EP3535496B1 - Pompe électrique à engrenage intérieur - Google Patents

Pompe électrique à engrenage intérieur Download PDF

Info

Publication number
EP3535496B1
EP3535496B1 EP17786856.9A EP17786856A EP3535496B1 EP 3535496 B1 EP3535496 B1 EP 3535496B1 EP 17786856 A EP17786856 A EP 17786856A EP 3535496 B1 EP3535496 B1 EP 3535496B1
Authority
EP
European Patent Office
Prior art keywords
gerotor
shaft
pump
electrically driven
chamber
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
EP17786856.9A
Other languages
German (de)
English (en)
Other versions
EP3535496A1 (fr
Inventor
Franz Pawellek
Conrad Nickel
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.)
Nidec GPM GmbH
Original Assignee
Nidec GPM 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 Nidec GPM GmbH filed Critical Nidec GPM GmbH
Publication of EP3535496A1 publication Critical patent/EP3535496A1/fr
Application granted granted Critical
Publication of EP3535496B1 publication Critical patent/EP3535496B1/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
    • F04C2/103—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 one member having simultaneously a rotational movement about its own axis and an orbital movement
    • F04C2/105—Details concerning timing or distribution valves
    • 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
    • F04C2/103—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 one member having simultaneously a rotational movement about its own axis and an orbital movement
    • 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
    • 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
    • F04C11/00—Combinations of two or more machines or pumps, each being of rotary-piston or oscillating-piston type; Pumping installations
    • F04C11/008—Enclosed motor pump units
    • 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
    • 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
    • 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
    • F04C15/06—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
    • F04C15/064—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet with inlet and outlet valves specially adapted for rotary or oscillating piston machines or pumps
    • F04C15/066—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet with inlet and outlet valves specially adapted for rotary or oscillating piston machines or pumps of the non-return type
    • F04C15/068—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet with inlet and outlet valves specially adapted for rotary or oscillating piston machines or pumps of the non-return type of the elastic type, e.g. reed valves
    • 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
    • F04C2230/00—Manufacture
    • F04C2230/60—Assembly methods
    • 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
    • F04C2240/40—Electric motor
    • 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
    • F04C2240/50—Bearings
    • F04C2240/51—Bearings for cantilever assemblies

Definitions

  • the invention relates to an electrically driven gerotor pump.
  • Electric gerotor pumps also called gear pumps
  • auxiliary devices such as oil pumps, servo pumps for steering assistance or hydraulic pumps in gearboxes.
  • a gerotor type has become established in which an outer rotor and an eccentrically arranged inner rotor are in meshing engagement via a toothing and rotate in the same direction. While the driven inner rotor pulls the outer rotor with it through the meshing engagement, displacement is effected in the toothing in a continuous, endless sequence of sickle-shaped working chambers.
  • Such a gerotor pump in a typical application configuration as an electric oil or auxiliary pump is for example in the DE 10 2015 002 353 A1 shown.
  • EP 2 336 565 A1 an electrically driven gerotor pump or gear pump, which has a compact design optimized for use as an oil pump.
  • the pumps and hydraulic circuits are subject to large temperature fluctuations, which leads to a fluctuating power requirement on the part of the electric drive depending on the viscosity of a hydraulic medium.
  • starting the pump and the circuit with a high viscosity of an oil and a low shaft speed, and especially against the resistance of a breakaway torque from a standstill requires a significantly higher electrical power than in subsequent operation.
  • one object of the invention is to create an electrically driven gerotor pump which enables the use of a more cost-effective electric motor with the same nominal output of the pump.
  • the electrically driven gerotor pump according to the invention is characterized in particular by a gerotor, which has a fixed outer gerotor element with an internal toothing that is axially delimited by two chamber walls, each chamber-forming foot section of the internal toothing being assigned a pressure valve which is connected to an outlet; and an inner gerotor element with an outer toothing, which is circumferentially guided and rotatably mounted on an eccentric section of the shaft in the outer gerotor element, so that it is in meshing engagement with the inner toothing; includes; wherein the pressure valves are formed by radial opening slots in the outer gerotor element, which are covered by clasp-shaped bent sheet metal parts with a turning section to form an annular outlet chamber around the outer gerotor element.
  • the invention thus provides for the first time an electrically driven gerotor pump with a stationary outer gerotor element and an implementation that is advantageous in terms of production technology and yet still functional for producing an arrangement of several pressure valves or check valves.
  • a design with radial Exiting displacement flows created from the working chambers, which provides a conversion of a short axial dimension of the pump with the production-technically advantageous valves.
  • an electric pump In comparison to the gerotor type conventionally used in electric pumps, in which the outer rotor is dragged along by a driven inner rotor, the construction of an electric pump according to the invention eliminates the sliding rotary movement of the outer rotor when dragged along by the inner rotor.
  • the fixed outer gerotor element achieves a significantly lower frictional resistance and a lower breakaway torque due to the omission of the moving outer rotor, especially with a high viscosity of the hydraulic medium, which also provides the lubrication of the sliding bearing.
  • the outer rotor In the gerotor type of conventional electric pumps, the outer rotor has the largest possible pair of sliding surfaces over the outer circumference, which is in contact with the viscous hydraulic medium over a large area and, in the case of a cold start, requires a particularly high torque to overcome a breakaway torque when starting.
  • the lower frictional resistance is also achieved by the internal gerotor element of the construction of the electric gerotor pump according to the invention.
  • the inner gerotor element experiences a significantly lower speed during a revolving rolling movement on the eccentrically guided circular path on the fixed inner toothing of the outer gerotor element, which is comparable to a spirograph for crayons.
  • the speed of the inner gerotor element in the construction of the electric gerotor pump according to the invention is, compared with a pump with two moving rotors, by 1 / number of the inner teeth of the outer gerotor element, i.e.
  • gerotor types with a fixed gerotor outer element are known in the prior art.
  • Such gerotor types generally have a complex structure, since a large number of check valves or pressure valves are required for separate exits from each working chamber due to the lack of circulation in the working chambers. Therefore, they are predominantly designed specifically for highly loaded hydraulic systems where there is a need to prevent backflow at rest and to maintain pressure.
  • the pumps described above with a more complex structure are from DE 44 40 782 A1 and the DE 37 16 960 A1 known, which are intended for a drive by an internal combustion engine, and have features with respect to the shaft bearing and the valve types, which are designed for stability in the displacement under high pressures are, however, disqualify the gerotor type for the present application of the task as being comparatively expensive.
  • the invention opens up a new application of a gerotor with a fixed outer gerotor element with an electric drive in a lower performance class, in which power loss due to frictional resistance is significantly more relevant, and within the framework of the economic viability of large-scale production, countermeasures such as dimensioning the Electric motor or a sensor system are severely limited.
  • the eccentric section of the shaft on which the inner gerotor element is circumferentially guided and rotatably mounted can be designed as an eccentric extension at a free end of the shaft.
  • the invention thus provides for the first time a one-sided shaft bearing on a rotating displacement pump or on a gerotor pump, in particular on one with a fixed gerotor outer element.
  • the construction of the gerotor pump according to the invention thus proposes an application-specific optimization of this gerotor type that takes into account a lower and middle hydraulic power class up to, for example, 1.5 kW.
  • the design enables a smaller axial dimension of the pump structure, which is achieved on the opposite side of the shaft bearing. According to this principle, an embodiment can therefore also be created in which an axial dimension of the pump structure ends directly with a frontal delimitation of the gerotor.
  • the omission of a second storage of the gerotor is also associated with a lower total number of components, which has a positive effect in terms of manufacturing large quantities in terms of cost optimization in terms of material costs, the work steps for manufacturing the components as well as the assembly effort of the same and ultimately the required production time.
  • a bearing of the shaft in the housing can be arranged in a single axial shaft section and the bearing can have at least two rows of rolling elements.
  • the shaft bearing has two axially adjacent rows of rolling elements, whereby tilting moments between a drive side shown on the left and a pump side shown on the right are absorbed and transferred to the pump housing.
  • a connecting section between the inlet and the chamber-forming foot sections of the internal toothing of the outer gerotor element can run through the free end of the shaft, a control slot in the eccentric extension and a radial branch to foot sections of the external toothing in the inner gerotor element.
  • the control slot provides a geometrically positively driven control which effects a connection and blocking function between the pump inlet and the working chambers depending on an angular range of increasing volumes and an angular range of decreasing volumes in the working chambers on both sides of a meshing engagement.
  • a chamber wall may close off an open axial end of the pump housing and receive a mouth of the inlet and the outlet.
  • the chamber walls on the end faces facing the gerotor can have a surface structure with a regular pattern or irregularly introduced with a depth of preferably 1 to 2 ⁇ m.
  • the tribometric properties and thus the efficiency are improved.
  • the microstructuring causes an improved deposition of the long-chain oil molecules on the material surface and ensures better adhesion of a remaining lubricating film between the sliding surfaces under pressure peaks, such as those that arise partially under transverse forces acting on the inner gerotor element.
  • the pump housing can have axial sections with cylindrical jacket surfaces on inner surfaces, which provide fixing fits to a cylindrical outer circumferential section of a shaft seal, a bearing of the shaft, at least one of the two chamber walls and the outer gerotor element.
  • This gerotor pump with the aforementioned press fits can be produced by the following steps: pressing a shaft seal, a shaft bearing including the shaft, a first end chamber wall and the fixed outer gerotor element into the pump housing in this axial order; an intermediate or subsequent pushing of an eccentric extension of the shaft into a pressed-in bearing of the inner gerotor element; a fixing of a second end chamber wall in the pump housing by pressing or welding; an interim or subsequent pressing of the other shaft end into the motor rotor; inserting and securing the motor stator including electronics and the motor cover.
  • the manufacturing effort for cutting threads and introducing grooves for seals as well as the assembly effort for screw connections, screws and seals are eliminated.
  • the gerotor pump is designed for a lower performance class, the strength and sealing of a press fit on an outlet-side chamber wall or an outlet-side pump cover can be sufficient.
  • the gerotor pump is designed for medium performance classes, e.g. from 20 to 150 bar, it may be necessary to use another connection technology, such as a welded connection, between the pump housing and a chamber wall on the outlet side as the pump cover.
  • the pump housing 1 comprises a radially inner housing section which is open on one axial side, and a radially outer housing section which is open to the other axial side.
  • a shaft seal 12, a shaft 2 with bearing 21 as well as the gerotor 3 and the chamber walls 13a, 13b are accommodated in the inner housing section.
  • the electric drive 5 with the stator 51, motor electronics 50 and the motor rotor 52 are accommodated in the outer housing section.
  • the motor rotor is connected to an end section of the shaft 2, which lies opposite the gerotor 3, and axially overlaps the inner housing section towards the center of the shaft or radially surrounds it.
  • the motor stator 51 is fixed around the motor rotor 52 against an inner surface of the outer wall of the outer housing part on the pump housing 1.
  • An open drive-side end of the pump housing 1 is closed by a motor cover 15, in which the motor electronics 50 with a circuit board, power electronics with power supply connections and a pump ECU are embedded.
  • a shaft bearing 21 is arranged between the shaft circumference and an inner jacket surface of the inner housing section.
  • the shaft bearing 21 corresponds to the type of water pump bearing known from use on centrifugal pumps.
  • the shaft bearing 21 comprises two axially adjacent rows of rolling elements 20a and 20b.
  • an eccentric shaft extension 23 extends in the axial direction further into the pump housing 1, which has a smaller circumference than the shaft circumference and whose central axis of the circumference is offset eccentrically to a shaft axis.
  • the assembly of the gerotor 3 is received in an axial extension section of the shaft extension 23 between the same and the pump housing 1.
  • the gerotor 3 comprises an outer gerotor element 31 and an inner gerotor element 30.
  • the outer gerotor element 31 is fixedly fixed in an inner jacket surface of a flange section of the pump housing 1 and has internal teeth 33a.
  • the inner gerotor element 30, which has an outer toothing 33b, is arranged on the eccentric shaft extension 23.
  • the inner gerotor element 30 is rotatably mounted on the eccentric shaft extension 23 by a slide bearing and is rotated when the shaft 2 is rotated by the eccentric offset of the shaft extension 23 to the shaft axis, i.e.
  • the axis of rotation of the shaft 2 is guided on a circular path within the fixed outer gerotor element 31.
  • the inner gerotor element 30 and the outer gerotor element 31 are in a meshing engagement that is characteristic of gerotor types.
  • the gerotor 3 is delimited axially by two chamber walls 13a and 13b, as in FIG Fig. 1 is shown.
  • the chamber walls 13a and 13b are in stationary surface contact with the end faces of the outer gerotor element 31.
  • the chamber walls 13a and 13b are in sliding contact with the end faces of the inner gerotor element 30 in the same radial area.
  • an inlet bore runs along an axis of rotation of the shaft 2 and extends as a blind bore through the chamber wall 13b into the eccentric extension 23 of the shaft 2 and at the same time forms the inlet 14 of the pump.
  • the eccentric extension 23 has a control slot 24 which, within an axial section of the gerotor inner element 30, recesses a circular arc segment from the circumference of the eccentric extension 23 into the inlet bore.
  • a radial branching of inlet channels 34 is formed, which run between an interface of the circumferential control slot 24 and the foot sections of the external toothing 33b.
  • a rotational angle range to which the control slot 24 is recessed or opened is directed on the eccentric extension 23 to that side of the meshing engagement on which the volumes of the sickle-shaped working chambers in the internal toothing 33a increase, i.e. on a rear side to the direction of rotation of the eccentric extension 23.
  • filling of the working chambers is controlled by the control slot 24 in such a way that those working chambers are always connected to the inlet 14 of the pump via an associated inlet channel 34, the volumes of which increase again after the combing engagement.
  • an extension of the angle of rotation range of the control slot 24 is selected such that a connection between the inlet 14 and such inlet channels 34, which are assigned to working chambers with decreasing volumes before and in the meshing engagement, is blocked.
  • outlet channels in the form of radial opening slots 41 are formed in the fixed outer gerotor element 31, which emerge from the base points of the internal toothing 33a.
  • the opening slots 41 are part of a plurality of check valves or pressure valves, the number of which corresponds to that of the working chambers of the internal toothing 33a.
  • the pressure valves are formed by the opening slots 41 and a plurality of resilient sheet metal bent parts 40.
  • a bent sheet metal part 40 covers the outlet-side opening of the opening slits 41 and can be pushed back from a bearing position above the opening by a predetermined pressure in each opening slit 41.
  • the bent sheet metal parts 40 have a cross section with a turning section to form a double-layered clasp shape. Strictly speaking, the bent sheet-metal parts 40 also have a bulge in a sheet-metal layer in cross-section in order to create a spacing of the free ends of the double-layered clasp shape, which causes an elastic preload corresponding to a bending beam or cantilever against the outlet opening of an opening slot 41.
  • Each bent sheet metal part 40 covers an opening slot 41 in the area of the free ends, ie opposite the turning section, and is resiliently spread apart in an annular outlet chamber 17.
  • the bent sheet metal parts 40 are fixed by means of a positive engagement between an elevation of the turning section and a corresponding recess in the circumference of the gerotor outer element 31 to prevent the hydraulic medium from flowing around in the circumferential direction.
  • the annular outlet chamber 17 is formed by an outer circumference or a circumferential step of the outer gerotor element 31 and an inner jacket section of the pump housing 1, or a ring section of the outer gerotor element 31 assigned for this purpose, and serves to collect the circumferentially emerging displacement flows and to feed them to an opening of the pump outlet 16 .
  • the chamber wall 13b receives both the pump outlet 16 and the pump inlet 14.
  • the entire pump structure can be realized without a screw connection.
  • the individual components are through the two opposite open sides of the pump housing 1 in axial order from the shaft seal 12, over the shaft 2 including shaft bearing 21, the chamber wall 13a and the gerotor outer element 31 with the bending sheet metal parts 40 in the inner Housing section of the pump housing 1 is pressed in, which for this purpose provides dimensionally accurate press fits through stepped cylindrical inner surfaces.
  • the inner gerotor element 30 together with the pressed-in sliding bearing is pushed onto the eccentric shaft extension 23.
  • the chamber wall 13b is then pressed in or welded depending on the design of the pressure area of the pump.

Landscapes

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

Claims (7)

  1. Pompe à engrenage intérieur à entraînement électrique, présentant :
    un boîtier de pompe (1) dans lequel un arbre (2) est monté de manière rotative et dans lequel un engrenage intérieur(3), une entrée (14) et une sortie (16) sont logés ;
    un entraînement électrique (5) avec un stator de moteur (51) et un rotor de moteur (52), qui est connecté à l'arbre (2) et entraîne l'engrenage intérieur (3) en rotation ;
    caractérisée en ce que
    l'engrenage intérieur (3) comprend un élément extérieur d'engrenage intérieur fixe (31) avec une denture intérieure (33a) qui est délimité axialement par deux parois de chambre (13a, 13b), dans laquelle chaque partie inférieure formant chambre de la denture intérieure (33a) est associée à une soupape de compression qui communique avec la sortie (16) ; et
    un élément intérieur d'engrenage intérieur (30) avec une denture extérieure (33b), qui est guidé circonférentiellement et monté de manière rotative sur une partie excentrique de l'arbre (2) dans l'élément extérieur d'engrenage intérieur (31), de manière à être engrené avec la denture intérieure (33a) ; dans laquelle
    les soupapes de compression sont formées par des fentes d'ouverture radiale (41) dans l'élément extérieur d'engrenage intérieur (31), qui sont recouvertes par des parties pliées en tôle en forme d'agrafe (40) avec une partie de retournement, pour former une chambre de sortie annulaire (17) autour de l'élément extérieur d'engrenage intérieur (31).
  2. Pompe à engrenage intérieur à entraînement électrique selon la revendication 1, dans laquelle
    la partie excentrique de l'arbre, sur laquelle l'élément intérieur d'engrenage intérieur (30) est guidé circonférentiellement et monté de manière rotative, est conçue sous la forme d'une extension excentrique (23) à une extrémité libre de l'arbre (2).
  3. Pompe à engrenage intérieur à entraînement électrique selon la revendication 2, dans laquelle
    un palier (21) de l'arbre (2) dans le boîtier (1) est agencé dans une partie d'arbre axiale unique et le palier (21) présente au moins deux rangées d'éléments roulants (20).
  4. Pompe à engrenage intérieur à entraînement électrique selon l'une quelconque des revendications précédentes, dans laquelle
    un passage de raccordement entre l'entrée (14) et les parties inférieures formant chambre de la denture intérieure (33a) de l'élément extérieur d'engrenage intérieur (31) à travers l'extrémité libre de l'arbre (2), une fente de commande (24) dans l'extension excentrique (23) et une ramification radiale jusqu'aux parties inférieures de la denture extérieure (33b) dans l'élément intérieur d'engrenage intérieur (30).
  5. Pompe à engrenage intérieur à entraînement électrique selon l'une quelconque des revendications précédentes, dans laquelle
    une paroi de chambre (13b) ferme une extrémité axiale ouverte du boîtier de pompe (1) et reçoit une embouchure de l'entrée (14) et de la sortie (16).
  6. Pompe à engrenage intérieur à entraînement électrique selon l'une quelconque des revendications précédentes, dans laquelle
    les parois de chambre (13a, 13b), sur les surfaces frontales qui font face à l'engrenage intérieur (3), présentent une structure de surface à motif régulier ou introduite irrégulièrement avec une profondeur de préférence de 1 à 2 µm.
  7. Pompe à engrenage intérieur à entraînement électrique selon l'une quelconque des revendications précédentes, dans laquelle
    le boîtier de pompe (1) présente sur des surfaces internes des parties axiales avec des surfaces extérieures cylindriques, qui fournissent des adaptations de fixation sur une partie périphérique extérieure cylindrique d'une garniture d'étanchéité d'arbre (12), d'un palier (21) de l'arbre (2), d'au moins une des deux parois de chambre (13a, 13b) et de l'élément extérieur d'engrenage intérieur (31).
EP17786856.9A 2016-11-07 2017-10-05 Pompe électrique à engrenage intérieur Active EP3535496B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102016121240.7A DE102016121240A1 (de) 2016-11-07 2016-11-07 Elektrische Gerotorpumpe und Herstellungsverfahren für dieselbe
PCT/EP2017/075303 WO2018082859A1 (fr) 2016-11-07 2017-10-05 Pompe électrique à engrenage intérieur et procédé de production correspondant

Publications (2)

Publication Number Publication Date
EP3535496A1 EP3535496A1 (fr) 2019-09-11
EP3535496B1 true EP3535496B1 (fr) 2020-09-02

Family

ID=60138347

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17786856.9A Active EP3535496B1 (fr) 2016-11-07 2017-10-05 Pompe électrique à engrenage intérieur

Country Status (6)

Country Link
US (1) US11092153B2 (fr)
EP (1) EP3535496B1 (fr)
JP (1) JP6843986B2 (fr)
CN (2) CN111577595B (fr)
DE (1) DE102016121240A1 (fr)
WO (1) WO2018082859A1 (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017103858B3 (de) 2017-02-24 2018-08-02 Nidec Gpm Gmbh Gerotorpumpe für flüchtige Medien
DE102017104063B4 (de) 2017-02-27 2019-11-28 Nidec Gpm Gmbh Elektrische Gerotorpumpe mit Steuerspiegel
DE102019118697A1 (de) * 2019-07-10 2021-01-14 Ipgate Ag Zahnradpumpe
US11473575B2 (en) 2020-05-15 2022-10-18 Hanon Systems EFP Canada Ltd. Dual drive vane pump
US11624363B2 (en) * 2020-05-15 2023-04-11 Hanon Systems EFP Canada Ltd. Dual drive gerotor pump
CN111622947B (zh) * 2020-07-09 2022-08-16 四川航天烽火伺服控制技术有限公司 一种补油式齿轮泵
DE102020122867A1 (de) * 2020-09-01 2022-03-03 Schwäbische Hüttenwerke Automotive GmbH Pumpen-Motor-Einheit mit integrativem Gehäusedeckel
US11680565B2 (en) * 2021-02-08 2023-06-20 Schaeffler Technologies AG & Co. KG Motor-pump system
DE102022207136A1 (de) 2022-07-12 2024-01-18 Brose Fahrzeugteile SE & Co. Kommanditgesellschaft, Würzburg Ölpumpe für ein Kraftfahrzeug
DE102022127805A1 (de) 2022-10-21 2024-05-02 Schaeffler Technologies AG & Co. KG Elektrischer Pumpenaktor
DE102023102039A1 (de) 2023-01-27 2024-08-01 Nidec Gpm Gmbh Zahnradpumpe

Family Cites Families (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1285892B (de) * 1962-02-16 1968-12-19 Hans Dipl Ing Zahnradpumpe
US3572983A (en) * 1969-11-07 1971-03-30 Germane Corp Fluid-operated motor
US3907465A (en) * 1974-08-29 1975-09-23 Hydraulic Products Inc Hydraulic power translating device
DE3444859A1 (de) * 1983-12-14 1985-06-27 Barmag Barmer Maschinenfabrik Ag, 5630 Remscheid Rotationszellenpumpe fuer hydrauliksysteme
DE3448253C2 (fr) * 1983-12-14 1991-05-16 Barmag Ag, 5630 Remscheid, De
DE3543488A1 (de) * 1985-12-09 1987-06-11 Schwaebische Huettenwerke Gmbh Zahnradpumpe
US4813858A (en) * 1986-05-20 1989-03-21 Mannesmann Rexroth Gmbh Gerotor pump with pressure valve and suction opening for each pressure chamber
DE3716960A1 (de) 1986-05-20 1987-12-10 Rexroth Mannesmann Gmbh Hydraulikpumpe
EP0475109B1 (fr) * 1990-08-20 1994-04-20 BARMAG LUK AUTOMOBILTECHNIK GMBH & CO.KG Pompe à engrenages internes pour fluide hydraulique
DE59304256D1 (de) * 1992-06-29 1996-11-28 Luk Automobiltech Gmbh & Co Kg Innenzahnradpumpe für Hydraulikflüssigkeit
IT1271052B (it) 1993-11-18 1997-05-26 Pompa ad ingranaggi interni con sporgenze volumetriche
JPH0988842A (ja) * 1995-09-28 1997-03-31 Wankel Rotary Gmbh 内転トロコイド構造の圧縮機
US6102684A (en) * 1998-09-14 2000-08-15 Walbro Corporation Cavitation noise abatement in a positive displacement fuel pump
US7278841B2 (en) * 2001-12-13 2007-10-09 Performance Pumps, Llc Gerotor pump
US6884048B2 (en) * 2002-09-26 2005-04-26 Sauer-Danfoss (Nordborg) Transition valving by means of non-return valves
CN101292087B (zh) * 2005-09-23 2010-12-08 伊顿公司 液压马达和泵的净排量控制方法
US8790095B2 (en) * 2008-10-14 2014-07-29 Jtekt Corporation Electric pump unit
JP2010159724A (ja) 2009-01-09 2010-07-22 Isuzu Motors Ltd オイルポンプ
CN101900110A (zh) * 2010-07-30 2010-12-01 上海师范大学 一种偏心双摆线转子泵
JP2012225263A (ja) 2011-04-20 2012-11-15 Jtekt Corp 電動ポンプユニット
DE102011051486B4 (de) * 2011-06-30 2023-06-01 Hnp Mikrosysteme Gmbh Pumpenanordnung mit Mikropumpe und Lagerelement
JP5511770B2 (ja) * 2011-11-08 2014-06-04 三菱電機株式会社 電動ポンプ、及び電動ポンプの製造方法
DE102014226002B4 (de) * 2014-12-16 2024-03-14 Robert Bosch Gmbh Innenzahnradpumpe
DE102015002353A1 (de) 2014-12-17 2016-06-23 Brose Fahrzeugteile GmbH & Co. Kommanditgesellschaft, Würzburg Ölpumpe und Verfahren zu deren Herstellung
DE102016121237B4 (de) * 2016-11-07 2020-03-12 Nidec Gpm Gmbh Hydraulische Gerotorpumpe und Herstellungsverfahren einer Gerotorpumpe

Non-Patent Citations (1)

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

Also Published As

Publication number Publication date
CN109983228A (zh) 2019-07-05
JP2019534419A (ja) 2019-11-28
US11092153B2 (en) 2021-08-17
JP6843986B2 (ja) 2021-03-17
US20200182241A1 (en) 2020-06-11
WO2018082859A1 (fr) 2018-05-11
CN111577595A (zh) 2020-08-25
CN111577595B (zh) 2022-04-29
CN109983228B (zh) 2020-09-11
DE102016121240A1 (de) 2018-05-09
EP3535496A1 (fr) 2019-09-11

Similar Documents

Publication Publication Date Title
EP3535496B1 (fr) Pompe électrique à engrenage intérieur
EP0848165B1 (fr) Pompe à engrenages internes
DE102016121237B4 (de) Hydraulische Gerotorpumpe und Herstellungsverfahren einer Gerotorpumpe
DE102016121241B4 (de) Hydraulischer Antrieb, hydraulischer Motor und integrierte Pumpe mit dem hydraulischen Antrieb
DE1528983B2 (de) Steuerdrehschiebereinrichtung fuer eine rotationskolbenmaschine
AT403864B (de) Kühlsystem für eine elektrische maschine
DE60011319T2 (de) Gerotormotor
EP0846861B1 (fr) Pompe annulaire à engrenages continuellement variable
DE102005033679B4 (de) Ölpumpe
EP3441613B1 (fr) Machine hydrostatique à pistons rotatifs et à engrenage
DE2921311C2 (fr)
EP0475109B1 (fr) Pompe à engrenages internes pour fluide hydraulique
EP1922487B1 (fr) Pompe volumétrique présentant un volume de transport variable
EP0761968A1 (fr) Soupape pour moteur à engrenage à denture intérieure avec palier hydrostatique
DE102016121238B4 (de) Hydraulischer Antrieb, hydraulischer Motor und Pumpe mit dem hydraulischen Antrieb
DE102005043253B4 (de) Verfahren zum Herstellen einer Verdrängerpumpe und eine danach hergestellte Verdrängerpumpe
EP0474001A1 (fr) Pompe à engrenages internes pour fluide hydraulique
WO2008125106A1 (fr) Moteur à pistons rotatifs
DE102017103858B3 (de) Gerotorpumpe für flüchtige Medien
EP4259935A1 (fr) Dispositif de pompe pour un système hydraulique d'un véhicule motorisé, système hydraulique
DE19520405C2 (de) Hydraulischer Kreiskolbenmotor
EP1461534A1 (fr) Pompe
EP3359798B1 (fr) Vanne pour un moteur à combustion interne
DE1528983C3 (de) Steuerdrehschiebereinrichtung für eine Rotationskolbenmaschine
DE102004033490A1 (de) Innenzahnradmaschine

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: 20190304

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: 20200407

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: AT

Ref legal event code: REF

Ref document number: 1309116

Country of ref document: AT

Kind code of ref document: T

Effective date: 20200915

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502017007097

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: LT

Ref legal event code: MG4D

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

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: 20201202

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: 20200902

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: 20201203

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: 20200902

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: 20200902

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: 20200902

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: 20201202

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20200902

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 FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200902

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: 20200902

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: 20200902

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

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: 20200902

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: 20200902

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: 20210104

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: 20200902

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: 20200902

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

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: 20200902

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: 20200902

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: 20210102

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502017007097

Country of ref document: DE

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

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: 20200902

Ref country code: LU

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

Effective date: 20201005

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: 20200902

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

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20201031

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

Ref country code: FR

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

Effective date: 20201102

26N No opposition filed

Effective date: 20210603

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

Ref country code: CH

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

Effective date: 20201031

Ref country code: BE

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

Effective date: 20201031

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: 20200902

Ref country code: LI

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

Effective date: 20201031

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: 20200902

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: 20200902

Ref country code: IE

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

Effective date: 20201005

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

Ref country code: DE

Payment date: 20211008

Year of fee payment: 5

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

Ref country code: TR

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: 20200902

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: 20200902

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: 20200902

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

Effective date: 20211005

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: 20200902

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

Ref country code: GB

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

Effective date: 20211005

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 502017007097

Country of ref document: DE

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

Ref country code: NL

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

Effective date: 20200923

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

Ref country code: DE

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

Effective date: 20230503

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 1309116

Country of ref document: AT

Kind code of ref document: T

Effective date: 20221005

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: 20221005