WO2016150762A1 - Motor-driven pump assembly with a diaphragm unit - Google Patents

Motor-driven pump assembly with a diaphragm unit Download PDF

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Publication number
WO2016150762A1
WO2016150762A1 PCT/EP2016/055554 EP2016055554W WO2016150762A1 WO 2016150762 A1 WO2016150762 A1 WO 2016150762A1 EP 2016055554 W EP2016055554 W EP 2016055554W WO 2016150762 A1 WO2016150762 A1 WO 2016150762A1
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WO
WIPO (PCT)
Prior art keywords
connecting rod
membrane
unit
motor pump
fastening element
Prior art date
Application number
PCT/EP2016/055554
Other languages
German (de)
French (fr)
Inventor
Adrian Messner
Manfred Rüffer
Jens Bacher
Michael JÜRGING
Martina Breitkopf
Original Assignee
Continental Teves Ag & Co. Ohg
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 Continental Teves Ag & Co. Ohg filed Critical Continental Teves Ag & Co. Ohg
Publication of WO2016150762A1 publication Critical patent/WO2016150762A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
    • B60T17/02—Arrangements of pumps or compressors, or control devices therefor
    • 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
    • F04B45/043—Pumps or pumping installations having flexible working members and specially adapted for elastic fluids having plate-like flexible members, e.g. diaphragms two or more plate-like pumping flexible members in parallel

Definitions

  • the invention relates to a motor pump unit for under ⁇ pressure supply of a pneumatic brake booster, in particular for a hydraulic car brake system.
  • a pneumatic brake booster for a pneumatic brake booster
  • separate motor pump units are often used to generate the neces ⁇ sary vacuum.
  • motor pump units which are designed as double diaphragm pumps with two opposite elastomeric membranes.
  • the diaphragms are driven by an electric motor, where the rotational movement of the motor shaft is converted into a translational one by an eccentric drive and transmitted to the diaphragms by means of connecting rods.
  • the flexible membrane is usually attached to a rigid membrane holder made of plastic. This is connected by Reibsch performancemaschine or by encapsulation with an often multi-piece connecting rod.
  • the membrane unit is fixed to the connecting rod by means of a fastening element which is inserted transversely to the longitudinal axis of the connecting rod.
  • the connecting rod can be much simpler designed and produced for example by punching.
  • the fastener may be particularly simple and inexpensive formed as a simple spring clip, which clasps the membrane unit in the region of the connecting rod and at the same time forms an undercut of a notch or an opening of the connecting rod for locking. Both assembly and disassembly are therefore particularly easy.
  • the fastening element may be formed pin-shaped and arranged in aligned openings in the membrane unit and the connecting rod. This allows a particularly robust and rigid connection can be realized with cheap standard parts. Both simple pins and spring pins and dowel pins can be used, which can either be held by clamping force or glued.
  • the fastener may be formed as a screw, which either cooperates with a separate nut or is screwed directly into the material of the membrane unit or the connecting rod.
  • connection according to the invention can be carried out with only one or more fastening elements which allows certain factors such as cost, weight or strength to be prioritized.
  • Fig.l a known embodiment of a generic motor pump unit.
  • FIG. 2 shows a first embodiment according to the invention of the attachment of membrane to the connecting rod by means of a spring clip.
  • FIG.3 Another variant of the invention with Klammerbe ⁇ consolidation.
  • FIG. 4 shows a second embodiment according to the invention with attachment by pins.
  • FIG 5 shows a third embodiment according to the invention with Be ⁇ fastening by screws.
  • FIG. 1 shows a known embodiment of a motor pump unit 1.
  • An electric motor 15 drives two connecting rods 4 via an eccentric drive 5, which transmit the movement to two membrane units 2 arranged opposite one another.
  • the connecting rods 4 sin multi-part running with a head 17 which is molded onto a shaft 16 made of metal.
  • the head 17 is friction welded to the membrane unit 2.
  • FIG. 2 shows a first inventively optimized connecting rod ⁇ rod membrane unit in the assembled state and in section ⁇ presentation , as well as the individual parts of the connecting rod 4 and the fastener 6.
  • the fastening element 6 for fixing the membrane unit 2 on the connecting rod 4 is here as formed a spring clip.
  • the membrane unit 2 is formed in two parts with an elastic membrane 3 made of an elastomeric material, which is attached to a rigid membrane holder 11.
  • the membrane unit 2 is placed on the connecting rod 4.
  • two guides 18 are laterally provided outside, in which a spring clip 6 is attached transversely to the longitudinal axis L and thus the membrane unit 2 engages resiliently.
  • the connecting rod 4 has notches 7, one of which forms an undercut with the spring clip 6 in the mounted state and thereby locks the membrane unit 2 on the connecting rod 4.
  • the formed on the spring clip 6 claws 12 prevent after assembly accidental slipping back of the spring clip 6, but allow their non-destructive disassembly.
  • the spring clip is made of a wire
  • an embodiment of a metal strip is also permitted within the invention.
  • the membrane unit 2 can also be designed in one piece from an elastomeric material within the invention. In this case, in the region of the connecting rod 4, a greater material thickness or higher Shore hardness is needed to achieve a higher rigidity.
  • FIG. 3 shows a further possibility of locking by means of spring clip 6.
  • the connecting rod 4 has here instead of notches on a breakthrough 13.
  • an inward-pointing projection 16 of the spring element 6 engages in the opening 13 and thus forms the rear section.
  • the claws 12 can be dispensed with, because the undercut takes over their function.
  • FIG. 4 shows a further embodiment of the invention is shown in FIG.
  • the fastening element 6 is designed pin-shaped.
  • the connecting rod 4 and the membrane unit 2 have openings 8,9, which in each case are aligned in the assembled state. Through the openings 8,9 4 two pin-shaped fastening elements 6 are inserted transversely to the longitudinal axis L after attaching the membrane unit 2 to the connecting rod.
  • the openings 8.9 are designed as bores with defined tolerances, whereby a reproducible clamping between the fastening elements 6 and the membrane unit 2 or connecting rod 4 is favored.
  • FIG. 5 shows another embodiment of the invention provides that the fastener 6 as a screw, preferably Machine screw is executed.
  • the screws 6 are inserted transversely to the longitudinal axis L through the openings 8,9 and screwed ver ⁇ . They can cooperate in different developments either as shown with threaded nuts 10 or be screwed directly into the material of the membrane unit 2, so that the thread is formed directly in the opening 9.
  • the membrane unit 2 as in Fig. 4, the connecting rod 4 engage around from both sides and the thread in the openings 8 of the connecting rod 4 may be provided.

Abstract

The invention relates to a motor-driven pump assembly (1) for the negative pressure supply of a pneumatic brake booster, wherein the motor-driven pump assembly (1) is designed as a diaphragm pump, preferably a double diaphragm pump, with at least one diaphragm unit (2) having an elastomeric diaphragm (3), and the diaphragm unit (2) is moved by means of a connecting rod (4) by an eccentric drive (5) driven by electric motor. In order to optimize the force-transmitting connection between the eccentric drive and the diaphragm (3) in terms of costs and process, it is proposed according to the invention that the diaphragm unit (2) is secured on the connecting rod (4) by means of a fastening element (6) which is inserted transversely with respect to a longitudinal axis (L) of the connecting rod (4).

Description

Motorpumpenaggregat mit einer Membraneinheit. Motor pump unit with a membrane unit.
Die Erfindung betrifft ein Motorpumpenaggregat zur Unter¬ druckversorgung eines pneumatischen Bremskraftverstärkers insbesondere für eine hydraulische PKW-Bremsanlage. Bei modernen Kraftfahrzeugen mit pneumatischen Bremskraftverstärkern werden oft gesonderte Motorpumpenaggregate zur Erzeugung vom erfor¬ derlichen Unterdruck verwendet. The invention relates to a motor pump unit for under ¬ pressure supply of a pneumatic brake booster, in particular for a hydraulic car brake system. In modern motor vehicles with pneumatic brake boosters separate motor pump units are often used to generate the neces ¬ sary vacuum.
Darunter sind Motorpumpenaggregate bekannt, die als Doppelmembranpumpen mit zwei gegenüberliegenden elastomeren Membranen ausgeführt sind. Die Membranen werden von einem Elektromotor angetrieben, dabei wird die rotatorische Bewegung der Motorachse durch einen Exzentertrieb in eine translatorische umgewandelt und mittels Pleuelstangen an die Membranen über- mittelt. Among them, motor pump units are known, which are designed as double diaphragm pumps with two opposite elastomeric membranes. The diaphragms are driven by an electric motor, where the rotational movement of the motor shaft is converted into a translational one by an eccentric drive and transmitted to the diaphragms by means of connecting rods.
Die flexible Membran ist dabei meist an einem starren Membranhalter aus Kunststoff befestigt. Dieser ist mittels Reibschweißverfahren oder durch Umspritzung mit einer oft mehrteiligen Pleuelstange verbunden. The flexible membrane is usually attached to a rigid membrane holder made of plastic. This is connected by Reibschweißverfahren or by encapsulation with an often multi-piece connecting rod.
Derartige Fertigungsverfahren sind jedoch mit hohen Material und Prozesskosten verbunden. However, such manufacturing processes are associated with high material and process costs.
Es stellt sich daher die Aufgabe, die kraftübertragende Ver¬ bindung zwischen dem Exzentertrieb und der Membran eines Motorpumpenaggregats dahingehend zu optimieren. Die Aufgabe wird erfindungsgemäß durch die Merkmalskombination nach dem unabhängigen Anspruch 1 gelöst. Unteransprüche geben weitere erfindungsgemäße Ausführungen und Weiterbildungen an. Therefore, it has as its object to optimize the force-transmitting Ver ¬ bond between the eccentric drive and the membrane of a motor pump unit to that effect. The object is achieved by the combination of features according to the independent claim 1. Subclaims specify further embodiments and refinements of the invention.
Erfindungsgemäß wird die Membraneinheit an der Pleuelstange mittels eines quer zur Längsachse der Pleuelstange gesteckten ist Befestigungselements fixiert. Hierdurch können potentiell fehleranfällige und kostenintensive Reibschweiß- und/oder Umspritzprozesse entfallen und durch robustere einfachere Verbindungen mit engen Toleranzen ersetzt werden. Durch den Verzicht auf spezielle thermische Fügeverfahren kann auf breitere Palette günstigerer Werkstoffe zurückgegriffen werden According to the invention, the membrane unit is fixed to the connecting rod by means of a fastening element which is inserted transversely to the longitudinal axis of the connecting rod. As a result, potentially error-prone and expensive Reibschweiß- and / or overmolding processes can be eliminated and by more robust easier Compounds with tight tolerances are replaced. By dispensing with special thermal joining methods can be used on a wider range of cheaper materials
Zudem kann die Pleuelstange wesentlich einfacher gestaltet und beispielsweise durch Stanzen herstellbar sein. In addition, the connecting rod can be much simpler designed and produced for example by punching.
Pro Motorpumpenaggregat werden dabei insgesamt weniger Pro¬ zessschritte benötigt, Prozesse werden vereinfacht, es gibt weniger Ausschuss und eine etwaige Demontage zur Nacharbeit oder fürs Recycling wird ebenfalls erheblich vereinfacht. Das Befestigungselement kann besonders einfach und kostengünstig als eine einfache Federklammer ausgebildet sein, die die Membraneinheit im Bereich der Pleuelstange umklammert und gleichzeitig zur Arretierung einen Hinterschnitt einer Einkerbung oder einem Durchbruch der Pleuelstange bildet. Sowohl Montage als auch Demontage gestalten sich dadurch besonders einfach . Per motor pump unit while overall less per ¬ zessschritte required processes are simplified, there is less waste and any disassembly for reprocessing or for recycling is also greatly simplified. The fastener may be particularly simple and inexpensive formed as a simple spring clip, which clasps the membrane unit in the region of the connecting rod and at the same time forms an undercut of a notch or an opening of the connecting rod for locking. Both assembly and disassembly are therefore particularly easy.
In einer weiteren vorteilhaften erfindungsgemäßen Ausführung kann das Befestigungselement stiftförmig ausgebildet und in fluchtenden Öffnungen in der Membraneinheit und der Pleuelstange angeordnet sein. Hierdurch kann eine besonders robuste und steife Verbindung mit günstigen Normteilen realisiert werden. Dabei könne sowohl einfache Stifte als auch Federstifte und Passstifte verwendet werden, die entweder durch Klemmkraft gehalten oder auch eingeklebt sein können. In einer anderen Ausführung kann das Befestigungselement als eine Schraube ausgebildet sein, die entweder mit einer gesonderten Gewindemutter zusammenwirkt oder direkt in dem Werkstoff von der Membraneinheit oder der Pleuelstange eingeschraubt ist. In a further advantageous embodiment of the invention, the fastening element may be formed pin-shaped and arranged in aligned openings in the membrane unit and the connecting rod. This allows a particularly robust and rigid connection can be realized with cheap standard parts. Both simple pins and spring pins and dowel pins can be used, which can either be held by clamping force or glued. In another embodiment, the fastener may be formed as a screw, which either cooperates with a separate nut or is screwed directly into the material of the membrane unit or the connecting rod.
Je nach konkretem Bedarf kann die erfindungsgemäße Verbindung mit nur einem oder auch mehreren Befestigungselementen ausgeführt werden, womit bestimmte Faktoren wie Kosten, Gewicht oder Festigkeit gezielt priorisiert werden können. Depending on the specific need, the connection according to the invention can be carried out with only one or more fastening elements which allows certain factors such as cost, weight or strength to be prioritized.
Weitere Einzelheiten, Merkmale, Vorteile und Anwendungsmög¬ lichkeiten der Erfindung gehen aus Unteransprüchen zusammen mit der Beschreibung und anhand der Figuren hervor. Übereinstimmende Komponenten und Konstruktionselemente werden nach Möglichkeit mit gleichen Bezugszeichen versehen. Other objects, advantages and Anwendungsmög ¬ possibilities of the invention are apparent from dependent claims, along with the description and the figures produced. Matching components and construction elements will be given the same reference numbers if possible.
Auf detaillierte Beschreibung von Grundfunktionen eines gattungsgemäßen Motorpumpenaggregats wird dabei weitgehend ver- ziehtet, da ausreichend bekannt.  On detailed description of basic functions of a generic motor pump unit is largely forgiven, as sufficiently known.
Nachstehend zeigt:  Below shows:
Fig.l eine bekannte Ausführung eines gattungsgemäßen Motorpumpenaggregats .  Fig.l a known embodiment of a generic motor pump unit.
Fig.2 eine erste erfindungsgemäße Ausführungsform der Befes- tigung von Membran an der Pleuelstange mittels einer Federklammer . 2 shows a first embodiment according to the invention of the attachment of membrane to the connecting rod by means of a spring clip.
Fig.3 Eine weitere erfindungsgemäße Variante mit Klammerbe¬ festigung . Fig.3 Another variant of the invention with Klammerbe ¬ consolidation.
Fig.4 Eine zweite erfindungsgemäße Ausführungsform mit Be- festigung durch Stifte. 4 shows a second embodiment according to the invention with attachment by pins.
Fig.5 Eine dritte erfindungsgemäße Ausführungsform mit Be¬ festigung durch Schrauben. 5 shows a third embodiment according to the invention with Be ¬ fastening by screws.
Fig.1 :  Fig.1:
Fig. 1 zeigt eine bekannte Ausführung eines Motorpumpenag- gregats 1. Ein Elektromotor 15 treibt über einen Exzentertrieb 5 zwei Pleuelstangen 4 an, welche die Bewegung an zwei gegenüberliegend angeordneten Membraneinheiten 2 übermitteln. Die Pleuelstangen 4 sin mehrteilig ausgeführt mit einem Kopf 17, der an einen Schaft 16 aus Metall angespritzt ist. Der Kopf 17 ist reibverschweißt mit der Membraneinheit 2. FIG. 1 shows a known embodiment of a motor pump unit 1. An electric motor 15 drives two connecting rods 4 via an eccentric drive 5, which transmit the movement to two membrane units 2 arranged opposite one another. The connecting rods 4 sin multi-part running with a head 17 which is molded onto a shaft 16 made of metal. The head 17 is friction welded to the membrane unit 2.
Fig.2: Fig. 2 zeigt eine erste erfindungsgemäß optimierte Pleuel¬ stangen-Membraneinheit im montierten Zustand und in Schnitt¬ darstellung, sowie die Einzelteildarstellungen der Pleuelstange 4 und des Befestigungselements 6. Das Befestigungs- element 6 zur Fixierung der Membraneinheit 2 auf der Pleuelstange 4 ist hier als eine Federklammer ausgebildet. Figure 2: Fig. 2 shows a first inventively optimized connecting rod ¬ rod membrane unit in the assembled state and in section ¬ presentation , as well as the individual parts of the connecting rod 4 and the fastener 6. The fastening element 6 for fixing the membrane unit 2 on the connecting rod 4 is here as formed a spring clip.
In der gezeigten Ausführung ist die Membraneinheit 2 zweiteilig ausgebildet mit einer elastischen Membran 3 aus einem Elastomerwerkstoff, welche an einem steifen Membranhalter 11 befestigt ist. Die Membraneinheit 2 wird auf die Pleuelstange 4 aufgesetzt. In der Membraneinheit 2 sind seitlich außen zwei Führungen 18 vorgesehen, in die eine Federklammer 6 quer zur Längsachse L aufgesteckt wird und so die Membraneinheit 2 federnd umgreift. Die Pleuelstange 4 verfügt über Einkerbun- gen 7, von denen eine mit der Federklammer 6 im montierten Zustand einen Hinterschitt bildet und dadurch die Membraneinheit 2 auf der Pleuelstange 4 arretiert. Die an der Federklammer 6 ausgebildeten Krallen 12 verhindern nach der Montage eine ungewolltes Zurückrutschen der Federklammer 6, lassen jedoch deren zerstörungsfreie Demontage zu. In the embodiment shown, the membrane unit 2 is formed in two parts with an elastic membrane 3 made of an elastomeric material, which is attached to a rigid membrane holder 11. The membrane unit 2 is placed on the connecting rod 4. In the membrane unit 2, two guides 18 are laterally provided outside, in which a spring clip 6 is attached transversely to the longitudinal axis L and thus the membrane unit 2 engages resiliently. The connecting rod 4 has notches 7, one of which forms an undercut with the spring clip 6 in the mounted state and thereby locks the membrane unit 2 on the connecting rod 4. The formed on the spring clip 6 claws 12 prevent after assembly accidental slipping back of the spring clip 6, but allow their non-destructive disassembly.
Durch eine Spiegelsymmetrische Ausführung der Pleuelstange 4 kann diese beidseitig verwendet werden. Through a mirror-symmetrical design of the connecting rod 4, this can be used on both sides.
In der gezeigten Ausführung ist die federklammer aus einem Draht gefertigt, eine Ausführung aus einem Metallband ist innerhalb der Erfindung ebenfalls zulässig.  In the embodiment shown, the spring clip is made of a wire, an embodiment of a metal strip is also permitted within the invention.
Durch eine geeignete Formgebung oder Materialmix mit verschiedenen Shorehärtegraden kann die Membraneinheit 2 innerhalb der Erfindung auch einteilig aus einem elastomeren Werkstoff gestaltet sein. Dabei wird im Bereich der Pleuelstange 4 eine größere Materialstärke oder höhere Shorehärte zum Erzielen einer höheren Steifigkeit benötigt.  By means of a suitable shaping or material mix with different Shore hardness grades, the membrane unit 2 can also be designed in one piece from an elastomeric material within the invention. In this case, in the region of the connecting rod 4, a greater material thickness or higher Shore hardness is needed to achieve a higher rigidity.
Fig.3: In der Figur 3 ist eine weitere Möglichkeit der Arretierung mittels Federklammer 6 dargestellt. Die Pleuelstange 4 weist hier statt Einkerbungen einen Durchbruch 13 auf. Im montierten Zustand greift ein nach innen weisender Vorsprung 16 des Fe- derelements 6 in den Durchbruch 13 ein und bildet so den Hinterschitt . Bei dieser Ausführung kann sogar auf die Krallen 12 verzichtet werden, weil der Hinterschnitt deren Funktion mit übernimmt . Figure 3: FIG. 3 shows a further possibility of locking by means of spring clip 6. The connecting rod 4 has here instead of notches on a breakthrough 13. In the mounted state, an inward-pointing projection 16 of the spring element 6 engages in the opening 13 and thus forms the rear section. In this embodiment, even the claws 12 can be dispensed with, because the undercut takes over their function.
Fig.4 : In der Figur 4 ist eine weitere erfindungsgemäße Ausführungsform dargestellt. Im Unterschied zu der vorstehend beschriebenen Ausführung ist das Befestigungselement 6 stiftförmig gestaltet.  4 shows a further embodiment of the invention is shown in FIG. In contrast to the embodiment described above, the fastening element 6 is designed pin-shaped.
Die Pleuelstange 4 und die Membraneinheit 2 verfügen über Öffnungen 8,9, die im montierten Zustand j eweils fluchten. Durch die Öffnungen 8,9 werden nach dem Aufstecken der Membraneinheit 2 auf die Pleuelstange 4 zwei stiftförmige Befestigungselemente 6 quer zur Längsachse L gesteckt. The connecting rod 4 and the membrane unit 2 have openings 8,9, which in each case are aligned in the assembled state. Through the openings 8,9 4 two pin-shaped fastening elements 6 are inserted transversely to the longitudinal axis L after attaching the membrane unit 2 to the connecting rod.
Bevorzugt, jedoch nicht notwendigerweise sind die Öffnungen 8,9 als Bohrungen mit definierten Toleranzen gestaltet, womit eine reproduzierbare Klemmung zwischen den Befestigungselementen 6 und der Membraneinheit 2 bzw. Pleuelstange 4 begünstigt wird.Preferably, but not necessarily, the openings 8.9 are designed as bores with defined tolerances, whereby a reproducible clamping between the fastening elements 6 and the membrane unit 2 or connecting rod 4 is favored.
Innerhalb der Erfindung ist es ebenfalls möglich, die Arretierung mit lediglich einem einzigen, statt mit zwei Stiften 6 zu realisieren . Zur Realisierung der beschriebenen Ausführung eignen sich grundsätzlich sowohl Feder- oder Passstifte, die alleine durch Klemmkraft in den Öffnungen 8,9 gehalten werden, als auch einfache Stifte, die in die Öffnungen 8,9 eingeklebt werden.Within the invention it is also possible to realize the locking with only a single, instead of two pins 6. To realize the described embodiment are basically both spring or dowel pins that are held alone by clamping force in the openings 8,9, as well as simple pins that are glued into the openings 8,9.
Fig.5 : Eine weitere erfindungsgemäße Ausführungsform sieht vor, dass das Befestigungselement 6 als eine Schraube, Vorzugsweise Maschinenschraube ausgeführt ist. Die Schrauben 6 werden quer zur Längsachse L durch die Öffnungen 8,9 gesteckt und ver¬ schraubt. Dabei können sie in unterschiedlichen Weiterbildungen entweder wie gezeigt mit Gewindemuttern 10 zusammenwirken oder direkt in den Werkstoff der Membraneinheit 2 eingeschraubt werden, so dass das Gewinde direkt in der Öffnung 9 ausgebildet ist . 5 shows another embodiment of the invention provides that the fastener 6 as a screw, preferably Machine screw is executed. The screws 6 are inserted transversely to the longitudinal axis L through the openings 8,9 and screwed ver ¬ . They can cooperate in different developments either as shown with threaded nuts 10 or be screwed directly into the material of the membrane unit 2, so that the thread is formed directly in the opening 9.
In einer weiteren, nicht gezeigten erfindungsgemäßen Ausführungsform kann die Membraneinheit 2 ähnlich wie in der Fig. 4 die Pleuelstange 4 von beiden Seiten umgreifen und das Gewinde in den Öffnungen 8 der Pleuelstange 4 vorgesehen sein. In another, not shown embodiment of the invention, the membrane unit 2, as in Fig. 4, the connecting rod 4 engage around from both sides and the thread in the openings 8 of the connecting rod 4 may be provided.
Bezugs zeichen : Reference sign:
1 Motorpumpenaggregat 1 motor pump unit
2 Membraneinheit 2 membrane unit
3 Membran  3 membrane
4 Pleuelstange  4 connecting rod
5 Exzentertrieb  5 eccentric drive
6 Befestigungselements 6 fastener
7 Einkerbung 7 notch
8 Öffnung  8 opening
9 Öffnung  9 opening
10 Gewindemutter  10 threaded nut
11 Membranhalter  11 membrane holder
12 Kralle  12 claw
13 Durchbruch  13 breakthrough
14 Vorsprung  14 lead
15 Elektromotor  15 electric motor
16 Schaft  16 shaft
17 Kopf  17 head
18 Führung  18 leadership
L Längsachse  L longitudinal axis

Claims

Patentansprüche / Patent Claims Claims / Patent Claims
1. Motorpumpenaggregat (1) zur Unterdruckversorgung eines pneumatischen Bremskraftverstärkers, wobei das Motorpumpen- aggregat (1) als eine Membranpumpe, vorzugsweise eine Doppelmembranpumpe mit wenigstens einer Membraneinheit (2) mit einem elastomeren Membran (3) ausgebildet ist, die Membraneinheit (2) mittels einer Pleuelstange (4) von einem elektromotorisch angetriebenen Exzentertrieb (5) bewegt ist, dadurch gekennzeichnet, dass die Membraneinheit (2) an der Pleuelstange (4) mittels eines Befestigungselements (6) fixiert ist, der quer zu einer Längsachse (L) der Pleuelstange (4) gesteckt ist. 1. Motor pump unit (1) for the vacuum supply of a pneumatic brake booster, wherein the motor pump unit (1) as a diaphragm pump, preferably a double diaphragm pump with at least one membrane unit (2) is formed with an elastomeric membrane (3), the membrane unit (2) by means a connecting rod (4) by an electric motor driven eccentric drive (5) is moved, characterized in that the membrane unit (2) on the connecting rod (4) by means of a fastening element (6) is fixed, transverse to a longitudinal axis (L) of the connecting rod (4) is plugged.
2. Motorpumpenaggregat (1) nach Anspruch 1 dadurch gekenn- zeichnet, dass das Befestigungselement (6) als eine Federklammer ausgebildet ist, wobei die Federklammer die Membraneinheit (2) im Bereich der Pleuelstange (4) umklammert und mit wenigstens einer Einkerbung (7) oder einem Durchbruch (13) der Pleuelstange (4) einen Hinterschnitt bildet. 2. Motorpumpenaggregat (1) according to claim 1 characterized in that the fastening element (6) is designed as a spring clip, wherein the spring clip, the membrane unit (2) in the region of the connecting rod (4) clasps and with at least one notch (7). or an opening (13) of the connecting rod (4) forms an undercut.
3. Motorpumpenaggregat (1) nach Anspruch 1 dadurch gekennzeichnet, dass das Befestigungselement (6) stiftförmig aus¬ gebildet und in fluchtenden Öffnungen (8,9) in der Membraneinheit (2) und der Pleuelstange (4) angeordnet ist. 3. Motor pump unit (1) according to claim 1, characterized in that the fastening element (6) pin-shaped from ¬ formed and in aligned openings (8,9) in the membrane unit (2) and the connecting rod (4) is arranged.
4. Motorpumpenaggregat (1) nach Anspruch 3 dadurch gekenn- zeichnet, dass das Befestigungselement (6) durch Klemmkraft fixiert ist. 4. motor pump unit (1) according to claim 3 characterized marked, that the fastening element (6) is fixed by clamping force.
5. Motorpumpenaggregat (1) nach Anspruch 3 dadurch gekennzeichnet, dass das Befestigungselement (6) geklebt ist. 5. Motor pump unit (1) according to claim 3, characterized in that the fastening element (6) is glued.
6. Motorpumpenaggregat (1) nach Anspruch 1 dadurch gekenn- zeichnet, dass das Befestigungselement (6) als eine Schraube ausgebildet ist. 6. Motor pump unit (1) according to claim 1 characterized marked characterized in that the fastening element (6) is designed as a screw.
7. Motorpumpenaggregat (1) nach Anspruch 6 dadurch gekennzeichnet, dass das Befestigungselement (6) mit einer Gewin¬ demutter (10) zusammenwirkt. 7. Motor pump unit (1) according to claim 6, characterized in that the fastening element (6) with a threaded ¬ derutter (10) cooperates.
8. Motorpumpenaggregat (1) nach Anspruch 6 dadurch gekenn- zeichnet, dass das Befestigungselement (6) unmittelbar in die8. motor pump unit (1) according to claim 6 characterized in that the fastening element (6) directly into the
Membraneinheit (2) eingeschraubt ist. Membrane unit (2) is screwed.
9. Motorpumpenaggregat (1) nach Anspruch 1 dadurch gekennzeichnet, dass die Membraneinheit (2) eine elastische Memb¬ ran (3) aus einem Elastomerwerkstoff und einen starren Membranhalter (11) aufweist, der zur Kraftübermittlung zwischen der Pleuelstange (4) und dem Membran (3) vorgesehen ist. 9. Motorpumpenaggregat (1) according to claim 1, characterized in that the membrane unit (2) has an elastic Memb ¬ ran (3) made of an elastomeric material and a rigid membrane holder (11) for transmitting power between the connecting rod (4) and the membrane (3) is provided.
10. Motorpumpenaggregat (1) nach Anspruch 9 dadurch gekennzeichnet, dass das Befestigungselement (6) mit dem Membranhalter (11) und der Pleuelstange (4) zusammenwirkt. 10. Motor pump unit (1) according to claim 9, characterized in that the fastening element (6) with the membrane holder (11) and the connecting rod (4) cooperates.
11. Motorpumpenaggregat (1) nach Anspruch 1 dadurch gekennzeichnet, dass zumindest zwei Befestigungselemente (6) vor¬ gesehen sind. 11. Motor pump unit (1) according to claim 1, characterized in that at least two fastening elements (6) are seen before ¬ .
PCT/EP2016/055554 2015-03-20 2016-03-15 Motor-driven pump assembly with a diaphragm unit WO2016150762A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102015205060.2 2015-03-20
DE102015205060.2A DE102015205060A1 (en) 2015-03-20 2015-03-20 Motor pump unit with a membrane unit

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019113033A1 (en) * 2017-12-05 2019-06-13 Medela Holding Ag Diaphragm assembly including puller with retaining ledge

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2102957A1 (en) * 1971-01-22 1972-08-03 A. Pierburg Autogerätebau KG, 4040 Neuß pump
US3947156A (en) * 1972-03-08 1976-03-30 Erich Becker Diaphragm pump, particularly for the generation of vacuum
WO2013113902A1 (en) * 2012-02-01 2013-08-08 Continental Teves Ag & Co. Ohg Pump unit driven by an electric motor

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7513345U (en) * 1974-05-16 1975-09-04 Becker E DIAPHRAGM PUMP
EP2058517B1 (en) * 2007-11-07 2010-09-08 Idromeccanica Bertolini S.p.A. Pump

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2102957A1 (en) * 1971-01-22 1972-08-03 A. Pierburg Autogerätebau KG, 4040 Neuß pump
US3947156A (en) * 1972-03-08 1976-03-30 Erich Becker Diaphragm pump, particularly for the generation of vacuum
WO2013113902A1 (en) * 2012-02-01 2013-08-08 Continental Teves Ag & Co. Ohg Pump unit driven by an electric motor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019113033A1 (en) * 2017-12-05 2019-06-13 Medela Holding Ag Diaphragm assembly including puller with retaining ledge

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