WO2020187673A1 - Dispositif de soupape - Google Patents

Dispositif de soupape Download PDF

Info

Publication number
WO2020187673A1
WO2020187673A1 PCT/EP2020/056583 EP2020056583W WO2020187673A1 WO 2020187673 A1 WO2020187673 A1 WO 2020187673A1 EP 2020056583 W EP2020056583 W EP 2020056583W WO 2020187673 A1 WO2020187673 A1 WO 2020187673A1
Authority
WO
WIPO (PCT)
Prior art keywords
valve device
control body
inlet
bores
armature
Prior art date
Application number
PCT/EP2020/056583
Other languages
German (de)
English (en)
Inventor
Janusz Zurke
Oliver Paul
Original Assignee
Pierburg 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 Pierburg Gmbh filed Critical Pierburg Gmbh
Publication of WO2020187673A1 publication Critical patent/WO2020187673A1/fr

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
    • F16K31/0686—Braking, pressure equilibration, shock absorbing
    • F16K31/0693—Pressure equilibration of the armature
    • 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
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/32—Details
    • F16K1/34—Cutting-off parts, e.g. valve members, seats
    • F16K1/36—Valve members
    • 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
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/32—Details
    • F16K1/48—Attaching valve members to screw-spindles
    • 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
    • F16K39/00—Devices for relieving the pressure on the sealing faces
    • F16K39/02—Devices for relieving the pressure on the sealing faces for lift valves
    • F16K39/022—Devices for relieving the pressure on the sealing faces for lift valves using balancing surfaces

Definitions

  • the invention relates to a valve device with a housing which has an inlet and an outlet, a flow channel which is formed between the inlet and the outlet, a valve seat formed in the housing, a regulating body which has a sealing surface and can be placed on the valve seat and from this can be lifted, through bores which are formed in the control body and which connect the side of the control body facing the inlet with a space on the side of the control body facing away from the inlet, an actuator, which has a core, a coil, a coil carrier, a yoke and a Having armature, wherein the armature is coupled to the control body and is movable therewith.
  • valve can become stiff if particles settle in the sliding area between the guide sleeve and the movable valve parts.
  • Various pressure compensated valves are described in the patent literature.
  • DE 10 2012 010 140 A1 discloses a valve, the valve member of which is provided with flow passages which allow the gas flow to pass through to produce pressure equalization between the side of the valve member facing the sealing seat and the side facing away from the sealing seat.
  • DE 10 2016 120 551 B4 also describes a solenoid valve designed with pressure compensation bores for an internal combustion engine
  • valve devices are known from the prior art, the actuators of which are designed in several parts.
  • the actuators are provided with an additional seal in order to efficiently separate the inlet port of the valve from the outlet port in the closed state.
  • DE 10 2015 202 477 A1 discloses a gas valve which has a seal carrier on which an elastomer seal is arranged which can be placed on the valve seat.
  • control bodies are production-intensive, since they require the production of several control body components from different materials, which are then connected to one another in a separate manufacturing or assembly process. The large number of production steps is associated with increased costs.
  • these regulating bodies are not very robust in valve operation, since possible between the individual components of a multi-part regulating body Leakage paths arise and individual components can be detached at higher pressures.
  • the object is therefore to create a robust and inexpensive valve device which maintains the functionality, in particular the pressure equalization function and mobility of the control body, by reducing the penetration of contaminants into and through the through bores of the control body.
  • This object is achieved by a valve device with the features of main claim 1.
  • a particle protection screen is formed in one piece with the control body, with a projection surface of the particle protection screen in the axial direction on the control body covering the ends of the through-holes in the control body, and with the ends of all through-holes being at least partially axially spaced from the particle protection screen, a robust control body is created , which can be produced easily and inexpensively in a single production step.
  • the particle protection screen reduces the penetration and deposition of impurities in the through-holes in the control body by preventing a direct flow against the holes.
  • the regulating body preferably consists of an elastomer.
  • This plastic allows simple production in a vulcanization process.
  • elastomers ensure a reliable seal between the sealing surface of the control body and the valve seat in the housing.
  • the elastomer is ethylene-propylene-diene monomer rubber (EPDM).
  • EPDM is characterized by a very high temperature resistance. The operating temperature range of the elastomer extends from -60 ° C to + 160 ° C. EPDM also has good resistance to chemicals. This plastic is therefore also resistant to steam and hot water as well as refrigerants.
  • An advantageous embodiment of the invention has a movement unit which consists of the armature of the actuator and the control body, and in the closed state of the valve device on the side facing the inlet has the same pressure-effective surface in the axial direction as on the side of the control body facing away from the inlet.
  • the medium to be conveyed by the valve device passes through the through bores of the control body into a volume-variable space which is formed on the side of the control body facing the actuator.
  • the medium spreads further within a sleeve which hermetically encloses the armature and that the medium pressure also acts on it.
  • the pressure-effective surface of the movement unit made up of armature and regulating body is designed in the axial direction in the closed state of the valve device in such a way that the axial forces on the movement unit resulting purely from the media pressure cancel each other out.
  • the electromagnet when the electromagnet is not energized, there is only an axial force exerted by a helical spring on the regulating body, the sealing surface of which is pressed onto the valve seat by the spring force, thereby closing the flow channel.
  • a section of the control body serves as a seal between the space on the side of the control body facing the actuator and the outlet of the valve device.
  • This seal rests against the inside of a guide sleeve so that it can move in translation and prevents leakage from the inlet side of the valve to the outlet side when the control body is closed.
  • the aforementioned seal is formed in one piece with the control body. This is a locally radially protruding and circumferential area on the circumference of the control body, which rests on the inside of the guide sleeve and in this way ensures the seal between the outlet connection and the space of the control body facing the actuator.
  • the through-bores in the regulating body preferably run axially. This construction permits good protection against the penetration of contaminants carried with the media flow into the bores, since the particle protection screen arranged upstream of the bores runs parallel to the ends of the through-bores. In addition, straight and axially extending bores are easy to produce.
  • the armature of the actuator and the control body are connected to one another directly by means of a coupling element.
  • the coupling element can be moved in a translatory manner with the electromagnetically actuated armature and transfers its kinetic energy to the control body in order to regulate the opening cross section of the valve on the valve seat and thus the flow rate of the medium.
  • the attachment between the coupling element and the control body takes place via a connection designed as a ball joint.
  • the advantage of this design is that possible misalignments of the control body and the associated leakage losses between the inlet and outlet nozzles are prevented, since the ball-and-socket connection in connection with the axial-translational movement of the coupling element always ensures that the sealing surface of the control body sits optimally on the valve seat guaranteed.
  • the ends of the through bores are positioned radially inside the valve seat on the side of the regulating body facing the inlet. In this way it is ensured that the medium can pass through the bores when the valve is closed and that the control body can thereby perform its pressure compensation function.
  • the particle protection screen is conical.
  • the tip of the cone faces the inlet of the valve device, so that the flow guidance is deflected from the bores and the pressure loss due to fluid flow is low due to the conical shape.
  • the particle protection screen prevents the direct penetration of contaminants into the through-holes and into the volume-variable space, which is located on the side of the control body facing the actuator, since the particle protection screen covers the through-holes in the axial and thus flow direction.
  • the armature is arranged within a sleeve and can be moved in a translatory manner therein.
  • Said sleeve seals the electromagnet against the medium in order to prevent damage to the electromagnet. Furthermore, it protects the actuator and its components from the possible thermal and chemical properties of the medium and serves as a sliding surface for the armature.
  • An O-ring is preferably located between an axial projection of the housing and a guide sleeve of the control body. This acts as a seal and separates the actuator from the medium in order to prevent any damage to actuator components, for example due to corrosion.
  • the O-ring should be made of an elastic material in order to ensure the best possible seal.
  • the guide sleeve of the control body and the sleeve surrounding the armature are formed in one piece. This reduces the production effort because one less component is manufactured. In addition, the assembly process is simplified and accelerated and the tightness is increased.
  • a robust valve device is thus created that is simple and inexpensive to manufacture.
  • the assembly of the control body according to the invention is simplified and its operational properties are improved.
  • the through bores of the regulating body are prevented from clogging, and so the functionality of the valve device is improved overall by the invention.
  • reliable closing is guaranteed over the entire service life, even in the event of pressure fluctuations.
  • Figure 1 shows a side view of a valve device according to the invention in a sectional view.
  • FIG. 2 shows a side view of a control body of the valve device according to the invention from FIG. 1 in a sectional illustration.
  • the valve device 10 shown in Figure 1 consists of a housing 20, which in turn consists of a flow housing 21 and an actuator housing 23 in which an actuator 50 is arranged.
  • the actuator 50 has a core 52 arranged in the actuator housing 23, a coil 54, a coil carrier 56, a yoke 58 and an armature 59.
  • the control body 30 is connected to the armature by means of a coupling member 70 59 connected and made movable with this.
  • the coil 54 can be energized via a plug 91, whereby a magnetic field is generated.
  • the armature 59 is attracted by the core 52, causing the translational and axial movement of the coupling element 70 and thus also of the control body 30.
  • the flow housing 21 has an inlet 22 and an outlet 24, via which a medium 11 can be supplied to and removed from the valve device 10.
  • the inlet 22 is fluidically connected to the outlet 24 via a flow channel 26.
  • the flow channel 26 is, however, largely formed by the inlet connector 25 and the outlet connector 27 of the flow housing 21.
  • a projection protruding axially with respect to a control body axis 38 is formed, which serves as a valve seat 28 and radially delimits a controllable flow cross section 31.
  • the valve seat 28 is also completely circumferential radially in order to ensure efficient closing of the valve device 10.
  • a translationally movable regulating body 30 or a sealing surface 32 of the regulating body 30 can be placed on the valve seat 28.
  • the valve device 10 can be closed and the flow of the medium 11 can be prevented.
  • the control body 30 can be lifted off the valve seat 28 by actuating the actuator 50 and the resulting axial movement of the armature 59. In this way, the flow cross-section 31 can be released, whereby the extent of the axial movement of the control body 30 of the mass or Volume flow of the medium 11 can be regulated.
  • the regulating body 30 can be placed on the valve seat 28 again.
  • the regulating body 30 made of an elastomer 33 is formed in one piece and made of the same material and has through bores 40.
  • the special feature of the control body 30, which is also the subject of the present invention, is a conical particle protection screen 60, which is also formed in one piece with the control body 30 and covers the through bores 40 when viewed in the axial direction.
  • the particle protective screen 60 and its cone tip 61 face the inlet 22 of the valve device 10. This shape ensures an optimal flow deflection and a smoother transition of the medium 11 flowing from the inlet connector 25, including the particles, in the direction of the outlet connector 27, since the geometry of the control body 30 is adapted to a more streamlined geometry. Furthermore, the flow of media is directed away from the through bores 40.
  • the flow resistance of the control body 30 in the open state of the valve device 10 is improved in contrast to the same control body 30 without a particle protection screen 60.
  • the energy expenditure of a compressor or a pump conveying the medium 11 can be reduced slightly but measurably.
  • the energy consumption of the compressor or the pump can be further reduced if necessary.
  • the regulating body 30 is also connected to the coupling member 70 on its side facing away from the inlet 22.
  • the end of the coupling member 70 facing the regulating body 30 is largely spherical, the diameter of the spherical end being greater than the other diameters of the coupling member 70 in its axially extending regions.
  • the fastening area in the control body 30 is configured. This is concave or hollowed out and receives the spherical end of the coupling member 70 in order to produce a positive connection.
  • a radially inwardly extending projection 37 is formed on the regulating body 30, which ensures that the coupling member 70 snaps into the elastic regulating body 30 during the assembly process.
  • the medium 11 can get into the through bores 40 of the regulating body 30 as well as through the through bores 40 of the regulating body to a volume-variable space 34 formed and arranged on the side of the regulating body 30 facing away from the inlet 22.
  • the size of the space 34 correlates here with the axial position of the regulating body 30.
  • a section of the regulating body 30 acting as a seal 36 lies radially inside a guide sleeve 82 and slides along this in the axial direction.
  • the seal 36 prevents leakage from the inlet connector 25 into the outlet connector 27.
  • the guide sleeve 82 is designed in one piece with a sleeve 84 arranged in the actuator housing 23.
  • the medium 11 that enters the space 34 can enter the sleeve 84 in the actuator housing 23 via gaps.
  • the even distribution of the medium 11 within the guide sleeve 82, the sleeve 84, the space 34, the through bores 40 of the control body 30 and in the flow channel 26 ensures the pressure equalization function of a movement unit 90, which consists of the armature 59 and the control body 30.
  • the surfaces of the movement unit 90 that are pressure-effective in the axial direction are designed in such a way that the control body 30 does not experience any axial force as a result of the medium 11 when the valve device 10 is closed.
  • Particles that get into the actuator housing 23 through gaps within the guide sleeve 82 can also be deposited here.
  • the consequences of this can be varied.
  • the particles can get stuck between two components that are arranged so as to be movable relative to one another, such as the armature 59 and the guide sleeve 82, and result in the movable components becoming stiff.
  • scoring can occur on the components with subsequent functional restrictions. In extreme cases with, for example, a heavily soiled medium 11 with larger particles, complete jamming and the associated functional failure of certain components of the valve device 10 cannot be ruled out. This risk is significantly reduced by the arrangement of the particle protection screen in relation to the through-holes.
  • an O-ring 80 is also arranged between the radially outer region of the guide sleeve 82 and the axially arranged housing projection 29. The actuator 50 is thus protected from chemical and physical properties of the medium 11.
  • valve device 10 in the housing 20 can be fastened to surrounding components by means of the fastening eyes 92 shown in FIG.
  • the valve device according to the invention is inexpensive in the lowering position and robust in operation. It maintains the pressure equalization function of the control body by significantly reducing the penetration of contaminants into the control body.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Magnetically Actuated Valves (AREA)

Abstract

On connaît déjà des dispositifs de soupape comprenant un boîtier (20) ayant une entrée (22) et une sortie (24), un canal d'écoulement (26) formé entre l'entrée (22) et la sortie (24), un siège de soupape (28) formé dans le boîtier (20), un corps de commande (30) ayant une surface d'étanchéité (32) et adapté pour être placé sur et soulevé du siège de soupape (28), des trous de passage (40), qui sont formés dans le corps de commande (30) et qui relient le côté du corps de commande tourné vers l'entrée (22) à un espace (34) sur le côté du corps de commande (30) opposé à l'entrée (22), un actionneur (50) qui comporte un noyau (52), une bobine (54), un porte-bobine (56), une culasse (58) et un induit (59), l'induit (59) étant couplé au corps de commande (30) et étant mobile avec ce dernier. Afin d'obtenir un dispositif de soupape peu coûteux, facile à fabriquer et robuste, protégé contre la contamination, un écran de protection contre les particules (60) est formé intégralement avec l'organisme de contrôle (30). Une surface de projection (62) de l'écran de protection contre les particules (60) dans la direction axiale sur le corps de commande recouvre les extrémités (42) des trous traversants (40) dans le corps de commande (30), et les extrémités (42) de tous les trous de passage (40) sont disposées au moins partiellement à distance axiale de l'écran de protection contre les particules (60).
PCT/EP2020/056583 2019-03-21 2020-03-12 Dispositif de soupape WO2020187673A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102019107268.9 2019-03-21
DE102019107268.9A DE102019107268A1 (de) 2019-03-21 2019-03-21 Ventilvorrichtung

Publications (1)

Publication Number Publication Date
WO2020187673A1 true WO2020187673A1 (fr) 2020-09-24

Family

ID=69844825

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2020/056583 WO2020187673A1 (fr) 2019-03-21 2020-03-12 Dispositif de soupape

Country Status (2)

Country Link
DE (1) DE102019107268A1 (fr)
WO (1) WO2020187673A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2022537822A (ja) * 2019-06-26 2022-08-30 ピアーブルク ゲーエムベーハー 自動車用の冷却剤バルブ

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1450547A1 (de) * 1964-08-19 1968-12-05 Herion Erich Absperreinrichtung,insbesondere Umschaltventil mit Magnetausloesung
DE102012010140A1 (de) 2012-05-24 2013-11-28 Eagle Actuator Components Gmbh & Co. Kg Elektrisches Schubumiuftventil
DE102015202477A1 (de) 2015-02-12 2016-08-18 Robert Bosch Gmbh Gasventil mit verbessertem Dichtverhalten
US20170343115A1 (en) * 2016-05-25 2017-11-30 Swagelok Company Valve with self-aligning stem tip
DE102016120551B4 (de) 2016-10-27 2019-01-24 Pierburg Gmbh Magnetventil für eine Verbrennungskraftmaschine

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE701212C (de) * 1938-06-25 1941-01-11 Askania Werke Akt Ges Kolbenventil, insbesondere fuer unmittelbar wirkende Wasserstandsregler
GB1084960A (en) * 1964-12-30 1967-09-27 Teddington Aircraft Controls L On/off fluid-flow control valve
IT1391673B1 (it) * 2008-08-18 2012-01-17 Carel S P A Struttura di valvola di regolazione perfezionata, particolarmente per la regolazione del flusso di fluidi in impianti frigoriferi
DE102015223894A1 (de) * 2015-12-01 2017-06-01 Festo Ag & Co. Kg Druckentlastetes Ventil

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1450547A1 (de) * 1964-08-19 1968-12-05 Herion Erich Absperreinrichtung,insbesondere Umschaltventil mit Magnetausloesung
DE102012010140A1 (de) 2012-05-24 2013-11-28 Eagle Actuator Components Gmbh & Co. Kg Elektrisches Schubumiuftventil
DE102015202477A1 (de) 2015-02-12 2016-08-18 Robert Bosch Gmbh Gasventil mit verbessertem Dichtverhalten
US20170343115A1 (en) * 2016-05-25 2017-11-30 Swagelok Company Valve with self-aligning stem tip
DE102016120551B4 (de) 2016-10-27 2019-01-24 Pierburg Gmbh Magnetventil für eine Verbrennungskraftmaschine

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2022537822A (ja) * 2019-06-26 2022-08-30 ピアーブルク ゲーエムベーハー 自動車用の冷却剤バルブ
JP7231765B2 (ja) 2019-06-26 2023-03-01 ピアーブルク ゲーエムベーハー 自動車用の冷却剤バルブ
US11795864B2 (en) 2019-06-26 2023-10-24 Pierburg Gmbh Coolant valve for a motor vehicle

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