DE102011056849A1 - Displacement pump i.e. vane pump, for power steering of motor car, has printed circuit boards arranged between control plates and rotor in addition to curve ring, and including through holes, which flush with supply kidneys and/or channel - Google Patents
Displacement pump i.e. vane pump, for power steering of motor car, has printed circuit boards arranged between control plates and rotor in addition to curve ring, and including through holes, which flush with supply kidneys and/or channel Download PDFInfo
- Publication number
- DE102011056849A1 DE102011056849A1 DE201110056849 DE102011056849A DE102011056849A1 DE 102011056849 A1 DE102011056849 A1 DE 102011056849A1 DE 201110056849 DE201110056849 DE 201110056849 DE 102011056849 A DE102011056849 A DE 102011056849A DE 102011056849 A1 DE102011056849 A1 DE 102011056849A1
- Authority
- DE
- Germany
- Prior art keywords
- displacement pump
- positive displacement
- rotor
- pump according
- holes
- 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.)
- Withdrawn
Links
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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
- F01C21/08—Rotary pistons
- F01C21/0809—Construction of vanes or vane holders
- F01C21/0818—Vane tracking; control therefor
- F01C21/0854—Vane tracking; control therefor by fluid means
- F01C21/0863—Vane tracking; control therefor by fluid means the fluid being the working fluid
-
- 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
-
- 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
- F04C15/06—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
-
- 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
- F04C2/3441—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 one line or continuous surface substantially parallel to the axis of rotation
- F04C2/3442—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 one line or continuous surface substantially parallel to the axis of rotation the surfaces of the inner and outer member, forming the working space, being surfaces of revolution
-
- 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
- F04C15/0057—Driving elements, brakes, couplings, transmission specially adapted for machines or pumps
- F04C15/0076—Fixing rotors on shafts, e.g. by clamping together hub and shaft
-
- 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
- F04C2230/10—Manufacture by removing material
- F04C2230/103—Manufacture by removing material using lasers
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rotary Pumps (AREA)
- Details And Applications Of Rotary Liquid Pumps (AREA)
Abstract
Description
Die Erfindung betrifft eine Verdrängerpumpe, insbesondere Flügelzellenpumpe für eine Hilfskraftlenkung eines Kraftfahrzeuges, nach dem Oberbegriff von Anspruch 1. The invention relates to a displacement pump, in particular vane pump for a power steering system of a motor vehicle, according to the preamble of
Verdrängerpumpen in Form von Flügelzellen- oder Rollenzellenpumpen oder Zahnradpumpen sind beispielsweise aus der
Bei Verdrängerpumpen dieser Art können jedoch im Zusammenhang mit Mikrobewegungen des Kurvenringes sogenannte Setzerscheinungen (Eingrabungen) in den Steuerplatten auftreten. Der Kurvenring steht im Betrieb unter axialer Spannung durch die beiden Steuerplatten, wobei durch die dazwischen liegende Spaltkonstitution Mikrobewegungen auftreten und es damit zu Setzerscheinungen kommen und das Stirnspiel eingeschränkt werden kann. Weiterhin besteht die Gefahr einer Kavitation bei hohen Drehzahlen, da die Füllung der Saugkammern in diesem Fall eventuell nicht immer ausreichend ist. Auf diese Weise kann ein sogenannter Kavitationsfraß entstehen. Dabei wird das Oberflächenmaterial durch die hohen mechanischen Beanspruchungen aufgrund der Kavitation in mikroskopisch kleinen Teilen deformiert. Nach einiger Zeit können dann aus der Oberfläche größere Partikel herausbrechen. In positive displacement pumps of this type, however, so-called settling phenomena (burial) can occur in the control plates in connection with micro-movements of the cam ring. The cam ring is in operation under axial tension by the two control plates, which occur through the intermediate gap structure micro-movements and thus come to settling and the frontal game can be limited. Furthermore, there is a risk of cavitation at high speeds, since the filling of the suction chambers may not always be sufficient in this case. In this way, a so-called Kavitationsfraß arise. The surface material is deformed by the high mechanical stresses due to cavitation in microscopic parts. After some time larger particles can break out of the surface.
Zur Vermeidung dieses Problems ist es bei der Verwendung von Aluminium als Material für die Steuerplatten bereits vorgeschlagen worden, das Aluminium entsprechend zu beschichten. Beschichtete Steuerplatten bieten jedoch ebenfalls nur einen eingeschränkten Schutz. Besser aber teurer ist Sinterstahl oder auch massiver Stahl als Material für die Steuerplatten oder zwischen Kurvenring und Steuerplatten eingebrachte dickere Scheiben aus Bronze. To avoid this problem, it has already been proposed in the use of aluminum as a material for the control plates to coat the aluminum accordingly. However, coated control plates also offer only limited protection. Better but more expensive is sintered steel or solid steel as a material for the control plates or thicker discs made of bronze introduced between cam ring and control plates.
Der vorliegenden Erfindung liegt die Aufgabe zugrunde, eine Lösung zu schaffen, die Beschädigungen an den Steuerplatten vermeidet und trotzdem kostengünstig ist. The present invention has for its object to provide a solution that avoids damage to the control plates and is still inexpensive.
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 zwischen dem Rotor nebst dem Kurvenring und der dazugehörigen Steuerplatte angeordnete Platine lassen sich die eingangs erwähnten Probleme vermeiden. Die Platine in Form eines dazwischen gelegten dünnen Plättchens kann materialmäßig so ausgebildet bzw. beschaffen sein, dass sie den gestellten Anforderungen entspricht und insbesondere Schäden durch Setzerscheinungen und/oder Kavitation vermeidet. Die dazugehörige Steuerplatte kann in diesem Fall dann aus einem einfacheren Material hergestellt werden, denn sie hat im Wesentlichen nur noch die Funktion einer Stützplatte. By arranged between the rotor together with the cam ring and the associated control board board can avoid the problems mentioned above. The board in the form of a thin plate placed therebetween can be materially designed or designed such that it meets the requirements and in particular avoids damage caused by settling phenomena and / or cavitation. The associated control plate can then be made of a simpler material in this case, because it has essentially only the function of a support plate.
Grundsätzlich werden gegenüber den bekannten Lösungen durch die Anordnung wenigstens einer Steuerplatte die eingangs genannten Probleme wenigstens teilweise vermieden, aber im Allgemeinen wird man zwischen beiden Steuerplatten einerseits und dem Rotor und dem Kurvenring andererseits jeweils eine Platine anordnen. Basically, the above-mentioned problems are at least partially avoided by the arrangement of at least one control plate over the known solutions, but generally one will arrange a board between both control plates on the one hand and the rotor and the cam ring on the other hand.
Die Platinen können aus den verschiedensten Materialien hergestellt werden. Wesentlich ist lediglich, dass sie genügend widerstandsfähig gegen Beschädigungen sind. Dies lässt sich auf kostengünstigere Weise erreichen, als wenn man beide Steuerplatten entsprechend widerstandsfähig ausbilden müsste. The boards can be made of a variety of materials. The only important thing is that they are sufficiently resistant to damage. This can be achieved in a cost effective manner, as if you had to train both control plates correspondingly resistant.
Eine Ausführungsform für die Platinen kann in einer Ausbildung als Stahlplatinen bestehen. Eine Möglichkeit hierzu ist ein kaltgewalztes Stahlblech als Vormaterial. An embodiment for the boards may be in a form of steel blanks. One possibility for this is a cold-rolled steel sheet as a starting material.
In einer sehr vorteilhaften Ausgestaltung der Erfindung wird man die Platine selbst mit ihren darin eingeformten Durchgangsbohrungen oder wenigstens die Durchgangsbohrungen durch Lasern herstellen. In a very advantageous embodiment of the invention will be the board itself with their molded through holes or at least the through holes produced by lasers.
Auf diese Weise kann die Platine praktisch in einem Arbeitsgang ohne jede weitere Nachbearbeitung hergestellt werden. Im Unterschied zu den bekannten Herstellungsverfahren treten beim Lasern keine Verformungen auf, die durch eine Nachbearbeitung ausgeglichen werden müssten. In this way, the board can be produced practically in one operation without any further post-processing. In contrast to the known production processes, no deformations occur during the laser, which would have to be compensated by a post-processing.
Ein weiterer Vorteil durch die erfindungsgemäße Steuerplatte besteht darin, dass Steuerkanten in den Durchgangsbohrungen für die Versorgungsnieren bei deren Herstellung miteingebracht werden können. Beim Stand der Technik sind in den Versorgungsnieren Steuerkerben eingeformt, über die die Umsteuerung des Druckmediums stattfindet. Bringt man in einer erfindungsgemäßen Ausgestaltung die Steuerkanten in eine wenigstens annähernden Dreieckform in die Platine ein bzw. schneidet diese Form aus, so können Steuerkerben in den Steuerplatten entfallen. Another advantage of the control plate according to the invention is that control edges can be incorporated in the through holes for the supply kidneys in their manufacture. In the prior art, control notches are formed in the supply kidneys, via which the reversal of the pressure medium takes place. In an embodiment according to the invention, the control edges are brought into an at least approximate one Triangular shape in the board or cuts out this form, so control notches in the control plates can be omitted.
Auf der Seite des Kurvenringes, auf der der Hinterflügelkanal in die Steuerplatte eingebracht ist, ist die Platine mit einer umlaufenden Lochfolge von Durchgangsbohrungen versehen. Über diese umlaufende bzw. in Ringform angeordnete Lochfolge erfolgt die Verbindung zu dem Hinterflügelkanal. On the side of the cam ring, on which the Hinterflügelkanal is introduced into the control plate, the board is provided with a circumferential hole sequence of through holes. About this circumferential or arranged in a ring shape hole sequence, the connection to the rear wing channel.
Vorteilhafte Weiterbildungen und Ausgestaltungen der Erfindung ergeben sich aus den übrigen Unteransprüchen und aus dem nachfolgend anhand der Zeichnung prinzipmäßig beschriebenen Ausführungsbeispiel. Advantageous developments and refinements of the invention will become apparent from the remaining dependent claims and from the exemplary embodiment described in principle below with reference to the drawing.
Es zeigt: It shows:
Die Erfindung wird nachfolgend anhand einer Flügelzellenpumpe erläutert. Selbstverständlich ist sie jedoch auch für eine Rollenzellenpumpe oder eine Zahnradpumpe geeignet. Flügelzellenpumpen sind allgemein bekannt, wozu beispielsweise auf die eingangs erwähnten Schutzrechte verwiesen wird, weshalb nachfolgend nur auf die für die Erfindung wesentlichen Teile näher eingegangen wird. The invention will be explained below with reference to a vane pump. Of course, however, it is also suitable for a roller-cell pump or a gear pump. Vane pumps are well known, for which reference is made, for example, to the protective rights mentioned above, which is why below will be discussed only on the essential parts of the invention in more detail.
Im Inneren eines Gehäuses
Zwischen dem Kurvenring
In der Steuerplatte
Zwischen der Steuerplatte
Durchgangsbohrungen
In der Platine
Durch die Herstellung der Platinen
In besonders vorteilhafter Weise wird man in den Durchgangsbohrungen
BezugszeichenlisteLIST OF REFERENCE NUMBERS
- 1 1
- Gehäuse casing
- 2 2
- Antriebswelle drive shaft
- 3 3
- Rotor rotor
- 4 4
- Kurvenring cam ring
- 5 5
- Arbeitsschieber working slide
- 6 6
- Arbeitskammer working chamber
- 7 7
- Gehäusedeckel housing cover
- 8 8th
- Steuerplatte control plate
- 9 9
- Steuerplatte control plate
- 10 10
- Versorgungsnieren supply kidney
- 11 11
- Hinterflügelversorgungsnieren Rear wing supply kidney
- 11a 11a
- Hinterflügelversorgungskanal Rear wing supply channel
- 12 12
- Platine circuit board
- 13 13
- Platine circuit board
- 14 14
- Durchgangsbohrungen Through holes
- 14a 14a
- Lochfolge von Durchgangsbohrungen Punch sequence of through holes
- 15 15
- Steuerkerben control notches
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 (11)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE201110056849 DE102011056849A1 (en) | 2011-12-22 | 2011-12-22 | Displacement pump i.e. vane pump, for power steering of motor car, has printed circuit boards arranged between control plates and rotor in addition to curve ring, and including through holes, which flush with supply kidneys and/or channel |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE201110056849 DE102011056849A1 (en) | 2011-12-22 | 2011-12-22 | Displacement pump i.e. vane pump, for power steering of motor car, has printed circuit boards arranged between control plates and rotor in addition to curve ring, and including through holes, which flush with supply kidneys and/or channel |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102011056849A1 true DE102011056849A1 (en) | 2013-06-27 |
Family
ID=48575160
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE201110056849 Withdrawn DE102011056849A1 (en) | 2011-12-22 | 2011-12-22 | Displacement pump i.e. vane pump, for power steering of motor car, has printed circuit boards arranged between control plates and rotor in addition to curve ring, and including through holes, which flush with supply kidneys and/or channel |
Country Status (1)
Country | Link |
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DE (1) | DE102011056849A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3521560A3 (en) * | 2015-04-17 | 2019-08-21 | Schwäbische Hüttenwerke Automotive GmbH | Pump |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2334484A1 (en) * | 1972-07-07 | 1974-01-24 | Trw Inc | SLAVE PUMP |
DE2701085A1 (en) * | 1976-01-12 | 1977-07-21 | Trw Inc | PUMP |
US4219313A (en) * | 1978-07-28 | 1980-08-26 | Trw Inc. | Commutator valve construction |
DE2134478C3 (en) * | 1970-07-15 | 1981-11-05 | Karl Kanagawa Eickmann | High pressure rotary piston machine |
US4380472A (en) * | 1979-11-13 | 1983-04-19 | Toyoda Koki Kabushiki Kaisha | Method for producing pressure plates used in hydraulic pumps |
DE10229809A1 (en) | 2002-07-03 | 2004-01-15 | Zf Lenksysteme Gmbh | Vane pump |
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 |
-
2011
- 2011-12-22 DE DE201110056849 patent/DE102011056849A1/en not_active Withdrawn
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2134478C3 (en) * | 1970-07-15 | 1981-11-05 | Karl Kanagawa Eickmann | High pressure rotary piston machine |
DE2334484A1 (en) * | 1972-07-07 | 1974-01-24 | Trw Inc | SLAVE PUMP |
DE2701085A1 (en) * | 1976-01-12 | 1977-07-21 | Trw Inc | PUMP |
US4219313A (en) * | 1978-07-28 | 1980-08-26 | Trw Inc. | Commutator valve construction |
US4380472A (en) * | 1979-11-13 | 1983-04-19 | Toyoda Koki Kabushiki Kaisha | Method for producing pressure plates used in hydraulic pumps |
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 |
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 |
---|---|---|---|---|
EP3521560A3 (en) * | 2015-04-17 | 2019-08-21 | Schwäbische Hüttenwerke Automotive GmbH | Pump |
EP3081741B1 (en) | 2015-04-17 | 2019-11-13 | Schwäbische Hüttenwerke Automotive GmbH | Pump |
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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 |
|
R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |