Patents Assigned to PIERBURG PUMP TECHNOLOGY GMBH
  • Patent number: 11396811
    Abstract: A vane pump for providing a pressurized lubricant includes a static pump housing defining an inlet and an outlet, a shiftable control ring with at least one slide support surface, a pump rotor with rotor vanes which rotate within the control ring, and metal slide support pad(s). The control ring shifts with respect to the pump rotor to vary an eccentricity and to thereby control a volumetric pump performance. The pump housing comprises a static control ring housing body which radially surrounds and supports the control ring, and two static pump housing lids which axially support the control ring housing body and the control ring. The control ring housing body is made of plastic. The metal slide support pad(s) is fixed to the static control ring housing body and, together with the at least one slide support surface, provides a friction bearing for the control ring.
    Type: Grant
    Filed: December 13, 2017
    Date of Patent: July 26, 2022
    Assignee: PIERBURG PUMP TECHNOLOGY GMBH
    Inventor: Massimiliano Lazzerini
  • Publication number: 20220228588
    Abstract: A variable displacement lubricant pump includes a housing, a control ring arranged in the housing, an inlet chamber and an outlet chamber, and a lateral slide bearing. The control ring is shiftable, radially confines a pumping chamber, and comprises a drainage channel. The outlet chamber and the inlet chamber are arranged at opposite lateral sides of the control ring. The lateral slide bearing is arranged at the lateral side of the control ring where the outlet chamber is arranged and comprises a first lateral slide bearing surface defined by the static housing, a second lateral slide bearing surface arranged opposite to the first lateral slide bearing surface which is defined by the control ring, and a lateral slide bearing gap defined between the first and second lateral slide bearing surfaces. The drainage channel of the control ring fluidically connects the lateral slide bearing gap with the inlet chamber.
    Type: Application
    Filed: May 29, 2019
    Publication date: July 21, 2022
    Applicant: PIERBURG PUMP TECHNOLOGY GMBH
    Inventors: MASSIMILIANO LAZZERINI, CARMINE CUNEO, FABIO GUGLIELMO, VINCENZO ZACCURI
  • Publication number: 20220149685
    Abstract: An automotive auxiliary unit with an electric motor. The automotive auxiliary unit includes a motor stator, a rotatable metallic rotor shaft which defines a rotor fixation section, and a motor rotor which is co-rotatably fixable to the rotatable metallic rotor shaft via pressing at the rotor fixation section. The rotor fixation section has material bulgings at a shaft surface of the rotatable metallic rotor shaft. The material bulgings at the shaft surface of the rotatable metallic rotor shaft are provided via a laser engraving.
    Type: Application
    Filed: April 10, 2019
    Publication date: May 12, 2022
    Applicant: PIERBURG PUMP TECHNOLOGY GMBH
    Inventors: STEFFEN SCHNURR, NABIL SALIM AL-HASAN, STANISLAUS RUSS, TOBIAS GRUENE, PETRA HAGEN, MARCEL PIOTROWSKI, SEBASTIAN IRMER
  • Patent number: 11319966
    Abstract: A vapor pump for an automotive application includes a housing group with a pump housing having a pump chamber, an inlet opening and an outlet opening, and a motor housing having a motor chamber; a rotor shaft made from an electrically conductive material; a pumping wheel made of an electrically conductive plastic material arranged in the pump chamber and mounted on the rotor shaft to rotate therewith to pump the fuel vapor from the inlet opening to the outlet opening; a drive motor arranged in the motor chamber which includes a motor stator, a motor rotor and a motor control unit; a contact plug which electrically connects the motor control unit; and an electrically conductive bearing arrangement which is connected with the contact plug via a conductor. The motor rotor is connected with the rotor shaft to rotate therewith. The electrically conductive bearing arrangement rotatably supports the rotor shaft.
    Type: Grant
    Filed: August 15, 2016
    Date of Patent: May 3, 2022
    Assignee: PIERBURG PUMP TECHNOLOGY GMBH
    Inventor: Alessandro Malvasi
  • Publication number: 20220099016
    Abstract: A switchable mechanical motor vehicle coolant pump includes a rotatable drive shaft, a drive wheel, a coolant pump wheel comprising a radially outer outlet, a control slider, and an actuation system which hydraulically actuates the control slider. The drive wheel and the coolant pump wheel are each connected to the drive shaft. The control slider shifts axially with respect to the coolant pump wheel to at least partially close the radially outer outlet. The actuation system includes pressure chamber(s), an auxiliary pump having an auxiliary pump wheel provided integrally with the coolant pump wheel, and a switchable control valve which controls a pressure level within the pressure chamber(s). The auxiliary pump wheel provides a hydraulic actuation pressure for the pressure chamber(s) and comprises a ring-shaped pumping channel in which pumping vanes are arranged equidistantly along a circumference of the ring-shaped pumping channel so as to define equal pumping chambers therebetween.
    Type: Application
    Filed: January 15, 2019
    Publication date: March 31, 2022
    Applicant: PIERBURG PUMP TECHNOLOGY GMBH
    Inventors: LAURENT FINIDORI, GILLES SIMON, RAFFAELE SQUARCINI, EMMANUEL DATTOLI, SEBASTIEN BRUANT, GILLES RYBICKI, GIORGIO PERONI, ANTONIO DIPACE, JEROME KREMER
  • Patent number: 11268514
    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: Grant
    Filed: November 2, 2015
    Date of Patent: March 8, 2022
    Assignee: PIERBURG PUMP TECHNOLOGY GMBH
    Inventors: Stefan Hammer, Wolfgang Pilenz, Enver Des, Stefan Sommer, Moritz Johannes Job
  • Patent number: 11268509
    Abstract: A variable lubricant vane pump includes a pump housing, a shiftable control ring, a rotatable pump rotor, a control ring preload spring which preloads and pushes the control ring into a high eccentricity direction, a hydraulic safety control chamber which moves the control ring against the control ring preload spring and which is directly and constantly pressurized with a pressurized lubricant having a pump outlet pressure, a separate hydraulic adjustment control chamber which moves the control ring against the control ring preload spring and which is selectively pressurized with the pressurized lubricant having an over-atmospheric pressure, an electric adjustment valve which selectively directs the pressurized lubricant having the over-atmospheric pressure to the separate hydraulic adjustment control chamber, and a calibrated hydraulic channel which directly connects the separate hydraulic adjustment control chamber with atmospheric pressure.
    Type: Grant
    Filed: August 3, 2017
    Date of Patent: March 8, 2022
    Assignee: PIERBURG PUMP TECHNOLOGY GMBH
    Inventor: Carmine Cuneo
  • Patent number: 11261868
    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: Grant
    Filed: February 1, 2017
    Date of Patent: March 1, 2022
    Assignee: PIERBURG PUMP TECHNOLOGY GMBH
    Inventors: Steffen Schnurr, Sebastian Cramer, Nabil Salim Al-Hasan, Stanislaus Russ, Tobias Gruene
  • Patent number: 11261869
    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: Grant
    Filed: June 22, 2016
    Date of Patent: March 1, 2022
    Assignee: PIERBURG PUMP TECHNOLOGY GMBH
    Inventors: Sebastian Cramer, Nabil Salim Al-Hasan, Daniel Mueller
  • Publication number: 20220003329
    Abstract: A check valve arrangement includes a valve housing which radially defines a valve body chamber, a valve inlet opening arranged in the valve housing, a valve seat arranged at a first axial end of the valve body chamber to radially surround the valve inlet opening, a valve travel limiter arranged at a second axial end of the valve body chamber which is remote from the first axial end and the valve seat, and a disc-shaped valve body which is arranged loosely within the valve body chamber. The valve travel limiter includes a support ring which is fixed to the valve housing, a central transversal platform structure which axially protrudes from a side of the support ring which faces the valve seat, and a platform frame which axially connects the central transversal platform structure with the support ring. The platform frame includes at least one radial frame opening.
    Type: Application
    Filed: November 22, 2018
    Publication date: January 6, 2022
    Applicant: Pierburg Pump Technology GmbH
    Inventors: Steffen SCHNURR, Nabil Salim AL-HASAN, Stanislaus RUSS, Tobias GRUENE, Petra HAGEN, Marcel PIOTROWSKI, Sebastian IRMER
  • Publication number: 20210388853
    Abstract: A motor vehicle pump arrangement includes a pumping unit having engagement steps, and a mounting arrangement which mounts the pumping unit to a motor vehicle mounting structure which corresponds to the pumping unit. The mounting arrangement includes a vibration-decoupling body having a ring shape, and a clip retainer which is attached to the vibration-decoupling body. The vibration-decoupling body radially surrounds the pumping unit, supports the pumping unit, and is attachable to the motor vehicle mounting structure. The clip retainer axially retains the pumping unit. The clip retainer includes a retainer frame which extends in a transversal pumping unit plane and which is axially supported by the vibration-decoupling body, and retainer arms which axially project from the retainer frame. Each of the retainer arms engages a respective one of the corresponding engagement steps of the pumping unit so as to axially retain the pumping unit.
    Type: Application
    Filed: October 25, 2018
    Publication date: December 16, 2021
    Applicant: PIERBURG PUMP TECHNOLOGY GMBH
    Inventors: ALEXANDER FINDEISEN, WOLFGANG ZACHER
  • Publication number: 20210388852
    Abstract: A motor vehicle pump arrangement includes a pumping unit and a mounting arrangement. The pumping unit has a substantially cylindrical pumping unit housing and at least one support protrusion which radially protrudes from the pumping unit housing. The mounting arrangement mounts the pumping unit to a motor vehicle mounting structure corresponding thereto. The mounting arrangement has a ring-shaped pump support body. The pump support body radially surrounds and supports the pumping unit and is attachable to the motor vehicle mounting structure. An axial side of the pump support body includes a castellated structure having axially extending merlons and protrusion receptacles. One protrusion receptacle is arranged between two adjacent merlons. The support protrusion engages with at least one of the protrusion receptacles.
    Type: Application
    Filed: October 25, 2018
    Publication date: December 16, 2021
    Applicant: PIERBURG PUMP TECHNOLOGY GMBH
    Inventors: ALEXANDER FINDEISEN, RENE PATZNER, WOLFGANG ZACHER
  • Patent number: 11193484
    Abstract: An automotive liquid pendulum vane pump includes a pump housing, a rotor ring with circular undercut recesses, a rotor hub with vane slots, and pendulum vanes which connect the rotor ring and the rotor hub. Each vane slot has a substantially plane contact wall slot with a tangential contact nose in an opening region and a diving recess. Each pendulum vane has a circular pendulum head which defines a pendulum hinge which corresponds to a circular undercut recess, a circular pendulum foot which is radially shiftable and pivotable in a vane slot, a vane leg which connects the circular pendulum head and the circular pendulum foot, and a contact path with a contact path surface which contacts the tangential contact nose in a rotational contact sector. A radial inner end of the contact path surface defines an inner tangential projection which temporarily dives into the diving recess.
    Type: Grant
    Filed: February 24, 2017
    Date of Patent: December 7, 2021
    Assignee: PIERBURG PUMP TECHNOLOGY GMBH
    Inventors: Raffaele Squarcini, Antonio Dipace, Emanuele Pellegrini
  • Patent number: 11177722
    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: Grant
    Filed: December 22, 2016
    Date of Patent: November 16, 2021
    Assignee: PIERBURG PUMP TECHNOLOGY GMBH
    Inventors: Frank Buerger, Andreas Wulf, Wolfgang Pilenz
  • Patent number: 11174894
    Abstract: A fluid pump for a motor vehicle includes a pump wheel which is co-rotatably connected with a driving device via a rotor shaft, and a shaft bearing system for the rotor shaft. The shaft bearing system includes a bearing receptacle having a support flange, and a first and a second ball bearing. The first and the second ball bearing are each fixed to a radial outside of the rotor shaft, are each axially shiftable within the static bearing receptacle, and are positioned at opposite axial sides of the support flange. An outer race of the first ball bearing contacts the support flange. An outer race of the second ball bearing is axially preloaded away from the support flange via a preload spring. The first and the second ball bearing are each radially supported within the static bearing receptacle only by an elastic support ring which radially surrounds the outer races.
    Type: Grant
    Filed: June 1, 2018
    Date of Patent: November 16, 2021
    Assignee: PIERBURG PUMP TECHNOLOGY GMBH
    Inventors: Noriyuki Otsuka, Michael Rombach, Andreas Wulf, Marco Limbach, Tobias Muench, Antonio Dipace
  • Patent number: 11162511
    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: Grant
    Filed: September 18, 2017
    Date of Patent: November 2, 2021
    Assignee: PIERBURG PUMP TECHNOLOGY GMBH
    Inventors: Lars Heitzig, Clemens Reichel, Hemke Maeter, Falk Steiger
  • Patent number: 11125229
    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: Grant
    Filed: October 12, 2016
    Date of Patent: September 21, 2021
    Assignee: PIERBURG PUMP TECHNOLOGY GMBH
    Inventor: Carmine Cuneo
  • Publication number: 20210285406
    Abstract: A vapor pump for an automotive application includes a housing group with a pump housing having a pump chamber, an inlet opening and an outlet opening, and a motor housing having a motor chamber; a rotor shaft made from an electrically conductive material; a pumping wheel made of an electrically conductive plastic material arranged in the pump chamber and mounted on the rotor shaft to rotate therewith to pump the fuel vapor from the inlet opening to the outlet opening; a drive motor arranged in the motor chamber which includes a motor stator, a motor rotor and a motor control unit; a contact plug which electrically connects the motor control unit; and an electrically conductive bearing arrangement which is connected with the contact plug via a conductor. The motor rotor is connected with the rotor shaft to rotate therewith. The electrically conductive bearing arrangement rotatably supports the rotor shaft.
    Type: Application
    Filed: August 15, 2016
    Publication date: September 16, 2021
    Applicant: PIERBURG PUMP TECHNOLOGY GMBH
    Inventor: ALESSANDRO MALVASI
  • Publication number: 20210239121
    Abstract: An electric coolant pump includes a pump housing, an electric motor, and a pump wheel. The pump housing has a pumping chamber and a motor chamber which are separated by a separation sidewall. The pumping chamber has a pump volute which extends from a pump inlet to a pump outlet. A volute cooling sector of the pump volute extends over a volute angle of 120°. The separation sidewall has a cooling section which is defined by the volute cooling sector. The electric motor includes a motor rotor, a motor stator having a stator coil arrangement, and a motor electronics arranged in the motor chamber which energizes the stator coil arrangement. The pump wheel is arranged in the pumping chamber and is connected with the motor rotor. The stator coil arrangement is arranged adjacent to the volute cooling sector and thermally contacts the cooling section of the separation sidewall.
    Type: Application
    Filed: June 8, 2018
    Publication date: August 5, 2021
    Applicant: PIERBURG PUMP TECHNOLOGY GMBH
    Inventor: MARTIN HELMIS
  • Publication number: 20210242745
    Abstract: A canned electric motor for a fluid pump. The canned electric motor includes a static motor frame, a rotor shaft, a rotatable motor rotor which is co-rotatably connected with the rotor shaft, a static motor stator having a stator body which is directly fixed to the static motor frame, and a separating can which fluidically separates the static motor stator from the rotatable motor rotor. The separating can has a first axial support which protrudes radially from an outside of the separating can. The separating can is supported in a first axial direction by the stator body via the first axial support and in a second axial direction by the static motor frame. The first axial direction is opposite to the second axial direction.
    Type: Application
    Filed: June 8, 2018
    Publication date: August 5, 2021
    Applicant: PIERBURG PUMP TECHNOLOGY GMBH
    Inventors: JAN HOHMANN, MARTIN HELMIS, ANDREAS SAUER, ANDREAS LOEKES