WO2018210640A1 - Arrangement comprising at least one valve - Google Patents

Arrangement comprising at least one valve Download PDF

Info

Publication number
WO2018210640A1
WO2018210640A1 PCT/EP2018/061894 EP2018061894W WO2018210640A1 WO 2018210640 A1 WO2018210640 A1 WO 2018210640A1 EP 2018061894 W EP2018061894 W EP 2018061894W WO 2018210640 A1 WO2018210640 A1 WO 2018210640A1
Authority
WO
WIPO (PCT)
Prior art keywords
valve
sensor
housing
arrangement according
attached
Prior art date
Application number
PCT/EP2018/061894
Other languages
German (de)
French (fr)
Inventor
Stefan Schmidt
Original Assignee
Robert Bosch 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 Robert Bosch Gmbh filed Critical Robert Bosch Gmbh
Publication of WO2018210640A1 publication Critical patent/WO2018210640A1/en

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K37/00Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
    • F16K37/0025Electrical or magnetic means
    • F16K37/005Electrical or magnetic means for measuring fluid parameters
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B13/00Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • F15B13/04Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
    • F15B13/0401Valve members; Fluid interconnections therefor
    • F15B13/0405Valve members; Fluid interconnections therefor for seat valves, i.e. poppet valves
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B13/00Details of servomotor systems ; Valves for servomotor systems
    • F15B13/02Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
    • F15B13/04Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
    • F15B13/042Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by fluid pressure
    • F15B13/043Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by fluid pressure with electrically-controlled pilot valves
    • F15B13/0435Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by fluid pressure with electrically-controlled pilot valves the pilot valves being sliding valves
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B21/00Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
    • F15B21/04Special measures taken in connection with the properties of the fluid
    • F15B21/047Preventing foaming, churning or cavitation
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00Actuating devices; Operating means; Releasing devices
    • F16K31/12Actuating devices; Operating means; Releasing devices actuated by fluid
    • F16K31/42Actuating devices; Operating means; Releasing devices actuated by fluid by means of electrically-actuated members in the supply or discharge conduits of the fluid motor
    • F16K31/423Actuating devices; Operating means; Releasing devices actuated by fluid by means of electrically-actuated members in the supply or discharge conduits of the fluid motor the actuated members consisting of multiple way valves
    • F16K31/426Actuating devices; Operating means; Releasing devices actuated by fluid by means of electrically-actuated members in the supply or discharge conduits of the fluid motor the actuated members consisting of multiple way valves the actuated valves being cylindrical sliding valves
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00Circuits for servomotor systems
    • F15B2211/60Circuit components or control therefor
    • F15B2211/63Electronic controllers
    • F15B2211/6303Electronic controllers using input signals
    • F15B2211/634Electronic controllers using input signals representing a state of a valve
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00Circuits for servomotor systems
    • F15B2211/80Other types of control related to particular problems or conditions
    • F15B2211/86Control during or prevention of abnormal conditions
    • F15B2211/8609Control during or prevention of abnormal conditions the abnormal condition being cavitation
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00Circuits for servomotor systems
    • F15B2211/80Other types of control related to particular problems or conditions
    • F15B2211/86Control during or prevention of abnormal conditions
    • F15B2211/8616Control during or prevention of abnormal conditions the abnormal condition being noise or vibration

Definitions

  • the invention is based on an arrangement according to the preamble of
  • cavitation is a local evaporation of air or a separation of dissolved air within the liquid. Cavitation can cause mechanical damage and too high
  • Liquid jet generated which can act on a component. This is thus damaged for a long time by a variety of occurring liquid jets. This allows the surface to be roughened and even hole formed. That leads to a
  • Cavitation depends, for example, on a pressure and a temperature of the fluid, on a flow-through geometry, on flow conditions in a tank and on a proportion of water in the fluid.
  • the document EP 0 462 632 B1 discloses a sensor for measuring cavitation, which is arranged in the valve interior of a valve housing in a flow path adjacent to a movable valve body.
  • the sensor is for example as a
  • Acceleration sensor or designed as an acoustic vibrating blade has the object to provide an arrangement in which device technology is simple and inexpensive cavitation detected and / or reduced and / or can be avoided. This object is achieved by an arrangement according to the features of
  • an arrangement with a valve is provided, and with at least one arithmetic unit and with at least one sensor which is connected to the arithmetic unit and in particular detects a cavitation and / or an impermissible vibration.
  • the valve may have a housing to which the sensor, in particular outside, is attached.
  • an attachment may be provided on the valve and the sensor or a further sensor, in particular outside, be attached to the attachment.
  • the sensor may in particular an acceleration or a
  • This solution has the advantage that it can be detected by the sensor on device-technically simple manner occurring at the valve or a mounting hole of the valve cavitation. Alternatively or additionally, an impermissible vibration,
  • the senor can be easily retrofitted into existing arrangements. By detecting overloading of the valve, for example by the maximum flow and / or mechanical vibration, and the initiation of consequent countermeasures, a life of the valve can be increased.
  • the valve can be configured as a hydraulic switching or continuous valve.
  • the valve is a directional control valve, in particular a 2/2-way valve or a 2/2-way cartridge valve. This can with advantage one
  • Control cover easy to assemble.
  • the attachment which may include the valve may, for example, a
  • Actuating magnet which is provided for actuating the valve body of the valve or a pilot valve.
  • the actuating magnet may in this case have a housing.
  • Actuating magnet and / or be attached to the housing of the actuating magnet are configured to be attached to the housing of the actuating magnet.
  • an electronics can be provided as an attachment. This may preferably have the arithmetic unit.
  • the sensor and / or the further sensor may be attached to the electronics and / or to a housing of the electronics.
  • the electronics can be used to control the valve and / or the actuating magnet.
  • a displacement sensor for example in the case of a return spring, is provided as an attachment, with which the displacement path of a valve body, for example a valve slide of the valve, can be detected.
  • the sensor and / or the further sensor can be fastened on the outside of the displacement sensor or on a housing of the displacement sensor.
  • the arrangement on the attachment has the advantage that the sensor and / or the further sensor
  • valve technology is easy to install in the arrangement is / are and / or can be easily retrofitted / can. It is possible that the valve has several attachments. It is also possible that a plurality of sensors are provided, which are provided on different attachments and / or the housing of the valve.
  • valve may have a pilot valve.
  • Pilot valve may hydraulically boost a control signal for the valve.
  • the sensor and / or the further sensor are attached to the pilot valve or to a housing of the pilot valve.
  • the sensor and / or the further sensor may preferably be a knock sensor. Knock sensors are very inexpensive. However, it is also possible to provide other sound or vibration sensors as sensors with which a sound and / or an oscillation can be measured, which suggests cavitation. Alternatively it is conceivable that the sensor and / or the further sensor as an air sensor, such as a microphone, are designed.
  • An evaluation of the data detected by the sensor can advantageously take place in the arithmetic unit of the valve. It is also possible that an evaluation is carried out by an external computing unit. In addition, storage of the data can advantageously take place.
  • the arithmetic unit to a data storage. In the data memory, the data may preferably be logged and / or stored. This makes it possible to additionally or alternatively evaluate the data acquired by the sensor later. If certain preset limit values are exceeded, the arithmetic unit may issue a warning, for example by an alarm signal in a user interface.
  • cavitation-avoiding measures can be introduced by the arithmetic unit as soon as a cavitation is detected by the sensor.
  • a cavitation for example, a
  • the transmission of the data from the sensor to the arithmetic unit and / or to the data memory can advantageously take place via a bus or a system of buses.
  • the bus is a field bus.
  • Figure 1 in a longitudinal section of a 2/2-way cartridge valve a possible position of a sensor
  • FIG. 1 shows a valve 1, which is designed as a 2/2-way cartridge valve.
  • the valve 1 has a piston 2, which is arranged in a two-part bushing 4.
  • the bush 4 is inserted in a stepped receiving bore 5 of a hydraulic block 7.
  • the piston 2 is associated with a valve seat.
  • a control cover 6 closes off the receiving bore of the valve cartridge.
  • a pilot valve 8 is provided in the control cover.
  • a preferred position A for a sensor 10, for measuring a sound, for the detection of cavitation, is formed on the outside of the control cover 6.
  • FIG. 2 shows a valve 20, which as a 4/3 proportional directional valve with
  • the valve 20 has a main valve 22 and a pilot valve 24.
  • the main valve 22 has a housing 26, a
  • the pilot valve 24 has a valve housing 34 in which a spool 35 is slidably mounted. Furthermore, the pilot valve 24 has a
  • Auxiliary operating device 36 which is provided on the valve housing 34 and through which the pilot valve 24 is actuated.
  • two magnets 38 and 40 are provided in the auxiliary operating device 36. These are each provided in a housing part 42a and 42b of the valve housing 34, wherein a respective housing part 42a and 42b the front side of the valve housing 34 of the pilot valve 24 connects.
  • a first preferred position A for the sensor 44 is external to the housing 26 of the main valve 22. It is possible, for example, for the sensor 44 to be secured between the housing 26 of the main valve 22 and the housing 34 of the pilot valve 24.
  • Another preferred position B for the sensor 46 is located on the housing 32 of the attachment with the return spring 30. Thus, the sensor 46, for example, outside of a lateral surface of the housing 32 can be mounted.
  • Another preferred position C for a sensor 48 is provided on the outside of the housing 34 of the pilot valve 24. The sensor 48 can be mounted on the housing 34 in the region of the control slide 35. Further preferred positions D and E for the sensors 50 and 52 are on the
  • Part housing 42b of the auxiliary actuator 36 is provided.
  • the position D is located For example, outside a control electronics and the position E is provided outside of the magnet 38.
  • A, B, C, D, E position of a sensor A, B, C, D, E position of a sensor.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Indication Of The Valve Opening Or Closing Status (AREA)

Abstract

The invention relates to an arrangement which comprises a valve (1) and a sensor (10) that detects sound and/or vibration, said sensor being fastened to the exterior of a part of the housing (6) of the valve.

Description

ANORDNUNG MIT ZUMINDEST EINEM VENTIL  ARRANGEMENT WITH AT LEAST ONE VALVE
Beschreibung Die Erfindung geht aus von einer Anordnung gemäß dem Oberbegriff des The invention is based on an arrangement according to the preamble of
Patentanspruchs 1.  Patent claim 1.
Sinkt ein Druck in der Flüssigkeit unterhalb eines Dampfdrucks der Flüssigkeit, so bilden sich Gasblasen in der Flüssigkeit aus, die in Bereichen höherer Drücke When a pressure in the liquid falls below a vapor pressure of the liquid, gas bubbles are formed in the liquid which are in regions of higher pressures
implosionsartig kondensieren. Dieser Vorgang wird als Kavitation bezeichnet. Es handelt sich um eine lokale Verdampfung von Luft oder um eine Ausscheidung gelöster Luft innerhalb der Flüssigkeit. Kavitation kann zu mechanischen Schäden und zu hohen condense like an implosion. This process is called cavitation. It is a local evaporation of air or a separation of dissolved air within the liquid. Cavitation can cause mechanical damage and too high
Geräuschemissionen führen, da die implosionsartig zusammenfallenden Gasblasen große und stationäre Kräfte freisetzen können. Bei einer Implosion der Gasblasen wird ein Noise emissions lead because the implosion-like collapse gas bubbles can release large and steady forces. In an implosion of the gas bubbles is a
Flüssigkeitsstrahl erzeugt, der auf ein Bauteil einwirken kann. Dieses wird somit über längere Zeit durch eine Vielzahl auftretender Flüssigkeitsstrahle beschädigt. Dadurch kann die Oberfläche aufgeraut werden und sogar Lochbildung eintreten. Das führt zu einer Liquid jet generated, which can act on a component. This is thus damaged for a long time by a variety of occurring liquid jets. This allows the surface to be roughened and even hole formed. That leads to a
Materialschwächung, woraus ein Versagen des Bauteils, beispielsweise durch Brechen, resultiert. Kavitation ist beispielsweise abhängig von einem Druck und einer Temperatur des Fluids, von einer durchströmten Geometrie, von Strömungsverhältnissen in einem Tank und von einem Wasseranteil im Fluid. Material weakening, resulting in a failure of the component, for example, by breaking results. Cavitation depends, for example, on a pressure and a temperature of the fluid, on a flow-through geometry, on flow conditions in a tank and on a proportion of water in the fluid.
Das Dokument EP 0 462 632 Bl offenbart einen Sensor zur Messung von Kavitation, der im Ventilinneren eines Ventilgehäuses in einem Strömungspfad benachbart zu einem beweglichen Ventilkörper angeordnet ist. Der Sensor ist beispielsweise als ein The document EP 0 462 632 B1 discloses a sensor for measuring cavitation, which is arranged in the valve interior of a valve housing in a flow path adjacent to a movable valve body. The sensor is for example as a
Beschleunigungssensor oder als ein akustischer Schwingmesser ausgestaltet. Dem gegenüber liegt der Erfindung die Aufgabe zugrunde eine Anordnung zu schaffen, bei der vorrichtungstechnisch einfach und kostengünstig eine Kavitation erfassbar ist und/oder vermindert und/oder vermieden werden kann. Diese Aufgabe wird gelöst durch eine Anordnung gemäß den Merkmalen desAcceleration sensor or designed as an acoustic vibrating blade. In contrast, the invention has the object to provide an arrangement in which device technology is simple and inexpensive cavitation detected and / or reduced and / or can be avoided. This object is achieved by an arrangement according to the features of
Anspruchs 1. Claim 1.
Besonders vorteilhafte Ausführungen sind Gegenstand der jeweiligen Particularly advantageous embodiments are the subject of the respective
Unteransprüche. Dependent claims.
Erfindungsgemäß ist eine Anordnung mit einem Ventil vorgesehen, und mit zumindest einer Recheneinheit und mit zumindest einem Sensor, der mit der Recheneinheit verbunden ist und der insbesondere eine Kavitation und/oder eine unzulässige Vibration erfasst. Das Ventil kann dabei ein Gehäuse haben, an dem der Sensor, insbesondere außen, befestigt ist. Alternativ oder zusätzlich kann an dem Ventil ein Anbauteil vorgesehen sein und der Sensor oder ein weiterer Sensor, insbesondere außen, an dem Anbauteil befestigt sein. Der Sensor kann insbesondere ein Beschleunigungs- oder ein According to the invention, an arrangement with a valve is provided, and with at least one arithmetic unit and with at least one sensor which is connected to the arithmetic unit and in particular detects a cavitation and / or an impermissible vibration. The valve may have a housing to which the sensor, in particular outside, is attached. Alternatively or additionally, an attachment may be provided on the valve and the sensor or a further sensor, in particular outside, be attached to the attachment. The sensor may in particular an acceleration or a
Körperschallsensor sein. Diese Lösung hat den Vorteil, dass auf vorrichtungstechnisch einfache Weise eine am Ventil oder einer Einbaubohrung des Ventils auftretende Kavitation durch den Sensor erfasst werden kann. Alternativ oder zusätzlich kann eine unzulässige Vibration, Being a structure-borne noise sensor. This solution has the advantage that it can be detected by the sensor on device-technically simple manner occurring at the valve or a mounting hole of the valve cavitation. Alternatively or additionally, an impermissible vibration,
insbesondere an der Ventilelektronik erkannt werden. In Folge können vorteilhafterweise Maßnahmen getroffen werden, um die auftretende Kavitation zu beenden. Durch die vorrichtungstechnisch einfache Montage des Sensors außen am Gehäuse können be recognized in particular on the valve electronics. As a result, measures can advantageously be taken to terminate the cavitation occurring. By the device technology simple installation of the sensor outside the housing can
Montagekosten gespart werden. Zudem ist der Sensor einfach in bestehende Anordnungen nachrüstbar. Durch eine Erkennung einer Überlastung des Ventils, beispielsweise durch den maximalen Durchfluss und/oder mechanische Vibration, und die Einleitung von daraus folgenden Gegenmaßnahmen kann eine Lebensdauer des Ventils erhöht werden.  Assembly costs are saved. In addition, the sensor can be easily retrofitted into existing arrangements. By detecting overloading of the valve, for example by the maximum flow and / or mechanical vibration, and the initiation of consequent countermeasures, a life of the valve can be increased.
Das Ventil kann dabei als ein hydraulisches Schalt- oder Stetigventil ausgestaltet sein. In einer Ausführungsform der Erfindung ist das Ventil ein Wegeventil, insbesondere ein 2/2-Wegeventil oder ein 2/2-Wege- Einbauventil. Dieses kann mit Vorteil einen The valve can be configured as a hydraulic switching or continuous valve. In one embodiment of the invention, the valve is a directional control valve, in particular a 2/2-way valve or a 2/2-way cartridge valve. This can with advantage one
Ventildeckel oder Steuerdeckel aufweisen, an dem der zumindest eine Sensor, insbesondere außen, befestigbar ist. Vorteilhafterweise ist der Sensor auf dem Ventildeckel oder Have valve cover or control cover on which the at least one sensor, in particular outside, can be fastened. Advantageously, the sensor on the valve cover or
Steuerdeckel einfach zu montieren. Control cover easy to assemble.
Das Anbauteil, das das Ventil aufweisen kann, kann beispielsweise ein The attachment, which may include the valve may, for example, a
Betätigungsmagnet sein, der zum Betätigen des Ventilkörpers des Ventils oder eines Vorsteuerventils vorgesehen ist. Der Betätigungsmagnet kann hierbei ein Gehäuse aufweisen. Mit Vorteil können der Sensor und/oder der weitere Sensor am Actuating magnet, which is provided for actuating the valve body of the valve or a pilot valve. The actuating magnet may in this case have a housing. Advantageously, the sensor and / or the further sensor on
Betätigungsmagneten und/oder am Gehäuse des Betätigungsmagneten befestigt sein.  Actuating magnet and / or be attached to the housing of the actuating magnet.
Weiterhin kann eine Elektronik als Anbauteil vorgesehen sein. Diese kann vorzugsweise die Recheneinheit aufweisen. Mit Vorteil können der Sensor und/oder der weitere Sensor an der Elektronik und/oder an einem Gehäuse der Elektronik befestigt sein. Die Elektronik kann zum Steuern des Ventils und/oder des Betätigungsmagneten einsetzbar sein. Es ist denkbar, dass ein Wegsensor, beispielsweise bei einer Rückstellfeder, als Anbauteil vorgesehen ist, mit dem der Verschiebeweg eines Ventilkörpers, beispielsweise eines Ventilschiebers des Ventils, erfassbar ist. Mit Vorteil kann/können der Sensor und/oder der weitere Sensor außen am Wegsensor oder an einem Gehäuse des Wegsensors befestigt sein. Die Anordnung am Anbauteil hat den Vorteil, dass der Sensor und/oder der weitere Sensor Furthermore, an electronics can be provided as an attachment. This may preferably have the arithmetic unit. Advantageously, the sensor and / or the further sensor may be attached to the electronics and / or to a housing of the electronics. The electronics can be used to control the valve and / or the actuating magnet. It is conceivable that a displacement sensor, for example in the case of a return spring, is provided as an attachment, with which the displacement path of a valve body, for example a valve slide of the valve, can be detected. Advantageously, the sensor and / or the further sensor can be fastened on the outside of the displacement sensor or on a housing of the displacement sensor. The arrangement on the attachment has the advantage that the sensor and / or the further sensor
vorrichtungstechnisch einfach bei der Anordnung montierbar ist/sind und/oder leicht nachgerüstet werden kann/können. Es ist möglich, dass das Ventil mehrere Anbauteile aufweist. Es ist weiterhin möglich, dass mehrere Sensoren vorgesehen sind, die an verschiedenen Anbauteilen und/oder dem Gehäuse des Ventils vorgesehen sind. Device technology is easy to install in the arrangement is / are and / or can be easily retrofitted / can. It is possible that the valve has several attachments. It is also possible that a plurality of sensors are provided, which are provided on different attachments and / or the housing of the valve.
Weiter vorzugsweises kann das Ventil ein Vorsteuerventil aufweisen. Das Further preferably, the valve may have a pilot valve. The
Vorsteuerventil kann ein Steuersignal für das Ventil hydraulisch verstärken. Weiter vorteilhaft sind der Sensor und/oder der weitere Sensor am Vorsteuerventil oder an einem Gehäuse des Vorsteuerventils befestigt. Pilot valve may hydraulically boost a control signal for the valve. Further advantageously, the sensor and / or the further sensor are attached to the pilot valve or to a housing of the pilot valve.
Bei dem Sensor und/oder dem weiteren Sensor kann es sich bevorzugt um einen Klopfsensor handeln. Klopfsensoren sind sehr kostengünstig. Es können aber auch andere Schall- oder Schwingungsaufnehmer als Sensoren vorgesehen sein, mit denen ein Schall und/oder eine Schwingung messbar sind, die auf Kavitation rückschließen lässt. Alternativ ist denkbar, dass der Sensor und/oder der weitere Sensor als Luftsensor, beispielsweise als Mikrofon, ausgestaltet sind. The sensor and / or the further sensor may preferably be a knock sensor. Knock sensors are very inexpensive. However, it is also possible to provide other sound or vibration sensors as sensors with which a sound and / or an oscillation can be measured, which suggests cavitation. Alternatively it is conceivable that the sensor and / or the further sensor as an air sensor, such as a microphone, are designed.
Eine Auswertung der Daten, die der Sensor erfasst, kann vorteilhafterweise in der Recheneinheit des Ventils erfolgen. Es ist auch möglich, dass eine Auswertung durch eine externe Recheneinheit erfolgt. Zusätzlich kann vorteilhaft eine Speicherung der Daten erfolgen. Mit Vorteil hat die Recheneinheit dazu einen Datenspeicher. In dem Datenspeicher können die Daten vorzugsweise protokolliert und/oder gespeichert sein. Dadurch ist es möglich, die vom Sensor erfassten Daten, zusätzlich oder alternativ später ausgewertet werden. Bei Überschreiten bestimmter voreingestellter Grenzwerte kann die Recheneinheit eine Warnung ausgeben, beispielsweise durch ein Alarmsignal in einer Benutzeroberfläche. An evaluation of the data detected by the sensor can advantageously take place in the arithmetic unit of the valve. It is also possible that an evaluation is carried out by an external computing unit. In addition, storage of the data can advantageously take place. Advantageously, the arithmetic unit to a data storage. In the data memory, the data may preferably be logged and / or stored. This makes it possible to additionally or alternatively evaluate the data acquired by the sensor later. If certain preset limit values are exceeded, the arithmetic unit may issue a warning, for example by an alarm signal in a user interface.
Mit Vorteil sind durch die Recheneinheit kavitationsvermeidende Maßnahmen einleitbar, sobald vom Sensor eine Kavitation erfasst wird. Beispielsweise kann ein Advantageously, cavitation-avoiding measures can be introduced by the arithmetic unit as soon as a cavitation is detected by the sensor. For example, a
Durchfluss des Ventils verändert werden, um die entstandene Kavitation einzudämmen. Vorteilhafterweise kann dadurch ein Materialverschleiß durch Kavitation verlangsamt oder verhindert werden. Flow of the valve to be changed in order to contain the resulting cavitation. Advantageously, this can slow down or prevent material wear due to cavitation.
Die Übertragung der Daten vom Sensor zu der Recheneinheit und/oder zu dem Datenspeicher kann dabei vorteilhafterweise über einen Bus oder ein System aus Bussen erfolgen. Vorteilhafterweise handelt es sich bei dem Bus um einen Feldbus. The transmission of the data from the sensor to the arithmetic unit and / or to the data memory can advantageously take place via a bus or a system of buses. Advantageously, the bus is a field bus.
Bevorzugte Ausführungsbeispiele der Erfindung werden im Folgenden anhand schematischer Zeichnungen näher erläutert. Es zeigen: Preferred embodiments of the invention are explained in more detail below with reference to schematic drawings. Show it:
Figur 1 in einem Längsschnitt eines 2/2-Wege Einbauventils eine mögliche Position eines Sensors und Figure 1 in a longitudinal section of a 2/2-way cartridge valve a possible position of a sensor and
Figur 2 in einem Längsschnitt eines 4/3-Proportional-Wegeventils mögliche Figure 2 in a longitudinal section of a 4/3-way proportional valve possible
Positionen eines Sensors oder mehrerer Sensoren. Positions of one or more sensors.
Figur 1 zeigt ein Ventil 1, das als 2/2-Wege-Einbauventil ausgestaltet ist. Das Ventil 1 weist einen Kolben 2 auf, der in einer zweiteiligen Buchse 4 angeordnet ist. Die Buchse 4 ist in einer gestuften Aufnahmebohrung 5 eines Hydraulikblocks 7 eingesetzt. Dem Kolben 2 ist ein Ventilsitz zugeordnet. Gemäß Figur 1 sind zwei Varianten des Kolbens 2 und der Buchse 4 gezeigt. Ein Steuerdeckel 6 schließt die Aufnahmebohrung der Ventilpatrone ab. Weiterhin ist in dem Steuerdeckel ein Vorsteuerventil 8 vorgesehen. Eine bevorzugte Position A für einen Sensor 10, zur Messung eines Schalls, zur Detektion einer Kavitation, ist außen am Steuerdeckel 6 ausgebildet. Figure 1 shows a valve 1, which is designed as a 2/2-way cartridge valve. The valve 1 has a piston 2, which is arranged in a two-part bushing 4. The bush 4 is inserted in a stepped receiving bore 5 of a hydraulic block 7. The piston 2 is associated with a valve seat. According to Figure 1, two variants of the piston 2 and the socket 4 are shown. A control cover 6 closes off the receiving bore of the valve cartridge. Furthermore, a pilot valve 8 is provided in the control cover. A preferred position A for a sensor 10, for measuring a sound, for the detection of cavitation, is formed on the outside of the control cover 6.
Figur 2 zeigt ein Ventil 20, das als ein 4/3-Proportional-Wegeventil mit Figure 2 shows a valve 20, which as a 4/3 proportional directional valve with
elektrohydraulischer Betätigung ausgestaltet ist. Das Ventil 20 weist ein Hauptventil 22 und ein Vorsteuerventil 24 auf. Das Hauptventil 22 hat ein Gehäuse 26, einen electro-hydraulic actuation is configured. The valve 20 has a main valve 22 and a pilot valve 24. The main valve 22 has a housing 26, a
Hauptsteuerschieber 28 und ein Anbauteil mit einer Rückstellfeder 30, das ein Gehäuse 32 aufweist. Main spool 28 and an attachment with a return spring 30, which has a housing 32.
Das Vorsteuerventil 24 weist ein Ventilgehäuse 34 auf, in dem ein Steuerschieber 35 versschiebbar angeordnet ist. Des Weiteren hat das Vorsteuerventil 24 eine The pilot valve 24 has a valve housing 34 in which a spool 35 is slidably mounted. Furthermore, the pilot valve 24 has a
Hilfsbetätigungseinrichtung 36, die an dem Ventilgehäuse 34 vorgesehen ist und durch die das Vorsteuerventil 24 betätigbar ist. Bei der Hilfsbetätigungseinrichtung 36 sind zwei Magnete 38 und 40 vorgesehen. Diese sind jeweils in einem Gehäuseteil 42a und 42b des Ventilgehäuses 34 vorgesehen, wobei ein jeweiliger Gehäuseteil 42a und 42b stirnseitig an das Ventilgehäuse 34 des Vorsteuerventils 24 anschließt. Auxiliary operating device 36 which is provided on the valve housing 34 and through which the pilot valve 24 is actuated. In the auxiliary operating device 36, two magnets 38 and 40 are provided. These are each provided in a housing part 42a and 42b of the valve housing 34, wherein a respective housing part 42a and 42b the front side of the valve housing 34 of the pilot valve 24 connects.
Schematisch durch Blöcke sind jeweils bevorzugte Positionen A bis E dargestellt, wobei an einer oder mehrerer der Positionen A bis E ein Sensor 44 bis 52 oder jeweils ein Sensor 44 bis 52 befestigbar ist. Eine Mehrzahl von Sensoren 44 bis 52 ist somit möglich. Eine erste bevorzugte Position A für den Sensor 44 befindet sich außen am Gehäuse 26 des Hauptventils 22. Es ist beispielsweise möglich, dass der Sensor 44 zwischen dem Gehäuse 26 des Hauptventils 22 und dem Gehäuse 34 des Vorsteuerventils 24 befestigt ist. Eine weitere bevorzugte Position B für den Sensor 46 befindet sich an dem Gehäuse 32 des Anbauteils mit der Rückstellfeder 30. So kann der Sensor 46 beispielsweise außen an einer Mantelfläche des Gehäuses 32 montierbar sein. Eine weitere bevorzugte Position C für einen Sensor 48 ist außen an dem Gehäuse 34 des Vorsteuerventils 24 vorgesehen. Der Sensor 48 kann dabei am Gehäuse 34 im Bereich des Steuerschiebers 35 montierbar sein. Weitere bevorzugte Positionen D und E für die Sensoren 50 und 52 sind an dem Schematically represented by blocks respectively preferred positions A to E, wherein at one or more of the positions A to E, a sensor 44 to 52 or in each case a sensor 44 to 52 can be fastened. A plurality of sensors 44 to 52 is thus possible. A first preferred position A for the sensor 44 is external to the housing 26 of the main valve 22. It is possible, for example, for the sensor 44 to be secured between the housing 26 of the main valve 22 and the housing 34 of the pilot valve 24. Another preferred position B for the sensor 46 is located on the housing 32 of the attachment with the return spring 30. Thus, the sensor 46, for example, outside of a lateral surface of the housing 32 can be mounted. Another preferred position C for a sensor 48 is provided on the outside of the housing 34 of the pilot valve 24. The sensor 48 can be mounted on the housing 34 in the region of the control slide 35. Further preferred positions D and E for the sensors 50 and 52 are on the
Teilgehäuse 42b der Hilfsbetätigungseinrichtung 36 vorgesehen. Die Position D befindet sich beispielsweise außerhalb einer Ansteuerelektronik und die Position E ist außerhalb des Magneten 38 vorgesehen. Part housing 42b of the auxiliary actuator 36 is provided. The position D is located For example, outside a control electronics and the position E is provided outside of the magnet 38.
Offenbart ist eine Anordnung mit einem Ventil und mit einem Sensor, der einen Schall und/oder eine Vibration erfasst, wobei der Sensor außen an einem Teil des Gehäuses des Ventils befestigt ist. Disclosed is an arrangement with a valve and with a sensor that detects a sound and / or a vibration, wherein the sensor is attached to the outside of a part of the housing of the valve.
Bezugszeichenliste LIST OF REFERENCE NUMBERS
A,B,C,D, E Position eines Sensors. A, B, C, D, E position of a sensor.
1 Ventil 1 valve
2 Kolben  2 pistons
4 Buchse  4 socket
5 Aufnahmebohrung  5 receiving hole
6 Steuerdeckel  6 control cover
7 Hydraulikblock  7 hydraulic block
8 Vorsteuerventil  8 pilot valve
10 Sensor  10 sensor
20 Ventil  20 valve
22 Hauptventil  22 main valve
24 Vorsteuerventil  24 pilot valve
26 Gehäuse des Hauptventils 26 Housing of the main valve
28 Hauptsteuerschieber 28 main spool
30 Rückstellfeder  30 return spring
32 Gehäuse der Rückstellfeder 32 housing of the return spring
34 Gehäuse des Vorsteuerventils34 Housing of the pilot valve
35 Steuerschieber 35 spool
36 Hllfsbetätigungseinrichtung 36 operating device
38,40 Magnete 38.40 magnets
42a,b Gehäuse  42a, b housing
44 Sensor  44 sensor
46 Sensor  46 sensor
48 Sensor  48 sensor
50 Sensor  50 sensor
52 Sensor  52 sensor

Claims

Patentansprüche claims
1. Anordnung mit zumindest einem Ventil (1, 20) und mit zumindest einer Recheneinheit, und mit zumindest einem Sensor (10, 44 - 52), der mit der Recheneinheit verbunden ist, dadurch gekennzeichnet, dass das Ventil (1, 20) ein Ventilgehäuse (26) hat und der Sensor (10, 44 - 52) am Ventilgehäuse (26) befestigt ist, und/oder dass das Ventil (1, 20) ein Anbauteil (6, 8, 24, 30, 36) aufweist und der Sensor (10, 44 - 52) oder ein weiterer Sensor (10, 44 - 52) am Anbauteil (6, 8, 24, 30, 36) befestigt ist. Characterized in that the valve (1, 20) a Valve housing (26) and the sensor (10, 44 - 52) is attached to the valve housing (26), and / or that the valve (1, 20) has an attachment (6, 8, 24, 30, 36) and the Sensor (10, 44 - 52) or another sensor (10, 44 - 52) on the attachment (6, 8, 24, 30, 36) is attached.
2. Anordnung nach Anspruch 1, wobei das Ventil (1, 20) ein Einbauventil ist und das Ventilgehäuse einen Steuerdeckel (6) hat, an dem der Sensor (10) befestigt ist. 2. Arrangement according to claim 1, wherein the valve (1, 20) is a cartridge valve and the valve housing has a control cover (6) to which the sensor (10) is attached.
3. Anordnung nach Anspruch 1 oder 2, wobei zumindest ein Betätigungsmagnet (38, 40) vorgesehen ist, der zum Betätigen eines Ventilkörpers (28) des Ventils (20) vorgesehen ist, wobei der Sensor (44 - 52) oder ein weiterer Sensor (44 - 52) am 3. Arrangement according to claim 1 or 2, wherein at least one actuating magnet (38, 40) is provided, which is provided for actuating a valve body (28) of the valve (20), wherein the sensor (44 - 52) or another sensor ( 44 - 52) on
Betätigungsmagnet (38, 40) befestigt ist. Actuating magnet (38, 40) is attached.
4. Anordnung nach einem der Ansprüche 1 bis 3, wobei der Sensor (10, 44 - 52) oder ein weiterer Sensor (10, 44 - 52) an der Elektronik des Ventils (1, 20) oder eines Vorsteuerventils (24) vorgesehen ist. 4. Arrangement according to one of claims 1 to 3, wherein the sensor (10, 44 - 52) or another sensor (10, 44 - 52) on the electronics of the valve (1, 20) or a pilot valve (24) is provided ,
5. Anordnung nach einem der Ansprüche 1 bis 4, wobei ein Wegsensor vorgesehen ist, mit dem ein Verschiebeweg eines oder des Ventilkörpers (20) des Ventils (10) erfassbar ist, wobei der Sensor (10, 44 - 52) oder der weitere Sensor (10, 44 - 52) am Wegsensor vorgesehen ist. 5. Arrangement according to one of claims 1 to 4, wherein a displacement sensor is provided, with which a displacement of one or the valve body (20) of the valve (10) can be detected, wherein the sensor (10, 44 - 52) or the further sensor (10, 44 - 52) is provided on the displacement sensor.
6. Anordnung nach einem der Ansprüche 1 bis 5, wobei ein Vorsteuerventil (24) vorgesehen ist, wobei der Sensor (10, 44 - 52) oder der weitere Sensor (10, 44 - 52) an einem Gehäuse (34) des Vorsteuerventils (24) oder am Vorsteuerventil (24) vorgesehen ist. 6. Arrangement according to one of claims 1 to 5, wherein a pilot valve (24) is provided, wherein the sensor (10, 44 - 52) or the further sensor (10, 44 - 52) on a housing (34) of the pilot valve ( 24) or on the pilot valve (24) is provided.
7. Anordnung nach einem der Ansprüche 1 bis 6, wobei eine Auswertung und/oder eine Speicherung der Daten in einer zusätzlichen Elektronik und/oder in der Recheneinheit des Ventils (1, 20) erfolgt. 7. Arrangement according to one of claims 1 to 6, wherein an evaluation and / or storage of the data in an additional electronics and / or in the arithmetic unit of the valve (1, 20).
8. Anordnung nach einem der Ansprüche 1 bis 7, wobei für das Ventil (1, 20) in Abhängigkeit der vom Sensor (10, 44 - 52) oder dem weiteren Sensor (10, 44 - 52) erfassten Daten Kavitation vermeidende Maßnahmen ausführbar sind. 8. Arrangement according to one of claims 1 to 7, wherein for the valve (1, 20) in dependence of the sensor (10, 44 - 52) or the further sensor (10, 44 - 52) detected data cavitation avoiding measures are executable ,
9. Anordnung nach einem der Ansprüche 1 bis 8, wobei ein Datenspeicher in der Recheneinheit des Ventils (1, 20) und/oder in der zusätzlichen Elektronik vorgesehen ist, um die vom Sensor (10, 44 - 52) erfassten Daten zu speichern. 9. Arrangement according to one of claims 1 to 8, wherein a data memory in the arithmetic unit of the valve (1, 20) and / or in the additional electronics is provided to store the sensor (10, 44 - 52) detected data.
10. Anordnung nach einem der Ansprüche 1 bis 9, wobei eine Übertragung der Daten zwischen den elektronischen Bauteilen mittels einem Bus vorgesehen ist. 10. Arrangement according to one of claims 1 to 9, wherein a transmission of the data between the electronic components is provided by means of a bus.
PCT/EP2018/061894 2017-05-16 2018-05-08 Arrangement comprising at least one valve WO2018210640A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102017208177.5 2017-05-16
DE102017208177.5A DE102017208177A1 (en) 2017-05-16 2017-05-16 arrangement

Publications (1)

Publication Number Publication Date
WO2018210640A1 true WO2018210640A1 (en) 2018-11-22

Family

ID=62167301

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2018/061894 WO2018210640A1 (en) 2017-05-16 2018-05-08 Arrangement comprising at least one valve

Country Status (2)

Country Link
DE (1) DE102017208177A1 (en)
WO (1) WO2018210640A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3832272A2 (en) 2019-12-02 2021-06-09 Danfoss A/S Cavitation sensing unit for providing a cavitation sensing signal and being adapted to be connected to a control valve of a hydrodynamic system

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3743338A1 (en) * 1987-12-21 1989-06-29 Bosch Gmbh Robert Hydraulic distributing valve with position monitoring
EP0462632A1 (en) 1983-10-28 1991-12-27 Genetics Institute, Inc. Method for producing a desired human protein by recombinant DNA techniques
DE19947129A1 (en) * 1999-09-30 2001-04-05 Siemens Ag Diagnosis system, especially for control
US6220284B1 (en) * 1999-07-12 2001-04-24 Smc Corporation Pilot operated directional control valve having position detecting function
EP1298372A2 (en) * 2001-09-26 2003-04-02 Bürkert GmbH & Co. KG Diagnostic system for a switching valve
DE102008059449A1 (en) * 2008-11-21 2010-05-27 Mahle International Gmbh Actuating device for use in gas exchange valve device to control gas flow in diesel engine, has sensor measuring parameter of magnetic field, which is produced by electromagnets, during operation of actuating device
JP2011027615A (en) * 2009-07-28 2011-02-10 Toshiba Corp Integrity monitoring evaluation support system and method of valve device
US20150059886A1 (en) * 2013-08-27 2015-03-05 Fisher Controls International Llc Method of cavitation/flashing detection in or near a process control valve

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0462632A1 (en) 1983-10-28 1991-12-27 Genetics Institute, Inc. Method for producing a desired human protein by recombinant DNA techniques
DE3743338A1 (en) * 1987-12-21 1989-06-29 Bosch Gmbh Robert Hydraulic distributing valve with position monitoring
US6220284B1 (en) * 1999-07-12 2001-04-24 Smc Corporation Pilot operated directional control valve having position detecting function
DE19947129A1 (en) * 1999-09-30 2001-04-05 Siemens Ag Diagnosis system, especially for control
EP1298372A2 (en) * 2001-09-26 2003-04-02 Bürkert GmbH & Co. KG Diagnostic system for a switching valve
DE102008059449A1 (en) * 2008-11-21 2010-05-27 Mahle International Gmbh Actuating device for use in gas exchange valve device to control gas flow in diesel engine, has sensor measuring parameter of magnetic field, which is produced by electromagnets, during operation of actuating device
JP2011027615A (en) * 2009-07-28 2011-02-10 Toshiba Corp Integrity monitoring evaluation support system and method of valve device
US20150059886A1 (en) * 2013-08-27 2015-03-05 Fisher Controls International Llc Method of cavitation/flashing detection in or near a process control valve

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3832272A2 (en) 2019-12-02 2021-06-09 Danfoss A/S Cavitation sensing unit for providing a cavitation sensing signal and being adapted to be connected to a control valve of a hydrodynamic system
RU2753942C1 (en) * 2019-12-02 2021-08-24 Данфосс А/С Cavitation detection module, control valve and actuator containing a cavitation detection module

Also Published As

Publication number Publication date
DE102017208177A1 (en) 2018-11-22

Similar Documents

Publication Publication Date Title
DE102008061350A1 (en) Hydrostatic system with a hydropneumatic accumulator
EP1711357A1 (en) Active roll stabilization system
EP3371018B1 (en) Pressure-limiting valve
DE102009023168A1 (en) Position measuring device for detecting the position of at least one actuator of a fluidic system without position sensor
DE102010041170A1 (en) Valve assembly for brake booster of motor vehicle, has pressure transducer with two pressure sensors that produce respective pressure measured values, where sensors are independently operable from one another and receive similar pressure
WO2018210640A1 (en) Arrangement comprising at least one valve
EP2792889B1 (en) Flow regulating valve assembly
DE202015104477U1 (en) sensor arrangement
DE102016210385A1 (en) Pressure sensor for a high pressure accumulator and high pressure accumulator
DE102016119714A1 (en) Suspension system for a vehicle axle
DE3817058C2 (en) Hydraulic shock brake for piping systems and. the like
EP3699438B1 (en) Check valve system with electronic control
DE102009030901A1 (en) Pressure control valve arrangement with pressure medium channel with oval cross-section
DE102012223346A1 (en) Arrangement of hydraulic control valve e.g. pressure regulating valve for pressure control of axial-piston pump of hydraulic machine, has spring arrangement that is screwed in axial direction against spring seat in housing by screw
DE102012103636A1 (en) Bidirectional flow control valve for fluidic lifting cylinder installed in agricultural vehicle, has common valve element provided between check valves, which is displaced to equilibrium position depending upon flux direction of fluid
DE102019101632A1 (en) Drive device
DE102006060871A1 (en) Actuator system for a motor vehicle's clutch, especially a hybrid vehicle, has a control device, a piston device and a device for detecting a position
DE102005062346A1 (en) Hydraulic linear actuator
DE102020132911A1 (en) Anti-perforation protection for magnetic membrane coupling
DE102018208893A1 (en) Direct controlled hydraulic directional valve
DE102011016626A1 (en) Magnetic valve, particularly for hydraulic damper, comprises housing, in which flow path is formed for fluid, where valve body is provided, which is movably arranged between closing position and opening position along axis inside housing
EP2584230A1 (en) Valve, hydraulic assembly with such a valve and use of a button or switch for a valve
DE102017010017A1 (en) Drain control device for a filter system and filter system with a drain control device
DE102009058406A1 (en) Charge detection system
DE102013005127B4 (en) adjustment

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 18724818

Country of ref document: EP

Kind code of ref document: A1

122 Ep: pct application non-entry in european phase

Ref document number: 18724818

Country of ref document: EP

Kind code of ref document: A1