EP2475889A2 - Drehkolbenpumpe - Google Patents
DrehkolbenpumpeInfo
- Publication number
- EP2475889A2 EP2475889A2 EP10750126A EP10750126A EP2475889A2 EP 2475889 A2 EP2475889 A2 EP 2475889A2 EP 10750126 A EP10750126 A EP 10750126A EP 10750126 A EP10750126 A EP 10750126A EP 2475889 A2 EP2475889 A2 EP 2475889A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- rotary
- outlet opening
- housing
- axes
- rotation
- 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
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
- F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
- F04C2/12—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
- F04C2/126—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with radially from the rotor body extending elements, not necessarily co-operating with corresponding recesses in the other rotor, e.g. lobes, Roots type
-
- 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
- F04C13/00—Adaptations of machines or pumps for special use, e.g. for extremely high pressures
- F04C13/001—Pumps for particular liquids
-
- 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
- F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
- F04C2/082—Details specially related to intermeshing engagement type machines or pumps
- F04C2/086—Carter
-
- 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
- F04C2210/00—Fluid
- F04C2210/24—Fluid mixed, e.g. two-phase fluid
-
- 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
- F04C2250/102—Geometry of the inlet or outlet of the outlet
Definitions
- the invention relates to a rotary piston pump for promoting a fluid medium containing solids, with two rotary pistons with interlocking rotary piston and each with a rotation axis and an outer circumference, wherein the axes of rotation of the two rotary pistons spaced from each other and are arranged parallel to each other and the outer circumferences of the two rotary pistons partially overlap , and a housing having an inlet opening and an outlet opening and an inner and an outer wall, wherein the inner wall of the housing each encloses a portion of the outer peripheries of the rotary pistons and wherein the rotary piston pump is formed, the medium in a conveying direction from the inlet to the outlet opening to promote.
- Rotary pumps belong to the positive displacement pumps and have two rotary pistons, each with two or more rotary piston flights.
- the Drehkoiben are arranged in a housing, the inner wall facing the Drehkoiben and the outer wall of the rotary piston pump terminates to the outside.
- the housing encloses with its inner wall in each case a portion of the outer peripheries of Drehkoiben.
- the enclosed by the GeHouseau towandung section is also referred to as enclosing angle.
- the tips of the rotary lobes may be provided with a coating, preferably a rubber sealing surface, to provide a seal between the lobe rotor and housing inner wall and between the intermeshing lobe vanes.
- the Drehkoiben are each rotatably driven in opposite directions about a rotation axis, wherein through the circular paths on which rotate the rotary vane tips, each an outer periphery of the rotary piston is defined. In the area where the rotary lobes engage, the two outer circumferences of the lobes overlap.
- Rotary pumps are generally symmetrical in order to allow a reversal of the conveying direction.
- Rotary pumps of the type mentioned are known for example from DE 297 23 984 U1, DE 34 27 282 A1, US 2,848,952, NL 101 62 83, US 3,126,834 and US 15,221.
- Rotary pumps of this type are also used to convey media containing solids.
- a fluid medium usually a liquid in which solids of different types and amounts may be contained, fed into the overlap region of the rotary pistons and further pushed from the rotary vanes to the outlet opening. In this case, media of different viscosity can be promoted.
- Rotary pump of the type mentioned have, for example, flow rates of about 3 to 1,000 cubic meters per hour, i. about 50 to 16,667 liters per minute, and pressures up to about 6 bar.
- Solids contained in the medium are swept with the medium into the spaces between the rotary lobes and transported with the medium in the conveying direction of the rotary lobe pump from the inlet to the outlet, solids contained in the medium may be, for example, stones, metal parts or other foreign matter.
- Rotary lobe pumps are often used in demanding environmental conditions. Typical applications for rotary lobe pumps are, for example, sewage treatment plants, wastewater and wastewater engineering, waste management and recycling technology, paper and pulp industry, rail and port industry, food industry or construction industry. Rotary pumps are u.a. used as a sludge pump, wastewater pump, dirty or hot water pump, sludge pump, feed pump, mobile pump, pump for contaminated media, slurry pump, sewage pump or pump for vinasse and pulp. These operating conditions require a robust, reliable and less sensitive design of rotary lobe pumps.
- the object is achieved in that the outlet opening on the inner wall of the housing has a maximum ejection extent, which is greater than the distance between the axes of rotation in a direction which is parallel to the plane of the axes of rotation and perpendicular to the axes of rotation.
- the outlet opening is an opening in the housing so that the outlet opening passes through both the inner wall and the outer wall of the housing.
- the ejection extent is defined as the extent of the outlet opening that occurs on the inner wall of the housing, in a direction that is perpendicular to both axes of rotation and connects these axes of rotation.
- rotary lobe pumps are used in an operating position in which the axes of rotation of the rotary pistons are aligned horizontally and arranged vertically one above the other.
- the ejection extent is in the vertical direction, i. parallel to the plane of the axes of rotation and perpendicular to the axes of rotation.
- other operating positions of rotary lobe pumps are also possible, for example with vertically aligned and horizontally juxtaposed axes of rotation, in which case the ejection extension would run in the horizontal direction.
- the ejection extent is greater than the distance of the axes of rotation from each other and thus greater than in the solutions shown in the prior art.
- the portion of the outer circumference, which is encompassed by the inner wall of the housing, is therefore smaller in the region of the outlet opening than in solutions shown in the prior art.
- the invention is based on the recognition that on the outlet side of existing rotary lobe pumps an outlet flow or vortex formation of the medium prevails, which causes solids at the outlet opening frequently between the rotary lobe tips and the housing or between two interlocking rotary lobes advised and damage, Wear and shutdowns can lead.
- the solids are released earlier by the rotary wafers. This has the consequence that the tangential direction in which the solids are flushed out of the rotary piston interspaces, leads away from the opposite Drehkoibenulateln.
- the paths of movement of the solids with respect to existing solutions advantageously change in such a way that the solids are led away from the rotary pistons, in particular of rotary scoop vanes of the respectively opposite rotary piston.
- This change in the trajectories of the solids results in a significant reduction in the amount of solids encountered at the outlet port between the rotary vane tips and the housing inner wall or between two intermeshing rotary vane vanes.
- the life of the rotary piston pump can be extended by the inventive solution and the repair and maintenance costs of the rotary lobe pump can be reduced.
- the cross section of the ejection extension can be arbitrarily shaped, for example circular or oval.
- the ejection extent along the entire width of the outlet opening is greater than the distance between the axes of rotation, since even with an ejection strain, which is smaller in sections than the distance between the axes of rotation, the positive effect on the trajectories of the solids decreases ,
- the outlet opening has a rectangular or square cross-section, in which the ejection extension over the entire width of the outlet opening is substantially constant.
- the invention is preferably further developed in that the ejection extent is greater than an extent of the inlet opening on the inner wall of the housing in a direction which is parallel to the plane of the axes of rotation and perpendicular to the axes of rotation.
- the flow conditions for example, also with respect to the vortex formation, on the inlet side of the rotary piston pump, on which the medium is sucked, differ from those on the outlet side of the rotary piston pump, on which the medium is forced out with pressure, is also a different
- the Flow and pressure conditions adapted design of the inlet and Ausiassö réelle advantageous to prevent or reduce the trapping of solids at both the inlet and the outlet opening.
- the invention is preferably developed by the fact that the cross-section of the outlet opening tapers from the inner wall of the housing to the outer wall of the housing.
- the cross section of the outlet opening on the inner wall of the housing is greater than the cross section of the outlet opening on the outer wall of the housing.
- a further development form in which, in the operating position of the rotary piston pump, the axes of rotation of the rotary pistons are aligned horizontally and arranged vertically one above the other.
- the ejection extension runs in the vertical direction.
- a rectangular or square cross section of the outlet opening is particularly preferred, in which the lower and the upper side surfaces or ejection ramps are inclined in the conveying direction to the central axis of the outlet opening.
- the width of the outlet opening may be the same on the inner wall of the housing as on the outer wall of the housing, so that there is no inclination of the side surfaces.
- the invention is preferably developed by the fact that the outlet opening on the outer wall of the housing has an extension which corresponds in a direction which is parallel to the plane of the axes of rotation and perpendicular to the axes of rotation, at most the distance between the axes of rotation. It is particularly preferred that the outlet opening on the outer wall of the housing has an extension in a direction parallel to the plane of the axes of rotation and perpendicular to the axes of rotation runs, is smaller than the distance between the axes of rotation.
- a further preferred development of the invention is characterized by a pipe connection flange surrounding the outlet opening with a central axis which is arranged offset to a central axis of the outlet opening on the outer wall of the housing. It is particularly preferred that in an operating division of the rotary piston pump, the axes of rotation of the two Drehko ben are aligned horizontally and vertically stacked and the center axis of the Rohran gleichfiansches is offset from the central axis of the Ausiassö réelle on the outer wall of the housing in the vertical direction downwards.
- the rotary piston pump preferably has a pipe connection flange.
- the pipe connection flange preferably has connection means to which a pipe or hose to be connected or the like is connected. can be attached.
- the pipe connection flange preferably surrounds the outlet opening, so that the complete cross section of the outlet opening is in fluid communication with the interior of a pipe to be connected.
- the pipe connection panel is preferably not arranged concentrically with the outlet opening on the outer wall of the housing, but displaced. This creates an offset between the outlet opening and the pipe to be connected to the pipe connection flange.
- This offset may advantageously serve as a barrier to solids and prevent them from being returned to the outlet port or between the poppet wings and the housing or between two intermeshing lobe flights after leaving the outlet port.
- the foreign body sensitivity and the repair and maintenance costs of the rotary lobe pump are further reduced and the life of the rotary lobe pump further increased.
- the offset between the outlet opening and the pipe to be connected forms an obstacle to solids that have left the outlet and are due to the effect of gravity or due to currents or vortices in the medium in the lower part of a pipe to be connected, so that the solids not or only difficult to get back into the outlet opening.
- the invention is preferably developed in that the housing has a base frame with two receptacles and two flanges which can be mounted interchangeably in the receptacles, wherein one of the two flanges is designed as the outlet flange comprising the outlet opening and the other of the two flanges is formed as the inlet flange comprising the inlet opening.
- the invention is preferably further developed by the fact that the two flanges and / or the two receptacles are formed such that each of the two flanges can be mounted both in one and in the other receptacle.
- an optimal conveying direction of the rotary piston pump is determined from the inlet to the outlet opening.
- a reverse conveying direction is possible in this embodiment of the inlet and outlet ports, but disadvantageous, since there is an increased risk of trapping solids between the rotary vane tips and the housing or between two interlocking rotary lobes.
- it is advantageous and desirable to be able to change the delivery direction of a rotary lobe pump, for example, when media must be conveyed in different directions or to solve blockages in the training of the invention is therefore intended to modularly build the housing with a base frame , which has two recesses or receptacles, in each of which a flange can be used.
- a flange preferably comprises the inlet opening or the outlet opening and possibly also the pipe flange surrounding the outlet opening.
- the two flanges and / or the two receptacles have a geometry which makes it possible to mount each of the two flanges in each of the two receptacles. If both flanges in the Accommodations are releasably fastened, can be reversed by swapping the two flanges and the optimal direction of conveyance. In order to ensure easy handling and thus a quick and easy reversal of the conveying direction, it is particularly preferred if the attachment of the flanges in the exceptions by means of quick release closures.
- the invention is preferably developed by the fact that the two receptacles are mirrored to one another at a symmetry surface extending through the base frame.
- This further embodiment is particularly preferred since a mirror-image configuration of the receptacles and preferably also a mirror-image design of the outer geometry of the flanges enables a particularly simple replacement of the flanges.
- the invention is preferably developed by virtue of the fact that the outlet opening has at least one movable adjusting element which is adjustable between a first and a second position in such a way that the conveying direction is in an arrangement of the adjusting element in the first position of the conveying direction in the case of an arrangement of the positioning element in the second Position is opposite.
- the invention is further preferably further developed in that the Einiass ⁇ réelle has at least one movable actuator which is adjustable between a first and a second position such that the conveying direction in an arrangement of the actuating element in the first position of the conveying direction in an arrangement of the actuating element In second position is opposite.
- the Einiass ⁇ réelle has at least one movable actuator which is adjustable between a first and a second position such that the conveying direction in an arrangement of the actuating element in the first position of the conveying direction in an arrangement of the actuating element In second position is opposite.
- it is therefore preferable, alternatively or in addition to a further development form with interchangeable mountable flanges, to make the geometry of the outlet or inlet opening variable. It is particularly preferred to be able to change the outlet opening by the at least one movable adjusting element in such a way that it has the geometry of an inlet opening in the second position of the actuating element.
- the invention is preferably further developed in that the actuating element of the outlet opening has a pressure application surface, which is configured such that the actuating element in the first position at a first pressure of the medium at the outlet opening and in the second at a second pressure of the medium at the outlet Position is arranged, wherein preferably the second pressure is a negative pressure.
- a further preferred embodiment provides a pressure sensor which is designed to detect the pressure of the medium at the outlet opening and is coupled to the stem element of the outlet opening in such a way that the actuating element is in the first position at a first pressure of the medium at the outlet opening and is arranged at a second pressure of the medium at the outlet opening in the second Stefiung.
- the invention is preferably further developed in that the actuator of the Efnlassö réelle has a pressure application surface which is formed such that the actuator at a first pressure of the medium at the inlet opening in the second position and at a second pressure of the medium at the inlet opening in the first position is arranged, wherein preferably the second pressure is a negative pressure.
- a further preferred embodiment provides a pressure sensor, which is designed to detect the pressure of the medium at the inlet opening and is coupled to the actuator of the inlet opening, that the steep element at a first pressure of the medium at the inlet opening in the second position and at a second pressure of the medium at the inlet opening in the first position is arranged.
- the pressure sensor for detecting the pressure of the medium at the inlet opening is identical to the pressure sensor for detecting the pressure of the medium at the outlet opening.
- actuating element or the adjusting elements By activating the actuating element or the adjusting elements as a function of these pressure conditions, a geometry of the inlet and outlet opening adapted to the conveying direction can be ensured in a simple manner.
- the coupling of the actuating element or the adjusting elements to the pressure of the medium can be done mechanically or via one or more sensors.
- the invention is preferably developed by at least one of the adjusting elements being coupled to at least one of the rotary pistons in such a way that the actuating element or the pillar elements are arranged in the first position in a first direction of rotation of the rotary piston and in the second position in a second direction of rotation of the rotary piston is or are.
- the invention is preferably further developed in that at least one of the
- the Stelielement or the steep elements in a first conveying direction of the rotary piston pump in the first position and in a second conveying direction of the rotary piston pump in the second position is arranged or are.
- Another possibility of activating the actuating element or the adjusting elements is the coupling provided in this embodiment with the switching device of the rotary piston pump with which the conveying direction can be switched.
- the coupling provided in this embodiment with the switching device of the rotary piston pump with which the conveying direction can be switched.
- FIG. 2 shows a cross section through a first embodiment of a rotary piston pump according to the invention
- FIG. 3 shows a cross section through a second embodiment of a rotary piston pump according to the invention.
- FIG. 1 shows the state of the art with a rotary pump 100 having two rotary pistons 110, 120 and a housing 130.
- the two rotary pistons 110, 120 each have an axis of rotation 111, 121 and four rotary vanes 112, 122.
- the housing 130 has an inner wall 131 surrounding the outer peripheries of the rotary pistons 110, 120 in sections, and an outer wall 132 and pedestals 133, 134 closing the rotary piston pump to the outside.
- the housing 130 has an inlet opening 150 and an outlet opening 140.
- the outlet opening 140 is surrounded by a Rohranschiussflansch 143, to which a pipe 160 having an upper wall 161, a lower wall 162 and a central axis 163 is connected.
- the central axis 163 of the pipeline 160 corresponds to the central axis of the Rohranschfussflansches 143. Also, the inlet port 150 is surrounded by a further Rohran gleichflansch 153, to which a further pipe 170 having an upper wall 171, a lower wall 172 and a central axis 173 is connected.
- the rotary pistons 10, 120 rotate in the directions of rotation 113, 123.
- the inlet opening 150 and the outlet opening 140 each taper towards the inner wall 131 of the housing and are mirror-symmetrical to the mirror surface SF , Between the inner wall 131 and the outer wall 132, the inlet and outlet openings form side surfaces 141, 42, 151, 152.
- the Umsch conductedungswinkef of the housing is both in the region of the inlet ais and in the region of the outlet opening alpha plus delta alpha, ie, the inner wall of the housing encloses each a portion of the outer periphery of a rotary piston of 2 x alpha plus 2 x delta alpha.
- Such a mirror-symmetrical design of the inlet and the outlet opening are advantageous in terms of a possible switching the conveying direction of the rotary lobe pump.
- this prior art solution is further to be improved in terms of foreign body sensitivity, cutoff frequency, pressure loss, wear, life, repair and maintenance costs.
- FIGS. 2 and 3 show two embodiments of rotary lobe pumps according to the invention. Functionally identical or similar components are denoted by the same reference numerals plus 100 (FIG. 2) and plus 200 (FIG. 3) with respect to FIG. 1.
- FIGS. 2 and 3 show two embodiments of rotary lobe pumps according to the invention. Functionally identical or similar components are denoted by the same reference numerals plus 100 (FIG. 2) and plus 200 (FIG. 3) with respect to FIG. 1.
- FIGS. 2 and 3 differ from the solution shown in the prior art shown in FIG. 1 by the configuration of the outlet opening 240, 340.
- the outlet openings 240, 340 are formed in the two variants according to FIGS. 2 and 3 the same.
- FIGS. 2 and 3 differ in that the inlet opening 250 according to FIG. 2 corresponds to the inlet opening 150 according to the prior art according to FIG. 1, whereas FIG. 3 shows an inlet opening 350, which differs both from the state of the art according to FIG. 1 as well as the variant of FIG. 2 according to the invention differs.
- the different configuration of the inlet openings 250, 350 in FIGS. 2 and 3 becomes clear in particular by the different inflow behavior of the medium, which is illustrated schematically with the arrows in the region of the enclosure openings 250, 350. Due to the tapering of the inlet opening 250 in the direction of the inner wall 231 of the housing 230 in FIG. 2, the medium is guided centrally between the two rotary pistons 210, 220. In the non-tapered Einiassö réelle 350 in Fig. 3, however, the medium flows over the entire cross section of the inlet opening 350 to a wider region of the two rotary pistons 310, 320 to.
- the outlet openings 240, 340 of FIGS. 2 and 3 taper in the conveying direction, ie in the direction from the inner wall 231, 331 to the outer wall 232, 332 of the housing 230, 330.
- the enclosure angle of the inner wall 231, 331 of the housing is on the outlet side of the rotary pump at the top and bottom of each beta minus delta beta.
- the Expulsion extent of the outlet opening 240, 340 is thus in a direction which is parallel to the plane of the axes of rotation 211, 221, 311, 321 and perpendicular to the axes of rotation 211, 221, 311, 321, greater than the distance between the axes of rotation 211, 221,
- the lower side surface or, ejection ramp 242, 342 is more inclined than the upper side surface 241, 241. This is realized in the embodiments shown in FIGS.
- the dash-dotted arrows show the tangential direction in which the solids are flushed out of the interstices of the rotary wing. These tangential directions point away from the rotary lobes of the respective opposing Drehkoibens.
- the trajectories of the conveyed by the lower rotary piston 220, 320 solids a In an arc from the Ausiassö réelle 240, 340 in the interior of the connected pipe 260, 360.
- the trajectories of the upper rotary piston 210th , 310 conveyed solids b also extend in an arc from the Ausiassö réelle 240, 340 in the interior of the connected pipe 260, 360.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rotary Pumps (AREA)
- Details And Applications Of Rotary Liquid Pumps (AREA)
- Details Of Reciprocating Pumps (AREA)
- Reciprocating Pumps (AREA)
Abstract
Description
Claims
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SI201031527T SI2475889T1 (sl) | 2009-09-08 | 2010-09-08 | Rotacijska batna črpalka |
| PL10750126T PL2475889T3 (pl) | 2009-09-08 | 2010-09-08 | Pompa z tłokami obrotowymi |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE202009012158U DE202009012158U1 (de) | 2009-09-08 | 2009-09-08 | Drehkolbenpumpe |
| PCT/EP2010/063179 WO2011029847A2 (de) | 2009-09-08 | 2010-09-08 | Drehkolbenpumpe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP2475889A2 true EP2475889A2 (de) | 2012-07-18 |
| EP2475889B1 EP2475889B1 (de) | 2017-05-31 |
Family
ID=43536426
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP10750126.4A Active EP2475889B1 (de) | 2009-09-08 | 2010-09-08 | Drehkolbenpumpe |
Country Status (12)
| Country | Link |
|---|---|
| US (1) | US9732749B2 (de) |
| EP (1) | EP2475889B1 (de) |
| JP (2) | JP2013504010A (de) |
| CN (1) | CN102625880B (de) |
| BR (1) | BR112012005192B1 (de) |
| DE (1) | DE202009012158U1 (de) |
| DK (1) | DK2475889T3 (de) |
| ES (1) | ES2634691T3 (de) |
| PL (1) | PL2475889T3 (de) |
| PT (1) | PT2475889T (de) |
| SI (1) | SI2475889T1 (de) |
| WO (1) | WO2011029847A2 (de) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11953007B2 (en) | 2018-12-13 | 2024-04-09 | Vogelsang Gmbh & Co Kg | Rotary lobe pump with internal bearing |
| US12460634B2 (en) | 2022-08-17 | 2025-11-04 | Vogelsang Gmbh & Co Kg | Pump for conveying a fluid |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202009012158U1 (de) | 2009-09-08 | 2011-02-03 | Hugo Vogelsang Maschinenbau Gmbh | Drehkolbenpumpe |
| DE202010011626U1 (de) | 2010-08-20 | 2010-10-21 | Hugo Vogelsang Maschinenbau Gmbh | Drehkolbenpumpe |
| DE102012206699B4 (de) * | 2012-04-24 | 2020-12-10 | Robert Bosch Gmbh | Zahnradmaschine mit wannenartiger Vertiefung an der Außenoberfläche des Gehäuses |
| DE102012008527B3 (de) | 2012-05-02 | 2013-07-25 | Netzsch Pumpen & Systeme Gmbh | Drehkolbenpumpe mit optimierten ein-und auslässen |
| EP2971774B1 (de) * | 2013-03-15 | 2021-01-27 | Lobepro, Inc. | Kolben mit ersetzbaren und/oder anpassbaren oberflächen |
| DE102014000392A1 (de) * | 2014-01-13 | 2015-07-16 | Schöning Gmbh | Gleitringdichtungssystem, Dosiervorrichtung mit Gleitringdichtungssystem sowie dazugehöriges Montageverfahren einer Dosiervorrichtung |
| CN104454512B (zh) * | 2014-11-04 | 2016-08-24 | 中国农业大学 | 一种多联凸轮泵 |
| CN106194762B (zh) * | 2016-09-27 | 2018-12-25 | 天津海辰华环保科技股份有限公司 | 旋转钢管泥浆泵 |
| GB2564381B (en) * | 2017-06-12 | 2020-07-01 | Edwards Ltd | Twin shaft pumps and a method of pumping |
| DE202017104786U1 (de) * | 2017-08-09 | 2018-11-12 | Vogelsang Gmbh & Co. Kg | Verteilervorrichtung für feststoffhaltige Flüssigkeiten |
| KR102172435B1 (ko) * | 2018-09-07 | 2020-11-02 | 한국생산기술연구원 | 회전자가 트위스트 된 용적식 수차 장치 |
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2009
- 2009-09-08 DE DE202009012158U patent/DE202009012158U1/de not_active Expired - Lifetime
-
2010
- 2010-09-08 BR BR112012005192-0A patent/BR112012005192B1/pt not_active IP Right Cessation
- 2010-09-08 JP JP2012528350A patent/JP2013504010A/ja active Pending
- 2010-09-08 WO PCT/EP2010/063179 patent/WO2011029847A2/de not_active Ceased
- 2010-09-08 CN CN201080039875.2A patent/CN102625880B/zh not_active Expired - Fee Related
- 2010-09-08 US US13/391,683 patent/US9732749B2/en not_active Expired - Fee Related
- 2010-09-08 PL PL10750126T patent/PL2475889T3/pl unknown
- 2010-09-08 PT PT107501264T patent/PT2475889T/pt unknown
- 2010-09-08 ES ES10750126.4T patent/ES2634691T3/es active Active
- 2010-09-08 SI SI201031527T patent/SI2475889T1/sl unknown
- 2010-09-08 EP EP10750126.4A patent/EP2475889B1/de active Active
- 2010-09-08 DK DK10750126.4T patent/DK2475889T3/en active
-
2015
- 2015-01-23 JP JP2015011736A patent/JP6029696B2/ja not_active Expired - Fee Related
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2011029847A2 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11953007B2 (en) | 2018-12-13 | 2024-04-09 | Vogelsang Gmbh & Co Kg | Rotary lobe pump with internal bearing |
| US12460634B2 (en) | 2022-08-17 | 2025-11-04 | Vogelsang Gmbh & Co Kg | Pump for conveying a fluid |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102625880A (zh) | 2012-08-01 |
| BR112012005192A2 (pt) | 2016-03-08 |
| BR112012005192B1 (pt) | 2020-08-18 |
| US9732749B2 (en) | 2017-08-15 |
| WO2011029847A3 (de) | 2012-03-15 |
| SI2475889T1 (sl) | 2017-10-30 |
| PT2475889T (pt) | 2017-08-23 |
| JP2013504010A (ja) | 2013-02-04 |
| EP2475889B1 (de) | 2017-05-31 |
| DK2475889T3 (en) | 2017-07-31 |
| JP2015078700A (ja) | 2015-04-23 |
| DE202009012158U1 (de) | 2011-02-03 |
| JP6029696B2 (ja) | 2016-11-24 |
| ES2634691T3 (es) | 2017-09-28 |
| US20120207638A1 (en) | 2012-08-16 |
| PL2475889T3 (pl) | 2017-10-31 |
| WO2011029847A2 (de) | 2011-03-17 |
| CN102625880B (zh) | 2016-01-13 |
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