Patents by Inventor Kurt Reutlinger
Kurt Reutlinger 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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Publication number: 20130328435Abstract: Method for producing a stator winding (18) of an electric machine (10), in particular an AC generator, wherein the stator winding (18) has at least n phase windings (120, 121, 122, 123, 124), and one phase winding (120, 121, 122, 123, 124) has a plurality of successive wound coils (82) with coil sides (88) and coil side connectors (91), wherein the coils (82) are divided into first coils (82.1) and second coils (82.2), with a forming tool (100), in which slots (105, 106) are provided which are suitable for accommodating the coils (82), wherein a first coil (82.1) is arranged in a slot (105), and a second coil (82.2) is arranged in the same slot (105).Type: ApplicationFiled: December 1, 2011Publication date: December 12, 2013Applicant: ROBERT BOSCH GMBHInventors: Gert Wolf, Klaus Herbold, Gerlinde Weber, Christoph Schwarzkopf, Eberhard Rau, Alexander Mueller, Helmut Kreuzer, Kurt Reutlinger
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Publication number: 20130293182Abstract: The invention relates to an electronically commutated electric machine (2) comprising: a rotor (21); an exciting winding (6) that is located at the rotor (21) in order to generate or alter a direct magnetic field in the rotor (21); a stator (22) comprising a three- or multi-phase stator winding (23) with phases that can be controlled via phase lines (8). The exciting winding (6) is connected to the stator winding (23).Type: ApplicationFiled: November 22, 2011Publication date: November 7, 2013Applicant: ROBERT BOSCH GMBHInventors: Martin Neuburger, Kurt Reutlinger
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Patent number: 8354770Abstract: An alternator for motor vehicles, having a rotor, whose poles are developed as claw-poles. In order to improve the design options of the stator of the machine, its multiphase winding is developed as a fractional-slot winding, whereby, in particular with respect to the selection of the number of slots, many additional options are created, by which both the production is made clearly simpler and less costly and, at the same time, the electrical properties are able to be improved.Type: GrantFiled: June 4, 2007Date of Patent: January 15, 2013Assignee: Robert Bosch GmbHInventors: Gert Wolf, Alexander Shendi, Kurt Reutlinger
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Publication number: 20120139383Abstract: The invention relates to a method for producing a stator winding (18) of an electric machine (10), in particular of an alternator, the stator winding (18) comprising at least n phase windings (120, 121, 122, 123, 124) and a phase winding (120, 121, 122, 123, 124) having several directly consecutively wound coils (82) having coil sides (88) and coil side connectors (91), the coils (82) being divided into first coils (82.1) and second coils (82.2), by means of a forming tool (100), in which grooves (105, 106; 105?, 106?) suitable for accommodating the coils (82) are provided, a first coil (82.1) being arranged in one groove (105; 105?) and a second coil (82.2) being arranged in another groove (105; 105?), characterized in that n?1 grooves (105, 106; 105?, 106?) are arranged between the first coil (82.1) and the second coil (82.2).Type: ApplicationFiled: May 31, 2010Publication date: June 7, 2012Applicant: ROBERT BOSCH GMBHInventors: Gert Wolf, Eberhard Rau, Alexander Mueller, Kurt Reutlinger
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Publication number: 20110304233Abstract: The invention relates to an electric machine, particularly a transversal flux machine, comprising a rotor (1) designed as outer rotor (2) or inner rotor (57), comprising at least one reflux ring (7) having a longitudinal axis (27, 39, 52), permanent magnets (3, 31, 44, 58) having alternating magnetic polarity (14, 32) being disposed in an angular offset manner on said reflux ring. According to the invention, the reflux ring (7) comprises at least two axially adjacently joined reflux partial rings (5, 6, 28, 29, 35, 43, 50, 51, 60, 61) and the permanent magnets (3, 31, 44, 58) are located in the gaps (17) between the permanent magnets (3, 31, 44, 58) of the other reflux partial ring (5, 6, 28, 29, 35, 43, 50, 51, 60, 61) when joining the two reflux partial rings (5, 6, 28, 29, 35, 43, 50, 51, 60, 61). The invention further relates to a method for producing an electric machine.Type: ApplicationFiled: November 17, 2009Publication date: December 15, 2011Applicant: ROBERT BOSCH GMBHInventors: Reinhard Meyer, Hubert Greif, Kurt Reutlinger, Markus Heidrich, Roberto Carlos Retana Hernández
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Publication number: 20110235381Abstract: A rectifier bridge circuit is described for rectifying the phase voltage generated by a generator, including a positive half-bridge having multiple rectifier elements and a negative half-bridge having multiple rectifier elements. The rectifier elements each have a controllable switch having a diode connected in parallel. A control circuit is provided for switching the switches on and off. The switch-on time tswitch on setpoint and/or the switch-off time tswitch off setpoint of the switch is/are computed based on a characteristic map or a mathematical function.Type: ApplicationFiled: September 25, 2009Publication date: September 29, 2011Inventors: Gert Wolf, Paul Mehringer, Kurt Reutlinger, Gerhard Walter
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Publication number: 20110227442Abstract: The invention relates to a synchronous machine with hybrid energisation, in particular a generator for supplying the electrical system of a motor vehicle, comprising a laminated stator (16) with a multiphase stator winding (18) and a laminated rotor (20) with an energiser winding (29), which together with permanent magnets (24,25) around the rotor periphery, provides the energisation for the machine. According to the invention, favorable electrical and magnetic properties and an improvement in manufacturing conditions of the machine can be achieved, wherein the grooves (40) for the energiser windings (29) are disproportionately enlarged in relation to the groove base (44) and are preferably bell-shaped.Type: ApplicationFiled: August 13, 2009Publication date: September 22, 2011Applicant: Robert Bosch GmbHInventors: Kurt Reutlinger, Markus Heidrich
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Publication number: 20110215744Abstract: The invention relates to a method for providing information on a rotor position of a rotor of an electric machine (2) for utilization in a function connected downstream, comprising the following steps: —determining at least one electric operating variable of a stator winding of the electric machine, particularly a phase current and/or a phase voltage; —determining a rotor position as a function of the electric operating variable—providing information on the rotor position determined as a function of the electric operating variable for the function connected downstream if the rotational speed of the electric machine (2) exceeds a threshold rotational speed (SW).Type: ApplicationFiled: July 30, 2009Publication date: September 8, 2011Applicant: ROBERT BOSCH GMBHInventors: Daniel Kocher, Rolf Jaros, Kurt Reutlinger
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Publication number: 20110210637Abstract: The invention relates to an electric machine, in particular to a generator for supplying the electrical system of a motor vehicle, comprising a laminated rotor (20) with an energiser winding (29), which provides the energisation for the machine preferably in conjunction with permanent magnets (24, 25) arranged on the rotor periphery. According to the invention, the rotor laminate bundle (21) is made up of at least two part bundles (21a, b) in the axial direction with grooves (40) running into each other and with poles offset relative to each other (32 to 38). A machine with reduced detent torque is thus obtained with grooves (40) aligned parallel to the axis, in which the energiser windings (29) can be placed with a high filling factor and without production difficulties and without the risk of damaging the winding insulation.Type: ApplicationFiled: July 21, 2009Publication date: September 1, 2011Applicant: ROBERT BOSCH GMBHInventor: Kurt Reutlinger
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Publication number: 20110057597Abstract: The invention relates to an electrical machine and to a method for the operation thereof, particularly as a drive motor for an electrical tool or as starter generator for a motor vehicle. The electrical machine includes a rotor excited by a permanent magnet and a stator carrying a multi-phase winding, and operates in a voltage-controlled, lower rotational speed range via a transformer on a DC voltage source. The electrical machine can also be operated in a higher rotational speed range by field weakening, and the structure of the machine can be changed by reducing the flux linkage between the rotor and the stator in order to weaken the field. Preferably, the change to the structure of the machine is carried out by turning off winding parts or by switching them between series and parallel connections.Type: ApplicationFiled: July 7, 2008Publication date: March 10, 2011Inventors: Volker Bosch, Kurt Reutlinger
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Publication number: 20100289370Abstract: The invention relates to an electric machine (1), in particular a synchronous machine, comprising a stator arrangement (3) having twelve stator teeth (2) and a rotor (6) having ten rotor poles (4). Said rotor poles (4) are separated by air gaps (9) and the rotor poles (4) are embodied as sinus poles.Type: ApplicationFiled: April 28, 2008Publication date: November 18, 2010Applicant: Robert Bosch GMBHInventors: Karl-Juergen Roth, Kurt Reutlinger
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Publication number: 20100207480Abstract: A synchronous electric machine having a fixed stator, a multi-phase stator winding and having a rotor which has poles, excited in a predefined sequence, over its circumference, the number of poles being changeable as a function of the intensity and the direction of a field current in at least one field coil of the rotor. For improving the efficiency of the machine and for reducing the number of field coils and the entire coil cross section it is provided that the rotor has a laminated core, laminated in the axial direction, which has grooves on the circumference for accommodating the at least one field coil and that the at least one field coil is situated on the circumference of the rotor with a step size which corresponds to the pole pitch of the lower number of poles.Type: ApplicationFiled: May 8, 2008Publication date: August 19, 2010Inventor: Kurt Reutlinger
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Publication number: 20100187941Abstract: The invention relates to a synchronous motor (3) comprising a stator (3) with 18 stator teeth (2). The stator comprises stator coils (7) surrounding the stator teeth (2). The rotor (5) has eight pole magnets (6), each stator coil (7) surrounding at least two stator teeth (2).Type: ApplicationFiled: January 25, 2008Publication date: July 29, 2010Applicant: Robert Bosch GMBHInventors: Karl-Juergen Roth, Kurt Reutlinger
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Publication number: 20100156230Abstract: An alternator for motor vehicles, having a rotor, whose poles are developed as claw-poles. In order to improve the design options of the stator of the machine, its multiphase winding is developed as a fractional-slot winding, whereby, in particular with respect to the selection of the number of slots, many additional options are created, by which both the production is made clearly simpler and less costly and, at the same time, the electrical properties are able to be improved.Type: ApplicationFiled: June 4, 2007Publication date: June 24, 2010Inventors: Gert Wolf, Alexander Shendi, Kurt Reutlinger
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Publication number: 20100102663Abstract: The present invention relates to an electrical machine having a rotor, a stator, a rotating-field production device, and a pole-field production device. The rotor can rotate about a rotation axis which passes through opposed upper and lower portions of the rotor. The rotating-field production produces an essentially radial magnetic field which rotates about the rotation axis of the rotor. The pole-field production device produces a magnetic field of opposite polarity to the rotor on the upper and lower portions. In order to reduce the size of the electrical machine without reducing the power, the pole-field production device has at least one magnet.Type: ApplicationFiled: November 13, 2007Publication date: April 29, 2010Inventors: Alexandra Wilde, Arndt Kelleter, Kurt Reutlinger
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Patent number: 7697826Abstract: A hand-guided or stationary power tool has a drive unit having a motor that includes a rotor having a permanent magnet and a stator and has a motor control designed to trigger the motor in a first rotational speed range according to a voltage-controlled mode and to trigger the motor in a second rotational speed range following the first rotational speed range in the direction of a higher rotational speed according to a field-weakening operation.Type: GrantFiled: May 3, 2005Date of Patent: April 13, 2010Assignee: Robert Bosch GmbHInventors: Kurt Reutlinger, Volker Bosch
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Patent number: 7055481Abstract: A method and a device for rapidly warming up a liquid-cooled internal combustion engine, in particular of a motor vehicle engine, by warming up the cooling liquid. The cooling liquid is warmed in a simple manner without additional provision of heating elements in that the cooling liquid is warmed using a generator that is operated during a heating phase at an operating point having high power loss and at the operating temperature of the engine at an operating point having low power loss.Type: GrantFiled: November 11, 2002Date of Patent: June 6, 2006Assignee: Robert Bosch GmbHInventor: Kurt Reutlinger
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Publication number: 20050140240Abstract: A rotor for an electrical machine (30), in particular a short-circuited rotor for an asynchronous machine, is proposed, whereby teeth (16) and grooves (13) alternate on the periphery, and the groove spacing (?n) is not constant.Type: ApplicationFiled: June 12, 2003Publication date: June 30, 2005Inventors: Kurt Reutlinger, Karl-Juergen Roth
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Patent number: 6907793Abstract: A method and an apparatus for determining a torque (MGL) of an electrical machine (19), in particular a generator (19) in a motor vehicle, are proposed. The method and the apparatus are characterized in that by a unit (43), the torque (MGL) of the electrical machine (19) is ascertained as a function of a current electrical power (PG) of the generator (19), a current generator rpm (NG), and a current generator efficiency (nG).Type: GrantFiled: June 9, 2001Date of Patent: June 21, 2005Assignee: Robert Bosch GmbHInventors: Kurt Reutlinger, Clemens Schmucker, Torsten Baumann
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Publication number: 20040154573Abstract: A method and a device for rapidly warming up a liquid-cooled internal combustion engine, in particular of a motor vehicle engine, by warming up the cooling liquid. The cooling liquid is warmed in a simple manner without additional provision of heating elements in that the cooling liquid is warmed using a generator (1) that is operated during a heating phase at an operating point (AP′) having high power loss and at the operating temperature of the engine at an operating point (AP) having low power loss.Type: ApplicationFiled: March 22, 2004Publication date: August 12, 2004Inventor: Kurt Reutlinger