DE102012104804A1 - Displacement pump e.g. two-stroke vane pump, for conveying pressurized medium to gear box of motor vehicle, has side walls closed at groove bottom, where spacing of side walls from each other are enlarged over diameters of position pins - Google Patents
Displacement pump e.g. two-stroke vane pump, for conveying pressurized medium to gear box of motor vehicle, has side walls closed at groove bottom, where spacing of side walls from each other are enlarged over diameters of position pins Download PDFInfo
- Publication number
- DE102012104804A1 DE102012104804A1 DE201210104804 DE102012104804A DE102012104804A1 DE 102012104804 A1 DE102012104804 A1 DE 102012104804A1 DE 201210104804 DE201210104804 DE 201210104804 DE 102012104804 A DE102012104804 A DE 102012104804A DE 102012104804 A1 DE102012104804 A1 DE 102012104804A1
- Authority
- DE
- Germany
- Prior art keywords
- side walls
- cam ring
- displacement pump
- rotor
- axial grooves
- 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
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Classifications
-
- 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
- F01C21/106—Stators; Members defining the outer boundaries of the working chamber with a radial surface, e.g. cam rings
-
- 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
- F04C14/18—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by varying the volume of the working chamber
- F04C14/22—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by varying the volume of the working chamber by changing the eccentricity between cooperating members
- F04C14/223—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by varying the volume of the working chamber by changing the eccentricity between cooperating members using a movable cam
-
- 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
- F04C2/3446—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 the inner and outer member being in contact along more than one line or surface
Abstract
Description
Die Erfindung betrifft eine Verdrängerpumpe zum Fördern von Druckmittel zu einem Verbraucher, insbesondere zweihubige Flügelzellen- oder Rollenzellenpumpe für ein Getriebe eines Kraftfahrzeugs. The invention relates to a positive displacement pump for conveying pressure medium to a consumer, in particular two-stroke vane or roller cell pump for a transmission of a motor vehicle.
Flügelzellen- oder Rollenzellenpumpen sind beispielsweise aus der
Eine Verdrängerpumpe weist ein Pumpenpaket mit einem Rotor, einem Kurvenring und mehreren Arbeitsschiebern, z. B. Flügel oder Rollen, auf, wobei einzelne Arbeitskammern gebildet werden. An beiden Stirnseiten bzw. in axialer Richtung ist der Rotor durch Steuerplatten begrenzt. Auf einer Seite kann die Steuerplatte auch in einem Deckel der Verdrängerpumpe integriert bzw. durch den Deckel gebildet sein. A positive displacement pump has a pump package with a rotor, a cam ring and a plurality of working slides, z. As wings or rollers on, with individual working chambers are formed. At both end faces or in the axial direction of the rotor is limited by control plates. On one side, the control plate can also be integrated in a cover of the positive displacement pump or formed by the cover.
Wenn die Verdrängerpumpe in eine napfförmige Vertiefung in ein Gehäuse, z. B. eines Getriebes eines Kraftfahrzeuges, eingeschoben wird, so wird der Kurvenring im Allgemeinen mit zwei Positionierungsstiften zum Deckel, der zumeist gleichzeitig als Steuerplatte ausgebildet ist, und der gegenüberliegenden Steuerplatte fixiert. Hierzu sind die Positionierungsstifte durch Axialnuten im äußeren Umfang des Kurvenringes geschoben und in Bohrungen der Steuerplatten gesteckt. Durch die Positionierungsstifte wird eine Mittenzentrierung und eine Fixierung der Drehlage (Winkellage) des Kurvenringes, sowie eine Drehmomentübertragung bzw. Abstützung vom Kurvenring über die Positionierungsstifte zum Deckel bzw. zum Gehäuse erreicht. If the positive displacement pump in a cup-shaped recess in a housing, for. B. a transmission of a motor vehicle, is inserted, the cam ring is generally fixed with two positioning pins to the lid, which is usually formed simultaneously as a control plate, and the opposite control plate. For this purpose, the positioning pins are pushed by axial grooves in the outer circumference of the cam ring and inserted into holes of the control plates. By the positioning pins centering and fixing the rotational position (angular position) of the cam ring, as well as a torque transmission or support from the cam ring on the positioning pins to the lid or to the housing is achieved.
Nachteilig bei den bekannten Lösungen ist, dass der Kurvenring zu den Positionierungsstiften ein radiales Spiel besitzt. Dieses Spiel lässt einen asymmetrischen Radialversatz des Kurvenringes zu. Dies führt unter anderem zu Geräuschen. Die Positionierungsstifte stützen dabei den Kurvenring radial auch nur bedingt ab, sodass der Kurvenring bei schwankendem Förderdruck radial "atmen" kann. Ein weiterer Nachteil besteht dabei darin, dass die auf diese Weise entstehenden Mikrobewegungen zu einem stirnseitigen Verschleiß des Deckels und der Steuerplatte führen können. A disadvantage of the known solutions is that the cam ring has a radial clearance to the positioning pins. This game allows an asymmetric radial offset of the cam ring. This leads among other things to noises. The positioning pins also support the cam ring radially only to a limited extent, so that the cam ring can "breathe" radially when the delivery pressure fluctuates. Another disadvantage is that the resulting micro-movements in this way can lead to a frontal wear of the lid and the control plate.
Der vorliegenden Erfindung liegt die Aufgabe zugrunde, die vorstehend genannten Nachteile zu vermeiden, insbesondere eine Positionierung des Kurvenringes zu den Steuerplatten zu schaffen, wobei kein radiales Spiel entstehen kann. The present invention has for its object to avoid the disadvantages mentioned above, in particular to provide a positioning of the cam ring to the control plates, wherein no radial play can occur.
Erfindungsgemäß wird diese Aufgabe durch die im kennzeichnenden Teil von Anspruch 1 genannten Merkmale gelöst. According to the invention this object is achieved by the features mentioned in the characterizing part of
Durch die erfindungsgemäße Ausgestaltung der Axialnuten entsteht eine Art Rampenfunktion. Durch das Drehmoment bzw. der daraus entstehenden Umfangskräfte wird versucht den Kurvenring zu verdrehen. Durch die erfindungsgemäße Ausbildung der Axialnuten können die Positionierungsstifte, wenn sie sich an die Seitenwände der Axialnuten anlegen, entsprechend rampenartig bzw. in Form einer Keilwirkung an den Seitenwänden "hochwandern". Auf diese Weise wird zum einen der Kurvenring zentrisch spielfrei fixiert und zum anderen leitet er Radialkräfte in die Positionierungsstifte ein, wodurch eine exakte radiale Abstützung am Deckel bzw. Gehäuse entsteht, die weitgehend Mikrobewegungen verhindert. Damit wird auch ein stirnseitiger Verschleiß an dem Deckel und an der Steuerplatte vermieden. The inventive design of the axial grooves creates a kind of ramp function. Through the torque or the resulting circumferential forces is trying to twist the cam ring. The inventive design of the axial grooves, the positioning pins, if they invest in the side walls of the axial grooves, corresponding ramp-like or in the form of a wedge effect on the side walls "high walk". In this way, on the one hand, the cam ring is fixed centric clearance and on the other it introduces radial forces in the positioning pins, creating an exact radial support on the lid or housing is formed, which largely prevents micromotion. This also prevents frontal wear on the cover and on the control plate.
Wenn, wie es häufig der Fall ist, der Kurvenring und der Deckel nebst Steuerplatte aus unterschiedlichen Materialien hergestellt sind, wird auf diese Weise gleichzeitig auch eine Kompensation von unterschiedlichen Wärmeausdehnungen erreicht. If, as is often the case, the cam ring and the cover together with the control plate are made of different materials, a compensation of different thermal expansions is achieved in this way at the same time.
Um die erfindungsgemäße Rampenfunktion für die Positionierungsstifte zu erreichen, sind verschiedene Lösungen möglich. In einfacher Weise können die Axialnuten hierzu im Querschnitt gesehen wenigstens annähernd halbkreisförmig ausgebildet sein, wobei deren Radien größer sind als die Radien der Positionierungsstifte. Auf diese Weise erfolgt ein kontinuierlicher Übergang vom Nutgrund zu den Seitenwänden. In order to achieve the ramp function according to the invention for the positioning pins, various solutions are possible. In a simple manner, the axial grooves can be designed to be at least approximately semicircular in cross-section, their radii being larger than the radii of the positioning pins. In this way, there is a continuous transition from the bottom of the groove to the side walls.
Eine weitere Lösung kann darin bestehen, dass sich an die Abrundungen in dem Nutgrund Seitenwände in Keilform anschließen, die sich ebenfalls über die Durchmesser der Positionierungsstifte hinaus erweitern. Hierzu kann der Nutgrund jeweils teilkreisförmig abgerundet sein mit entsprechend glatten Übergängen zu den Seitenwänden. In ähnlicher Weise ist es jedoch auch möglich, dass der Nutgrund jeweils flach ausgebildet ist mit seitlichen Abrundungen zu den sich nach oben zu erweiternden Seitenwänden. Another solution may be that connect to the rounded portions in the groove bottom sidewalls in a wedge shape, which also extend beyond the diameter of the positioning pins addition. For this purpose, the groove base can be rounded in each case part-circular shape with correspondingly smooth transitions to the side walls. In a similar manner, however, it is also possible that the groove bottom is formed in each case flat with lateral rounding to the side walls to be flared upwards.
In einfacher Weise wird man die Axialnuten so ausbilden, dass im Querschnitt gesehen jeweils im äußeren, dem Umfang des Kurvenringes zugewandten Abschnitt parallele Seitenwände vorhanden sind, deren Abstand damit ebenfalls voneinander größer ist als die Durchmesser der in die Axialnuten eingelegten Positionierungsstifte. In a simple way, the axial grooves are formed so that seen in cross section in each case in the outer, the circumference of the cam ring facing portion parallel side walls are present whose distance is thus also greater from each other than the diameter of the inserted into the axial positioning pins.
Vorteilhafte Weiterbildungen und Ausgestaltungen ergeben sich aus den nachfolgend anhand der Zeichnung prinzipmäßig beschriebenen Ausführungsbeispielen. Advantageous developments and refinements emerge from the embodiments described in principle below with reference to the drawing.
Es zeigt: It shows:
Nachfolgend wird die Erfindung anhand einer zweihubigen Flügelzellenpumpe erläutert. Selbstverständlich kann die Erfindung jedoch auch für eine Rollenzellenpumpe genutzt werden. The invention will be explained with reference to a two-stroke vane pump. Of course, however, the invention can also be used for a roller-cell pump.
Flügelzellenpumpen sind allgemein bekannt. Hierzu wird beispielsweise auf die eingangs erwähnten Schutzrechte verwiesen, weshalb nachfolgend nur auf die für die Erfindung wesentlichen Teile näher eingegangen wird. Vane pumps are well known. For this purpose, for example, reference is made to the aforementioned patents, which is why below only in detail for the invention essential parts.
Eine Flügelzellenpumpe
Die Flügelzellenpumpe
Der Kurvenring
Aus den
Die
Bei Betrieb der Flügelzellenpumpe haben die Positionierungsstifte
In den
Wie aus der
Anstelle einer Ausbildung des Nutgrundes
BezugszeichenlisteLIST OF REFERENCE NUMBERS
- 1 1
- Flügelzellenpumpe Vane pump
- 2 2
- Antriebswelle drive shaft
- 3 3
- Rotor rotor
- 4 4
- Kurvenring cam ring
- 5 5
- Arbeitsschieber working slide
- 6 6
- Steuerplatte control plate
- 7 7
- Steuerplatte control plate
- 8 8th
- Deckel cover
- 9 9
- Dichtung poetry
- 10 10
- Getriebe transmission
- 11 11
- Positionierungsstift positioning pin
- 12 12
- Axialnut axial groove
- 13 13
- Bohrung drilling
- 14 14
- Bohrung drilling
- 15a, b15a, b
- Seitenwände side walls
- 16 16
- Nutgrund groove base
- 17a, b17a, b
- Anlagestelle contact point
ZITATE ENTHALTEN IN DER BESCHREIBUNG QUOTES INCLUDE IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- DE 19909963 B4 [0002] DE 19909963 B4 [0002]
- DE 102006052996 A1 [0002] DE 102006052996 A1 [0002]
- DE 10229809 A1 [0002] DE 10229809 A1 [0002]
Claims (5)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE201210104804 DE102012104804A1 (en) | 2012-06-04 | 2012-06-04 | Displacement pump e.g. two-stroke vane pump, for conveying pressurized medium to gear box of motor vehicle, has side walls closed at groove bottom, where spacing of side walls from each other are enlarged over diameters of position pins |
CN201310215704.6A CN103511251B (en) | 2012-06-04 | 2013-06-03 | Positive displacement pump |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE201210104804 DE102012104804A1 (en) | 2012-06-04 | 2012-06-04 | Displacement pump e.g. two-stroke vane pump, for conveying pressurized medium to gear box of motor vehicle, has side walls closed at groove bottom, where spacing of side walls from each other are enlarged over diameters of position pins |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102012104804A1 true DE102012104804A1 (en) | 2013-12-05 |
Family
ID=49579290
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE201210104804 Pending DE102012104804A1 (en) | 2012-06-04 | 2012-06-04 | Displacement pump e.g. two-stroke vane pump, for conveying pressurized medium to gear box of motor vehicle, has side walls closed at groove bottom, where spacing of side walls from each other are enlarged over diameters of position pins |
Country Status (2)
Country | Link |
---|---|
CN (1) | CN103511251B (en) |
DE (1) | DE102012104804A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2016180570A1 (en) * | 2015-05-13 | 2016-11-17 | Robert Bosch Automotive Steering Gmbh | Displacement pump, method for operating a displacement pump, steering system, and gearing |
DE102015115587A1 (en) * | 2015-09-16 | 2017-03-16 | Robert Bosch Automotive Steering Gmbh | DISPLACEMENT PUMP, METHOD FOR OPERATING A DISPLACEMENT PUMP, STEERING SYSTEM AND TRANSMISSION |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105822543B (en) * | 2016-06-02 | 2018-03-06 | 李钢 | A kind of vane pump of rotor radial dynamic balance |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10229809A1 (en) | 2002-07-03 | 2004-01-15 | Zf Lenksysteme Gmbh | Vane pump |
DE10346095A1 (en) * | 2003-10-04 | 2005-04-21 | Zf Lenksysteme Gmbh | Vane cell pump has transverse part guided in cast long bore guides at right angles to peripheral direction |
DE19909963B4 (en) | 1999-03-06 | 2006-12-21 | Zf Friedrichshafen Ag | displacement |
DE102006052996A1 (en) | 2006-11-10 | 2008-05-15 | Zf Lenksysteme Gmbh | Vane pump for steering unit of motor vehicle, has housing, outer ring and front plate centered to shaft, where front plate is provided with shaft hub that is provided with outlet for leakage oil |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0518371A (en) * | 1991-07-10 | 1993-01-26 | Kayaba Ind Co Ltd | Vane pump device |
JP3482060B2 (en) * | 1995-12-27 | 2003-12-22 | カヤバ工業株式会社 | Vane pump and method of assembling vane pump |
JP2003214361A (en) * | 2002-01-28 | 2003-07-30 | Kayaba Ind Co Ltd | Vane pump |
JPWO2005005837A1 (en) * | 2003-07-09 | 2006-08-24 | ユニシア ジェーケーシー ステアリングシステム株式会社 | Vane pump |
JP5204739B2 (en) * | 2009-10-19 | 2013-06-05 | カヤバ工業株式会社 | Vane pump |
CN102297131A (en) * | 2011-07-08 | 2011-12-28 | 兰州理工大学 | Port plate and hydraulic pump equipped with it |
-
2012
- 2012-06-04 DE DE201210104804 patent/DE102012104804A1/en active Pending
-
2013
- 2013-06-03 CN CN201310215704.6A patent/CN103511251B/en active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19909963B4 (en) | 1999-03-06 | 2006-12-21 | Zf Friedrichshafen Ag | displacement |
DE10229809A1 (en) | 2002-07-03 | 2004-01-15 | Zf Lenksysteme Gmbh | Vane pump |
DE10346095A1 (en) * | 2003-10-04 | 2005-04-21 | Zf Lenksysteme Gmbh | Vane cell pump has transverse part guided in cast long bore guides at right angles to peripheral direction |
DE102006052996A1 (en) | 2006-11-10 | 2008-05-15 | Zf Lenksysteme Gmbh | Vane pump for steering unit of motor vehicle, has housing, outer ring and front plate centered to shaft, where front plate is provided with shaft hub that is provided with outlet for leakage oil |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2016180570A1 (en) * | 2015-05-13 | 2016-11-17 | Robert Bosch Automotive Steering Gmbh | Displacement pump, method for operating a displacement pump, steering system, and gearing |
DE102015115587A1 (en) * | 2015-09-16 | 2017-03-16 | Robert Bosch Automotive Steering Gmbh | DISPLACEMENT PUMP, METHOD FOR OPERATING A DISPLACEMENT PUMP, STEERING SYSTEM AND TRANSMISSION |
Also Published As
Publication number | Publication date |
---|---|
CN103511251B (en) | 2017-03-08 |
CN103511251A (en) | 2014-01-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
R163 | Identified publications notified | ||
R081 | Change of applicant/patentee |
Owner name: ROBERT BOSCH AUTOMOTIVE STEERING GMBH, DE Free format text: FORMER OWNER: ZF LENKSYSTEME GMBH, 73527 SCHWAEBISCH GMUEND, DE Effective date: 20150423 |
|
R012 | Request for examination validly filed | ||
R081 | Change of applicant/patentee |
Owner name: PUMP TECHNOLOGY SOLUTIONS PS GMBH, DE Free format text: FORMER OWNER: ROBERT BOSCH AUTOMOTIVE STEERING GMBH, 73527 SCHWAEBISCH GMUEND, DE Owner name: ROBERT BOSCH GMBH, DE Free format text: FORMER OWNER: ROBERT BOSCH AUTOMOTIVE STEERING GMBH, 73527 SCHWAEBISCH GMUEND, DE |
|
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 GMBH, 70469 STUTTGART, DE |
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R016 | Response to examination communication |