Patents by Inventor Georg Bernreuther
Georg Bernreuther has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11081915Abstract: A rotor device for an electric motor and/or generator with a rotor body and a plurality of magnets, wherein the rotor body comprises a rotor shaft seat and a plurality of magnet receptacles arranged coaxially with the rotor shaft seat. The magnets are rigidly positioned and mounted in the magnet receptacles by means of a plastic molding compound injected into the magnet receptacles, which plastic molding compound forms at least one cover element that covers the openings of the magnet receptacles at least partially. The cover element comprises at least one magnet wheel centering means and/or at least one magnet wheel alignment means. The invention furthermore relates to a rotor and a motor with such a rotor device as well as to a production method.Type: GrantFiled: May 30, 2018Date of Patent: August 3, 2021Assignee: BÜHLER MOTOR GMBHInventor: Georg Bernreuther
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Patent number: 11081916Abstract: A rotor device for an electric motor and/or generator with a rotor body and a plurality of magnets, wherein the rotor body comprises a rotor shaft seat and a plurality of magnet receptacles arranged coaxially with the rotor shaft seat. The magnets are rigidly positioned and mounted in the magnet receptacles by means of a plastic molding compound injected into the magnet receptacles, which plastic molding compound forms at least one cover element that covers the openings of the magnet receptacles at least partially. The cover element comprises at least one magnet wheel centering means and/or at least one magnet wheel alignment means. The invention furthermore relates to a rotor and a motor with such a rotor device as well as to a production method.Type: GrantFiled: April 11, 2019Date of Patent: August 3, 2021Assignee: BÜHLER MOTOR GMBHInventor: Georg Bernreuther
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Patent number: 10784740Abstract: A drive including a commutator motor having a motor housing, an end shield secured to the housing, feedthroughs defined in the end shield, brushes mounted in the feedthroughs; and at least one stranded conductor forming a direct electrical and mechanical connection between a brush and the terminal contact arranged outside the motor housing.Type: GrantFiled: January 8, 2019Date of Patent: September 22, 2020Assignee: BÜHLER MOTOR GMBHInventors: Michael Antes, Bernd Reinecker, Georg Bernreuther
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Publication number: 20190238015Abstract: A rotor device for an electric motor and/or generator with a rotor body and a plurality of magnets, wherein the rotor body comprises a rotor shaft seat and a plurality of magnet receptacles arranged coaxially with the rotor shaft seat. The magnets are rigidly positioned and mounted in the magnet receptacles by means of a plastic molding compound injected into the magnet receptacles, which plastic molding compound forms at least one cover element that covers the openings of the magnet receptacles at least partially. The cover element comprises at least one magnet wheel centering means and/or at least one magnet wheel alignment means.Type: ApplicationFiled: April 11, 2019Publication date: August 1, 2019Applicant: Bühler Motor GmbHInventor: Georg Bernreuther
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Patent number: 10352994Abstract: A magnet assembly in an electric drive having a shaft. The assembly includes a permanent magnet bonded in plastic and having two protrusions. An adapter has two protrusions and two recesses. The end face of the shaft has two cavities, which receive the two adapter protrusions to mount the adapter to the shaft. The two protrusions of the magnet are received in the recesses in the adapter in order to mount the magnet to the adapter. In another embodiment the shaft has an outer circumferential surface. Here, the adapter has a recess of a first shape and a second recess for mounting the adapter onto the outer circumferential surface of the shaft and the permanent magnet has a protrusion shaped to mate with the first shape of the first recess in the adapter, and the first recess is configured to receive the protrusion to mount the magnet to the adapter.Type: GrantFiled: September 27, 2017Date of Patent: July 16, 2019Assignee: BÜHLER MOTOR GMBHInventors: Matthias Ahrens, Georg Bernreuther, Olaf Richter, Andreas Wall
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Publication number: 20190214877Abstract: A drive including a commutator motor having a motor housing, an end shield secured to the housing, feedthroughs defined in the end shield, brushes mounted in the feedthroughs; and at least one stranded conductor forming a direct electrical and mechanical connection between a brush and the terminal contact arranged outside the motor housing.Type: ApplicationFiled: January 8, 2019Publication date: July 11, 2019Applicant: Bühler Motor GmbHInventors: Michael Antes, Bernd Reinecker, Georg Bernreuther
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Publication number: 20190199156Abstract: A stator of a three-phase electronically commutated DC motor, having a stator core, an insulating material body and a coil wire, wherein the stator core has a closed back iron and a plurality of stator poles pointing radially inwardly from the back iron, which contacts the insulating material body axially at the stator core, and covers both the back iron and also the stator poles. The stator is for a brushless DC motor designed in such a way that it is designed for a 48V on-board electrical system, being especially compact and nevertheless reliably preventing coil wires of different phases from touching each other and an economical production process being used.Type: ApplicationFiled: December 19, 2018Publication date: June 27, 2019Applicant: Bühler Motor GmbHInventors: Georg Bernreuther, Matthias Ahrens
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Patent number: 10267313Abstract: A centrifugal pump impeller in an electromotive centrifugal pump, the impeller including a base body having a bearing to which is attached, on a first end, a permanent-magnetic rotor and, on a second end, a cover disk that is mounted on the base body; and a plurality of pump blades made of first and second parts, the first part being a base blade segment attached to the base body thus forming a first unitary piece and a cover disk blade segment attached to the cover disk thus forming a second unitary piece.Type: GrantFiled: January 26, 2015Date of Patent: April 23, 2019Assignee: BÜHLER MOTOR GMBHInventors: Georg Bernreuther, Olai Ihle, Klaus Weiske
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Publication number: 20190109516Abstract: A fluid pump, having a pump impeller, mounted so as to rotate around an axle, in a conveyed medium in a wet area and a conductor plate, which is arranged in a dry area sealed off from the conveyed medium, wherein radial forces of the axle are accommodated, on one side, by a separating wall between the dry area and the wet area and by a pump head on the other side. The object of the invention is to provide structural features to ensure an optimum dissipation of heat from a conductor plate and its power components to the conveyed medium without negatively impacting the hydraulic efficiency of the pump.Type: ApplicationFiled: October 4, 2018Publication date: April 11, 2019Applicant: Bühler Motor GmbHInventor: Georg Bernreuther
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Publication number: 20180375400Abstract: An electric motor for a fluid pump, in particular an oil pump, the electric motor comprising a housing in which a stator, a rotor, and a tapping plate are arranged, wherein the tapping plate comprises connecting contacts for the electrical connection to windings of the stator and connecting elements for connecting to an electronic control system and/or electronic positioning system, the tapping plate is formed or overmolded by a plastic material, and the stator is encased by an overmolding which forms a bearing seat for the rotor. The invention furthermore relates to a modular motor family for forming different, in particular differently powerful, fluid pumps comprising several brushless electric motors, wherein the individual electric motors differ from each other by different motor diameters and/or motor lengths and/or configuration variants. The invention furthermore relates to a production method for an electric motor.Type: ApplicationFiled: July 27, 2018Publication date: December 27, 2018Applicant: Bühler Motor GmbHInventors: Matthias Ahrens, Andreas Wall, Georg Bernreuther, Arnold Scheer, Olaf Richter
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Publication number: 20180278103Abstract: A rotor device for an electric motor and/or generator with a rotor body and a plurality of magnets, wherein the rotor body comprises a rotor shaft seat and a plurality of magnet receptacles arranged coaxially with the rotor shaft seat. The magnets are rigidly positioned and mounted in the magnet receptacles by means of a plastic molding compound injected into the magnet receptacles, which plastic molding compound forms at least one cover element that covers the openings of the magnet receptacles at least partially. The cover element comprises at least one magnet wheel centering means and/or at least one magnet wheel alignment means.Type: ApplicationFiled: May 30, 2018Publication date: September 27, 2018Applicant: Bühler Motor GmbHInventor: Georg Bernreuther
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Patent number: 9976557Abstract: A pump with an integral, electronically commutated, direct-current motor (2) with permanent magnetic inner rotor disposed in a wet chamber, which forms with a turbine pump wheel (22) a compact, structural pump-rotor unit (3), a claw-pole stator (9) positioned in a dry chamber (4), the claw-pole stator (9) having four claw-pole plates (6, 6?) made of a soft magnetic material, a ring-shaped winding (12) and a claw-pole stator (9) including a soft magnetic back-iron ring (13) mounted on the claw-pole plates (6, 6?) and disposed around the winding (12) and a separating can (10), which separates the dry chamber from the wet chamber (5), characterized in that the claw-pole plates (6, 6?) and additional claw-pole plates (66, 66?) are stamped and bent together, in which a plate strip for the additional claw-pole plates (66, 66?) contains a central borehole from a previous work step.Type: GrantFiled: May 3, 2011Date of Patent: May 22, 2018Assignee: BÜHLER MOTOR GMBHInventors: Georg Bernreuther, Thomas Peterreins
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Patent number: 9948154Abstract: An electronically commutated DC motor has a stator wound with a multi-phase stator winding, a permanent magnet rotor mounted rotatably about a motor axis, a circuit board, a guide plate electrically connected to the winding and a housing component. In one implementation, a DC motor can easily be manufactured with the fewest possible process steps, which exhibits a short axial length and a low weight as well as good heat-dissipation properties. It is also an object of the invention to create a DC motor with integrated electronics, whose motor interior can be filled with oil, and which holds the electronics sealed against this oil. For reasons of logistics, an attempt is also made for partial components, such as the electronics, to be designed such that they are capable of complete prior assembly and testing.Type: GrantFiled: October 2, 2015Date of Patent: April 17, 2018Assignees: Buhler Motor GmbH, MELECS EWS GmbH & Co. KG, Swoboda KGInventors: Ralph Böhm, Georg Bernreuther, Olaf Richter, Andreas Wall, Leopold Hellinger, Gerhard Neumann, Armin Koch, Peter Woschni
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Publication number: 20180031628Abstract: A magnet sensor assembly for use in an electric drive having a shaft with a shaft end. The magnet sensor assembly includes a magnet sensor having a permanent magnet bonded in plastic, an adapter, means for mounting the magnet sensor on the shaft end of the shaft, means for connecting the adapter to the magnet sensor and a force-fit connection for mounting the adapter on the shaft end. The invention provides a magnet sensor assembly which allows as simple a connection as possible to be established between a magnet sensor and a shaft end of a shaft or an inner ring of a rolling element bearing secured to the shaft, for which simple manufacturing and mounting methods may be used which are reliable.Type: ApplicationFiled: September 27, 2017Publication date: February 1, 2018Applicant: Bühler Motor GmbHInventors: Matthias Ahrens, Georg Bernreuther, Olaf Richter, Andreas Wall
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Publication number: 20180019630Abstract: A permanent magnet rotor of an electric motor, consisting of a return body and a number of sintered permanent magnets distributed on the case of the return body at intervals, connected to a plastic mass filled with hard magnetic material. The objective of the present invention is to ensure that a generic permanent magnet rotor can be simply and economically produced, along with allowing a great degree of freedom regarding the design of the pole faces, wherein high rigidity and security of the mechanical connection between the permanent magnets and the return body are guaranteed.Type: ApplicationFiled: September 27, 2017Publication date: January 18, 2018Applicant: Bühler Motor GmbHInventors: Matthias Ahrens, Olaf Richter, Georg Bernreuther, Nikolaus Dietrich, Arnold Scheer
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Publication number: 20160099623Abstract: An electronically commutated DC motor has a stator wound with a multi-phase stator winding, a permanent magnet rotor mounted rotatably about a motor axis, a circuit board, a guide plate electrically connected to the winding and a housing component. In one implementation, a DC motor can easily be manufactured with the fewest possible process steps, which exhibits a short axial length and a low weight as well as good heat-dissipation properties. It is also an object of the invention to create a DC motor with integrated electronics, whose motor interior can be filled with oil, and which holds the electronics sealed against this oil. For reasons of logistics, an attempt is also made for partial components, such as the electronics, to be designed such that they are capable of complete prior assembly and testing.Type: ApplicationFiled: October 2, 2015Publication date: April 7, 2016Inventors: Ralph Böhm, Georg Bernreuther, Olaf Richter, Andreas Wall, Leopold Hellinger, Gerhard Neumann, Armin Koch, Peter Woschni
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Publication number: 20150211523Abstract: A centrifugal pump impeller in an electromotive centrifugal pump, the impeller including a base body having a bearing to which is attached, on a first end, a permanent-magnetic rotor and, on a second end, a cover disk that is mounted on the base body; and a plurality of pump blades made of first and second parts, the first part being a base blade segment attached to the base body thus forming a first unitary piece and a cover disk blade segment attached to the cover disk thus forming a second unitary piece.Type: ApplicationFiled: January 26, 2015Publication date: July 30, 2015Applicant: BÜHLER MOTOR GMBHInventors: Georg Bernreuther, Olai Ihle, Klaus Weiske
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Publication number: 20130266462Abstract: A pump with an integral, electronically commutated, direct-current motor (2) with permanent magnetic inner rotor disposed in a wet chamber, which forms with a turbine pump wheel (22) a compact, structural pump-rotor unit (3), a claw-pole stator (9) positioned in a dry chamber (4), the claw-pole stator (9) having four claw-pole plates (6, 6?) made of a soft magnetic material, a ring-shaped winding (12) and a claw-pole stator (9) including a soft magnetic back-iron ring (13) mounted on the claw-pole plates(6, 6?) and disposed around the winding (12) and a separating can (10), which separates the dry chamber from the wet chamber (5), characterized in that the claw-pole plates (6, 6?) and additional claw-pole plates (66, 66?) are stamped and bent together, in which a plate strip for the additional claw-pole plates (66, 66?) contains a central borehole from a previous work step.Type: ApplicationFiled: May 3, 2011Publication date: October 10, 2013Applicant: Bühler Motor GmbHInventors: Georg Bernreuther, Thomas Peterreins
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Patent number: 8203242Abstract: An electrically commutated DC motor (1) for a liquid pump (2) with a pump housing (3) with a suction connector (4) and a pressure connector (5) for connection to a hydraulic circuit, an essentially disk-like pump rotor (6) mounted to rotate in the pump housing, consisting of an impeller (7) with several pump vanes and a permanent magnet (8), a partition (11) separating a pump space (9) from a dry space (10), the partition being arranged in an axial gap (12) between the pump rotor (6) and several axially aligned stator poles (14), each provided with an insulation element (15) and stator windings (16). The task of the present invention is to configure a DC motor, so that it can be installed simply and reliably, is designed particularly robust and therefore has very high lifetime.Type: GrantFiled: December 15, 2009Date of Patent: June 19, 2012Assignee: Bühler Motor GmbHInventors: Olai Ihle, Georg Bernreuther, Klaus Weiske
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Patent number: 8174157Abstract: An electrically commutated DC motor (1) for a liquid pump (2) with a pump housing (3) with a suction connector (4) and a pressure connector (5) for connection to a hydraulic circuit, an essentially disk-like pump rotor (6) mounted to rotate in the pump housing, consisting of an impeller (7) with several pump vanes and a permanent magnet (8), a partition (11) separating a pump space (9) from a dry space (10), in which the partition is arranged in an axial gap (12) between the pump rotor (6) and several axially aligned wound stator poles (14) of the DC motor. The present invention configures a DC motor, so that it can be installed simply and reliably, is designed particularly robust and therefore has a very long operating lifetime.Type: GrantFiled: December 15, 2009Date of Patent: May 8, 2012Assignee: Bühler Motor GmbHInventors: Olai Ihle, Georg Bernreuther, Klaus Weiske