EP0088811B1 - Sliding vane pump, particularly for power steering - Google Patents

Sliding vane pump, particularly for power steering Download PDF

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Publication number
EP0088811B1
EP0088811B1 EP19820102063 EP82102063A EP0088811B1 EP 0088811 B1 EP0088811 B1 EP 0088811B1 EP 19820102063 EP19820102063 EP 19820102063 EP 82102063 A EP82102063 A EP 82102063A EP 0088811 B1 EP0088811 B1 EP 0088811B1
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EP
European Patent Office
Prior art keywords
pump
housing
feed
shaft
vane pump
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.)
Expired
Application number
EP19820102063
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German (de)
French (fr)
Other versions
EP0088811A1 (en
Inventor
Heinz Krüger
Heinz Teubner
Rolf Ing. Grad. Tegtmeyer
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.)
Cessione luk Fahrzeug - Hidraulik & Co KG GmbH
Original Assignee
Vickers Systems 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 Vickers Systems GmbH filed Critical Vickers Systems GmbH
Priority to DE8282102063T priority Critical patent/DE3265002D1/en
Priority to EP19820102063 priority patent/EP0088811B1/en
Priority to JP3934583A priority patent/JPS58167891A/en
Publication of EP0088811A1 publication Critical patent/EP0088811A1/en
Application granted granted Critical
Publication of EP0088811B1 publication Critical patent/EP0088811B1/en
Priority to JP5866791U priority patent/JPH04111583U/en
Expired legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00

Definitions

  • the invention relates to a vane pump with the features of the preamble of claim 1.
  • Vane pumps are available in different types and sizes, with a different housing being used for each type and size. If it is possible to use the same components for different pump types and sizes at least in part, significant cost savings can be achieved.
  • the invention is therefore based on the object of creating a series of vane pumps which results from the replacement of assemblies from a basic type and covers a wide range of applications.
  • directly driven pumps ie pumps driven in the axial direction of the shaft
  • indirectly driven pumps ie pumps driven axially parallel, e.g. by V-belts or gear ratios
  • pumps equipped with additives e.g. with additional ones
  • Radial piston pump furthermore with flanged tank or remote tank as well as with different delivery volumes, whereby the various components can be used in different pump types.
  • the larger number of components and in particular the housing parts that can be achieved as a result means that a cost reduction for the individual pump can be expected.
  • the vane pump (Fig. 1) has three main assemblies, namely the actual pump 1, the drive 2 and the hydraulic fluid supply 3. Each of these assemblies is housed in a separate housing part, namely in a main housing part 10, a shaft bearing housing 20 and one Supply housing part 30.
  • the vane pump has an axis 4-4, and perpendicular to this extends a radial outer sealing surface 11 of the main housing part 10 and a further radial outer sealing surface 21 of the shaft bearing housing 20.
  • a further, axially parallel outer sealing surface 12 is attached to the housing main part 10 that cooperates with an axially parallel, outer sealing surface 31 of the feed housing part 30.
  • An annular recess 22 is provided in the sealing surface 21, in which a sealing ring 23 is inserted.
  • an annular recess 32 for receiving an annular seal 33 is provided in the sealing surface 31.
  • the main housing part 10 has interior spaces 13 and 14 which are arranged axially concentrically and merge into one another.
  • An assembly is used in the interior 13, which includes a cam ring 15, a rotor 16 and a pressure plate 17.
  • a flow control valve 18 is accommodated, which possibly also houses a pressure relief valve (not shown) in its interior.
  • the main housing part still has channels for supplying and discharging the hydraulic fluid, of which only parts of the supply channels 19 are indicated, which extend to the right and left of the flow control valve 18 and open into knee-shaped channels, not shown, which lead to the inlet openings of the working spaces of the pump to lead.
  • EP-A-0 068 035 belonging to the prior art under Article 54 (3) EPC, shows the details of the ducting.
  • the shaft bearing housing 20 has a stepped bore 24 for receiving a bearing 25 and a shaft seal 26.
  • a shaft 27 has claws 28 at one end and serration (not shown) at the other end, which engages in a corresponding recess in the rotor 16 in order to drive it.
  • a fastening flange 29 can be provided on the housing 20 in order to fasten the vane pump as a whole.
  • the claws 28 are used to engage in a shaft that extends along the axis 4-4 and can, for example, belong to a compressor mutually aligned waves are referred to as direct drives. Since the shaft 27 is practically not subject to any bending forces due to such a direct drive, only one bearing point 25 is required.
  • Fig. 2 shows a shaft bearing housing 40 for indirect drive of the shaft 41, which carries a pulley 42 at its outer end and can be driven via a V-belt.
  • the drive is possible via a sprocket and chain or via gears.
  • the shaft 41 is subject to a bending moment, which is why two bearings 44 and 45 are provided.
  • the radial outer sealing surface 21 corresponds to FIG. 1 and therefore need not be described in more detail.
  • Kid-shaped or arc-shaped grooves 46 and 47 Arranged within the annular groove 22 are kidney-shaped or arc-shaped grooves 46 and 47, which have to do in a known manner with the supply and discharge of the hydraulic fluid and are therefore provided in all embodiments of the shaft bearing housing.
  • FIG. 3 shows a further exemplary embodiment of a shaft bearing housing 50.
  • This consists of two parts 51 and 52, which enclose a shaft 53 with an eccentric 54.
  • a series of bores 55 which are closed by screw covers 56, lead to the eccentric 54.
  • In each bore 55 there is a hollow bore piston for receiving a spring which is supported on the cover 56.
  • supply and discharge channels (not shown) are also provided, in which non-return valves are seated, one of which is shown at 57.
  • the arrangement forms a radial piston pump known per se, which is used in particular for level control of a vehicle.
  • FIG. 4 shows a further embodiment of a main housing part 10 ', which differs from the embodiment according to FIG. 1 only by a larger axial extension of the interior 13'. It is understood that the cam ring 15 'and the rotor 16' are made correspondingly wider, while the pressure plate 17 and the flow control valve 18 can be taken over unchanged.
  • the feed housing part 30 is designed as a tank housing for the standard volume.
  • a storage space 34 and a filter space 35 are provided, to which the return of the hydraulic circuit, not shown, leads.
  • a screw hole 36 is used to attach the filter, not shown.
  • Fig. 5 shows the tank housing 30 seen from below. Within the axially parallel outer sealing surface 31, two screw holes 37 and a passage 38 can be seen. The holes 37 are used to fasten the tank housing 30 to the housing main part 10 by means of screws. The passage 38 leads to the two drilled feed channels 19, which are arranged at a certain parallel distance from one another.
  • the standard tank is designed asymmetrically to the passage 38. It is understood that the asymmetry can be modified depending on the requirements and that symmetrical tanks are also possible. If tanks with increased volume are desired, a larger projection and height of the storage area 34 is selected. Die-cast aluminum, plastic or sheet metal can be used as the material of the tank walls.
  • an adapter 60 (FIG. 6) is provided as the feed housing part.
  • the adapter 60 has a feed screw connection 61 which leads to the passage 38.
  • the underside of the adapter corresponds to the sealing surface 31 shown in FIG. 5.
  • sealing surfaces 12, 31 can also run obliquely to the axial direction 4-4.
  • the sealing surfaces 12, 31 have moved radially away from the pump axis and, viewed in the axial direction, lie outside the area defined by the parallel boundary surfaces 16a, 16b of the rotor.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rotary Pumps (AREA)
  • Details And Applications Of Rotary Liquid Pumps (AREA)

Description

Die Erfindung bezieht sich auf eine Flügelzellenpumpe mit den Merkmalen des Oberbegriffs des Anspruchs 1.The invention relates to a vane pump with the features of the preamble of claim 1.

Bei einer bekannten Flügelzellenpumpe dieser Art (DE-B-1 104 344), jedoch mit einem sich in das Wellenlagergehäuse erstreckenden Zufuhrkanal, ist eine Dreiteilung des Gehäuses verwirklicht worden.In a known vane pump of this type (DE-B-1 104 344), but with a feed channel extending into the shaft bearing housing, the housing has been divided into three parts.

In einer weiteren Flügelzellenpumpe sind die Merkmale a) bis d) benutzt (GB-A-2 015 648). Der Zufuhrkanal ist oberhalb des Nockenrings angeordnet und mündet in einen Kanal, der diesen Nockenring ringförmig umgibt. Die ZufuhrkanalAbdichtflächen sind somit nicht von der Pumpenachse oder Welle weggerückt angeordnet. Unterschiedliche Formen und Größen von Gehäusehauptteile, Wellenlagergehäuse und Zufuhrgehäuse zum Aufbau unterschiedlicher Pumpengrößen und -typen sind nicht offenbart.Features a) to d) are used in another vane pump (GB-A-2 015 648). The feed channel is arranged above the cam ring and opens into a channel which surrounds this cam ring in a ring. The supply channel sealing surfaces are therefore not arranged so that they move away from the pump axis or shaft. Different shapes and sizes of main body parts, shaft bearing housings and feed housings for the construction of different pump sizes and types are not disclosed.

Das Zusammenflanschen von unterschiedlich großen Pumpen und Motoren ist an sich bekannt (GB-A-1 290 148), jedoch handelt es sich dabei nicht um das Zusammenbauen unterschiedlicher Formen und Größen von Baugruppen zum Aufbau unterschiedlicher Pumpengrößen und Typen.The flanging together of pumps and motors of different sizes is known per se (GB-A-1 290 148), but it is not a matter of assembling different shapes and sizes of assemblies to build up different pump sizes and types.

Flügelzellenpumpen gibt es in unterschiedlichen Typen und Baugrößen, wobei für jede Type und Baugröße jeweils ein unterschiedliches Gehäuse verwendet wird. Wenn es gelingt, ein und dieselben Bauteile für unterschiedliche Pumpentypen und Baugrößen wenigstens teilweise zu verwenden, können bedeutende Kosteneinsparungen erzielt werden.Vane pumps are available in different types and sizes, with a different housing being used for each type and size. If it is possible to use the same components for different pump types and sizes at least in part, significant cost savings can be achieved.

Der Erfindung liegt deshalb die Aufgabe zugrunde, eine Baureihe von Flügelzellenpumpen zu schaffen, die durch Austausch von Baugruppen aus einer Grundtype hervorgeht und einen weiten Anwendungsbereich abdeckt.The invention is therefore based on the object of creating a series of vane pumps which results from the replacement of assemblies from a basic type and covers a wide range of applications.

Die gestellte Aufgabe wird aufgrund der Maßnahmen des Anspruchs 1 gelöst. Die Unteransprüche beziehen sich auf Ausgestaltungen und Weiterbildungen der Erfindung.The task is solved on the basis of the measures of claim 1. The subclaims relate to refinements and developments of the invention.

Mit dem Erfindungskonzept lassen sich direkt angetriebene Pumpen (d. h. in Achsrichtung der Welle angetriebene Pumpen), indirekt angetriebene Pumpen (d. h. achsparallel angetriebene Pumpen, z. B. durch Keilriemen oder Zahnrad- übersetzungen), mit Zusätzen bestückte Pumpen (z. B. mit zusätzlicher Radialkolbenpumpe), ferner mit angeflanschtem Tank oder entfernt angeordnetem Tank sowie mit unterschiedlichen Fördervolumen zusammenstellen, wobei die diversen Bauteile in unterschiedlichen Pumpentypen verwendet werden können. Die dadurch erzielbaren größeren Stückzahlen der Bauteile und insbesondere der Gehäuseteile lassen eine Kostenreduzierung für die einzelne Pumpe erwarten.With the inventive concept, directly driven pumps (ie pumps driven in the axial direction of the shaft), indirectly driven pumps (ie pumps driven axially parallel, e.g. by V-belts or gear ratios), pumps equipped with additives (e.g. with additional ones) Radial piston pump), furthermore with flanged tank or remote tank as well as with different delivery volumes, whereby the various components can be used in different pump types. The larger number of components and in particular the housing parts that can be achieved as a result means that a cost reduction for the individual pump can be expected.

Ausführungsbeispiele der Erfindung werden anhand der Zeichnung beschrieben. Dabei zeigt

  • Fig. 1 eine direkt angetriebene Flügelzellenpumpe im Querschnitt,
  • Fig.2 ein Wellenlagergehäuse für eine indirekt angetriebene Flügelzellenpumpe,
  • Fig. 3 ein Wellenlagergehäuse mit zusätzlicher Radialkolbenpumpe,
  • Fig. 4 ein Gehäusehauptteil für eine Pumpe mit größerem Pumpenstrom,
  • Fig. ein Tankgehäuse von unten gesehen, und
  • Fig. 6 einen Adapter.
Embodiments of the invention are described with reference to the drawing. It shows
  • 1 is a directly driven vane pump in cross section,
  • 2 shows a shaft bearing housing for an indirectly driven vane pump,
  • 3 shows a shaft bearing housing with an additional radial piston pump,
  • 4 shows a main housing part for a pump with a larger pump current,
  • Fig. A tank housing seen from below, and
  • Fig. 6 shows an adapter.

Die Flügelzellenpumpe (Fig. 1) weist drei hauptsächliche Baugruppen auf, nämlich die eigentliche Pumpe 1, den Antrieb 2 und die hydraulische Flüssigkeitszufuhr 3. Jede dieser Baugruppen ist jeweils in einem gesonderten Gehäuseteil untergebracht, nämlich in einem Gehäusehauptteil 10, einem Wellenlagergehäuse 20 und einem Zufuhrgehäuseteil 30. Die Flügelzellenpumpe weist eine Achse 4-4 auf, und senkrecht zu dieser erstreckt sich eine radiale äußere Abdichtfläche 11 des Gehäusehauptteils 10 sowie eine weitere radiale äußere Abdichtfläche 21 des Wellenlagergehäuses 20. Am Gehäusehauptteil 10 ist eine weitere, achsparallele äußere Abdichtfläche 12 angebracht, die mit einer achsparallelen, äußeren Abdichtfläche 31 des Zufuhrgehäuseteils 30 kooperiert. In der Abdichtfläche 21 ist eine Ringaussparung 22 vorgesehen, in welcher ein Dichtring 23 eingelegt ist. In gleicher Weise ist in der Abdichtfläche 31 eine Ringaussparung 32 zur Aufnahme einer Ringdichtung 33 vorgesehen.The vane pump (Fig. 1) has three main assemblies, namely the actual pump 1, the drive 2 and the hydraulic fluid supply 3. Each of these assemblies is housed in a separate housing part, namely in a main housing part 10, a shaft bearing housing 20 and one Supply housing part 30. The vane pump has an axis 4-4, and perpendicular to this extends a radial outer sealing surface 11 of the main housing part 10 and a further radial outer sealing surface 21 of the shaft bearing housing 20. A further, axially parallel outer sealing surface 12 is attached to the housing main part 10 that cooperates with an axially parallel, outer sealing surface 31 of the feed housing part 30. An annular recess 22 is provided in the sealing surface 21, in which a sealing ring 23 is inserted. In the same way, an annular recess 32 for receiving an annular seal 33 is provided in the sealing surface 31.

Das Gehäusehauptteil 10 weist Innenräume 13 und 14 auf, die achskonzentrisch angeordnet sind und ineinander übergehen. Im Innenraum 13 ist eine Baugruppe eingesetzt, die einen Nockenring 15, einen Rotor 16 und eine Druckplatte 17 beinhaltet. Im Innenraum 14 ist ein Stromregelventil 18 untergebracht, welches in seinem Inneren gegebenenfalls noch ein nicht dargestelltes Druckbegrenzungsventil beherbergt. Das Gehäusehauptteil weist noch Kanäle zur Zu- und Abfuhr der Hydraulikflüssigkeit auf, von denen lediglich Teile der Zufuhrkanäle 19 angedeutet sind, welche sich rechts und links vom Stromregelventil 18 erstrecken und in nicht dargestellte, knieförmige Kanäle einmünden, die zu den Einlaßöffnungen der Arbeitsräume der Pumpe führen. (Die EP-A-0 068 035, gehörend zum Stand der Technik nach Artikel 54(3) EPÜ, zeigt die näheren Einzelheiten der Kanalführung.)The main housing part 10 has interior spaces 13 and 14 which are arranged axially concentrically and merge into one another. An assembly is used in the interior 13, which includes a cam ring 15, a rotor 16 and a pressure plate 17. In the interior 14, a flow control valve 18 is accommodated, which possibly also houses a pressure relief valve (not shown) in its interior. The main housing part still has channels for supplying and discharging the hydraulic fluid, of which only parts of the supply channels 19 are indicated, which extend to the right and left of the flow control valve 18 and open into knee-shaped channels, not shown, which lead to the inlet openings of the working spaces of the pump to lead. (EP-A-0 068 035, belonging to the prior art under Article 54 (3) EPC, shows the details of the ducting.)

Das Wellenlagergehäuse 20 weist eine Stufenbohrung 24 zur Aufnahme eines Lagers 25 sowie einer Wellendichtung 26 auf. Eine Welle 27 weist Klauen 28 an einem Ende und eine nicht dargestellte Kerbverzahnung am anderen Ende auf, die in eine entsprechende Aussparung des Rotors 16 eingreift, um diesen anzutreiben. Am Gehäuse 20 kann ein Befestigungsflansch 29 vorgesehen sein, um die Flügelzellenpumpe insgesamt zu befestigen. Die Klauen 28 dienen zum Eingriff in eine Welle, die sich entlang der Achse 4-4 erstreckt und beispielsweise einem Kompressor angehören kann Dieser Antrieb über zueinander fluchtende Wellen wird als direkter Antrieb bezeichnet. Da die Welle 27 durch einen solchen direkten Antrieb praktisch keinen Biegekräften unterliegt, wird nur die eine Lagerstelle 25 benötigt.The shaft bearing housing 20 has a stepped bore 24 for receiving a bearing 25 and a shaft seal 26. A shaft 27 has claws 28 at one end and serration (not shown) at the other end, which engages in a corresponding recess in the rotor 16 in order to drive it. A fastening flange 29 can be provided on the housing 20 in order to fasten the vane pump as a whole. The claws 28 are used to engage in a shaft that extends along the axis 4-4 and can, for example, belong to a compressor mutually aligned waves are referred to as direct drives. Since the shaft 27 is practically not subject to any bending forces due to such a direct drive, only one bearing point 25 is required.

Fig. 2 zeigt ein Wellenlagergehäuse 40 für indirekten Antrieb der Welle 41, die an ihrem äußeren Ende eine Riemenscheibe 42 trägt und über einen Keilriemen angetrieben werden kann. Als Alternative ist der Antrieb über ein Kettenzahnrad und Kette bzw. über Zahnräder möglich. Bei diesen Antriebsarten unterliegt die Welle 41 einem Biegemoment, weswegen zwei Lager 44 und 45 vorgesehen sind. Die radiale äußere Abdichtfläche 21 entspricht Fig. 1 und braucht deshalb nicht näher beschrieben zu werden. Innerhalb der Ringnut 22 sind nieren- oder bogenförmige Nuten 46 und 47 angeordnet, die in bekannter Weise mit der Zu- und Abfuhr der Hydraulikflüssigkeit zu tun haben und deshalb in sämtlichen Ausführungsformen des Wellenlagergehäuses vorgesehen sind.Fig. 2 shows a shaft bearing housing 40 for indirect drive of the shaft 41, which carries a pulley 42 at its outer end and can be driven via a V-belt. As an alternative, the drive is possible via a sprocket and chain or via gears. In these types of drives, the shaft 41 is subject to a bending moment, which is why two bearings 44 and 45 are provided. The radial outer sealing surface 21 corresponds to FIG. 1 and therefore need not be described in more detail. Arranged within the annular groove 22 are kidney-shaped or arc-shaped grooves 46 and 47, which have to do in a known manner with the supply and discharge of the hydraulic fluid and are therefore provided in all embodiments of the shaft bearing housing.

Fig. 3 zeigt ein weiteres Ausführungsbeispiel eines Wellenlagergehäuses 50. Dieses besteht aus zwei Teilen 51 und 52, welche eine Welle 53 mit Exzenter 54 umschließen. Zum Exzenter 54 führen eine Reihe von Bohrungen 55, die durch Schraubdeckel 56 verschlossen sind. In jeder Bohrung 55 befindet sich ein hohlgebohrter Kolben zur Aufnahme einer Feder, die sich am Dekkel 56 abstützt. In dem Gehäuseteil 51 sind ferner nicht dargestellte Zu- und Abführkanäle vorgesehen, in denen Rückschlagventile sitzen, von denen eines bei 57 dargestellt ist. Die Anordnung bildet eine an sich bekannte Radialkolbenpumpe, die insbesondere zur Niveauregulierung eines Fahrzeugs verwendet wird.3 shows a further exemplary embodiment of a shaft bearing housing 50. This consists of two parts 51 and 52, which enclose a shaft 53 with an eccentric 54. A series of bores 55, which are closed by screw covers 56, lead to the eccentric 54. In each bore 55 there is a hollow bore piston for receiving a spring which is supported on the cover 56. In the housing part 51, supply and discharge channels (not shown) are also provided, in which non-return valves are seated, one of which is shown at 57. The arrangement forms a radial piston pump known per se, which is used in particular for level control of a vehicle.

Fig. 4 zeigt eine weitere Ausführungsform eines Gehäusehauptteils 10', welches sich nur durch eine größere axiale Erstreckung des Innenraums 13' von der Ausführungsform nach Fig. 1 unterscheidet. Es versteht sich, daß der Nockenring 15' und der Rotor 16' entsprechend breiter ausgeführt sind, während die Andruckplatte 17 und das Stromregelventil 18 unverändert übernommen werden können. Die radiale äußere Andichtfläche 11 und die achsparallele äußere Abdichtfläche 12 entsprechend der Ausführungsform nach Fig. 1.FIG. 4 shows a further embodiment of a main housing part 10 ', which differs from the embodiment according to FIG. 1 only by a larger axial extension of the interior 13'. It is understood that the cam ring 15 'and the rotor 16' are made correspondingly wider, while the pressure plate 17 and the flow control valve 18 can be taken over unchanged. The radial outer sealing surface 11 and the axially parallel outer sealing surface 12 in accordance with the embodiment according to FIG. 1.

In Fig. 1 ist das Zufuhrgehäuseteil 30 als Tankgehäuse für das Standardvolumen ausgebildet. Es sind ein Vorratsraum 34 und ein Filterraum 35 vorgesehen, zu dem die nicht dargestellte Rückführung des Hydraulikstromkreises führt. Eine Schraubbohrung 36 dient zur Befestigung des nicht dargestellten Filters.In Fig. 1, the feed housing part 30 is designed as a tank housing for the standard volume. A storage space 34 and a filter space 35 are provided, to which the return of the hydraulic circuit, not shown, leads. A screw hole 36 is used to attach the filter, not shown.

Fig. 5 zeigt das Tankgehäuse 30 von unten gesehen. Innerhalb der achsparallelen äußeren Abdichtfläche 31 sind zwei Schraubbohrungen 37 und ein Durchlaß 38 zu erkennen. Die Bohrungen 37 dienen zur Befestigung des Tankgehäuses 30 mittels Schrauben am Gehäusehauptteil 10. Der Durchlaß 38 führt zu den beiden gebohrten Zuführkanälen 19, die in gewissem parallelem Abstand zueinander angeordnet sind.Fig. 5 shows the tank housing 30 seen from below. Within the axially parallel outer sealing surface 31, two screw holes 37 and a passage 38 can be seen. The holes 37 are used to fasten the tank housing 30 to the housing main part 10 by means of screws. The passage 38 leads to the two drilled feed channels 19, which are arranged at a certain parallel distance from one another.

Wie aus Fig. 1 und 5 ersichtlich, ist der Standardtank asymmetrisch zum Durchlaß 38 ausgebildet. Es versteht sich, daß je nach den Erfordernissen die Asymmetrie abgewandelt werden kann und daß auch symmetrische Tanks möglich sind. Wenn Tanks mit vergrößertem Volumen gewünscht werden, wird eine größere Ausladung und Höhe des Vorratsbereichs 34 gewählt. Als Material der Tankwände kommen Aluminiumdruckguß, Kunststoff oder Blech in Betracht.1 and 5, the standard tank is designed asymmetrically to the passage 38. It is understood that the asymmetry can be modified depending on the requirements and that symmetrical tanks are also possible. If tanks with increased volume are desired, a larger projection and height of the storage area 34 is selected. Die-cast aluminum, plastic or sheet metal can be used as the material of the tank walls.

Mitunter ist es erwünscht, Tank und Pumpe voneinander getrennt anzuordnen. Für diesen Fall ist ein Adapter 60 (Fig. 6) als Zufuhrgehäuseteil vorgesehen. Der Adapter 60 weist eine Zufuhrverschraubung 61 auf, die zum Durchlaß 38 führt. Die Unterseite des Adapters entspricht der in Fig. 5 dargestellten Abdichtfläche 31.Sometimes it is desirable to arrange the tank and pump separately. In this case, an adapter 60 (FIG. 6) is provided as the feed housing part. The adapter 60 has a feed screw connection 61 which leads to the passage 38. The underside of the adapter corresponds to the sealing surface 31 shown in FIG. 5.

Durch Abwandlung der Pumpenbaugruppe 1 lassen sich unterschiedliche Größen von Flügelzellenpumpen erstellen, wobei man im wesentlichen nur die axiale Länge des Nockenrings 15 und des Rotors 16 zu verändern braucht. Dies ist wegen der Zufuhr von Hydraulikflüssigkeit von beiden Seiten des Rotors ohne Inkaufnahme von Kavitation möglich. Durch Anflanschen von unterschiedlichen Antriebsbaugruppen 2 lassen sich so unterschiedliche Pumpentypen (für direkten Antrieb, indirekten Antrieb mit zusätzlicher Radialkolbenpumpe) erstellen. Die Typenreihe kann noch dadurch ausgeweitet werden, daß Form und Größe der Tankbaugruppe 3 variiert wird. Dadurch kann man sich den gegebenen Raumverhältnissen anpassen.By modifying the pump assembly 1, different sizes of vane pumps can be created, essentially only changing the axial length of the cam ring 15 and the rotor 16. This is possible due to the supply of hydraulic fluid from both sides of the rotor without having to accept cavitation. Different pump types (for direct drive, indirect drive with additional radial piston pump) can be created by flange-mounting different drive modules 2. The type series can be expanded by varying the shape and size of the tank assembly 3. This allows you to adapt to the given space.

Statt der achsparallelen Anordnung der äußeren Abdichtflächen 12, 31 können diese auch schräg zur Achsrichtung 4-4 verlaufen. In jedem Fall sind die Abdichtflächen 12, 31 in radialer Richtung von der Pumpenachse weggerückt und liegen, in axialer Richtung gesehen, außerhalb des durch die parallelen Grenzflächen 16a, 16b des Rotors definierten Bereiches.Instead of the axially parallel arrangement of the outer sealing surfaces 12, 31, these can also run obliquely to the axial direction 4-4. In any case, the sealing surfaces 12, 31 have moved radially away from the pump axis and, viewed in the axial direction, lie outside the area defined by the parallel boundary surfaces 16a, 16b of the rotor.

Claims (6)

1. Rotary vane pump, particularly for assisted steering, with a housing including feed channels (38, 19) and discharge channels, a cam ring (15), a rotor (16), a pressure plate (17), valve devices (18) and a shaft (27, 41, 53), and with the following features:
the housing is divided into
a) a main housing part (10, 10') with a pump-insert cavity (13) for receiving the cam ring, rotor and pressure plate, and with a valve-receiving space (14) arranged next to it in the axial direction, and also with a radial sealing surface (11) and a furtherfeed-channel sealing surface (12),
b) a shaft-bearing housing (20, 40, 50) with a radial sealing surface (21), and
c) a feed housing part (30, 60) with a further feed-channel sealing surface (31),
d) the radial outer sealing surfaces (11,21) and the further feed-channel sealing surfaces (12, 31) fitting one another and being pressed against one another, with gaskets (23, 33) interposed, when the parts are screwed together, characterised in that
e) different shapes and sizes of the main housing part (10, 10'), shaft-bearing housing (20, 40, 50) and feed housing (30, 60) are provided for the construction of different pump sizes and types,
f) the further feed-channel sealing surfaces (12, 31) are moved away from the pump axis in the radial direction and, as seen in the axial direction, are located outside the region defined by the parallel boundary surfaces (16a, 16b) of the rotor (16), that is to say the feed-channels (38, 19) sealed off by them extend next to the pump-insert cavity (13) up to both sides of the valve-receiving space (14) or of the valve devices (18) and then bend away in the direction of the inlet orifices of the working spaces of the pump.
2. Rotary vane pump according to claim 1, characterised in that the cavity (13, 13') of the main housing part (10, 10') is of varying length in the axial direction (4-4) for different pump sizes.
3. Rotary vane pump according to claim 1 or 2, characterised in that, for the construction of different pump types, different shaft-bearing housings (20, 40, 50) with one bearing means (25) and with two bearing means (44,45) are provided.
4. Rotary vane pump according to one of claims 1 to 3, characterised in that a two-part shaft-bearing housing (50) is provided for receiving an additional radial piston pump (54, 55, 56, 57).
5. Rotary vane pump according to one of claims 1 to 4, characterised in that the feed housing part is designed as an asymmetrical tank housing (30).
6. Rotary vane pump according to one of claims 1 to 4, characterised in that the feed housing part is designed as an adaptor (60) for a tank housing to be arranged at a distance.
EP19820102063 1982-03-13 1982-03-13 Sliding vane pump, particularly for power steering Expired EP0088811B1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
DE8282102063T DE3265002D1 (en) 1982-03-13 1982-03-13 Sliding vane pump, particularly for power steering
EP19820102063 EP0088811B1 (en) 1982-03-13 1982-03-13 Sliding vane pump, particularly for power steering
JP3934583A JPS58167891A (en) 1982-03-13 1983-03-11 Rotary vane pump
JP5866791U JPH04111583U (en) 1982-03-13 1991-07-25 rotating vane pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19820102063 EP0088811B1 (en) 1982-03-13 1982-03-13 Sliding vane pump, particularly for power steering

Publications (2)

Publication Number Publication Date
EP0088811A1 EP0088811A1 (en) 1983-09-21
EP0088811B1 true EP0088811B1 (en) 1985-07-31

Family

ID=8188915

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19820102063 Expired EP0088811B1 (en) 1982-03-13 1982-03-13 Sliding vane pump, particularly for power steering

Country Status (3)

Country Link
EP (1) EP0088811B1 (en)
JP (2) JPS58167891A (en)
DE (1) DE3265002D1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3935293A1 (en) * 1988-10-26 1990-05-03 Vickers Systems Gmbh Vane-type pump assembly - has tank containing hollow plastics insert held by pressure plate against housing

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007011056A1 (en) * 2007-03-07 2008-09-11 Zf Lenksysteme Gmbh Fluid-supply device for supplying a coolant in a motor vehicle for ventilator wheels for steering devices has a casing for holding a vane-cell pump linked via a drive shaft to a driving wheel driven on an axis of rotation

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1104344B (en) * 1955-09-19 1961-04-06 Gen Motors Corp Positive displacement pump with unchangeable delivery rate
DE1954682A1 (en) * 1969-10-30 1971-05-06 Linde Ag Hydrostatic machine
JPS54116708A (en) * 1978-03-02 1979-09-11 Toyoda Mach Works Ltd Oil pressure pump
JPS55160191A (en) * 1979-05-31 1980-12-12 Toyoda Mach Works Ltd Pump system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3935293A1 (en) * 1988-10-26 1990-05-03 Vickers Systems Gmbh Vane-type pump assembly - has tank containing hollow plastics insert held by pressure plate against housing

Also Published As

Publication number Publication date
JPS58167891A (en) 1983-10-04
EP0088811A1 (en) 1983-09-21
JPH04111583U (en) 1992-09-28
DE3265002D1 (en) 1985-09-05

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