EP3084219A1 - Dispositif de pompage - Google Patents

Dispositif de pompage

Info

Publication number
EP3084219A1
EP3084219A1 EP14798766.3A EP14798766A EP3084219A1 EP 3084219 A1 EP3084219 A1 EP 3084219A1 EP 14798766 A EP14798766 A EP 14798766A EP 3084219 A1 EP3084219 A1 EP 3084219A1
Authority
EP
European Patent Office
Prior art keywords
pump
rotor
housing
housing part
pump device
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP14798766.3A
Other languages
German (de)
English (en)
Other versions
EP3084219B1 (fr
Inventor
Sando Kunath
Oliver Laforsch
Wolfgang Wettemann-Del Chin
Karel MUK
Daniel HENEBERG
Ingo Immendoerfer
Martin Kling
Evgenij Skrynski
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch 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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP3084219A1 publication Critical patent/EP3084219A1/fr
Application granted granted Critical
Publication of EP3084219B1 publication Critical patent/EP3084219B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D13/00—Pumping installations or systems
    • F04D13/02—Units comprising pumps and their driving means
    • F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
    • F04D13/0646—Units comprising pumps and their driving means the pump being electrically driven the hollow pump or motor shaft being the conduit for the working fluid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • 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
    • F04C15/0057—Driving elements, brakes, couplings, transmission specially adapted for machines or pumps
    • F04C15/008—Prime movers
    • 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
    • F04C3/00—Rotary-piston machines or pumps, with non-parallel axes of movement of co-operating members, e.g. of screw type
    • F04C3/06—Rotary-piston machines or pumps, with non-parallel axes of movement of co-operating members, e.g. of screw type the axes being arranged otherwise than at an angle of 90 degrees
    • F04C3/08—Rotary-piston machines or pumps, with non-parallel axes of movement of co-operating members, e.g. of screw type the axes being arranged otherwise than at an angle of 90 degrees of intermeshing engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D13/00—Pumping installations or systems
    • F04D13/02—Units comprising pumps and their driving means
    • F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
    • 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
    • F04C2240/60—Shafts
    • F04C2240/603—Shafts with internal channels for fluid distribution, e.g. hollow shaft

Definitions

  • the invention relates to a pump device for use as a pump, as a compressor or as a generator.
  • Pumping devices are used in many areas of industry. For example, pump devices are used as fuel pumps in
  • a pump device often used as a fuel pump is about a so-called tumble pump, in which a pump rotor offset obliquely on a pump shaft is offset by rotation of the pump shaft with respect to a rotor housing in a pivoting or wobbling motion, so that between the pump rotor and the rotor housing formed pump chambers with respect to their volume be varied.
  • these pumping chambers are connected to an inlet and an outlet.
  • the pump device may be exposed to mechanical stresses that may require a complex structure of a housing of the pump device in order to ensure sufficient stability of the housing can.
  • a robust pump device can be provided, which can be designed simplified in particular with respect to a structure of a housing. Due to the simplified design of the housing, the Pumping device are further advantageously made compact in terms of a circumference.
  • the invention relates to a pump device for conveying a medium, in particular a gaseous and / or liquid medium.
  • Pumping device can be used for example for conveying fuel in a motor vehicle.
  • the pump device can also be used for example as a compressor or generator.
  • the pump device has a rotor housing and a pump rotor guided in the rotor housing and a pump shaft coupled to the pump rotor for driving the pump rotor in the rotor housing. Furthermore, the pump device has an electric motor with a drive stator and a stator winding for driving the pump shaft.
  • the pump device further comprises a housing part, which the
  • the Drive stator having the stator winding and a passageway for supporting the pump shaft.
  • the housing part or the pump device can be designed substantially cylindrical.
  • End cover and the housing part are made in one piece.
  • the axial end may denote an end of the housing part in an axial direction, which is approximately through the pump shaft or by a
  • Rotary axis of the pump shaft can be defined.
  • the direct attachment of the rotor housing at the axial end and the one-piece design of the housing part and the end cover may allow to reduce a number of components of the pump device and associated manufacturing costs of the pump device. For example, by the direct
  • Attachment to be dispensed with an additional housing sleeve which in Conventional pump devices can serve to connect the rotor housing to the housing part.
  • the pump device as a whole can be provided in a compact manner, in particular in a compact manner with respect to a circumference or with respect to an outer diameter.
  • the absence of the additional housing sleeve can advantageously affect a cooling of the pump device, since it can be cooled directly. Also stresses in components of the housing, which can occur for example by different thermal expansion coefficients of the housing sleeve and the housing part, can be avoided.
  • components of the pump device in particular components in the interior of the pump device, during the
  • the drive stator comprises a disk set with stator teeth, on which the stator winding is provided, wherein a material is provided or arranged between the stator teeth and on end faces of the disk pack, which also forms the end cover.
  • the disk pack may be formed from disc-shaped sheets, which may be stacked on top of each other.
  • the stator teeth can be formed approximately by punching and / or recesses in the disk set or in the individual sheets of the disk set.
  • the stator teeth can thus form elements of the disk set, which radially along a circumference of the housing part can be arranged in the housing part.
  • the stator teeth can each be wrapped with at least one stator winding, so that a magnetic field for driving the electric motor can be generated by current flow through the stator winding.
  • the material surrounds the stator teeth on an inner circumference of the housing part and provides an axial sliding bearing for the pump shaft.
  • an axial sliding bearing can be formed by the material.
  • the axial sliding bearing can also define or form the inner circumference of the housing part, wherein the
  • Inner circumference can form a boundary of the passage channel in which the pump shaft can be stored. Due to the formation of the axial slide bearing with the material, a radial sealing tightness of the housing part can furthermore be ensured so that the conveyed medium does not escape from the housing
  • the axial sliding bearing can be a plain bearing, which extend over at least a portion of the pump shaft in the axial direction and can enclose the pump shaft radially.
  • the plain bearing can be lubricated, for example, with the funded by the pump device medium to friction losses and heat generation through
  • the material comprises plastic.
  • the disk set of the drive stator can be cast in about in an injection molding in plastic, so that between the stator teeth, to the
  • the pump shaft has recesses along a circumference, in which magnets of a drive rotor of the electric motor are arranged.
  • the pump shaft may include the drive rotor.
  • the recesses of the pump shaft may be approximately spaced along a circumference of the pump shaft in the direction of rotation of the pump shaft.
  • the housing part at the axial end mounting holes which are designed to cooperate with openings in the rotor housing.
  • the rotor housing is provided with a
  • Openings and the fastening openings can be configured approximately as cylindrical recesses and / or bores and / or channels.
  • the mounting openings of the housing part and the openings of the rotor housing (104) are arranged in an axial direction of the pump device, and the fastening means (142) comprises a compound selected from the group consisting of
  • the openings and the attachment openings may extend in the axial direction, and the attachment means for the rotor housing may be, for example, a screw connection and / or a riveted connection. Also, a pin member engage by means of a press connection in the corresponding openings and serve to fasten the rotor housing.
  • An attachment of the rotor housing with a fastener, such as a screw connection, can advantageously simplify assembly and reduce the risk of damage to components of the pump device due to forces occurring during assembly.
  • the rotor housing is glued to the housing part. Sticking of the rotor housing can advantageously affect a tightness of the pump device.
  • the rotor housing may be glued to the housing part as an alternative or in addition to the fastening means through the openings and the mounting holes.
  • the end cover provides an outlet for discharging the medium from the pump device and a contact element for electrically contacting the pump device.
  • the contact element may be about an electrical terminal and / or an electrical socket and / or an electrical connector, so that with the Contact element an electrical connection, for example with a
  • Control unit can be manufactured.
  • the end cap may further provide a radial sliding bearing for the pump shaft on which the pump shaft may be rotatably supported.
  • the outlet may, for example, have an outlet opening, via which the medium can be removed from the pump device and fed to a consumer, for example.
  • the pump shaft has a hollow conduit, so that the medium can be conveyed through the hollow conduit of the pump shaft in the direction of the outlet of the end cap.
  • the pump shaft has an oblique face on which the pump rotor is deposited so that rotation of the pump shaft results in pivoting of the pump rotor with respect to the rotor housing, thereby forming at least one pump chamber formed between the rotor housing and the pump rotor is increased and decreased so that the medium is conveyed by the pump device.
  • the rotor housing and the pump rotor can, for example, have spherical surfaces sliding off one another in which one or more
  • Pump chambers can be formed.
  • the pump chamber can be formed between a spherical surface lying inside with respect to the axis of rotation of the pump shaft and an outer spherical surface.
  • the pump rotor may be offset on the inclined surface of the rotor housing, wherein the end face may be oblique with respect to a direction orthogonal to the axial direction, i. the inclined end face can be tilted or pivoted in the axial direction.
  • a volume of the pump chamber can thus be varied by the bearing of the pump rotor on the oblique face and by the successive sliding spherical surfaces, i. be increased or decreased, the medium can be promoted.
  • the rotor housing may further comprise an inlet with an inlet opening through which the medium during rotation of the
  • Pump shaft are inserted into the pump chamber of the pump device can.
  • the medium can then be transported via the hollow conduit of the pump shaft in the direction of the outlet of the end cap to the outlet opening and be discharged through this out of the pump device.
  • Embodiments of the pump device are described. A person skilled in the art recognizes that the features described can be suitably combined or exchanged in order to arrive at further embodiments and, if appropriate, synergy effects.
  • Fig. 1 shows schematically a section through a pump device according to an embodiment of the invention.
  • Fig. 2 shows schematically a section through a pump device according to an alternative embodiment.
  • Fig. 3 shows schematically a section through a pump device according to a further alternative embodiment.
  • Fig. 1 shows schematically a section through a pump device 100 according to an embodiment of the invention.
  • the cut runs along a median plane in an axial direction 113 through the pump device 100.
  • the pump device 100 has a substantially cylindrical
  • the housing part 102 and the end cover 104 are configured in one piece.
  • End cover 104 and the housing part 102 may be approximately in one
  • Casting be made integrally.
  • the end cover 104 has a contact element 106 for electrically contacting the pump device 100, for example with a control device, and an outlet 108 for discharging a medium conveyed by the pump device 100.
  • the medium may be about gaseous or liquid.
  • the contact element 106 may be about an electrical terminal and / or an electrical socket, which is connected to a corresponding plug of the
  • Control unit can be connected.
  • the pump device 100 further includes a lid-like rotor housing 110 having an inlet 103. Via the inlet 103, the medium in the
  • an electric motor 112 is further integrated, which is designed to drive a pump shaft 114 which is mounted in a passage 115 of the housing part 102.
  • a course of the pump shaft 114 can define the axial direction 113 of the pump device 100.
  • the electric motor 112 shown in FIG. 1 has a drive stator 116 integrated in the housing part 102 for driving the pump shaft 114.
  • the drive stator 116 in this case comprises a disk set 118 with stator teeth 120.
  • the stator teeth 120 can thereby run along a circumference of the stator
  • Housing part 102 may be integrated into the housing part 102 and of a
  • one or more recesses 122 are introduced into the pump shaft 114 along a circumference of the pump shaft 114, in which in turn magnets 124 are arranged.
  • the magnets 124 may be arranged in alignment in the recesses 122 of the pump shaft 114, so that the pump shaft 114 with the magnets 124 is a cylindrical
  • stator teeth 120 of the drive stator 116 generated magnetic field can interact with the magnets 124, whereby the pump shaft 114 can be set in rotation, the pump shaft 114 itself includes a drive rotor 126 of the electric motor 112. Between the stator teeth 120 and at end faces 128 and 130 of the
  • Disc pack 118 a material 132 is arranged or the disc pack 118 is embedded with the stator teeth 120 in the material 132.
  • the material 132 may be about plastic.
  • the material 132 also forms the
  • the material 132 encloses on an inner circumference 134 of the
  • the axial sliding bearing 136 may be about a lubricated by the medium to be conveyed gap between the pump shaft 114 and the housing part 102. To keep friction losses low, is the
  • Pump shaft 114 also rotatable about a sliding bearing 138 on the
  • End cover 104 stored.
  • the pump shaft 114 On a side opposite the end cover 104 side of the pump shaft 114, the pump shaft 114 has an oblique face 140 on which a pump rotor 142 is stored. On one of the oblique face 140
  • the pump rotor 142 is deposited with a sliding bearing 144 on the rotor housing 110 and rotatably supported.
  • the pump rotor 142 has a spherical surface 146, which on a spherical surface 146 cooperatively designed spherical surface 148 of the
  • Rotor housing 110 can slide. Between the spherical surfaces 146, 148, a (or more) pumping chamber 150 is formed. During rotation of the
  • Pump shaft 114 is thus varied by the bearing of the pump rotor 142 on the inclined end face 140 and by the successive sliding spherical surfaces 146, 148, a volume of the pump chamber 150, ie increased or decreased.
  • the spherical surface 148 of the rotor housing 110 thus adjusts to a Inside the rotor housing 110 a toothing ready, with the
  • Ball surface 146 of the pump rotor 142 cooperates, so that the volume of the pump chamber 150 varies and the medium is conveyed by the pump device 100.
  • the medium is through the inlet 103 of the
  • Rotor housing 110 introduced into the pump chamber 150 and from there into a hollow conduit 152 in the center of the pump shaft 114 to the outlet 108 of
  • End cover 104 promoted.
  • the rotor housing 110 is connected directly to the housing part 102 at an axial end 154.
  • the rotor housing 110 openings 156 and the housing part 102 has at the axial end 154 mounting holes 158, which cooperating with the openings 156 of the rotor housing 110, approximately aligned, are configured.
  • the openings 156 of the rotor housing 110 and the attachment openings 158 of the housing part 102 extend in the axial direction 113.
  • Rotor housing 110 is connected by fasteners 160 through the openings 156 of the rotor housing 110 and the mounting holes 158 of the housing part 102 directly to the housing part 102.
  • the fastening means 160 of the pump device 100 shown in FIG. 1 are screwed connections, wherein the fastening openings 158 of the housing part 102 have a thread which is designed to cooperate with a thread of the fastening means 160.
  • the fasteners 160 may also be a rivet or a
  • Be pin member which can be fixed by means of press connection to the housing part 102.
  • the rotor housing 110 may also be connected to the axial end 154 with the
  • FIG. 2 schematically shows a section in the axial direction 113 along a median plane through a pump device 100 according to an alternative embodiment.
  • the pumping device 100 of FIG. 2 may have the same elements and properties as the pumping devices 100 of FIG. 1.
  • the rotor housing 110 of the pump apparatus 100 of FIG. 2 is attached directly to an axial end 154 of the housing part 102.
  • the rotor housing 110 may be glued to the housing part 102 at the axial end 154.
  • the rotor housing 110 may also be connected to the housing part 102, for example, by means of a press connection or a welded connection.
  • a cover cover 104 with an outlet 108 is arranged, via which the medium can be removed from the pump device 100.
  • the medium is introduced into the pump device via the inlet 103 on the rotor housing 110 and conveyed through the hollow line 152 in the direction of the outlet 108 of the end cover 104.
  • a path of the medium through the pumping device 100 is schematically illustrated in FIG. 2 by the arrow 131.
  • the end cover 104 of the pump device 100 of FIG. 2 is connected to an opposing surface 107 via a surface 105 facing in the axial direction 113.
  • the end cover 104 may over the
  • opposite surfaces 105, 107 may be glued to the housing part 102.
  • the end cover 104 may also be connected to the housing part 102 by means of a press connection or a welded connection on the surfaces 105, 107.
  • FIG. 3 shows schematically a section in the axial direction 113 along a median plane through a pump device 100 according to a further alternative embodiment.
  • the pump device 100 of FIG. 3 may have the same elements and properties as the pump devices 100 of FIGS. 1 and 2.
  • the pump device 100 shown in Fig. 3 are in one
  • the openings 172 may be spaced approximately along a circumference of the end cover 104 in the end cover 104.
  • openings 174 are arranged, which are cooperating with the openings 172 of the end cover 104, approximately aligned, designed.
  • the fastening means 176 may be about screw and / or riveted joints. That too
  • Rotor housing 110 may be fastened to housing part 102 in an analogous manner.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Details And Applications Of Rotary Liquid Pumps (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

L'invention concerne un dispositif de pompage (100) permettant de refouler un milieu, en particulier un milieu gazeux et/ou liquide. Le dispositif de pompage (100) comprend un carter de rotor (110), un rotor de pompe (142) guidé dans le carter de rotor (110) et un arbre de pompe (114) accouplé au rotor de pompe (142) et permettant d'entraîner le rotor de pompe (142) dans le carter de rotor (110). Le dispositif de pompage (100) comprend en outre un moteur électrique (112) pourvu d'un stator d'entraînement (116) et d'un enroulement de stator permettant d'entraîner l'arbre de pompe (114) ainsi qu'une partie de carter (102), laquelle comprend elle-même le stator d'entraînement (116) pourvu de l'enroulement de stator et un canal de passage (115) permettant le montage de l'arbre de pompe (114). Le carter de rotor (110) du dispositif de pompage (100) est, selon l'invention, fixé directement sur une extrémité axiale (154) de la partie de carter (102), et un couvercle de fermeture (104) opposé au carter de rotor (110) et la partie de carter (102) sont fabriqués d'une seule pièce.
EP14798766.3A 2013-12-20 2014-11-07 Dispositif de pompage Active EP3084219B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102013226978.1A DE102013226978A1 (de) 2013-12-20 2013-12-20 Pumpenvorrichtung
PCT/EP2014/074028 WO2015090724A1 (fr) 2013-12-20 2014-11-07 Dispositif de pompage

Publications (2)

Publication Number Publication Date
EP3084219A1 true EP3084219A1 (fr) 2016-10-26
EP3084219B1 EP3084219B1 (fr) 2021-01-06

Family

ID=51900401

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14798766.3A Active EP3084219B1 (fr) 2013-12-20 2014-11-07 Dispositif de pompage

Country Status (6)

Country Link
EP (1) EP3084219B1 (fr)
CN (1) CN105829720B (fr)
BR (1) BR112015014134A2 (fr)
DE (1) DE102013226978A1 (fr)
ES (1) ES2855975T3 (fr)
WO (1) WO2015090724A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106678058A (zh) * 2017-02-22 2017-05-17 上海优耐特斯压缩机有限公司 高速电机直驱透平机械的超高速转子结构
DE102020112594A1 (de) 2020-05-08 2021-11-11 Schwäbische Hüttenwerke Automotive GmbH Pumpe-Motor-Einheit

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB141467A (en) * 1919-02-28 1920-04-22 Paul Francis Wheler Bush Improved means for pumping liquids
US3288073A (en) * 1964-12-01 1966-11-29 Pall Corp Canned pump having reduced hydraulic thrust
FR1527993A (fr) * 1967-04-21 1968-06-07 Pompe d'accélération, sans presse-étoupe, pour installations de chauffage central à eau chaude
US3667870A (en) * 1971-01-04 1972-06-06 Matsushita Electric Ind Co Ltd Motor driven pump
DE2156610A1 (de) * 1971-11-15 1973-05-24 Allweiler Ag Wellenlagerung fuer eine stopfbuchsenlose heizungsumwaelzpumpe
DE3412567A1 (de) * 1984-04-04 1985-10-24 Klein, Schanzlin & Becker Ag, 6710 Frankenthal Unterwassermotorkreiselpumpe
DE102007033659A1 (de) * 2007-07-17 2009-01-22 Cor Pumps + Compressors Ag Stirnzahnradumwälzpumpe
DE102007039767A1 (de) * 2007-08-22 2009-02-26 Rieter Ingolstadt Gmbh Vorrichtung zum Abwerfen eines Fadenendes
CN101113719B (zh) * 2007-09-14 2010-10-13 杨国俊 一种超低速微风发电机装置

Also Published As

Publication number Publication date
EP3084219B1 (fr) 2021-01-06
CN105829720A (zh) 2016-08-03
BR112015014134A2 (pt) 2017-07-11
ES2855975T3 (es) 2021-09-27
WO2015090724A1 (fr) 2015-06-25
DE102013226978A1 (de) 2015-06-25
CN105829720B (zh) 2019-05-07

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