Patents Assigned to PIERBURG PUMP TECHNOLOGY GMBH
  • Patent number: 10619638
    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: Grant
    Filed: June 24, 2015
    Date of Patent: April 14, 2020
    Assignee: PIERBURG PUMP TECHNOLOGY GMBH
    Inventors: Giorgio Peroni, Raffaele Squarcini, Michael Rombach, Giorgio Mamberti
  • Patent number: 10590935
    Abstract: An automotive electric liquid pump includes a pump housing comprising a first longitudinal end and a second longitudinal end, a rotor which defines a longitudinal rotor axis, a pump chamber inlet, a pump chamber outlet, an electric motor, a power electronics chamber, a pump chamber, and a separation wall. The electric motor comprises stator coils arranged at the first longitudinal end. The electric motor drives a pump rotor. The power electronics chamber comprises power semiconductors to drive the stator coils. The power electronics chamber is arranged at the second longitudinal end. The pump chamber is configured to have the pump rotor driven by the electric motor rotate therein so as to pump a liquid from the pump chamber inlet to the pump chamber outlet. The separation wall is arranged in a transversal plane. The separating wall separates the pump chamber from the power electronics chamber.
    Type: Grant
    Filed: October 29, 2012
    Date of Patent: March 17, 2020
    Assignee: PIERBURG PUMP TECHNOLOGY GMBH
    Inventors: Alessandro Malvasi, Giacomo Armenio
  • Publication number: 20190353166
    Abstract: An electric motor-vehicle coolant pump includes a housing, a pump unit with blade elements, a motor unit with a motor stator and a motor rotor which are mounted in the housing via a bearing, and inlet and outlet openings with respective center axes. The pump unit pumps a cooling fluid. The motor rotor has an impeller element and a drive element which extends in an axial direction and which has an axis of rotation. The blade elements are arranged on the impeller element. The inlet and outlet openings each allow the cooling fluid to flow through the motor unit. The outlet openings of the pump unit are arranged in the motor rotor. When viewed in an outlet direction, the respective center axes of the outlet openings include an angle ? of 10° to 135° with respect to a projection of the axis of rotation into the respective outlet opening.
    Type: Application
    Filed: September 18, 2017
    Publication date: November 21, 2019
    Applicant: PIERBURG PUMP TECHNOLOGY GMBH
    Inventors: LARS HEITZIG, CLEMENS REICHEL, HEMKE MAETER, FALK STEIGER
  • Publication number: 20190345943
    Abstract: A vane type gas pump for a compressible fluid. The vane-type gas pump includes a pump housing which forms a pump chamber in which a pump rotor with at least one slidable sliding element is rotatably mounted. At least one fluid inlet opening and at least one elongated fluid outlet opening are dedicated to the pump chamber. The at least one slidable sliding element has a tangential width. The at least one elongated fluid outlet opening has a tangential width. The tangential width of the at least one slidable sliding element at least corresponds to the tangential width of the at least one elongated fluid outlet opening so that the at least one slidable sliding element temporarily completely covers the at least one elongated fluid outlet opening.
    Type: Application
    Filed: February 1, 2017
    Publication date: November 14, 2019
    Applicant: PIERBURG PUMP TECHNOLOGY GMBH
    Inventors: STEFFEN SCHNURR, SEBASTIAN CRAMER, NABIL SALIM AL-HASAN, STANISLAUS RUSS, TOBIAS GRUENE
  • Publication number: 20190345936
    Abstract: A vane-type gas pump includes a pump housing which forms a pump chamber in which a pump rotor with at least one slidable sliding element is rotatably mounted. At least one fluid inlet opening and at least one fluid outlet opening are dedicated to the pump chamber. The pump housing includes a closed stroke ring, a first separate thrust washer, and a second separate thrust washer. At least one stroke ring adjustment device axially clamps the closed stroke ring directly to the first separate thrust washer. At least one separate housing clamping device axially clamps the first separate thrust washer, the closed stroke ring, and the second separate thrust washer together.
    Type: Application
    Filed: February 23, 2017
    Publication date: November 14, 2019
    Applicant: PIERBURG PUMP TECHNOLOGY GMBH
    Inventors: STEFFEN SCHNURR, SEBASTIAN CRAMER, NABIL SALIM AL-HASAN, STANISLAUS RUSS, TOBIAS GRUENE
  • Publication number: 20190338642
    Abstract: An automotive auxiliary assembly vacuum pump includes a housing composite structure with an electric motor section, a pump section, a pump inlet opening, and a pump outlet opening, a motor housing part, a bearing plate which closes the motor housing part proximally, and a pump rotor with a rotor body. The electric motor section includes a motor rotor which is surrounded by the motor housing part and which is closed by the bearing plate. The pump section includes a pump housing which defines a pump chamber and which includes a closure element, at least one pump chamber inlet opening, and at least one pump chamber outlet opening. The pump housing is formed at least by axially proximal and axially distal thrust washers and a radial thrust ring. Only the bearing plate and the axially proximal thrust washer are provided as a single-piece flange element.
    Type: Application
    Filed: May 10, 2017
    Publication date: November 7, 2019
    Applicant: PIERBURG PUMP TECHNOLOGY GMBH
    Inventors: NABIL SALIM AL-HASAN, TOBIAS GRUENE, SEBASTIAN CRAMER, STEFFEN SCHNURR
  • Publication number: 20190334392
    Abstract: An automotive single-phase electrical motor of a claw pole type includes a rotating motor rotor which rotates around a rotating axis, a stator defined by a pair of annular stator bodies, and a stator coil arrangement which magnetizes the stator bodies. The stator bodies includes a first stator body having a radial arm and at least two magnetic claws, and a second stator body having a radial arm and at least two magnetic claws. The at least two magnetic claws of the first stator body mesh with the at least two magnetic claws of the second stator body so that the stator bodies mate with each other. The stator coil arrangement is provided as a satellite of the stator bodies. The radial arm of the first stator body and the radial arm of the second stator body are magnetically connected to each other at the stator coil arrangement.
    Type: Application
    Filed: July 6, 2016
    Publication date: October 31, 2019
    Applicant: PIERBURG PUMP TECHNOLOGY GMBH
    Inventors: ENRICO LINDNER, MATHIAS ZILL, TONI HENKE
  • Patent number: 10458414
    Abstract: An automotive electric liquid pump includes a separation can having a radial inside which includes a static bearing ring, a pump rotor, and a motor rotor which rotates in the separation can. The motor rotor includes a radial outside having a cylindrical rotor bearing ring. The static bearing ring of the separation can corresponds to the cylindrical rotor bearing ring of the motor rotor. A first radial slide bearing is defined by the cylindrical rotor bearing ring and the static bearing ring.
    Type: Grant
    Filed: March 6, 2014
    Date of Patent: October 29, 2019
    Assignee: PIERBURG PUMP TECHNOLOGY GMBH
    Inventors: Alessandro Malvasi, Andreas Wulf
  • Publication number: 20190326798
    Abstract: An automotive electrical gas pump includes an electronically commutated motor which drives a motor rotor to rotate within a motor can. The motor has a motor stator which comprises at least one static electro-magnetic coil. An electronic circuit board drives the at least one electro-magnetic coil. A mounting frame includes a motor can and a stator bed. The stator bed embeds the motor stator at least in part. The mounting frame is made of a plastic material which includes a thermally high-conductive filler material.
    Type: Application
    Filed: December 22, 2016
    Publication date: October 24, 2019
    Applicant: PIERBURG PUMP TECHNOLOGY GMBH
    Inventors: FRANK BUERGER, ANDREAS WULF, WOLFGANG PILENZ
  • Publication number: 20190323506
    Abstract: An electrical motor vehicle vacuum pump arrangement includes a housing assembly, a pump apparatus arranged therein, a drive motor, and a sound dampener. The housing assembly includes an inlet and an outlet opening arrangement. The pump apparatus includes a pump rotor housing with an inlet- and an outlet-side face wall, and a pump rotor housing part arranged therebetween. The inlet- and the outlet-side face wall and the pump rotor housing part enclose a pump rotor chamber with a pump rotor arranged therein. The drive motor is arranged in the housing assembly. The drive motor includes a motor rotor and a motor stator. The sound damper includes a first and a second sound damping chamber, and a sound dampener element. The first sound damping chamber is connected to the pump rotor chamber and to the second sound damping chamber. The second sound damping chamber is connected to the outlet opening arrangement.
    Type: Application
    Filed: June 22, 2016
    Publication date: October 24, 2019
    Applicant: Pierburg Pump Technology GmbH
    Inventors: Sebastian CRAMER, Nabil Salim AL-HASAN, Daniel MUELLER
  • Patent number: 10443599
    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: Grant
    Filed: December 9, 2015
    Date of Patent: October 15, 2019
    Assignee: PIERBURG PUMP TECHNOLOGY GMBH
    Inventors: Alexander Graulich, Karl-Heinz Kirberg, Klaus Vosmerbaeumer
  • Publication number: 20190293069
    Abstract: A mechanical lubricant pump includes a control ring which shifts between a maximum and a minimum eccentricity position, the control ring having a circumference with anti-spring and pro-spring hydraulic surfaces, a pump rotor having slidable vanes which rotate in the control ring, a preload spring which pushes the control ring into the maximum eccentricity position, a hydraulic pilot chamber which pushes the control ring into the minimum eccentricity position, a hydraulic pressure control circuit which controls a gallery pressure by regulating a pilot chamber pressure, and a hydraulic outlet chamber which surrounds a part of the circumference. The hydraulic pilot chamber is charged with a pump outlet pressure or with the gallery pressure of an engine. The hydraulic outlet chamber is charged with the pump outlet pressure and is connected to the pump outlet for a pressurized lubricant. The anti-spring hydraulic surface is larger than the counter-acting pro-spring hydraulic surface.
    Type: Application
    Filed: October 12, 2016
    Publication date: September 26, 2019
    Applicant: PIERBURG PUMP TECHNOLOGY GMBH
    Inventor: CARMINE CUNEO
  • Patent number: 10415568
    Abstract: An electric canned coolant pump includes a drive motor comprising a split case provided as a separating can which separates a wet chamber comprising a motor rotor from a dry chamber comprising a motor stator. The separating can comprises a separating can form-fit structure. A Hall sensor is arranged on the separating can. The Hall sensor detects a position of the motor rotor in the dry chamber. The Hall sensor comprises a sensor head and Hall sensor electric connecting lines. A positioning element comprises positioning element electric connecting lines which are connected with the corresponding Hall sensor electric connecting lines. The positioning element electric connecting lines comprise a connecting body comprising a connecting body form-fit structure. The connecting body is electrically insulating and holds the positioning element electric connecting lines. The separating can form-fit structure and the connecting body form-fit structure fix the connecting body on the separating can.
    Type: Grant
    Filed: September 17, 2012
    Date of Patent: September 17, 2019
    Assignee: PIERBURG PUMP TECHNOLOGY GMBH
    Inventors: Wolfgang Zacher, Rene Patzner
  • Publication number: 20190252961
    Abstract: An electrical device includes a brushless one-phase driving motor which drives a mechanical unit. The brushless one-phase driving motor includes a motor rotor which is radially permanently magnetized and which rotates around a rotational rotor axis, a non-symmetric stator back-iron structure which includes a rotor opening for the motor rotor and a lateral bridge portion which magnetically connect two stator poles, a single stator coil which surrounds the lateral bridge portion, a pole separation gap arranged radially opposite to the lateral bridge portion, the pole separation gap magnetically separating the two stator poles, an electronic control device which drives the single stator coil, and a single hall sensor which is electrically connected to the electronic control device. The single hall sensor is arranged approximately radially opposite to the single stator coil with respect to the rotational rotor axis.
    Type: Application
    Filed: July 28, 2016
    Publication date: August 15, 2019
    Applicant: PIERBURG PUMP TECHNOLOGY GMBH
    Inventors: ALESSANDRO MALVASI, MARTIN HELMIS
  • Publication number: 20190226483
    Abstract: A motor vehicle vacuum pump includes a pump housing which encloses a pump chamber, a pump rotor bearing, a pump rotor, a coupling unit rotationally fixed to the pump rotor which connects the pump rotor to a drive shaft, and a lubricant supply assembly which lubricates the pump chamber, the pump rotor bearing and/or the coupling unit. The pump housing has a lubricant inlet opening. The pump rotor is arranged in the pump chamber via the pump rotor bearing. The lubricant supply assembly includes a lubricant outlet opening and a lubricant supply duct which is arranged in the pump housing so that a lubricant is pumpable from the lubricant inlet opening towards the pump chamber, the pump rotor bearing and/or the coupling unit, to the lubricant outlet opening. A seal element is arranged in a region of, and a filter element is arranged in, the lubricant inlet opening, respectively.
    Type: Application
    Filed: July 14, 2016
    Publication date: July 25, 2019
    Applicant: PIERBURG PUMP TECHNOLOGY GMBH
    Inventor: STEFFEN SCHNURR
  • Publication number: 20190153914
    Abstract: A hybrid oil pump for a vehicle with an engine. The hybrid oil pump includes an oil pump unit with a pump shaft, a mechanical drive to drive the oil pump unit in a mechanical driving mode, an electrical drive to drive the oil pump unit in an electrical driving mode, a switchable clutch arranged between the motor shaft and the pump shaft, and a freewheel clutch to automatically couple the mechanical drive with the pump shaft when a rotational speed of the mechanical drive is higher than a rotational speed of the electric motor. The oil pump unit pumps pressurized oil to a vehicle component. The mechanical drive is mechanically connected to and driven by the engine. The electrical drive includes an electric motor and a motor shaft. The switchable clutch mechanically disengages the electrical drive from the oil pump unit in the mechanical driving mode.
    Type: Application
    Filed: April 7, 2016
    Publication date: May 23, 2019
    Applicant: Pierburg Pump Technology GmbH
    Inventors: Marco PARISI, Alessandro MALVASI
  • Patent number: 10247186
    Abstract: A variable lubricant vane pump which provides a pressurized lubricant for an engine includes a pump housing comprising a pump chamber. The pump chamber comprises pump compartments which rotate from a charge zone to a discharge zone. The pressurized lubricant is discharged from the pump compartments into an outlet cavity. A control ring envelopes the pump chamber and shifts between high and a low pumping volume position. A pump rotor comprises radially slidable vanes which rotate in the control ring. A pressure control chamber pushes the control ring into the high pumping volume direction. A control valve connects or disconnects the pressure control chamber to a lubricant tank. A pilot chamber pushes the control ring into the low pumping volume direction. A pilot chamber channel connects the outlet cavity with the pilot chamber. A control chamber channel connects the outlet cavity with the pressure control chamber.
    Type: Grant
    Filed: June 13, 2013
    Date of Patent: April 2, 2019
    Assignee: PIERBURG PUMP TECHNOLOGY GMBH
    Inventors: Maurizio Moriglia, Nicola Celata, Bernardo Celata
  • Publication number: 20190093656
    Abstract: A vacuum pump for pumping a gas includes a pump housing which defines a pump cavity, a shiftable vane, a pump rotor body, a separate axial rotor retaining arrangement, and a radial friction bearing. The pump housing includes a closed housing wall. The pump rotor body includes a vane slit which supports the shiftable vane to define rotating pumping chambers, an axial low-pressure end which is axially supported by the closed housing wall so that a gas pressure inside the pumping chambers is present at the low-pressure end, and an axial high-pressure end. The pump housing is fluidically open at the axial high-pressure end so that atmospheric pressure is present. The axial rotor retaining arrangement includes a retaining sheet body arranged in a transversal plane which axially in part blocks the axial high-pressure end. The radial friction bearing is arranged axially between the vane slit and the axial high-pressure end.
    Type: Application
    Filed: March 7, 2016
    Publication date: March 28, 2019
    Applicant: PIERBURG PUMP TECHNOLOGY GMBH
    Inventors: GIORGIO PERONI, RAFFAELE SQUARCINI, MICHAEL ROMBACH, ANDREAS KUHNEKATH
  • Patent number: 10243421
    Abstract: A motor vehicle auxiliary assembly electric motor includes a motor stator with stator coils. The motor stator is electronically commutated. A control electronics system drives the stator coils and is potted in a cast body. An electronics chamber is closed-off and has the control electronics system and the cast body arranged therein. A gas chamber is arranged adjacent to the cast body. A pressure equalization element ventilates and vents the gas chamber. An aeration shaft is arranged to pass through the cast body and fluidically connects the gas chamber to the atmosphere. The pressure equalization element is fluidically associated with the aeration shaft.
    Type: Grant
    Filed: January 23, 2015
    Date of Patent: March 26, 2019
    Assignee: PIERBURG PUMP TECHNOLOGY GMBH
    Inventors: Wolfgang Haensch, Maik Waberski, Michael Weinert, Joerg Hartzendorf, Ronald Rathke, Thomas Wienecke
  • Patent number: 10224837
    Abstract: A method for starting a drive motor. The drive motor includes a motor stator with stator coils and a motor rotor, and a control electronics system and a power electronics system which supply power to the stator coils with a predefined coil voltage and a predefined constant start-up rotation frequency to generate a rotating field to drive the motor rotor. The method includes supplying power to at least one stator coil with a coil voltage corresponding to a start value, increasing the coil voltage in steps, monitoring an electric current flowing through the power electronics system, and, when a specific minimum voltage drop is detected, terminating the increasing of the coil voltage in steps, and performing a safety increase of the coil voltage by increasing a start-up voltage value by a predefined safety value to a first operating voltage value where the motor rotor is drivable in an unregulated mode.
    Type: Grant
    Filed: August 14, 2014
    Date of Patent: March 5, 2019
    Assignee: PIERBURG PUMP TECHNOLOGY GMBH
    Inventors: Martin Schumachers, Mario Jansen, Joachim Mertens