rotor in the movement direction are essentially generated at the material transitions at the air gap, in the form iron / air gap / iron.
  • the magnetic flux density is composed of the contribution of the permanent magnet and the contribution of the current-carrying coil or coils. In this case, of course, the largest flux densities and thus the desired force increases in the air gap at the points at which the flow directions of the permanent magnet and Spul are rectified current flow and at the same time the egg senteile of stator and rotor in the air gap face with a relatively small transition area.
  • the idea of the invention is realized, for example, by arranging a coil with its outer webs in its stator in such a way that the outer corner of the in the direction of a working stroke of the valve is associated with a rotor having a permanent magnet with in each case outer pole pieces located pole piece in the defined by the currentless coil initial position of the rotor of the coil side corner facing the direction of the working outward outer web of the stator, so that when energized the coil with a field rectified to the field of the permanent magnet field due to the immediately occurring compression of the magnetic fields of Permanent magnet and current-carrying coil adjusts a force increase, which leads to an immediate increase in the force acting on the valve piston in the direction of the working stroke of the starting position of the rotor out of the linear drive.
  • stator and rotor with a larger number of coils and permanent magnets
  • Inner webs and thus arranged in the stator housing coils on the other hand be designed differently, both with each other and each other.
  • stator two coils are arranged with an inner web arranged between the coils and the j eweil s on the outside of the S pules arranged outer webs.
  • the axial extent of two coils and the inner leg of the stator is equal to the axial extent of the rotor with a permanent magnet and two pole pieces, wherein either the axial extent of the inner web of the stator corresponds to the axial extent of the permanent magnet of the rotor in such a way that, in the starting position of the rotor, two force increases acting simultaneously on the movement of the rotor and thus adding thereto are formed, or the axial e initial ckung of the inner web of the stator is smaller than di e axial Tilereekung of the permanent magnet of the rotor, so that a first force increase in the starting position of the rotor and a second Krafterhöhun g form after fürschrei th a predetermined valve lift.
  • the axial Clearung turn of two coils and the inner leg of the stator is greater than the Clearreekung the rotor with a permanent magnet and two pole pieces, wherein the distance of the adjacent edges of the coils of the outer webs of the stator to the initial position of the rotor corresponds to the tuned to the achievement of a matched to the course of the flow forces position of the valve piston valve, again either the axial Managerreekung of the inner web of the stator is equal to the axial Clearreekung of the permanent magnet of the rotor, so that in the starting position of the Rotor form a first increase in force and a second increase in force after passing through the predetermined valve lift, or wherein the axial Tagreekung of the inner web of the stator is smaller than the axial Clearreekung of the permanent magnet of the rotor, so that a first force increase after fürsc hreiten an anfnaturel IEN valve lift and a second increase in force
  • the rotor is formed from at least two permanent magnets and at least three pole pieces, wherein at least one pole piece of the rotor in the stator is associated with a coil.
  • a derarti ger structure may well include a larger (arbitrary) number of permanent magnets and pertinent pole pieces, in each case at the outer ends of the rotor assembly, a pole piece is arranged. In this case, only one coil can be assigned to at least one pole piece of the rotor in the stator.
  • a plurality of coils to be associated, in each case, with individual pole pieces of the rotor.
  • a valid for this simple embodiment of the invention can be provided that, for example, in a runner with several permanent magnets and a plurality of pole pieces only the middle pole piece assigned a coil i st.
  • the idea of the invention extends, for example, to the fact that the stator has three coils with two inner webs arranged between them and two outer webs and the rotor consists of a stack of at least two permanent magnets and alternately therebetween and on their outer sides arranged pole pieces, wherein the formation of a when energizing the coils caused increase in force at least j eweil s a corner of a pole piece on the one hand and a corner of an inner web and / or an outer web on the other hand either in the starting position of the rotor or upon reaching a predetermined valve lift face each other.
  • the inner webs and the outer webs of the stator each have a same axial extent and the pole pieces of the rotor have a different axial extent to each other, wherein the two outer pole pieces each have a smaller axial extent than the located between the permanent magnet pole piece.
  • the inner webs and the outer webs of the stator each have a different axial extension and the outer pole pieces of the rotor have a same axial extent which corresponds to half the axial extent of the pole piece located between the permanent magnets.
  • either the coils arranged in the stator can have the same or a different length.
  • the distances between the webs arranged in the stator are equal to each other and the axial extent of the pole pieces in the rotor are different or that the distances between the webs arranged in the stator are different from one another and the axial Extension of all pole pieces in the rotor are the same.
  • both the distances between the webs arranged in the stator to each other and the axial extent of the pole pieces in the rotor may in each case be different from one another, or the distances between the webs arranged in the stator to one another as the axial extent of the pole pieces in the rotor si nd j Ewei ls equal to each other.
  • a prerequisite for this function is that a symmetrical structure of rotor and stator is provided with respect to the perpendicular to the direction of movement of the rotor axis of symmetry, so that corresponding Force increases in the j eweils two directions of movement of the rotor or driven by this valve piston result.
  • the invention is also applicable to valves designed as a plug-in valve with a valve piston operating in only one stroke direction.
  • a corresponding increase in force or a force maximum is to be provided only in a direction of movement of the valve piston
  • an asymmetrical structure of rotor and stator with respect to the axis of symmetry extending perpendicular to the direction of movement of the rotor symmetry axis is specified.
  • a linear drive constructed in accordance with the invention can be used in all conventional types of valve; In that regard, it does not depend on the internal structure of the hydraulic valve s in detail, as long as the rotor of the linear drive j is in each case connected to the valve piston of the hydraulic ikventils.
  • the function of the inventively constructed linear drive j in each case switches off on an initial position of the rotor and thus the valve piston, in which the power supply of the at least one coil of the linear drive takes place for carrying out a working stroke of the valve piston, this starting position can according to an embodiment of the invention by a currentless State of the linear drive automatically brought about adjustment of the position of the valve piston to be brought about.
  • valve piston as described in the generic prior art, be held by him beidseiti g acting springs in a center position corresponding starting position, as I am in directional valves übl.
  • valve piston there are also other starting positions for the valve piston conceivable, for example, in 2/2-way valves (eg Cartri dge valves), in which the valve piston is in each case only moved between two end positions.
  • Fig. 2a shows a first embodiment of the linear drive with a one
  • Coil having two outer webs stator and one consisting of a permanent magnet and two pole pieces adjacent thereto Läu fer in a schematic representation in the starting position of the runner,
  • Fig. 2c the field lines emanating from the current-carrying coil, without taking into account the field generated by the permanent magnet
  • 2d shows the field lines emanating from the permanent magnet without consideration of a field generated by the coil current
  • FIG. 3 shows another embodiment of the hi he symmetrically constructed Li nearantriebes with a two coils, an inner web and two outer webs comprehensive stator and one of a permanent magnet and two adjacent pole pieces existing runner in a figure 2a, b corresponding presen- tation, wherein
  • 3 a shows the position of the rotor in the starting position
  • Fi g. 3 b shows the position of the rotor after passing through a stroke "+ a" in one direction of movement of the rotor
  • FIG. 3 c shows, after the return stroke, the renewed position of the rotor in the starting position
  • 3 d shows the position of the rotor after passing through a stroke "-a" in the other direction of movement of the rotor
  • FIGS. 3 a to d show the course of force
  • FIGS. 3 a, b and e corresponding representations
  • FIGS. 3 a - e are identical representations
  • Fi g. 6a-c show an embodiment of the linear drive modified relative to the embodiment according to FIG. 5 ad
  • Fig. 7a, b show an asymmetrical structure of rotor or stator aufwei send linear actuators
  • Fig. 8 a-d show further embodiments of linear drives with a three
  • Fig. 9 shows another embodiment with a three-coil stator and a four permanent magnets with five pole pieces having rotor.
  • valve housing 10 which is shown by way of example in FIG. 1 has four housing connections T - A - P - B, wherein a fifth connection T adjacent to the connection B is connected to the housing connection T by means of a tank bridge 11 formed in the valve housing 10.
  • a housing bore 1 2 is madebi Leds, in which a valve piston 13 is arranged longitudinally displaceable.
  • the valve piston 1 3 has two piston collars 1 4, which in the closed position of the valve piston shown in Figure 1, the consumer ports A and B j j respectively block.
  • the valve piston 1 3 has at its two outer ends in each case a stepped extension 1 5, which is accommodated in a sealing sleeve 1 6 inserted into the housing bore 12 from the outside.
  • the corresponding end faces of the valve housing 10 are closed by externally mounted housing cover 1 7, so that thereby the sealing sleeves 1 6 j are in each case fixed in the housing bore 1 2.
  • a housing-like and formed of a magnetically conductive material existing stator 21 is disposed on one side of the valve housing 10 and fixedly connected to the valve housing 10.
  • a rotor 22 is arranged, which is connected via a connecting rod 29 with the associated end of the valve piston 13, so that the linear movement of the rotor 22 in a displacement of the valve piston 13 in the housing bore 12 of the valve housing 10 implemented becomes.
  • two coils 23 are arranged in the stator 21, between which an inner web 24 is formed, wherein on the two outer sides of the two coils 23 each have an outer web 25 is formed in the linear drive 20 shown in FIG.
  • the rotor 22 consists of a permanent magnet 26, on whose two outer sides in each case one of a magnetically conductive material existing pole piece 27 is arranged.
  • the rotor 22 is separated from the stator 21 by an air gap 28.
  • FIGS. 2 a to 2 f show and explain a first exemplary embodiment of the linear drive according to the invention with a stator 21 having a coil 23 with two outer webs 25 and a rotor 22 consisting of a permanent magnet 26 and two pole pieces 27 adjacent thereto, wherein the illustrated arrangement has only one Working stroke to be addressed valve stroke "a" in one direction.
  • the stator 2 1 has a coil 23 with j outward outer outriggers 25; the coil 22 consists of a permanent magnet 26 and two adjacently arranged pole pieces 27.
  • the coil 23 has the same width as the location in niethsjust ment pole piece 27, wherein the initial position of the valve piston and the linear drive 20 is defined by the rotor 22 with its pointing in the direction of movement pole piece 27 in front of the coil 23 of the stator 2 1 stands. In this starting position, the corner of the pole piece 27 designated as "A" results on the one hand and the corner of the outside web 25 adjacent to the coil 23 as belonging to the corner with " ⁇ ".
  • the linear drive 20 has a symmetrical structure with respect to a running in its initial position by the rotor 22 with respect to the perpendicular to the direction of movement of the rotor axis of symmetry, so that the in Figures 3a - d illustrated linear drive 20 for a Directional control valve with an in To use the stroke directions working valve piston is.
  • the stator 21 has two coils 23 with an inner web 24 lying therebetween and two outer webs 25 on the outside.
  • the rotor in turn consists of a permanent magnet 26 and two outer pole pieces 27.
  • the valve shown in Figures 4a - c differs from the above beschri planar valve, characterized in that at a given continued Chen extension of rotor 22 on the one hand and coils 23 with inner web 24 on the other hand now the Ausreckun g of the coil 23 is greater than the extension the pole pieces 27, so that the extension of the inner web 24 is smaller than the extension of the permanent magnet 26.
  • the Ausreckun g of the coil 23 is greater than the extension the pole pieces 27, so that the extension of the inner web 24 is smaller than the extension of the permanent magnet 26.
  • FIG. 5 e shows the force-stroke profile over the operative stroke, from which it can be seen that even with a long-stroke valve, a sufficient force level is made available.
  • the embodiment shown in Figures 6a - c is particularly suitable for valves with a long valve lift.
  • the inner web 24 is dimensioned to be smaller than the extent of the permanent magnet 26 of the rotor 22, given otherwise identical specifications. This results in that correspondingly FIG. 6a in the starting position of the rotor 22 no increase in force is to be noted, because no relevant corners of Bars or pole pieces face each other. If, however, the runner 22 has passed through a small initial stroke "+ a" in accordance with FIG.
  • the corresponding linear drives are suitable for the operation of directional control valves, as described. If, however, an asymmetrical arrangement of pole pieces and / or inner or outer webs is selected in the design of the rotor and / or stator, then this leads to the occurrence of corresponding force increases in only one direction of movement of the rotor, so that such a linear drives 20 for Use with plug-in valves are suitable, in which only one direction of movement of Ventilkol bens i st.
  • FIGS. 7a and 7b give an example in each case.
  • the center line 35 of the rotor 22 extending through the permanent magnet 26 is offset in the direction of movement of the rotor 22 by an amount relative to the center line 36 of the stator 21 extending through the inner web 24, so that, in accordance with the previous detailed explanations, already in the starting position of the rotor 22 with appropriate energization of the coils
  • the center line 36 of the stator 2 1 is in FIG the direction of movement of the rotor 22 by ei nen amount relative to the Mittenlini e 3 5 of the rotor 22 is offset, so that in this case a corresponding increase in force after passing through the stroke "+ a" results.
  • the structure according to the invention can also be realized with a larger number of coils 23 and thus formed inner webs 24 on the one hand and / or with a larger number of permanent magnets 26 and pole pieces 27 on the other hand.
  • the axial extensions of pole pieces and / or permanent magnets 26 and of the length of the coils 23 in the stator 21 predetermined inner webs 24 and outer webs 25 vary.
  • FIGS. 8a-d This is exemplified by the embodiments shown in FIGS. 8a-d, which are not illustrated.
  • three coils 23 are arranged in the stator 2 1, resulting in two inner webs 24 and two outer webs 25.
  • the individual embodiments according to FIGS. 8a-d clearly distinguish in the extension of the respective webs 24, 25, wherein the construction of the rotor 22 with two permanent magnets 26, an inner pole piece 27 and two outer pole pieces 27 is kept unchanged.
  • FIG. 9 an exemplary embodiment for a construction of the rotor 22 which is widened in comparison with the exemplary embodiments according to FIGS. 8a-d is reproduced.
  • the stator 2 1 unchanged comprises three coils 23
  • the rotor 28 now knows four permanent magnets 26 and consequently five pole pieces 27, the width of the pole pieces 27 starting from the innermost, middle pole piece 27, in each case decreasing outwards.
  • the process of the rotor 22 with respect to the stator 21 results in the occurrence of several successive force increases.
  • FIG. 9 an exemplary embodiment for a construction of the rotor 22 which is widened in comparison with the exemplary embodiments according to FIGS. 8a-d is reproduced.
  • the stator 2 1 unchanged comprises three coils 23
  • the rotor 28 now knows four permanent magnets 26 and consequently five pole pieces 27, the width of the pole pieces 27 starting from the innermost, middle pole piece 27, in each case decreasing outwards.
  • the process of the rotor 22 with respect to the stator 21 results in the

Abstract

L'invention concerne une soupape comprenant un piston (13) de soupape linéairement mobile dans un carter (10) de soupape et un entraînement linéaire (20) qui comporte un stator (21) relié immobile au carter (10) de soupape ainsi qu'un rotor (22) mobile dans le stator, agissant sur le piston (13) de soupape. La soupape est caractérisée en ce que, lorsqu'une bobine (23) est incorporée dans le boîtier de stator, un élément jointif extérieur (25) est disposé sur le côté extérieur de celle-ci ou, lorsque plusieurs bobines (23) sont incorporées dans le boîtier de stator, un élément jointif intérieur (24) est disposé entre les bobines (23) et un élément jointif extérieur (25) associé est disposé sur les côtés extérieurs des bobines (23) extérieures, les étendues axiales des éléments jointifs intérieurs (24) et des éléments jointifs extérieurs (25), des aimants permanents (26) et des éléments polaires (27) étant accordées les unes aux autres de manière que dans la zone de course du piston (13) de soupape, pour développer une augmentation de force active lorsque du courant passe par la au moins une bobine (23), au moins un coin (A, B) (C, D) d'un élément polaire (27) d'une part et au moins un coin (A', B') (C', D') d'un élément jointif extérieur (25) d'autre part se fassent face de manière que les champs magnétiques de l'aimant permanent (26) et de la bobine (23) traversée par du courant soient orientés dans le même sens et comprimés à cet endroit dans l'entrefer (28).
EP14747000.9A 2013-07-30 2014-07-30 Soupape à entraînement linéaire pour le piston de soupape Withdrawn EP3027945A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102013108164.9A DE102013108164B4 (de) 2013-07-30 2013-07-30 Ventil mit einem Linearantrieb für den Ventilkolben
PCT/EP2014/066363 WO2015014887A1 (fr) 2013-07-30 2014-07-30 Soupape à entraînement linéaire pour le piston de soupape

Publications (1)

Publication Number Publication Date
EP3027945A1 true EP3027945A1 (fr) 2016-06-08

Family

ID=51263389

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14747000.9A Withdrawn EP3027945A1 (fr) 2013-07-30 2014-07-30 Soupape à entraînement linéaire pour le piston de soupape

Country Status (7)

Country Link
US (1) US20160186883A1 (fr)
EP (1) EP3027945A1 (fr)
JP (1) JP2016532834A (fr)
KR (1) KR20160037176A (fr)
CN (1) CN105579753A (fr)
DE (1) DE102013108164B4 (fr)
WO (1) WO2015014887A1 (fr)

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JP7191297B2 (ja) * 2017-12-08 2022-12-19 Smc株式会社 サーボバルブ
KR101996751B1 (ko) * 2018-02-01 2019-07-04 권춘화 누수방지기능을 갖는 소변기용 후레시 밸브
US11891928B2 (en) 2019-06-19 2024-02-06 The Oilgear Company Hydraulic valve with linear adjustable throttling gate and a hydraulic velocity fuse throttling gate
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None *
See also references of WO2015014887A1 *

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Publication number Publication date
KR20160037176A (ko) 2016-04-05
CN105579753A (zh) 2016-05-11
DE102013108164A1 (de) 2015-02-05
DE102013108164B4 (de) 2017-11-02
JP2016532834A (ja) 2016-10-20
US20160186883A1 (en) 2016-06-30
WO2015014887A1 (fr) 2015-02-05

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