Patents Assigned to PIERBURG PUMP TECHNOLOGY GMBH
  • Publication number: 20170067469
    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: Application
    Filed: March 6, 2014
    Publication date: March 9, 2017
    Applicant: PIERBURG PUMP TECHNOLOGY GMBH
    Inventors: ALESSANDRO MALVASI, ANDREAS WULF
  • Patent number: 9574485
    Abstract: A mechanical coolant pump for an internal combustion engine includes an impeller pump wheel. The pump housing comprises an outlet valve arrangement arranged between an outlet volute and a pump outlet, and a support portion. The pump housing closes and/or opens a valve opening. The outlet valve arrangement comprises a valve body which pivots. The valve body comprises a closing element which covers the valve opening, and first and second end disks. The closing element comprises an opening seat in a closed valve position. The first and second end disks are parallel to each other, are arranged at opposite axial ends of, and perpendicular to, the closing element, and rotate around a pivot axis. The first and second end disks each comprise a radial clamping nose which acts with the support portion to radially push the closing element against the opening seat in a closed valve position.
    Type: Grant
    Filed: October 19, 2012
    Date of Patent: February 21, 2017
    Assignee: PIERBURG PUMP TECHNOLOGY GMBH
    Inventors: Arnaud Fournier, Gerald Picco, Damien Charpentier
  • Publication number: 20170008501
    Abstract: An arrangement of motor vehicle units includes a vacuum pump, a power brake unit, a pump which pumps a hydraulic fluid with a control pressure, and a control valve. The vacuum pump comprises a pump rotor, a coupling element, a control connection, a coupling arrangement switchable by the control connection to lock/unlock the coupling element with the pump rotor, and a suction connection. The power brake unit comprises a negative pressure chamber connected with the suction connection. The control valve, when unlocked, switches the control pressure of the hydraulic fluid through to the control connection to unlock. The control valve comprises an actuator acted on by a pressure of the negative pressure chamber which switches the control pressure through to the control connection if the pressure in the negative pressure chamber is greater than a threshold pressure so that the switchable control valve is switched into its unlocked state.
    Type: Application
    Filed: December 19, 2013
    Publication date: January 12, 2017
    Applicant: PIERBURG PUMP TECHNOLOGY GMBH
    Inventor: SEBASTIAN CRAMER
  • Publication number: 20170009770
    Abstract: A motor vehicle vacuum pump includes a pumping chamber in which a pump rotor rotates to compress a gas, an outlet chamber into which the gas exits, a separation wall which includes a valve opening and a valve seat arranged on an outlet side of the separation wall around the valve opening. The separation wall separates the pumping chamber from the outlet chamber. An outlet valve is formed as a non-return valve in the separation wall. The outlet valve is formed by the valve opening in the separation wall and includes a valve body with a closing body. The outlet valve has the gas exit therethrough from the pumping chamber into the outlet chamber. A corresponding part of the closing body is supported on the valve seat when the closing body is in a closed position. The valve seat and/or the corresponding part of the closing body includes microgrooves.
    Type: Application
    Filed: February 2, 2015
    Publication date: January 12, 2017
    Applicant: PIERBURG PUMP TECHNOLOGY GMBH
    Inventors: ENVER DES, MORITZ JOHANNES JOB
  • Publication number: 20170002815
    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: Application
    Filed: December 19, 2013
    Publication date: January 5, 2017
    Applicant: PIERBURG PUMP TECHNOLOGY GMBH
    Inventor: SEBASTIAN CRAMER
  • Publication number: 20160365768
    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: Application
    Filed: January 14, 2015
    Publication date: December 15, 2016
    Applicant: PIERBURG PUMP TECHNOLOGY GMBH
    Inventors: VLADIMIR POPOV, MAIK WABERSKI, RONALD RATHKE, JENS TEUBEL
  • Patent number: 9464635
    Abstract: A mechanical coolant pump for an internal combustion engine includes a pump rotor wheel comprising rotor blades configured to pump a coolant radially outward. A non-rotating ring of pump stator blades is configured to encircle the pump rotor wheel. At least one of the pump stator blades is a static blade. At least one of the pump stator blades is a pivotable blade configured to pivot about a pivot axis arranged within the pivotable blade.
    Type: Grant
    Filed: March 24, 2011
    Date of Patent: October 11, 2016
    Assignee: PIERBURG PUMP TECHNOLOGY GMBH
    Inventors: Arnaud Fournier, Gilles Simon
  • Publication number: 20160290335
    Abstract: A variable displacement lubricant pump includes a control ring, a pump rotor with radially-slidable vanes which rotate in the control ring, and a pressure control system to control a lubricant discharge pressure. The pressure control system includes a pressure control chamber which pushes the control ring into a high pumping volume direction, a pilot chamber 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 port connected to the pressure control chamber, a control valve body which connects/disconnects the control port to atmospheric pressure, first and second valve chambers arranged at opposite ends of the control valve body, and a fluidic valve control line comprising a discharge valve which discharges the lubricant from the second valve chamber to atmospheric pressure.
    Type: Application
    Filed: November 21, 2013
    Publication date: October 6, 2016
    Applicant: PIERBURG PUMP TECHNOLOGY GMBH
    Inventors: CARMINE CUNEO, GIACOMO ARMENIO, MASSIMILIANO LAZZERINI
  • Patent number: 9458757
    Abstract: A motor vehicle coolant pump for supplying coolant to an engine includes a two-part pump housing comprising a pump rotor housing part and a body housing part. The pump rotor housing part comprises a first mounting flange, and the body housing part comprises a second mounting flange which together fix the housing parts with respect to each other and allow a mounting of the housing parts on each other in every rotary position. A pump rotor is arranged in the pump rotor housing part. An axial coolant inlet and a tangential coolant outlet are provided on the pump rotor housing part. A rotary fixation comprises a recess at the pump rotor housing part and a nose which engages in the recess. The rotary fixation allows the pump rotor housing part and the body housing part to be mounted with respect to each other in only one single rotational angle.
    Type: Grant
    Filed: August 1, 2011
    Date of Patent: October 4, 2016
    Assignee: PIERBURG PUMP TECHNOLOGY GMBH
    Inventors: Stephan Schreckenberg, Thomas Wienecke, Bjoern Isenberg
  • Publication number: 20160252090
    Abstract: A variable displacement lubricant pump for providing a pressurized lubricant for an internal combustion engine. The variable displacement lubricant pump includes a shiftable control ring, a pump rotor comprising a plurality of slidable vanes which rotate in the control ring, a hydraulic pressure control comprising a control chamber which comprises a lateral control chamber wall, and a control ring plunger shiftable along the lateral control chamber wall, a first eccentricity limiting opening arranged in the lateral control chamber wall, a second eccentricity limiting opening arranged in the lateral control chamber wall, and an eccentricity limiting control system which connects or disconnects the first eccentricity limiting opening and the second eccentricity limiting opening to atmospheric pressure dependent on a lubricant temperature. The hydraulic pressure control directly actuates and controls an eccentricity of the control ring.
    Type: Application
    Filed: October 21, 2013
    Publication date: September 1, 2016
    Applicant: PIERBURG PUMP TECHNOLOGY GMBH
    Inventor: BERNARDO CELATA
  • Patent number: 9394891
    Abstract: A lubricant pump for pumping a pressurized lubricant to an engine includes a shiftable control ring, a pump rotor, a pump outlet port, a pressure control system and a preload control arrangement. The pressure control system comprises a first pressure control chamber, a first pressure conduit connecting the pump outlet port with the first pressure control chamber, and a pressure control valve. The pressure control valve comprises an outlet port, a control valve cylinder wall comprising a control port connected with the outlet port, a control plunger which opens and closes the control port, an input pressure plunger connected with the control plunger, and a control spring preloading the control plunger into a closed position. The preload control arrangement comprises a preload cylinder, a preload plunger in the preload cylinder supporting a basis of the control spring, a preload cylinder inlet, and a preload control valve controlling a lubricant pressure.
    Type: Grant
    Filed: February 21, 2011
    Date of Patent: July 19, 2016
    Assignee: PIERBURG PUMP TECHNOLOGY GMBH
    Inventor: Carmine Cuneo
  • Patent number: 9366256
    Abstract: An oil-lubricated automotive volumetric vacuum pump includes a circumferential pump room wall surrounding a pump room. A rotor comprises a rotor body with an oil receiving cavity and a guiding slot. The rotor body is adjacent to the pump room wall. The rotor rotates inside the pump room. A vane with a vane body and a vane end portion shifts in the guiding slot. The rotor body, the vane, and the circumferential pump room wall define at least two pump chambers. An oil discharge channel with a flow opening in a plane is arranged at the vane end portion of the vane and/or at the guiding slot. The flow opening opens so that oil can flow from a pump chamber through the oil discharge channel to the oil receiving cavity only in a retracted position of the vane end portion during a final compression phase of the respective pump chamber.
    Type: Grant
    Filed: June 18, 2013
    Date of Patent: June 14, 2016
    Assignee: PIERBURG PUMP TECHNOLOGY GMBH
    Inventor: Alessandro Testa
  • Publication number: 20160138592
    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: Application
    Filed: June 13, 2013
    Publication date: May 19, 2016
    Applicant: PIERBURG PUMP TECHNOLOGY GMBH
    Inventors: MAURIZIO MORIGLIA, NICOLA CELATA, BERNARDO CELATA
  • Patent number: 9333958
    Abstract: A pneumatic brake assistance arrangement includes a vacuum brake assistance unit comprising a vacuum chamber, and a vacuum pump. The vacuum pump comprises an input shaft, a pumping unit, and a magneto-rheological clutch. The pumping unit comprises a pump rotor and a suction port connected to the vacuum chamber. The magneto-rheological clutch comprises an input clutch body, an output clutch body, a closed clutch liquid gap, a permanent magnet element, and a pneumatic control circuit. The permanent magnet element shifts between an engaged and a disengaged position. The pneumatic control circuit moves the permanent magnet element between the engaged and the disengaged position. The pneumatic control circuit comprises a pneumatic actuation chamber comprising a piston and a passive pretension element. The pneumatic actuation chamber is connected to the vacuum chamber. The piston shifts the permanent magnet element into the engaged position when a high pressure exists in the vacuum chamber.
    Type: Grant
    Filed: August 23, 2012
    Date of Patent: May 10, 2016
    Assignee: PIERBURG PUMP TECHNOLOGY GMBH
    Inventors: Raffaele Squarcini, Elisa Bartalesi, Francesco Bucchi
  • Publication number: 20160115960
    Abstract: A coolant pump includes a pump frame, a driving wheel driven by an engine, a pump wheel driven by the driving wheel, and a clutch which couples the driving wheel with the pump wheel. The clutch comprises a friction surface arranged at the driving wheel, and a clutch disc which corresponds to the friction surface. The clutch disk is connected with and co-rotates with the pump wheel, and is axially shiftable between an engaged and a disengaged position. An axial pretension spring pretensions the clutch disc into the disengaged position. A permanent magnet forces the clutch disc into the engaged position. An electromagnet, when energized, generates a polarization which is opposite to a polarization of the permanent magnet to reduce a total magnetic attraction force of the permanent magnet with respect to the clutch disc and to thereby push the clutch disc into the disengaged position via the pretension spring.
    Type: Application
    Filed: June 14, 2013
    Publication date: April 28, 2016
    Applicant: PIERBURG PUMP TECHNOLOGY GMBH
    Inventors: Arnaud FOURNIER, Jean-Christophe SCHNEIDER, Markus SCHALONG
  • Patent number: 9243649
    Abstract: An adjustable mechanical coolant pump for an internal combustion engine includes a pump rotor wheel comprising an axial inlet. The pump rotor wheel is configured to pump a coolant radially outwardly. Variable pump stator blades are arranged so as to pivot radially outwardly at a circle concentrically with the pump rotor wheel. A control ring is configured to pivot the variable pump stator blades when the control ring is rotated. An actuator is configured to rotate the control ring so as to pivot the variable pump stator blades between an open position and a closed position. A pump housing body is configured to support the variable pump stator blades and the control ring. A separate static blade holding frame is mounted to the pump housing body. The variable pump stator blades and the control ring are captively mounted at the separate static blade holding frame.
    Type: Grant
    Filed: March 5, 2010
    Date of Patent: January 26, 2016
    Assignee: PIERBURG PUMP TECHNOLOGY GMBH
    Inventors: Arnaud Fournier, Gilles Simon, Gabriel Mele, Eric Majchrzak, Gilles Magnier
  • Publication number: 20150308432
    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: Application
    Filed: August 23, 2012
    Publication date: October 29, 2015
    Applicant: PIERBURG PUMP TECHNOLOGY GMBH
    Inventors: Raffaele SQUARCINI, Elisa BARTALESI, Giacomo ARMENIO, Francesco BUCCHI, Rocco RIZZO, Antonio MUSOLINO, Paola FORTE, Francesco FRENDO, Alessandro FRANCESCHINI
  • Patent number: 9145855
    Abstract: An electric exhaust gas recirculation valve for an internal combustion engine of a motor vehicle includes a motor rotor. A drive motor is configured to be mechanically commutated. The drive motor comprises a plastic carrier panel lying in a transverse plane arranged at a longitudinal end of the drive motor. The plastic carrier panel comprises, on a side facing the motor rotor, at least two commutator brushes and suppression reactance coils assigned to the at least two commutator brushes. Suppression capacitors are arranged on a side averted from the motor rotor. A valve body. A reduction gearing is connected to the drive motor. The reduction gearing is mechanically connected to the valve body.
    Type: Grant
    Filed: June 29, 2011
    Date of Patent: September 29, 2015
    Assignee: PIERBURG PUMP TECHNOLOGY GMBH
    Inventors: Enrico Lindner, Mathias Zill, Ronald Rathke, Frank Schwabbauer
  • Publication number: 20150260240
    Abstract: A mechanical combustion-engine-driven fluid pump includes an input shaft driven by a combustion engine, a pumping unit comprising a pump rotor, and a clutch arranged between the input shaft and the pump rotor. The clutch comprises an input clutch body, an output clutch body, an electroconductive element, a permanent magnet element, and an actuator. The clutch transfers a rotation of the input clutch body to the output clutch body in an engaged clutch state. The closed clutch liquid gap is formed between the input clutch body and the output clutch body, and is filled with a magneto-rheological clutch liquid. The electroconductive element co-rotates with the output clutch body. The permanent magnet element co-rotates with the input clutch body and is shiftable between an engaged position and a disengaged position. The actuator moves the permanent magnet element between the engaged position and the disengaged position.
    Type: Application
    Filed: August 23, 2012
    Publication date: September 17, 2015
    Applicant: Pierburg Pump Technology GmbH
    Inventors: Raffaele Squarcini, Elisa Bartalesi, Giacomo Armenio, Francesco Bucchi, Rocco Rizzo, Antonio Musolino, Paola Forte, Francesco Frendo, Alessandro Franceschini
  • Patent number: 9133738
    Abstract: A variable displacement lubricant pump providing a pressurized lubricant for an engine includes a control ring. A pump housing comprises a pump rotor with radially slidable vanes which rotate in the control ring. A pressure control chamber pushes the control ring into a low pumping volume direction against a force of a flexible pretensioning element. The pressure control chamber is connected with a pump outlet port via a first pressure conduit. A pretension control unit adjusts discharge pressures of the pressurized lubricant. The pretension control unit comprises a pretension cylinder with a plunger and an outlet opening arranged in a cylinder wall. The plunger is axially moveable and supports the flexible pretensioning element to push the control ring into a high pumping volume direction. The pretension cylinder is connected with the pump outlet port via a second pressure conduit. The outlet opening is connectable to a low-pressure via an electrical pretension control valve.
    Type: Grant
    Filed: November 24, 2010
    Date of Patent: September 15, 2015
    Assignee: PIERBURG PUMP TECHNOLOGY GMBH
    Inventor: Carmine Cuneo