DE102020203634A1 - Positive displacement pump and method of making a positive displacement pump - Google Patents
Positive displacement pump and method of making a positive displacement pump Download PDFInfo
- Publication number
- DE102020203634A1 DE102020203634A1 DE102020203634.9A DE102020203634A DE102020203634A1 DE 102020203634 A1 DE102020203634 A1 DE 102020203634A1 DE 102020203634 A DE102020203634 A DE 102020203634A DE 102020203634 A1 DE102020203634 A1 DE 102020203634A1
- Authority
- DE
- Germany
- Prior art keywords
- displacement pump
- positive displacement
- rotor
- cam ring
- control plates
- 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.)
- Pending
Links
- 238000006073 displacement reaction Methods 0.000 title claims abstract description 16
- 238000004519 manufacturing process Methods 0.000 title claims description 5
- 238000005266 casting Methods 0.000 claims abstract description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 5
- 229910052782 aluminium Inorganic materials 0.000 claims description 5
- 238000004512 die casting Methods 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 239000012530 fluid Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 229910001208 Crucible steel Inorganic materials 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
- F01C21/00—Component parts, details or accessories not provided for in groups F01C1/00 - F01C20/00
- F01C21/10—Outer members for co-operation with rotary pistons; Casings
- F01C21/104—Stators; Members defining the outer boundaries of the working chamber
- F01C21/108—Stators; Members defining the outer boundaries of the working chamber with an axial surface, e.g. side plates
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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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D19/00—Casting in, on, or around objects which form part of the product
- B22D19/02—Casting in, on, or around objects which form part of the product for making reinforced articles
-
- 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
- F04C14/00—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations
-
- 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
- F04C2/00—Rotary-piston machines or pumps
- F04C2/30—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
- F04C2/34—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members
- F04C2/344—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
-
- 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
- F04C2230/00—Manufacture
- F04C2230/20—Manufacture essentially without removing material
- F04C2230/21—Manufacture essentially without removing material by casting
-
- 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
- F04C2230/00—Manufacture
- F04C2230/90—Improving properties of machine parts
-
- 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
- F04C2270/00—Control; Monitoring or safety arrangements
- F04C2270/12—Vibration
Abstract
Verdrängerpumpe, insbesondere Flügelzellenpumpe, für ein Kraftfahrzeug, umfassend einem Rotor (5), wobei in der Umfangsfläche des Rotors (5) über dessen Breite im Wesentlichen radial verlaufende Schlitze angeordnet sind, in denen radial verschiebbare Flügel geführt sind; einem Kurvenring (3), wobei der Rotor (5) in dem Kurvenring (3) rotiert; und wobei der Kurvenring (3) von je einer Seite mit einer ein Gehäuse bildenden Stirnplatte (6) und mit einer Steuerplatte (8) abgeschlossen ist; wobei die Stirn- und Steuerplatten (6, 8) durch ein Gussverfahren hergestellt wurden; und wobei die Stirn- und/oder Steuerplatten (6) Einlegeteile (7a, 7b) enthalten, welche einen Verschleiß an den Stirn- und Steuerplatten (6, 8) an bestimmten Punkten minimieren.Positive displacement pump, in particular vane pump, for a motor vehicle, comprising a rotor (5), wherein in the circumferential surface of the rotor (5) are arranged over the width thereof substantially radially extending slots in which radially displaceable vanes are guided; a cam ring (3), the rotor (5) rotating in the cam ring (3); and wherein the cam ring (3) is closed on one side with an end plate (6) forming a housing and with a control plate (8); wherein the face and control plates (6, 8) were produced by a casting process; and wherein the end and / or control plates (6) contain inserts (7a, 7b) which minimize wear on the end and control plates (6, 8) at certain points.
Description
Die vorliegende Erfindung betrifft eine Verdrängerpumpe, insbesondere eine Flügelzellenpumpe zur Förderung eines Fluides für einen Verbraucher eines Kraftfahrzeuges. Die Erfindung betrifft des Weiteren ein Verfahren zum Herstellen einer Verdrängerpumpe, insbesondere Flügelzellenpumpe.The present invention relates to a positive displacement pump, in particular a vane pump for delivering a fluid for a consumer of a motor vehicle. The invention also relates to a method for producing a positive displacement pump, in particular a vane pump.
Stand der TechnikState of the art
Verdrängerpumpen für die Bereitstellung eines Druckmittelstroms eines Verbrauchers in einem Kraftfahrzeug sind bekannt. Sie sind beispielsweise als Flügelzellenpumpen gebildet, wobei ein Rotor in einem Kurvenring rotiert. Der Kurvenring ist von je einer Seite mit einer ein Gehäuse bildenden Stirnplatte und mit einer Steuerplatte abgeschlossen. Der Kurvenring besitzt eine zur Achse des Rotors nicht koaxial verlaufende Kontur und bildet einen Pumpenraum aus. In der Umfangsfläche des Rotors sind über dessen Breite im Wesentlichen radial verlaufende Schlitze angeordnet, in denen radial verschiebbare Flügel geführt sind. Bei einer Rotation des Rotors um seine Achse werden die Flügel an der Kontur des Kurvenrings entlanggeführt, wobei zwischen zwei benachbarten Flügeln jeweils Kammern mit sich veränderndem Volumen gebildet sind.Displacement pumps for providing a pressure medium flow to a consumer in a motor vehicle are known. They are designed as vane pumps, for example, with a rotor rotating in a cam ring. The cam ring is closed on one side with an end plate forming a housing and with a control plate. The cam ring has a contour that is not coaxial with the axis of the rotor and forms a pump chamber. Are in the circumferential surface of the rotor Arranged across the width thereof are essentially radially extending slots in which radially displaceable vanes are guided. When the rotor rotates about its axis, the blades are guided along the contour of the cam ring, with chambers with changing volumes being formed between two adjacent blades.
Die Stirn- und Steuerplatten werden heute meistens durch Aluminiumdruckguss hergestellt. Aluminium als Werkstoff wird zumeist aus Kostengründen verwendet, ist aber im Vergleich zu Stahl relativ weich. Dadurch neigt der Werkstoff zu erhöhtem Verschleiß, insbesondere bei Anwendungsfällen in Getrieben. Gerade bei der Verwendung von stark verschäumten Fluiden und bei speziellen Betriebszuständen innerhalb eines Getriebes kommt es teilweise zu erhöhtem Verschleiß bzw. Kavitation. Dies kann sich dann beispielsweise in Eingrabungen des Kurvenrings in die Funktionsflächen von den Stirn- und Steuerplatten zeigen, als auch sich als Kavitationsverschleiß darstellen.Today, the front and control plates are mostly made by die-casting aluminum. Aluminum is mostly used as a material for cost reasons, but it is relatively soft compared to steel. As a result, the material tends to be subject to increased wear, especially when used in gearboxes. Particularly when using heavily foamed fluids and in special operating conditions within a transmission, there is sometimes increased wear and / or cavitation. This can then manifest itself, for example, in the cam ring digging into the functional surfaces of the front and control plates, and it can also be represented as cavitation wear.
Alternativ können die Stirn- und Steuerplatten durch Stahlguss oder Sintern hergestellt werden. Dies ist aber wesentlich teurer und wirkt sich negativ auf das Gewicht der Pumpe aus. Zudem ist es bekannt, verschleißfeste Beschichtungen einzusetzen, welche aber nur beschränkt die Verschleißfestigkeit erhöhen und wiederum die Kosten erhöhen.Alternatively, the front and control plates can be made by cast steel or sintering. However, this is much more expensive and has a negative effect on the weight of the pump. In addition, it is known to use wear-resistant coatings which, however, only increase the wear resistance to a limited extent and in turn increase the costs.
Der Erfindung liegt somit die Aufgabe zugrunde, eine Verdrängerpumpe, insbesondere eine Flügelzellenpumpe zur Förderung eines Fluides für einen Verbraucher anzugeben, bei der der Verschleiß an den Stirn- und Steuerplatten minimiert wird, wobei die Verdrängerpumpe kostengünstig bleiben soll. Die vorliegende Erfindung schafft des Weiteren ein Verfahren zur Herstellung einer derartigen Verdrängerpumpe.The invention is therefore based on the object of specifying a displacement pump, in particular a vane pump for pumping a fluid for a consumer, in which the wear on the front and control plates is minimized, the displacement pump should remain inexpensive. The present invention also provides a method for manufacturing such a positive displacement pump.
Die Aufgabe wird durch eine Verdrängerpumpe, insbesondere Flügelzellenpumpe, mit den Merkmalen des Patentanspruchs 1 gelöst. Des Weiteren wird die Aufgabe mit einem Verfahren zur Herstellung der Verdrängerpumpe mit den Merkmalen des Patentanspruchs 2 gelöst.The object is achieved by a positive displacement pump, in particular a vane pump, with the features of claim 1. Furthermore, the object is achieved with a method for producing the positive displacement pump with the features of
An den Stirn- und Steuerplatten kommt es immer an bestimmten Stellen zu erhöhtem Verschleiß. Um diese Stellen besonders zu schützen, werden erfindungsgemäß beim Gussvorgang verschleißfeste Einlegeteile in der Gussform positioniert. Zum Gießen der Stirn- und Steuerplatten wird üblicherweise ein Aluminium-Druckgussverfahren angewendet. Die Bauteile werden gegossen. Abschließend wird der Abguss entfernt.There is always increased wear at certain points on the front and control plates. According to the invention, wear-resistant inserts are positioned in the casting mold during the casting process in order to particularly protect these points. An aluminum die-casting process is usually used to cast the front and control plates. The components are cast. Finally, the cast is removed.
Die Einlegeteile können beispielsweise zylindrische oder quaderförmige Bauteile aus Stahl sein.The inserts can, for example, be cylindrical or cuboid components made of steel.
Ein Ausführungsbeispiel wird anhand der Figuren beschrieben. Dabei zeigen:
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1 den Aufbau einer Flügelzellenpumpe -
2 eine erfindungsgemäße Stirnplatte einer Flügelzellenpumpe -
3 einen Querschnitt durch die erfindungsgemäße Stirnplatte
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1 the structure of a vane pump -
2 an inventive end plate of a vane pump -
3 a cross section through the end plate according to the invention
Die Verdrängerpumpe ist als Flügelzellenpumpe ausgebildet. In der
In der
In der
Claims (3)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102020203634.9A DE102020203634A1 (en) | 2020-03-20 | 2020-03-20 | Positive displacement pump and method of making a positive displacement pump |
CN202110296510.8A CN113494448A (en) | 2020-03-20 | 2021-03-19 | Positive displacement pump and method for producing a positive displacement pump |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102020203634.9A DE102020203634A1 (en) | 2020-03-20 | 2020-03-20 | Positive displacement pump and method of making a positive displacement pump |
Publications (1)
Publication Number | Publication Date |
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DE102020203634A1 true DE102020203634A1 (en) | 2021-09-23 |
Family
ID=77552535
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102020203634.9A Pending DE102020203634A1 (en) | 2020-03-20 | 2020-03-20 | Positive displacement pump and method of making a positive displacement pump |
Country Status (2)
Country | Link |
---|---|
CN (1) | CN113494448A (en) |
DE (1) | DE102020203634A1 (en) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE29802297U1 (en) | 1998-02-11 | 1998-04-16 | Roland Man Druckmasch | Brushless DC motor |
DE102006025532B4 (en) | 2006-06-01 | 2013-03-07 | Zf Lenksysteme Gmbh | Adjustable positive displacement pump |
EP2630707B1 (en) | 2010-10-22 | 2015-03-11 | Dehn + Söhne GmbH + Co. KG | Spark gap having a plurality of series-connected individual spark gaps, which are located in a stack arrangement |
DE102007061011B4 (en) | 2007-12-18 | 2018-05-09 | Valeo Systèmes d'Essuyage | Electromotive auxiliary drive, for example windscreen wiper drive |
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2020
- 2020-03-20 DE DE102020203634.9A patent/DE102020203634A1/en active Pending
-
2021
- 2021-03-19 CN CN202110296510.8A patent/CN113494448A/en active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE29802297U1 (en) | 1998-02-11 | 1998-04-16 | Roland Man Druckmasch | Brushless DC motor |
DE102006025532B4 (en) | 2006-06-01 | 2013-03-07 | Zf Lenksysteme Gmbh | Adjustable positive displacement pump |
DE102007061011B4 (en) | 2007-12-18 | 2018-05-09 | Valeo Systèmes d'Essuyage | Electromotive auxiliary drive, for example windscreen wiper drive |
EP2630707B1 (en) | 2010-10-22 | 2015-03-11 | Dehn + Söhne GmbH + Co. KG | Spark gap having a plurality of series-connected individual spark gaps, which are located in a stack arrangement |
Also Published As
Publication number | Publication date |
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CN113494448A (en) | 2021-10-12 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
R163 | Identified publications notified | ||
R082 | Change of representative |
Representative=s name: LORENZ & KOLLEGEN PATENTANWAELTE PARTNERSCHAFT, DE |
|
R081 | Change of applicant/patentee |
Owner name: PUMP TECHNOLOGY SOLUTIONS PS GMBH, DE Free format text: FORMER OWNER: ROBERT BOSCH GESELLSCHAFT MIT BESCHRAENKTER HAFTUNG, 70469 STUTTGART, DE |