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WO2019161880A1 - Soupape pilote électromagnetique pour système de fluide sous pression - Google Patents

Soupape pilote électromagnetique pour système de fluide sous pression Download PDF

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Publication number
WO2019161880A1
WO2019161880A1 PCT/EP2018/054079 EP2018054079W WO2019161880A1 WO 2019161880 A1 WO2019161880 A1 WO 2019161880A1 EP 2018054079 W EP2018054079 W EP 2018054079W WO 2019161880 A1 WO2019161880 A1 WO 2019161880A1
Authority
WO
WIPO (PCT)
Prior art keywords
housing part
valve
pilot valve
fluid system
opening
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.)
Ceased
Application number
PCT/EP2018/054079
Other languages
German (de)
English (en)
Inventor
Anita Dickmann
Thomas Grünhagen
Nikolaus Henze
Lukas Romanowski
Markus Schwarz
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.)
Pierburg GmbH
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
Priority to PCT/EP2018/054079 priority Critical patent/WO2019161880A1/fr
Publication of WO2019161880A1 publication Critical patent/WO2019161880A1/fr
Anticipated expiration legal-status Critical
Ceased 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
    • 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
    • F16K1/44—Details of seats or valve members of double-seat valves
    • 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
    • F16K27/00—Construction of housing; Use of materials therefor
    • F16K27/02—Construction of housing; Use of materials therefor of lift valves
    • F16K27/029—Electromagnetically actuated valves
    • 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
    • F16K31/0624—Lift valves
    • F16K31/0627—Lift valves with movable valve member positioned between seats
    • F16K31/0631—Lift valves with movable valve member positioned between seats with ball shaped 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
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
    • F16K31/122—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston
    • F16K31/124—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston servo actuated

Definitions

  • the invention relates to an electromagnetic pilot valve for a pressurized fluid system with an actuator housing part, in which an electromagnetic actuator is arranged, a flow-through housing part, in which an inlet opening and a connection opening are formed and a closure member, which is actuated via the electromagnetic actuator.
  • Such pilot valves are used for example in internal combustion engines for switching off pressure-controlled valve devices for oil cooling of pistons.
  • These piston cooling valves are usually designed as self-opening check valves that release the way to the cooling nozzles at a sufficient pressure difference against the force of a spring acting in the closing direction. They are integrated into the cooling circuit of the internal combustion engine and serve to control a flow to the cooling nozzles, which are usually arranged under the piston. This prevents the cooling nozzles from being unnecessarily supplied with oil when the oil pressure is insufficient during the warm-up phase or when the load is low and thus the pistons do not reach the economically sensible operating temperature. For example, by controlling the piston cooling, nitrogen emissions can be reduced.
  • the inlet channel is additionally provided via a further channel which extends into a solenoid valve housing , connected to the inlet of a solenoid valve whose outlet is connected to a rear side of the piston-shaped check valve in the flow housing, so that when opening the solenoid valve, the inlet pressure acts on both the front and on the back of the check valve, whereby this due to the acting spring force in the closing direction is moved.
  • the pilot valve used has an electromagnetic actuator whose armature is connected to a valve rod which acts on a ball acting in the housing. This valve device requires a large space, since two flow housing to be connected are needed.
  • the pilot valve is executable only with an inlet and outlet, since no further valve seats can be provided in the flow housing.
  • a valve device in which an electromagnetic pilot valve is arranged directly axially adjacent to the check valve, so that only a bore for receiving the valve unit in the flow housing must be provided.
  • the pilot valve is only suitable to be designed with a single valve seat, so that no active shut-off of two different flow paths is possible. It is therefore the object to provide an electromagnetic pilot valve, with the at least two flow paths can be shut off, the valve should require the least possible space.
  • the flow housing should be pre-assembled as possible and easy to manufacture.
  • the electromagnetic pilot valve should be used to reduce oil consumption of a pressure-differential-controlled valve by preventing leakage flows in the closed state of the check valve. This object is achieved by an electromagnetic pilot valve for a pressure fluid system having the features of the main claim 1.
  • the flow-through bare housing part of the pilot valve has an upper housing part, in which the inlet opening is formed, a lower housing part, in which the connection opening is formed and has a valve plate which is clamped between the upper housing part and the lower housing part and having a connecting bore, via the inlet opening with the connection opening is fluidically connectable, wherein the closing member between the valve plate and the upper housing part or the lower housing part is arranged, theteurström bare housing part can be made pre-assembled with the closing member.
  • a particularly simple assembly results when the upper housing part is connected to the lower housing part, whereby the valve plate between the upper housing part and the lower housing part is fixed.
  • the closing member, the valve plate, the upper housing part and the Housing base are connected to each other with only one manufacturing step.
  • a through hole is formed in the upper housing part or in the lower housing part to which a corresponding through hole is formed in the valve plate, wherein fastening means protrude from the lower housing part or the upper housing part through the through holes in the upper housing part or in the lower housing part and the valve plate, by means of which Housing upper part is attached to the lower housing part.
  • the fastening means are formed by at least one pin-shaped projection on the upper housing part or on the lower housing part, which protrude through the through holes in the valve plate and in the upper housing part or in the lower housing part, wherein the protruding from the upper housing part or the lower housing part ends of the pin-shaped projections are deformed for positive fastening. Accordingly, only the valve plate must be pushed over the pin-shaped projection, then the upper housing part or the lower housing part are pushed onto the projection of the other housing part and subsequent deformation results in a positive fastening in only one step.
  • two pin-shaped projections as fastening means protrude through two through holes in the valve plate and two corresponding through holes in the upper housing part and are on her projecting from the upper housing part ends deformed so that they rest on a surface of the upper housing part covering the through holes of the upper housing part and radially surrounding.
  • a first valve seat is formed on the upper housing part, against which the closing member is loaded by means of a spring element.
  • a bias voltage can be generated on the closing member, so that the normal closed position of the first valve seat is closed.
  • the inlet opening on the housing upper part extends axially and opens into a space between the valve plate and the housing upper part, in which the closing member is arranged, which corresponds to the valve seat, which is formed by the space-facing end of the inlet opening. Additional components for the valve seat are not needed. Furthermore, the closing member is arranged captive in the room and can be used so pre-assembled.
  • the lower housing part has a hollow cylindrical projection, in the interior of which a pin-shaped actuator is mounted, which loads the closing member of the pilot valve in the direction of the valve seat by means of the spring element.
  • the spring element can be pre-assembled in the interior in order to apply the force in the direction of the first valve seat.
  • the hollow cylindrical projection has a shoulder in the interior, against which the spring element bears with a first axial end, the opposite axial end axially against an extension section abuts the pin-shaped actuator. Additional components for clamping the spring element are not needed, whereby the assembly is facilitated. Furthermore, a guide of the spring element is formed both on the outside and on the inside, whereby incorrect assembly or buckling of the spring element is reliably prevented during operation.
  • the pin-shaped actuator is guided with its first axial end in the interior of the hollow cylindrical projection on a paragraph with respect to the shoulder facing away from the closing member guide portion and is guided through the extension portion in the interior of the hollow cylindrical projection and through an opening in the valve plate for Closing member protrudes. Through these two guide portions tilting of the actuator is prevented.
  • the pilot valve has a second valve seat which is formed on the valve plate by the space facing boundary of the opening through which the pin-shaped actuator is displaceable, and which can be opened or closed by the closing member, wherein the second valve seat a Flow cross-section defined between the connection opening and an outlet opening, wherein the closure member can be placed by energizing the electromagnetic actuator to the second valve seat.
  • connection opening in the lower housing part is connected via a correspondingly arranged connecting bore in the valve plate to the space which, via the opening through which the pin-shaped actuator is displaceable, with the outlet opening is connected, which is arranged at the end of an outlet channel which is at least partially formed by a groove-shaped recess on the surface of the housing lower part, which is closed by the valve plate radially outside the opening.
  • the arrangement of these compounds on the valve plate, the various channels can be realized in a simple manner in the valve, without having to make longer holes in the housing parts.
  • the valve plate also serves to seal the outlet channel open on one side
  • pilot valve has a valve rod which is connected to an armature of the pilot valve and against the closing member, at the opposite end of the spring-loaded pin-shaped actuator, is displaceable, since in this way a very simple operation by different constructed electromagnet is possible.
  • the closing member is a ball, since it can rotate in space without losing its closing function. In this way, a reliable closure of both valve seats is always ensured with appropriate position of the closing member, without having to provide additional management measures, since the ball acts self-centering on the valve seat.
  • the souström bare housing part is arranged in a flow housing, which surrounds the lower housing part radially, wherein in the lower housing part a through hole is formed, to which in the valve plate, a corresponding passage opening is formed, via which the inlet port is fluidly connected to a channel, the extends on a side facing away from the housing top side of the housing base.
  • an electromagnetic pilot valve for a pressure fluid system which can be easily introduced as a piston cooling valve between a spray nozzle and the oil pump in a single mounting hole with minimal installation and manufacturing costs and can also be used for other applications, without major changes would be necessary.
  • the space required is minimized because the valve itself requires very little space and can be arranged, for example, in the interior of a check valve.
  • two valve seats can be independently completely shut off axially, so that, for example, a leakage current is almost completely prevented with actively closed check valve, without requiring additional space.
  • FIG. 1 shows a side view of a pilot-operated shut-off valve with an inventive electromagnetic pilot valve for a pressurized fluid system in a sectional view.
  • 2 shows a side view of a flow-through housing part of the pilot valve according to the invention in a sectional view.
  • FIG. 3 shows a perspective view of the flow-through housing part of the pilot valve according to the invention from FIG. 2.
  • the pilot-operated check valve consists of a check valve 10 and an electromagnetic pilot valve 12 according to the invention, which are plugged together in a bore 14 of a flow housing 16.
  • the flow housing 16 has an inlet line 18 extending axially to the check valve 10 and two outlet lines 20, 22 extending radially from the check valve 10, the first outlet line 20 leading to a consumer and the second outlet line 22 leading to a fluid container.
  • a check valve housing 24 of the check valve 10 having an inlet 26 fluidly connected to the inlet conduit 18 and an outlet 28 connected to the first outlet conduit 20 of the flow housing 16.
  • an O-ring seal 29 is arranged in a groove on the outer circumference of the check valve housing 24.
  • a slide bush 32 is fixed, in which a check valve body 34 is mounted axially slidably.
  • This check valve body 34 is formed in the present embodiment as a one-sided open Flohlzylinder whose closed front 36 is directed to the inlet 26 and the rear side 38 is directed to the pilot valve 12 according to the invention.
  • a spring element 40 In the interior of the Flohlzylinders is a spring element 40, which between a bottom 42 on the closed side of the Flohlzylinders and one to the check valve body 34 facing wall of a flow-through housing part 44 of Precontrol valve 12 is arranged clamped, which is radially completely and over its entire axial height surrounded by the check valve housing 24 and thus can be placed with the check valve housing 24 in the same bore 14.
  • a shoulder is formed in the check valve housing 24, on which the flow-through bare housing part 44 rests.
  • the pilot valve 12 has an electromagnetic actuator 46 with a coil 48 which is wound in a known manner on a bobbin 50 and can be supplied via a not visible in the view plug with voltage.
  • the electromagnetic circuit is closed by two return plates 54, 56 arranged at the opposite axial ends of the coil carrier 50, as well as a yoke 58, a core 60 and an armature 62.
  • the armature 62 is axially movably mounted on the axially opposite to the check valve 10 axial end within an axially extending in the coil support 50 portion of the first return plate 54.
  • the actuator 46 is disposed within an Aktorgekoruseteils 64, by means of which the pilot-operated check valve is attached to the flow housing 16 by on the one hand a flange 66 of Aktorgephaseuseteils 64 rests on an axial end of the check valve housing 24 and on the other hand, from the flange 66 into the interior of the check valve housing 24th extending annular projection 68 which flows through bare housing part 44 against a shoulder 70 of the check valve housing 24 axially rests.
  • the armature 62 of the pilot valve 12 cooperates with a valve rod 72 which is guided in the core 60 and extends through the core 60 in the flow-through bare housing 44 of the pilot valve 12.
  • the valve rod 72 is arranged opposite to a closing member 74 of the pilot valve 12 arranged in the flow-through housing part 44 and designed as a ball. When energized, the valve rod 72 is pressed against the closing member 74 to this move, while in the non-energized state on the armature 62 and the valve rod 72 no spring or electromagnetic forces act, so that usually and depending on the mounting position in the non-energized state, if necessary, a gap between the closing member 74 and the valve rod 72 is formed.
  • a pin-shaped actuator 76 On the opposite side to the valve rod 72 is a pin-shaped actuator 76 against the closing member 74, wherein the pin-shaped actuator 76 is axially movably guided in a hollow cylindrical projection 78 of a housing base 80 of the flow-through housing part 44.
  • a second spring element 82 In the hollow cylindrical projection 78, a second spring element 82, the pin-shaped actuator 76 is disposed radially surrounding.
  • the second spring member 82 is disposed between an inner shoulder 84 of the housing base 80 formed immediately above a first guide portion 85 of the pin-shaped actuator 76 and a radially extending extension portion 86 of the pin-shaped one Actuator 76, which serves as a second guide portion in the hollow cylindrical projection 78, clamped.
  • the elements of the pilot valve 12 and the check valve 10 are arranged so that the pin-shaped actuator 76 is disposed radially within the second spring element 82, which in turn is surrounded by the hollow cylindrical projection 78 of the flow-through housing part 44.
  • an annular recess is formed, into which the slide bush 32 and depending on the position of the check valve 10, the check valve 10 protrudes.
  • the closing member 74 is pressed with not energized actuator 46 against a first valve seat 88 which is formed on an upper housing part 90 of the flow-through housing part 44, which is fixedly connected to the lower housing part 80 with the interposition of a valve plate 92. It is between the Valve plate 92 and the upper housing part 90, a space 93 is formed, in which the closing member 74 is guided by inner walls of the upper housing part 90 guided. In the upper housing part 90, an inlet opening 94 is formed, which opens at the first valve seat 88, so that the valve rod 72 projects through the inlet opening 94.
  • This second valve seat 96 is formed at the end facing the housing top 90 of an opening 98 in the valve plate 92, through which the pin-shaped actuator 76 projects, leaving a gap between the walls of the opening 98 and the pin-shaped actuator 76.
  • the actuator 46 is de-energized. This has the consequence that the check valve 10 opens or closes depending on the applied pressure difference.
  • an additional channel 100 which is formed by an axially extending recess in the check valve housing 24 between this and the sliding bush 32, fluid with the existing inlet pressure at the inlet port 94 of the pilot valve 12 at. Flierzu is in extension of the channel 100, a passage opening 102 in the housing part 80 is arranged, which leads via a nozzle-shaped passage opening 104 in the valve plate 92 in a space 106 between the actuator 46 and the flow-through housing part 44, from which the inlet opening 94 into the interior of the flow-through housing part 44 extends.
  • the flow-through housing part 44 can be seen in FIG. This has in the lower housing part on an axially extending connecting opening 108 which opens at the back 38 of the check valve body 34 and corresponds to a connecting hole 109 which is formed on the valve plate 92 and in the space 93, in which the closing member 74 is arranged, opens. Furthermore, this space 93 is connectable through a gap between the pin-shaped actuator 76 and the opening 98 with an outlet channel 111, which is formed as a groove on the lower housing lower part 80 and is closed by the valve plate 92. This channel 111 opens into a radial outlet opening 110 of the flow-through housing part 44.
  • the closing member 74 rests on the first valve seat 88, so that no fluid on the back 38 of the check valve body 34 from the inlet port 94 via the space 93 and the connecting hole 108 and the connecting hole 109 to the back 38 of the check valve body 34 can. Instead, however, pressure fluid may flow from the rear face 38 of the check valve body 34 into the space 93 between the valve plate 92 and the housing top 90 through the communication port 108 and the communication bore 109, and from there through the gap between the orifice 98 and the pin-shaped actuator 76 as well the exhaust passage 111 to the outlet port 110, which is connected via the discharge passage 30 with the outlet 22, so that the pressure at the back 38 of the check valve body 34 is reduced.
  • the electromagnetic actuator 46 is energized.
  • the closing member 74 is pressed by the valve rod 72 against the force of the second spring element 82 on the second valve seat 96, so that a fluid connection between the back 38 of the check valve body 34 and the discharge channel 30 is interrupted.
  • pressurized fluid from the inlet 26 via the channel 100, the passage opening 102, the nozzle-shaped passage opening 104 and the inlet port 94, at the end of the now open from the first valve seat 88 surrounded flow cross-section is formed over the communication hole 109 to the connection opening 108 and thus to the back of the check valve 10 flow.
  • the entire housing part can be pre-assembled without having to use additional components as fasteners.
  • the closing member is secured in the housing, so that such a configured pilot valve is suitable for various applications and can be used in different installation locations. The entire assembly of the pilot valve is simplified and can be realized in a few steps. Furthermore, the possibility of completely shutting off two flow paths is achieved in a minimum space. Such a pilot valve can be easily accommodated in the flow housing of a pressure valve.

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

Abstract

On connaît déjà des soupapes pilotes électromagnétiques destinées à des systèmes de fluide sous pression. Celles-ci comportent une partie de boîtier d'actionneur (64) dans laquelle un actionneur électromagnétique (46) est disposé, une partie de boîtier (44) qui peut être traversée et dans laquelle une ouverture d'entrée (94) et une ouverture de liaison (108) sont ménagées et un élément de fermeture (74) qui peut être actionné par l'actionneur électromagnétique (46). Pour pouvoir munir ces soupapes pilotes électromagnétiques de deux sièges de soupape dans un espace particulièrement petit, selon l'invention la partie de boîtier (44), pouvant être traversée, de la soupape pilote (12) comporte une partie de boîtier supérieure (90) dans laquelle l'ouverture d'entrée (94) est ménagée, une partie de boîtier inférieure (80) dans laquelle l'ouverture de liaison (108) est ménagée et une plaque de soupape (92) qui est serrée entre la partie de boîtier supérieure (90) et la partie de boîtier inférieure (80) et qui comporte un alésage de liaison (109) permettant de relier fluidiquement l'ouverture d'entrée (94) à l'ouverture de liaison (108), l'élément de fermeture (74) étant disposé entre la plaque de soupape (92) et la partie de boîtier supérieure (90) ou la partie de boîtier inférieure (80).
PCT/EP2018/054079 2018-02-20 2018-02-20 Soupape pilote électromagnetique pour système de fluide sous pression Ceased WO2019161880A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/EP2018/054079 WO2019161880A1 (fr) 2018-02-20 2018-02-20 Soupape pilote électromagnetique pour système de fluide sous pression

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2018/054079 WO2019161880A1 (fr) 2018-02-20 2018-02-20 Soupape pilote électromagnetique pour système de fluide sous pression

Publications (1)

Publication Number Publication Date
WO2019161880A1 true WO2019161880A1 (fr) 2019-08-29

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2018/054079 Ceased WO2019161880A1 (fr) 2018-02-20 2018-02-20 Soupape pilote électromagnetique pour système de fluide sous pression

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WO (1) WO2019161880A1 (fr)

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4596273A (en) * 1985-04-11 1986-06-24 Diesel Kiki Co., Ltd. Double-seat electromagnetic valve
US4756331A (en) * 1985-05-25 1988-07-12 Robert Bosch Gmbh Electromagnetic valve
DE8914152U1 (de) * 1989-12-01 1990-02-08 Pierburg GmbH, 4040 Neuss Elektromagnetisches Mehrwegeventil
DE10110401A1 (de) * 2000-09-29 2002-04-11 Schultz Wolfgang E Ventil und Verfahren zur Herstellung eines Ventils
DE102005027429A1 (de) * 2005-03-17 2006-09-21 Pacific Industrial Co., Ltd., Ogaki Ventil und Verfahren zur Herstellung des Ventils
DE102008019762A1 (de) * 2008-04-18 2009-10-22 Robert Bosch Gmbh Elektropneumatisches 3/2-Wegeventil in Sitzbauweise
US20130152883A1 (en) 2008-09-09 2013-06-20 Bontaz Centre Device for controlling supply of a system with a fluid
DE102014212329A1 (de) 2014-06-26 2015-12-31 Robert Bosch Gmbh Ventileinrichtung
EP3225799A1 (fr) * 2016-04-01 2017-10-04 HUSCO Automotive Holdings LLC Soupape de régulation de jet de refroidissement d'huile à commande pilote

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4596273A (en) * 1985-04-11 1986-06-24 Diesel Kiki Co., Ltd. Double-seat electromagnetic valve
US4756331A (en) * 1985-05-25 1988-07-12 Robert Bosch Gmbh Electromagnetic valve
DE8914152U1 (de) * 1989-12-01 1990-02-08 Pierburg GmbH, 4040 Neuss Elektromagnetisches Mehrwegeventil
DE10110401A1 (de) * 2000-09-29 2002-04-11 Schultz Wolfgang E Ventil und Verfahren zur Herstellung eines Ventils
DE102005027429A1 (de) * 2005-03-17 2006-09-21 Pacific Industrial Co., Ltd., Ogaki Ventil und Verfahren zur Herstellung des Ventils
DE102008019762A1 (de) * 2008-04-18 2009-10-22 Robert Bosch Gmbh Elektropneumatisches 3/2-Wegeventil in Sitzbauweise
US20130152883A1 (en) 2008-09-09 2013-06-20 Bontaz Centre Device for controlling supply of a system with a fluid
DE102014212329A1 (de) 2014-06-26 2015-12-31 Robert Bosch Gmbh Ventileinrichtung
EP3225799A1 (fr) * 2016-04-01 2017-10-04 HUSCO Automotive Holdings LLC Soupape de régulation de jet de refroidissement d'huile à commande pilote

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