EP2895728B1 - Flüssigkeitsströmungsventil, insbesondere für rückgeführtes abgas - Google Patents

Flüssigkeitsströmungsventil, insbesondere für rückgeführtes abgas Download PDF

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Publication number
EP2895728B1
EP2895728B1 EP13773296.2A EP13773296A EP2895728B1 EP 2895728 B1 EP2895728 B1 EP 2895728B1 EP 13773296 A EP13773296 A EP 13773296A EP 2895728 B1 EP2895728 B1 EP 2895728B1
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EP
European Patent Office
Prior art keywords
support
valve
shutter
valve according
protruding part
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
EP13773296.2A
Other languages
English (en)
French (fr)
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EP2895728A1 (de
Inventor
Sylvain Gautier
Yoann Lemarchand
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.)
Valeo Systemes de Controle Moteur SAS
Original Assignee
Valeo Systemes de Controle Moteur SAS
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 Valeo Systemes de Controle Moteur SAS filed Critical Valeo Systemes de Controle Moteur SAS
Publication of EP2895728A1 publication Critical patent/EP2895728A1/de
Application granted granted Critical
Publication of EP2895728B1 publication Critical patent/EP2895728B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
    • F02M26/65—Constructional details of EGR valves
    • F02M26/66—Lift valves, e.g. poppet valves
    • F02M26/67—Pintles; Spindles; Springs; Bearings; Sealings; Connections to actuators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F1/00—Cylinders; Cylinder heads 
    • F02F1/24—Cylinder heads
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
    • F02M26/13—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories
    • F02M26/17—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories in relation to the intake system
    • F02M26/20—Feeding recirculated exhaust gases directly into the combustion chambers or into the intake runners
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
    • F02M26/65—Constructional details of EGR valves
    • F02M26/72—Housings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
    • F02M26/52—Systems for actuating EGR valves
    • F02M26/53—Systems for actuating EGR valves using electric actuators, e.g. solenoids
    • F02M26/54—Rotary actuators, e.g. step motors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
    • F02M26/65—Constructional details of EGR valves
    • F02M26/70—Flap valves; Rotary valves; Sliding valves; Resilient valves

Definitions

  • the invention relates to a valve for circulating a fluid, in particular for regulating the flow of gas. It finds its applications, for example, in the automotive field. More particularly, the invention relates to a recirculated exhaust gas flow control valve (also called EGR according to the acronym "Exhaust Gas Recirculation").
  • EGR exhaust Gas flow control valve
  • an exhaust gas recirculation system of an internal combustion engine reduces the amount of nitrogen oxides present in the exhaust gas.
  • Such systems include a valve for adjusting the gas flow taken from the engine exhaust to be introduced to the intake.
  • valves comprising a movable shutter for adjusting the flow of recirculated exhaust gas and a body, comprising a protruding portion, cylindrical, accommodating said shutter, see DE 10 2007 007087 A1 and FR 2 947 027 A1 .
  • Said body is configured to be mounted on a support so that said protruding portion is located in a housing of said support, of a shape corresponding to that of said projecting portion.
  • the body is attached to the support by screws oriented parallel to the longitudinal axis of said projecting portion, see EP 1 092 854 A2 .
  • Said screws cooperating with passage orifices formed in the body of the valve, the axis of said orifices being distributed angularly around said projecting portion. Fixing the valve on its support is thus obtained by exerting a force in an axial direction.
  • EP 0 132 989 A2 describes a valve according to the preamble of claim 1.
  • the invention proposes to overcome the aforementioned drawbacks and carries for this purpose on a fluid circulation valve comprising a movable shutter and a body, comprising a projecting portion accommodating said shutter, said body being configured to be mounted on a support so that said protruding portion is inserted into a housing of said support.
  • said body is further configured to allow attachment of said valve on said support in a direction transverse to a direction of longitudinal extension of said projecting portion.
  • a reduced radial clearance valve is available. Indeed, compared to an axially fixed valve, whose fixing screws must necessarily be radially out of the bulk of the projecting portion accommodating the shutter, the choice of a direction of attachment transverse to said direction Longitudinal extension allows to fix the valve on its support in a limited radial space.
  • the valve may have a radial seal between the protruding portion and the support.
  • “Radial” means in particular as opposed to “longitudinal”.
  • a radial seal that is to say a seal obtained by the radial compression of a seal, implemented at the level of said projecting part, makes it possible to have a simple and effective solution for sealing between the valve and its support.
  • the seal material is selected from elastomer FPM (fluorocarbon), PTFE (polytetrafluoroethylene), better known under the trade name Teflon ®, and FPM peroxide.
  • the invention also relates to an assembly of a valve as described above and a motor yoke forming said support.
  • valve 1 for circulating a fluid. It may be a gas flow control valve, in particular recirculated exhaust gas for a motor vehicle combustion engine.
  • Said valve 1 comprises a movable shutter 2, visible to figures 2 and 4 , and a body 4 comprising a projecting portion 6, accommodating said shutter 2.
  • Said body 4 is configured to be mounted on a support 8 so that said projecting portion 6 is introduced into a housing 10 of said support 8.
  • a the figure 1 , the interior of said support 8 has been shown schematically, without said projecting portion 6, so as to understand the location of said housing 10.
  • Said support 8 comprises, for example, a bearing surface 12 of said valve and a surface 14, here perpendicular, for fixing the valve.
  • Said housing 10 is provided opening at said support surface 12.
  • Said support may further comprise a threaded orifice, non-visible, for fixing the valve on said support 8.
  • Said tapped hole here is located on said fixing face 14.
  • Said support 8 allows the circulation of said fluid.
  • it comprises, for example, an input channel 16 and an output channel 18.
  • Said input channel 16 is oriented, in particular, radially with respect to a direction of longitudinal extension of said housing 10.
  • Said output 18 is located, for example, in the axial extension of said housing 10.
  • Said support 8 is here illustrated in a particularly schematic manner. It may be, inter alia, a cylinder head of the engine for driving the vehicle equipped with said valve.
  • Said body 4 is, for example, foundry, including aluminum or aluminum alloy.
  • It comprises a base 20 from which is derived said projecting portion 6 accommodating the shutter 2.
  • Another projecting portion 22 serving to house a motor, non-visible, driving said shutter 2, may also be derived from said base 20.
  • Said base 20 forms a housing or closed chamber in which are positioned non-visible kinematic transmission elements, transmitting the movement of an output shaft of the motor to the shutter 2.
  • the kinematic transmission members comprise, for example, a gear wheel assembly assembled in a known manner. In this way the degree of opening of the shutter is controlled.
  • Said housing is closed, for example, by a cover 21 of said valve, in particular plastic.
  • Said base 20 may also form a shoulder 24 extending radially beyond the and / or said projecting portion 6, 22.
  • Said shoulder 24 serves, in particular, to the fixing of said lid 21.
  • Said projecting portion 6 accommodating said shutter 2 extends in a direction of longitudinal extension D intended to correspond to the direction of longitudinal extension of the housing 10 of the support 8.
  • Said projecting portion 6 accommodating said shutter 2 comprises, for example, a wall 26 defining an interior cavity 28 in which said shutter 2 is movably mounted.
  • Said wall 26 has an inlet 30 and an outlet 32 for the fluid, respectively configured to face the inlet and outlet channels 16 and 18 of the support 8. In this way, it allows the circulation of the fluid of said channel. input 6 to said output channel 18, through said inner cavity 28, when said shutter 2 is in the open position.
  • Said projecting portion 6 accommodating said shutter 2 here has a ribbed configuration.
  • said projecting portion 6 accommodating said shutter 2 may further comprise a proximal end 34 and an opposite distal end 35, said valve being configured to allow introduction of said projecting portion 6 accommodating said shutter 2 in said housing 10 of the support 8 by said distal end 35.
  • said projecting portion 6 accommodating said shutter 2 is located only partially in said housing 10 of the support 8. It thus comprises a first zone 36 defining said distal end 35 and intended to be located in the housing 10 of the support 8 and a second zone 38 defining said proximal end 34 and intended to remain outside said housing 10 of the support 8. Said proximal end is here located near said shoulder 24 of the base 20.
  • Said projecting portion 6 accommodating said shutter 2 and more particularly its cavity 28, as well as the housing 10 of said support 8, are, for example, cylindrical, said direction of longitudinal extension D of said projecting portion 6 accommodating said shutter 2 being then defined by the axis of the cylinder.
  • Said shutter 2 is configured to occupy different positions corresponding to different flow rates of said fluid, said positions ranging from a closed position, as illustrated, to a maximum flow position in which said shutter 10 has been raised in said direction of extension D of said projecting portion 6 accommodating said shutter 2.
  • Said shutter 2 has an operating axis intended to extend in the direction of longitudinal extension D of said projecting portion 6 accommodating said shutter 2. More precisely, said shutter 2 here comprises a valve formed of a rod, no -visible, and a shutter head 40 mounted at the end of the rod. Said valve stem extends in said extension direction D to be coupled to the kinematic transmission members at an opposite end of said rod.
  • the closure head 40 comes to close or open the outlet 32 of said projecting portion 6 accommodating said shutter 2 to block or allow the circulation of fluid by cooperating with a valve seat formed by the distal end 35 of said projecting portion 6 accommodating said shutter 2.
  • Said rod is, for example, movable in translation in said longitudinal extension direction D, said valve then comprising means, non-visible, conversion of the movement provided by said kinematic transmission members, in 'occurrence a rotation, in a translational movement.
  • Said means are housed, for example, at said second zone 38 of said projecting portion 6 accommodating said shutter 2.
  • valve may be replaced by a throttle valve, an actuating rod of the throttle then being directly rotated about its axis by the kinematic transmission members.
  • said body 4 is further configured to allow attachment of said valve 1 to said support 8 in a direction T transverse to said direction of longitudinal extension D of said projecting portion 6 accommodating said shutter 2.
  • Said body 4 is further configured to allow a radial seal between said projecting portion 6 accommodating said shutter 2 and said support 8.
  • said valve 1 comprises, for example, a seal 50 of the O-ring type.
  • Said projecting portion 6 accommodating said shutter 2 and said O-ring 50 are configured to provide said radial seal.
  • Said wall 26 of said projecting portion 6 accommodating said shutter 2 here comprises for this, on its lateral surface 51, a groove 52 accommodating said O-ring 50.
  • Said O-ring 50 and said groove 52 are dimensioned to allow compression to be achieved. joined to the introduction of said projecting portion 6 accommodating said shutter 2 in said housing 8 of the support 6.
  • Said O-ring 50 and / or said groove 52 are situated, in said longitudinal extension direction D, at said first zone 36 and in the vicinity of said second zone 38. In other words, they are located at the end of said first zone 36 opposite to said distal end 35.
  • the O-ring 50 is, for example, made of a fluorocarbon polymer FPM material, in particular peroxidized FPM, and / or Teflon® (PTFE).
  • FPM material in particular peroxidized FPM, and / or Teflon® (PTFE).
  • PTFE Teflon®
  • transverse direction T is oriented, for example, in a plane substantially perpendicular to said direction of longitudinal extension D. Moreover, said transverse direction T is intended to be oriented tangentially with respect to said projecting portion 6 accommodating said shutter 2, in particular tangentially to said second zone 38.
  • Said valve may further comprise securing means 60 for fixing said body 4 to said support 8 in said transverse direction T.
  • securing means 60 include, in particular, an orifice 62 formed in said body in said transverse direction T and intended to be traversed by a screw or nut 64, and for example a locking nut.
  • Said screw or said nut 64 has not been illustrated figure 3 to better see said orifice 62 of said securing means.
  • Said orifice 62 of the securing means is formed, for example, in a sleeve 63 derived here radially from said second zone 38 and / or said base 20 of the body 4.
  • Said sleeve defines at one of its ends a surface support 66 for said screw or nut 64 and / or at the other of its ends, a contact surface, non-visible, intended to come opposite the surface 14 for fixing the support 8, preferably plan on plan.
  • Said sleeve 63 comprises ribs 72, formed orthogonally to said transverse direction T.
  • Said orifice 62 of the securing means is intended to be located in the extension of said threaded orifice provided in the support 8, for the screwing of said screw or nut 64. It should be noted that such an orifice 62, although it is unique, suffices to obtain a satisfactory fixation of the valve 1 on its support 8.
  • Said orifice 62 of the securing means is oriented to allow attachment of said valve in a screwing direction allowing a screwing tool to escape the shoulder 24.
  • said orifice 62 of the securing means is located, for example, tangentially with respect to said projecting portion 6 accommodating said shutter 2, in particular tangentially to said second zone 38, and more particularly in a plane orthogonal to said longitudinal extension direction D. It is positioned axially between said proximal end 34 and said first zone 36.
  • Said body 4 is here configured to allow attachment of said valve 1 cantilevered on said support 8.
  • Said projecting portion 6 accommodating said shutter 2 may in particular be more mass than the other projecting portion 22 to reduce the cantilevered.
  • said body 4 may further comprise one or more reinforcing ribs, in particular oriented orthogonal to said longitudinal extension axis D.
  • One of said ribs is formed by said shoulder 24 and another 68 of the ribs is formed away from said shoulder 24 in the direction of longitudinal extension. It is connected here to an angular end 70 of the ribs 72 of said sleeve 63.
  • a wing of material 73, here orthogonal to said ribs 24, 68, may further join said projecting portion 6 accommodating said shutter 2 and said other projecting portion 22 .
  • Said projecting portion 6 accommodating said shutter 2 may further comprise, in particular at said second zone 38, radial projections 74, intended to form a spacer between said support surface 12 of the support 8 and said other rib 68.
  • said valve bears on said support 8 by means of said radial projections 74.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Lift Valve (AREA)
  • Exhaust-Gas Circulating Devices (AREA)
  • Valve Housings (AREA)

Claims (12)

  1. Umlaufventil für ein Fluid, das ein bewegliches Verschlussorgan (2) und einen Körper (4) enthält, der einen das Verschlussorgan (2) aufnehmenden vorstehenden Teil (6) enthält, wobei der Körper (4) konfiguriert ist, auf einen Träger (8) derart aufgesetzt zu werden, dass der vorstehende Teil (6) in eine Aufnahme (10) des Trägers (8) eingeführt wird, wobei der Körper (4) außerdem konfiguriert ist, eine Befestigung des Ventils am Träger (8) gemäß einer Richtung (T) quer zu einer Längsausdehnungsrichtung (D) des vorstehenden Teils (6) zu erlauben, wobei die Querrichtung (T) tangential bezüglich des vorstehenden Teils (6) ausgerichtet ist, wobei das Ventil außerdem Einrichtungen (60) zur festen Verbindung enthält, die eine Befestigung des Körpers (4) am Träger (8) gemäß der Querrichtung (T) erlauben, dadurch gekennzeichnet, dass die Einrichtungen (60) zur festen Verbindung eine Öffnung (62) enthalten, die im Körper (4) gemäß der Querrichtung (T) ausgespart ist.
  2. Ventil nach Anspruch 1, das eine radiale Dichtheit zwischen dem vorstehenden Teil (6) und dem Träger (8) aufweist.
  3. Ventil nach Anspruch 2, das eine Dichtung (50) von der Art O-Ring enthält, wobei der vorstehende Teil (6) und die Dichtung (50) konfiguriert sind, die radiale Dichtheit zu gewährleisten.
  4. Ventil nach Anspruch 3, wobei der vorstehende Teil (6) eine Seitenwand (51) enthält, die eine Rille (52) aufweist, welche die Dichtung (50) aufnimmt.
  5. Ventil nach einem der Ansprüche 1 bis 4, wobei die Querrichtung (T) in einer Ebene im Wesentlichen lotrecht zur Längsausdehnungsrichtung (D) ausgerichtet ist.
  6. Ventil nach einem der vorhergehenden Ansprüche, wobei der vorstehende Teil (6) eine erste Zone (36), die dazu bestimmt ist, sich in der Aufnahme (10) des Trägers (8) zu befinden, und eine zweite Zone (38) enthält, die dazu bestimmt ist, außerhalb der Aufnahme (10) des Trägers (8) zu bleiben, wobei die Einrichtungen (60) zur festen Verbindung sich im Bereich der zweiten Zone (38) befinden.
  7. Ventil nach Anspruch 6, wobei der Körper (4) eine eine Schulter (24) bildende Aufnahme enthält, und die Einrichtungen (60) zur festen Verbindung sich in der Längsausdehnungsrichtung zwischen der Schulter (24) und der ersten Zone (36) befinden.
  8. Ventil nach einem der vorhergehenden Ansprüche, wobei der Körper (4) konfiguriert ist, eine freitragende Befestigung des Ventils am Träger (8) zu erlauben.
  9. Ventil nach einem der vorhergehenden Ansprüche, wobei der Körper (4) eine oder mehrere Verstärkungsrippen (24, 68) enthält.
  10. Ventil nach Anspruch 9, wobei die Rippe(n) (24, 68) orthogonal zur Längsausdehnungsachse (D) ausgerichtet sind.
  11. Ventil nach Anspruch 10, wobei eine der Rippen von der Schulter (24) und eine andere (68) der Rippen in Abstand zur Schulter (24) in der Längsausdehnungsrichtung (D) geformt ist.
  12. Einheit eines Ventils (1) nach einem der vorhergehenden Ansprüche und eines Motorzylinderkopfs, der den Träger (8) bildet.
EP13773296.2A 2012-09-14 2013-09-13 Flüssigkeitsströmungsventil, insbesondere für rückgeführtes abgas Not-in-force EP2895728B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1258656A FR2995653B1 (fr) 2012-09-14 2012-09-14 Vanne de circulation d'un fluide, en particulier gaz d'echappement recircule
PCT/FR2013/052108 WO2014041317A1 (fr) 2012-09-14 2013-09-13 Vanne de circulation d'un fluide, en particulier gaz d'echappement recircule

Publications (2)

Publication Number Publication Date
EP2895728A1 EP2895728A1 (de) 2015-07-22
EP2895728B1 true EP2895728B1 (de) 2017-04-26

Family

ID=47089033

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13773296.2A Not-in-force EP2895728B1 (de) 2012-09-14 2013-09-13 Flüssigkeitsströmungsventil, insbesondere für rückgeführtes abgas

Country Status (7)

Country Link
US (1) US9541036B2 (de)
EP (1) EP2895728B1 (de)
JP (1) JP6258330B2 (de)
KR (1) KR20150053801A (de)
CN (1) CN104781536B (de)
FR (1) FR2995653B1 (de)
WO (1) WO2014041317A1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3060700B1 (fr) * 2016-12-20 2019-06-21 Valeo Systemes De Controle Moteur Vanne de circulation de fluide comportant un joint d'etancheite entre le corps de vanne et un organe de reception de la vanne

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1950911A (en) * 1932-07-28 1934-03-13 Victor F Zahodiakin Internal combustion engine
GB8319853D0 (en) * 1983-07-22 1983-08-24 Forsac Valves Ball valve for pipeline
FR2727158B1 (fr) * 1994-11-17 1996-12-27 Sagem Allumage Vanne de controle de la quantite de gaz d'echappement recyclee dans un moteur a combustion interne
DE19800780C2 (de) * 1998-01-12 2000-06-21 Ranco Inc Of Delaware Wilmingt Druckkompensiertes Abgasrückführventil
US6497245B1 (en) * 1999-10-13 2002-12-24 Denso Corporation Intake air controller for internal combustion engine and manufacturing the same
JP4439452B2 (ja) * 2005-09-28 2010-03-24 株式会社クボタ 立形直列多気筒エンジン
JP4556864B2 (ja) * 2005-12-26 2010-10-06 株式会社デンソー 内燃機関用吸気装置
DE102007007087B4 (de) * 2007-02-13 2009-05-28 Woco Industrietechnik Gmbh Abgasrückführungsventil umfassend einen einstellbaren Positionsdetektor
FR2947027B1 (fr) * 2009-06-17 2011-07-15 Valeo Sys Controle Moteur Sas Dispositif de transformation de mouvement et vanne comportant un tel dispositif
CN201747485U (zh) * 2010-08-17 2011-02-16 无锡隆盛科技有限公司 一种电动egr阀
CN202228216U (zh) * 2011-08-02 2012-05-23 宜宾天瑞达汽车零部件有限公司 直流电机egr阀
JP5680517B2 (ja) * 2011-10-31 2015-03-04 愛三工業株式会社 流量制御弁

Non-Patent Citations (1)

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Title
None *

Also Published As

Publication number Publication date
CN104781536B (zh) 2018-01-23
KR20150053801A (ko) 2015-05-18
WO2014041317A1 (fr) 2014-03-20
JP6258330B2 (ja) 2018-01-10
FR2995653A1 (fr) 2014-03-21
US20150240755A1 (en) 2015-08-27
CN104781536A (zh) 2015-07-15
FR2995653B1 (fr) 2015-07-17
US9541036B2 (en) 2017-01-10
JP2015534627A (ja) 2015-12-03
EP2895728A1 (de) 2015-07-22

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