Matches 251 - 300 out of 430 < 1 2 3 4 5 6 7 8 9 >
Match Document Document Title
4298812 Gas cooled rotor for an electric machine  
The invention relates to a gas-cooled rotor for an electric machine. At each axially separated rotor slot, cooling ducts are supplied with cold gas by the duct of a lower cavity and form a parallel...
4289986 Coolant connecting head for an electric machine with a superconducting rotor winding  
A coolant connecting head for an electric machine which contains a rotor with a superconducting winding, the head including a device for feeding a coolant from a non-rotating coolant line part into...
4289985 Electrical machine with cryogenic cooling  
An electrical machine with cryogenic cooling has a hollow rotor filled with a coolant and comprising a superconducting winding provided with at least two supply leads being cooled. One of the...
4286182 Laminated rotor for a dynamoelectric machine and method of making same  
A laminated rotor for a dynamoelectric machine is formed by stacking a plurality of sets of punched laminae on one another to define axial coolant passageways, radial vents and coolant ducts and...
4286183 Dynamoelectric machine  
Forming the blower assemblies on a large squirrel cage induction motor of non-metallic steel reduces short circuiting ring temperature hot spots and temperature differentials experienced during...
4282450 Dynamoelectric machine with cryostable field winding  
Cryostability is achieved by a superconductive rotor of a dynamoelectric machine constructed in accordance with the invention. The superconductive rotor comprises: a rotor shaft; a support rim; a...
4275565 Transfer device for a cryogenic medium  
A device for the transfer of a cryogenic medium between a fixed and a rotating conducting tube with a sealing device having a corotating sealing element to seal off an annular space between a fixed...
4267475 Current supply arrangement for electric machine rotor winding  
Disclosed is a current supply arrangement for an electric machine rotor winding, comprising a slip ring made of a high-strength steel, fitted onto the rotor shaft with an electrically insulating...
4241269 Directly liquid cooled rotor for electrical machine  
A rotor for electrical machine comprises poles and a winding made of hollow conductors forming hydraulic loops connected in parallel to a cooling liquid supply system, in each hydraulic loop a...
4219746 Bi-directional axial flow blower for pump-storage hydrogenerators  
Axial flow blowers for cooling the rotatable field winding on synchronous dynamoelectric machines. An axial flow blower is provided on each axial end of the dynamoelectric machine. Each blower...
4210834 Device for cooling and electrically connecting field-current lines to water-cooled turbogenerator rotors  
A water-cooled turbogenerator rotor mounted on a rotor shaft and having water-cooled end turn leads surrounded by a rotor end-bell and further having radial current-contact pins contacting ends of...
4207745 Device for helium transfer between rotating and non-rotating members  
A device for transferring helium between rotating and non-rotating members includes first and second transfer reeds and a cylindrical sleeve. The cylindrical sleeve is provided between the first...
4206378 System for liquidly cooling dynamoelectric machine rotor coils  
A system for liquidly cooling rotor coils whose end turns are embedded in the rotor. A distribution chamber and a discharge chamber are arranged on opposite axial ends of the rotor and constitute...
4203044 Double-walled rotor for an oil-cooled electrical machine  
An interchangeable tube is disposed and retained within a hollow rotor shaft of an electrical machine to form an axially extending cavity between the tube and the hollow rotor shaft. Oil flows into...
4182137 Liquid cooling system for hermetically sealed electric motor  
A cooling system having an electric drive motor utilizes a portion of the sub-cooled liquid which would otherwise be passed from the condenser through an expansion device to the evaporator to cool...
4164672 Cooling and insulating system for extra high voltage electrical machine with a spiral winding  
A rotating electrical machine having a winding configuration and insulating system permitting very high voltage operation. The phase coils of the armature winding are arrayed in outwardly...
4155019 Coupling assembly for mutually coupling a generator rotor having a superconductive exciter winding and a shaft carrying exciter current leads  
An assembly is provided for mutually coupling a generator rotor which has a superconductive exciter winding, and a shaft, which carries exciter current leads. Disconnectible electrical, hydraulic...
4152610 Turbogenerator having dual cooling  
A high-power, high-speed synchronous rotary electric machine having an airgap defined therein, includes a cylindrical rotor havng a shaft, slots defined in the rotor for receiving a rotor winding,...
4152611 Rotor for electrical device  
This invention relates to a new and useful rotor assembly for an electrical device, such as a turbo-generator, and comprising; a core of magnetic material with at least one winding of a hollow...
4146809 Sleeve for a rotor of a dynamoelectric machine  
A sleeve is utilized to retain the conductors disposed longitudinally on the outer surface of a rotor in a dynamoelectric machine.
4143290 Supporting device for rotor winding in rotary electric machine  
A rotor for use in a rotary electric machine, which rotor includes a rotary shaft, a core on the shaft, windings wound around the core and having axial end portions thereof protruded from the axial...
4139789 Sleeve supported two pole rotor assembly  
A rotary electrical machine includes a two pole rotor carrying a winding. The rotor is contained within a thin sleeve of non-magnetic material which supports the rotor within bearings in the machine.
4137472 Cooling system for electric motors  
The present invention comprises a rotor for an electric motor which rotor is provided with cooling arrangement in the form of a heat pipe extending axially within the rotor. The heat pipe has an...
4119872 Dynamo electric machine  
A dynamo electric machine wherein a hollow rotor shaft carries cooling oil, there being outlet means in the wall of the hollow shaft whereby the oil is discharged from the shaft onto the windings...
4114059 Grooved visco seal for stationary discharge chamber of water-cooled turbine generator  
A discharge chamber seal arrangement for a water cooled turbine generator rotor. The discharge chamber seal arrangement comprises a gland seal operable during high speed operation of the rotor and...
4114058 Seal arrangement for a discharge chamber for water cooled turbine generator rotor  
A discharge chamber seal arrangement for a water cooled turbine generator rotor. The discharge chamber seal arrangement comprises a gland seal operable during high speed operation of the rotor and...
4086033 Oil pump for motor compressor  
In a hermetically-sealed motor compressor having a vertically oriented crankshaft into which oil is centrifugally pumped from a sump, the oil pumping tube extending into the sump is cast as an...
4066921 Exciter-current lead-through bolt interconnecting rotor shaft-enclosed lead-in conductor bar and terminal conductor bar leading to rotor winding  
An exciter current lead-through bolt which is passed through a radial bore in the rotor shaft of a dynamo-electric machine, especially a turbo-generator, and screwed into an exciter-current lead-in...
4048528 Starting motor for large inertia load  
A large starting motor is provided, especially for reversible, pumped storage water wheel generator-motor units, having a rotor member which comprises a relatively thin ferromagnetic rim and a...
4035679 Coolant transfer tube for dynamoelectric machines  
In a dynamoelectric machine having a source of coolant for applying coolant under pressure to the machine housing, a coolant transfer tube is provided for transferring the coolant from the machine...
4018059 Cryogenic fluid transfer joint employing gaseous seals  
Cryogenic liquid coolant is transferred from a stationary liquefier through a bayonet to the rotor of a superconducting generator using a cryogenic fluid transfer joint cantilevered on the...
4013908 Cooling system for a superconductive exciter winding  
Cooling system for a superconductive exciter winding in a turbogenerator rotor, the exciter winding having winding coils formed of a multiplicity of individual windings that are received in slots...
4010394 Support for an end winding of a rotor of a dynamo-electric machine  
A rotor of a dynamo-electric machine having the conductors forming an end-winding supported by an annular support arrangement interposed between an overhang region of the rotor body and the...
3997806 Rotor of flat-type motor  
A rotor for a flat-type motor is constructed to include a flat armature, which comprises a flat armature winding in the form of a disk, and an insulating resinous body in which the armature winding...
3997803 Rotor member for dynamoelectric machines with longitudinal passages of decreasing area communicating with radial core vents  
A rotor member is provided for dynamoelectric machines having a laminated core with radial ventilating ducts extending through the core and passages for ventilating air extending longitudinally of...
3995180 Generator rotor outlets for increased ventilation  
In a gas-cooled generator or other dynamoelectric machine, the windings mounted in slots in the rotor are provided with a plurality of passages for the flow of cooling gas from the gap between the...
3991588 Cryogenic fluid transfer joint employing a stepped bayonet relative-motion gap  
Cryogenic liquid coolant is transferred from a stationary liquefier through a bayonet to a conduit rotating with the rotor of a superconducting generator, using a cryogenic fluid transfer joint...
3991587 Method of supplying cryogenic fluid through a transfer joint employing a stepped bayonet relative-motion gap  
Cryogenic liquid coolant is transferred from a stationary liquefier through a bayonet to a conduit rotating with the rotor of a superconducting generator, using a cryogenic fluid transfer joint...
3983427 Superconducting winding with grooved spacing elements  
A spacing element is disposed between adjacent conductor layers of a coil to permit passage of a cooling fluid therethrough. The spacing element comprises rib portions which engage and space apart...
3968389 Dynamoelectric machine with water-cooled rotor  
In a large turbine generator unit having a liquid-cooled rotor, the liquid coolant is introduced into the rotor through the central bores of the exciter shaft and the generator shaft. This requires...
3962594 Rotor winding of electric machines  
A rotor winding of an electric machine, the coil ends of which are provided with coolant conduits for supplying thereto a cooling liquid. The coolant conduits have radial and axial portions the...
3955111 Device for cooling excitation-current supply lines in liquid-cooled turbogenerator rotors  
Device for cooling excitation-current supply lines in a shaft connected at one end thereof to a liquid-cooled turbogeneration rotor having coil windings mounted thereon, the excitation-current...
3932778 Cooling device for an electric rotary machine  
A plurality of salient poles and a stator are adapted to be cooled only by cooling gas which is passed through a plurality of fluid passageways formed in a yoke of a rotor. By the arrangement that...
3918479 Heat system for dishwasher  
A dishwasher in which the temperature of washing fluid and/or a load heating medium is elevated by the direction thereof into heat transferral contact with the electric drive motor that supplies...
3914630 Heat removal apparatus for dynamoelectric machines  
A dynamoelectric machine has a hollow shaft for transferring heat from within a rotor of the machine to a finned heat remover. The finned heat remover is rotated by separate power, in close...
3908140 Liquid-cooled rotor for dynamoelectric machines  
A liquid-cooled rotor is provided for large dynamoelectric machines such as turbine generators. Coolant liquid, preferably water, is supplied through a shaft bore and radial passages to a...
3906265 Honeycomb stator inserts for improved generator cooling  
In a gas-cooled generator or other dynamoelectric machine, honeycomb stator inserts are mounted on the stator after assembly of the rotor extending into the gap therebetween. The peripherally...
3894253 Very high current field winding for dynamoelectric machine rotor  
An arrangement for a dynamoelectric machine rotor with a very high current winding employing only one or two conductors per slot. The slot windings are held by insulated dovetails and extend to the...
3891877 Directly liquid cooled rotor winding for a non-salient pole synchronous electric machine  
A directly liquid cooled winding for the rotors of non-salient pole synchronous electric machines, wherein electric connections of the winding coils are effected with the help of auxiliary...
3882335 Cooling apparatus for the rotor of an electric machine which uses a heat pipe  
An improved cooling apparatus for the rotor of an electric motor in which a hollow center portion of the rotor has placed within it working fluid to cause the rotor to act as a heat pipe. The...
Matches 251 - 300 out of 430 < 1 2 3 4 5 6 7 8 9 >