Patents Assigned to PIERBURG PUMP TECHNOLOGY GMBH
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Publication number: 20190334392Abstract: 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: ApplicationFiled: July 6, 2016Publication date: October 31, 2019Applicant: PIERBURG PUMP TECHNOLOGY GMBHInventors: ENRICO LINDNER, MATHIAS ZILL, TONI HENKE
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Patent number: 10458414Abstract: 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: GrantFiled: March 6, 2014Date of Patent: October 29, 2019Assignee: PIERBURG PUMP TECHNOLOGY GMBHInventors: Alessandro Malvasi, Andreas Wulf
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Publication number: 20190323506Abstract: 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: ApplicationFiled: June 22, 2016Publication date: October 24, 2019Applicant: Pierburg Pump Technology GmbHInventors: Sebastian CRAMER, Nabil Salim AL-HASAN, Daniel MUELLER
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Publication number: 20190326798Abstract: 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: ApplicationFiled: December 22, 2016Publication date: October 24, 2019Applicant: PIERBURG PUMP TECHNOLOGY GMBHInventors: FRANK BUERGER, ANDREAS WULF, WOLFGANG PILENZ
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Patent number: 10443599Abstract: 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: GrantFiled: December 9, 2015Date of Patent: October 15, 2019Assignee: PIERBURG PUMP TECHNOLOGY GMBHInventors: Alexander Graulich, Karl-Heinz Kirberg, Klaus Vosmerbaeumer
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Publication number: 20190293069Abstract: 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: ApplicationFiled: October 12, 2016Publication date: September 26, 2019Applicant: PIERBURG PUMP TECHNOLOGY GMBHInventor: CARMINE CUNEO
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Patent number: 10415568Abstract: 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: GrantFiled: September 17, 2012Date of Patent: September 17, 2019Assignee: PIERBURG PUMP TECHNOLOGY GMBHInventors: Wolfgang Zacher, Rene Patzner
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Publication number: 20190252961Abstract: 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: ApplicationFiled: July 28, 2016Publication date: August 15, 2019Applicant: PIERBURG PUMP TECHNOLOGY GMBHInventors: ALESSANDRO MALVASI, MARTIN HELMIS
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Publication number: 20190226483Abstract: 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: ApplicationFiled: July 14, 2016Publication date: July 25, 2019Applicant: PIERBURG PUMP TECHNOLOGY GMBHInventor: STEFFEN SCHNURR
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Publication number: 20190153914Abstract: 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: ApplicationFiled: April 7, 2016Publication date: May 23, 2019Applicant: Pierburg Pump Technology GmbHInventors: Marco PARISI, Alessandro MALVASI
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Patent number: 10247186Abstract: 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: GrantFiled: June 13, 2013Date of Patent: April 2, 2019Assignee: PIERBURG PUMP TECHNOLOGY GMBHInventors: Maurizio Moriglia, Nicola Celata, Bernardo Celata
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Publication number: 20190093656Abstract: 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: ApplicationFiled: March 7, 2016Publication date: March 28, 2019Applicant: PIERBURG PUMP TECHNOLOGY GMBHInventors: GIORGIO PERONI, RAFFAELE SQUARCINI, MICHAEL ROMBACH, ANDREAS KUHNEKATH
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Patent number: 10243421Abstract: 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: GrantFiled: January 23, 2015Date of Patent: March 26, 2019Assignee: PIERBURG PUMP TECHNOLOGY GMBHInventors: Wolfgang Haensch, Maik Waberski, Michael Weinert, Joerg Hartzendorf, Ronald Rathke, Thomas Wienecke
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Patent number: 10224778Abstract: 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?×mm2/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: GrantFiled: January 14, 2015Date of Patent: March 5, 2019Assignee: PIERBURG PUMP TECHNOLOGY GMBHInventors: Vladimir Popov, Maik Waberski, Ronald Rathke, Jens Teubel
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Patent number: 10224837Abstract: 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: GrantFiled: August 14, 2014Date of Patent: March 5, 2019Assignee: PIERBURG PUMP TECHNOLOGY GMBHInventors: Martin Schumachers, Mario Jansen, Joachim Mertens
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Patent number: 10193474Abstract: 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: GrantFiled: February 10, 2015Date of Patent: January 29, 2019Assignee: PIERBURG PUMP TECHNOLOGY GMBHInventor: Toni Henke
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Publication number: 20190017505Abstract: 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: ApplicationFiled: January 12, 2016Publication date: January 17, 2019Applicant: PIERBURG PUMP TECHNOLOGY GMBHInventors: VIKTOR SCHROEDER, ALESSANDRO MALVASI, ANDREAS WULF
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Publication number: 20190020255Abstract: 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: ApplicationFiled: January 13, 2016Publication date: January 17, 2019Applicant: PIERBURG PUMP TECHNOLOGY GMBHInventors: FRANK BUERGER, MARTIN SCHUMACHERS, MICHAEL HAASE, HARALD SPIERTZ, VIKTOR SCHROEDER, ALESSANDRO MALVASI, ANDREAS WULF
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Patent number: 10180142Abstract: 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: GrantFiled: August 4, 2010Date of Patent: January 15, 2019Assignees: PIERBURG PUMP TECHNOLOGY GMBH, KOLEKTOR MAGNET TECHNOLOGY GMBHInventors: Jens Teubel, Ronald Rathke, Martin Fiedlschuster, Michael Weinert, Norbert Weber, Pietro Giannico, Friedel Schlusnus
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Publication number: 20190010943Abstract: 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: ApplicationFiled: January 12, 2016Publication date: January 10, 2019Applicant: PIERBURG PUMP TECHNOLOGY GMBHInventors: ALESSANDRO MALVASI, VIKTOR SCHROEDER