Matches 1 - 49 out of 49
Match Document Document Title
7602130 Apparatus for self-generating a driving force to rotate a shaft without external power after initial activation  
An apparatus for self-generating a driving force employs an electromotive force generated on a coil by electromagnetic induction, in combination with a mechanical driving device to drive a rotating...
7528564 Electrical machine and method for adjusting an axial spacing of the electrical machine  
An electrical machine including at least one sensor, a transducer wheel at which the sensor axially picks up a signal, an end face of the sensor being adjacent to an annular face on one face end of...
7425807 Transient energy systems and methods for use of the same  
This disclosure relates to transient energy systems for supplying power to a load substantially instantaneously on demand. Transient energy systems may include a flywheel coupled the rotor of an...
7378808 Electric drive system having DC bus voltage control  
An electric drive system has a power source and a generator operatively connected to the power source. The generator is configured to produce a power output. The electric drive system also has at...
7240583 Dual function, highly damped, structurally and thermally compliant auxiliary bearing assembly  
An auxiliary bearing assembly for selectively engaging a shaft, preferably in an energy storage flywheel system, is configured to include a vibration damping seal, and an axial preload spring. The...
7105972 Controller and magnetically driven wheel for use in a radial/rotary propulsion system  
The radial/rotary propulsion system of the present invention features a flywheel having concentric rings of permanent magnets attached to one or both sides or embedded into the flywheel. These...
RE39205 Power output apparatus and method of controlling the same  
While a ring gear shaft 126 linked with a drive shaft rotates, a power output apparatus 110 applies a torque to a first motor MG 1 attached to a sun gear shaft 125, thereby abruptly...
6771035 Method and device for determining the rotor position of an electric motor with several motor strings  
The specification describes a method and a detection module for determining the rotor position of an electromotor having a plurality of motor phase windings, in which, for determining the rotor...
6486627 Flywheel uninterruptible power source  
A flywheel uninterruptible power source has a charging system that uses a high frequency pulse width modulated inverter inside the motor drive with a very low frequency, line commutated converter...
6369532 Control system for an electric motor having an integral flywheel rotor  
A control system for an electric motor having an integral flywheel rotor. The motor includes a stator mounted co-axially with the engine crankshaft and a rotor surrounding the stator. A sensor is...
6294886 Supply system for an electric traction vehicle  
Supply system for an electric traction vehicle equipped with electric traction motors (M1 to M4) supplied by a traction system and pantograph means (2) for connecting the traction system (1) to a...
6204572 Power supply for providing instantaneous energy during electric utility outage  
A power supply system and method provides for smooth transitions between a utility power, transitory instantaneous power, and backup power in the event of a utility power failure of a utility...
6097164 On board power regeneration system for electrically operated vehicles  
An on-board electrical powered regeneration system for vehicles propelled by an electric traction motor and having an electrical storage cell bank composed of a rotatable flywheel operatively...
5932935 Energy storage flywheel emergency power source and methods  
A flywheel energy conversion device provides highly efficient conversion between kinetic and electrical energy. The flywheel produces increased output by providing armature coils in an air gap...
5925993 Power control architecture for a hybrid power source  
A hybrid powertrain assembly includes a voltage bus which is operable using a predetermined voltage level within a predetermined voltage range, a generator operatively connected to the voltage bus...
5839861 Gear-cutting machine with emergency power supply  
A gear-cutting machine contains one driving motor (28) with a corresponding actuator (26a, 26c . . . ) for each of various adjusting axes (B, C, X, Z . . . ). The actuators are supplied from a...
5821651 Flywheel controller  
A flywheel controller for commutating a stator of a flywheel is disclosed wherein the flywheel controller includes a sensing unit to sense the position of a rotor and for creating a rotational...
5767637 Controller for turboal ternator  
A speed controller for a generator having a rotor includes a speed control input port for receiving a speed command signal, a proportional gain stage electrically connected to said speed control...
5767591 Method and apparatus for providing startup power to a genset-backed uninterruptible power supply  
An uninterruptible power supply provides improved reliability by supplying temporary standby power to a critical load and startup power to a backup power source from a single energy storage system....
5757151 DC pump drive module  
A hybrid vehicle utilizes a power unit to store and convert power between a turbine alternator, flywheel and traction motor. The power unit includes a water cooled heater exchanger for cooling...
5646458 Uninterruptible power system with a flywheel-driven source of standby power  
An UPS (uninterruptible power system) includes an UPS power conditioning unit that provides conditioned AC power to a critical load. The UPS power conditioning unit includes a variable speed drive...
5550444 Device and process for the reversible storage of electric energy by its reversible conversion to kinetic energy  
In the device, an electric motor is designed as a brushless, electronically commutated pancake motor (201) with permanent magnets arranged on the rotor and coreless windings arranged on the stator....
5533583 Non-trackbound vehicle with an electrodynamic converter and a throttle  
A passenger automobile or truck contains a unit which is formed by an internal combustion engine and a generator and which powers electric motors coupled with driving wheels of the vehicle via an...
5345154 Electric continuously variable transmission and controls for operation of a heat engine in a closed-loop power-control mode  
A heat engine operates an alternator that supplies electrical power to an electric continuously variable transmission for driving at least one ac motor through a differential to multiple wheels or...
5104062 System for operating aircraft flight controls  
An aircraft flight control is operated by an electric motor by way of a flywheel and a stepless variable speed ratio device. A device, for example an over-running clutch, is provided so that...
5034622 Power supply interface apparatus for communication facilities at a power station  
A power supply board for connecting dry communication lines from a remote station to the electronic equipment at a power station and includes a brushless PM motor mounted in a motor section of the...
4937507 Regenerative control system for motor generator  
A generator driving apparatus is provided with a thyristor driving device for driving a motor-generator, and the thyristor driving device always controls the driving of the motor-generator...
4920303 Device for rotary-driving a centrifuge arm and method for power-feeding said device  
The power supply unit (20) includes an average voltage multiphase supply network (21) with power less than the theoretical power required to feed the high-power electric motor (5) for...
4735382 Space craft cellular energy generating and storage device  
A space craft cellular energy generating and storage device for generating electrical power in space and storing the power for extended periods of time. The space craft generating and storage...
4723099 Drive for a switch  
A drive for a high-voltage isolating switch includes a shaft which acts on a moving contact of the isolating switch, a flywheel which is connected via a coupling to the shaft, a drive motor for...
4657117 Elevator power supply and drive system  
An improved power supply and drive system for an elevator is disclosed. An electric motor is connected to an electrical power source for a building. The electric motor is mechanically connected...
4649287 Bidirectional control system for energy flow in solar powered flywheel  
An energy storage system for a spacecraft is provided which employs a solar powered flywheel arrangement including a motor-generator which, in different operating modes, drives the flywheel and is...
4631456 Inertial energy storage device and synchronous rotary electrical machine for use therein  
An inertial energy storage device including a synchronous rotary electrical machine for bidirectional conversion between mechanical and electrical energy including: a stator having two axially...
4629947 Electric vehicle drive system  
An electric vehicle power system has a battery system to drive an electric drive motor. A flywheel is provided to supply energy to drive a generator for supplying electric current during peak loads...
4612494 Flywheel energy storage system  
A flywheel energy storage system comprises a dynamoelectric machine, a flywheel connected to the dynamoelectric machine for rotation therewith, an auxiliary machine for performing operational tasks...
4498015 Flywheel device for a moving vehicle  
An energy storage device comprising three flywheels mounted mutually perpendicular on said shafts in three dimensions within a rigid enclosure. The shafts are interconnected within the enclosure...
4495451 Inertial energy interchange system with energy makeup by combustion engine on demand  
Vehicle propulsion system or the like characterized by energy interchange between a plurality of flywheel assemblies each including a driving/driven induction motor/generator, and a plurality of...
4442385 Variable frequency drive for a motor-generator/alternator set  
A variable frequency drive for a motor-generator/alternator set which is used to supply electrical power to computer or data processing equipment. Power failures in commercially supplied power...
4358719 Peak power limiter system for excavator  
A motor drive system for a mining shovel includes three a.c. motors which are driven by associated inverter circuits that receive power from a common d.c. bus. The d.c. bus connects to the a.c....
4321478 Auxiliary power supply with kinetic energy storage  
Alternating current is supplied to an auxiliary load on a transit car from a power supply comprised of a DC-energized inverter and a synchronous machine coupled to the inverter. The inverter...
4179729 Rotary electric machine and power conversion system using same  
A power conversion system for converting between electrical power at different frequencies, including a rotary electrical machine including a rotor, a stator, first and second independently...
3979650 Energy conversion apparatus for supplying variable voltage direct current power to an electrically propelled vehicle  
A synchronous machine, operable as both a motor and a generator, is mounted on an electrically powered vehicle, such as a mine shuttle car, and includes a plurality of conductors having connections...
3851232 ELECTRIC VEHICLE PROPULSION SYSTEM  
A plurality of electrical devices are coupled by circuit means, including switching contactors, in series in one switching mode, and in parallel in another switching mode for current flow sense in...
3757181 APPARATUS FOR DRIVING AND STOPPING A MACHINE, PARTICULARLY A SEWING MACHINE  
An apparatus for driving and stopping a machine, particularly a sewing machine, comprising, on a shaft carrying a pulley linked directly to the machine and rotatably mounted in a housing, a clutch...
3593078 STARTING AND OPERATING CONTROL FOR AN AC MOTOR POWERED BY A DC POWER SUPPLY  
An AC Motor Control, wherein the AC motor is powered by a DC power supply through a DC to AC converter circuit, and wherein the control has an AC current sensor for producing a current signal...
3541409 SWITCHING ARRANGEMENT FOR FLYWHEEL ENERGIZED ELECTRIC GENERATING UNIT  
3317765 Combination vehicle motor and electrical power unit  
3305762 Method of control of electric power  
2978070 Control system for elevator motors  
Matches 1 - 49 out of 49