EP3841320A1 - Valve for controlling exhaust gas or fresh air in a drive unit of a motor vehicle or of a generator - Google Patents

Valve for controlling exhaust gas or fresh air in a drive unit of a motor vehicle or of a generator

Info

Publication number
EP3841320A1
EP3841320A1 EP19758375.0A EP19758375A EP3841320A1 EP 3841320 A1 EP3841320 A1 EP 3841320A1 EP 19758375 A EP19758375 A EP 19758375A EP 3841320 A1 EP3841320 A1 EP 3841320A1
Authority
EP
European Patent Office
Prior art keywords
valve
housing
insulator
drive
valve according
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP19758375.0A
Other languages
German (de)
French (fr)
Inventor
Robert GROTKOWSKI
Rolf Anschicks
Peter Welteroth
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Vitesco Technologies Germany GmbH
Original Assignee
Vitesco Technologies Germany GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Vitesco Technologies Germany GmbH filed Critical Vitesco Technologies Germany GmbH
Publication of EP3841320A1 publication Critical patent/EP3841320A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
    • F02D9/08—Throttle valves specially adapted therefor; Arrangements of such valves in conduits
    • F02D9/10—Throttle valves specially adapted therefor; Arrangements of such valves in conduits having pivotally-mounted flaps
    • F02D9/1035—Details of the valve housing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
    • F02M26/65—Constructional details of EGR valves
    • F02M26/70—Flap valves; Rotary valves; Sliding valves; Resilient valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
    • F02M26/65—Constructional details of EGR valves
    • F02M26/72—Housings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
    • F16K1/18—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
    • F16K1/22—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
    • F16K1/221—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves specially adapted operating means therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K27/00—Construction of housing; Use of materials therefor
    • F16K27/02—Construction of housing; Use of materials therefor of lift valves
    • F16K27/0209—Check valves or pivoted valves
    • F16K27/0218—Butterfly valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
    • F16K31/04—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor
    • F16K31/041—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor for rotating valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D11/00—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated
    • F02D11/06—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance
    • F02D11/10—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance of the electric type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
    • F02D9/04—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits concerning exhaust conduits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
    • F02M26/52—Systems for actuating EGR valves
    • F02M26/53—Systems for actuating EGR valves using electric actuators, e.g. solenoids
    • F02M26/54—Rotary actuators, e.g. step motors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
    • F02M26/65—Constructional details of EGR valves

Definitions

  • the invention relates to a valve for controlling exhaust gas or fresh air in a drive unit of a motor vehicle or generator with a valve housing having a channel, with an adjustable valve body for releasing or closing a flow cross section of the channel and with an electric motor drive for adjusting the valve body.
  • valves are often used in internal combustion engines or fuel cells of motor vehicles or generators and are known from practice.
  • the duct often carries hot exhaust gas or is connected to components that are subject to high thermal loads. This high thermal load is passed on to the electric motor drive. Since the electromotive drive and components of a transmission connected to it can be thermally overloaded, water cooling is used in the valve known from practice. However, such water cooling is very expensive and requires a large amount of space.
  • the invention is based on the problem of developing a valve of the type mentioned at the outset in such a way that it can be produced at particularly low cost and has a particularly small installation space.
  • This design keeps the thermal load on the electric motor drive particularly low.
  • the thermal decoupling enables the production of independent assemblies of the electromotive drive and the valve housing. Thanks to the invention, complex and large-volume water cooling can be avoided.
  • the valve according to the invention is therefore particularly economical to manufacture and has a particularly small installation space.
  • the thermal decoupling is structurally particularly simple if the electromotive drive is arranged in a motor housing and if an insulator is arranged between the motor housing and the valve housing.
  • the isolator is an air gap.
  • the valve can be mounted particularly easily if the motor housing and the valve housing each have mutually opposite flanges and if the insulator keeps the flanges at a distance from one another. After selecting the valve housing and the motor housing, the valve can also be easily assembled in a modular system.
  • the isolator is made of plastic.
  • the thickness of the insulation makes it easy to determine the thickness of the plastic.
  • the plastic preferably has a height of at least 3 mm.
  • the isolator is structurally particularly simple if the isolator has at least one ring element for spacing the channel from the electromotive drive.
  • a ring element has the advantage that the cross section of the possible heat conduction is particularly small.
  • the insulation effect of the insulator can be easily adjusted if the wall thickness of the ring element is less than the height of the ring element.
  • the valve has a high stability with a small contact area between the motor housing and the valve housing when the motor housing and the valve housing are connected to one another via a cross support arranged away from the flange and when the cross support has an insulator.
  • a drive shaft fastened to the valve body and protruding into the motor housing is made of a thermally poorly conductive material, in particular plastic.
  • FIG. 1 schematically shows a partial area of a motor vehicle with a drive machine and a valve
  • Fig.2 enlarges the valve of Figure 1 in a per
  • FIG. 1 shows a partial area of a motor vehicle 1 with a drive unit having a drive machine 2.
  • the drive unit has two supply channels 3, 4 for fuel, for example gaseous fuel, and for fresh air and an exhaust line 5.
  • the drive machine 2 can be, for example, a fuel cell or an internal combustion engine.
  • a valve 7 which can be controlled by an electric motor drive 6 is arranged in the exhaust line 5.
  • valve 7 can also be arranged in the supply duct 3, 4 that carries fresh air or fuel.
  • Electric current generated by the drive machine 2 is fed to a control device 8.
  • the control device 8 is connected to an electrical system, not shown, of the motor vehicle.
  • the electromotive drive 6 of the valve 7 is supplied with electrical current via the control device 8.
  • a gear 9 with a position sensor 10 is arranged between the valve 7 and the electric motor drive 6. The position sensor 10 detects the position and thus the function of the valve 7.
  • FIG. 2 shows the valve 7 with the electric motor drive 6 of Figure 1 in an enlarged exploded view.
  • the valve 7 has a valve housing 11 to be mounted in the exhaust line 5 from FIG. 1 with a valve body 13 arranged therein, which can be screwed onto a drive shaft 12.
  • the valve body 13 can be adjusted by driving the drive shaft 12 and thus release a channel 14 of the exhaust line 5 or close.
  • the electric motor drive 6 is arranged together with the gear 9 shown in FIG. 1 in a motor housing 15.
  • the motor housing 15 and the valve housing 11 each have a flange 16, 17, between which an insulator 18 is arranged.
  • the insulator 18 is made of plastic and has three interconnected ring elements 19. Furthermore, the motor housing 15 and the valve housing 11 are connected via a transverse support 20 which is removed from the flanges 16, 17.
  • Cross support 20 has an insulator 21 with a ring element 22 and a screw 23, preferably made of plastic.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Electrically Driven Valve-Operating Means (AREA)
  • Magnetically Actuated Valves (AREA)

Abstract

The invention relates to a valve (7) of a drive unit of a motor vehicle, wherein a valve housing (11) is thermally decoupled from a motor housing (15). Components of an electric-motor drive (6) and of a transmission (9), which components are arranged in the motor housing (15), are therefore protected from thermal loads. The valve (7) can be economically produced and has a particularly small installation space.

Description

Beschreibung description
Ventil zur Steuerung von Abgas oder Frischluft in einer An triebseinheit eines Kraftfahrzeuges oder Generators Valve for controlling exhaust gas or fresh air in a drive unit of a motor vehicle or generator
Die Erfindung betrifft ein Ventil zur Steuerung von Abgas oder Frischluft in einer Antriebseinheit eines Kraftfahrzeuges oder Generators mit einem einen Kanal aufweisenden Ventilgehäuse, mit einem verstellbaren Ventilkörper zum Freigeben oder Verschließen eines Strömungsquerschnitts des Kanals und mit einem elekt romotorischen Antrieb zur Verstellung des Ventilkörpers. The invention relates to a valve for controlling exhaust gas or fresh air in a drive unit of a motor vehicle or generator with a valve housing having a channel, with an adjustable valve body for releasing or closing a flow cross section of the channel and with an electric motor drive for adjusting the valve body.
Solche Ventile werden bei Brennkraftmaschinen oder Brenn stoffzellen von Kraftfahrzeugen oder Generatoren häufig ein gesetzt und sind aus der Praxis bekannt. Der Kanal führt bei solchen Anlagen häufig heißes Abgas oder ist mit thermisch hoch belasteten Bauteilen verbunden. Diese hohe thermische Belastung wird auf den elektromotorischen Antrieb weiter geleitet. Da der elektromotorische Antrieb und mit diesem verbundene Bauteile eines Getriebes thermisch überlastet werden können, wird bei dem aus der Praxis bekannten Ventil eine Wasserkühlung eingesetzt. Eine solche Wasserkühlung ist jedoch sehr kostenintensiv und erfordert einen großen Bauraum. Such valves are often used in internal combustion engines or fuel cells of motor vehicles or generators and are known from practice. In such systems, the duct often carries hot exhaust gas or is connected to components that are subject to high thermal loads. This high thermal load is passed on to the electric motor drive. Since the electromotive drive and components of a transmission connected to it can be thermally overloaded, water cooling is used in the valve known from practice. However, such water cooling is very expensive and requires a large amount of space.
Der Erfindung liegt das Problem zugrunde, ein Ventil der eingangs genannten Art so weiter zu bilden, dass es besonders kosten günstig herstellbar ist und einen besonders geringen Bauraum aufweist . The invention is based on the problem of developing a valve of the type mentioned at the outset in such a way that it can be produced at particularly low cost and has a particularly small installation space.
Dieses Problem wird erfindungsgemäß dadurch gelöst, dass der Kanal von dem elektromotorischen Antrieb thermisch ent koppelt ist. This problem is solved according to the invention in that the channel is thermally decoupled from the electromotive drive.
Durch diese Gestaltung wird die thermische Belastung des elektromotorischen Antriebs besonders gering gehalten. Die thermische Entkoppelung ermöglicht die Fertigung unabhängiger Baugruppen des elektromotorischen Antriebs und des Ventilge- häuses. Dank der Erfindung lässt sich eine aufwändige und großvolumige Wasserkühlung vermeiden. Das erfindungsgemäße Ventil ist daher besonders kostengünstig herstellbar und weist einen besonders geringen Bauraum auf. This design keeps the thermal load on the electric motor drive particularly low. The thermal decoupling enables the production of independent assemblies of the electromotive drive and the valve housing. Thanks to the invention, complex and large-volume water cooling can be avoided. The valve according to the invention is therefore particularly economical to manufacture and has a particularly small installation space.
Zu einem weiteren Schutz gegen thermische Belastungen trägt es gemäß einer anderen vorteilhaften Weiterbildung der Erfindung bei, wenn der elektromotorische Antrieb zusammen mit einem Getriebe eine bauliche Einheit bildet. Hierdurch ist nicht nur der elektromotorische Antrieb, sondern auch das Getriebe zum Antrieb des Ventilkörpers vor thermischen Belastungen geschützt aus dem Kanal . According to another advantageous further development of the invention, further protection against thermal loads is achieved if the electromotive drive forms a structural unit together with a transmission. As a result, not only the electric motor drive, but also the transmission for driving the valve body is protected from the channel against thermal loads.
Die thermische Entkoppelung gestaltet sich gemäß einer anderen vorteilhaften Weiterbildung der Erfindung konstruktiv besonders einfach, wenn der elektromotorische Antrieb in einem Motor gehäuse angeordnet ist und wenn zwischen Motorgehäuse und Ventilgehäuse ein Isolator angeordnet ist. Im einfachsten Fall ist der Isolator ein Luftspalt. Hierdurch können das Ventil gehäuse und das Motorgehäuse aus Metall gefertigt sein und eine hohe Stabilität des Ventils sicherstellen. According to another advantageous development of the invention, the thermal decoupling is structurally particularly simple if the electromotive drive is arranged in a motor housing and if an insulator is arranged between the motor housing and the valve housing. In the simplest case, the isolator is an air gap. As a result, the valve housing and the motor housing can be made of metal and ensure a high stability of the valve.
Das Ventil lässt sich gemäß einer anderen vorteilhaften Wei terbildung der Erfindung besonders einfach montieren, wenn das Motorgehäuse und das Ventilgehäuse jeweils einander gegen überstehende Flansche aufweisen und wenn der Isolator die Flansche auf Abstand zueinander hält. Weiterhin lässt sich das Ventil nach Auswahl des Ventilgehäuses und des Motorgehäuses einfach in einem Baukastensystem zusammenstellen. According to another advantageous development of the invention, the valve can be mounted particularly easily if the motor housing and the valve housing each have mutually opposite flanges and if the insulator keeps the flanges at a distance from one another. After selecting the valve housing and the motor housing, the valve can also be easily assembled in a modular system.
Eine hohe Stabilität des Ventils bei einer sehr hohen thermischen Entkoppelung lässt sich gemäß einer anderen vorteilhaften Weiterbildung der Erfindung erreichen, wenn der Isolator aus Kunststoff gefertigt ist. Durch die Höhe des Kunststoffs lässt sich die Stärke der Isolation einfach festlegen. Vorzugsweise hat der Kunststoff eine Höhe von zumindest 3mm. Der Isolator gestaltet sich gemäß einer anderen vorteilhaften Weiterbildung der Erfindung konstruktiv besonders einfach, wenn der Isolator zumindest ein Ringelement zur Beabstandung des Kanals von dem elektromotorischen Antrieb aufweist. Ein Rin gelement hat den Vorteil, dass der Querschnitt der möglichen Wärmeleitung besonders klein ist. A high stability of the valve with a very high thermal decoupling can be achieved according to another advantageous development of the invention if the isolator is made of plastic. The thickness of the insulation makes it easy to determine the thickness of the plastic. The plastic preferably has a height of at least 3 mm. According to another advantageous development of the invention, the isolator is structurally particularly simple if the isolator has at least one ring element for spacing the channel from the electromotive drive. A ring element has the advantage that the cross section of the possible heat conduction is particularly small.
Die Isolationswirkung des Isolators lässt sich gemäß einer anderen vorteilhaften Weiterbildung der Erfindung einfach einstellen, wenn die Wandstärke des Ringelements kleiner ist als die Höhe des Ringelements. According to another advantageous development of the invention, the insulation effect of the insulator can be easily adjusted if the wall thickness of the ring element is less than the height of the ring element.
Das Ventil hat gemäß einer anderen vorteilhaften Weiterbildung der Erfindung eine hohe Stabilität bei einer geringen Kon taktfläche zwischen Motorgehäuse und Ventilgehäuse, wenn das Motorgehäuse und das Ventilgehäuse über eine von dem Flansch entfernt angeordnete Querstütze miteinander verbunden sind und wenn die Querstütze einen Isolator hat. According to another advantageous development of the invention, the valve has a high stability with a small contact area between the motor housing and the valve housing when the motor housing and the valve housing are connected to one another via a cross support arranged away from the flange and when the cross support has an insulator.
Zur weiteren thermischen Entkoppelung trägt es gemäß einer anderen vorteilhaften Weiterbildung der Erfindung bei, wenn eine an dem Ventilkörper befestigte und in das Motorgehäuse hin einragende Antriebswelle aus einem thermisch schlecht leitendem Material, insbesondere Kunststoff, gefertigt ist. According to another advantageous development of the invention, it contributes to further thermal decoupling if a drive shaft fastened to the valve body and protruding into the motor housing is made of a thermally poorly conductive material, in particular plastic.
Die Erfindung lässt zahlreiche Ausführungsformen zu. Zur weiteren Verdeutlichung ihres Grundprinzips ist eine davon in der Zeichnung dargestellt und wird nachfolgend beschrieben. Diese zeigt in The invention permits numerous embodiments. To further clarify its basic principle, one of these is shown in the drawing and is described below. This shows in
Fig.l schematisch einen Teilbereich eines Kraftfahrzeuges mit einer Antriebsmaschine und einem Ventil, 1 schematically shows a partial area of a motor vehicle with a drive machine and a valve,
Fig.2 vergrößert das Ventil aus Figur 1 in einer per Fig.2 enlarges the valve of Figure 1 in a per
spektivischen ExplosionsdarStellung . Figur 1 zeigt einen Teilbereich eines Kraftfahrzeuges 1 mit einer eine Antriebsmaschine 2 aufweisenden Antriebseinheit. Die Antriebseinheit hat zwei Zuführkanäle 3, 4 für Brennstoff, beispielsweise gasförmigen Brennstoff, und für Frischluft und einen Abgasstrang 5. Bei der Antriebsmaschine 2 kann es sich beispielsweise um eine Brennstoffzelle oder um eine Brenn kraftmaschine handeln. In dem Abgasstrang 5 ist ein von einem elektromotorischen Antrieb 6 ansteuerbares Ventil 7 angeordnet. spective exploded view. FIG. 1 shows a partial area of a motor vehicle 1 with a drive unit having a drive machine 2. The drive unit has two supply channels 3, 4 for fuel, for example gaseous fuel, and for fresh air and an exhaust line 5. The drive machine 2 can be, for example, a fuel cell or an internal combustion engine. A valve 7 which can be controlled by an electric motor drive 6 is arranged in the exhaust line 5.
In einer nicht dargestellten Ausführungsform kann das Ventil 7 auch in dem Frischluft führenden oder Brennstoff führenden Zuführkanal 3, 4 angeordnet sein. In an embodiment that is not shown, the valve 7 can also be arranged in the supply duct 3, 4 that carries fresh air or fuel.
Von der Antriebsmaschine 2 erzeugter elektrischer Strom wird einer Steuereinrichtung 8 zugeführt. Die Steuereinrichtung 8 ist mit einem nicht dargestellten Bordnetz des Kraftfahrzeuges verbunden. Der elektromotorische Antrieb 6 des Ventils 7 wird über die Steuereinrichtung 8 mit elektrischem Strom versorgt. Zwischen dem Ventil 7 und dem elektromotorischen Antrieb 6 ist ein Getriebe 9 mit einem Positionssensor 10 angeordnet. Der Positionssensor 10 erfasst die Stellung und damit die Funktion des Ventils 7. Electric current generated by the drive machine 2 is fed to a control device 8. The control device 8 is connected to an electrical system, not shown, of the motor vehicle. The electromotive drive 6 of the valve 7 is supplied with electrical current via the control device 8. A gear 9 with a position sensor 10 is arranged between the valve 7 and the electric motor drive 6. The position sensor 10 detects the position and thus the function of the valve 7.
Figur 2 zeigt das Ventil 7 mit dem elektromotorischen Antrieb 6 aus Figur 1 in einer vergrößerten Explosionsdarstellung. Das Ventil 7 hat ein in dem Abgasstrang 5 aus Figur 1 zu montierendes Ventilgehäuse 11 mit einem darin angeordneten, auf einer An triebswelle 12 verschraubbaren Ventilkörper 13. Der Ventilkörper 13 lässt sich durch Antrieb der Antriebswelle 12 verstellen und damit einen Kanal 14 des Abgasstrangs 5 freigeben oder ver schließen . Figure 2 shows the valve 7 with the electric motor drive 6 of Figure 1 in an enlarged exploded view. The valve 7 has a valve housing 11 to be mounted in the exhaust line 5 from FIG. 1 with a valve body 13 arranged therein, which can be screwed onto a drive shaft 12. The valve body 13 can be adjusted by driving the drive shaft 12 and thus release a channel 14 of the exhaust line 5 or close.
Der elektromotorische Antrieb 6 ist zusammen mit dem in Figur 1 dargestellten Getriebe 9 in einem Motorgehäuse 15 angeordnet. Das Motorgehäuse 15 und das Ventilgehäuse 11 haben jeweils einen Flansch 16, 17, zwischen denen ein Isolator 18 angeordnet ist. Der Isolator 18 ist aus Kunststoff gefertigt und weist drei miteinander verbundene Ringelemente 19 auf. Weiterhin sind das Motorgehäuse 15 und das Ventilgehäuse 11 über eine von den Flanschen 16, 17 entfernte Querstütze 20 verbunden. Die The electric motor drive 6 is arranged together with the gear 9 shown in FIG. 1 in a motor housing 15. The motor housing 15 and the valve housing 11 each have a flange 16, 17, between which an insulator 18 is arranged. The insulator 18 is made of plastic and has three interconnected ring elements 19. Furthermore, the motor housing 15 and the valve housing 11 are connected via a transverse support 20 which is removed from the flanges 16, 17. The
Querstütze 20 hat einen Isolator 21 mit einem Ringelement 22 und eine vorzugsweise aus Kunststoff gefertigte Schraube 23. Cross support 20 has an insulator 21 with a ring element 22 and a screw 23, preferably made of plastic.

Claims

Patentansprüche claims
1. Ventil (7) zur Steuerung von Abgas oder Frischluft in einer Antriebseinheit eines Kraftfahrzeuges oder Generators mit einem einen Kanal (14) aufweisenden Ventilgehäuse (11), mit einem verstellbaren Ventilkörper (13) zum Freigeben oder Verschließen eines Strömungsquerschnitts des Kanals (14) und mit einem elektromotorischen Antrieb (6) zur Ver stellung des Ventilkörpers (13), d a d u r c h g e k e n n z e i c h n e t , dass der Kanal (14) von dem elektromotorischen Antrieb (6) thermisch entkoppelt ist. 1. Valve (7) for controlling exhaust gas or fresh air in a drive unit of a motor vehicle or generator with a valve housing (11) having a channel (14), with an adjustable valve body (13) for releasing or closing a flow cross section of the channel (14) and with an electromotive drive (6) for adjusting the valve body (13), characterized in that the channel (14) is thermally decoupled from the electromotive drive (6).
2. Ventil nach Anspruch 1, d a d u r c h g e k e n n 2. Valve according to claim 1, d a d u r c h g e k e n n
z e i c h n e t , dass der elektromotorische Antrieb (6) zusammen mit einem Getriebe (9) eine bauliche Einheit bildet .  z e i c h n e t that the electromotive drive (6) forms a structural unit together with a gear (9).
3. Ventil nach Anspruch 1 oder 2, d a d u r c h g e 3. Valve according to claim 1 or 2, d a d u r c h g e
k e n n z e i c h n e t , dass der elektromotorische Antrieb (6) in einem Motorgehäuse (15) angeordnet ist und dass zwischen Motorgehäuse (15) und Ventilgehäuse (11) ein Isolator (18, 21) angeordnet ist.  that the electromotive drive (6) is arranged in a motor housing (15) and that an insulator (18, 21) is arranged between the motor housing (15) and the valve housing (11).
4. Ventil nach Anspruch 3, d a d u r c h g e k e n n 4. Valve according to claim 3, d a d u r c h g e k e n n
z e i c h n e t , dass das Motorgehäuse (115) und das Ventilgehäuse (11) jeweils einander gegenüberstehende Flasche (16, 17) aufweisen und dass der Isolator (18) die Flansche (16, 17) auf Abstand zueinander hält.  z e i c h n e t that the motor housing (115) and the valve housing (11) each have opposing bottle (16, 17) and that the insulator (18) keeps the flanges (16, 17) at a distance from each other.
5. Ventil nach Anspruch 3 oder 4, d a d u r c h g e 5. Valve according to claim 3 or 4, d a d u r c h g e
k e n n z e i c h n e t , dass der Isolator (18, 21) aus Kunststoff gefertigt ist.  n that the insulator (18, 21) is made of plastic.
6. Ventil nach zumindest einem der Ansprüche 3 bis 5, 6. Valve according to at least one of claims 3 to 5,
d a d u r c h g e k e n n z e i c h n e t , dass der Isolator (18, 21) zumindest ein Ringelement (19, 22) zur Beabstandung des Kanals (14) von dem elektromotorischen Antrieb (6) aufweist . characterized in that the insulator (18, 21) has at least one ring element (19, 22) for spacing of the channel (14) from the electromotive drive (6).
7. Ventil nach Anspruch 6, d a du r c h g e k e n n 7. Valve according to claim 6, d a du r c h g e k e n n
z e i c h n e t , dass die Wandstärke des Ringelements (19, 22) kleiner ist als die Höhe des Ringelements (19, 22) .  z e i c h n e t that the wall thickness of the ring element (19, 22) is smaller than the height of the ring element (19, 22).
8. Ventil nach zumindest einem der Ansprüche 3 bis 7, 8. Valve according to at least one of claims 3 to 7,
d a du r c h g e k e n n z e i c h n e t , dass das Mo torgehäuse (15) und das Ventilgehäuse (11) über eine von dem Flansch (16, 17) entfernt angeordnete Querstütze (20) miteinander verbunden sind und dass die Querstütze (20) einen Isolator (21) hat.  that the motor housing (15) and the valve housing (11) are connected to one another via a cross support (20) arranged away from the flange (16, 17) and that the cross support (20) has an insulator (21).
9. Ventil nach zumindest einem der Ansprüche 3 bis 8, 9. Valve according to at least one of claims 3 to 8,
d a du r c h g e k e n n z e i c h n e t , dass eine an dem Ventilkörper (13) befestigte und in das Motorgehäuse (15) hineinragende Antriebswelle (12) aus einem thermisch schlecht leitendem Material, insbesondere Kunststoff, gefertigt ist.  that a drive shaft (12) attached to the valve body (13) and protruding into the motor housing (15) is made of a thermally poorly conductive material, in particular plastic.
EP19758375.0A 2018-08-21 2019-08-20 Valve for controlling exhaust gas or fresh air in a drive unit of a motor vehicle or of a generator Withdrawn EP3841320A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102018214069.3A DE102018214069A1 (en) 2018-08-21 2018-08-21 Valve for controlling exhaust gas or fresh air in a drive unit of a motor vehicle or generator
PCT/EP2019/072264 WO2020038942A1 (en) 2018-08-21 2019-08-20 Valve for controlling exhaust gas or fresh air in a drive unit of a motor vehicle or of a generator

Publications (1)

Publication Number Publication Date
EP3841320A1 true EP3841320A1 (en) 2021-06-30

Family

ID=67734649

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Application Number Title Priority Date Filing Date
EP19758375.0A Withdrawn EP3841320A1 (en) 2018-08-21 2019-08-20 Valve for controlling exhaust gas or fresh air in a drive unit of a motor vehicle or of a generator

Country Status (5)

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US (1) US20210199058A1 (en)
EP (1) EP3841320A1 (en)
CN (1) CN112384721A (en)
DE (1) DE102018214069A1 (en)
WO (1) WO2020038942A1 (en)

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* Cited by examiner, † Cited by third party
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US20240240717A1 (en) * 2021-05-19 2024-07-18 Vitesco Technologies GmbH Valve arrangement

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WO2020038942A1 (en) 2020-02-27
US20210199058A1 (en) 2021-07-01
CN112384721A (en) 2021-02-19
DE102018214069A1 (en) 2020-02-27

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