EP3394443B1 - Magnetic actuator for a conveying unit - Google Patents

Magnetic actuator for a conveying unit Download PDF

Info

Publication number
EP3394443B1
EP3394443B1 EP16805869.1A EP16805869A EP3394443B1 EP 3394443 B1 EP3394443 B1 EP 3394443B1 EP 16805869 A EP16805869 A EP 16805869A EP 3394443 B1 EP3394443 B1 EP 3394443B1
Authority
EP
European Patent Office
Prior art keywords
armature
diaphragm
magnetic actuator
intermediate layer
membrane
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.)
Active
Application number
EP16805869.1A
Other languages
German (de)
French (fr)
Other versions
EP3394443A1 (en
Inventor
Peter Boehland
Christoph Waletzek
Axel Wartke
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.)
Robert Bosch GmbH
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 EP3394443A1 publication Critical patent/EP3394443A1/en
Application granted granted Critical
Publication of EP3394443B1 publication Critical patent/EP3394443B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B17/00—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
    • F04B17/03—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors
    • F04B17/04—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors using solenoids
    • F04B17/042—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors using solenoids the solenoid motor being separated from the fluid flow
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B35/00—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for
    • F04B35/04—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for the means being electric
    • F04B35/045—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for the means being electric using solenoids
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B43/00—Machines, pumps, or pumping installations having flexible working members
    • F04B43/02—Machines, pumps, or pumping installations having flexible working members having plate-like flexible members, e.g. diaphragms
    • F04B43/04—Pumps having electric drive
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B45/00—Pumps or pumping installations having flexible working members and specially adapted for elastic fluids
    • F04B45/04—Pumps or pumping installations having flexible working members and specially adapted for elastic fluids having plate-like flexible members, e.g. diaphragms
    • F04B45/047—Pumps having electric drive
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2210/00—Working fluid
    • F05B2210/10—Kind or type
    • F05B2210/11—Kind or type liquid, i.e. incompressible
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2210/00—Working fluid
    • F05B2210/10—Kind or type
    • F05B2210/12—Kind or type gaseous, i.e. compressible
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S417/00—Pumps

Definitions

  • the invention is based on a magnetic actuator according to the preamble of the independent claim. It is such a solenoid actuator from the DE 10 2013 211 164 known, which is in operative connection with a movable membrane.
  • a fluid feed pump comprises at least one electromagnet and an armature which is arranged such that it is located in an electromagnetic field that can be generated by the electromagnet. Furthermore, the armature that can be moved by this is attached to the armature, in particular in a central region of a membrane.
  • DE 10 2004 057 688 A1 discloses a diaphragm pump with a pump diaphragm, an eccentric drive, a delivery space for a medium and an aggregate space separated from the delivery space by the pump membrane.
  • the membrane body has a plunger pin in its center.
  • Diaphragm pumps are off too DE 807 058 C , US 2015/226192 A1 , DE 10 2010 038 872 A1 and DE 10 2010 038 873 A1 known.
  • DE 807 058 discloses a domestic water pump with an electric drive, characterized by the use of a piston or diaphragm pump with an alternating current magnet as the drive.
  • Diaphragm pumps are used to convey, in particular, operating / auxiliary materials such as a reducing agent in the exhaust gas aftertreatment system of motor vehicles. These are for example through Magnetic lift actuators operated, for which plunging and flat armature magnetic circuits are used.
  • Diaphragm pumps which are used, for example, to suck back the freezable reducing agent circulating in an exhaust gas aftertreatment system, usually work for a period of 30 seconds or more after the vehicle has been switched off and must operate particularly quietly. Furthermore, it must be ensured with pumps of this type that they completely suck back the freezable reducing agent from parts of the exhaust gas aftertreatment system that are not resistant to ice pressure during their short operating time.
  • the magnetic actuator according to the invention with the characterizing features of the independent claim has the advantage of improved durability, particularly in the area of the armature-membrane combination.
  • a back suction pump according to the prior art can be seen which comprises a housing 12.
  • a magnetic coil 14 is embedded in the housing 12.
  • a magnet pot comprises a compression spring receptacle 16 which is let into a compression spring 18.
  • the compression spring 18 acts on an armature 26 with a spike-shaped spring receptacle.
  • Below the armature 26 there is a membrane seal 20 made of elastic material.
  • the membrane seal 20 closes a sealing seat 22 which is located between the membrane seal 20 and a valve plate 24.
  • Position 28 marks a main air gap which extends essentially in the horizontal direction between the magnet pot and the surface of the armature 26 with the spring receptacle.
  • the diaphragm pump 10 comprises according to the representation in Figure 1 a secondary air gap 30, which also extends in the horizontal direction.
  • an inlet 32 to which the operating / auxiliary material is present under delivery pressure, and a corresponding outlet 34 are controlled.
  • the diaphragm pump 10 according to the longitudinal section in Figure 2 comprises a magnet pot 40 which encloses the magnet coil 14.
  • the magnet pot 40 forms a one-piece armature guide 42 in which an armature bolt of the armature 43 is guided.
  • the armature 43 actuates a membrane 44 having elastic properties.
  • the membrane 44 closes, for example, a valve seat 48 represented by an embossed groove 46.
  • the membrane 44 which has elastic properties, is held on the valve plate 24, for example, via a holding plate 52.
  • the valve plate 24 comprises a continuous channel 54.
  • a check valve 56 for opening or closing the inlet 32 and another check valve 58 for closing or opening the Procedure 34.
  • the longitudinal section shows according to Figure 2 a magnetic disk 60, which is part of a magnetic circuit in which the magnetic flux 104 runs.
  • the magnetic circuit includes the armature 43, the magnetic disk 60 and the magnetic pot 40.
  • Reference numeral 90 denotes an outer radius of the armature 43 which defines a surface delimiting an air gap
  • reference numeral 86 denotes the radius of a cylindrical region free for the movement of the armature 43.
  • FIG. 3 shows a delivery unit or a pump in the form of a diaphragm pump 110, which has a magnetic actuator 111, via the translatory reciprocating movement of which, in the exemplary embodiment, a pumping effect is generated. Electrical contacts, in particular the magnetic coil, are not shown for the sake of simplicity.
  • the magnetic actuator 111 has an armature 118, which is connected to an elastomer membrane 117 at the end via a thermoplastic extrusion 119.
  • the armature is designed as a plunger armature which is surrounded radially by a magnetic coil 14.
  • the solenoid actuator also has a compression spring 18 which presses the elastomer membrane via the armature - in the de-energized state of the solenoid 14 - in the area of its sealing bead 480 onto the valve seat or sealing seat 48 of the valve plate 24.
  • a compression spring 18 which presses the elastomer membrane via the armature - in the de-energized state of the solenoid 14 - in the area of its sealing bead 480 onto the valve seat or sealing seat 48 of the valve plate 24.
  • an integrated closing valve 130 (48, 480) is formed in the pump, which closes the working chamber 120 of the diaphragm pump in FIG Figure 3 illustrated de-energized state with respect to the suction-side valve or the inlet valve 113 of the diaphragm pump.
  • the armature together with the membrane moves between the sealing seat support 48 on the valve plate and the stop 122 in the area of the plunger geometry.
  • Two stops are thus implemented, one of which, namely the one in Figure 3 Sealing seat support arranged at the bottom, causing almost no noise due to the buffering through the design of the membrane as an elastomer membrane.
  • the upper stop 122 which, when the magnet is energized, attracts the armature 118 via the plunger armature geometry, is based on a metallic stop in the present exemplary embodiment.
  • additional damping measures can be provided here, for example by providing a rubber coating or by attaching spacers made of a damping material.
  • the armature 118 moves in a, for example, cylindrical cavity 128 which is at least partially surrounded by the magnetic coil 14.
  • the armature has a spring chamber 126 which is open on the side facing away from the working chamber.
  • the spring 18 protrudes into the spring chamber, which is supported at its end protruding from the spring chamber on the base body or magnetic return pot 123 of the diaphragm pump.
  • a vent opening 121 for venting the spring space or the cylindrical cavity 128 is provided in the return pot.
  • a so-called magnetic yoke collar 124 surrounds the cavity 128 along a larger part of its longitudinal extent, at least on the side of the facing the working space Cavity and angled there radially in the direction of the magnet coil. Between the yoke collar and the cavity there is a bearing 129, designed for example as a sleeve, with a magnetic back for reducing a magnetic resistance, so that the armature 118 is guided over a long area with low resistance.
  • the device present here can be completely encapsulated and equipped with a welding rib 127 in order to be fastened to the pump housing 125 by means of a favorable connection technique, for example laser welding.
  • the membrane 117 and the working space 120 enclosed with it also make it possible to convey gaseous media or liquids with gas fractions.
  • FIG. 4 shows an enlarged illustration of the magnetic actuator 111 (without illustration of the magnetic coil) in a cross-sectional side view.
  • the armature consists of a magnetically conductive material which is provided with two concentric undercuts 133 and 135 on its face facing the working chamber 120 of the diaphragm pump, so that the thermoplastic encapsulation 119 of the armature can establish a mechanically firm connection with the armature.
  • the armature is provided with a so-called undercut 137 so that jamming of the armature in the area between its cylindrical extension and the diameter-wide area at the level of the connection of the thermoplastic injection molding 119 can be avoided when the armature is fully tightened when the magnet coil is energized.
  • the intermediate layer made of thermoplastic material or the thermoplastic extrusion coating 119 for its part has an undercut 131 on the side so that the elastomer membrane 117 applied to the intermediate layer can also establish a mechanically firm connection with the intermediate layer.
  • the intermediate layer has a preferably circular elevation on the front side, which is found on the side of the elastomer membrane facing the working space as a sealing bead 480, which with the sealing seat 48 of the valve plate 24 as in Figure 2 shown can interact.
  • a sealing lip 139 of the elastomer membrane serves to delimit the working space in a fluid-tight manner at the edge, while a thickened edge area closes the elastomer membrane their mechanical locking in the mechanical structure of the diaphragm pump, for example in the area of the valve plate 24, is used.
  • the anchor-diaphragm combination is therefore specially designed to enable improved adhesion of the elastomer material of the diaphragm.
  • a thermoplastic plastic is sprayed onto the metallic part of the anchor.
  • a mechanically firm connection of the materials is ensured by a suitable combination of materials and the use of a suitable adhesion promoter for the elastomer, which would not be the case without the thermoplastic intermediate layer.
  • the thermoplastic intermediate layer adheres better to the metallic anchor than the elastomer material of the working membrane when a suitable adhesion promoter is used.
  • surface structures can be provided, for example on the end face of the anchor, in order to support even closer interlocking of the paired materials.
  • Fig. 5 shows an anchor-membrane combination according to the invention, also in a cross-sectional side view.
  • the same or similar components as in the embodiment according to FIG Figure 4 are provided with the same reference numbers.
  • the rubber or elastomer membrane 117 is held mechanically by transverse bores 500 and by axial bores 600 in the plastic or the thermoplastic extrusion coating 119.
  • the shoring can be used in both volumetric and pressure-regulated systems in which such a pump is integrated, for example in the area of exhaust gas aftertreatment, but also in medical technology or in coffee machines, especially in various conveying devices that should be closed when not energized .

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Reciprocating Pumps (AREA)

Description

Stand der TechnikState of the art

Die Erfindung geht aus von einem Magnetaktor nach der Gattung des unabhängigen Anspruchs. Es ist schon ein solcher Magnetaktor aus der DE 10 2013 211 164 bekannt, der mit einer beweglichen Membran in Wirkverbindung steht.The invention is based on a magnetic actuator according to the preamble of the independent claim. It is such a solenoid actuator from the DE 10 2013 211 164 known, which is in operative connection with a movable membrane.

Aus DE 10 2009 028 027 A1 ist eine Fluid-Förderpumpe bekannt. Die Fluid-Förderpumpe umfasst mindestens einen Elektromagneten sowie einen Anker, der derart angeordnet ist, dass er sich in einem von dem Elektromagneten erzeugbaren elektromagnetischen Feld befindet. Ferner ist der durch dieses bewegbare Anker, insbesondere in einem mittleren Bereich einer Membran am Anker befestigt.Out DE 10 2009 028 027 A1 a fluid feed pump is known. The fluid feed pump comprises at least one electromagnet and an armature which is arranged such that it is located in an electromagnetic field that can be generated by the electromagnet. Furthermore, the armature that can be moved by this is attached to the armature, in particular in a central region of a membrane.

DE 10 2004 057 688 A1 offenbart eine Membranpumpe mit einer Pumpenmembran, einem Exzenterantrieb, einem Förderraum für ein Medium und einem von dem Förderraum durch die Pumpenmembran abgetrennten Aggregatraum. Als Verbindung mit dem Exzenterantrieb weist der Membrankörper in seinem Zentrum einen Stößelbolzen auf. DE 10 2004 057 688 A1 discloses a diaphragm pump with a pump diaphragm, an eccentric drive, a delivery space for a medium and an aggregate space separated from the delivery space by the pump membrane. As a connection with the eccentric drive, the membrane body has a plunger pin in its center.

Membranpumpen sind auch aus DE 807 058 C , US 2015/226192 A1 , DE 10 2010 038 872 A1 und DE 10 2010 038 873 A1 bekannt.Diaphragm pumps are off too DE 807 058 C , US 2015/226192 A1 , DE 10 2010 038 872 A1 and DE 10 2010 038 873 A1 known.

DE 807 058 offenbart eine Hauswasserpumpe mit elektrischem Antrieb, gekennzeichnet durch die Verwendung einer Kolben- oder Membranpumpe mit einem Wechselstrommagneten als Antrieb. DE 807 058 discloses a domestic water pump with an electric drive, characterized by the use of a piston or diaphragm pump with an alternating current magnet as the drive.

Für die Förderung, insbesondere von Betriebs-/Hilfsstoffen, wie beispielsweise eines Reduktionsmittels im Abgasnachbehandlungssystem von Kraftfahrzeugen, werden Membranpumpen eingesetzt. Diese sind beispielsweise durch magnetische Hubaktoren betätigt, wozu Tauch- und Flachankermagnetkreise eingesetzt werden.Diaphragm pumps are used to convey, in particular, operating / auxiliary materials such as a reducing agent in the exhaust gas aftertreatment system of motor vehicles. These are for example through Magnetic lift actuators operated, for which plunging and flat armature magnetic circuits are used.

DE 10 2007 059 239 A1 hat eine Membran sowie eine Hubkolben-Membranpumpe zum Gegenstand. Die Membran weist ein Befestigungselement auf, das mit einem Antriebselement der Membranpumpe befestigbar ist. Insbesondere ist das Befestigungselement in die Membranpumpe eingebettet aufgenommen. DE 10 2007 059 239 A1 deals with a diaphragm and a reciprocating diaphragm pump. The membrane has a fastening element which can be fastened to a drive element of the membrane pump. In particular, the fastening element is received embedded in the diaphragm pump.

Membranpumpen, die beispielsweise zum Rücksaugen des in einem Abgasnachbehandlungssystem zirkulierenden gefrierfähigen Reduktionsmittels eingesetzt werden, arbeiten in der Regel nach Abstellen des Fahrzeugs für einen Zeitraum von 30 Sekunden und mehr und müssen einen besonders geräuscharmen Betrieb aufweisen. Ferner ist bei derartigen Pumpen sicherzustellen, dass diese während ihrer kurzen Betriebszeit das gefrierfähige Reduktionsmittel komplett aus nicht-eisdruckfesten Teilen des Abgasnachbehandlungssystems rücksaugen.Diaphragm pumps, which are used, for example, to suck back the freezable reducing agent circulating in an exhaust gas aftertreatment system, usually work for a period of 30 seconds or more after the vehicle has been switched off and must operate particularly quietly. Furthermore, it must be ensured with pumps of this type that they completely suck back the freezable reducing agent from parts of the exhaust gas aftertreatment system that are not resistant to ice pressure during their short operating time.

Offenbarung der ErfindungDisclosure of the invention

Der erfindungsgemäße Magnetaktor mit den kennzeichnenden Merkmalen des unabhängigen Anspruchs hat demgegenüber den Vorteil einer verbesserten Dauerhaltbarkeit insbesondere im Bereich der Anker-Membran-Kombination.In contrast, the magnetic actuator according to the invention with the characterizing features of the independent claim has the advantage of improved durability, particularly in the area of the armature-membrane combination.

Durch die in den abhängigen Ansprüchen aufgeführten Maßnahmen sind vorteilhafte Weiterbildungen und Verbesserungen des im unabhängigen Anspruch angegebenen Magnetaktors möglich.The measures listed in the dependent claims make advantageous developments and improvements of the magnetic actuator specified in the independent claim possible.

Kurze Beschreibung der ZeichnungenBrief description of the drawings

Ausführungsbeispiele sind in der Zeichnung dargestellt und in der nachfolgenden Beschreibung näher erläutert. Die in den Figuren 1 bis 4 dargestellten Ausführungsbeispiele sind nicht erfindungsgemäß und dienen nur zur Veranschaulichung. Die Ausführungsbeispiele zeigen

  • Figur 1 eine als Rücksaugpumpe eingesetzte Membranpumpe gemäß des Standes der Technik,
  • Figur 2 eine weitere, aus der DE102013211164 bekannte Membranpumpe mit einer Schließfunktion im Abstellfall,
  • Figur 3 eine Förderpumpe mit integriertem Schließventil,
  • Figur 4 eine Anker-Membran-Kombination und
  • Figur 5 eine erfindungsgemäße Anker-Membran-Kombination.
Exemplary embodiments are shown in the drawing and explained in more detail in the description below. The ones in the Figures 1 to 4 illustrated embodiments are not according to the invention and are only used for illustration. The exemplary embodiments show
  • Figure 1 a diaphragm pump used as a back suction pump according to the state of the art,
  • Figure 2 another from which DE102013211164 well-known diaphragm pump with a closing function when parked,
  • Figure 3 a feed pump with an integrated closing valve,
  • Figure 4 an anchor-membrane combination and
  • Figure 5 an anchor-membrane combination according to the invention.

AusführungsformenEmbodiments

Der Darstellung gemäß Figur 1 ist eine Rücksaugpumpe gemäß des Standes der Technik zu entnehmen, die ein Gehäuse 12 umfasst. In das Gehäuse 12 ist eine Magnetspule 14 eingelassen. Ein Magnettopf umfasst eine Druckfederaufnahme 16, die in eine Druckfeder 18 eingelassen ist. Die Druckfeder 18 beaufschlagt einen Anker 26 mit einer dornförmig ausgebildeten Federaufnahme. Unterhalb des Ankers 26 befindet sich eine Membrandichtung 20, die aus elastischem Material gefertigt ist. Die Membrandichtung 20 verschließt einen Dichtsitz 22, der sich zwischen der Membrandichtung 20 und einer Ventilplatte 24 befindet.According to the representation Figure 1 a back suction pump according to the prior art can be seen which comprises a housing 12. A magnetic coil 14 is embedded in the housing 12. A magnet pot comprises a compression spring receptacle 16 which is let into a compression spring 18. The compression spring 18 acts on an armature 26 with a spike-shaped spring receptacle. Below the armature 26 there is a membrane seal 20 made of elastic material. The membrane seal 20 closes a sealing seat 22 which is located between the membrane seal 20 and a valve plate 24.

Position 28 markiert einen Hauptluftspalt, der sich im Wesentlichen in horizontaler Richtung zwischen dem Magnettopf und der Oberfläche des Ankers 26 mit Federaufnahme erstreckt. Ferner umfasst die Membranpumpe 10 gemäß der Darstellung in Figur 1 einen Nebenluftspalt 30, der sich ebenfalls in horizontale Richtung erstreckt. Über die Ventilplatte 24 werden ein Zulauf 32, an dem unter Förderdruck stehender Betriebs-/Hilfsstoff anliegt und ein dementsprechender Ablauf 34 gesteuert.Position 28 marks a main air gap which extends essentially in the horizontal direction between the magnet pot and the surface of the armature 26 with the spring receptacle. Furthermore, the diaphragm pump 10 comprises according to the representation in Figure 1 a secondary air gap 30, which also extends in the horizontal direction. Via the valve plate 24, an inlet 32, to which the operating / auxiliary material is present under delivery pressure, and a corresponding outlet 34 are controlled.

Der Darstellung gemäß Figur 2 ist eine als Rücksaugpumpe eingesetzte Membranpumpe mit einem Magnetaktor zu entnehmen, wie sie aus der DE102013211164 bekannt ist. Die Membranpumpe 10 gemäß des Längsschnittes in Figur 2 umfasst einen Magnettopf 40, der die Magnetspule 14 umschließt. Der Magnettopf 40 bildet eine einteilige Ankerführung 42, in der ein Ankerbolzen des Ankers 43 geführt ist. Der Anker 43 betätigt eine elastische Eigenschaften aufweisende Membran 44. Die Membran 44 verschließt beispielsweise einen durch eine eingeprägte Rille 46 dargestellten Ventilsitz 48. Auf der Oberseite der Membran 44 befindet sich eine umlaufende Vertiefung 50, die korrespondierend zum auf der anderen Seite der Membran 44 liegenden eingeprägten Rille 46 verläuft.According to the representation Figure 2 a diaphragm pump with a solenoid actuator used as a back suction pump can be found as it is from the DE102013211164 is known. The diaphragm pump 10 according to the longitudinal section in Figure 2 comprises a magnet pot 40 which encloses the magnet coil 14. The magnet pot 40 forms a one-piece armature guide 42 in which an armature bolt of the armature 43 is guided. The armature 43 actuates a membrane 44 having elastic properties. The membrane 44 closes, for example, a valve seat 48 represented by an embossed groove 46. On the top of the membrane 44 there is a circumferential recess 50, which corresponds to the one on the other side of the membrane 44 embossed groove 46 runs.

Die elastische Eigenschaften aufweisende Membran 44 ist beispielsweise über ein Halteblech 52 auf der Ventilplatte 24 gehalten. Die Ventilplatte 24 umfasst einen durchgehenden Kanal 54. Unterhalb der Ventilplatte 24, d.h. auf der der Membran 44 gegenüberliegenden Seite der Ventilplatte 24 befindet sich jeweils ein Rückschlagventil 56 zum Öffnen bzw. Verschließen des Zulaufs 32 sowie ein weiteres Rückschlagventil 58 zum Verschließen bzw. Öffnen des Ablaufs 34.The membrane 44, which has elastic properties, is held on the valve plate 24, for example, via a holding plate 52. The valve plate 24 comprises a continuous channel 54. Below the valve plate 24, ie on the side of the valve plate 24 opposite the membrane 44, there is a check valve 56 for opening or closing the inlet 32 and another check valve 58 for closing or opening the Procedure 34.

Des Weiteren zeigt der Längsschnitt gemäß Figur 2 eine Magnetscheibe 60, welche Teil eines magnetischen Kreises ist, in welchem der magnetische Fluss 104 verläuft. Zum magnetischen Kreis zählen der Anker 43, die Magnetscheibe 60 sowie der Magnettopf 40.Furthermore, the longitudinal section shows according to Figure 2 a magnetic disk 60, which is part of a magnetic circuit in which the magnetic flux 104 runs. The magnetic circuit includes the armature 43, the magnetic disk 60 and the magnetic pot 40.

Mit Bezugszeichen 90 ist ein Außenradius des Ankers 43 bezeichnet, der eine einen Luftspalt begrenzende Fläche definiert, während mit Bezugszeichen 86 der Radius eines für die Bewegung des Ankers 43 freistehenden zylindrischen Bereichs bezeichnet ist.Reference numeral 90 denotes an outer radius of the armature 43 which defines a surface delimiting an air gap, while reference numeral 86 denotes the radius of a cylindrical region free for the movement of the armature 43.

Figur 3 zeigt ein Förderaggregat bzw. eine Pumpe in Form einer Membranpumpe 110, welche einen Magnetaktor 111 aufweist, über dessen im Ausführungsbeispiel translatorische Hin- und Herbewegung eine Pumpwirkung erzeugt wird. Elektrische Kontaktierungen insbesondere der Magnetspule sind der Einfachheit halber nicht dargestellt. Der Magnetaktor 111 weist einen Anker 118 auf, der stirnseitig über eine Thermoplastumspritzung 119 mit einer Elastomermembran 117 verbunden ist. Der Anker ist als Tauchanker ausgebildet, der radial von einer Magnetspule 14 umgeben ist. Der Magnetaktor weist ferner eine Druckfeder 18 auf, welche die Elastomermembran über den Anker - im unbestromten Zustand der Magnetspule 14 - im Bereich ihres Dichtwulsts 480 auf den Ventilsitz bzw. Dichtsitz 48 der Ventilplatte 24 drückt. Hierdurch ist in der Pumpe ein integriertes Schließventil 130 (48, 480) gebildet, welches den Arbeitsraum 120 der Membranpumpe im in Figur 3 dargestellten unbestromten Zustand gegenüber dem saugseitigen Ventil bzw. dem Zulaufventil 113 der Membranpumpe abdichtet. Hierdurch wird gewährleistet, daß im Falle der Anwendung bei einer Abgasnachbehandlung in einem Kraftfahrzeug zur Bereitstellung eines flüssigen Hilfsmittels zur Reduktion von Stickoxiden bei abgestelltem Fahrzeug kein Medium aus dem Tank zum am Abgastrakt angeordneten Dosierventil gelangen kann (Flutungsschutz), daß während eines regulären Förderbetriebs kein Fördervolumenverlust über den Arbeitsraum der Membranpumpe hindurch erfolgt und daß bei einem Aufkommen von Eisdruck der Dichtsitz gegen die Kraft der Druckfeder 18 öffnen und das System entlasten kann. Daneben zeigt Figur 3 auch ein bei einer Membranpumpe in an sich bekannter Weise vorgesehenes druckseitiges bzw. Ablaufventil 115, über welches über das Zulaufventil und den Arbeitsraum angesaugtes Medium zu einer Verbrauchsstelle, wie zum Beispiel einem Dosierventil wie oben angesprochen, weiterbefördert wird. Figure 3 shows a delivery unit or a pump in the form of a diaphragm pump 110, which has a magnetic actuator 111, via the translatory reciprocating movement of which, in the exemplary embodiment, a pumping effect is generated. Electrical contacts, in particular the magnetic coil, are not shown for the sake of simplicity. The magnetic actuator 111 has an armature 118, which is connected to an elastomer membrane 117 at the end via a thermoplastic extrusion 119. The armature is designed as a plunger armature which is surrounded radially by a magnetic coil 14. The solenoid actuator also has a compression spring 18 which presses the elastomer membrane via the armature - in the de-energized state of the solenoid 14 - in the area of its sealing bead 480 onto the valve seat or sealing seat 48 of the valve plate 24. As a result, an integrated closing valve 130 (48, 480) is formed in the pump, which closes the working chamber 120 of the diaphragm pump in FIG Figure 3 illustrated de-energized state with respect to the suction-side valve or the inlet valve 113 of the diaphragm pump. This ensures that, in the case of use in exhaust gas aftertreatment in a motor vehicle, a liquid auxiliary agent for reducing nitrogen oxides is made available When the vehicle is parked, no medium can get from the tank to the metering valve arranged on the exhaust tract (flooding protection), that no loss of delivery volume occurs via the working chamber of the diaphragm pump during regular pumping operations and that when ice pressure occurs, the sealing seat opens against the force of the compression spring 18 Can relieve the system. Next to it shows Figure 3 also a pressure-side or drain valve 115 provided in a known manner in a diaphragm pump, via which medium sucked in via the inlet valve and the working chamber is conveyed to a point of consumption, such as a metering valve as mentioned above.

Im Betriebsfall bewegt sich der Anker mitsamt der Membran zwischen der Dichtsitzauflage 48 auf der Ventilplatte und dem Anschlag 122 im Bereich der Tauchankergeometrie. Somit sind zwei Anschläge realisiert, wobei einer davon, nämlich die in Figur 3 unten angeordnete Dichtsitzauflage, infolge der Abpufferung durch die Ausbildung der Membran als Elastomermembran so gut wie keine Geräusche verursacht. Der obere Anschlag 122, der bei bestromtem Magneten den Anker 118 über die Tauchankergeometrie anzieht, beruht im vorliegenden Ausführungsbeispiel aus einem metallischen Anschlag. Wahlweise können hier zusätzliche Dämpfungsmaßnahmen vorgesehen sein, zum Beispiel durch das Vorsehen einer Gummierung bzw. durch das Anbringen von Distanzscheiben aus einem dämpfenden Material.During operation, the armature together with the membrane moves between the sealing seat support 48 on the valve plate and the stop 122 in the area of the plunger geometry. Two stops are thus implemented, one of which, namely the one in Figure 3 Sealing seat support arranged at the bottom, causing almost no noise due to the buffering through the design of the membrane as an elastomer membrane. The upper stop 122, which, when the magnet is energized, attracts the armature 118 via the plunger armature geometry, is based on a metallic stop in the present exemplary embodiment. Optionally, additional damping measures can be provided here, for example by providing a rubber coating or by attaching spacers made of a damping material.

Der Anker 118 bewegt sich im Betrieb der Membranpumpe in einem beispielsweise zylindrischen Hohlraum 128, der von der Magnetspule 14 zumindest teilweise umgeben ist. Der Anker weist einen Federraum 126 auf, der auf der dem Arbeitsraum abgewandten Seite offen ist. Auf dieser Seite ragt die Feder 18 in den Federraum hinein, welche sich an ihrem aus dem Federraum herausragenden Ende an dem Grundkörper bzw. magnetischen Rückschlußtopf 123 der Membranpumpe abstützt. In dem Rückschlußtopf ist eine Entlüftungsöffnung 121 zur Entlüftung des Federraums bzw. des zylindrischen Hohlraums 128 vorgesehen. Ein sogenannter magnetischer Rückschlußkragen 124 umgibt den Hohlraum 128 entlang eines größeren Teils seiner Längserstreckung, jedenfalls auf der dem Arbeitsraum zugewandten Seite des Hohlraums und winkelt dort radial in Richtung der Magnetspule ab. Zwischen dem Rückschlußkragen und dem Hohlraum befindet sich ein beispielsweise als Hülse ausgebildetes Lager 129 mit einem magnetischen Rücken zur Reduzierung eines magnetischen Widerstands, so daß sich eine widerstandsarme und langflächige Führung des Ankers 118 ergibt.When the diaphragm pump is in operation, the armature 118 moves in a, for example, cylindrical cavity 128 which is at least partially surrounded by the magnetic coil 14. The armature has a spring chamber 126 which is open on the side facing away from the working chamber. On this side, the spring 18 protrudes into the spring chamber, which is supported at its end protruding from the spring chamber on the base body or magnetic return pot 123 of the diaphragm pump. A vent opening 121 for venting the spring space or the cylindrical cavity 128 is provided in the return pot. A so-called magnetic yoke collar 124 surrounds the cavity 128 along a larger part of its longitudinal extent, at least on the side of the facing the working space Cavity and angled there radially in the direction of the magnet coil. Between the yoke collar and the cavity there is a bearing 129, designed for example as a sleeve, with a magnetic back for reducing a magnetic resistance, so that the armature 118 is guided over a long area with low resistance.

Die hier vorliegende Vorrichtung kann komplett umspritzt und mit einer Schweißrippe 127 ausgestattet werden, um mittels einer günstigen Verbindungstechnik, beispielsweise Laserschweißen, an dem Pumpengehäuse 125 befestigt zu werden. Die Membran 117 und der damit eingeschlossene Arbeitsraum 120 ermöglichen es, auch gasförmige Medien bzw. Flüssigkeiten mit Gasanteilen zu fördern.The device present here can be completely encapsulated and equipped with a welding rib 127 in order to be fastened to the pump housing 125 by means of a favorable connection technique, for example laser welding. The membrane 117 and the working space 120 enclosed with it also make it possible to convey gaseous media or liquids with gas fractions.

Figur 4 zeigt eine vergrößerte Darstellung des Magnetaktors 111 (ohne Darstellung der Magnetspule) in einer Querschnittsseitenansicht. Der Anker besteht aus einem magnetisch leitenden Werkstoff, der an seiner dem Arbeitsraum 120 der Membranpumpe zugewandten Stirnseite mit zwei konzentrischen Hinterschnitten 133 bzw. 135 versehen ist, so daß die stirnseitige Thermoplastumspritzung 119 des Ankers eine mechanisch feste Verbindung mit dem Anker eingehen kann. Der Anker ist hierbei mit einem sogenannten Freistich 137 versehen, so daß ein Verklemmen des Ankers im Bereich zwischen seiner zylindrischen Erstreckung und dem durchmesserbreiten Bereich auf Höhe der Anbindung der Thermoplastumspritzung 119 bei einem vollständigen Anziehen des Ankers im bestromten Zustand der Magnetspule vermieden werden kann. Figure 4 shows an enlarged illustration of the magnetic actuator 111 (without illustration of the magnetic coil) in a cross-sectional side view. The armature consists of a magnetically conductive material which is provided with two concentric undercuts 133 and 135 on its face facing the working chamber 120 of the diaphragm pump, so that the thermoplastic encapsulation 119 of the armature can establish a mechanically firm connection with the armature. The armature is provided with a so-called undercut 137 so that jamming of the armature in the area between its cylindrical extension and the diameter-wide area at the level of the connection of the thermoplastic injection molding 119 can be avoided when the armature is fully tightened when the magnet coil is energized.

Die Zwischenschicht aus thermoplastischem Material bzw. die Thermoplastumspritzung 119 ihrerseits weist seitlich einen Hinterschnitt 131 auf, damit die an der Zwischenschicht aufgebrachte Elastomermembran 117 ebenfalls eine mechanisch feste Verbindung mit der Zwischenschicht eingehen kann. Die Zwischenschicht weist stirnseitig eine vorzugsweise kreisförmige Erhöhung auf, die sich auf der dem Arbeitsraum zugewandten Seite der Elastomermembran als Dichtwulst 480 wiederfindet, der mit dem Dichtsitz 48 der Ventilplatte 24 wie in Figur 2 dargestellt zusammenwirken kann. Eine Dichtlippe 139 der Elastomermembran dient zur randständigen fluiddichten Begrenzung des Arbeitsraums, während ein verdickter Randbereich der Elastomermembran zu ihrer mechanischen Arretierung im mechanischen Gefüge der Membranpumpe, beispielsweise im Bereich der Ventilplatte 24, dient.The intermediate layer made of thermoplastic material or the thermoplastic extrusion coating 119 for its part has an undercut 131 on the side so that the elastomer membrane 117 applied to the intermediate layer can also establish a mechanically firm connection with the intermediate layer. The intermediate layer has a preferably circular elevation on the front side, which is found on the side of the elastomer membrane facing the working space as a sealing bead 480, which with the sealing seat 48 of the valve plate 24 as in Figure 2 shown can interact. A sealing lip 139 of the elastomer membrane serves to delimit the working space in a fluid-tight manner at the edge, while a thickened edge area closes the elastomer membrane their mechanical locking in the mechanical structure of the diaphragm pump, for example in the area of the valve plate 24, is used.

Die Anker-Membran-Kombination ist also speziell ausgelegt, um eine verbesserte Haftung des Elastomerwerkstoffs der Membran zu ermöglichen. Dafür wird auf den metallischen Teil des Ankers ein thermoplastischer Kunststoff aufgespritzt. Neben dem mindestens einen mechanischen Hinterschnitt wird also durch eine geeignete Werkstoffkombination und Verwendung eines geeigneten Haftvermittlers für den Elastomer eine mechanisch feste Verbindung der Materialien gewährleistet, die ohne die thermoplastische Zwischenschicht nicht gegeben wäre. Auch die thermoplastische Zwischenschicht wiederum haftet unter Verwendung eines geeigneten Haftvermittlers besser auf dem metallischen Anker als das Elastomermaterial der Arbeitsmembran. Zusätzlich können Oberflächenstrukturierungen beispielsweise der Stirnseite des Ankers vorgesehen werden, um noch innigeres Ineinandergreifen der gepaarten Materialien zu unterstützen.The anchor-diaphragm combination is therefore specially designed to enable improved adhesion of the elastomer material of the diaphragm. For this purpose, a thermoplastic plastic is sprayed onto the metallic part of the anchor. In addition to the at least one mechanical undercut, a mechanically firm connection of the materials is ensured by a suitable combination of materials and the use of a suitable adhesion promoter for the elastomer, which would not be the case without the thermoplastic intermediate layer. The thermoplastic intermediate layer, in turn, adheres better to the metallic anchor than the elastomer material of the working membrane when a suitable adhesion promoter is used. In addition, surface structures can be provided, for example on the end face of the anchor, in order to support even closer interlocking of the paired materials.

Fig. 5 zeigt eine erfindungsgemäße Anker-Membran-Kombination ebenfalls in Querschnittsseitenansicht. Gleiche oder ähnliche Bestandteile wie in der Ausführungsform gemäß Figur 4 sind mit gleichen Bezugszeichen versehen. Die Gummi- bzw. Elastomermembran 117 ist hierbei durch Querbohrungen 500 und durch Axialbohrungen 600 im Kunststoff bzw. der Thermoplastumspritzung 119 mechanisch gehalten. Fig. 5 shows an anchor-membrane combination according to the invention, also in a cross-sectional side view. The same or similar components as in the embodiment according to FIG Figure 4 are provided with the same reference numbers. The rubber or elastomer membrane 117 is held mechanically by transverse bores 500 and by axial bores 600 in the plastic or the thermoplastic extrusion coating 119.

Der Verbau kann sowohl in volumetrisch arbeitenden als auch in druckgeregelten Systemen verwendet werden, in denen eine solche Pumpe eingebunden ist, beispielsweise im Bereich der Abgasnachbehandlung, aber auch der Medizintechnik oder bei Kaffeemaschinen, insbesondere bei diversen Fördereinrichtungen, die im nicht bestromten Zustand geschlossen sein sollten.The shoring can be used in both volumetric and pressure-regulated systems in which such a pump is integrated, for example in the area of exhaust gas aftertreatment, but also in medical technology or in coffee machines, especially in various conveying devices that should be closed when not energized .

Claims (9)

  1. Magnetic actuator (111) for a conveyor apparatus (110), in particular a diaphragm pump for an operating fluid/auxiliary fluid in a motor vehicle, having a spring-loaded armature (118) which can extend through a solenoid coil (14) and acts on a diaphragm (117) which can impinge an operating chamber (120) of the conveyor apparatus (110) and/or cover or expose, respectively, a seal seat (48) of a valve, wherein the diaphragm (117) is connected to the armature (118) by way of an intermediate layer (119), and wherein at least one undercut for fixed connection between the intermediate layer and the armature is provided in the armature, characterized in that the diaphragm (117) in the state assembled on the intermediate layer (119) has a sealing bead (480) which can serve as a counterpart to the seal seat (48) of the valve (130), and the intermediate layer (119) has at least one transverse bore (500) and/or at least one axial bore (600).
  2. Magnetic actuator (111) according to Claim 1, characterized in that the armature (118) is made from a magnetically conducting material.
  3. Magnetic actuator (111) according to Claim 1 or 2, characterized in that the diaphragm (117) is made from an elastomer material.
  4. Magnetic actuator (111) according to one of the preceding claims, characterized in that the intermediate layer (119) is made from a thermoplastic material.
  5. Magnetic actuator (111) according to one of the preceding claims, characterized in that at least one undercut (131) for a fixed connection between the intermediate layer (119) and the diaphragm (117) is provided in the intermediate layer (119).
  6. Magnetic actuator (111) according to Claim 1, characterized in that the diaphragm (117) is held by the at least one transverse bore (500) and/or the at least one axial bore (600).
  7. Magnetic actuator (111) according to Claim 6, characterized in that the diaphragm (117) fills the at least one transverse bore (500) and/or the at least one axial bore (600).
  8. Magnetic actuator (111) according to one of the preceding claims, characterized in that the valve (130) in the case of a non-energized solenoid coil (14) can be kept closed on account of the spring loading of the armature (118) that emanates from a compression spring (18).
  9. Diaphragm pump (110) having a magnetic actuator (111) according to one of the preceding claims.
EP16805869.1A 2015-12-22 2016-12-06 Magnetic actuator for a conveying unit Active EP3394443B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102015226463.7A DE102015226463A1 (en) 2015-12-22 2015-12-22 Magnetic actuator for a delivery unit
PCT/EP2016/079875 WO2017108388A1 (en) 2015-12-22 2016-12-06 Magnetic actuator for a conveying unit

Publications (2)

Publication Number Publication Date
EP3394443A1 EP3394443A1 (en) 2018-10-31
EP3394443B1 true EP3394443B1 (en) 2021-03-31

Family

ID=57482456

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16805869.1A Active EP3394443B1 (en) 2015-12-22 2016-12-06 Magnetic actuator for a conveying unit

Country Status (5)

Country Link
EP (1) EP3394443B1 (en)
KR (1) KR102651569B1 (en)
CN (1) CN108474374B (en)
DE (1) DE102015226463A1 (en)
WO (1) WO2017108388A1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017211056A1 (en) 2017-06-29 2019-01-03 Robert Bosch Gmbh Diaphragm pump and method for its production
CN107524585A (en) * 2017-07-12 2017-12-29 浙江卡韦德新能源科技有限公司 Diesel motor exhaust handles electromagnetism urea pump
DE102017213958A1 (en) 2017-08-10 2019-02-14 Robert Bosch Gmbh Magnetic actuator for a delivery unit
DE102017215658A1 (en) 2017-09-06 2019-03-07 Robert Bosch Gmbh Device for connecting metallic components with plastic components in a delivery unit
DE102017218452A1 (en) 2017-10-16 2019-04-18 Robert Bosch Gmbh Magnetic actuator for a delivery unit
DE102018200382A1 (en) 2018-01-11 2019-07-11 Robert Bosch Gmbh Magnetic assembly for a setting and / or delivery unit, method for producing the magnet assembly
JP7227396B2 (en) * 2019-03-28 2023-02-21 エスゼット ディージェイアイ テクノロジー カンパニー リミテッド plant protection drone

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6065389A (en) * 1996-08-29 2000-05-23 Knf Neuberger Gmbh Diaphragm pump
DE102007059239A1 (en) * 2007-12-07 2009-06-10 Thomas Magnete Gmbh Diaphragm, and reciprocating diaphragm pump
US20140227120A1 (en) * 2011-08-26 2014-08-14 Robert Bosch Gmbh Dosing system for a liquid reducing agent

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE807058C (en) * 1948-12-29 1951-06-25 Elektro Mechanik G M B H Domestic water pump
DE102004057688A1 (en) 2004-11-30 2006-06-01 Robert Bosch Gmbh Diaphragm pump motor vehicle, has diaphragm with metallic diaphragm body which is formed from corrosion-resistant steel, and lifter pin connected with body by welding for actuating diaphragm
ATE446449T1 (en) * 2006-07-21 2009-11-15 Ulman Dichtungstechnik Gmbh COMPOSITE MEMBRANE
DE102009028027A1 (en) 2009-07-27 2011-02-03 Robert Bosch Gmbh Fluid feed pump
DE102010013108A1 (en) * 2010-03-26 2011-09-29 Promera Gmbh & Co. Kg Double diaphragm pump
DE102010038873A1 (en) * 2010-08-04 2012-02-09 Gardner Denver Thomas Gmbh pump
DE102010038872A1 (en) * 2010-08-04 2012-02-09 Gardner Denver Thomas Gmbh pump
DE102012000676A1 (en) * 2012-01-17 2013-07-18 Knf Flodos Ag displacement
DE102013211164A1 (en) 2013-06-14 2014-12-31 Robert Bosch Gmbh Magnetic actuator for a delivery unit
ES2719705T3 (en) * 2014-02-07 2019-07-12 Graco Minnesota Inc Positive displacement pump not pressed and fluid displacement procedure not pressed

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6065389A (en) * 1996-08-29 2000-05-23 Knf Neuberger Gmbh Diaphragm pump
DE102007059239A1 (en) * 2007-12-07 2009-06-10 Thomas Magnete Gmbh Diaphragm, and reciprocating diaphragm pump
US20140227120A1 (en) * 2011-08-26 2014-08-14 Robert Bosch Gmbh Dosing system for a liquid reducing agent

Also Published As

Publication number Publication date
KR102651569B1 (en) 2024-03-27
CN108474374A (en) 2018-08-31
DE102015226463A1 (en) 2017-06-22
EP3394443A1 (en) 2018-10-31
WO2017108388A1 (en) 2017-06-29
KR20180095038A (en) 2018-08-24
CN108474374B (en) 2021-04-09

Similar Documents

Publication Publication Date Title
EP3394443B1 (en) Magnetic actuator for a conveying unit
DE102006019584B4 (en) metering
EP2798193B1 (en) Valve
DE102007000293A1 (en) High pressure fuel pump comprises pump housing and aspiration opening gap for defining aspiration opening, where conveying opening gap defines conveying opening, and fuel is subjected to raised pressure in pressure chamber
DE10051614B4 (en) Electromagnetic valve
DE102009000357A1 (en) Kraftstofffpumpe
DE102009055003A1 (en) high pressure pump
DE19747850A1 (en) Piston pump
WO2014029850A1 (en) Electromagnetic actuator, valve, and injection pump
DE102008013440A1 (en) Magnetically actuated reciprocating pump for delivering and exact dosing of hydraulic fluid from inlet to outlet area of pump, has hollow chambers of pump that are filled with fluid in currentless condition
DE102011002427A1 (en) Double check valve for e.g. preventing back-flow of reduction agent from storage tank of exhaust gas after treatment system of internal combustion engine of motor car, has disk-like elastic membrane provided with two slots
WO2014005750A1 (en) Delivery module for operating supplies for the treatment of exhaust gas
DE102008055611A1 (en) Reciprocating piston pump for supplying fluid, particularly fuel or fuel additive for internal-combustion engine for fluid supply system, has supply area with inlet opening and outlet opening
DE102014214231A1 (en) Electromagnetic actuator for a suction valve and suction valve
DE102006001924A1 (en) hydraulic valve
DE102008058046A1 (en) Reciprocating piston pump for supplying fluid, particularly fuel or fuel additive for internal-combustion engine for fluid supplying system, has supplying area with inlet port and outlet port
DE10218501B4 (en) Electromagnetic valve for a high-pressure fuel supply device
WO2016177753A1 (en) Solenoid valve, use of same, and safety-relevant pneumatic system
WO2016180579A1 (en) Solenoid pump for an auxiliary unit of a vehicle
DE102014006503B4 (en) Diaphragm pump
DE102014201101A1 (en) Electromagnetically controllable suction valve
EP3353411B1 (en) Valve, in particular suction valve, in a high-pressure pump of a fuel injection system
WO2012171757A1 (en) Conveyor assembly for operating/auxiliary materials for internal combustion engines
DE102011017495A1 (en) Metering unit for controlling volume of fuel supplied to high pressure pump i.e. radial piston pump, of common-rail system of diesel engine, has one-way valve integrated into bearing and opening towards cover element or armature space
DE102016202954A1 (en) Electromagnetically controllable suction valve and high-pressure pump

Legal Events

Date Code Title Description
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: UNKNOWN

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE

PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20180723

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

DAV Request for validation of the european patent (deleted)
DAX Request for extension of the european patent (deleted)
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: EXAMINATION IS IN PROGRESS

17Q First examination report despatched

Effective date: 20190716

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: ROBERT BOSCH GMBH

REG Reference to a national code

Ref country code: DE

Ref legal event code: R079

Ref document number: 502016012725

Country of ref document: DE

Free format text: PREVIOUS MAIN CLASS: F04B0043000000

Ipc: F04B0043040000

RIC1 Information provided on ipc code assigned before grant

Ipc: F04B 43/04 20060101AFI20201006BHEP

Ipc: F04B 17/04 20060101ALI20201006BHEP

Ipc: F04B 35/04 20060101ALI20201006BHEP

Ipc: F04B 45/047 20060101ALI20201006BHEP

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20201215

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 1377227

Country of ref document: AT

Kind code of ref document: T

Effective date: 20210415

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502016012725

Country of ref document: DE

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG9D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210630

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210630

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210331

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210331

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210331

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210331

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210331

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20210331

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210331

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210331

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210331

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210331

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210331

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210331

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210331

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210802

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210331

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210731

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502016012725

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210331

Ref country code: AL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210331

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210331

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20220104

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210731

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210331

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210331

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20211206

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20211231

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20211206

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20211206

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20211206

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20211231

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20211231

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20211231

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 1377227

Country of ref document: AT

Kind code of ref document: T

Effective date: 20211206

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20211206

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210331

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20161206

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210331

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20231219

Year of fee payment: 8

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210331

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20240227

Year of fee payment: 8

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210331