| Patents for H02K 9 - Systems for cooling or ventilating (16,917) |
|---|
| 09/18/1991 | EP0447106A2 Improved nuclear reactor coolant pump with internal self-cooling arrangement |
| 09/18/1991 | CN2085110U Hight-temp. rapping electrical motor |
| 09/17/1991 | US5049771 Electrical machine |
| 09/17/1991 | CA1289220C Method of adjusting thermal balance of rotor |
| 09/15/1991 | CA2029227A1 Generator auxiliary mode lubrication system and method |
| 09/11/1991 | EP0446119A1 Manufacturing method of a fan rotor for rotating electric machines, particularly for alternators for cars, and fan rotor obtained by such a method |
| 09/10/1991 | CA1288795C Cooling arrangement for a dc motor |
| 09/04/1991 | EP0444908A2 Armature for an electric motor |
| 09/04/1991 | EP0444220A1 Hydraulic motor-pump unit |
| 09/04/1991 | EP0444059A1 Cooling system for the chamber of a generator/transmission unit. |
| 08/29/1991 | DE4104740A1 Vehicle alternator cooling system - has feed and return connections for cooling fluid flow provided in common cover of alternator housing and container |
| 08/29/1991 | DE4003155A1 Elektrische maschine mit fremdbelueftung Electrical machine with fremdbelueftung |
| 08/28/1991 | EP0443168A1 Air cooled generator, in particular high-speed vehicle a.c.-generator |
| 08/20/1991 | US5040493 Automotive intake manifold with integral alternator |
| 08/14/1991 | EP0440754A1 Generator with auxiliary fan. |
| 08/13/1991 | US5038853 Heat exchange assembly |
| 08/08/1991 | WO1991011845A1 Electrical machine with external air cooling |
| 08/08/1991 | WO1991011297A1 Hand machine-tool with radial fan |
| 08/08/1991 | DE4003029A1 Handgefuehrte werkzeugmaschine mit radialgeblaese Guided hand machine tools with radialgeblaese |
| 08/07/1991 | EP0440096A1 Spindle arrangement for workpieces for a lathe |
| 08/01/1991 | DE4002453A1 Workpiece spindle arrangement for hollow-spindle rotary machine - is cooled by liq. supplied through interconnected channels with communication between rotor and rotary supply part |
| 07/31/1991 | EP0438517A1 Canned motor pump with pressure-proof casing. |
| 07/31/1991 | EP0438466A1 Filtering device for a canned motor pump. |
| 07/23/1991 | US5034639 Stator drain and electrical apparatus employing the same |
| 07/23/1991 | US5034638 Generator auxiliary mode lubrication system and method |
| 07/11/1991 | WO1991010068A1 Burner for motor vehicle heater |
| 07/09/1991 | US5030877 Turbine engine with integral clam shell dynamoelectric machine |
| 07/09/1991 | US5030863 Cooling system for superconducting rotating machine |
| 07/03/1991 | EP0434845A1 Structure for liquid-cooling of motor |
| 07/02/1991 | US5028826 Fan arrangement for a vehicular AC generator |
| 07/02/1991 | US5028218 Immersion pump assembly |
| 06/27/1991 | WO1991009445A1 Liquid-cooled electric generator |
| 06/27/1991 | DE3942647A1 Brenner fuer eine kraftfahrzeug-standheizung Burner for a motor vehicle-condensation heating |
| 06/27/1991 | DE3942083A1 Hand-held power tool with enhanced motor cooling - has radial and axial fans juxtaposed and keyed to motor armature shaft in space immediately ahead of downstream stator winding heads |
| 06/26/1991 | CN2079825U Ventilating motor with compact structure for pipeline |
| 06/25/1991 | US5026476 Antivibration cover for rotary machine |
| 06/20/1991 | DE3941474A1 Fluessigkeitsgekuehlter elektrischer generator Fluessigkeitsgekuehlter electrical generator |
| 06/19/1991 | EP0433247A1 Casing construction for electric motors |
| 06/19/1991 | CN2079384U 冷却式氢气干燥器 Hydrogen-cooled dryer |
| 06/13/1991 | DE4032944A1 Gas-cooled electric machine e.g. turbogenerator - has immediate connections to coolers from exits of gas outflow chambers closed from winding head spaces |
| 06/05/1991 | CN1052009A Stator coil water system early alert hydrogen leakage monitor |
| 06/04/1991 | US5021696 Cooling fan with reduced noise for variable speed machinery |
| 05/28/1991 | US5019737 Twin-walled casing for electric motor with forced air-cooling |
| 05/28/1991 | US5019735 Motor construction for an electric fan |
| 05/28/1991 | US5019733 AC generator |
| 05/28/1991 | CA1284519C Air cooled electromechanical drive apparatus |
| 05/23/1991 | CA2030462A1 Stator coil water system early alert hydrogen leakage monitor |
| 05/16/1991 | WO1991007003A1 Stator end winding cooling arrangement for a variable speed generator |
| 05/15/1991 | EP0427642A1 Cooling device for the inductor of a linear motor |
| 05/15/1991 | EP0427208A2 Air-cooled type induction motor for use in vehicles |
| 05/15/1991 | EP0426751A1 Stator support structure with stamped end plates |
| 05/14/1991 | US5014800 Motor driving device provided with decelerator and electric vehicle |
| 05/14/1991 | CA1284166C Electric machine with a closed cooling loop |
| 05/08/1991 | EP0425805A1 Apparatus for cooling shaft seals |
| 05/08/1991 | EP0425492A1 Hand-held power-tool with enclosed-ventilation drive motor. |
| 05/08/1991 | CN1012563B Grinding machine |
| 05/02/1991 | EP0424867A1 Electric motor cooling device |
| 05/01/1991 | CA2028785A1 Method and apparatus for cooling shaft seals |
| 04/30/1991 | US5012146 Beveled generator shaft for improved heat transfer |
| 04/24/1991 | EP0423616A1 Electric motor of minimal axial dimensions, particularly for use with fans |
| 04/23/1991 | US5010273 Agile magnetron with tuning motor with improved cooling |
| 04/18/1991 | WO1991005398A1 Electrical machine with fluid cooling |
| 04/18/1991 | WO1991005397A1 Radial type cooling fan for electric motors |
| 04/17/1991 | CN2075398U Motor with cooling water jecket |
| 04/11/1991 | DE4019894A1 Hand held electric power tool with pistol grip handle - has motor and main weight concentrated in handle with short tool spindle for improved location and drive control via geared transmission |
| 04/11/1991 | DE3932481A1 Elektrische maschine mit fluidkuehlung Electrical machine with fluidkuehlung |
| 04/09/1991 | US5006743 Multiple compartmented dynamoelectric machine |
| 04/09/1991 | US5006740 Insulated cooling boot for power tool |
| 04/03/1991 | EP0420371A1 An electrical rotary machine and a centrifugal fan for use in an electrical rotary machine |
| 04/02/1991 | US5004942 Power and control chamber for dynamoelectric machines |
| 03/27/1991 | CN2074073U Indirect air-cooled electromagnetic adjustable-speed motor and electromagnetic speed regulator |
| 03/27/1991 | CN2074072U Disk-type electric machine with internal air-duct |
| 03/26/1991 | US5003207 Stator end winding cooling arrangement for a variable speed generator |
| 03/21/1991 | WO1991003855A1 Permanent magnet excited rotating electrical high speed machine |
| 03/21/1991 | WO1991003348A1 High speed drill spindle |
| 03/20/1991 | EP0418135A1 Electrical machine with collector |
| 03/20/1991 | EP0418027A1 A cooling fan for rotating electrical machinery |
| 03/19/1991 | US5001378 Rotor with reduced windage losses |
| 03/19/1991 | US5000769 System for ventilating a rail traction motor and for dynamically purifying the ventilation air |
| 03/13/1991 | EP0416468A1 Air-cooled motor for use in vehicles |
| 03/06/1991 | EP0415138A2 Spindle arrangement for a lathe |
| 03/06/1991 | EP0415076A2 Suction cleaner |
| 03/06/1991 | EP0414926A1 Drive of a slow running rotor of a working machine |
| 03/02/1991 | WO1991003859A1 Rotor with reduced windage losses |
| 03/02/1991 | CA2044278A1 Rotor with reduced windage losses |
| 02/27/1991 | EP0414507A1 Improvements in electric reluctance machines |
| 02/27/1991 | EP0413829A1 Through type motor |
| 02/27/1991 | EP0413708A1 Electric machine, in particular tubular generator. |
| 02/21/1991 | WO1991002397A1 Generator with auxiliary fan |
| 02/21/1991 | DE3931665C1 Split-ring electric motor for pump - has feeder coupled to pump chamber at point exhibiting high pressure |
| 02/20/1991 | EP0413113A2 Electronically commutated motor for vacuum cleaner and the like |
| 02/20/1991 | CN1049399A Heat-transmission unit of power machine-heat pipe pump |
| 02/13/1991 | EP0412645A1 Dual-face cooling fan for a dynamoelectric machine |
| 02/07/1991 | WO1991001587A1 Structure for liquid-cooling of motor |
| 02/07/1991 | WO1991001585A1 Toothless stator construction for electrical machines |
| 02/07/1991 | DE3925337A1 Electric motor with housing accommodating stator surrounding rotor - has cooling ducts running axially so gaseous cooling medium under high pressure is fed in closed cooling circuit |
| 01/29/1991 | US4988903 Coil assembly for voice coil motor |
| 01/29/1991 | US4987953 Shared coolant system for marine generator |
| 01/24/1991 | DE4004464A1 Compact electric hand tool |
| 01/24/1991 | DE4004463A1 Switching device for range of modular electric hand tools - has internal of external manually controlled ring for operating interior switch plate and brush angle for reversing motor |