WO2002025154A1 - Dispositif soupape a actionnement electromagnetique et ensemble de dispositifs soupapes - Google Patents

Dispositif soupape a actionnement electromagnetique et ensemble de dispositifs soupapes Download PDF

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Publication number
WO2002025154A1
WO2002025154A1 PCT/EP2001/010706 EP0110706W WO0225154A1 WO 2002025154 A1 WO2002025154 A1 WO 2002025154A1 EP 0110706 W EP0110706 W EP 0110706W WO 0225154 A1 WO0225154 A1 WO 0225154A1
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WO
WIPO (PCT)
Prior art keywords
valve
pilot
chamber
valve device
insert
Prior art date
Application number
PCT/EP2001/010706
Other languages
German (de)
English (en)
Inventor
Werner Stumpe
Original Assignee
Knorr-Bremse Systeme für Nutzfahrzeuge 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 für Nutzfahrzeuge GmbH filed Critical Knorr-Bremse Systeme für Nutzfahrzeuge GmbH
Priority to AU2002213924A priority Critical patent/AU2002213924A1/en
Publication of WO2002025154A1 publication Critical patent/WO2002025154A1/fr

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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
    • F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
    • F16K31/36—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor
    • F16K31/40—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor with electrically-actuated member in the discharge of the motor
    • F16K31/402—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor with electrically-actuated member in the discharge of the motor acting on a diaphragm
    • F16K31/404—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor with electrically-actuated member in the discharge of the motor acting on a diaphragm the discharge being effected through the diaphragm and being blockable by an electrically-actuated member making contact with the diaphragm
    • 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
    • F16K27/003—Housing formed from a plurality of the same valve elements

Definitions

  • the invention relates to an electromagnetically actuated valve device, in particular with the features from the preamble of claim 1; also a combined valve device.
  • An electromagnetically actuated valve device to ensure different functions is known from EP 0 305 710 A2.
  • the combination of such valve devices - a first electromagnetically actuated valve device and a second electromagnetically actuated valve device - to form a combined valve device can also be found in this document. In this case, both are integrated in a shared housing.
  • the first electromagnetically actuated valve device serves to control the connection between a pressure medium source and a consumer or a consumer system, i.e. a plurality of consumers, while the second valve device is used to control the pressure relief of the consumer or the consumer system.
  • Both valve devices of the combined valve device are preferably constructed identically in order to achieve a high degree of standardization with regard to the design of the individual elements.
  • the first valve device has an inlet chamber which can be connected to the pressure medium source via a corresponding connection and a working chamber which can be connected to a consumer or a consumer system, a main valve being arranged between the two chambers.
  • This consists of a movable main valve element and a valve seat fixed to the housing.
  • a pilot chamber and a compensation chamber are also provided in addition to the inlet chamber and the working chamber.
  • To control the movement of the main valve member is a
  • the actuator is designed such that it is on a the first surface assigned to the inlet chamber is acted upon by the inlet pressure in the opening direction of the main valve, while the pressure in the pilot chamber is applied to a second surface of the actuator assigned to the pilot chamber in the closing direction of the main valve.
  • the second area is larger than the first area.
  • Pilot chamber can be connected to the working chamber via a pilot valve.
  • the pilot valve is formed by a movable pilot valve member and a pilot valve body connected to the armature of the actuating magnet.
  • the main valve member and the pilot valve member are firmly coupled such that movement of the
  • Main valve member in the opening direction of the main valve is at the same time a movement of the pilot valve member in the closing direction of the pilot valve.
  • the pilot chamber is connected to the inlet chamber via a throttle connection.
  • the throttle connection is dimensioned such that, with a small opening cross section of the pilot valve, the pressure medium throughput into the pilot chamber is at least as great as the pilot valve from the pilot chamber and, with an increasing opening cross section of the pilot valve, a lower pressure medium throughput into the pilot chamber than the pilot valve from.
  • the second valve device which is preferably constructed analogously to the first valve device with regard to the actuator, the actuating device and the functioning of the main and pilot valve, has a working chamber connected to the consumer system, which in the combined valve device also represents the outlet chamber of the first valve device and one outlet chamber connected to an outlet, between which a main valve consisting of a valve seat fixed to the housing and a movable main valve member is arranged, the outlet being at least indirectly connected to a pressure relief chamber. Furthermore, in analogy to the first valve device, the movement of the
  • Main valve controlling actuator and a pilot chamber intended.
  • the actuator is acted upon by the consumer pressure on a first surface assigned to the working chamber in the opening direction of the main valve.
  • the actuator in the closing direction of the main valve is acted upon by the pressure in the pilot chamber on a second surface assigned to the pilot chamber.
  • the area is also larger than the first area.
  • the pilot chamber can be connected to the outlet chamber via a pilot valve.
  • the pilot valve is formed by a movable pilot valve member and a pilot valve body connected to the armature of the actuating magnet.
  • the main valve member and pilot valve member are so firmly coupled that a movement of the main valve member in the opening direction of the main valve is at the same time a movement of the pilot valve member in the closing direction of the pilot valve.
  • the pilot chamber is connected via a further throttle connection to the outlet i.e. in this case the
  • valve devices disclosed in this document are structurally very complex and assembly-intensive. These include an actuator with valve and switching piston at the ends. The thinner part of the actuator
  • Actuator is guided through a partition.
  • the individual parts are riveted together to ensure power transmission.
  • the construction of the actuating device increases the space required for the individual valve device. Furthermore, it is not possible to check the valve seats without destroying the individual valve devices or the combined valve device. The replacement of the elastic valve seat part of the main valve also requires a lot of effort. In the case of repairs or maintenance, damage to other parts that were not originally affected cannot be ruled out.
  • the invention is therefore based on the object of providing a valve device and in particular a combined valve device for controlling the connection between a pressure medium source and a consumer system and for controlling the pressure relief of the consumer system, which is easy to install and maintain or repair.
  • the required construction volume is to be reduced with constant or increased fluid throughput, in particular air throughput.
  • Another aspect is the simple manufacture of the individual elements of the individual valve devices and in particular the combined valve device.
  • the requirements for ease of repair include a possible verifiability of the quality of valve pairs, so that if the results are good, further use of the valve pairs already in operation should be possible. If a replacement is required, then only the defective parts should be replaced, while the undamaged individual elements remain in use.
  • the electromagnetically actuated valve device comprises an electromagnetic actuating device, a main valve member, which is arranged between an inlet chamber and an outlet chamber, has a main valve member and a stationary valve seat, and furthermore a pilot control chamber which communicates with the valve via a pilot valve
  • the pilot valve comprises a valve member and a valve body which is connected to an armature of the electromagnetic actuation device which is coupled to an actuation magnet.
  • the main valve member and the pilot valve member are coupled to one another such that a movement of the main valve member in the opening direction of the main valve also a movement of the
  • pilot valve member in the closing direction of the pilot valve.
  • the main valve member and the pilot valve member are combined to form a structural unit, which is also referred to as a closing body.
  • the fixed seat for the main valve member is formed by an at least two-part insert which can be arranged in the housing of the electromagnetically actuated valve device.
  • the closing body forms the pilot chamber by means of corresponding sealing devices with the insert and possibly the housing, the pilot chamber being arranged in such a way that the pressure in it acts on the main valve member on the end face directed away from the inlet chamber.
  • the coupling between the inlet chamber and the pilot valve takes place via at least one axial channel.
  • the connection between the pilot valve and the outlet chamber takes place via at least one connecting channel arranged in the housing or the insert.
  • Valve device created which is also very easy to maintain and repair, damage to adjacent components is not necessarily expected when dismantling. Since the valve pairs are formed on different elements, the defective components are replaced independently of the others
  • Valve device is suitable for the implementation of various tasks. This is according to the arrangement in pneumatic circuits or the assignment to individual elements of such a circuit either as a 1) control valve for controlling the connection between one
  • Pressure medium source and a consumer system not shown, or as a 2) pressure relief valve for controlling the pressure relief of a
  • the inlet chamber can be coupled to a pressure medium source, while the outlet chamber acts as a working chamber and is coupled to a consumer.
  • the inlet chamber is formed by the working chamber, which is coupled to a consumer, while the outlet can be connected to a relief chamber.
  • valve device designed according to the invention to any conventional valve device such that either the task mentioned under 1 or the task mentioned under 2 of the
  • Valve device is taken over.
  • both valve devices are combined in a combined valve device to fulfill the two aforementioned tasks.
  • the structure and design of the valve device are combined in a combined valve device to fulfill the two aforementioned tasks.
  • the outflow of the first valve device and the inflow to the second valve device are formed by a common connection to the consumer, that is to say one connection is shared.
  • This combined valve device serves on the one hand to control the connection between the inlet from the pressure medium source
  • valve devices Consumer and further control of the pressure relief in the working chamber coupled to the consumer.
  • Both valve devices are constructed identically with regard to the actuating device and the closing body.
  • the inserts in the common housing since the boundary between the two valve devices is not formed by the housing wall but by the insert or one of the inserts.
  • the inserts are preferably designed in several parts for each valve device in order to enable simple assembly and disassembly of the individual elements of the valve device, in particular of the closing body.
  • Closing body itself is designed as a piston element which, to form the main valve, has a piston-like widened end region which is acted upon by the pressure in the inlet chamber or by the pressure in the working chamber, depending on the type of valve device, on its end face - first valve device or second valve device.
  • connection between the inlet chamber and the pilot valve takes place via a channel extending in the axial direction through the closing body.
  • This thus serves to form a constant throttle in the entry area into the axial channel on the closing body and, through the corresponding actuation of the pilot valve body, which is coupled to an armature element of the electromagnetic actuating device, to form a controllable throttle which is connected downstream of the constant throttle.
  • Both valve devices - the first valve device and the second valve device - have an electromagnetic actuating device, which is preferably likewise of identical design. This comprises at least one actuating magnet, which is connected to an armature. The armature in turn is at least indirectly, preferably directly connected to the valve body of the pilot valve device.
  • both valve devices with an identical actuating device are preferably used, so that the positions required to implement the functioning of the combined valve device are realized either by energizing or not energizing a single armature element. Exploiting this Possibility offers the advantage that the degree of standardization for the design of such valve devices for different purposes and use in combination in a combined valve device can be increased considerably. This also has the advantage that in the event of a replacement, particularly in the case of combined valve devices, it is not necessary to pay attention to different actuating devices.
  • the specific design of the individual elements of the individual valve devices can be done differently.
  • at least the configuration of the closing body is preferably symmetrical with respect to an axis.
  • the closing body is designed as a piston element, that is to say as an element with different dimensions when viewed in cross section.
  • the insert is made in several parts, preferably in two parts. The two-part or multi-part design enables easy assembly and disassembly of the individual elements of the valve device and thus interchangeability of defective components.
  • At least one connecting channel is located in the closing body between
  • Inlet chamber and pilot chamber and pilot chamber and pilot valve arranged. Both channels are preferably combined in one channel which is connected to the pilot chamber. This extends from the end face of the main valve member facing the inlet chamber into the end region of the closing body, which is the
  • Valve element of the pilot valve forms.
  • the inserts When designed as a single valve device, that is to say with only one closing body and one actuating device for use between an inlet and an outlet, these are preferred constructed symmetrically. In the simplest case, a two-part version is also chosen here.
  • the first insert element in the feed direction of the feed forms the valve seat of the main valve.
  • To form the pilot chamber there is one between the end face of the closing body directed away from the inlet in the area of the formation of the main valve
  • Sealing device is provided, which abuts this surface and is attached to the insert, either on the first insert element or on the second insert element.
  • This sealing device is preferably designed as an elastic membrane.
  • sealing devices are also provided between the main valve seat and the surfaces on the main valve member that are operatively connected to them. These can either be arranged on the stationary valve seat or on the closing body. The arrangement is preferably carried out on the closing body.
  • the second insert element in a two-part design of the insert is downstream of the first, viewed in the inflow direction from the inlet, and forms further boundary walls of the pilot chamber via a corresponding seal with the closing body.
  • the second insert element is preferably designed such that, in addition to the support surface on the inner wall of the housing of the valve device, it has a projecting area which extends in the direction of the closing body and serves to support a sealing device, for example in the form of an O-ring.
  • the closing body In the closed position of the valve device, that is to say the closed position of the main valve, the closing body is designed in such a way that it extends in the axial direction beyond the axial extent of the second insert element.
  • connection between the pilot valve and the outlet takes place via corresponding through openings in the housing or on the insert, preferably the first and the second insert element outside the region of the pilot chamber.
  • the inserts When implemented as a combined valve device, that is to say combining the two valve devices and assigning them to the three connections mentioned above, the inserts are designed in such a way that the highest possible degree of standardization is achieved, that is, the proportion of elements with an identical structure is as high as possible is.
  • the connection between the first pilot valve and the outlet, that is to say the working chamber, which is coupled to the consumer is realized via a through opening which is arranged between the insert for the second valve device and the insert for the first valve device.
  • the insert elements are arranged such that they are supported against each other.
  • the embodiment with a combined valve device is particularly advantageous, in which the membrane used to form the pilot chamber extends over both valve devices and is thus arranged, for example clamped, between the first and the second insert element of the inserts for the first and second valve devices.
  • the membrane used to form the pilot chamber extends over both valve devices and is thus arranged, for example clamped, between the first and the second insert element of the inserts for the first and second valve devices.
  • Pilot valve device with the relief chamber at least one corresponding opening in the sealing device is provided, for example in the form of through openings.
  • valve devices designed according to the invention When two valve devices designed according to the invention are formed or combined to form a combined one Valve device with three connections, this can be supplemented in a further aspect of the invention by additional components in order to perform additional functions. It is conceivable, for example, to integrate devices for detecting a state variable, in particular the pressure in the working chamber towards the consumer. This is usually in the form of a pressure sensor.
  • the advantage is that by coupling with the appropriate electronics, in particular connection or inclusion in a control device, regulation of this state variable, in particular of the pressure, is possible.
  • a further development is to integrate an electronic control device in the combined valve device in addition to the pressure sensor.
  • This integration enables the creation of a compact, easy to install and repair-friendly pressure control module, which can be offered as a fully tradable unit.
  • FIG. 1 illustrates, using a sectional illustration, an embodiment of valve devices designed according to the invention in a combined valve device
  • Figure 2 illustrates an embodiment according to Figure 1 with means for detecting a state variable in the working chamber
  • FIG 3 illustrates an embodiment according to Figure 1 with the integration of an electronic control unit.
  • FIG. 1 illustrates an advantageous embodiment of a combined one on the basis of a sectional illustration in the form of an axial section
  • Valve device 1 This comprises two valve devices, a first Valve device 2 and a second valve device 3, the first valve device 2 in the combined valve device 1 acting as an inlet valve and the second valve device -3 as an outlet valve, for controlling the connection between a pressure medium source, not shown, and a consumer, also not shown
  • valve devices - first valve device 2 and second valve device 3 - can be actuated electromagnetically
  • the first valve device 2 that is to say the inlet valve device and the second valve device 3, that is to say the outflow valve device, each comprise means 4.1 and 4.2 for electromagnetic actuation.
  • the means 4.1 and 4.2 for the electromagnetic actuation of the first valve device 2 and the second valve device 3 each have an actuating magnet 5.1 for the means 4.1 for electromagnetic actuation and 5.2 for the means 4.2 for electromagnetic actuation and an armature 6.1 and 6.2.
  • Each valve device - first valve device 2 and second valve device 3 - comprises a pilot valve, which is designated 8.1 for the first valve device 2 and 8.2 for the second valve device 3, and a main valve 9.1 and 9.2, respectively.
  • Each main valve 9.1 and 9.2 has at least one main valve member 10.1 or 10.2 and a fixed valve seat 11; 1 or 11.2, while each pilot valve 8.1 and 8.2 has a pilot valve member 12.1 or 12.2 and a pilot valve body 7.1 coupled to the armature 6.1 or 6.2 of the actuating magnets 5.1 or 5.2 or 7.2 includes.
  • Main valve members 10.1, 10.2 and the pilot valve members 12.1, 12.2 each Valve device - first valve device 2 and second valve device 3 are combined in a structural unit 13.1 or 13.2, so that a movement of the main valve member 10.1 or 10.2 in the opening direction of the main valve 9.1 or 9.2 also a movement of the pilot valve member 12.1 or
  • the structural units 13.1, 13.2 are each formed by a closing body 14.1, 14.2, which comprises, for example, a piston element 15.1, 15.2 and a shaft 16.1, 16.2 coupled to the piston element 15.1, 15.2, the main valve members 10.1,
  • 10.2 are each formed by the piston elements 15.1, 15.2 and the pilot valve members 12.1, 12.2 from the shaft end.
  • Each valve device - first valve device 2 and second valve device 3 comprises an inlet chamber 17.1 or 17.2 and an outlet chamber 18.1 or 18.2, which can be coupled to corresponding connections.
  • the main valves 9.1 and 9.2 are arranged between the corresponding inlet chambers 17.1 and 17.2 and the outlet chambers 18.1 and 18.2.
  • Ausllift ⁇ 18.1, 18.2 - are with connections - here a first connection 20.1 for the inlet chamber 17.1 and a second connection 21.1 for the outlet chamber 18.1 of the first valve device 2 and a first connection 20.2 for the inlet chamber 17.2 and a second connection 21.2 for the outlet chamber 18.2 second valve device 3 - coupled.
  • the outlet chamber 18.1 of the first valve device 2 and the inlet chamber 17.2 of the second valve device 3 are combined and form a working chamber 19 which can be coupled to the consumer.
  • connection 22 In addition to the merging of the inlet chamber 17.2 of the second valve device 3 and the outlet chamber 18.1 of the first valve device 2 are also with it Connected connections - second connection 21.1 of the first valve device 2 and first connection 20.2 of the second valve device 3 combined to form a connection 22.
  • the first connection 20.1 of the first valve device 2 is formed by an inlet 23 which can be coupled to a pressure medium source.
  • the second connection 21.1 of the first valve device 2 and thus the connection 22 of the combined valve device 1 is formed by a connection to the consumer.
  • the first port 20.2 of the second valve device 3 is also from the port 22 for the purpose of pressure relief
  • connection 21.2 of the second valve device 3 represents a connection 24 to a relief space.
  • the term connection is not only to be understood in such a way that it is already an element of a positive and / or non-positive connection with corresponding lines, the term connection here only serves to reproduce the function, i.e. the provision of the possibility of coupling with a pressure medium source, a consumer e.t.c.
  • the housing 25 of the combined valve device 1 has three connections, the inlet 23, which can be coupled to a pressure medium source, the connection 22 to the consumer, which supplies and supplies
  • Venting is vented and a connection 24 for ventilation, which is also referred to as a connection for coupling to a relief space. It is also conceivable, but not shown in detail here, not to directly connect the second connection 21.1 of the first valve device 2 and the first connection 20.2 of the second valve device 3, but via a module, not shown here, which has a connection block for individual channels represents, and includes as an output the connection to the consumer.
  • a pilot chamber 26.1, 26.2 is assigned to each pilot valve 8.1, 8.2.
  • the pilot chamber 26.1 is connected to the first connection 20.1 of the first valve device 2, that is to say connected to the inlet 23 or the inlet chamber 17.1 coupled thereto, while the pilot chamber 26.2 of the second valve device 3 is connected to the first connection 20.2 of the second valve device 3, which is formed by the connection 22 to the consumer, or the working chamber 19 is coupled.
  • the coupling between the inlet chamber 17.1 of the first valve device 2 and 17.2 of the second valve device 3 and the pilot chamber 26.1 or 26.2 takes place via a connecting channel 27.1 or 27.2 arranged in the closing body 14.1 or 14.2. This connecting channel 27.1 respectively
  • connection channel 27.1 or 27.2 preferably runs parallel to the inlet 23 or connection 22 to the consumer.
  • Connecting channel 28.1 or 28.2 extending unit 13.1 or 13.2.
  • the connecting channel 27.1 or 27.2 and the connecting channel 28.1, 28.2 are preferably combined to form an axial common channel 29.1 or 29.2 which extends through the structural unit 13.1 or 13.2.
  • the coupling to the pilot chamber 26.1 or 26.2 takes place via a channel 30.1 or 30.2, which extends from the pilot chamber 26.2 or 26.2 into the channel 29.1 or 29.2.
  • the pilot chambers 26.1, 26.2 are arranged in such a way that a back pressure to the pressure in the inlet chamber 17.1 at the main valve 9.1 and the working chamber 19 at the main valve 9.2 of the second valve device 3 is generated.
  • this statement also applies to the second valve device 3, here it is the partial area 31.2 which is acted upon by the pressure in the working chamber 19 on the end face 32.2 facing the working chamber 19, while the pressure in the pilot chamber 26.2 on that of the Working chamber 19 facing end face 33.2 acts.
  • the channel 27.1 or 27.2 preferably has a cross-section that is not variable during operation, so that it takes on the function of a constant throttle between the inlet chamber 17.1 and the pilot chamber 26.1 or the working chamber 19 and the pilot chamber 26.2.
  • the pilot valve 8.1 or 8.2 is designed as a controllable throttle device. This is in each case formed by the pilot valve members 12.1 and 12.2, which form the structural unit 13.1 or 13.2 with the main valves 9.1 and 9.2, in particular the main valve member 10.1 or 10.2, and pilot valve bodies 7.1, 7.2, which each with the armatures 6.1, 6.2 of the actuating magnets 5.1 , 5.2 are connected.
  • both actuating magnets 5.1 and 5.2 are shown in the de-energized state, this state being characterized in that the first valve device 2 is closed and thus blocks the inlet 23, while the second valve device 3 is open, so that between the Connection to the consumer 22 and the atmosphere or a relief chamber 24, there is a connection, but here the main valve 9.2 is shown in the closed state.
  • the other states are explained in the functional description below.
  • the individual elements - main valve 9.1, 9.2 and pilot valve device 8.1, 8.2 of the two valve devices 2 and 3 - are each made using an at least two-part insert 34.1, 34.2 clamped in the housing 25 pressure-tight.
  • the individual insert elements of each two-part insert 34.1, 34.2 are each designated 34.11 or 34.12 for the two-part insert 34.1 and 34.21 or 34.22 for the two-part insert 34.2.
  • the inserts 34.1, 34.2 are integrated in the housing 25 and designed and arranged in such a way that they are supported on the inner walls 35 of the housing 25, in particular on the housing inner wall region 35.1 on a housing basic element 36 and a housing inner wall region 35.2, which is separated from one with the
  • the stationary valve seat 11.1 or 11.2 of the respective main valve 9.1 or 9.2 is formed by the two-part insert 34.1, 34.2, in particular the first insert element 34.11 of the first insert 34.1 or 34.21 of the second valve device 3.
  • the first insert element 34.11 of the insert 34.1 of the first valve device 2 which is arranged in the flow direction from the inlet 23 to the connection 22 to the consumer before the second insert element 34.12, has a projection 38 which forms the valve seat 11.1 with at least one partial surface 39.
  • Shape of the piston element 15.1 is designed, with its inlet 23 directed surface 32.1 on the valve seat 11.1 come to rest.
  • the pilot chamber 26.1 is formed between the second insert part element 34.12 and the closing body 14.1.
  • a sealing device 40.1 is provided for this purpose, on the one hand between the first insert part element 34.11 and the second
  • Insert part element 34.12 of the first insert is fixed and, on the other hand, is fastened to the end face 33.1 of the closing body 14.1 facing away from the inlet 23 or the inlet chamber 17.1.
  • the sealing device 40.1 is designed as a membrane and is fastened between the first and second insert part elements 34.11 and 34.12, respectively.
  • the sealing device 40.1 is only fastened to the second insert element 34.12 of the first insert 34.1 and to the end face 33.1 of the closing body 14.1 which faces away from the inlet 23 or the inlet chamber 17.1.
  • a further second sealing device 41.1 is provided to form the pilot chamber 26.1, which is also arranged between the second insert part element 34.12 of the first insert 34.1 and the closing body 14.1.
  • the shape of the second insert element 34.12 is such that it has its support surfaces 42.1 for the sealing device 41.1 with its
  • Inner contour 43.1 forms at least one wall area of the pilot chamber 26.1.
  • the two sealing devices 40.1 and 41.1 are arranged one behind the other in the axial direction.
  • the second controllable throttle device in the form of the pilot valve 8.1 is also closed.
  • the pilot valve 8.1 is connected to the connection 22 to the consumer via a conductive connection. This is in the form of at least one connecting channel 44.1 which is formed in the housing wall or by providing at least one or more channel-like channels
  • the two valve devices - first valve device 2 and second valve device 3 - are combined to form a valve combination in the form of a combined valve device 1.
  • the individual valve devices 2 and 3 are preferably constructed and designed in the same way in accordance with the arrangement and configuration of the individual valves - main valve and pilot valve. Through the combination, however, there is the possibility that either on a separate
  • Insert element can be omitted, or they are designed such that an insert element of a valve device 2 or 3 takes over the function of the partition between the two valve devices 2 and 3, so that the insert element of the other valve device no longer has to be formed in the intermediate area between the two valve devices.
  • Another possibility is to combine the insert elements 34.11 and 34.21 to form a structural unit.
  • a separate partition between the two valve devices can be dispensed with when designing the inserts.
  • FIG. 1 the connection channel between pilot valve 8.1 and outlet chamber 17.2 or working chamber 19 is the second insert element 34.12 of the first
  • Ventiie 2 and 34.22 of the second valve device 3 formed, and through the arrangement of both insert elements to each other.
  • the first insert element 34.21 of the second valve device supports the two insert elements 34.12 and 34.22.
  • the first insert element 34.21 of the second valve device 3 simultaneously forms the support surface for the sealing devices 40.1 and 40.2.
  • valve devices - first valve device 2 in the form of the inlet valve and second valve device 3 in the form of the outlet valve - operate on the same principle, the nozzle-baffle plate principle. Controllable resistors are used to set pressures.
  • the mode of operation is first explained below for the first valve device 2.
  • the first valve device 2 is connected to the supply pressure for the inlet chamber 17.1. Due to the constant throttle in the form of the connecting channel 27.1 in the closing body 14.1, this supply pressure prevails, that is to say the pressure in the inlet chamber 17.1 also in the
  • Pilot chamber 26.1 since the controllable throttle device in the form of the pilot valve 8.1 is closed when the actuating magnet 5.1 is de-energized. Since the prevailing pressure in the chamber leading to the consumer, ie working chamber 19, is in this case less than or at most equal to the pressure in the inlet chamber 17.1, the main valve 9.1 also remains when the pilot valve 8.1 is closed closed. To increase the pressure in the chamber leading to the consumer, that is to say the working chamber 19, the actuating magnet 5.2 of the second valve device 3 is energized. This leads to the closing of the pilot valve 8.2 of the second valve device 3. If the actuating magnet 5.1 of the first valve device 2 is now energized, the controllable throttle device in the form of the pilot valve device 8.1 opens on the first closing body 14.1. The fluid from the pilot chamber 26.1 flows via the pilot valve 8.1 to the working chamber 19. Via the throttle device designed as a constant throttle in the form of the connecting channel 27.1 in the closing body
  • the actuating magnet 5.1 of the first valve device 2 is de-energized in good time and the pilot valve 8.1 is thereby completely closed in good time, which finally leads to the closing of the main valve 9.1 of the first valve device 2 with the increase in pressure in the pilot chamber 26.1, so that when the
  • the pressure in the inlet 22 to the consumer is reduced in a similar manner with the second valve device 3, in particular the actuation of the actuating magnet 5.2.
  • the actuating magnet 5.1 of the first valve device 2 remains de-energized during this phase.
  • Lowering the current supply on the actuating magnet 5.2 of the second valve device opens the pilot valve 8.2, in particular the controllable throttle, and reduces the pressure from the pilot chamber 26.2 of the second valve device 3.
  • the main valve 9.2 opens and releases fluid from the consumer to the atmosphere.
  • This enables a sensitive adjustment in the border areas.
  • FIG. 2 there is the possibility of expanding the valve combination 1 shown in FIG. 1 by a device 47 for detecting the pressure in the working chamber 19. This offers the possibility of offering a valve combination 1 with pressure detection device 47 as an independently tradable structural unit 48, which can be easily integrated into control or regulating devices.
  • an electronic control device 49 is integrated into the combined valve device 1.
  • FIG. 3 there is the possibility of creating a pressure control module.
  • Pilot chamber 28.1, 28.2 connecting channel between pilot chamber and
  • Pilot valve 29.1, 29.2 • Community channel 30.1, 30.2, channel 31.1, 31.2, partial area 32.1, towards the inlet chamber 23, the end face on the closing body

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Fluid-Driven Valves (AREA)

Abstract

Dispositif soupape à actionnement électromagnétique, qui possède un boîtier, un dispositif d'actionnement, une soupape principale et une chambre pilote reliée par l'intermédiaire d'une soupape pilote avec la chambre de sortie et par l'intermédiaire d'au moins un canal de liaison avec la chambre d'admission. L'obturateur principal et l'obturateur de soupape pilote sont réunis en une seule unité structurale. Selon la présente invention, le siège fixe de la soupape principale est formé d'un insert en deux parties au moins pouvant être encastré dans le boîtier du dispositif soupape. La chambre pilote est associée à l'obturateur principal de manière telle que ledit obturateur est soumis, au moins sur une zone partielle de ses parois opposées, vu dans le sens d'écoulement du fluide sous pression, respectivement à la pression régnant dans la chambre d'admission et à la pression régnant dans la chambre pilote. La chambre pilote est reliée à la chambre d'admission et à la soupape pilote par l'intermédiaire d'au moins un canal de liaison qui s'étend dans l'unité structurale. La liaison entre soupape pilote et chambre de sortie se fait par l'intermédiaire d'au moins un canal de liaison situé à l'extérieur de l'unité structurale, dans le boîtier ou dans l'insert.
PCT/EP2001/010706 2000-09-22 2001-09-17 Dispositif soupape a actionnement electromagnetique et ensemble de dispositifs soupapes WO2002025154A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2002213924A AU2002213924A1 (en) 2000-09-22 2001-09-17 Electromagnetically actuated valve unit and a valve assembly

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2000146978 DE10046978C2 (de) 2000-09-22 2000-09-22 Elektromagnetisch betätigbare Ventileinrichtung und Ventilvorrichtung
DE10046978.7 2000-09-22

Publications (1)

Publication Number Publication Date
WO2002025154A1 true WO2002025154A1 (fr) 2002-03-28

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ID=7657219

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2001/010706 WO2002025154A1 (fr) 2000-09-22 2001-09-17 Dispositif soupape a actionnement electromagnetique et ensemble de dispositifs soupapes

Country Status (3)

Country Link
AU (1) AU2002213924A1 (fr)
DE (1) DE10046978C2 (fr)
WO (1) WO2002025154A1 (fr)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2738157A (en) * 1952-09-25 1956-03-13 Jackes Evans Mfg Company Amplifying member for pilot operated valves
DE2312883A1 (de) * 1973-03-15 1974-09-26 Melnikowa Ventil
US4450863A (en) * 1981-05-13 1984-05-29 Eaton Corporation Series connected solenoid appliance control valve assembly
US4617961A (en) * 1983-12-17 1986-10-21 Wabco Westinghouse Fahrzeugbremsen Gmbh Pilot-operated solenoid valve apparatus
EP0305710A2 (fr) * 1987-09-02 1989-03-08 WABCO Vermögensverwaltungs-GmbH Dispositif de soupape actionné électromagnétiquement
WO1990001651A1 (fr) * 1988-08-15 1990-02-22 Kabushiki Kaisha Kambayashi Seisakusho Soupape a solenoide
WO2000049321A1 (fr) * 1999-02-19 2000-08-24 Automatic Switch Company Vanne proportionnelle a plage de fonctionnement etendue

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2989666A (en) * 1958-09-30 1961-06-20 Robert Mednick Selective control valve
IT986479B (it) * 1973-06-18 1975-01-30 Marocco A Perfezionamenti nelle elettroval vole differenziali per il control lo di fluidi
US4623118A (en) * 1982-08-05 1986-11-18 Deere & Company Proportional control valve
DE4005608A1 (de) * 1990-02-22 1991-09-05 Bosch Gmbh Robert Drucksteuerventilaggregat, insbesondere fuer druckluftbetaetigte fahrzeugbremsanlagen
JPH07151261A (ja) * 1993-11-26 1995-06-13 Aisin Seiki Co Ltd 電磁比例式圧力制御弁

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2738157A (en) * 1952-09-25 1956-03-13 Jackes Evans Mfg Company Amplifying member for pilot operated valves
DE2312883A1 (de) * 1973-03-15 1974-09-26 Melnikowa Ventil
US4450863A (en) * 1981-05-13 1984-05-29 Eaton Corporation Series connected solenoid appliance control valve assembly
US4617961A (en) * 1983-12-17 1986-10-21 Wabco Westinghouse Fahrzeugbremsen Gmbh Pilot-operated solenoid valve apparatus
EP0305710A2 (fr) * 1987-09-02 1989-03-08 WABCO Vermögensverwaltungs-GmbH Dispositif de soupape actionné électromagnétiquement
WO1990001651A1 (fr) * 1988-08-15 1990-02-22 Kabushiki Kaisha Kambayashi Seisakusho Soupape a solenoide
WO2000049321A1 (fr) * 1999-02-19 2000-08-24 Automatic Switch Company Vanne proportionnelle a plage de fonctionnement etendue

Also Published As

Publication number Publication date
AU2002213924A1 (en) 2002-04-02
DE10046978C2 (de) 2003-03-06
DE10046978A1 (de) 2002-05-02

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