Matches 1 - 50 out of 83 1 2 >


Match Document Document Title
US20120107086 MOTOR ASSISTED FINE PITCH STARTUP RAM AIR TURBINE  
A startup assistance apparatus for a fine pitch Ram Air Turbine (RAT) is provided and includes a generator to provide motive power to the RAT when operating in a first mode and to generate...
US20150130186 CONTROL AND POWER SUPPLY SYSTEM FOR HELICOPTER TURBINE ENGINES  
An electrical control and power supply system for at least one helicopter motor/generator, the system including a first DC/AC converter selectively delivering AC electrical power to the at least...
US20130249213 GAS TURBINE START WITH FREQUENCY CONVERTOR  
The invention relates to a method for the start of a power plant installation (10), which comprises a gas turbine (2), a generator (18) coupled to the gas turbine (2), and a frequency converter...
US20100213709 GENERATOR-STEAM TURBINE-TURBOCOMPRESSOR STRING AND METHOD FOR OPERATING THE SAME  
A generator-steam turbine-turbocompressor-string is provided. The generator-stream turbine-turbocompressor-string includes a generator with variable frequency, a steam turbine and a...
US20120292902 INVERTER GENERATOR  
In an inverter generator having a winding wound around a generator unit driven by an engine, a converter connected to the winding and adapted to convert an alternating current outputted from the...
US20150042155 DEVICE FOR SUPPLYING ELECTRICAL POWER TO AN AIRCRAFT ON THE GROUND  
A device for supplying electrical power to an aircraft on the ground, including two electric generators driven by an auxiliary power unit. The first generator is connected by a...
US20100109325 Method and device for power regulation of an underwater power plant  
The invention concerns a method for the operation of an underwater power plant with a water turbine to take up kinetic energy from a surrounding flow; andan electrical generator coupled directly...
US20110260452 POWER SUPPLY SOURCE SWITCHING APPARATUS FOR HYBRID ENGINE GENERATOR  
Usability is improved and noise and fuel consumption are lowered by preventing stopping of a generator output. A hybrid power generator 1 includes a battery 4, an alternator 3, a rectifier unit...
US20150097372 THREE PHASE FLUX SWITCHING GENERATOR IN A THREE STAGE WOUND FIELD SYNCHRONOUS MACHINE  
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...
US20130033038 STARTING/GENERATING SYSTEM WITH MULTI-FUNCTIONAL CIRCUIT BREAKER  
A starting/generating system includes a rotor portion and a stator portion. The stator portion is connected to a DC power source during starting operations and to a DC load during generating...
US20100001524 Electric rotary starter for an engine of a radio control model  
An electric rotary starter for an engine of a radio control model includes a motor mounted therein. A drive shaft is electrified and longitudinally connected to the motor and rotated by the motor....
US20130204506 ENGINE SYSTEMS WITH EFFICIENT START CONTROL LOGIC  
An engine system for starting a gas turbine engine is provided. The system includes a starter generator coupled to the gas turbine engine and configured to provide torque to the gas turbine engine...
US20120261916 POWER-GENERATION MOTOR CONTROL SYSTEM  
A power-generation motor control system is a control system that controls a power-generation motor provided with an armature and a magnetic-field winding, and is characterized in that when the...
US20120169114 SYSTEM AND METHODS FOR STARTING A PRIME MOVER OF A POWER SYSTEM  
A power system includes a prime mover drivingly connected to an electric motor/generator. The power system may also include a first electrical energy storage device and a second electrical energy...
US20140361536 CHARGING IN MULTIPLE VOLTAGE START/STOP BAS SYSTEM  
An alternator-starter system and method is disclosed. A method of operating an alternator-starter having an inverter/rectifier for starting an engine and charging a plurality of batteries includes...
US20150219055 SYSTEMS AND METHODS FOR INITIALIZING A GENERATOR  
A method for initializing a generator may include sending a field reference voltage to an exciter that may provide a direct current (DC) current and a DC voltage to a rotor of a generator based on...
US20150167615 Motor Control Device  
If the control of a motor becomes impossible, the motor appropriately stops, and drive wheels are driven by an engine to enable retraction travel. A motor/generator 4 is used to drive drive wheels...
US20130088019 APPARATUS FOR GENERATING POWER FROM A TURBINE ENGINE  
An apparatus for powering an aircraft by generating power from a pressure spool of a turbine engine. AC power can be extracted from the turbine engine by a generator having an integrated...
US20120007360 STARTING METHOD FOR BRUSHLESS WOUND FIELD STARTER-GENERATOR WITHOUT ROTATING DIODE RECTIFIER  
A starting system may comprise a wound-field electric machine with a main generator and an exciter generator. The main generator and the exciter generator may each have stator windings and rotor...
US20110080000 SYNCHRONOUS ELECTRICAL MACHINE  
A synchronous electrical machine comprises a plurality of phases and detecting means arranged to detect an open-circuit fault in at least one of the phases of the synchronous electrical machine....
US20090140521 GENERATOR POWER-BASED COLD START STRATEGY  
The method of the invention controls engine speed during engine starting for a hybrid electric vehicle that includes a battery, an engine and a generator, acting as a motor, whereby generator...
US20100295301 AIRCRAFT ENGINE STARTING/GENERATING SYSTEM AND METHOD OF CONTROL  
A starting and generating system for use with an aircraft engine includes a starter/generator and an inverter/converter/controller (ICC) coupled to the starter/generator. The starter/generator is...
US20100308582 STARTING/GENERATING SYSTEM WITH MULTI-FUNCTIONAL CIRCUIT BREAKER  
A pre-charge circuit limits in-rush currents on a direct current (DC) link that includes a first DC link bus and a second DC link bus. The pre-charge circuit includes a switching device connected...
US20130194101 SYSTEM AND METHOD FOR HEALTH MONITORING OF POWER CABLES  
A shield of a power cable diverts leakage current to ground. During normal operation, the leakage current is steady. An increase in leakage current can lead to a failure mode of the power cable....
US20140103650 DUAL-DC BUS STARTER/GENERATOR  
A system includes a starter/generator that receives AC power in a start mode, and generates AC power in a generate mode; and an inverter/converter circuit that converts the generated AC power from...
US20100308581 POSITION-CONTROLLED START FROM THE AC LINE USING A SYNCHRONOUS MACHINE  
A synchronous electric machine operates as a starter-generator for an aircraft. When operating in a starting mode, a main stator of the machine is supplied with electrical power at a constant...
US20110114049 FOUR STROKE SINGLE CYLINDER COMBUSTION ENGINE STARTING SYSTEM  
A four stroke single cylinder combustion engine starting system with an electrical machine is operable as both a generator and a motor. The starting system has a single cylinder four stroke...
US20100295300 METHOD FOR CONTROLLING A REVERSIBLE ELECTRICAL MACHINE COUPLED TO A HEAT ENGINE, ENGINE SUITABLE FOR CARRYING OUT THE METHOD, AND USE THEREOF  
The invention relates to a method for controlling a reversible electrical machine (14) coupled to a heat engine (13). The electrical machine comprises a field winding (18) which is fed by an...
US20120211981 TURBINE ENGINE STARTER/GENERATOR, AND METHOD FOR THE CONTROL THEREOF  
A turbine engine starter-generator including a main electrical machine including a stator and rotor with a wound rotor inducer and damper bars forming a cage, and an exciter including a stator...
US20110062709 CIRCUIT AND METHOD FOR REDUCING A VOLTAGE BEING DEVELOPED ACROSS A FIELD WINDING OF A SYNCHRONOUS MACHINE  
In an electrical power system of a diesel powered system having at least one diesel-fueled power generation unit, the electrical power system configurable in a starting mode for cranking the...
US20130038057 GAS TURBINE ENGINE APPARATUS  
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...
US20100013223 HYBRID ENGINE INSTALLATION AND A METHOD OF CONTROLLING SUCH AN ENGINE INSTALLATION  
A hybrid engine installation (200) includes drive element (204) suitable for driving a mechanical element (BTP, BTA) in rotation. In addition, the hybrid engine installation is remarkable in that...
US20120098261 Systems and Methods Involving Electrical Start and Power Generation  
A power generation system includes a prime mover, a generator mechanically connected to the prime mover, the generator including a field winding portion and an armature winding portion, a direct...
US20100283242 High Voltage Start of an Engine from a Low Voltage Battery  
Method and system are disclosed for starting a high voltage engine using a starter permanent magnet motor. The starter motor is powered using a DC power source remote from the starter motor. A...
US20120032441 CRANK-WEB MOUNTED LINEARLY SEGMENTED STARTER GENERATOR SYSTEM  
Featured is a starter/generator to start a reciprocating engine or generate electrical energy using the engine. The starter/generator includes a plurality of magnetic elements that establish a...
US20100283243 METHOD FOR CONTROLLING A SELF-PILOTED ALTERNATOR-STARTER, INCLUDING A SHORTENED PREFULX STEP  
A method for controlling a self-piloted alternator-starter for starting or restarting the thermal engine of an automobile. The alternator-starter includes a rotor rotating in a stator, and a belt...
US20090091132 STARTER/GENERATOR SYSTEM WITH CONTROL TO ADDRESS A VOLTAGE RISE  
A control circuit for a generator has a control function that monitors the voltage across a bus capacitor. The circuit delivers excess voltage back to associated stator windings if an unduly high...
US20100100300 Powerplant and related control system and method  
A hydrogen fueled powerplant including an internal combustion engine that drives a motor-generator, and has a two-stage turbocharger, for an aircraft. A control system controls the operation of...
US20130099493 CONTROL APPARATUS FOR MOTOR-GENERATOR  
A control apparatus for a motor-generator includes a stator including multi-phase coils, a rotor, a multi-phase inverter one arm of which includes a switch element and a free-wheeling element, and...
US20130001944 STARTING METHOD/APPARATUS FOR SERIES ELECTRIC DRIVE  
An improved system and method for starting an engine of an electric drive machine is disclosed. The method includes supplying electric current from a first energy storage device to inductive...
US20140265327 Systems and Methods for Variable Speed Operation of Combustion Engines  
Certain embodiments of the disclosure may include systems and methods for variable speed operation of combustion engines. According to an example embodiment of the disclosure, a method is provided...
US20110227340 ELECTRICAL MACHINES WITH INTEGRATED POWER AND CONTROL AND INCLUDING A CURRENT SOURCE INVERTER  
A machine has a housing that includes a plurality of stator coils to be positioned adjacent to a rotor. A switching network includes a plurality of transistors and diodes connected to the coils. A...
US20140132002 VEHICLE POWER SOURCE DEVICE  
A vehicle power source device includes a battery, a charging circuit, a capacitor, a switch, a voltage detection circuit, a current detection circuit, a control circuit, and a recording unit. The...
US20100320954 ROTATIONAL VELOCITY MEASUREMENT OF A ROTOR  
A system is provided for measuring the rotational velocity of the rotor of an electric motor or generator having (i) a stator with a plurality of circumferentially spaced pole pieces, each pole...
US20140239637 AUTOMATIC VEHICLE STOP RESTART SYSTEM  
An electrical system for vehicles that connects multiple batteries in parallel during normal operation but isolates the cranking battery and the starter system from the other batteries and their...
US20150226171 APPARATUS AND METHOD FOR STARTING AN ENGINE  
An apparatus for starting an engine of a mild hybrid vehicle is disclosed having low and high voltage starting devices and controlled by an electronic controller. The electronic controller is...
US20150258900 CONTROL DEVICE FOR CONTROLLING CONVERTER  
In a control device, a control unit controls at least one switching element of a converter to increase a voltage supplied from a battery, thus outputting the increased voltage to a rotating...
US20080315583 Hybrid Propulsion System For a Watercraft  
A propulsion system for a watercraft is described, having a diesel engine (4), a propeller (2), at least one auxiliary generator set (12), a generator (6) and a drive unit for at least one...
US20130140816 POWER SUPPLY SYSTEM FOR MOTOR VEHICLE  
A power supply system for a motor vehicle is provided with: a generator that includes a rotor having a field coil and a stator having an armature coil; a rectifier that rectifies AC power...
US20110227341 METHOD AND DEVICE FOR MONITORING THE START TIME OF A HEAT ENGINE OF A VEHICLE  
A method and device for controlling the starting time of a vehicle mounted thermal engine coupled mechanically to a polyphase rotary electrical machine with an inductor. The electrical machine...

Matches 1 - 50 out of 83 1 2 >