EP2616640B1 - Pompe à pistons rotatifs et pistons rotatifs - Google Patents

Pompe à pistons rotatifs et pistons rotatifs Download PDF

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Publication number
EP2616640B1
EP2616640B1 EP11757838.5A EP11757838A EP2616640B1 EP 2616640 B1 EP2616640 B1 EP 2616640B1 EP 11757838 A EP11757838 A EP 11757838A EP 2616640 B1 EP2616640 B1 EP 2616640B1
Authority
EP
European Patent Office
Prior art keywords
recess
rotary
rotary lobe
driver
rotary piston
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.)
Active
Application number
EP11757838.5A
Other languages
German (de)
English (en)
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EP2616640A2 (fr
Inventor
Paul Krampe
Harald Vogelsang
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hugo Vogelsang Maschinenbau GmbH
Original Assignee
Hugo Vogelsang Maschinenbau GmbH
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Filing date
Publication date
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Publication of EP2616640A2 publication Critical patent/EP2616640A2/fr
Application granted granted Critical
Publication of EP2616640B1 publication Critical patent/EP2616640B1/fr
Active legal-status Critical Current
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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
    • 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
    • F04C2/084—Toothed wheels
    • 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
    • F01C19/00—Sealing arrangements in rotary-piston machines or engines
    • F01C19/005—Structure and composition of sealing elements such as sealing strips, sealing rings and the like; Coating of these elements
    • 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
    • F04C13/00—Adaptations of machines or pumps for special use, e.g. for extremely high pressures
    • F04C13/005—Removing contaminants, deposits or scale from the pump; Cleaning
    • 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
    • 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
    • F04C2240/00—Components
    • F04C2240/20—Rotors

Definitions

  • the present invention relates to a rotary lobe pump for conveying fluids, in particular liquids loaded with solids, with a housing and at least one pair of intermeshing rotary lobes arranged within the housing, a rotary piston each having at least one recess formed on its peripheral surface and / or at least one has recess formed on an end face.
  • the invention further relates to a rotary lobe for a rotary lobe pump for conveying fluids, in particular liquids loaded with solids.
  • Rotary lobe pumps of the type mentioned above are used to convey any liquids, but in particular also to convey sludge, waste water, dirty water, industrial water, thick matter, bilge water, faeces, liquid manure, chemicals or animal feed.
  • the known rotary lobe pumps are self-priming and insensitive to dry running.
  • the functional principle is based on the fact that the rotary lobe pump working as a positive displacement pump handles the fluid transport by means of the at least two rotary lobes on a wall of the Housing along causes from the pump inlet to the pump outlet, while the at least two rotary pistons in the middle of the housing lie against each other in a fluid-tight manner and rotate in opposite directions interlocked.
  • a rotary lobe pump in which two intermeshing rotary lobes are arranged rotating.
  • the rotary lobes have a sealing strip which is fastened by means of a screw.
  • the screw is screwed into a threaded hole.
  • a rotary lobe pump is known in which the rotary lobes have a projection extending in the longitudinal direction at the rotary lobe tip.
  • Out DE 18 07 392 a rotary lobe pump is known in which the top flanks of the rotary lobes consist of inserted plastic strips.
  • a twin-screw pump in which the screw threads have a groove on the outer surface in which an annular seal is arranged.
  • the object of the present invention was to provide a rotary lobe pump and a rotary lobe which have increased wear resistance.
  • the invention solves the task on which it is based with a rotary piston according to claim 1. It has been found that the accumulation of solid bodies in the recesses of the rotary piston is significantly improved when a driver is inserted into the recess. Although the volume available in the recess of the rotary piston thus decreases, the driver contributes positively to the detection of larger quantities of solid bodies and the directing into the recess. In any case, the solid bodies are in some cases pressed into the recess by advancing solid bodies.
  • the driver is preferably made of a wear-resistant material, so that the driver also has a certain resistance to penetrating solids, which in turn have a high strength.
  • the driver is particularly preferably made of hardened steel. Damage to the driver as a result of such solid bodies is associated with significantly less maintenance work than damage to the rotary piston or the housing wall.
  • the driver according to the invention is preferably arranged interchangeably in the recess.
  • a gap is formed between an edge of the at least one recess and the at least one driver.
  • the gap is therefore defined on the one hand by the type of edge and on the other hand by the shape of the driver.
  • the gap is advantageously set up to accommodate solid bodies detected by the driver. From the point at which the solid bodies captured by the driver enter the gap, they are preferably pressed into the depth of the recess by subsequent solid bodies.
  • the gap has widened sections. It has proven to be particularly advantageous not to design the gap uniformly along its entire length. Sections in which the gap is widened in the manner of a wedge shape increase the amount of solid bodies captured by the driver.
  • the wedge-shaped section is preferably arranged between the driver and the edge of the recess in such a way that, in the direction of rotation of the rotary piston of the rotary lobe pump, solid bodies first reach a wide section of the wedge-shaped section, in order to then be driven between the ever narrowing flanks of the wedge-shaped section.
  • the at least one recess is preferably designed as a groove and has a cross section which is essentially rectangular and / or is at least partially tapered towards the base of the recess, or is at least partially expanded conically towards the base of the recess.
  • a rectangular configuration of the cross section of the recess can be implemented in a time-saving and cost-effective manner from a manufacturing point of view.
  • a tapered configuration of the side surfaces of the recess towards the base of the recess favors penetration of solid bodies into the depth of the recess, while a conically widened profile of the side surfaces of the recess toward the base of the recess makes it more difficult for solid bodies to emerge from the recess.
  • the at least one driver is designed as a cap screw, which is screwed into a threaded bore, the thread of which extends in the screwed-in state up to a head contact surface of the cap screw.
  • the at least one driver is designed as a flat body, the height of the flat body being less than or equal to the depth of the recess receiving the at least one driver.
  • the fact that the flat body has a lower height than the recess in it accommodates can prevent the flat body itself from coming into frictional contact with the housing wall and thus damaging it. At the same time, this ensures that solid bodies also settle above the driver itself in a compact form. This protects the driver itself from further wear. If a rotary lobe in the rotary lobe pump reaches this state, however, there is also the disadvantage that the driver can no longer perform its actual function, namely to increasingly provide solid bodies in the recess.
  • one or more wedge-shaped recesses are provided on at least one side surface of the at least one driver, which faces the edge of the recess.
  • the wedge-shaped recesses at least partially define a wedge-shaped section between the edge of the recess and the driver.
  • the driver preferably has a distribution, arrangement and shape of the wedge-shaped recesses which is optimized for the individual main application of the rotary lobe pump.
  • the wedge-shaped recesses preferably extend both in the radial and in the tangential direction (when the driver is inserted in the rotary piston). This configuration supports the displacement of solid bodies into the depth of the recess by moving solid bodies.
  • the at least one driver has adjacent projections, between which a gap is formed in each case.
  • the carrier which is preferably designed as a flat body and has a plurality of projections, preferably functions in a manner similar to a comb.
  • the projections which can be cylindrical or polygonal, preferably extend from the bottom of the recess towards the surface of the piston and define wedge-shaped sections which each extend between the edge of a recess and two adjacent projections.
  • the at least one driver is designed as a dowel pin or threaded pin.
  • several drivers are adjacent and reversibly detachable in the at least one recess attached.
  • a gap is particularly preferably formed between adjacent drivers.
  • the drivers designed as a dowel pin, set screw or cap screw define wedge-shaped sections of the gap between the border of the recess and the drivers between them and the edge of the recess.
  • the drivers are designed as elements with a cylindrical, elliptical or polygonal cross section, which can be arranged and fastened separately in the recess. These elements are preferably arranged in such a way that solid bodies are detected and accumulated between adjacent elements.
  • the embodiment of the invention with a plurality of drivers per recess is particularly preferred for use on the peripheral surface of inclined rotary pistons, also referred to as spiral pistons.
  • inclined rotary pistons also referred to as spiral pistons.
  • the one or more drivers designed as cap screws which are fastened in the one or more exceptions, do not have an expansion section, and / or are each screwed into a threaded bore, the thread of which extends in the screwed-in state up to a head contact surface of the screw. in this way the clamping length of the screw connection is minimized.
  • the bracing applied is effected to the smallest possible extent by means of the longitudinal expansion of the screw. Conversely, this means that the screws can already be loosened by turning them a few degrees.
  • the loosening can advantageously also be effected by loosening when the screw heads no longer permit key engagement, for example as a result of damage or contamination.
  • the at least one driver is designed as a helical spring, which is at least largely arranged within the recess, the longitudinal axis of the helical spring being arranged parallel to the base of the recess.
  • Many solid bodies are advantageously detected between the individual turns of the helical spring.
  • the turns of the coil spring are due to the horizontal arrangement of the coil spring in the recess aligned so that the detected solids are guided along the turns into the interior of the recess.
  • the coil spring is preferably also elastically deformable in the radial direction. In this way, the coil spring can extend partially outside the recess. Characterized in that the coil spring is largely arranged within the recess and extends only with a small part outside the recess, the coil spring is elastically deformed when the coil spring strikes the housing wall and displaced into the interior of the recess.
  • the rotary pistons each have a sealing line on a wing, along which the rotary pistons are at a minimum distance from an inner wall of the housing of the rotary piston pump.
  • a plurality of recesses are arranged in the circumferential surface adjacent, preferably parallel, to the sealing line, wherein preferably elastically deformable sealing bodies are provided as drivers, which extend partially outside the recess in the direction of the housing wall.
  • the catches which are designed as elastically deformable sealing bodies, also take up a minimal distance from or touch the inner wall of the housing. As a result, further sealing lines are formed by means of the elastically deformable sealing body.
  • the elastically deformable sealing bodies are preferably designed to be displaced into the interior of the recess upon contact with the other rotary piston arranged opposite one another and to return to the original position following the displacement.
  • the elastically deformable sealing bodies are also preferably set up to withdraw from solid bodies acting on them, so that the solid bodies pass the displaced sealing bodies into the depth of the recess by being pressed in by subsequent solid bodies.
  • the embodiment with drivers formed as elastic sealing bodies also offers the advantage that additional sealing lines are created when the recesses receiving the sealing bodies are arranged directly adjacent to the sealing line, provided that the distance between the piston surface and the inner wall of the housing at the location of the recess with the elastic sealing bodies is not greater than the amount by which the sealing bodies extend outside of the recess receiving them.
  • the invention achieves the object on which it is based in a rotary piston of the type mentioned at the outset with at least one recess formed on its peripheral surface and / or at least one recess formed on its end face, by arranging at least one driver designed as explained above in the at least one recess and for Detection of solids is set up.
  • at least one driver designed as explained above in the at least one recess and for Detection of solids is set up.
  • the invention further relates to a method for sealing a rotary lobe against an inner wall of the housing of a rotary lobe pump, comprising the steps: Conveying a fluid, in particular a liquid loaded with solids, by means of a rotary lobe pump, and capturing solids from the conveyed fluid by means of one or more drivers, which are arranged in one or more recesses of the rotary lobe.
  • FIG. 1 A rotary lobe according to the invention is shown according to a first preferred embodiment.
  • the rotary piston 1 has three inclined wings, each of which has a tip section 3.
  • the rotary piston 1 has a peripheral surface 5, an upper end surface 7 and a lower end surface 9.
  • a recess 11 extends from the upper end face 7 to the lower end face 9 and is designed to receive a drive shaft.
  • Recesses 13 are provided in each tip section 3 of the wings along the circumference of the rotary piston 1.
  • FIG. 1 Two alternative embodiments of the rotary piston according to the invention are shown as examples.
  • the recess 13 shown on the left is a Flat body 15 trained driver arranged.
  • a substantially uniformly formed gap 19 is formed between the flat body 15 and an edge of the recess 13.
  • a recess 13 is shown on the right, in which a plurality of drivers designed as screws 17 are inserted.
  • the screws 17 are screwed into a thread in the base of the recess 13 with a minimal clamping length. Due to the minimal clamping length, the screws 17 can still be loosened even if the key engagement is damaged and severely deformed.
  • a gap is formed on the right, which, however, is not formed uniformly.
  • the wedge-shaped sections 21 are designed to hold solid objects which have been gripped by the drivers and to receive them in the recess.
  • FIG. 2 a cross section of a driver formed as a flat body 15 is shown.
  • the flat body 15 has a base body 23.
  • a plurality of wedge-shaped recesses 25 are each made in the opposite side faces of the base body 23.
  • the wedge-shaped recesses 25 are designed to wedge solid bodies.
  • Fig. 3a is a spatial representation of a driver formed as a flat body 15 according to an alternative embodiment.
  • the base body 23 from Fig. 3a has a substantially trapezoidal cross-section.
  • Two opposite side surfaces 26 are aligned conically.
  • An upper side 27, which faces the housing wall when the driver is inserted, is wider than an underside 29 of the driver, which in the inserted state faces the bottom of the recess receiving it.
  • a plurality of wedge-shaped recesses 25 are made in the side faces of the base body 23 of the flat body 15.
  • the wedge-shaped recesses are offset from one another in order to ensure a maximized size of the wedge-shaped recess.
  • the Flat body 15 according to Fig. 3a is just like the flat body Fig. 4 designed to be fastened in the recess along an axis 30 by means of fastening means (not shown).
  • the in Figure 3b shown driver differs from that in Figure 3a Carrier shown that the side surfaces 26 of the base body 23, in which the wedge-shaped recesses 25 are introduced offset to each other, are aligned parallel to each other, which is alternatively achieved by a rectangular cross section or a parallelogram-shaped cross section of the base body. Furthermore, in Figure 3b Two countersunk bores 28 arranged on the upper side 27 are shown for receiving a corresponding screw head.
  • the piston shown is for use in the peripheral surface of your rotary piston, such as according to FIG Figure 1 or 9 optimized. It is wound along its longitudinal direction in order to ensure an optimal adaptation to the likewise wound recess in the peripheral surface of such a rotary piston.
  • FIG. 4 Another embodiment of a driver is shown, which is designed as a flat body 15.
  • the flat body 15 from Fig. 4 has a base body 23, from which a plurality of projections 31 extend starting on the upper side 27 of the base body.
  • the projections 31 are arranged essentially parallel to one another and extend in the direction of the housing wall of the rotary lobe pump when the rotary lobe is inserted.
  • the projections 31 can optionally be arranged at an angle to one another in order to form V-shaped or A-shaped gaps 33 between adjacent projections 31, which is advantageous for the detection of solid bodies.
  • a projection 31 is advantageously formed as part of a screw which is screwed along the axis 30 through the base body 23 into the base of the recess for the driver.
  • the 5 to 8 show various advantageous embodiments of the recesses receiving the driver.
  • a recess 13 with an essentially rectangular cross section is shown.
  • the recess 13 is optionally provided in the peripheral surface 5 or one of the end surfaces 7, 9 and has two substantially parallel side surfaces 35.
  • the depth of the recess 13 in the rotary piston 1 is slightly greater than the height of the driver 15 or 17 to be received in the recess. If the driver 15, 17 is arranged in the recess 13 at maximum depth is the driver 15, 17 preferably with an underside of the base 37 of the recess 13.
  • a gap 19 is shown in each case, which is formed between the edges of the recess 13 and the driver 15, 17.
  • a recess 13 is shown, which does not have a completely rectangular cross section. Instead, the cross section of the recess 13 is in accordance with Fig. 6 only partially rectangular. Starting from the surface 5, 7, 9, the cross section of the recess 13 initially tapers towards the bottom 37 of the recess and then assumes a rectangular shape.
  • Fig. 7 The illustrated cross section of the recess 13 is viewed from the surface 5, 7, 9, initially of essentially widened conical shape and only then rectangular in the direction of the base 37 of the recess.
  • the cross section of the recess 13 is in accordance with Fig. 8 essentially conically expanded towards the bottom of the recess 37.
  • driver with an essentially cylindrical cross-sectional profile, such as, for example, elastically deformable sealing bodies 39 or helical springs 51 arranged horizontally (see FIG. Fig. 14 ).
  • drivers formed as flat bodies 15 or screws 17 in recesses 13 according to FIG Fig. 7 or 8 or other, correspondingly trained geometries can be arranged.
  • Rotary pistons shown only recesses arranged on the peripheral surface for receiving drivers are in the 9 to 11 further preferred embodiments of the rotary piston 1 according to the invention are shown with further preferred arrangements of the recesses.
  • Fig. 9 a three-bladed rotary piston 1 with three tip sections 3 on each wing and one otherwise Fig. 1 comparable interpretation.
  • the rotary piston according to Fig. 1 are however in accordance with the rotary piston 1 Fig. 9
  • recesses 41 are also arranged on the end face 7 (and optionally also on the lower end face 9) on each wing.
  • the recesses 41 can be arranged in a manner analogous to the recesses 13 on the peripheral surface 5 drivers, which are designed as a screw 17 or as a flat body 15 or as further drivers according to the invention.
  • Recesses 41 shown are arranged essentially radially tapering to the axis of the recess 11.
  • the recesses 41 are preferably to be arranged outside the radial line and / or at an angle to the radial line.
  • a two-bladed rotary piston 1 which has a tip section 3 on each of the two wings.
  • the two-bladed rotary lobe 1 according to Fig. 10 has straight wings.
  • a recess 13 is arranged in each case in the region of the sealing line, which extends in the peripheral surface 5 from below the upper end surface 7 to just above the lower end surface 9.
  • recesses 41 are arranged on each wing.
  • the recesses 41 like the recesses 13, have a longitudinal axis (not shown).
  • FIG. 11 Another embodiment of a rotary piston 1 according to the invention is shown.
  • the rotary piston 1 according to Fig. 11 is also a two-bladed piston with a straight piston.
  • the rotary piston 1 according to Fig. 11 again has tip sections 3 on the piston vanes, a peripheral surface 5, and an upper and a lower end surface 7, 9.
  • two recesses 41 are arranged in the end face 7 on each wing of the rotary piston 1 in a substantially radial orientation.
  • the recesses 41 on the end face 7 are each designed in a single row, whereas on the peripheral surface 5 of the piston 1 according to Fig. 11 a multi-row recess 43 is provided on each wing in the region of the sealing line.
  • Fig. 11 two rows of drivers formed as screws 17 are arranged.
  • the screws 17 are arranged next to one another and laterally offset from one another within the multi-row recess 43, as a result of which the number of gaps formed between the screws 17 and in particular their suitability for detecting and wedging solid bodies is improved.
  • the rotary lobe pump 10 has a rotary lobe 1 according to the invention, which is rotatably arranged within a housing.
  • the housing has a semi-cylindrical design Section 45 on.
  • an inner wall 47 is formed concentrically with the rotary piston 1.
  • cavities are formed between the rotary piston 1 and the housing inner wall 47, within which fluid is transported from a pump inlet to a pump outlet.
  • a cavity is bounded on the one hand by the surface of the inner wall 47 and on the other hand by the peripheral surface 5 of the rotary piston 1.
  • a sealing function is preferably formed in a sealing section 49.
  • a sealing function should preferably also be provided on the end face 7.
  • the sealing function is ensured on the face side by the driver 39, 51.
  • Fig. 13 shown which is a sectional view through the piston Fig. 12 represents.
  • a recess 41 is provided in each of the end face 7 and the end face 9.
  • a driver is used in the in Fig. 13 shown lower recess 41.
  • the driver has an essentially cylindrical cross section. Either the driver is designed as an elastically deformable sealing body 39 or as a coil spring 51.
  • the elastically deformable sealing body 39 enables better sealing, whereas the driver designed as a helical spring 51 has a higher capacity for detecting solid bodies.
  • a detail section Fig. 12 is in Fig. 14 shown enlarged.
  • the sealing section 49 of the rotary piston 1 has a first sealing line 53.
  • the clear width between the peripheral surface 5 of the rotary piston 1 and the inner surface 47 of the housing section 45 is minimal along the sealing line 53, ideally approximately equal to 0.
  • To the right and left of the sealing line 53 are two drivers, which are each arranged in a recess 13 a line 55 also in connection with the inner wall 47 of the housing section 45 or take a minimal distance from the inner wall 47.
  • the lines 55 are also formed as sealing lines.
  • the sealing lines are aligned essentially parallel to the first sealing line 53. The tightness and thus the efficiency of the rotary lobe 1 of the rotary lobe pump 10 is improved by means of the additional sealing lines 55.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Details And Applications Of Rotary Liquid Pumps (AREA)
  • Reciprocating Pumps (AREA)
  • Rotary Pumps (AREA)

Claims (6)

  1. Piston rotatif (1) pour une pompe à pistons rotatifs (10) servant à refouler des fluides, en particulier des liquides chargés en solides, avec au moins un creux (13, 43) réalisé au niveau de sa surface périphérique (5) et/ou au moins un creux (41) réalisé au niveau d'une surface frontale (7, 9),
    caractérisé en ce qu'au moins un entraîneur (15, 17, 39, 51) est disposé dans l'au moins un creux (13, 41, 43) et est mis au point pour détecter des solides, dans lequel l'au moins un entraîneur est réalisé en tant que vis à tête (17), qui est fixée dans l'au moins un creux (13, 41, 43) et est mise au point pour détecter des solides, dans lequel la vis à tête est vissée dans un alésage fileté, dont le filetage s'étend dans l'état vissé jusqu'à une surface de support de tête au niveau de la vis à tête, ou
    est réalisé en tant que corps plat (15), dans lequel la hauteur du corps plat (15) est inférieure ou égale à la profondeur du creux (13, 41, 43) recevant l'au moins un entraîneur, dans lequel un ou plusieurs évidements (25) cunéiformes sont prévus au niveau d'au moins une surface latérale (26) de l'au moins un entraîneur, laquelle est tournée vers la bordure du creux (13, 41, 43), ou
    est réalisé en tant que goujon d'assemblage ou goujon fileté, dans lequel de préférence plusieurs entraîneurs sont fixés de manière adjacente et manière amovible de manière réversible dans l'au moins un creux, et dans lequel respectivement une fente est réalisée entre des entraîneurs adjacents, ou
    est réalisé en tant que ressort hélicoïdal (51), lequel est disposé au moins en grande partie à l'intérieur du creux (13, 41, 43), dans lequel l'axe longitudinal du ressort hélicoïdal (51) est disposé de manière parallèle par rapport au fond du creux (13, 41, 43), ou
    dans lequel les pistons rotatifs (1) présentent au niveau d'une ailette respectivement une ligne d'étanchéité (53), le long de laquelle les pistons rotatifs (1) adoptent une distance minimale par rapport à une paroi intérieure (47) du boîtier (45), et plusieurs creux (13) sont disposés dans la surface périphérique de manière adjacente, de préférence de manière parallèle, par rapport à la ligne d'étanchéité (53) et des corps étanches (39) élastiquement déformables sont prévus en tant qu'entraîneurs, qui s'étendent en partie à l'extérieur du creux (13) en direction de la paroi intérieure (47) du boîtier (45).
  2. Piston rotatif (10) selon la revendication 1,
    caractérisé en ce qu'une fente (19) est réalisée entre une bordure de l'au moins un creux (13, 41, 43) et l'au moins un entraîneur (15, 17, 39, 51).
  3. Piston rotatif (10) selon la revendication 1,
    caractérisé en ce que la fente (19) présente des sections (21) élargies de manière cunéiforme.
  4. Piston rotatif (10) selon la revendication 1,
    caractérisé en ce que l'au moins un creux (13, 41, 43) est réalisé en tant que rainure et présente une section transversale, qui
    - est rétrécie de manière sensiblement rectangulaire, et/ou
    - est rétrécie au moins en partie de manière conique en direction du fond du creux, ou
    - est élargie au moins en partie de manière conique en direction du fond du creux.
  5. Pompe à pistons rotatifs servant à refouler des fluides, en particulier des liquides chargés en solides, avec un boîtier et au moins une paire de pistons rotatifs imbriqués l'un dans l'autre, disposés à l'intérieur du boîtier,
    dans laquelle un des pistons rotatifs est un piston rotatif selon l'une quelconque des revendications précédentes 1 - 4.
  6. Procédé servant à étanchéifier un piston rotatif (1) selon la revendication 1 contre une paroi intérieure (47) du boîtier (45) d'une pompe à pistons rotatifs (10), comprenant les étapes :
    - de refoulement d'un fluide, en particulier d'un liquide chargé en solides au moyen de la pompe à pistons rotatifs (10),
    - de détection de solides parmi le fluide refoulé au moyen d'au moins un entraîneur (15, 17, 39, 51), lequel est disposé dans au moins un creux (13, 41, 43) du piston rotatif (1).
EP11757838.5A 2010-09-13 2011-09-13 Pompe à pistons rotatifs et pistons rotatifs Active EP2616640B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202010012494U DE202010012494U1 (de) 2010-09-13 2010-09-13 Drehkolbenpumpe und Drehkolben
PCT/EP2011/065798 WO2012034985A2 (fr) 2010-09-13 2011-09-13 Pompe à pistons rotatifs et pistons rotatifs

Publications (2)

Publication Number Publication Date
EP2616640A2 EP2616640A2 (fr) 2013-07-24
EP2616640B1 true EP2616640B1 (fr) 2020-07-08

Family

ID=44653311

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11757838.5A Active EP2616640B1 (fr) 2010-09-13 2011-09-13 Pompe à pistons rotatifs et pistons rotatifs

Country Status (6)

Country Link
US (1) US20130209300A1 (fr)
EP (1) EP2616640B1 (fr)
CN (1) CN103221638A (fr)
DE (1) DE202010012494U1 (fr)
ES (1) ES2812504T3 (fr)
WO (1) WO2012034985A2 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2971776A2 (fr) * 2013-03-15 2016-01-20 Eaton Corporation Rotor feuilleté à faible inertie
DE102014117166B4 (de) * 2014-11-24 2016-07-07 Netzsch Pumpen & Systeme Gmbh Drehkolbenpumpe, verfahren zur fixierung von drehkolben einer drehkolbenpumpe und verfahren zur demontage von drehkolben einer drehkolbenpumpe
WO2016116251A1 (fr) * 2015-01-23 2016-07-28 Robert Bosch Gmbh Compresseur de suralimentation pour un moteur

Family Cites Families (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1407498A (en) * 1922-02-21 sutphen
US1005586A (en) * 1911-07-10 1911-10-10 Webb Motor Fire Apparatus Company Rotary-pump casing for auto fire apparatus.
US1348771A (en) * 1918-04-22 1920-08-03 E M Ferguson Rotary pump
US1348773A (en) * 1919-03-24 1920-08-03 E M Ferguson Rotary pump
US1407496A (en) * 1921-05-02 1922-02-21 Waterous Fire Engine Company Rotary piston pump
GB341337A (en) * 1930-03-15 1931-01-15 Sidney Zaleski Hall Improvements in rotary pumps of the fixed abutment type
US2460278A (en) * 1944-02-04 1949-02-01 Improved Paper Machinery Corp Rotary pump for thick fibrous suspensions
US3282495A (en) * 1964-04-29 1966-11-01 Dresser Ind Sealing arrangement for screw-type compressors and similar devices
FR96392E (fr) * 1968-11-07 1972-06-16 Eisenwerke Kaiserslautern G M Pompe a pistons rotatifs pour produits visqueux.
JPS5536967U (fr) * 1978-08-31 1980-03-10
US4390331A (en) * 1980-04-17 1983-06-28 Nachtrieb Paul W Positive displacement four lobe impeller structure
DE3707722A1 (de) * 1987-03-11 1988-09-29 Alois Boerger Rotorpumpe, insbesondere fuer die foerderung von feststoffe enthaltenden fluessigkeiten
US4984975A (en) * 1989-01-26 1991-01-15 Thompson George A Rotary pump with cutting means
DE4218855A1 (de) 1992-06-09 1993-12-16 Carl Enke Gmbh Pumpen Und Gebl Drehkolbenpumpe
US6053717A (en) * 1996-11-26 2000-04-25 Randy J. Dixon Rotary pump with wiper insert
EP1282777B1 (fr) * 2000-05-18 2007-08-15 Hugo Vogelsang Maschinenbau GmbH Pompe a piston rotatif
DE102005017575A1 (de) * 2004-08-05 2006-03-16 Börger GmbH Drehkolbenpumpe mit einem Pumpengehäuse und zwei zweiflügeligen Drehkolben
GB2429751A (en) 2005-08-31 2007-03-07 Alfa Laval Corp Ab Axially removable flanged wearplate for lobe pump
CN200968284Y (zh) * 2006-05-26 2007-10-31 陈宝琛 旋转活塞泵
DE102006041633A1 (de) * 2006-09-05 2008-03-13 Herold & Co. Gmbh Pumpe
US8082784B2 (en) * 2008-06-16 2011-12-27 Romet Limited Rotary meter flexible edge impeller assembly
US20100040499A1 (en) * 2008-08-14 2010-02-18 General Electric Company Screw pump rotors and ring seals for screw pump rotors
DE102008045440B4 (de) * 2008-09-02 2017-02-09 Börger GmbH Drehkolben einer Drehkolbenpumpe und Drehkolbenpumpe

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
DE202010012494U1 (de) 2011-12-15
ES2812504T3 (es) 2021-03-17
WO2012034985A3 (fr) 2013-04-25
WO2012034985A2 (fr) 2012-03-22
EP2616640A2 (fr) 2013-07-24
CN103221638A (zh) 2013-07-24
US20130209300A1 (en) 2013-08-15

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