Patents Assigned to PIERBURG PUMP TECHNOLOGY GMBH
  • Patent number: 10224778
    Abstract: An electric motor vehicle coolant pump includes a pump rotor which pumps a coolant and a drive motor which drives the pump rotor. The drive motor includes a dry motor stator comprising motor coils, a wet motor rotor, and a gap tube configured to separate the dry motor stator and the wet motor rotor from each other in a fluid-tight manner. The gap tube is formed by an integral sheet metal body which, in a gap region between the wet motor rotor and the dry motor stator consists of an austenitic high-grade steel comprising a material thickness of <0.5 mm, a hardness of from 200 to 500, a specific electrical resistance >0.10?√ómm2/m, and a relative magnetic permeability<20. The integral sheet metal body forms a sheet metal shell sliding bearing shell of a sliding bearing to radially mount the wet motor rotor.
    Type: Grant
    Filed: January 14, 2015
    Date of Patent: March 5, 2019
    Assignee: PIERBURG PUMP TECHNOLOGY GMBH
    Inventors: Vladimir Popov, Maik Waberski, Ronald Rathke, Jens Teubel
  • Patent number: 10193474
    Abstract: An electric motor vehicle auxiliary unit includes an electronically commutated drive motor comprising motor coils and an electronic commutator arrangement which energizes the motor coils. The electronic commutator arrangement includes a control unit, multiple power semiconductors each of which is controlled by the control unit, a motor current path, a motor current tap arranged in a course of the motor current path, and a high-pass filter arranged between the motor current tap and the control unit. The motor current tap is arranged so that a voltage signal proportional to a motor current IM drops at the motor current tap during a motor energization. The high-pass filter includes an input signal and an output signal. The input signal is the voltage signal and the output signal is a control signal for the control unit. The high-pass filter triggers a pole reversal after a delay following an input of a peak signal.
    Type: Grant
    Filed: February 10, 2015
    Date of Patent: January 29, 2019
    Assignee: PIERBURG PUMP TECHNOLOGY GMBH
    Inventor: Toni Henke
  • Publication number: 20190020255
    Abstract: An automotive electric fluidic pump includes a brushless and electronically commutated electric drive motor. The electric drive motor includes a permanent-magnetic motor rotor which rotates around a rotation axis and includes rotor poles, stator-sided electro-magnetic coils, a printed circuit board with openings, at least two stator-sided Hall sensors arranged on a proximal side of the printed circuit board to face the permanent-magnetic motor rotor, and a ferromagnetic back iron member arranged at a distal side of the printed circuit board to provide a direct magnetic coupling of the Hall sensors with each other. The Hall sensors are arranged eccentrically to detect axial magnetic fields of the rotor poles. The ferromagnetic back iron member comprises axial protrusions. An axial protrusion extends into an opening of the printed circuit board. Each axial protrusion faces a Hall sensor.
    Type: Application
    Filed: January 13, 2016
    Publication date: January 17, 2019
    Applicant: PIERBURG PUMP TECHNOLOGY GMBH
    Inventors: FRANK BUERGER, MARTIN SCHUMACHERS, MICHAEL HAASE, HARALD SPIERTZ, VIKTOR SCHROEDER, ALESSANDRO MALVASI, ANDREAS WULF
  • Publication number: 20190017505
    Abstract: An automotive electrical oil pump which includes an oil displacement pumping unit with a pump rotor which rotates in a pump chamber to pump oil to an oil recipient, an electric driving motor which drives the pump rotor, an electrical connector plug which connects the electric driving motor to a power source, and a fluid connector. The fluid connector includes a pump inlet fluidically connected to a chamber inlet, a pump outlet fluidically connected to a chamber outlet, a first lateral circular ring opening which define the pump inlet or the pump outlet, and a second lateral circular ring opening or a circular front opening which defines the pump outlet or the pump inlet. The second lateral circular ring opening is provided separate from the first lateral circular ring opening. The pump outlet and the pump inlet are arranged coaxially to each other.
    Type: Application
    Filed: January 12, 2016
    Publication date: January 17, 2019
    Applicant: PIERBURG PUMP TECHNOLOGY GMBH
    Inventors: VIKTOR SCHROEDER, ALESSANDRO MALVASI, ANDREAS WULF
  • Patent number: 10180142
    Abstract: An electric motor vehicle coolant pump for cooling an internal combustion engine of a motor vehicle includes a pump housing and a rotor rotatably supported in the pump housing. The rotor comprises a motor rotor configured to be substantially pot-shaped. The motor rotor comprises a pot bottom and a ferromagnetic substance so as to be magnetized in at least a bipolar manner. A pump rotor comprises a plurality of rotor blades and an annular cover ring arranged on distal ends of the plurality of rotor blades. The plurality of rotor blades are configured to stand directly on the pot bottom of the motor rotor. The pump rotor and the motor rotor are each integral plastic material parts separately produced by an injection molding. The pump rotor and the motor rotor are made from different materials. The pump rotor is not ferromagnetic.
    Type: Grant
    Filed: August 4, 2010
    Date of Patent: January 15, 2019
    Assignees: PIERBURG PUMP TECHNOLOGY GMBH, KOLEKTOR MAGNET TECHNOLOGY GMBH
    Inventors: Jens Teubel, Ronald Rathke, Martin Fiedlschuster, Michael Weinert, Norbert Weber, Pietro Giannico, Friedel Schlusnus
  • Publication number: 20190010943
    Abstract: An automotive electrical oil pump includes an oil displacement pumping unit with a pump rotor which rotates in a pump chamber so as to pump a pressurized oil to an oil recipient, an electric driving motor which drives the pump rotor of the oil displacement pumping unit, an electrical connector plug which electrically connects the electric driving motor to a power source, and a fluid connector. The fluid connector includes a pump inlet which is fluidically connected to a chamber inlet, a pump outlet which is fluidically connected to a chamber outlet, a center front opening, and a ring front opening which is arranged coaxially to the center front opening. The center front opening and the ring front opening define the pump inlet and the pump outlet.
    Type: Application
    Filed: January 12, 2016
    Publication date: January 10, 2019
    Applicant: PIERBURG PUMP TECHNOLOGY GMBH
    Inventors: ALESSANDRO MALVASI, VIKTOR SCHROEDER
  • Patent number: 10161402
    Abstract: A motor vehicle vacuum pump includes a pump rotor, a coupling element, and a clutch arrangement. The clutch arrangement locks or releases the coupling element to/from the pump rotor so that the coupling element rotates together with or is released from the pump rotor. The clutch arrangement comprises a bolt holder connected to the pump rotor or to the coupling element to rotate therewith, an axially displaceable guide body, and a catch body connected to the coupling element or to the pump rotor to rotate therewith. The bolt holder comprises a bolt guide and a bolt body displaceable therein. The guide body is assigned to the bolt holder and comprises a guiding surface inclined with respect to an axial plane. The bolt body is forced radially into a locking position via the guiding surface. The catch body has a catch depression wherewith the bolt body engages in the locking position.
    Type: Grant
    Filed: December 19, 2013
    Date of Patent: December 25, 2018
    Assignee: PIERBURG PUMP TECHNOLOGY GMBH
    Inventor: Sebastian Cramer
  • Publication number: 20180363761
    Abstract: A hybrid oil pump for a vehicle with an engine. The hybrid oil pump includes an oil pump unit which pumps a pressurized oil to a vehicle component, a mechanical drive which drives the oil pump unit in a mechanical driving mode, an electrical drive which drives the oil pump unit in an electrical driving mode, and a freewheel clutch which automatically couples the mechanical drive with a pump shaft when a rotational speed of the mechanical drive is higher than a rotational speed of the synchronous reluctance motor. The mechanical drive is mechanically connected to and driven by the engine. The electrical drive includes a synchronous reluctance motor which is directly mechanically connected to the oil pump unit.
    Type: Application
    Filed: April 7, 2016
    Publication date: December 20, 2018
    Applicant: PIERBURG-PUMP TECHNOLOGY GMBH
    Inventors: MARCO PARISI, ALESSANDRO MALVASI, VLADIMIR POPOV
  • Publication number: 20180335035
    Abstract: A mechanical vacuum pump for a motor vehicle includes a stationary pump housing, a pump rotor rotatably mounted in the pump housing, a plug-coupling element connected for a conjoint rotation with the pump rotor, and a lubricant supply for lubricating the plug-coupling element. The lubricant supply has a lubricant supply channel arranged in the pump housing and a lubricant transport channel arranged in the pump rotor. The lubricant supply channel is arranged so that a lubricant is pumped from a lubricant inlet to a transfer opening. The lubricant transport channel is arranged so that the lubricant is pumped from an acceptance opening to a lubricant outlet opening. The transfer opening and the acceptance opening are temporarily in a fluid communication with each other at least once when the pump rotor rotates. The lubricant outlet opening is arranged with an eccentricity in an end wall of the pump rotor.
    Type: Application
    Filed: December 9, 2015
    Publication date: November 22, 2018
    Applicant: PIERBURG PUMP TECHNOLOGY GMBH
    Inventors: ALEXANDER GRAULICH, KARL-HEINZ KIRBERG, KLAUS VOSMERBAEUMER
  • Patent number: 10119544
    Abstract: An automotive electric liquid pump includes a pump wheel, an EC-motor which directly drives the pump wheel, and a cover disk. The EC-motor comprises a wet motor rotor. The wet motor rotor comprises a ring-like motor rotor cavity, and a motor rotor body comprising a cylindrical rotor body section. The cylindrical rotor body section is permanently magnetized and surrounds a motor rotor cavity which is ring-like. The cover disk is arranged at a longitudinal rotor end opposite to the pump wheel. The cover disk closes the motor rotor cavity.
    Type: Grant
    Filed: November 6, 2013
    Date of Patent: November 6, 2018
    Assignee: PIERBURG PUMP TECHNOLOGY GMBH
    Inventors: Alessandro Malvasi, Robin Wegener
  • Publication number: 20180313354
    Abstract: An electric motor vehicle-axial-flow liquid pump which is designed as an internal rotor pump. The electric motor vehicle-axial-flow liquid pump includes a pump housing with an axial inlet opening for admitting a liquid and an axial outlet opening for discharging the liquid, and an electric motor arranged in the pump housing. The electric motor includes a motor stator with at least one external stator coil, a can formed radially inside the at least one external stator coil, and a rotor body which is permanently magnetized and which is provided as an axial-flow impeller rotatably arranged inside the can. The rotor body has an axis of rotation and at least one blade which pumps the liquid from the inlet opening to the outlet opening along the axis of rotation.
    Type: Application
    Filed: November 10, 2015
    Publication date: November 1, 2018
    Applicant: PIERBURG PUMP TECHNOLOGY GMBH
    Inventor: ROBIN WEGENER
  • Publication number: 20180291906
    Abstract: A motor vehicle vacuum pump includes a pump chamber with a pump rotor, an outlet chamber, a separating wall which separates the pump chamber from the outlet chamber, and an outlet valve arranged in the separating wall. The outlet valve is designed so that a compressed gas escapes from the pump chamber into the outlet chamber therethrough. The outlet valve is formed by a valve opening in the separating wall, a valve seat having a raised shape arranged around the valve opening, and a leaf spring as a valve body. The leaf spring abuts on the valve seat in a closed position and is spaced from the valve seat in an open position. The leaf spring has a radial overlap with the valve seat in the closed position of less than 1.5 mm and a radial projection outward beyond the raised valve seat which is larger than 1.0 mm.
    Type: Application
    Filed: September 23, 2015
    Publication date: October 11, 2018
    Applicant: PIERBURG PUMP TECHNOLOGY GMBH
    Inventors: STEFAN HAMMER, WOLFGANG PILENZ, ENVER DES, STEFAN SOMMER, MIRITZ JOHANNES JOB
  • Publication number: 20180258832
    Abstract: A coolant pump for providing a coolant to an engine includes a pump frame, a rotatable rotor shaft, a pulley wheel co-rotatably fixed to the rotor shaft, an axially shiftable ferromagnetic rotatable pump wheel, and an electromagnetic wet friction clutch arrangement. The pump wheel is axially shiftable with respect to the rotor shaft and the pump frame. The clutch arrangement comprises a static electromagnet, a clutch disk co-rotatably supported by the rotor shaft, a first clutch friction surface arranged at the clutch disk and a thereto corresponding second clutch friction surface arranged at the pump wheel, and a separate stop friction surface arranged at the pump wheel and a thereto corresponding static stop friction surface arranged at the static pump frame. The electromagnet, when fully energized, axially attracts the pump wheel so that the separate stop friction surface and the static stop friction surface engage to stop the pump wheel.
    Type: Application
    Filed: August 20, 2015
    Publication date: September 13, 2018
    Applicant: PIERBURG PUMP TECHNOLOGY GMBH
    Inventors: ARNAUD FOURNIER, BERTRAND ELIE, LAURENT FINIDORI, GILLES RYBICKI, GILLES SIMON, FLORENT RANDOULET, MAXIME LEFERT
  • Publication number: 20180245592
    Abstract: A lubricated automotive vacuum pump which provides a low-pressure for an automotive actuator includes a static pump housing which houses a pump chamber radially defined by a chamber surface, a pump rotor having a cylindrical rotor bearing surface and a rotor body having a vane slit, a vane which is shiftably supported by and radially shiftable in the vane slit and which separates the pump chamber into rotating compartments, a friction bearing which rotatably supports the pump rotor at the static pump housing, a pump gas inlet and outlet, an oil inlet channel which provides lubrication oil to the pump rotor, a separate oil outlet opening arranged at the rotor body, and a switchover valve for temporarily connecting the separate oil outlet opening with an oil drain. The friction bearing is defined by a cylindrical stator friction bearing surface and by the cylindrical rotor bearing surface.
    Type: Application
    Filed: August 19, 2015
    Publication date: August 30, 2018
    Applicant: Pierburg Pump Technology GmbH
    Inventors: Giorgio PERONI, Raffaele SQUARCINI
  • Publication number: 20180238331
    Abstract: An automobile vacuum pump includes a pump chamber with a pump rotor, an outlet chamber, a partition wall separating the pump chamber from the outlet chamber, and an outlet valve in the partition wall. A compressed gas is discharged from the pump chamber into the outlet chamber via the outlet valve. The outlet valve is formed by a valve opening in the partition wall, a valve seat arranged around the valve opening, and a leaf spring provided as a valve body. The leaf spring includes a spring body which includes a fastening site where the spring body is fixed to the partition wall, and a spring-body-side stopper. The spring-body-side stopper is arranged so that a first distance between the spring-body-side stopper and the fastening site is larger than a second distance between the fastening site and an opening edge of the valve opening which is closest to the fastening site.
    Type: Application
    Filed: November 2, 2015
    Publication date: August 23, 2018
    Applicant: PIERBURG PUMP TECHNOLOGY GMBH
    Inventors: STEFAN HAMMER, WOLFGANG PILENZ, ENVER DES, STEFAN SOMMER, MORITZ JOHANNES JOB
  • Patent number: 10024207
    Abstract: A lubricant pump comprises a shiftable control ring, a pump rotor rotating in the control ring, a pump outlet, and a pressure control system. The pressure control system comprises a pressure control chamber which pushes the control ring into a high pumping volume direction, an engine pressure input port connected to an engine pressure output port of an engine, a pilot chamber connected to the engine pressure input port which pushes the control ring into a low pumping volume direction, and a pressure control valve which controls a pressure in the pressure control chamber. The pressure control valve comprises a control valve plunger which opens/closes a control port to connect/disconnect the pressure control chamber to the atmospheric. The control valve plunger is fluidically connected to the engine pressure input port so that the control valve plunger is pushed by a lubricant pressure of the engine into an open position.
    Type: Grant
    Filed: May 24, 2013
    Date of Patent: July 17, 2018
    Assignee: PIERBURG PUMP TECHNOLOGY GMBH
    Inventors: Nicola Celata, Maurizio Moriglia, Andrea Malotti, Nicola Novi
  • Patent number: 10024322
    Abstract: A fluid pump includes an input shaft, a pumping unit comprising a pump rotor, and a clutch arranged between the input shaft and the pump rotor. The clutch comprises at least two input clutch disks, at least two output clutch disks, a permanent magnet element, and an actuator. The at least two input clutch disks and the at least two output clutch discs together define at least two clutch liquid gaps which are filled with a magneto-rheological clutch liquid. The permanent magnet element shifts between an engaged position wherein a magnetic field of the permanent magnet element penetrates the at least two clutch liquid gaps with a high magnetic flux, and a disengaged position wherein the magnetic field of the permanent magnet element is less than in the engaged position. The actuator moves the permanent magnet element between the engaged position and the disengaged position.
    Type: Grant
    Filed: August 23, 2012
    Date of Patent: July 17, 2018
    Assignee: PIERBURG PUMP TECHNOLOGY GMBH
    Inventors: Raffaele Squarcini, Elisa Bartalesi, Giacomo Armenio, Francesco Bucchi, Rocco Rizzo, Antonio Musolino, Paola Forte, Francesco Frendo, Alessandro Franceschini
  • Publication number: 20180187698
    Abstract: An electric motor-vehicle coolant pump includes a pump housing with a flow housing part and a separate motor housing part, a spiral flow channel with an axial inlet and a tangential outlet, a rotatably supported fluid-conveying element, an electric drive motor which drives the rotatably supported fluid-conveying element, and a mounting structure which mounts the pump housing to a vehicle structure. The mounting structure is only arranged on the flow housing part. The flow housing part at least partially surrounds the spiral flow channel and at least partially surrounds the rotatably supported fluid-conveying element. The separate motor housing part surrounds the electric drive motor.
    Type: Application
    Filed: June 30, 2015
    Publication date: July 5, 2018
    Applicant: PIERBURG PUMP TECHNOLOGY GMBH
    Inventor: STEPHAN SCHRECKENBERG
  • Publication number: 20180183309
    Abstract: An automotive auxiliary device includes an electric drive motor which is brushless and electronically commutated. The electric drive motor includes a rotatable motor rotor which defines a longitudinal rotor axis, a motor stator, and at least one stator-sided hall-sensor. The motor rotor includes a rotor shaft, a magnet carrier, and at least one permanent magnet which generates at least two rotor poles. The permanent magnet is fixed to the magnet carrier to provide a free inner space between the rotor shaft and the permanent magnet. The permanent magnet includes an axial protruding portion which axially protrudes from at least one side of the magnet carrier. The motor stator comprises at least two stator coils which are arranged radially around the rotatable motor rotor. The hall-sensor is arranged in the free inner space and is provided as a type of radial rotor detection sensor.
    Type: Application
    Filed: September 4, 2015
    Publication date: June 28, 2018
    Applicant: PIERBURG PUMP TECHNOLOGY GMBH
    Inventors: VIKTOR SCHROEDER, ANDREAS WULF, FRANK BUERGER, ALESSANDRO MALVASI
  • Publication number: 20180180048
    Abstract: A vacuum pump includes a pump rotor comprising a rotor body, a housing arrangement, a slidable pump vane, and a backing support cone structure. The rotor body comprises a vane slit, a conical ring, a coupling-sided end portion, and a vane-sided end portion. The housing arrangement comprises a static conical ring corresponding to the conical ring. The slidable pump vane is supported in the vane slit. The backing support cone structure is arranged at a front end of the vane-sided end portion and is defined by the conical ring of the rotor body and the static conical ring of the housing arrangement. A coupling structure and a single radial bearing are each arranged at the coupling-sided end portion of the rotor body and a radial bearing is not arranged at the vane-sided end portion of the rotor body so that the rotor body is radially supported cantilevered.
    Type: Application
    Filed: June 24, 2015
    Publication date: June 28, 2018
    Applicant: PIERBURG PUMP TECHNOLOGY GMBH
    Inventors: GIORGIO PERONI, RAFFAELE SQUARCINI, MICHAEL ROMBACH, GIORGIO MAMBERTI