Patents for H02K 9 - Systems for cooling or ventilating (16,917)
01/1991
01/22/1991CA1279360C Fluid circulated linear motor for robotic systems
01/17/1991DE3922514A1 Collector cooling arrangement for electrically-powered hand tool - increases flow of air around collector by guidance through ring with spacing commensurate with desired flow
01/16/1991EP0407376A1 External rotor motor
01/15/1991WO1991001586A1 A fan for an electrically operated machine
01/10/1991DE4019658A1 Vertical axis pin motor for magnetic data disc - has rotor combined with hub supported from axis pin via facing rotary bearings
01/08/1991US4983866 Encapsulated armature for electric motor
01/01/1991US4982122 Method and apparatus for insulating liquid-cooled stator coil headers and connectors
12/1990
12/30/1990CA2020079A1 Motor stator heat spike
12/25/1990US4980588 Water-cooled vehicle generator
12/20/1990DE4016663A1 DC servomotor with integrated speed controller - has chopper on PCB with interference screen due to housing protrusion
12/19/1990EP0402517A1 Drive for a slowly running rotor of a process machine
12/19/1990CN2067887U Cooler with inner rib steel tube and rectangular fins
12/19/1990CN1010912B Coolant gas flow separator baffle for dynamoelectric machine
12/19/1990CN1010895B Generator stator winding diagnostic method
12/18/1990CA1278015C Stator assembly for dynamoelectric machine
12/12/1990EP0401287A1 Power-operated device with a cooling facility.
12/06/1990DE3917811A1 Pump for use in sterile or clean room - has cooling system for motor which does not require circulation of air
12/05/1990EP0401034A1 Fan arrangement for a vehicular AC generator
11/1990
11/14/1990EP0397627A1 Tunnel boring machine
11/14/1990CN1047002A Miniature motor
11/13/1990US4969803 Compressor unit
11/13/1990US4969796 Method and apparatus for cooling shaft seals
11/07/1990CN1010361B Superconduction magnetic shielding ac generator without sliding contaction
11/06/1990US4968911 Clam-shell stator construction for electrical machines
10/1990
10/31/1990CN1010240B Cogeneration system
10/24/1990EP0393194A1 Laser oscillator
10/24/1990CN1046416A Electric machine with centrifugal heat-transfer tube for rotor cooling
10/24/1990CN1010158B Ganged inside-out brushholder for dymanoelectric machine
10/23/1990US4965477 Integrated drive generator with permanent magnet generator on second shaft
10/18/1990WO1990012444A1 Clam-shell stator construction for electrical machines
10/17/1990EP0392418A2 Device for the ventilation of railway traction engines and for filtering the ventilation air
10/16/1990US4963778 Frequency converter for controlling a motor
10/16/1990US4963776 Vehicular a.c. generator having improved cooling structure
10/16/1990US4962829 Oil management tank system
10/04/1990WO1990011640A1 An improved cooling system for generators
10/02/1990US4961016 Dual-face cooling fan for a dynamoelectric machine
09/1990
09/27/1990DE3909253A1 Elektrische maschine mit einem zentrifugalen waermerohr zur laeuferkuehlung Electrical machine with a centrifugal waermerohr to laeuferkuehlung
09/25/1990US4959570 Motor cooling system
09/25/1990US4959569 Stator coil water system early alert hydrogen leakage monitor
09/20/1990WO1990010970A1 Through type motor
09/19/1990EP0387743A1 Enclosed air cooled electrical motor and its manufacturing method
09/19/1990EP0387500A1 Protective covering for the free winding head of a unilaterally supported electric machine
09/19/1990CN1045489A Bolted spherical series/phase generator connections
09/18/1990US4958095 Starter-alternator for a vehicle engine
09/11/1990US4955944 Rotating electric machine
09/05/1990EP0385596A1 Totally enclosed electric motor
09/05/1990CN1045202A Direct cooled bore connector
09/04/1990US4953663 Oil supply for integrated drive generator
08/1990
08/29/1990EP0384568A2 Rotor for vehicle dynamo
08/29/1990EP0384241A1 Direct cooled bore connector
08/29/1990CN2061347U Circulating cooling device for unit of hydroelectric station
08/28/1990US4952828 Brushless generator with front cover inner-stator mount
08/22/1990EP0383683A1 Alternating current generator
08/21/1990US4950932 Axial flow fan integral with electronically commutated motor
08/14/1990US4948996 Direct cooled bore connector
08/09/1990WO1990009053A1 Liquid cooling structure of motor
08/09/1990WO1990009052A1 Electric machine with vertical shaft
08/08/1990EP0381009A2 Drive for the workpiece spindle of a machine-tool
08/06/1990CA2009308A1 Electric motors having integrated control housing and method of fabrication
07/1990
07/31/1990CA1272240A1 Spider baffle for double end ventilation in dynamoelectric machine
07/24/1990US4943746 Liquid cooled salient pole rotor support wedges
07/18/1990EP0377815A2 Protection means for in- and outlets of ventilation air in electric rotating machines
07/18/1990CN1044018A Bore pack exciter cooling system
07/18/1990CN1043983A Automatic oil draining system for generators
07/11/1990EP0377154A1 Bore pack exciter cooling system
07/04/1990EP0376498A1 Motor terminal box mounted solid state starter
07/04/1990EP0376178A1 Machine tool with motor spindle cooling
07/04/1990EP0376070A1 Automatic oil draining system for generators
06/1990
06/27/1990EP0374739A1 A motor pump unit for a high-pressure cleaner
06/19/1990US4934341 Throttle actuator of internal combustion engine
06/05/1990US4931678 Double-insulated air-cooled electromotor for barrel pump
05/1990
05/30/1990CN1042585A Transmission-generator-cooling apparatus of the shaft
05/23/1990EP0369746A2 Varistor in an electric motor
05/23/1990EP0179799B1 Centrifugal oil pump flow proportioning and cooling system
05/17/1990WO1990005403A1 Cooling system for the chamber of a generator/transmission unit
05/16/1990EP0368556A2 Bolted spherical series/phase generator connections
05/15/1990US4926076 Alternator with attached diode regulator housing
05/15/1990CA1269131A1 Brushless blower motor with load proportional cooling for control circuitry
05/09/1990CN2057046U Encolsed electric machine cooled by blower both inside and outside
05/09/1990CN1007931B Temp. monitoring system for an electric generator
05/07/1990CA2002281A1 Bolted spherical series/phase generator connections
05/01/1990US4922163 Actively cooled brush box assembly
05/01/1990US4922148 Water-cooled alternator for vehicle
05/01/1990US4922146 Cooling arrangement for a DC motor
04/1990
04/25/1990EP0364706A2 Pump unit, especially for dish washing machines
04/25/1990EP0364512A1 Liquid vapor purging system
04/25/1990CN2056549U Air-tight sealing three-phase asynchronous motor for water cooling furnace
04/19/1990WO1990004279A1 Canned motor pump with pressure-proof casing
04/19/1990WO1990004110A1 Filtering device for a canned motor pump
04/19/1990DE3933067A1 Air-cooled electric motor
04/18/1990EP0363815A1 Electric motor
04/17/1990US4918343 Brushless alternator
04/17/1990US4918323 Engine starting and charging device
04/04/1990EP0361925A2 Electromechanical machines
04/03/1990US4914329 Ventilation air flow block in an electric motor
04/03/1990US4913695 Liquid vapor purging system
04/03/1990US4912834 Method of adjusting thermal balance of rotor
03/1990
03/28/1990CN1007393B Liquid cooled static excitation system for dynamoelectric machine
03/27/1990USRE33186 Electric rotary machine having superconducting rotor
03/13/1990US4908757 Static frequency converter, especially a frequency converter controlling and/or adjusting the performance data of an electromotor