EP1838983A1 - Valve magnétique dotée d'un clapet de non retour intégré - Google Patents

Valve magnétique dotée d'un clapet de non retour intégré

Info

Publication number
EP1838983A1
EP1838983A1 EP06700815A EP06700815A EP1838983A1 EP 1838983 A1 EP1838983 A1 EP 1838983A1 EP 06700815 A EP06700815 A EP 06700815A EP 06700815 A EP06700815 A EP 06700815A EP 1838983 A1 EP1838983 A1 EP 1838983A1
Authority
EP
European Patent Office
Prior art keywords
solenoid valve
connection
rubber lip
pressure
check valve
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Withdrawn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
EP06700815A
Other languages
German (de)
English (en)
Inventor
Markus Deeg
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.)
Knorr Bremse Systeme fuer Nutzfahrzeuge GmbH
Knorr Bremse Systeme fuer Schienenfahrzeuge GmbH
Original Assignee
Knorr Bremse Systeme fuer Nutzfahrzeuge GmbH
Knorr Bremse Systeme fuer Schienenfahrzeuge 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 Knorr Bremse Systeme fuer Nutzfahrzeuge GmbH, Knorr Bremse Systeme fuer Schienenfahrzeuge GmbH filed Critical Knorr Bremse Systeme fuer Nutzfahrzeuge GmbH
Publication of EP1838983A1 publication Critical patent/EP1838983A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T15/00—Construction arrangement, or operation of valves incorporated in power brake systems and not covered by groups B60T11/00 or B60T13/00
    • B60T15/02—Application and release valves
    • B60T15/025—Electrically controlled valves
    • B60T15/027—Electrically controlled valves in pneumatic systems
    • 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

Definitions

  • the present invention relates to a solenoid valve having at least a first connection and a second connection and at least two working positions.
  • Such solenoid valves are also referred to as 2/2 solenoid valves.
  • the invention is not limited to 2/2-solenoid valves, but can be used in connection with any solenoid valves, especially in connection with 3/2-solenoid valves.
  • solenoid valves for example, it is possible to selectively connect a working space with a pressure source or a pressure sink, it being provided that the working space in the idle state of the solenoid valve, that is, in its idle state, with the pressure sink is in communication.
  • the connections of multiple solenoid valves are often connected to the pressure sink.
  • there is a throttling effect in front of the pressure sink for example by means of a silencer, so that the pressure reduction in one or more work spaces results in a pressure increase in the line sections communicating with the pressure sink.
  • Solenoid valves are in their rest position, in which they connect a respective solenoid valve associated working space with the pressure sink, a pressure reduction in a working space due to the aforementioned throttling effect can lead to an undesirable increase in pressure in another working space.
  • the invention has for its object to provide a solenoid valve of the type mentioned above, with which the above-described problems can be avoided without additional separate components are required.
  • the solenoid valve according to the invention builds on the generic state of the art in that at least one of the terminals is equipped with an integrated check valve in the solenoid valve.
  • an integrated check valve By means of such an integrated check valve, it is possible to dispense with separate check valves, so that the overall required installation space can be reduced.
  • the integrated check valve is preferably designed so that the dimensions of the solenoid valve according to the invention in comparison to corresponding conventional conventional solenoid valves does not change or only insignificantly.
  • the possible working positions and the Depending on the intended use it is also possible if appropriate for a plurality of terminals of the solenoid valve according to the invention to be equipped with integrated non-return valves.
  • the at least one connection is intended to be connected to a pressure sink.
  • the inventive solenoid valve has a third terminal, wherein it connects the first terminal to the second terminal and closes the third terminal in a first working position, while in a second working position with the second terminal connects to the third port and closes the first port.
  • a 3/2 solenoid valve it is possible, for example, to selectively connect a working space with a pressure source or a pressure sink.
  • the check valve comprises at least one rubber lip.
  • the rubber lip may for example be L-shaped, wherein it is possible in this case that a free leg of the L is mounted in the region of the respective terminal in a groove of the solenoid valve housing.
  • the at least one rubber lip in the closed state of the check valve cooperates with at least one housing section of the solenoid valve. In this case, a free end portion of the rubber lip on the corresponding housing portion abut to prevent undesired backflow of pressure medium, while the corresponding portion of the rubber lip can lift off the housing portion to allow the passage of pressure medium in the permitted direction.
  • the at least one rubber lip and the at least one housing portion in the closed state of the check valve form an angle which is smaller than 90 °.
  • the rubber lip at least in sections has a curvature in the direction of the flow to be prevented.
  • the direction of the sealing force can be optimized or a suitable force component can be generated.
  • the solenoid valve according to the invention can be designed in particular for pneumatic and / or hydraulic applications be . Possible areas of application are, for example, pneumatic clutch and / or gearbox plates.
  • Figure 1 is a symbol diagram illustrating a possible use of a solenoid valve according to the invention.
  • FIG. 2 is a schematic illustration of a practical embodiment of the solenoid valve of FIG. 1.
  • the magnet valve designated overall by 10 in FIG. 1 has a first connection 12, a second connection 14 and a third connection 16.
  • the first port 12 is connected to the second port 14, while the third port 16 is closed.
  • the solenoid valve 10 is brought into a second operating position in which the first port 12 is closed, while the second port 14 is in communication with the third port 16.
  • the solenoid valve 10 serves to to connect a working space 34 optionally with a pressure sink 38 or a pressure wave 40.
  • a muffler 36 is provided, which exerts a throttle effect.
  • a pressure reduction in one or more other working spaces, not shown, via the line 46 can therefore lead to an increase in pressure in the region of the first connection 12.
  • the non-return valve 18 integrated in the solenoid valve 10 according to the invention prevents a pressure increase in the region of the line 46 or the first port 12 from undesirably occurring in the working space 34.
  • FIG. 2 shows a schematic representation of a practical embodiment of the solenoid valve 10 according to the invention of Figure 1.
  • the connections of the solenoid valve 10 are indicated in accordance with the illustration of Figure 2 by dashed lines.
  • an anchor not shown in Figure 2 which cooperates with springs, channels and sealing seats, also not shown, occupy two different working positions.
  • the first port 12 In the non-energized rest position, the first port 12 is connected to the second port 14, while the third port 16 is closed.
  • the solenoid valve 10 In the energized working position of the solenoid valve 10, the first port 12 is closed, while the second port 14 is in communication with the third port 16, as has already been explained with reference to FIG.
  • the solenoid valve 10 is intended to be used in a block of material which forms the respective connection lines.
  • block material O-rings in um- running grooves 28, 30 and 32 of the solenoid valve housing can be used.
  • the check valve 18 includes a substantially L-shaped rubber lip 20, wherein the short free leg of the L is supported in the solenoid valve housing.
  • the long free leg of the L-shaped rubber lip 20 cooperates with a housing portion 22 in the closed state of the check valve 18 shown in FIG.
  • the housing portion 22 is slightly bevelled, and the long leg of the L-shaped rubber lip 20 has a (slight) curvature 26, so that there is an angle 24 between the rubber lip 20 and the housing portion 22, which is smaller than 90 °.

Landscapes

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

Abstract

L'invention concerne une valve magnétique (10) comprenant au moins une première conduite (12) et une deuxième conduite (14) et au moins deux positions de travail. Selon l'invention, au moins une des conduites (12) est équipée d'un clapet de non retour (18) intégré à la valve magnétique (10).
EP06700815A 2005-01-12 2006-01-12 Valve magnétique dotée d'un clapet de non retour intégré Withdrawn EP1838983A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200510001591 DE102005001591B4 (de) 2005-01-12 2005-01-12 Magnetventil
PCT/EP2006/000204 WO2006074920A1 (fr) 2005-01-12 2006-01-12 Valve magnétique dotée d'un clapet de non retour intégré

Publications (1)

Publication Number Publication Date
EP1838983A1 true EP1838983A1 (fr) 2007-10-03

Family

ID=36002670

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06700815A Withdrawn EP1838983A1 (fr) 2005-01-12 2006-01-12 Valve magnétique dotée d'un clapet de non retour intégré

Country Status (3)

Country Link
EP (1) EP1838983A1 (fr)
DE (1) DE102005001591B4 (fr)
WO (1) WO2006074920A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017009016A1 (de) 2017-09-26 2019-03-28 Wabco Gmbh Ventil und pneumatische Bremsanlage

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2606032A (en) * 1944-03-13 1952-08-05 Charles F Warren Jr Check valve assembly
US2621889A (en) * 1947-05-23 1952-12-16 Grove Regulator Company Expansible sleeve type valve
DE1165955B (de) * 1962-09-08 1964-03-19 Erich Herion Mehrwegeventil, insbesondere Magnetventil
US3646956A (en) * 1970-03-18 1972-03-07 Adair Rogers Radial flow check valve
IT8553613V0 (it) * 1985-07-19 1985-07-19 Magneti Marelli Spa Gruppo elettropneumatico di controllo per impianti di frenatura anti slittamento per autoveicoli
IT1187903B (it) * 1986-02-11 1987-12-23 Weber Spa Valvola a comando elettromagnetico a tre vie per un circuito idraulico
WO1992016400A1 (fr) * 1991-03-13 1992-10-01 Allied-Signal Inc. Procede et appareil de commande du niveau de pression dans un systeme de freinage adaptatif a air comprime

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2006074920A1 *

Also Published As

Publication number Publication date
DE102005001591B4 (de) 2009-11-26
DE102005001591A1 (de) 2006-07-20
WO2006074920A1 (fr) 2006-07-20

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