EP3118411A1 - Vane for a vane pump and vane pump - Google Patents
Vane for a vane pump and vane pump Download PDFInfo
- Publication number
- EP3118411A1 EP3118411A1 EP16173478.5A EP16173478A EP3118411A1 EP 3118411 A1 EP3118411 A1 EP 3118411A1 EP 16173478 A EP16173478 A EP 16173478A EP 3118411 A1 EP3118411 A1 EP 3118411A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- wing
- pump
- vane
- recess
- base body
- 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.)
- Granted
Links
- 239000000463 material Substances 0.000 claims abstract description 14
- 239000004033 plastic Substances 0.000 claims abstract description 11
- 229920003023 plastic Polymers 0.000 claims abstract description 11
- 238000004873 anchoring Methods 0.000 description 7
- 239000012530 fluid Substances 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
Images
Classifications
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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
- 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
- F04C2/348—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 vanes positively engaging, with circumferential play, an outer rotatable member
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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
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
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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
- F01C21/08—Rotary pistons
- F01C21/0809—Construction of vanes or vane holders
- F01C21/0881—Construction of vanes or vane holders the vanes consisting of two or more parts
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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
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/30—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
- F04C18/34—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, 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 group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members
- F04C18/344—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, 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 group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
- F04C18/3441—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, 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 group F04C18/08 or F04C18/22 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
- F04C18/3445—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, 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 group F04C18/08 or F04C18/22 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 vanes having the form of rollers, slippers or the like
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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
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/30—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
- F04C18/34—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, 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 group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members
- F04C18/344—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, 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 group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
- F04C18/3446—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, 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 group F04C18/08 or F04C18/22 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
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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
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/30—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
- F04C18/34—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, 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 group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members
- F04C18/344—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, 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 group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
- F04C18/348—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, 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 group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member the vanes positively engaging, with circumferential play, an outer rotatable member
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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
- F04C25/00—Adaptations of pumps for special use of pumps for elastic fluids
- F04C25/02—Adaptations of pumps for special use of pumps for elastic fluids for producing high vacuum
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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
- F04C2240/00—Components
- F04C2240/20—Rotors
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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
- F04C2240/00—Components
- F04C2240/80—Other components
Abstract
Flügel (10) für eine Flügelzellenpumpe (60), insbesondere für eine Vakuumpumpe, wobei der Flügel (10) von einem Rotor (66) in einem Pumpenraum (64) um eine Drehachse drehbar und in Längsrichtung im Rotor (66) führbar ist, mit einer Oberseite (12) und einer Unterseite (14) zur Anlage an den Boden und die Decke des Pumpenraums (64), mit einer Vorderseite (16) und einer der Vorderseite (16) gegenüberliegenden Rückseite (18) zur Begrenzung von Druckkammern, mit wenigstens einer Stirnseite (20) zur gleitbeweglichen Anlage an einer mantelseitigen Innenwand (68) des Pumpenraums (64), wobei der Flügel (10) einen Grundkörper (22) aus einem ersten Kunststoffmaterial und ein an den Grundkörper (22) angefordertes, die Stirnseite (20) bildendes und aus einem zweiten Kunststoffmaterial bestehendes Flügelende (24) aufweist, und wobei der Grundkörper (22) einen vom Flügelende (24) umformten Befestigungsabschnitt (26) aufweist, dadurch gekennzeichnet, dass der Befestigungsabschnitt (26) wenigstens eine Aussparung (36, 38, 40, 42) aufweist, die in quer zur Vorder- und/oder Rückseite (16, 18) verlaufender Querrichtung verläuft.A wing (10) for a vane pump (60), in particular for a vacuum pump, wherein the vane (10) of a rotor (66) in a pump space (64) about a rotation axis and in the longitudinal direction in the rotor (66) is feasible, with an upper side (12) and a lower side (14) for engaging the floor and the ceiling of the pump chamber (64), with a front side (16) and a rear side (18) opposite the front side (16) for limiting pressure chambers, with at least an end face (20) for slidably fitting on a shell-side inner wall (68) of the pump chamber (64), wherein the wing (10) has a base body (22) made of a first plastic material and an end face (20) requested on the base body (22) ) and comprising a second plastic material wing end (24), and wherein the base body (22) has a wing portion (24) formed by the fastening portion (26), characterized in that the fastening portion (26) at least one recess (36, 38, 40, 42) extending transversely to the front and / or rear (16, 18) extending transverse direction.
Description
Die Erfindung betrifft einen Flügel für eine Flügelzellenpumpe, insbesondere für eine Vakuumpumpe, sowie eine Flügelzellenpumpe, insbesondere eine Vakuumpumpe.The invention relates to a wing for a vane pump, in particular for a vacuum pump, and a vane pump, in particular a vacuum pump.
Eine Flügelzellenpumpe mit gattungsgemäßen Flügeln ist beispielsweise aus der
Ausgehend von einem derartigen Flügel, wie er aus der
Diese Aufgabe wird durch einen Flügel mit den Merkmalen des Anspruchs 1 gelöst. Insbesondere sieht ein derartiger Flügel vor, dass der Befestigungsabschnitt wenigstens eine Aussparung aufweist, die in quer zur Vorder- und/oder Rückseite verlaufender Querrichtung verläuft. Das Vorsehen einer derartigen Aussparung im Befestigungsabschnitt hat den Vorteil, dass die Stirnseite sicher am Grundkörper angeformt werden kann, so dass die Pumpe auch bei höheren Temperaturen und/oder bei größer dimensionierten Pumpen, und insbesondere bei höher bauenden Flügeln, sicher betrieben werden kann. Bei den bekannten Flügeln hat sich nämlich herausgestellt, dass bei höheren Betriebstemperaturen aufgrund der unterschiedlichen Ausdehnungskoeffizienten der unterschiedlichen Kunststoffe die Flügelenden nicht mehr sicher am Grundkörper verankert sind, sondern sich insbesondere in senkrecht zur Ober- bzw. Unterseite verlaufender Richtung gegenüber dem Grundkörper bedingt verschieben. Durch Vorsehen von wenigstens einer Aussparung, und vorzugsweise von mehreren Aussparungen, die in Querrichtung am Befestigungsabschnitt vorgesehen sind und in die beim Anformen des Flügelendes das zweite Kunststoffmaterial des Flügelendes eingreift, wird eine verbesserte Anordnung der Flügelenden am Befestigungsabschnitt erreicht. Eine mit einem derartigen Flügel ausgerüstete Flügelzellenpumpe kann bei höheren Betriebstemperaturen eingesetzt werden. Zudem kann der Flügel auch in zur Ober- oder Unterseite senkrecht verlaufender Richtung höher bauen, ohne dass die sichere Anbindung der Flügelenden am Grundkörper gefährdet wird. Insgesamt kann dadurch eine Leistungserhöhung der Flügelzellenpumpe bereitgestellt werden.This object is achieved by a wing with the features of claim 1. In particular, such a wing provides that the attachment portion has at least one recess which extends in transverse to the front and / or rear transverse direction. The provision of such a recess in the attachment portion has the advantage that the end face can be securely formed on the body, so that the pump can be operated safely even at higher temperatures and / or larger-sized pumps, and in particular at higher-building wings. In fact, in the known blades, it has been found that at higher operating temperatures, due to the different expansion coefficients of the different plastics the wing tips are no longer securely anchored to the base body, but move conditionally in particular in perpendicular to the top or bottom extending direction relative to the body. By providing at least one recess, and preferably a plurality of recesses provided transversely at the attachment portion and engaging the second plastic material of the blade end in molding the blade end, an improved arrangement of the blade ends on the attachment portion is achieved. A vane pump equipped with such a vane can be used at higher operating temperatures. In addition, the wing can also build higher in the direction perpendicular to the top or bottom, without jeopardizing the secure connection of the wing tips to the base body. Overall, this can provide an increase in power of the vane pump.
Die wenigstens eine Aussparung weist dabei vorzugsweise parallel zur Ober- und/oder Unterseite verlaufende Halteflächen auf. In diese Haltflächen können insbesondere auf das Flügelende senkrecht zur Ober- und/oder Unterseite wirkende Kräfte in den Grundkörper abgeleitet werden. Ein Bewegen oder Lösen des Flügelendes in Richtung senkrecht zur Ober - und/oder Unterseite des Flügels wird damit vermieden.The at least one recess has preferably parallel to the top and / or bottom extending support surfaces. In particular, forces acting on the wing end perpendicular to the upper and / or lower side can be diverted into the base body into these retaining surfaces. A movement or release of the wing end in the direction perpendicular to the top and / or bottom of the wing is thus avoided.
Der Flügel kann dabei vorzugsweise an beiden Stirnseiten Flügelenden aus einem zweiten Kunststoffmaterial vorsehen; ein derartiger Flügel dient dann zur Verwendung in einer einflügeligen Flügelzellenpumpe.The wing may preferably provide at both ends wing ends of a second plastic material; such a wing then serves for use in a single-vane vane pump.
Die gleitbeweglichen Anlage der Stirnseiten an der mantelseitigen Innenwand des Pumpenraums kann dabei unmittelbar sein oder es kann ein Gleitmedium, wie beispielsweise ein Ölfilm, zwischen den Stirnseiten und der Innenwand vorgesehen sein.The slidable attachment of the end faces on the shell-side inner wall of the pump chamber can thereby be direct or it may be a sliding medium, such as an oil film, provided between the end faces and the inner wall.
Vorteilhafterweise ist die Kontur des einen Flügelendes in Draufsicht auf die Ober- oder Unterseite der einen Stirnseite achsensymmetrisch zur Kontur des anderen Flügelendes, wobei die Symmetrieachse dann insbesondere die Drehachse oder die Mittelhochachse des Flügels ist.Advantageously, the contour of the one wing end in plan view of the top or bottom of one end face is axisymmetric to the contour of the other wing end, the axis of symmetry then in particular the axis of rotation or the central vertical axis of the wing.
Die wenigstens eine Aussparung ist vorzugsweise in Hochrichtung im mittleren Bereich des Befestigungsabschnitts vorgesehen. Dadurch ergibt sich eine gleichmäßige Verankerung des Flügelendes am Grundkörper.The at least one recess is preferably provided in the vertical direction in the middle region of the fastening section. This results in a uniform anchoring of the wing end on the body.
Vorteilhaft ist alternativ oder zusätzlich wenigstens eine Aussparung im Bereich der Oberseite und/oder der Unterseite des Befestigungsabschnitts vorgesehen. Auch eine derartige Aussparung trägt zu einer festen Verankerung des Flügelendes am Grundkörper bei.Advantageously, alternatively or additionally, at least one recess is provided in the region of the upper side and / or the underside of the fastening section. Such a recess also contributes to a firm anchoring of the wing end to the base body.
Die eine oder mehreren Aussparungen können dabei so ausgebildet sein, dass sie sich in Querrichtung vollständig durch den Befestigungsabschnitt erstrecken. Allerdings ist ebenfalls denkbar, dass die Aussparung als "Sack"-Aussparungen ausgebildet sind, und in Querrichtung gesehen einen Boden vorsehen, der insbesondere vom Befestigungsabschnitt gebildet wird.The one or more recesses may be formed so that they extend completely through the attachment portion in the transverse direction. However, it is also conceivable that the recess are formed as "bag" Ausussungen, and seen in the transverse direction provide a floor, which is in particular formed by the mounting portion.
Besonders vorteilhaft ist, wenn die wenigstens eine Aussparung in Längsrichtung, also in Richtung senkrecht zur Stirnseite des Flügels betrachtet, Hinterschneidungen aufweist. Aufgrund derartiger Hinterschneidungen wird verhindert, dass das jeweilige Flügelende in Längsrichtung im Betrieb des Flügels vom Grundkörper abheben kann. Insgesamt wird eine zusätzliche, bessere Verankerung des Flügelendes am Grundkörper bereitgestellt.It is particularly advantageous if the at least one recess in the longitudinal direction, ie viewed in the direction perpendicular to the end face of the wing, has undercuts. Due to such undercuts prevents the respective wing end in the longitudinal direction can lift off the main body during operation of the wing. Overall, an additional, better anchoring of the wing end to the base body is provided.
Dabei ist vorteilhaft, wenn die wenigstens eine Aussparung in Querrichtung betrachtet T-förmig ausgebildet ist, und insbesondere, wenn die T-Balken die Hinterschneidungen bildet. Derartige Aussparungen können auf einfache Art und Weise realisiert werden und führen dennoch zu einer sicheren Verankerung der Flügelenden.It is advantageous if the at least one recess in the transverse direction viewed T-shaped, and in particular when the T-bar forms the undercuts. Such recesses can be realized in a simple manner and yet lead to a secure anchoring of the wing tips.
Insbesondere ist denkbar, dass am Befestigungsabschnitt mehrere und/oder unterschiedlich ausgebildete Aussparungen vorgesehen sind, die an die jeweiligen Anforderungen an das Flügelende bzw. des Flügels angepasst sind.In particular, it is conceivable that a plurality of and / or differently shaped recesses are provided on the attachment portion, which are adapted to the respective requirements of the wing tip or the wing.
Ferner ist vorteilhaft, wenn der Befestigungsabschnitt in Querrichtung betrachtet auf der Vorderseite und der Rückseite des Befestigungsabschnitts jeweils eine Nut aufweist, wobei die beiden Nuten seitlich versetzt zueinander verlaufend vorgesehen sind. Im Gegensatz dazu sind aus dem Stand der Technik gemäß der
Dabei ist denkbar, dass die, die beiden Nuten begrenzenden, dem Grundkörper abgewandten Nutstege durch einen in Draufsicht auf die Oberseite und/oder Unterseite gesehen schräg zur Vorderseite und/oder Rückseite verlaufenden Wandabschnitt verbunden sind. Durch Vorsehen eines derart schräg verlaufenden Wandabschnitts kann eine bessere Krafteinleitung der auf die Flügelenden wirkenden Kräfte in den Grundkörper bereitgestellt werden. Zudem ergibt sich eine bessere Verankerung der Flügelenden am Grundkörper.It is conceivable that the, the two grooves limiting, facing away from the base groove webs are connected by a seen in plan view of the top and / or bottom obliquely to the front and / or rear wall portion extending. By providing such a sloping wall portion, a better force introduction of the forces acting on the wing ends in be provided the main body. In addition, there is a better anchoring of the wing tips on the body.
Die Flügelenden als solche können vorzugsweise in Draufsicht betrachtet asymmetrisch zur Mittellängsebene des Flügels verlaufend ausgebildet sein. Hierdurch ergibt sich eine optimalere Anpassung des Flügelendes an die mantelförmige Innenwand des Pumpenraums sowie eine günstige auf die Flügelenden wirkende Kraftverteilung.The wing tips as such may preferably be designed to extend in an asymmetrical manner to the central longitudinal plane of the wing when viewed in plan view. This results in a more optimal adaptation of the wing end to the shell-shaped inner wall of the pump chamber and a favorable force distribution acting on the wing tips.
Das Flügelende kann dabei in Draufsicht einen ersten bauchigen Abschnitt und einen flachen, schräg zur Vorder-und/oder Rückseite des Flügels verlaufenden zweiten Abschnitt aufweisen, wobei der zweite Abschnitt vorzugsweise im Betrieb der Flügelzellenpumpe der Niederdruckkammer zugewandt ist. Es hat sich gezeigt, dass gerade eine solche Kontur des Flügels zu guten Pumpeigenschaften beiträgt.The wing end may have in plan view a first bulbous portion and a flat, extending obliquely to the front and / or back of the wing second portion, wherein the second portion is preferably facing in operation of the vane pump of the low pressure chamber. It has been shown that just such a contour of the wing contributes to good pumping properties.
Ferner ist vorteilhaft, wenn sich an den zweiten Abschnitt wenigstens ein weiterer flacher, ebenfalls schräg zur Vorder- und/oder Rückseite verlaufender dritter Abschnitt anschließt, wobei der dritte Abschnitt mit der Vorderseite und/oder der Rückseite einen kleineren Winkel als der zweite Abschnitt einschließt oder der parallel zum zweiten Abschnitt verläuft. Es hat sich gezeigt, dass eine derartige Kontur zu weiteren positiven Eigenschaften der Pumpe führt.It is also advantageous if at least one further flat, also obliquely to the front and / or rear third section adjoins the second portion, wherein the third portion with the front and / or the rear includes a smaller angle than the second portion or which runs parallel to the second section. It has been found that such a contour leads to further positive properties of the pump.
Die der Erfindung zugrundeliegende Aufgabe wird ebenfalls durch eine Flügelzellenpumpe, insbesondere eine Vakuumpumpe, gelöst, die einen Pumpenraum, einen im Pumpenraum drehbar gelagerten Rotor und einen im Rotor in radialer Richtung führbar gelagerten, erfindungsgemäßen Flügel vorsieht.The problem underlying the invention is also achieved by a vane pump, in particular a vacuum pump, which has a pump chamber, a rotatably mounted in the pump chamber rotor and a rotor in radial direction guidably mounted, inventive wing provides.
Weitere Vorteile und einzelne Ausgestaltungen der Erfindung sind der nachfolgenden Beschreibung zu entnehmen, anhand derer ein Ausführungsbeispiel der Erfindung näher beschrieben und erläutert wird.Further advantages and individual embodiments of the invention will become apparent from the following description, with reference to which an embodiment of the invention will be described and explained in more detail.
Es zeigen:
-
Figur 1 eine perspektivische Ansicht eines erfindungsgemäßen Flügels; -
Figur 2 die Draufsicht auf den Flügel gemäßFigur 1 ; -
Figur 3 die Ansicht des Flügels gemäßFigur 1 mit separat dargestelltem Flügelende; -
Figur 4 den Grundkörper des Flügels gemäßFigur 1 in Vorderansicht; -
Figur 5 den Grundkörper gemäßFigur 4 in Seitenansicht; -
Figur 6 den Grundkörper gemäßFigur 4 in Draufsicht; -
Figur 7 den Grundkörper gemäßFigur 4 in perspektivischer Ansicht von schräg oben; -
Figur 8 eine vergrößerte Ansicht des Flügelendes ausFigur 3 ; und -
Figur 9 eine erfindungsgemäße Flügelzellenpumpe mit einem Flügel gemäßFigur 1 .
-
FIG. 1 a perspective view of a wing according to the invention; -
FIG. 2 the top view of the wing according toFIG. 1 ; -
FIG. 3 the view of the wing according toFIG. 1 with separately represented wing end; -
FIG. 4 the main body of the wing according toFIG. 1 in front view; -
FIG. 5 according to the basic bodyFIG. 4 in side view; -
FIG. 6 according to the basic bodyFIG. 4 in plan view; -
FIG. 7 according to the basic bodyFIG. 4 in a perspective view obliquely from above; -
FIG. 8 an enlarged view of the wing endFIG. 3 ; and -
FIG. 9 a vane pump according to the invention with a wing according toFIG. 1 ,
In den
Der Grundkörper 22 weist, wie aus den
Die Flügelenden 24 werden vorzugsweise in einem ZweiKomponenten-Spritzgussverfahren an den Grundkörper 22 angeformt.The
Wie aus den
Wie insbesondere aus der Draufsicht gemäß
Wie ebenfalls aus den
Die Aussparungen 36 und 38 sind dabei jeweils im mittigen Bereich der Befestigungsabschnitte 26 vorgesehen und weisen jeweils zwei parallel zur Ober- und/oder Unterseite 12, 14 verlaufende Halteflächen 43 und einen Boden 45 auf. Die Aussparung 38 ist dabei von der Vorderseite 16 des Grundkörpers 22 eingebracht; die Aussparung 40 von der Rückseite 18 des Grundkörpers 22.The
Zwischen den Aussparungen 36 und 28 ist, wie in
Wie aus beispielsweise
Bei höher bauenden Flügeln 10, also bei Flügeln, bei denen die Oberseite 12 weiter von der Unterseite 14 beabstandet ist, ist denkbar, weitere den Aussparungen 38 und 40 entsprechende Aussparungen am Befestigungsabschnitt 26 vorzusehen.In the case of
Wie aus insbesondere der Draufsicht gemäß
An diesen zweiten Abschnitt 52 schließt sich ein parallel zum zweiten Abschnitt 52 verlaufender, zurückversetzter dritter Abschnitt 54 an, der über einen Zwischenabschnitt 56 mit dem Abschnitt 52 verbunden ist. Denkbar ist auch, dass der dritte Abschnitt 54 parallel zum zweiten Abschnitt 52 verläuft, und insbesondere zu diesem zurückversetzt ist.This
An der Oberseite und der Unterseite der Endabschnitte Anformpunkte 58 zu erkennen.At the top and the bottom of the end portions to recognize 58 Anformpunkte.
Die in der
Claims (13)
mit einer Oberseite (12) und einer Unterseite (14) zur Anlage an den Boden und die Decke des Pumpenraums (64),
mit einer Vorderseite (16) und einer der Vorderseite (16) gegenüberliegenden Rückseite (18) zur Begrenzung von Druckkammern,
mit wenigstens einer Stirnseite (20) zur gleitbeweglichen Anlage an einer mantelseitigen Innenwand (68) des Pumpenraums (64),
wobei der Flügel (10) einen Grundkörper (22) aus einem ersten Kunststoffmaterial und ein an den Grundkörper (22) angefordertes, die Stirnseite (20) bildendes und aus einem zweiten Kunststoffmaterial bestehendes Flügelende (24) aufweist, und
wobei der Grundkörper (22) einen vom Flügelende (24) umformten Befestigungsabschnitt (26) aufweist,
dadurch gekennzeichnet, dass der Befestigungsabschnitt (26) wenigstens eine Aussparung (36, 38, 40, 42) aufweist, die in quer zur Vorder- und/oder Rückseite (16, 18) verlaufender Querrichtung verläuft.Vane (10) for a vane pump (60), in particular for a vacuum pump, the vane (10) being rotatable by a rotor (66) in a pump space (64) about an axis of rotation and longitudinally in the rotor (66),
with an upper side (12) and a lower side (14) for engagement with the floor and the ceiling of the pump chamber (64),
with a front side (16) and a rear side (18) opposite the front side (16) for delimiting pressure chambers,
with at least one end face (20) for slidably fitting on a shell-side inner wall (68) of the pump chamber (64),
wherein the wing (10) has a base body (22) of a first plastic material and a to the base body (22) requested, the end face (20) forming and consisting of a second plastic material wing end (24), and
wherein the base body (22) has a fastening section (26) formed by the wing end (24),
characterized in that the fastening portion (26) has at least one recess (36, 38, 40, 42) which extends transversely to the front and / or rear (16, 18) extending transverse direction.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102015213098.3A DE102015213098B4 (en) | 2015-07-13 | 2015-07-13 | Wing for a vane pump and vane pump |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3118411A1 true EP3118411A1 (en) | 2017-01-18 |
EP3118411B1 EP3118411B1 (en) | 2020-10-14 |
Family
ID=56116312
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP16173478.5A Active EP3118411B1 (en) | 2015-07-13 | 2016-06-08 | Vane for a vane pump and vane pump |
Country Status (4)
Country | Link |
---|---|
US (1) | US10087930B2 (en) |
EP (1) | EP3118411B1 (en) |
CN (1) | CN106351839B (en) |
DE (1) | DE102015213098B4 (en) |
Citations (4)
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WO2002025113A1 (en) | 2000-09-21 | 2002-03-28 | Robert Bosch Gmbh | Plastic vane for a vane-cell vacuum pump |
DE10307040A1 (en) * | 2003-02-20 | 2004-09-16 | Luk Automobiltechnik Gmbh & Co. Kg | Vacuum pump, especially for power assisted vehicle braking system, includes vane having interior hollow spaces with closed injection holes |
DE102004034921B3 (en) * | 2004-07-09 | 2005-12-29 | Joma-Hydromechanic Gmbh | A single-blade |
DE102010026034A1 (en) * | 2010-07-03 | 2012-01-05 | Mahle International Gmbh | Rotary vane pump for brake booster of motor car, has rotor rotatably mounted in inner space, and rolling bodies provided at longitudinal ends of vane, where vane is unrolled on inner circumference trajectory over rolling bodies |
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US4124676A (en) * | 1976-09-29 | 1978-11-07 | Crane Packing Co. | Mechanical bond |
US4604041A (en) * | 1984-04-09 | 1986-08-05 | Barmag Barmer Maschinenfabrik Aktiengesellschaft | Rotary vane pump |
DE3712354A1 (en) * | 1986-11-08 | 1988-05-11 | Wankel Gmbh | ROTARY PISTON BLOWER |
ATE250722T1 (en) * | 2000-03-15 | 2003-10-15 | Joma Hydromechanic Gmbh | DISPLACEMENT PUMP |
WO2004074687A2 (en) * | 2003-02-20 | 2004-09-02 | Luk Automobiltechnik Gmbh & Co. Kg | Vacuum pump with a plastic blade |
JP3849799B2 (en) * | 2005-02-16 | 2006-11-22 | 大豊工業株式会社 | Vane pump |
DE102005050001A1 (en) * | 2005-10-13 | 2007-04-19 | Joma-Hydromechanic Gmbh | rotor pump |
DE102005056270B3 (en) * | 2005-11-14 | 2007-03-01 | Joma-Hydromechanic Gmbh | Rotary pump for pumping fluid has blade body and tip releasably connected to each other and groove in one of them in which spring engages |
DE102011108942B4 (en) * | 2011-07-29 | 2021-06-10 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Method for producing a component from a first and a second material |
KR102215789B1 (en) * | 2013-09-27 | 2021-02-16 | 코베스트로 도이칠란트 아게 | Multilayer structural component, method for the production thereof and use thereof |
DE102013222597B4 (en) * | 2013-11-07 | 2016-03-24 | Joma-Polytec Gmbh | displacement |
-
2015
- 2015-07-13 DE DE102015213098.3A patent/DE102015213098B4/en active Active
-
2016
- 2016-06-08 EP EP16173478.5A patent/EP3118411B1/en active Active
- 2016-07-11 US US15/206,977 patent/US10087930B2/en active Active
- 2016-07-12 CN CN201610547863.XA patent/CN106351839B/en active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2002025113A1 (en) | 2000-09-21 | 2002-03-28 | Robert Bosch Gmbh | Plastic vane for a vane-cell vacuum pump |
DE10307040A1 (en) * | 2003-02-20 | 2004-09-16 | Luk Automobiltechnik Gmbh & Co. Kg | Vacuum pump, especially for power assisted vehicle braking system, includes vane having interior hollow spaces with closed injection holes |
DE102004034921B3 (en) * | 2004-07-09 | 2005-12-29 | Joma-Hydromechanic Gmbh | A single-blade |
DE102010026034A1 (en) * | 2010-07-03 | 2012-01-05 | Mahle International Gmbh | Rotary vane pump for brake booster of motor car, has rotor rotatably mounted in inner space, and rolling bodies provided at longitudinal ends of vane, where vane is unrolled on inner circumference trajectory over rolling bodies |
Also Published As
Publication number | Publication date |
---|---|
CN106351839A (en) | 2017-01-25 |
DE102015213098A1 (en) | 2017-01-19 |
DE102015213098B4 (en) | 2017-05-04 |
CN106351839B (en) | 2019-10-01 |
US10087930B2 (en) | 2018-10-02 |
EP3118411B1 (en) | 2020-10-14 |
US20170016443A1 (en) | 2017-01-19 |
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