DE10233581A1 - Vane pump, to discharge a fluid, has a vane rotating with the rotor to move along the inner contour of a curve ring to draw in the fluid through suction kidneys and compress it for delivery through pressure kidneys - Google Patents
Vane pump, to discharge a fluid, has a vane rotating with the rotor to move along the inner contour of a curve ring to draw in the fluid through suction kidneys and compress it for delivery through pressure kidneys Download PDFInfo
- Publication number
- DE10233581A1 DE10233581A1 DE10233581A DE10233581A DE10233581A1 DE 10233581 A1 DE10233581 A1 DE 10233581A1 DE 10233581 A DE10233581 A DE 10233581A DE 10233581 A DE10233581 A DE 10233581A DE 10233581 A1 DE10233581 A1 DE 10233581A1
- Authority
- DE
- Germany
- Prior art keywords
- rotor
- vane pump
- pump according
- fluid
- pressure
- 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- Withdrawn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
- 210000003734 kidney Anatomy 0.000 title claims abstract description 39
- 239000012530 fluid Substances 0.000 title claims abstract description 22
- 230000002093 peripheral effect Effects 0.000 claims description 21
- 238000011038 discontinuous diafiltration by volume reduction Methods 0.000 abstract 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
Classifications
-
- 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
-
- 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
- F04C2250/00—Geometry
- F04C2250/10—Geometry of the inlet or outlet
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rotary Pumps (AREA)
Abstract
Description
Die Erfindung betrifft eine Flügelzellenpumpe zur Förderung eines Fluids nach dem Oberbegriff des Anspruchs 1.The invention relates to a vane pump to promote of a fluid according to the preamble of claim 1.
Es sind Flügelzellenpumpen bekannt, 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 radialverschiebliche Flügel geführt sind.Vane pumps are known, wherein a rotor rotates in a cam ring. The curve ring is different one side with a one housing forming end plate and completed with a control plate. The cam ring has a non-coaxial to the axis of the rotor Contour and forms a pump room. In the peripheral surface of the Rotors are over the width of which is arranged essentially radially extending slots, in which radially displaceable wings guided are.
Bei einer Rotation des Rotors um seine Achse werden die Flügel an der Kontur des Kurvenringes entlanggeführt, wobei zwischen zwei benachbarten Flügeln jeweils Kammern mit sich veränderndem Volumen gebildet sind.When the rotor rotates around its axis becomes the wing guided along the contour of the cam ring, between two neighboring ones wings chambers with changing Volume are formed.
Entsprechend der Drehbewegung des Rotors wird ein Saugbereich und ein Pumpendruckraum oder Druckbereich ausgebildet, wobei der Saugbereich im Bereich sich vergrößernden Volumens und der Druckbereich des Pumpendruckraumes im Bereich sich verkleinernden Volumens der Kammern angeordnet ist.According to the rotation of the The rotor becomes a suction area and a pump pressure chamber or pressure area formed, the suction area increasing in the area Volume and the pressure range of the pump pressure chamber in the area reducing volume of the chambers is arranged.
Dem Saugbereich wird das Fluid über einen Saugkanal und mit einer Saugniere in der Stirn- und/oder Steuerplatte zugeführt. Über ein oder mehrere Drucknieren, die als Druck-Sacknieren über die Kammern kommunizieren, wird das Fluid aus dem Pumpendruckraum zu einem Druckanschluss der Flügelzellenpumpe gelenkt. Der Außendurchmesser des Rotors ist dabei größer oder kleiner als der Abstand der tangentialen Drucknieren-Innenkontur von der Achse des Rotors, so dass bei der Ableitung des unter Druck stehenden Fluids aus dem Pumpendruckraum quer zur Rotorebene eine Stufe zwischen der Umfangsfläche des Rotors und dem Drucknieren-Innendurchmesser von dem Fluid zu umströmen ist. Insbesondere beim Austritt des Fluids aus einer mit Abstand zu der Druckniere angeordneten Druck-Sackniere ergibt sich ein entsprechender zusätzlicher Strömungsverlust und eine Leistungsminderung der Flügelzellenpumpe.The fluid is sucked into the suction area Suction channel and with a suction kidney in the front and / or control plate fed. About one or several pressure kidneys, which are called pressure sack kidneys Communicate chambers, the fluid from the pump pressure chamber is too a pressure connection of the vane pump directed. The outside diameter the rotor is larger or smaller than the distance of the tangential pressure kidney inner contour from the axis of the rotor, so when deriving the under pressure standing fluids from the pump pressure chamber transverse to the rotor plane Step between the peripheral surface of the rotor and the pressure kidney inside diameter to flow around by the fluid is. Especially when the fluid emerges from a distance a corresponding pressure sack kidney is provided for the pressure kidney additional flow loss and a reduction in performance of the vane pump.
Der Erfindung liegt die Aufgabe zugrunde, eine Flügelzellenpumpe zu schaffen, deren Leistung und Wirkungsgrad verbessert ist.The invention is based on the object a vane pump to create, whose performance and efficiency is improved.
Die Aufgabe wird mit einer Flügelzellenpumpe mit den Merkmalen des Anspruchs 1 gelöst.The task is done with a vane pump solved with the features of claim 1.
Dadurch dass der Radius des Rotors an der Druckniere gleich groß wie der tangentiale Abstand der Drucknieren-Innenkontur von der Achse des Rotors ist, ist eine Stufe im Querschnittsverlauf der Umfangsfläche des Rotors zu der Drucknieren-Innenkontur vermieden, wodurch das Fluid beim Ausströmen oder Durchströmen von Flügelzellenkammern im Bereich des Pumpendruckraumes keine Wirbel bildenden Stufen zu umströmen hat. Zudem ist durch diese konstruktive Wahl des Rotorradius eine Drucknieren-Entlastungsbohrung in dem Kurvenring überflüssig. Somit sind zusätzliche Bearbeitungsschritte bei der Herstellung des Kurvenringes und den Querschnitt des Kurvenringes schwächende Kanäle vermieden.Because of the radius of the rotor same size as on the pressure kidney the tangential distance of the inner contour of the pressure kidney from the axis of the rotor is a step in the cross-sectional profile of the peripheral surface of the Avoided the rotor to the pressure kidney inner contour, creating the fluid when emanating or flow through of vane cells in the area of the pump pressure chamber no steps forming vortexes flow around Has. In addition, this constructive choice of the rotor radius is one Pressure kidney relief hole in the cam ring superfluous. Consequently are additional Processing steps in the production of the cam ring and the Cross-section of the cam ring avoiding weakening channels.
Die Saugniere kann so in dem Gehäuse der Flügelzellenpumpe angeordnet sein, dass der Abstand ihrer tangentialen Innenkontur gleich dem Radius des Rotors ist.The suction kidney can thus in the housing Vane pump be arranged so that the distance of their tangential inner contour is equal to the radius of the rotor.
Es ist zweckmäßig, die Umfangsfläche des Rotors im Querschnitt konvex zu gestalten, wobei der Querschnitt bevorzugt zwei Wendepunkte aufweist. Die Wendepunkte des Querschnittsverlaufes der Umfangsfläche des Rotors haben dabei einen kleineren Abstand zu der Längsmittelebene des Rotors als zu den axialen Randflächen des Rotors. Die Wendepunkte können in gleichen oder unterschiedlichen topographischen Höhen auf dem Umfangsflächen-Querschnitt angeordnet sein, also gleichen oder unterschiedlichen radialen Abstand zu der Rotorachse haben, wobei die Kanten des Querschnitts von den axialen Randflächen des Rotors mit einem Steigungswinkel von etwa 8°–15°, vorzugsweise 11° zu den Wendepunkten ansteigen.It is appropriate to the peripheral surface of the To make the rotor convex in cross section, the cross section preferably has two turning points. The turning points of the cross-sectional course the peripheral surface of the rotor are at a smaller distance from the longitudinal median plane of the rotor than to the axial peripheral surfaces of the rotor. The turning points can at the same or different topographical heights the circumferential surface cross section be arranged, that is the same or different radial distance to the rotor axis, with the edges of the cross section of the axial edge surfaces of the Rotor with a pitch angle of about 8 ° -15 °, preferably 11 ° to the turning points increase.
Die Umfangsfläche des Rotors weist im Querschnitt bevorzugt eine dachförmige Kontur auf. Es kann auch zweckmäßig sein, die Kontur des Querschnitts der Umfangsfläche kegelförmig mit einer Kegelspitze in oder außerhalb der Längsmittelebene des Rotors zu wählen.The circumferential surface of the rotor has a cross section preferably a roof-shaped Contour on. It can also be useful the contour of the cross-section of the peripheral surface is conical with a cone tip inside or outside the longitudinal median plane of the rotor.
Die Kontur des Querschnitts der Umfangsfläche des Rotors kann auch parabelförmig konvex gewählt sein. Durch den konvexen Verlauf der Kontur ist eine gute Führung der Flügel in den Schlitzen bewirkt, wobei die Flügel unter dem Einfluss von Querkraft des zu komprimierenden Fluids sich geringfügig über ihre Breite verwölben und so insbesondere beim Einfahren der Flügel in die Führungen während des Komprimierens des Fluids besser in den Führungen gehalten sind und besser dichten. Ein hydraulischer Klebeeffekt im Spalt zwischen Flügel und Schlitz ist dadurch vermindert. Die Führungslängen der Flügel bleiben unverändert. Ein Ausführungsbeispiel der Erfindung ist nachfolgend anhand der Zeichnung gezeigt. In der Zeichnung zeigt:The contour of the cross section of the peripheral surface of the Rotors can also be parabolic be chosen convex. Due to the convex shape of the contour, good guidance of the wing in the slots, the wings under the influence of The lateral force of the fluid to be compressed is slightly above its Warp width and so especially when retracting the wings in the guides while of compressing the fluid are held better in the guides and better tight. A hydraulic adhesive effect in the gap between the wing and This reduces slit. The guide lengths of the wings remain unchanged. On embodiment the invention is shown below with reference to the drawing. In the Drawing shows:
In
In jedem Schlitz
Das Fluid
Je ein Pumpendruckraum
Die Drucknieren
Bei der Entleerung des Pumpendruckraumes
Um hierbei Strömungsverluste zu vermeiden,
ist der Radius
Es kann zweckmäßig sein, auch den Abstand
Um die radiale Führungslänge der Flügel
Die Wendepunkte
Die Querschnittsform der Umfangsfläche
BEZUGSZEICHENLISTE LIST OF REFERENCE NUMBERS
Claims (12)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10233581A DE10233581A1 (en) | 2002-07-24 | 2002-07-24 | Vane pump, to discharge a fluid, has a vane rotating with the rotor to move along the inner contour of a curve ring to draw in the fluid through suction kidneys and compress it for delivery through pressure kidneys |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10233581A DE10233581A1 (en) | 2002-07-24 | 2002-07-24 | Vane pump, to discharge a fluid, has a vane rotating with the rotor to move along the inner contour of a curve ring to draw in the fluid through suction kidneys and compress it for delivery through pressure kidneys |
Publications (1)
Publication Number | Publication Date |
---|---|
DE10233581A1 true DE10233581A1 (en) | 2004-02-05 |
Family
ID=30010334
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE10233581A Withdrawn DE10233581A1 (en) | 2002-07-24 | 2002-07-24 | Vane pump, to discharge a fluid, has a vane rotating with the rotor to move along the inner contour of a curve ring to draw in the fluid through suction kidneys and compress it for delivery through pressure kidneys |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE10233581A1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102015107519A1 (en) | 2015-05-13 | 2016-11-17 | Robert Bosch Automotive Steering Gmbh | Displacement pump, method for operating a positive displacement pump, steering system and gearbox |
DE102015120798A1 (en) | 2015-12-01 | 2017-06-01 | Robert Bosch Automotive Steering Gmbh | displacement |
DE102019215830A1 (en) * | 2019-10-15 | 2021-04-15 | Robert Bosch Gmbh | Positive displacement pump and method of operating a positive displacement pump |
CN117959585A (en) * | 2024-03-27 | 2024-05-03 | 生命盾医疗技术(苏州)有限公司 | Low shear stress asymmetric bleeding window and interventional catheter pump |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3050041C3 (en) * | 1979-11-13 | 1900-10-04 | ||
DE4109149C3 (en) * | 1991-03-20 | 1999-01-14 | Mannesmann Rexroth Ag | Control disc for vane pump |
-
2002
- 2002-07-24 DE DE10233581A patent/DE10233581A1/en not_active Withdrawn
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3050041C3 (en) * | 1979-11-13 | 1900-10-04 | ||
DE4109149C3 (en) * | 1991-03-20 | 1999-01-14 | Mannesmann Rexroth Ag | Control disc for vane pump |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102015107519A1 (en) | 2015-05-13 | 2016-11-17 | Robert Bosch Automotive Steering Gmbh | Displacement pump, method for operating a positive displacement pump, steering system and gearbox |
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 |
DE102015120798A1 (en) | 2015-12-01 | 2017-06-01 | Robert Bosch Automotive Steering Gmbh | displacement |
DE102019215830A1 (en) * | 2019-10-15 | 2021-04-15 | Robert Bosch Gmbh | Positive displacement pump and method of operating a positive displacement pump |
CN117959585A (en) * | 2024-03-27 | 2024-05-03 | 生命盾医疗技术(苏州)有限公司 | Low shear stress asymmetric bleeding window and interventional catheter pump |
CN117959585B (en) * | 2024-03-27 | 2024-05-31 | 生命盾医疗技术(苏州)有限公司 | Low shear stress asymmetric bleeding window and interventional catheter pump |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OM8 | Search report available as to paragraph 43 lit. 1 sentence 1 patent law | ||
8110 | Request for examination paragraph 44 | ||
8130 | Withdrawal |