Starting And Generating Dynamo Patents (Class 290/46)
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Patent number: 12228082Abstract: A shaft assembly having: a first shaft with an inner facing surface having: an inner facing spline extending between spline ends; an inner facing projection, adjacent to one of the spline ends, extending to an inner facing projection surface; and an inner facing projection seat, adjacent to another of the spline ends; and a second shaft having an outer facing surface having: an outer facing spline extending between spline ends; an outer facing projection, adjacent to one of the spline ends of the outer facing spline, extending to an outer projection surface; and an outer facing projection seat, adjacent to another of the ends of the outer facing spline; the first shaft at least partially surrounds the second shaft; the inner facing projection surface is disposed against the outer facing projection seat; and the outer facing projection surface disposed against the inner facing projection seat.Type: GrantFiled: May 25, 2022Date of Patent: February 18, 2025Assignee: HAMILTON SUNDSTRAND CORPORATIONInventors: Erika Danckers, Andrew P. Grosskopf, Ted A. Martin, Douglas J. Turner, Aaron M. Finke
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Patent number: 12224700Abstract: A variable frequency starter generator (VFSG) system includes a VFSG having a start mode and a generate mode, a permanent magnet generator (PMG) and a main generator section and an exciter section. The system also includes a controller electrically connected to the VFSG. The controller flow start mode three phase electrical power from aircraft power to the exciter of the VFSG in the start mode and flows single phase electrical power to the exciter of the VFSG in the generate mode. The controller includes: an input active rectifier that receives input AC power and converts it to DC power and provides it to across a positive rail and negative rail; an output inverter coupled to an output of the input active rectifier; and one or more line inductors connected along one or both of the positive rail and negative rail between the input active rectifier and the output inverter.Type: GrantFiled: January 13, 2023Date of Patent: February 11, 2025Assignee: HAMILTON SUNDSTRAND CORPORATIONInventors: Brennan Fox, Mustansir H. Kheraluwala
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Patent number: 12224131Abstract: A hard start capacitor replacement unit has a plurality of capacitors in a container sized to fit in existing hard start capacitor space. The capacitors are 4 metallized film capacitors wound in a single cylindrical capacitive element. The container has a common terminal and capacitors value terminals for the plurality of capacitors, which may be connected singly or in combination to provide a selected capacitance. An electronic or other relay connects the selected capacitance in parallel with a motor run capacitor. The hard start capacitor replacement unit is thereby adapted to replace a wide variety of hard start capacitors.Type: GrantFiled: May 24, 2023Date of Patent: February 11, 2025Assignee: AmRad Manufacturing, LLCInventor: Richard W. Stockman
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Patent number: 12155323Abstract: The present disclosure contemplates a method for synchronizing a large number of generators on an AC bus simultaneously by closing the generator breakers when the generators are rotating but de-energized. Then excitation is raised for each generator simultaneously, causing the generators to synchronize as voltage increases, without large transient current surges that can damage the machines. In order to safely maximize the rate at which excitation is raised, initial excitation can be controlled using current regulation, specifically controlling excitation current instead of voltage. Once a predetermined voltage is reached, a control scheme can be switched to a voltage regulation mode, which brings the generator to the final desired voltage.Type: GrantFiled: July 11, 2022Date of Patent: November 26, 2024Assignee: Google LLCInventors: Krishnanjan Gubba Ravikumar, Mahipathi Reddy Appannagari
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Patent number: 12103698Abstract: The disclosure is directed to drive assemblies for unmanned aerial vehicles (UAVs). Specifically, the disclosure is directed to hybrid drive assembly and control system for UAVs, utilizing indexed belt tension modulation to couple and decouple an electric motor and an internal combustion engine.Type: GrantFiled: April 27, 2023Date of Patent: October 1, 2024Assignee: Lowental Hybrid Ltd.Inventor: Itay Lowental
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Patent number: 12043359Abstract: A marine propulsion system for marine vessel includes at least one battery configured to power a vessel load, a plurality of marine drives, and a control system. Each of the plurality of marine drives includes an engine, an alternator driven by the engine to charge the battery, and a propulsor selectively driven by the engine to propel the marine vessel. Each of the plurality of marine drives is configured to operate in a propulsion mode in which the engine is operated to rotate the propulsor to propel the marine vessel in a generator mode in which the engine is operated to charge the battery while the marine vessel remains stationary. The control system is configured to select a subset of the plurality of marine drives and then to operate the subset of marine drives in the generator mode to charge the battery while the marine vessel remains stationary.Type: GrantFiled: December 2, 2021Date of Patent: July 23, 2024Assignee: Brunswick CorporationInventors: Steven J. Gonring, Michael J. Lemancik, Jason S. Arbuckle
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Patent number: 11894737Abstract: A rotating field machine (200) including a stator (140) and a rotor (150) are provided. In particular, a dual-winding rotating field machine (200) in which the stator (140) includes two separate windings can be provided. In one example implementation, the stator (140) can include an excitation winding (220) configured to control an excitation current and a power winding (230) configured to control power flow to an electrical system. The dual-winding rotating field machine (200) can further include a starting mode and a generating mode. During the starting mode, both the excitation winding (220) and the power winding (230) can be coupled to one or more switching power converters (170). During the generating mode, the power winding (230) can be coupled to a variable frequency bus and the power converter (170) can be used to manage excitation power only.Type: GrantFiled: May 15, 2018Date of Patent: February 6, 2024Assignee: GE Avio S.r.l.Inventor: Davide Ronchetto
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Patent number: 11891907Abstract: A turbogenerator (1) for an aircraft (2) comprising: a turboshaft engine (3); an electric generator (4) comprising a rotor (5) driven mechanically by the turboshaft engine (3) and a stator (6) supported by a housing (7) of the electric generator (4); characterized in that the turbogenerator (1) comprises a static separator (8) for separating an air/oil mixture coming from the turboshaft engine (3), the static separator (8) being positioned around the housing (7) of the electric generator (4).Type: GrantFiled: December 18, 2020Date of Patent: February 6, 2024Assignees: SAFRAN HELICOPTER ENGINES, SAFRAN POWER UNITSInventors: Camel Serghine, Denis Antoine Julien Real
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Patent number: 11873112Abstract: The invention relates to a system for sychronising energy sources coupled to an electrical grid supplying at least one electrical load of an aircraft, said system comprising: a main source of electrical energy supplying said electrical load comprising a multi-stage generator, said multi-stage generator comprising: a primary stage comprising a generator with permanent magnets, a secondary stage comprising an excitation, and a tertiary stage comprising a main generator; an auxiliary source of electrical energy supplying said electrical load; and a device for synchronising the main source and the auxiliary source, designed to measure an electrical voltage at the outlet of the primary stage of the main source, and to control the supply of said electrical load by means of the auxiliary source of electrical energy at an electrical voltage slaved to the characteristics of frequency and phase of the electrical voltage of the primary stage.Type: GrantFiled: May 29, 2019Date of Patent: January 16, 2024Assignees: SAFRAN, SAFRAN ELECTRICAL & POWERInventors: Jean-Philippe Salanne, Stéphane Petibon, Florent Rougier, José Del Castillo, Alexander Salimian
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Patent number: 11833909Abstract: A vehicle includes driven wheels, an actuator operably coupled to the driven wheels by a drivetrain, and a braking system having friction brakes associated with the driven wheels. A controller is programmed to, in response to the vehicle being in a drift mode, decouple the driven wheels from the actuator, engage the friction brakes to lockup the driven wheels, and place the actuator in speed control and command a torque to the actuator based on a difference between a measured speed of the actuator and a target speed of the actuator.Type: GrantFiled: September 17, 2020Date of Patent: December 5, 2023Assignee: Ford Global Technologies, LLCInventor: Lars Niklas Pettersson
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Patent number: 11780315Abstract: A transmission assembly for a hybrid vehicle includes an internal combustion engine and an electric machine, wherein a first drive torque of the internal combustion engine and a second drive torque of the electric machine are transferable to a drive shaft of the hybrid vehicle via the transmission assembly, wherein the transmission assembly comprises: a first transmission input shaft, via which the first drive torque 1 of the internal combustion engine is introduced into the transmission assembly; a second transmission input shaft, via which the second drive torque of the electric machine is introduced into the transmission assembly; the drive shaft; and at least a first planetary transmission including a first ring gear, a first planetary carrier and a first sun gear; wherein the first transmission input shaft is connected via the first planetary transmission to the second transmission input shaft and to the drive shaft.Type: GrantFiled: June 29, 2017Date of Patent: October 10, 2023Assignee: GKN Automotive Ltd.Inventor: Theodor Gassmann
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Patent number: 11679887Abstract: The aircraft motor architecture comprises two reversible electric machines (3, 4), the rotors (10) of which are linked both to the low pressure shaft (1) and to the high pressure shaft (2) by transmissions (11, 12, 13, 14) alternately disengaged depending on the direction of rotation of the rotor (10), the transmissions comprising passive one-way clutches (15, 16, 17, 18), the engagement directions of which are opposed. Independent modes of operation of the machines, as a starter or as an electric generator of each of the shafts, are thus provided.Type: GrantFiled: May 18, 2018Date of Patent: June 20, 2023Assignee: SAFRANInventors: Nawal Jaljal, Fabien Desarnaud
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Patent number: 11572190Abstract: In the method for propelling an aircraft, to obtain electric energy, a fuel is combusted, and an electric machine is used, wherein the fuel is used to cool at least one part of the electric machine and contains natural gas. The propulsion system is configured to propel an aircraft, in particular according to the above-mentioned method. The propulsion system has an electric machine configured to obtain electric energy by combusting a fuel. The propulsion system further includes a natural gas tank configured to supply the fuel formed with natural gas, and a cooling device configured to cool at least one part of the electric machine. The aircraft has such a propulsion system.Type: GrantFiled: September 27, 2018Date of Patent: February 7, 2023Assignee: Rolls-Royce Deutschland Ltd & Co KGInventor: Stefan Moldenhauer
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Patent number: 11557995Abstract: A hybrid electric propulsion system includes a gas turbine engine having a low speed spool and a high speed spool. The low speed spool includes a low pressure compressor and a low pressure turbine, and the high speed spool includes a high pressure compressor and a high pressure turbine. The hybrid electric propulsion system also includes an energy storage system, an electric motor configured to augment rotational power of the high speed spool, and a controller. The controller is operable to detect a start condition of the gas turbine engine, control power delivery from the energy storage system to the electric motor based on detecting the start condition, and provide a compressor stall margin using a power-assist provided by the electric motor to the high speed spool over a targeted speed range during starting of the gas turbine engine.Type: GrantFiled: August 12, 2020Date of Patent: January 17, 2023Assignee: RAYTHEON TECHNOLOGIES CORPORATIONInventor: Gary Collopy
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Patent number: 11524677Abstract: A hybrid electric vehicle includes an engine, a motor, a battery, a coupling mechanism, an electric power generating mechanism, and a vehicle controller. The engine and motor drive driving wheels. The battery supplies electric power for running to the motor. The coupling mechanism switches coupling of the engine and the driving wheels between direct coupling and buffering coupling. The electric power generating mechanism generates electric power. The vehicle controller switches a running mode of the hybrid electric vehicle between a first running mode and a second running mode with higher running performance. The vehicle controller limits the electric power generation under a first condition when the buffering coupling is applied during the first running mode and limits the electric power generation under a second condition less limited than the first condition when the buffering coupling is applied during the second running mode.Type: GrantFiled: July 14, 2021Date of Patent: December 13, 2022Assignee: SUBARU CORPORATIONInventors: Fumiyuki Moriya, Masatoshi Kishikawa, Atsushi Doki, Hirofumi Yabe, Takumi Hoshi, Masaki Komuro, Tetsu Matsuzaki, Jun Oosawa
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Patent number: 11527975Abstract: System and methods for providing power to a generator control circuit are provided. Aspects include a generator, a first power converter comprising a first input and a first output, the first input coupled to an output of the generator and the first output coupled to a valve circuit, a second power converter comprising a second input and a second output, the second input coupled to the output of the generator and the second output coupled to the valve circuit, and a controller configured to monitor a characteristic associated with the generator, cause the first power converter to provide power to the valve circuit when the characteristic of the generator is within a first range of characteristic values, and cause the second power converter to provide power to the valve circuit when the characteristic of the generator is within a second range of characteristic values.Type: GrantFiled: March 8, 2021Date of Patent: December 13, 2022Assignee: HAMILTON SUNDSTRAND CORPORATIONInventors: Christopher Derek Thornton, Adrian E. Vandergrift, Michael Congdon
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Patent number: 11512759Abstract: An exemplary embodiment of the present invention provides a hybrid apparatus provided in a housing having one side coupled to a transmission and the other side coupled to an engine, the hybrid apparatus including: a P1 motor and a P2 motor; and a torsion damper disposed between the P1 motor and the P2 motor, in which the torsion damper includes an anti-scattering unit configured to prevent foreign substances, which are generated by compression of the torsion damper, from being released and introduced into the P1 motor and the P2 motor.Type: GrantFiled: December 6, 2020Date of Patent: November 29, 2022Assignee: HYUNDAI TRANSYS INC.Inventor: Tae Hoon Kim
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Patent number: 11499473Abstract: A compressor for an intake section of an internal combustion engine of a motor vehicle includes an electric motor which has a stator and a rotor where the rotor is drivable by the stator and is rotatable about an axis of rotation relative to the stator. An impeller is drivable by the rotor to compress air which is flowable through the intake section and which is to be supplied to a combustion chamber of the internal combustion engine. The rotor is a brushless external rotor such that at least one length region of the stator is disposed in at least one length region of the rotor.Type: GrantFiled: October 24, 2019Date of Patent: November 15, 2022Assignee: Bayerische Motoren Werke AktiengesellschaftInventor: Achim Gordner
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Patent number: 11387703Abstract: A method for manufacturing a stator of a waterproof motor includes disposing a first assembly in a mold where the first assembly includes a coil unit wound around an iron core assembly, and filling the mold with a thermosetting plastic which forms a housing after curing. The housing houses the coil unit and the iron core assembly. A recess is formed at one end of the housing. The method further includes disposing a second assembly in the recess of the housing where the second assembly includes a circuit unit, and filling the recess of the housing with a waterproof glue which envelopes the circuit unit after curing. According to the above, the stator of the waterproof motor is formed.Type: GrantFiled: January 19, 2021Date of Patent: July 12, 2022Assignee: Sunonwealth Electric Machine Industry Co., Ltd.Inventors: Alex Horng, Guo-Hao Chen, Chi-Tsung Tsai
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Patent number: 11203356Abstract: A method for setting a driving mode of a vehicle which is driven by at least one electric machine, wherein several levels of a recuperation mode and a coasting mode are provided for the vehicle mode, wherein a first operating step or a second operating step is carried out with an operating element, wherein a level of the recuperation mode is raised upon a one-time carrying out of the first operating step with the operating element, wherein a level of the recuperation mode is set by one-time carrying out of the first operating step with the operating element which level is higher than a lowest level of the recuperation mode, wherein the coasting mode is directly set up when carrying out the second operating step with the operating element starting from the set, in particular higher level of the recuperation mode.Type: GrantFiled: March 29, 2019Date of Patent: December 21, 2021Assignee: AUDI AGInventor: Bernd Ritter
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Patent number: 11173915Abstract: A drive apparatus of a hybrid vehicle including a first and second rotors arranged movably in axial direction so as to separate from or approach each other, and a microprocessor. The microprocessor is configured to perform selecting a drive mode from among drive modes including a first mode in which the engine drives a planetary gear mechanism, a second mode in which the engine is stopped, and a third mode in which the engine is driven through the planetary gear mechanism, and controlling a first motor-generator and a clutch mechanism so that the first motor-generator generates regenerative energy when the drive mode is switched from the first mode to the second mode, and then so that the clutch mechanism is engaged and the first motor-generator generates drive torque when the drive mode is switched to the third mode.Type: GrantFiled: May 14, 2020Date of Patent: November 16, 2021Assignee: Honda Motor Co., Ltd.Inventor: Takahiro Kasahara
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Patent number: 11133732Abstract: A brushless winding field rotational electric machine positioned between a starting device and a case enclosing the starting device includes: a stator, which is held to the case, including an alternating-current coil configured to generate a rotation magnetic field by alternating current; a field core, which is held to the case, including a field coil to be excited by direct current; and a rotor disposed on an outer periphery of the starting device and rotatably held about a rotational axis relative to the stator and the field coil. The rotor includes a connection portion to be connected to a synchronized rotation member configured to rotate in synchronization with an engine along the rotational axis, on a facing surface to the synchronized rotation member.Type: GrantFiled: April 23, 2019Date of Patent: September 28, 2021Assignee: EXEDY CORPORATIONInventors: Hitoshi Katsura, Taichi Kitamura, Kimitaka Uemura
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Patent number: 10508654Abstract: An apparatus for cooling is disclosed. One apparatus includes a motor body and a shaft extending through the motor body and configured to rotate in response to operation of the motor body. The shaft includes a first through-hole extending axially between a first end of the shaft and a second end of the shaft. The first through-hole is configured to receive a fluid to cool the motor body.Type: GrantFiled: March 8, 2017Date of Patent: December 17, 2019Assignee: Lenovo (Beijing) LimitedInventors: Zhe Cheng Zhang, Ming Chang Zhuang
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Patent number: 10476418Abstract: A system includes a synchronous generator coupled to an excitation system. The excitation system may output an excitation signal to excite the synchronous generator to produce a voltage and a current at an output of the synchronous generator. During startup, when the synchronous generator is rotating at less than rated speed, non-rotating synchronous electric motors may be electrically coupled to the synchronous generator. A controller may direct the excitation system to output the excitation signal to generate, with the synchronous generator, a first magnitude of current flow, and the synchronous motor loads are non-rotational in response to receipt of the first magnitude of current flow. In addition, the controller may selectively direct output of a pulse of the excitation signal, when the synchronous generator is rotating at less than rated speed, to urge the non-rotating synchronous motor loads into rotational electrical alignment with the synchronous generator and each other.Type: GrantFiled: May 21, 2018Date of Patent: November 12, 2019Assignee: ROLLS-ROYCE NORTH AMERICAN TECHNOLOGIES INC.Inventors: Mark Jon Blackwelder, Paul M. Rancuret
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Patent number: 10443511Abstract: A power generating unit, control unit and modular power generating system. A power generating unit includes an engine-generator set including an engine that produces mechanical power and a generator mechanically coupled to the engine. The generator converts the mechanical power to electrical power provided to a DC link. The control unit includes at least one controller configured to control fuel flow to the engine based on a voltage of the DC link.Type: GrantFiled: February 21, 2018Date of Patent: October 15, 2019Assignee: Dynamo Micropower CorporationInventors: Jason How-Ring Ethier, Ivan Wang, German Lakov
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Patent number: 10393082Abstract: Systems and methods are disclosed of an engine driven power system that includes a permanent magnet generator coupled to the engine. An energy storage device is connected to the permanent magnet generator. A controller controls the energy storage device to provide power to the permanent magnet generator to start the engine.Type: GrantFiled: October 30, 2017Date of Patent: August 27, 2019Assignee: Illinois Tool Works Inc.Inventor: Jeffery R. Ihde
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Patent number: 10374503Abstract: When a first medium phase voltage command and a first minimum phase voltage command are close to each other in a first three-phase voltage command, then a first three-phase application voltage is calculated from the first three-phase voltage command by switching from a first calculation process, which corresponds to first two-phase modulation, to a second calculation process, and when a second medium phase voltage command and a second minimum phase voltage command are close to each other in a second three-phase voltage command, a second three-phase application voltage is calculated from the second three-phase voltage command by switching from a third calculation process, which corresponds to first two-phase modulation, to fourth calculation process.Type: GrantFiled: February 16, 2015Date of Patent: August 6, 2019Assignee: Mitsubishi Electric CorporationInventors: Tatsuya Mori, Akira Furukawa
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Patent number: 10243363Abstract: Systems and methods are provided, which provide for the de-centralization of the logic necessary to perform electrical optimization of any contained electrical system. The systems and methods de-centralize, or distribute, electrical optimization logic into intelligent devices which are locally connected to both the generation and loads, in such a way that control can be asserted over these resources. The inventive systems and methods require less infrastructure and communication backbone to IT/Data Center infrastructure than are typically required by previous systems and methods known in the art.Type: GrantFiled: March 17, 2016Date of Patent: March 26, 2019Assignee: Open Access Technology International, Inc.Inventors: Sasan Mokhtari, Khashayar Nodehi Fard Haghighi, Erik Alan Amundson, David Heim, Dean Eriksson, Anthony Charles Sorvari
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Patent number: 10063165Abstract: An electric motor is connected to a voltage source via a drive circuit and, between the drive circuit and the voltage source, the operating switch is arranged for the switching of the supply voltage (U) of the voltage source as the input voltage (UE) on the drive circuit. Following the switch-out of the electric motor, the input voltage (UE) on the drive circuit is monitored and a gradient of a rising voltage ramp (dU/dt) of the input voltage (UE) is determined. The gradient of the rising voltage ramp (dU/dt) of the input voltage (UE) thus determined is compared with a predefined limiting value and, in the event of an overshoot of the predefined limiting value, the operating switch is detected as closed, and the electric motor is restarted via the drive circuit.Type: GrantFiled: April 14, 2017Date of Patent: August 28, 2018Assignee: Andreas Stihl AG & Co. KGInventors: Kay-Steffen Gurr, Gernot Liebhard, Jens Kloeker, Jochen Siller, Heinrich Leufen
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Patent number: 9464537Abstract: Solutions for clutching turbine wheels are disclosed. In one embodiment, an apparatus includes: a turbine rotor shaft; a plurality of turbine wheels affixed to the turbine rotor shaft; an independent turbine wheel engagably attached to the turbine rotor shaft; and a clutch operably connected to the turbine rotor shaft, the clutch configured to couple and decouple the independent turbine wheel from the turbine rotor shaft.Type: GrantFiled: January 22, 2014Date of Patent: October 11, 2016Assignee: General Electric CompanyInventors: William Thomas Parry, Nestor Hernandez Sanchez, Michael Alan Davi
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Patent number: 9350280Abstract: A method for operating a power supply unit for an electrical system of a motor vehicle, the power supply unit having an electric generator having a stator having a stator winding and a rotor having a rotor winding, as well as a field current controller assigned to the rotor winding for selecting the setpoint of the current flowing through the rotor winding; the electric generator being set into rotation without a current being specified by the rotor winding, thereby generating a starting voltage; at least one component of the power supply unit or of the vehicle electrical system being energized by the starting voltage.Type: GrantFiled: November 6, 2012Date of Patent: May 24, 2016Assignee: ROBERT BOSCH GMBHInventors: Andreas Jacob, Sebastian Jansen, Marc Eschenhagen, Axel Reuter
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Patent number: 9321342Abstract: A modular electrically variable transmission includes at least one of a sun-shared module and a sun and ring-shared module assembled to form a two-module electrically variable transmission having a shiftable motor speed reducer subassembly and an electrically variable transmission subassembly. The sun-shared module includes a first motor-generator, an input, and primary and secondary planetary gear sets each having respective primary and secondary ring gears, carriers and associated pinion gears. The pinion gears are in meshing engagement with a single first shared sun gear that is non-rotatably coupled to the first motor-generator. The sun and ring-shared module includes a second motor-generator, a second input, a second shared sun gear and a shared ring gear, and primary and second secondary planetary gear sets. The secondary planetary gear set includes a secondary carrier supporting outer and inner pinion gears. The second shared sun gear is non-rotatably coupled to the second motor-generator.Type: GrantFiled: May 22, 2014Date of Patent: April 26, 2016Assignee: FCA US LLCInventors: Bradford Liu, Feisel F Weslati
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Patent number: 9077207Abstract: In a parallel running control apparatus for inverter generator A having first, second and third inverters adapted convert alternating current outputted from windings wound around an alternator into direct/alternating current by driving switching elements, and CPUs to control turning ON/OFF of the switching elements, it is configured so that the generator A runs in parallel with at least one inverter generator B, which is configured to be same as the inverter generator A, to output a three-phase alternating current, and one of the CPU determines that the generator B was stopped when at least one of phase differences between a phase of an output from the first inverter and phases of outputs from the second and third inverters becomes greater than or equal to a predetermined value.Type: GrantFiled: May 16, 2012Date of Patent: July 7, 2015Assignee: HONDA MOTOR CO., LTD.Inventors: Shoji Hashimoto, Yoichi Yamamura
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Patent number: 9035478Abstract: A constant frequency starter/generator for a turbine engine includes a first inverter/converter, a second inverter/converter, a DC link electrically connecting the first inverter/converter to the second inverter/converter, and an electric machine having a synchronous main machine, wherein the constant frequency starter/generator is operable in a start mode and a run mode.Type: GrantFiled: August 26, 2013Date of Patent: May 19, 2015Assignee: GE Aviation Systems, LLCInventors: Hao Huang, David Dimitri Karipides
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Publication number: 20150097372Abstract: A brushless, three phase wound field synchronous machine (WFSM) provides an electromechanical power transfer system wherein it may serve as both a starter and a generator. Power for the excitation system of the WFSM is provided by a three phase flux switching generator (FSG). The three phase FSG also provides position sensor functionality for the WFSM when the WFSM operates in the starter/motor mode.Type: ApplicationFiled: June 20, 2013Publication date: April 9, 2015Inventors: Dhaval Patel, David A. Fox, Jason A. Ohnemus, Albert L. Markunas
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Publication number: 20150054283Abstract: A constant frequency starter/generator for a turbine engine includes a first inverter/converter, a second inverter/converter, a DC link electrically connecting the first inverter/converter to the second inverter/converter, and an electric machine having a synchronous main machine, wherein the constant frequency starter/generator is operable in a start mode and a run mode.Type: ApplicationFiled: August 26, 2013Publication date: February 26, 2015Applicant: GE Aviation Systems LLCInventors: Hao Huang, David Dimitri Karipides
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Patent number: 8950372Abstract: A starter motor for engine has a flywheel fixed to a shaft of the engine. A support is fixed relative to the engine. A space is formed between the flywheel and the support and a driving device is installed in the space. The driving device includes a stator fixed to the support and a rotor fixed to the flywheel.Type: GrantFiled: October 20, 2011Date of Patent: February 10, 2015Assignee: Johnson Electric S.A.Inventors: Guo Ji Zhang, Jin Yun Gan, Li Sheng Liu, Yue Li
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Patent number: 8925402Abstract: An output shaft (14) of a starting device (1) is provided to equip a motor vehicle. This output shaft (14) comprises a mounting support (16), a driving element (17) on the mounting support (16) intended to transmit a rotation movement to a thermal engine, and a track (15) on the mounting support (16) intended to transmit a rotation movement to the mounting support (16), this track (15) being driven by a freewheel of a starter-head assembly of the starting device. The track (15) is attached and secured to the mounting support (16).Type: GrantFiled: August 13, 2008Date of Patent: January 6, 2015Assignee: Valeo Equipements Electriques MoteurInventor: Jean-Sebastien Metral
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Patent number: 8928166Abstract: An electric power generation system (EPGS) employs both a wild-source generator and a variable and/or constant frequency generator. The wild-source generator is coupled to receive mechanical power from a low-pressure spool on an aircraft engine and to generate in response a wild-source output for consumption by voltage and frequency-tolerant loads. The variable and/or constant frequency generator is coupled to receive mechanical power from a high-pressure spool on the aircraft engine and to generate in response a variable and/or constant frequency output for consumption by voltage and frequency-intolerant loads.Type: GrantFiled: August 31, 2011Date of Patent: January 6, 2015Assignee: Hamilton Sundstrand CorporationInventors: Mark J. Seger, Todd A. Spierling, David S. Behling, Craig R. LeGros, Brandon M. Grell
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Patent number: 8928293Abstract: An electrical machine includes a stator having a main armature winding, an exciter field winding, and a transformer primary winding. A rotor is operatively connected to rotate relative to the stator, wherein the rotor includes an exciter armature winding operatively connected to the exciter armature winding for field excitation therebetween, a main field winding operatively connected to the main armature winding for field excitation therebetween, and a transformer secondary winding operatively connected to the transformer primary winding to form a rotating transformer. A generator control unit is operatively connected to the main armature winding, exciter field winding, and transformer primary winding to control the main armature and exciter field windings based on excitation in the primary winding received from the transformer secondary winding.Type: GrantFiled: August 2, 2013Date of Patent: January 6, 2015Assignee: Hamilton Sundstrand CorporationInventors: Gregory I. Rozman, Jacek F. Gieras, Steven J. Moss
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Publication number: 20140360205Abstract: One embodiment of the present disclosure is a unique gas turbine engine. Another embodiment of the present disclosure is a unique machine. Other embodiments include apparatuses, systems, devices, hardware, methods, and combinations for gas turbine engines and electrical systems.Type: ApplicationFiled: December 19, 2013Publication date: December 11, 2014Applicants: Rolls-Royce Corporation, Rolls-Royce North American Technologies, Inc.Inventors: Mat French, John T. Alt, Mark J. Blackwelder
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Patent number: 8872467Abstract: A method and system for starting and operating an electrically driven load, e.g. a compressor or pump, by power supply from a mechanical driver, e.g. a turbine or combustion engine, whereby the load is mechanically connected to a first electrical machine, and the mechanical driver is mechanically connected to a second electrical machine. The first electrical machine is electrically interconnected to the second electrical machine at a standstill or when the first and or second machine have low speed. In an acceleration phase, the first electrical machine is accelerated by accelerating the second electrical machine with the mechanical driver. When the first electrical machine has reached a predefined rotational speed, the first machine is synchronized with a local electrical power network and connected it to that network.Type: GrantFiled: August 20, 2012Date of Patent: October 28, 2014Assignee: Aker Engineering & Technology ASInventors: Ole-Johan Bjerknes, Trygve Lund
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Publication number: 20140265331Abstract: An alternator-starter assembly for an internal combustion engine having a crankshaft and a drive member operatively connected to the crankshaft. The alternator-starter assembly includes an electric machine, a transmission assembly, and a controller. The electric machine includes a stator and a rotor that is configured for rotation relative to the stator. The transmission assembly includes a first drive shaft operatively connected to the rotor, a second drive shaft operatively connected to the drive member, and a gear assembly operatively connected to the first drive shaft and the second drive shaft. The controller is connected to the electric machine and is configured to operate the electric machine as a generator when the gear assembly is in a first gear configuration and to operate the electric machine as a motor when the gear assembly is in a second gear configuration.Type: ApplicationFiled: March 17, 2014Publication date: September 18, 2014Applicant: Remy Technologies LLCInventor: Alexander Creviston
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Patent number: 8598722Abstract: An electrical generator utilizing two internal combustion engine having an expanded range of power output is disclosed. A primary internal combustion engine is coupled to the magnet rotor assembly. The primary engine is operated solely in a lower power range. A secondary engine, coupled to a coil assembly is locked in place in such lower power range to make the coil assembly stationary. In a higher power range, that overlaps the lower power range, the secondary engine is unlocked and operated to rotate in a counter-rotating direction with respect to the first engine. The secondary engine can be started by operating the generator (consisting of the magnet rotor assembly and the coil assembly) as a motor by appropriate application of current.Type: GrantFiled: March 8, 2011Date of Patent: December 3, 2013Assignee: EcoMotors InternationalInventors: Peter Hofbauer, Adrian Nicolaie Tusinean, Tyler R. Garrard, Patrick James McCleer
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Publication number: 20130207395Abstract: An assembly for a gas turbine engine includes a S/G having a rotatable shaft, a main machine, a PMG, and an exciter wherein at least one of the main machine, PMG, and exciter includes a rotor mounted to the shaft and having multiple rotor poles, a stator having multiple stator poles and at least one of the rotor poles and stator poles being formed by a core with a post and wire wound about the post to form a winding, with the winding having at least one end turn, and a layer to increase cooling capabilities of a portion of at least one of the stator and the rotor.Type: ApplicationFiled: February 13, 2012Publication date: August 15, 2013Applicant: GE AVIATION SYSTEMS LLCInventors: Hao Huang, Xiaochuan Jia, Paul James Wirsch, JR.
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Publication number: 20130193687Abstract: A rotor device of an integrated starter-generator motor and a rotor working system are disclosed in the present invention. The rotor device is a monobloc casted and then machined, inseparable one-piece structure. The rotor device takes the shape of a straw hat and is provided with an external side surface of a hat top being surface (11), an external side surface of a hat brim being surface (13), an inner side surface of the hat brim being surface (12) and a surface (14) which connects the surface (11) with the surface (13). The surface (11) of the rotor device is provided with multiple through holes (1) used for fixing with a crankshaft (82). The surface (12) of the rotor device is provided with multiple threaded holes (2) used for connecting with a clutch. The threaded holes (2) pass through the surface (13) corresponding to the surface (12).Type: ApplicationFiled: November 16, 2010Publication date: August 1, 2013Applicant: Jing-Jin Electric Techologies (Beijing) Co., Ltd.Inventors: Ping Yu, Zhenjun Zhang, Wal Cai
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Publication number: 20130181452Abstract: An arrangement and method for driving a turbomachine having a rotor is provided. The arrangement includes an input shaft rotationally coupled to the rotor. A motor generator device has a motor mode of operation and a generator mode of operation. A differential gear device having a first portion rotationally coupled to the input shaft and a second portion rotationally coupled to the motor generator device. A hydraulic assembly is rotationally coupled between the differential gear and the input shaft. The hydraulic assembly has a plurality of pistons and a pair of wobbler plates. A controller is operably coupled to the input shaft, the motor generator device and the hydraulic assembly, wherein the controller includes a processor that is responsive to executable instructions when executed on the processor for moving the pair of wobbler plates to a first position during a motor mode of operation.Type: ApplicationFiled: January 13, 2012Publication date: July 18, 2013Applicant: HAMILTON SUNDSTRAND CORPORATIONInventors: Eric A. Brust, David S. Behling, Glenn C. Lemmers, JR.
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Patent number: 8461704Abstract: A gas turbine engine arrangement comprises a core engine, a power turbine and a propulsor. The core engine comprises at least one compressor and at least one turbine arranged to drive the at least one compressor and the core engine is arranged in a casing. The power turbine is positioned downstream of the at least one turbine and the power turbine is arranged to drive the propulsor. An electrical machine is arranged upstream of the at least one compressor. The electrical machine comprises a stator and a rotor and the electrical machine comprises a motor/generator. A first clutch selectively connects the rotor of the electrical machine to the power turbine and a second clutch selectively connects the rotor of the electrical machine to the at least one compressor of the core engine.Type: GrantFiled: October 15, 2012Date of Patent: June 11, 2013Assignee: Rolls-Royce PLCInventors: Adam John McLoughlin, Stephen John Mountain
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Publication number: 20130119664Abstract: The present invention relates to an electric power supply circuit (1) for a turbojet engine nacelle including at least one electric generator (2) mechanically connected to the shaft of a turbojet engine, said generator being capable of directly supplying electric power to a first electric power device other than a simple monitoring or supervising unit, characterized in that said generator is capable of directly supplying electric power to at least one second electric power device other than a monitoring or supervising unit, as well as to a nacelle including such an electric circuit.Type: ApplicationFiled: June 29, 2010Publication date: May 16, 2013Applicant: AIRCELLEInventors: David Pereira, Hakim Maalioune, Vincent Le Coq
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Publication number: 20130076035Abstract: An exemplary turbomachine starter assembly includes a motor-generator that selectively operates in a motor mode or a generator mode. The motor-generator provides a rotational input to a turbomachine when operating in the motor mode. The motor-generator generates a supply of electrical power when operating in the generator mode. The supply of electrical power is used to power accessories of the turbomachine.Type: ApplicationFiled: September 27, 2011Publication date: March 28, 2013Inventors: Andreas C. Koenig, Adam M. Finney