EP3449128B1 - Pompe à cavité progressive - Google Patents

Pompe à cavité progressive Download PDF

Info

Publication number
EP3449128B1
EP3449128B1 EP17717685.6A EP17717685A EP3449128B1 EP 3449128 B1 EP3449128 B1 EP 3449128B1 EP 17717685 A EP17717685 A EP 17717685A EP 3449128 B1 EP3449128 B1 EP 3449128B1
Authority
EP
European Patent Office
Prior art keywords
pump
eccentric screw
drive wheel
screw pump
rotor
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
EP17717685.6A
Other languages
German (de)
English (en)
Other versions
EP3449128A1 (fr
Inventor
Hans Eglmeier
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.)
BSH Hausgeraete GmbH
Original Assignee
BSH Hausgeraete GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by BSH Hausgeraete GmbH filed Critical BSH Hausgeraete GmbH
Priority to PL17717685T priority Critical patent/PL3449128T3/pl
Publication of EP3449128A1 publication Critical patent/EP3449128A1/fr
Application granted granted Critical
Publication of EP3449128B1 publication Critical patent/EP3449128B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

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
    • F04C2/10—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member
    • F04C2/107—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member with helical teeth
    • F04C2/1071—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member with helical teeth the inner and outer member having a different number of threads and one of the two being made of elastic materials, e.g. Moineau type
    • F04C2/1073—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member with helical teeth the inner and outer member having a different number of threads and one of the two being made of elastic materials, e.g. Moineau type where one member is stationary while the other member rotates and orbits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
    • F04C15/0057—Driving elements, brakes, couplings, transmission specially adapted for machines or pumps
    • F04C15/0061—Means for transmitting movement from the prime mover to driven parts of the pump, e.g. clutches, couplings, transmissions
    • F04C15/0065—Means for transmitting movement from the prime mover to driven parts of the pump, e.g. clutches, couplings, transmissions for eccentric movement

Definitions

  • the present invention relates to an eccentric screw pump, in particular an eccentric screw pump for a metering system for a domestic appliance, for example a washing machine.
  • metering pumps for fluids, in particular for liquid detergents, are of interest in order to be used as part of a metering system in domestic appliances.
  • metering systems with metering pumps in different variants are known, such as volume pumps in the form of gear pumps, hose pumps, or piston pumps.
  • the disclosure document GB 2 120 729 A describes a screw pump.
  • EP 0 003 676 A1 shows an inner-axis machine with a helical profile on the rotor and in the stator.
  • eccentric screw pumps are also known. From the pamphlet DE 10212184A1 it is known, for example, to use an eccentric screw pump in a commercial washing machine in order to supply a paste-like detergent concentrate from a container of the commercial washing machine.
  • an eccentric screw pump in principle only has a single moving part, it is relatively inexpensive and robust and should therefore in principle be well suited for use in household appliances, in particular as a metering pump.
  • the simplicity of an eccentric screw pump requires a relatively complicated drive, since a two-dimensional movement of the rotor of the eccentric screw pump must be implemented, which consists of a superimposition of a self-rotation of the rotor and a counter-rotation of the rotor axis on a cylinder jacket with the same frequency.
  • Drives of known eccentric screw pumps are hardly suitable for being used as part of a metering pump in a household appliance, in particular a washing machine, because of their complexity and the associated costs.
  • the present invention is based on the object of providing an eccentric screw pump with a simply constructed and inexpensive drive system,
  • the eccentric screw pump - apart from the drive system - has only a single moving part for conveying a fluid and the drive system is suitable for realizing the two-dimensional movement of a rotor of the eccentric screw pump.
  • the object is achieved by means of an eccentric screw pump according to claim 1.
  • the eccentric screw pump is designed as a 2: 1 hypocycloid eccentric screw pump, the 2: 1 hypocycloid being defined by a first circle with a radius R, which rolls off slip-free on the inside of a second circle with a radius 2R.
  • the pump rotor is attached eccentrically to the drive wheel in such a way that the longitudinal axis of the pump rotor runs at a distance R from the center point of the drive wheel.
  • the drive wheel is a gear and the eccentric screw pump further comprises a drive screw which is designed to drive the drive wheel.
  • the drive wheel has a circular circumference.
  • the drive wheel is a crown wheel with teeth or cylindrical pins.
  • the drive wheel is a bevel gear.
  • the drive wheel comprises a groove-like toothing.
  • the drive wheel has a kidney-shaped circumference and the eccentric screw pump further comprises a motor-side drive wheel which is designed to drive the drive wheel.
  • the pump rotor and the pump stator have a respective shape which defines a periodicity along the longitudinal axis of the pump rotor, the length of the pump rotor and the pump stator corresponding to at least one period along the longitudinal axis of the pump stator.
  • a domestic appliance in particular a washing machine, with an eccentric screw pump according to the first aspect of the invention is provided.
  • Figure 1 illustrates the kinematics of a rotor 107 relative to a stator 109, as it is in an eccentric screw pump 100 according to a detailed below, in particular in connection with the Figures 6 to 9 described embodiment of the invention is realized, which is a 2: 1 hypocycloid eccentric screw pump 100.
  • the movement of the rotor 107 can be described by means of a first circle 10 with a radius R, which is in a second circle 20, which is twice as large as the first circle 10 (i.e. with a radius 2R; hence the Ratio 2: 1), unrolls without slippage.
  • the eccentricity of the movement of the rotor 107 corresponds to the radius R of the first rolling circle 10.
  • the center of the rolling first circle 10, ie the center of the rotor 107 (or in the plan view of FIG Figures 1 to 3 the point of penetration of the longitudinal axis of the rotor 107) describes a further circle during its movement, which is concentric with the second circle 20 and from which in Figure 1 a section is indicated by the curved arrow.
  • the diameter of the further circle described by the first circle 10 corresponds, as it were, to the "piston stroke" of the eccentric screw pump 100, as will be seen below in connection with FIG Figure 5 continues.
  • the illustrated kinematics of the eccentric screw pump 100 can be implemented by means of a kinematic model that is shown in Figure 2 is shown.
  • This kinematic model consists of a coupling 101 which has a fixed length 2R and at the two ends of which a sliding element 102a, 102b is articulated to the coupling 101.
  • the first sliding element 102a is guided along the y-axis and the second sliding element 102b is guided along the orthogonal x-axis of a Cartesian coordinate system.
  • the coupling 101 corresponds to the diameter of the first circle 10 of Figure 1 , so has a length of 2R.
  • the center of the coupling 101 executes a circular movement with the radius R around the origin of the coordinate system which coincides with the center of the second circle 20.
  • the first and the second sliding element 102a, 102b each perform a linear oscillation with the amplitude 2R along the y-axis and the x-axis, the oscillation of the first sliding element 102a being 90 ° out of phase the oscillation of the second slide member 102b takes place.
  • the eccentric screw pump 100 is designed such that the center point of the coupling 101 of the kinematic model of Figure 2 coincides with the longitudinal axis of the rotor 107 (more precisely with the point of penetration of the longitudinal axis) of the eccentric screw pump 100.
  • Figure 5 which shows a cross-sectional view of the pump stator 109 and the pump rotor 107 of the eccentric screw pump 100 according to such an embodiment, there is a circular rotor cross-section in a slot-shaped stator cross-section in each cross-section perpendicular to the longitudinal axis of the pump rotor 107.
  • Figure 5 a cross-sectional view at a height along the longitudinal axis of the rotor 107, which corresponds to a guidance of the rotor 107 by the stator 109 in the x-direction analogous to the guidance of the second sliding element 102b of FIG Figure 2 is equivalent to.
  • a guide of the rotor 107 is defined by the stator 109 in a respective direction which, for example, is orthogonal to the guide of Figure 5 runs, ie a guide in the y-direction analogous to the guide of the first sliding element 102a of FIG Figure 1 , or at a different angle to it.
  • the point P1 is the center point of the pump stator 109.
  • Each cross section of the stator 109 has the point P1 as the center of symmetry.
  • the point P3 is located at a distance 2R from the center point of the stator 109, that is to say from the point P1, in the illustrated phase, that is to say at the illustrated height, on the x-axis.
  • this point P3 on the rotor 107 performs an oscillation along the x-axis with the amplitude 2R, ie a "piston stroke" totaling 4R for the cross section shown here by way of example.
  • the point P3 corresponds to the center of the circle of the rotor cross-section.
  • the center of the circle of the drive wheel 103 ie the center of the circle, is located at this point P3 Drive wheel axle runs through this point.
  • the drive wheel 103 executes a movement oscillating in the x direction in the reference system of the stator 109.
  • the rotor axis runs through the point P2, which is at a distance R from the stator center point P1.
  • this point P2 moves in the reference system of the stator 109 on a circle with radius R around the stator center point P1.
  • the point P2 moves on a circle with radius R around the center of the circle of the rotor cross-section, that is to say around the point P3.
  • the pin described may be attached to the drive wheel 103, which serves to generate an axial force on the rotor 107. With such an attachment, the pin executes a circular movement in the reference system of the stator 109 (in Figure 7 the circle of movement of the pivot center point is shown).
  • points P1, P2 and P3 correspond to in Figure 2 , which, however, corresponds to a different orientation of the rotor 107 (namely an orientation with an angle ⁇ of approximately 60 °), the center of the large circle 20 (P1), ie the stator center, the center of the coupling 101 (P2), ie the im Reference system of the stator 109 on a circle with radius R around the stator center point revolving rotor axis, and the articulation point of the second sliding element 102b (P3), ie the center point of the rotor cross section oscillating along the x-axis.
  • embodiments of the invention according to the invention include a drive mechanism which is the same as that shown in FIG Figure 1 and the kinematic model of Figure 2
  • the illustrated movement of the rotor 107 is generated or transmitted to the rotor 107 by means of a centric rotation.
  • Figure 3 illustrates an implementation of the kinematic model of FIG Figure 2 as part of a drive mechanism of the eccentric screw pump 100 according to one embodiment.
  • the drive mechanism comprises a round drive wheel in the form of a gear 103 and a cylindrical drive worm 105 which is designed to interact in a known manner with the teeth of the gear 103 (including the exemplary tooth 103a) in such a way that a Drive motor The rotational movement of the drive worm 105 caused results in a rotation of the gear 103.
  • a centric attachment of the round gear 103 leads to the point in the kinematic model of Figure 2 corresponds to the position of the first sliding element 102a (ie the center of the gear wheel 103 is located at the pivot point of the first sliding element 102a), in addition to the fact that the gear wheel 103 simultaneously executes an oscillation in the y-direction with an amplitude of 2R when it rotates about its center, there is no movement of the gear wheel 103 in the x direction.
  • the person skilled in the art will recognize that the length of the coupling 101 in relation to the radius of the drive wheel 103 in embodiments of the invention can be significantly smaller than in FIG Figure 3 shown.
  • Figure 3 also shows a distance m between the longitudinal axis of the drive worm 105, which has a half diameter d / 2.
  • the drive wheel 103 is thus fixed centrally at the point that is shown in the kinematic model of FIG Figure 2 corresponds to the position of the first sliding element 102a, and the pump rotor 107 is connected to the drive wheel 103 in such a way that the coupling 101 coincides with the diameter of the pump rotor 107 or the center point of the coupling 101 coincides with the longitudinal axis of the pump rotor 107.
  • the pump rotor is eccentrically attached to the drive wheel 103 at a distance R from the center thereof.
  • the cylindrical drive worm 105 which is arranged parallel to the y-axis at a suitable distance m, can, as in a conventional worm drive, achieve a self-rotation of the gear 103 by rotating around its axis, while at the same time the gear 103 moves along the drive worm 105 moved back and forth in an oscillation with amplitude 2R.
  • Figure 4 4 shows the relative positions of the drive wheel 103 to the drive screw 105 of the eccentric screw pump 100 according to one embodiment with a full revolution of the drive wheel 103.
  • the coupling and the sliding elements in the views of Figure 4 are not actually present in the eccentric screw pump 100, but merely serve to illustrate that the kinematic model of Figure 2 is realized.
  • the movement of the pump rotor 107 of the eccentric screw pump 100 can be thought of as the movement of the circle, the diameter of which is defined by the coupling, as already described above.
  • the different views of Figure 4 illustrate once again that with a full revolution of the drive wheel 103 its center moves back and forth with an oscillating only in the y-direction, i.e. the vertical direction, but no movement in the x-direction, that is, the horizontal direction, i.e. in particular the distance between the center of the drive wheel 103 and the longitudinal axis of the drive worm 105 does not change.
  • the Figures 6 to 9 show different views of an embodiment of the eccentric pump worm 100, namely a perspective view, a top view, a longitudinal section and a perspective sectional view.
  • the drive wheel 103 is designed as a spur gear 103 with helical teeth, for example the tooth 103a, which can be driven by the drive screw 105 designed as a cylindrical screw.
  • the eccentric attachment of the pump rotor 107 to the drive wheel 103 can be seen, for example, from the top view of FIG Figure 7 remove. It should be noted here that the center point of the pin protruding upwards on the gearwheel 103 is not the fulcrum around which the gearwheel 103 rotates (eccentrically), since, as already described above in connection with Figure 5 described, the pin executes a circular motion while the gear 103 rotates about its geometric center.
  • the pin can serve to press the pump rotor 107 axially into the pump stator 109 by means of a pressure plate. The pin slides with the aforementioned movement on the pressure plate.
  • the illustrated longitudinal section through the eccentric screw pump 100 shows the pump rotor 107 in one Orientation in which the maximum eccentricity of the drive wheel 103 lies straight in the plane of the drawing.
  • the pump rotor 107 is formed in one piece with the drive wheel 103. Furthermore, a portion of the pump stator 109 (in Figure 8 the upper section of the pump stator 109) is designed as part of a housing that serves as a bearing for the drive wheel 103 and / or the pump rotor 107, and that enables the above-described oscillating movement of the drive wheel 103.
  • the pump stator 109 further comprises an outlet 113 for discharging a pumped fluid and a leakage outlet 111.
  • the leakage outlet 111 serves to be able to discharge fluid delivered by the eccentric screw pump 100 that emerges from the sealing shoulder below the drive wheel 103.
  • Both the shape of the pump rotor 107 and the corresponding shape of the pump stator 109 have a periodicity along the longitudinal axis of the pump rotor 107, the rotor period generally being half the stator period.
  • the length of the pump rotor 107 and the pump stator 109 corresponds to that in FIG Figures 6 to 9
  • the illustrated embodiment of the eccentric screw pump 100 has approximately 3.8 rotor periods along the longitudinal axis of the pump rotor 107, which corresponds to 1.9 stator periods.
  • the length of the pump rotor 107 and the pump stator 109 should correspond to at least one period along the longitudinal axis of the pump stator 109, ie one stator period.
  • Eccentricity of the eccentric screw pump 100 i.e. distance of the longitudinal axis of the rotor 107 from the center of the drive wheel 103
  • R 2 mm
  • these values result in an overall movement in which the fluctuations caused by the oscillation of the gearwheel 103, for example in the torque or in the rotor speed, are comparatively small and can be accepted without practical restrictions in relation to, for example, smooth running.
  • the drive wheel 103 can also be designed as a crown gear with teeth or cylindrical pins, as a bevel gear, in particular in a globoid version, or as a globoid gear.
  • the toothing of the drive wheel 103 for example designed as a spur wheel, can be shaped like a flute.
  • the globoid variant can also be used on the other gear wheel shapes.
  • a spur gear for example, can also be used for the drive on the motor side.
  • Figure 10 shows a schematic top view of a circular motor-side drive wheel 205 and a drive wheel 203 of the pump rotor 107 of the eccentric screw pump 100.
  • the circumference of the drive wheel 203 of the pump rotor 107 is essentially kidney-shaped.
  • the eccentric screw pump 100 has, inter alia, the following advantages.
  • the eccentric screw pump 100 according to the invention has (apart from the drive screw 105 or the drive wheel 205) only a single moving part, namely the pump rotor 107 together with the drive wheel 103, which, as described above, can also be formed in one piece. No additional component is required in the eccentric screw pump 100 according to the invention to compensate for the eccentric movement. So this is a technically simple one Solution to be realized, especially since the only moving part, ie the pump rotor 107 in connection with the drive wheel 103 of the eccentric screw pump 100, can be made rigid (not elastic).
  • the eccentric screw pump 100 according to the invention can be made very compact, since the eccentric compensation required in conventional pumps, for example in the form of a cardan shaft, can be omitted, which as a rule requires a great length. With a given installation space, the overall length saved in the eccentric screw pump 100 according to the invention can be converted into additional length of a pump cell.
  • the eccentric screw pump 100 can be designed in a correspondingly fluid-tight manner and thus dose more precisely, ie the The actual volume flow corresponds better to the nominal volume flow (in practice, a minimum slip is usually unavoidable).
  • a greater gap size between the rotor 107 and the stator 109 of the eccentric screw pump 100 according to the invention can be used, which leads to a reduction in the required accuracy of the components and thus ultimately to a Reduction in the cost of the eccentric screw pump 100 leads to a given metering accuracy.
  • eccentric screw pump 100 in contrast to eccentric screw pumps with elastic couplings, e.g. a spring bar coupling or a cardan shaft with elastic joints, only a slight additional bearing load occurs, since no transverse forces are generated.
  • the components of the eccentric screw pump 100 according to the invention are therefore not subject to any component fatigue due to strong alternating bending stress.
  • the combination of rotor 107 and stator 109 of the eccentric screw pump 100 according to the invention enables exactly the above based on the kinematic model of FIG Figure 2 described movement. Since the drive wheel 103 performs this movement, no additional bearing is required in the eccentric screw pump 100 according to the invention. at In embodiments of the eccentric screw pump 100, this area can only serve as a seal with a correspondingly selected fluid guide.
  • the drive wheel 103 in the form of a gear can be connected to the drive worm 105 in any phase, ie in any angular orientation.
  • the gear wheel 103 it is therefore not necessary to observe a special angular orientation of the gear wheel 103 relative to the drive worm 105, which significantly simplifies assembly and reduces assembly costs compared to pump designs in which the drive wheel must be assembled in the correct phase.

Landscapes

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

Claims (11)

  1. Pompe à vis excentrique (100) avec un rotor de pompe (107) et un stator de pompe (109), dans laquelle le stator de pompe (109) définit une cavité, dans laquelle au moins une partie du rotor de pompe (107) est disposée en rotation, et le rotor de pompe (107) est formé afin d'être mu par une roue d'entraînement (103, 203) afin de déplacer un fluide, dans laquelle le rotor de pompe (107) est apposé de façon excentrique sur la roue d'entraînement (103, 203), dans laquelle le rotor de pompe (107) et la roue d'entraînement (103, 203) sont formées en une seule pièce, caractérisée en ce que le stator de pompe (109) comprend un palier formé afin de recevoir de façon portante la roue d'entraînement (103, 203) et/ou le rotor de pompe (107), dans laquelle le palier est une section du stator de pompe (109), dans laquelle le stator de pompe (109) définit une sortie (113) pour l'évacuation du fluide déplacé, dans laquelle le stator de pompe (109) comprend une sortie de fuite (111), pour permettre d'évacuer le fluide déplacé par la pompe à vis excentrique (100) et qui sort d'un épaulement d'étanchéité sous la roue d'entraînement (103).
  2. Pompe à vis excentrique (100) selon la revendication 1, caractérisée en ce que la pompe à vis excentrique (100) est formée sous la forme d'une pompe à vis excentrique hypocycloïde 2:1 (100), dans laquelle l'hypocycloïde 2:1 est définie par un premier cercle (10) avec un rayon R, qui se déroule sans glissement sur le côté intérieur d'un deuxième cercle (20) de rayon 2R.
  3. Pompe à vis excentrique (100) selon la revendication 1 ou 2, caractérisée en ce que le rotor de pompe (107) est fixé de telle façon excentriquement sur la roue d'entraînement (103, 203) que l'axe longitudinal du rotor de pompe (107) s'étend selon un écartement R par rapport au point central de la roue d'entraînement (103, 203).
  4. Pompe à vis excentrique (100) selon l'une des revendications précédentes, caractérisée en ce que la roue d'entraînement (103) est une roue dentée et la pompe à vis excentrique (100) comprend en outre une vis sans fin d'entraînement (105) formée afin d'entraîner la roue d'entraînement (103).
  5. Pompe à vis excentrique (100) selon la revendication 4, caractérisée en ce que la roue d'entraînement (103) présente une circonférence circulaire.
  6. Pompe à vis excentrique (100) selon l'une des revendications précédentes, caractérisée en ce que la roue d'entraînement (103) est une roue de chant dentée ou avec tourillon cylindrique.
  7. Pompe à vis excentrique (100) selon l'une des revendications précédentes, caractérisée en ce que la roue d'entraînement (103) est une roue conique.
  8. Pompe à vis excentrique (100) selon la revendication 7, caractérisée en ce que la roue d'entraînement comprend une denture à gorges.
  9. Pompe à vis excentrique (100) selon l'une des revendications 1 à 3, caractérisée en ce que la roue d'entraînement (203) présente une circonférence réniforme et la pompe à vis excentrique (100) comprend en outre une roue d'entraînement côté moteur (205) formée afin d'entraîner la roue d'entraînement (103).
  10. Pompe à vis excentrique (100) selon l'une des revendications précédentes, caractérisée en ce que le rotor de pompe (107) et le stator de pompe (109) présentent une forme respective, qui définit une périodicité le long de l'axe longitudinal du rotor de pompe (107), dans laquelle la longueur du rotor de pompe (107) et du stator de pompe (109) correspondent au moins à une période le long de l'axe longitudinal du stator de pompe (109).
  11. Appareil ménager, en particulier lave-linge, avec une pompe à vis excentrique (100) selon l'une des revendications précédentes.
EP17717685.6A 2016-04-28 2017-04-12 Pompe à cavité progressive Active EP3449128B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL17717685T PL3449128T3 (pl) 2016-04-28 2017-04-12 Pompa śrubowa jednowirnikowa

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102016207247.1A DE102016207247A1 (de) 2016-04-28 2016-04-28 Exzenterschneckenpumpe
PCT/EP2017/058807 WO2017186497A1 (fr) 2016-04-28 2017-04-12 Pompe à cavité progressive

Publications (2)

Publication Number Publication Date
EP3449128A1 EP3449128A1 (fr) 2019-03-06
EP3449128B1 true EP3449128B1 (fr) 2021-11-17

Family

ID=58548694

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17717685.6A Active EP3449128B1 (fr) 2016-04-28 2017-04-12 Pompe à cavité progressive

Country Status (5)

Country Link
EP (1) EP3449128B1 (fr)
CN (1) CN109072904B (fr)
DE (1) DE102016207247A1 (fr)
PL (1) PL3449128T3 (fr)
WO (1) WO2017186497A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111120298B (zh) * 2019-12-16 2020-09-25 大庆市华禹石油机械制造有限公司 一种基于偏心传动的泵

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2483370A (en) * 1946-06-18 1949-09-27 Robbins & Myers Helical multiple pump
ZA79440B (en) * 1978-02-10 1980-09-24 Oakes Ltd E T Drive arrangement
GB2120729B (en) * 1982-05-21 1985-07-24 Mono Pumps Ltd Helical gear pump
JPS6196193A (ja) * 1984-10-17 1986-05-14 Heishin Sobi Kk 一軸偏心ねじポンプの駆動装置
CN2345736Y (zh) * 1998-06-11 1999-10-27 中国科学院大连化学物理研究所 一种螺杆泵
DE10212184A1 (de) 2002-03-20 2003-10-09 Ecolab Gmbh & Co Ohg Verfahren zum Dosieren eines pastösen Waschmittelkonzentrats
DE10243674B3 (de) * 2002-09-20 2004-04-01 Netzsch-Mohnopumpen Gmbh Exzenterschneckenpumpe mit Reservestator
JP5070515B2 (ja) * 2007-03-08 2012-11-14 兵神装備株式会社 ロータ駆動機構及びポンプ装置
GB2454700B (en) * 2007-11-15 2013-05-15 Schlumberger Holdings Work extraction from downhole progressive cavity devices
CN202560176U (zh) * 2012-05-14 2012-11-28 大庆永磁电机制造有限公司 一种带渗漏液溢流系统的螺杆泵直驱装置
JP6188015B2 (ja) * 2013-05-21 2017-08-30 兵神装備株式会社 一軸偏心ねじポンプ
DE102013111716B3 (de) * 2013-10-24 2015-03-19 Netzsch Pumpen & Systeme Gmbh Exzenterschneckenpumpe und Verwendung einer Exzenterschneckenpumpe
CN103711691A (zh) * 2014-01-06 2014-04-09 中国石油大学(华东) 可平衡轴向力和径向力的单螺杆泵
CN205135988U (zh) * 2015-11-23 2016-04-06 重庆高研泵业有限公司 安全螺杆泵

Also Published As

Publication number Publication date
WO2017186497A1 (fr) 2017-11-02
DE102016207247A1 (de) 2017-11-02
CN109072904B (zh) 2020-01-10
PL3449128T3 (pl) 2022-03-28
CN109072904A (zh) 2018-12-21
EP3449128A1 (fr) 2019-03-06

Similar Documents

Publication Publication Date Title
EP2735768B1 (fr) Démultiplicateur avec rapport de réduction élevé
DE29703656U1 (de) Füllstücklose Innenzahnradpumpe
EP2496851A1 (fr) Système de palier d'arbre réglable radialement
DE102013020431B4 (de) Drehzahluntersetzungsvorrichtung
EP3449127B1 (fr) Appareil électroménager
EP3449128B1 (fr) Pompe à cavité progressive
DE69623163T2 (de) Drehantrieb
DE10052779A1 (de) Füllstücklose Innenzahnradpumpe
EP4488523B1 (fr) Pompe à vis sans fin excentrique
EP0607497B1 (fr) Pompe à engrenages internes avec joint d'étanchéité incorporé dans les dents
DE2547994A1 (de) Zahnradpumpe oder -motor
EP3449143A1 (fr) Accouplement à barrettes ressort et rotor pour une pompe de dosage d'un appareil électroménager
WO2017016664A1 (fr) Excitatrice et machine vibrante avec excitatrice
DE69010513T2 (de) SYNCHRONMECHANISMUS FüR RADIALKOLBENMASCHINE.
EP2655802B1 (fr) Machine à engrenage à rapport diamètre-longueur réduit
EP0632200A1 (fr) Dispositif d'entraînement pour machine à disque en mutation
DE202010015437U1 (de) Drehkolbenpumpe mit Hohlkolben
EP3540266B1 (fr) Roue dentée ainsi qu'un élément denté pour une transmission à éléments dentés ainsi que transmission à éléments dentés correspondante
DE102014208418A1 (de) Wälzgetriebe
WO2013020546A1 (fr) Amortisseur de vibrations pour une chaîne cinématique
EP3575549B1 (fr) Pompe volumétrique rotative
DE4111897A1 (de) Gelenk-antriebswelle
EP3199227A1 (fr) Rotor de malaxage, mandrin d'entraînement, unité de malaxage et dispositif de malaxage destiné à la fabrication de matériaux de construction fluents
DE202016001015U1 (de) Hubkolbenpumpe
DE3312310C2 (fr)

Legal Events

Date Code Title Description
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: UNKNOWN

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE

PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20181128

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

DAV Request for validation of the european patent (deleted)
DAX Request for extension of the european patent (deleted)
GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20210712

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502017012039

Country of ref document: DE

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 1448270

Country of ref document: AT

Kind code of ref document: T

Effective date: 20211215

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG9D

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20211117

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20211117

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20211117

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20211117

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220217

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220317

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20211117

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220317

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220217

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20211117

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20211117

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20211117

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20220218

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20211117

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20211117

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20211117

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20211117

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20211117

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20211117

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20211117

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502017012039

Country of ref document: DE

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20220818

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20211117

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20211117

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20220412

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20220430

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20211117

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20220412

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20220430

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20220412

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20220430

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20220430

REG Reference to a national code

Ref country code: DE

Ref legal event code: R084

Ref document number: 502017012039

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20220430

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20220412

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20211117

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 1448270

Country of ref document: AT

Kind code of ref document: T

Effective date: 20220412

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20220412

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20170412

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20211117

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20211117

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: PL

Payment date: 20240402

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: TR

Payment date: 20240401

Year of fee payment: 8

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20211117

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20250430

Year of fee payment: 9

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PL

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20250412