EP3728908A1 - Valve - Google Patents

Valve

Info

Publication number
EP3728908A1
EP3728908A1 EP18829820.2A EP18829820A EP3728908A1 EP 3728908 A1 EP3728908 A1 EP 3728908A1 EP 18829820 A EP18829820 A EP 18829820A EP 3728908 A1 EP3728908 A1 EP 3728908A1
Authority
EP
European Patent Office
Prior art keywords
housing
disc
seal
piston
valve according
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Withdrawn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
EP18829820.2A
Other languages
German (de)
French (fr)
Inventor
Rosario Bonanno
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.)
Vitesco Technologies GmbH
Original Assignee
Vitesco Technologies Germany 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 Vitesco Technologies Germany GmbH filed Critical Vitesco Technologies Germany GmbH
Publication of EP3728908A1 publication Critical patent/EP3728908A1/en
Withdrawn legal-status Critical Current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
    • 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
    • F16K1/46—Attachment of sealing rings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
    • F02B37/12—Control of the pumps
    • F02B37/16—Control of the pumps by bypassing charging air
    • 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
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/02—Sealings between relatively-stationary surfaces
    • F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
    • F16J15/061—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with positioning means
    • 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
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/02—Sealings between relatively-stationary surfaces
    • F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
    • F16J15/062—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces characterised by the geometry of the seat
    • 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
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/02—Sealings between relatively-stationary surfaces
    • F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
    • F16J15/08—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with exclusively metal packing
    • F16J15/0887—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with exclusively metal packing the sealing effect being obtained by elastic deformation of the packing
    • 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
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/02—Sealings between relatively-stationary surfaces
    • F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
    • F16J15/10—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing
    • F16J15/104—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing characterised by structure
    • F16J15/106—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing characterised by structure homogeneous
    • 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
    • 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
    • F16K31/0644—One-way valve
    • F16K31/0655—Lift valves
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

Definitions

  • the invention relates to a valve with a housing, egg nem arranged in the housing solenoid, a movable id of the Soleno pin and connected to the pin pot-shaped piston, a seal disposed in the housing, which seals the piston against the housing.
  • valves are used, inter alia, as a diverter valve on the turbocharger in motor vehicles to release a bypass to the suction side in overrun and are thus known.
  • a rapid opening and closing of the valve is an essential requirement.
  • when closing it depends on the immediate closing by the application of the piston to a valve seat.
  • the valve seat is formed by the housing of the turbocharger to which the valve is flanged.
  • the axially displaceable piston is sealed against the housing.
  • the seal is made by a seal.
  • Such seals often have a V-shaped cross-section, wherein the legs of the V are formed as sealing lips. Seals with such V-shaped cross sections are also made of plastic, the type of production being material-dependent. Depending on the material such seals are made by turning, which leads to ho hen cost of the seal.
  • the invention is therefore based on the object to provide a valve which allows a simple sealing of the piston against the housing.
  • the valve should also cost low cost.
  • the seal is a disc with a radially inner sealing surface which is clamped at the radially outer edge in the housing.
  • the cross section of a Such seal is much easier and thus pondere güns tiger than conventional seals.
  • the disc shape offers a suitable geometry, so that the clamping can also be done with ge ringem effort.
  • the clamping of the disc is particularly simple in a vorteilhaf th embodiment, when the disc is clamped between the housing and a housing socket.
  • the part before is that conventional valves have these two construction parts.
  • existing valves can be equipped with the new seal. Only the hous se and the housing socket must be slightly modified. The adjustment effort is kept within narrow limits.
  • the sealing effect can thereby increase according to a further embodiment, when the disc bears under pretension on the piston.
  • the seal between the housing and another component clamped wherein the further component, preferably a piston surrounding the cylinder liner has a radially inwardly directed GE collar on which rests the cone-shaped seal, wherein the collar is aligned at an angle to its cylindri rule wall. The angle corresponds to the inclination of the cone, so that the cone-shaped seal rests flat on the collar.
  • the friction can be further reduced if the disk consists of polytetrafluoroethylene (PTFE).
  • PTFE polytetrafluoroethylene
  • such a disk can be produced as a turned part.
  • the wear over the service life can be achieved if the sealing effect does not decrease by the sealing surface of the disk having a radius.
  • the clamping of the seal designed in another embodiment easily when the disc is molded on the housing or housin seteil. In this way, a particularly in niger composite between seal and the clamping member is achieved. Another advantage is that the installation of the seal is eliminated.
  • the invention is described in more detail ben. It shows in
  • Fig. 1 is a sectional view of a valve according to the prior art and Fig. 2 is an enlarged sectional view of the erfindungsge MAESSEN valve in the region of the piston.
  • Figure 1 shows the valve comprising a housing 1.
  • the housing 1 further has a molded flange 3, via which the Ge housing 1 is flanged to a turbocharger, not shown, in the region of egg ner bypass line 4.
  • a solenoid 5 with a coil 6 and a metal pin 7 is angeord net.
  • the metal pin 7 is ver with a pot-shaped piston 8 connected, which has a seal 10 at the periphery of its bottom 9.
  • a spring 7a presses the piston 8 in the direction of the valve seat.
  • the housing 1 further has a cylindrical portion 11 which extends in the direction of the piston 8.
  • a cylinder housing 12 connected to the Ge housing 1 surrounds the cylindrical portion 11.
  • the cylinder liner 12 has a radially inwardly directed collar 13 on which a V-shaped seal 14 is located.
  • the end of the cylindrical portion 11 holds the log device 14 in position.
  • the inner leg of the seal 14 seals the piston against the housing. If the solenoid 5 is energized, a magnetic force acts on the armature 2, whereby the piston 8 is moved in the direction of the housing 1.
  • the seal 14 seals the piston 8 against the housing 1.
  • the erfindungsgzeße valve in Figure 2 has a cone-shaped seal 14 made of PTFE with a thickness of 1mm.
  • the sealing surface 15 which bears against the piston 8 has a radius 16.
  • the seal 14 is located with its underside surface on a radially inwardly projecting collar 13 which is inclined in accordance with the Ko nusform. The clamping of the seal 14 by means of the cylindrical portion 11 of the housing 1, which rests on the radially outer edge of the disc.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Magnetically Actuated Valves (AREA)
  • Lift Valve (AREA)
  • Supercharger (AREA)

Abstract

The invention relates to a valve comprising a housing (1), a solenoid (5) arranged in the housing (1), a pin (7) that can be moved by the solenoid (5), a cup-shaped piston (8) that is connected to the pin (7), and a seal (14) which is arranged in the housing (1) for sealing the piston (8) against the housing (1). The seal (14) is a disk having a radially internal sealing surface (15), which is clamped at the radially outer edge in the housing (12, 11).

Description

Ventil Valve
Gegenstand der Erfindung ist ein Ventil mit einem Gehäuse, ei nem in dem Gehäuse angeordneten Solenoid, einem von dem Soleno id bewegbaren Stift und einem mit dem Stift verbundenen topf förmigen Kolben, einer im Gehäuse angeordneten Dichtung, die den Kolben gegen das Gehäuse abdichtet. The invention relates to a valve with a housing, egg nem arranged in the housing solenoid, a movable id of the Soleno pin and connected to the pin pot-shaped piston, a seal disposed in the housing, which seals the piston against the housing.
Solche Ventile werden unter anderem als Schubumluftventil am Turbolader in Kraftfahrzeugen eingesetzt, um im Schubbetrieb einen Bypass zur Saugseite freizugeben und sind somit bekannt. Um ein zu starkes Abbremsen des Turboladers zu verhindern aber auch ein schnelles Anfahren zu gewährleisten, ist ein schnelles Öffnen und Schließen des Ventils eine wesentliche Vorausset zung. Insbesondere beim Schließen kommt es auf das sofortige Verschließen durch das Anlegen des Kolbens an einen Ventilsitz an. Der Ventilsitz wird vom Gehäuse des Turboladers gebildet, an dem das Ventil angeflanscht wird. Der axial verschiebliche Kolben ist dabei gegen das Gehäuse abgedichtet. Die Abdichtung erfolgt durch eine Dichtung. Solche Dichtungen besitzen oftmals einen V-förmigen Querschnitt, wobei die Schenkel des V als Dichtlippen ausgebildet sind. Dichtungen mit solchen V-förmigen Querschnitten werden auch aus Kunststoff hergestellt, wobei die Art der Herstellung werkstoffabhängig ist. Je nach Werkstoff werden solche Dichtungen mittels Drehen hergestellt, was zu ho hen Kosten für die Dichtung führt. Such valves are used, inter alia, as a diverter valve on the turbocharger in motor vehicles to release a bypass to the suction side in overrun and are thus known. In order to prevent excessive braking of the turbocharger but also to ensure a quick start, a rapid opening and closing of the valve is an essential requirement. In particular, when closing it depends on the immediate closing by the application of the piston to a valve seat. The valve seat is formed by the housing of the turbocharger to which the valve is flanged. The axially displaceable piston is sealed against the housing. The seal is made by a seal. Such seals often have a V-shaped cross-section, wherein the legs of the V are formed as sealing lips. Seals with such V-shaped cross sections are also made of plastic, the type of production being material-dependent. Depending on the material such seals are made by turning, which leads to ho hen cost of the seal.
Der Erfindung liegt daher die Aufgabe zugrunde ein Ventil zu schaffen, welches eine einfache Abdichtung des Kolbens gegen das Gehäuse ermöglicht. Das Ventil soll darüber hinaus kosten günstig sein. The invention is therefore based on the object to provide a valve which allows a simple sealing of the piston against the housing. The valve should also cost low cost.
Gelöst wird die Aufgabe dadurch, dass die Dichtung eine Scheibe mit einer radial innenliegenden Dichtfläche ist, die am radial äußeren Rand im Gehäuse eingespannt ist. Der Querschnitt einer solchen Dichtung ist wesentlich einfacher und somit kostengüns tiger als herkömmliche Dichtungen. Überraschenderweise hat sich gezeigt, dass trotz der einfachen Querschnittsgeometrie eine zuverlässige Abdichtung des Kolbens erfolgen kann, wenn die Dichtung eingespannt ist. Die Scheibenform bietet hierbei eine geeignete Geometrie, so dass die Einspannung ebenfalls mit ge ringem Aufwand erfolgen kann. The object is achieved in that the seal is a disc with a radially inner sealing surface which is clamped at the radially outer edge in the housing. The cross section of a Such seal is much easier and thus kostengüns tiger than conventional seals. Surprisingly, it has been found that despite the simple cross-sectional geometry, a reliable sealing of the piston can take place when the seal is clamped. The disc shape offers a suitable geometry, so that the clamping can also be done with ge ringem effort.
Die Einspannung der Scheibe gestaltet sich in einer vorteilhaf ten Ausgestaltung besonders einfach, wenn die Scheibe zwischen dem Gehäuse und einer Gehäusebuchse eingespannt ist. Der Vor teil besteht darin, dass herkömmliche Ventile diese beiden Bau teile aufweisen. Damit können auch bereits vorhandene Ventile mit der neuen Dichtung ausgerüstet werden. Lediglich das Gehäu se und die Gehäusebuchse müssen geringfügig modifiziert werden. Der Anpassungsaufwand hält sich damit in engen Grenzen. The clamping of the disc is particularly simple in a vorteilhaf th embodiment, when the disc is clamped between the housing and a housing socket. The part before is that conventional valves have these two construction parts. Thus, existing valves can be equipped with the new seal. Only the hous se and the housing socket must be slightly modified. The adjustment effort is kept within narrow limits.
Die Dichtwirkung lässt gemäß einer weiteren Ausgestaltung dadurch erhöhen, wenn die Scheibe unter Vorspannung am Kolben anliegt . The sealing effect can thereby increase according to a further embodiment, when the disc bears under pretension on the piston.
Je nach Art der Vorspannung ergibt sich bei einer Bewegung zwi schen Dichtung und Kolben eine bestimmt Reibung. Eine ausrei chende Vorspannung mit relativ geringer Reibung wird erreicht, wenn die Scheibe konusförmig ist. Unter konusförmig wird in diesem Fall eine Scheibengeometrie nach Art einer Tellerfeder verstanden. Durch diese Form greift die Dichtfläche in einem Winkel an der zylindrischen Wandung des topfförmigen Kolbens an. Es hat sich gezeigt, dass ein Winkel von 30° bis 50° beson ders vorteilhaft ist. Depending on the type of bias results in a movement between rule seal and piston a certain friction. A sufficient level of bias with relatively little friction is achieved when the disc is cone-shaped. Under cone-shaped is understood in this case a disc geometry in the manner of a diaphragm spring. By this shape, the sealing surface engages at an angle to the cylindrical wall of the cup-shaped piston. It has been shown that an angle of 30 ° to 50 ° is FITS advantageous.
Die Langzeitstabilität der Dichtung lässt sich weiter dadurch verbessern, wenn die Einspannung eine möglichst geringe Belas tung in die Dichtung einträgt. In vorteilhafter Ausgestaltung ist die Dichtung zwischen Gehäuse und einem weiteren Bauteil eingespannt, wobei das weitere Bauteil, vorzugsweise eine den Kolben umschließende Zylinderbuchse einen nach radial innen ge richteten Kragen besitzt, auf dem die konusförmige Dichtung aufliegt, wobei der Kragen in einem Winkel zu seiner zylindri schen Wandung ausgerichtet ist. Der Winkel entspricht dabei der Neigung des Konus, so dass die konusförmige Dichtung flächig auf dem Kragen aufliegt. Beim Verspannen der Dichtung mit dem Gehäuse wird die Kraft gleichmäßig über den Querschnitt ver teilt. The long-term stability of the seal can be further improved if the clamping enters as low as possible Belas tion in the seal. In an advantageous embodiment, the seal between the housing and another component clamped, wherein the further component, preferably a piston surrounding the cylinder liner has a radially inwardly directed GE collar on which rests the cone-shaped seal, wherein the collar is aligned at an angle to its cylindri rule wall. The angle corresponds to the inclination of the cone, so that the cone-shaped seal rests flat on the collar. When clamping the seal with the housing, the force is evenly distributed over the cross section ver.
Die Reibung lässt sich dabei mit in einer weiteren vorteilhaf- ten Ausgestaltung weiter reduzieren, wenn die Scheibe aus Poly- tetrafluorethylen (PTFE) besteht. In a further advantageous embodiment, the friction can be further reduced if the disk consists of polytetrafluoroethylene (PTFE).
In einfacher Weise lässt sich eine solche Scheibe als Drehteil herstellen . In a simple way, such a disk can be produced as a turned part.
Der Verschleiß über die Lebensdauer lässt sich bei nicht nach lassender Dichtwirkung dadurch erreichen, dass die Dichtfläche der Scheibe einen Radius aufweist. The wear over the service life can be achieved if the sealing effect does not decrease by the sealing surface of the disk having a radius.
Die Einspannung der Dichtung gestaltet sich in einer anderen Ausgestaltung einfach, wenn die Scheibe am Gehäuse oder Gehäu seteil angespritzt ist. Auf diese Weise wird ein besonders in niger Verbund zwischen Dichtung und dem einspannenden Bauteil erreicht. Ein weiterer Vorteil besteht darin, dass die Montage der Dichtung entfällt. The clamping of the seal designed in another embodiment easily when the disc is molded on the housing or housin seteil. In this way, a particularly in niger composite between seal and the clamping member is achieved. Another advantage is that the installation of the seal is eliminated.
An einem Ausführungsbeispiel wird die Erfindung näher beschrie ben. Es zeigt in In one embodiment, the invention is described in more detail ben. It shows in
Fig. 1 eine Schnittdarstellung eines Ventils nach dem Stand der Technik und Fig. 2 eine vergrößerte Schnittdarstellung des erfindungsge mäßen Ventils im Bereich des Kolbens. Fig. 1 is a sectional view of a valve according to the prior art and Fig. 2 is an enlarged sectional view of the erfindungsge MAESSEN valve in the region of the piston.
Figur 1 zeigt das Ventil, umfassend ein Gehäuse 1. Das Gehäuse 1 besitzt weiter einen angeformten Flansch 3, über den das Ge häuse 1 an einem nicht dargestellten Turbolader im Bereich ei ner Bypassleitung 4 angeflanscht ist. In dem Gehäuse 1 ist ein Solenoid 5 mit einer Spule 6 und einem Metallstift 7 angeord net. Der Metallstift 7 ist mit einem topfförmigen Kolben 8 ver bunden, der am Umfang seines Bodens 9 eine Dichtung 10 besitzt. Eine Feder 7a drückt dabei den Kolben 8 in Richtung Ventilsitz. Das Gehäuse 1 besitzt weiter einen zylindrischen Abschnitt 11, der sich in Richtung des Kolbens 8 erstreckt. Eine mit dem Ge häuse 1 verbundene Zylinderbuchse 12 umgibt den zylindrischen Abschnitt 11. Die Zylinderbuchse 12 hat einen nach radial innen gerichteten Kragen 13, auf dem eine V-förmige Dichtung 14 auf liegt. Das Ende des zylindrischen Abschnitts 11 hält die Dich tung 14 in Position. Der innenliegende Schenkel der Dichtung 14 dichtet den Kolben gegen das Gehäuse ab. Sofern das Solenoid 5 bestromt wird, wirkt eine magnetische Kraft auf den Anker 2, wodurch der Kolben 8 in Richtung Gehäuse 1 bewegt wird. Die Dichtung 14 dichtet dabei den Kolben 8 gegen das Gehäuse 1 ab. Figure 1 shows the valve comprising a housing 1. The housing 1 further has a molded flange 3, via which the Ge housing 1 is flanged to a turbocharger, not shown, in the region of egg ner bypass line 4. In the housing 1, a solenoid 5 with a coil 6 and a metal pin 7 is angeord net. The metal pin 7 is ver with a pot-shaped piston 8 connected, which has a seal 10 at the periphery of its bottom 9. A spring 7a presses the piston 8 in the direction of the valve seat. The housing 1 further has a cylindrical portion 11 which extends in the direction of the piston 8. A cylinder housing 12 connected to the Ge housing 1 surrounds the cylindrical portion 11. The cylinder liner 12 has a radially inwardly directed collar 13 on which a V-shaped seal 14 is located. The end of the cylindrical portion 11 holds the log device 14 in position. The inner leg of the seal 14 seals the piston against the housing. If the solenoid 5 is energized, a magnetic force acts on the armature 2, whereby the piston 8 is moved in the direction of the housing 1. The seal 14 seals the piston 8 against the housing 1.
Das erfindungsgmäße Ventil in Figur 2 besitzt eine konusförmige Dichtung 14 aus PTFE mit einer Dicke von 1mm. Die Dichtfläche 15, welche am Kolben 8 anliegt weist einen Radius 16 auf. Die Dichtung 14 liegt mit ihrer Unterseite flächig auf einem nach radial innen ragenden Kragen 13 auf, der entsprechend der Ko nusform geneigt ist. Die Einspannung der Dichtung 14 erfolgt mittels des zylindrischen Abschnitts 11 des Gehäuses 1, der am radial äußeren Rand der Scheibe aufsitzt. The erfindungsgmäße valve in Figure 2 has a cone-shaped seal 14 made of PTFE with a thickness of 1mm. The sealing surface 15 which bears against the piston 8 has a radius 16. The seal 14 is located with its underside surface on a radially inwardly projecting collar 13 which is inclined in accordance with the Ko nusform. The clamping of the seal 14 by means of the cylindrical portion 11 of the housing 1, which rests on the radially outer edge of the disc.

Claims

Patentansprüche claims
1. Ventil mit einem Gehäuse, einem in dem Gehäuse angeordne ten Solenoid, einem von dem Solenoid bewegbaren Stift und einem mit dem Stift verbundenen topfförmigen Kolben, einer im Gehäuse angeordneten Dichtung, die den Kolben gegen das Gehäuse abdichtet, dadurch gekennzeichnet, dass die Dich tung (14) eine Scheibe mit einer radial innenliegenden Dichtfläche (15) ist, die am radial äußeren Rand im Gehäu se (12, 11) eingespannt ist. A valve comprising a housing, a solenoid disposed within the housing, a pin movable by the solenoid, and a cup-shaped piston connected to the pin, a gasket disposed in the housing sealing the piston against the housing, characterized in that the gasket tion (14) is a disc with a radially inner sealing surface (15) which is clamped at the radially outer edge in the housin se (12, 11).
2. Ventil nach Anspruch 1, dadurch gekennzeichnet, dass die Scheibe (14) zwischen dem Gehäuse (11) und einer Zylinder buchse (12) eingespannt ist. 2. Valve according to claim 1, characterized in that the disc (14) between the housing (11) and a cylinder bushing (12) is clamped.
3. Ventil nach Anspruch 2, dadurch gekennzeichnet, dass die Scheibe (14) unter Vorspannung am Kolben (8) anliegt. 3. Valve according to claim 2, characterized in that the disc (14) bears under prestress on the piston (8).
4. Ventil nach zumindest einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Scheibe (14) konusförmig ist . 4. Valve according to at least one of the preceding claims, characterized in that the disc (14) is cone-shaped.
5. Ventil nach zumindest einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Scheibe (14) aus PTFE be steht . 5. Valve according to at least one of the preceding claims, characterized in that the disc (14) is made of PTFE be.
6. Ventil nach Anspruch 5, dadurch gekennzeichnet, dass die Scheibe (14) ein Drehteil ist. 6. Valve according to claim 5, characterized in that the disc (14) is a rotating part.
7. Ventil nach Anspruch 5, dadurch gekennzeichnet, dass die Dichtfläche (15) der Scheibe (14) einen Radius (16) auf weist. 7. Valve according to claim 5, characterized in that the sealing surface (15) of the disc (14) has a radius (16).
8. Ventil nach zumindest einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Scheibe (14) am Gehäuse (1, 11) oder am Gehäuseteil (12) angespritzt ist. 8. Valve according to at least one of the preceding claims, characterized in that the disc (14) on the housing (1, 11) or on the housing part (12) is injection-molded.
EP18829820.2A 2017-12-21 2018-12-19 Valve Withdrawn EP3728908A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102017223583.7A DE102017223583A1 (en) 2017-12-21 2017-12-21 Valve
PCT/EP2018/085828 WO2019121903A1 (en) 2017-12-21 2018-12-19 Valve

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US (1) US20200325995A1 (en)
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CN (1) CN111448406A (en)
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WO (1) WO2019121903A1 (en)

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DE2951150C2 (en) * 1979-12-19 1984-10-18 VAT Aktiengesellschaft für Vakuum-Apparate-Technik, Haag Metal sealing device on a high vacuum seal
DE102008031738A1 (en) * 2008-07-04 2010-01-07 Pierburg Gmbh Ambient-air pulsed valve for internal combustion engine, has mobile valve unit or housing formed such that seal organ and sealing surface stay in effective connection in closed position
DE102010026121B4 (en) * 2010-07-05 2013-01-03 Pierburg Gmbh Solenoid valve for an internal combustion engine
EP2673535B1 (en) * 2011-02-10 2016-11-30 Schaeffler Technologies AG & Co. KG Seal for a hydraulic piston-cylinder arrangement
DE102011054003B4 (en) * 2011-09-28 2017-03-16 Pierburg Gmbh Valve for an internal combustion engine with a sealing arrangement
DE102014113540B3 (en) * 2014-09-19 2016-02-04 Pierburg Gmbh Recirculation valve for a compressor of an internal combustion engine
DE112015006805T5 (en) * 2015-08-13 2018-05-17 Mitsubishi Electric Corporation solenoid valve
US9650947B1 (en) * 2015-11-23 2017-05-16 Nachi-Fujikoshi Corp. Air bypass valve
PL415487A1 (en) * 2015-12-31 2017-07-03 General Electric Company Moulded composite shield, protecting against wear of edges, intended for a joint in the form of the V-shaped key and the V-shaped vane

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DE102017223583A1 (en) 2019-06-27
US20200325995A1 (en) 2020-10-15
WO2019121903A1 (en) 2019-06-27
CN111448406A (en) 2020-07-24

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