| Patents for H02K 7 - Arrangements for handling mechanical energy structurally associated with the machine, e.g. structural association with mechanical driving motor or auxiliary dynamo-electric machine (44,087) |
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| 06/27/1991 | WO1991009226A1 Versatile portable animal energy convertor |
| 06/27/1991 | WO1991008919A1 Power unit for vehicles |
| 06/26/1991 | EP0433649A1 Fluid metering pump |
| 06/25/1991 | US5027280 Machining apparatus having a main spindle supported by magnetic bearings |
| 06/25/1991 | US5027025 Flat brushless motor |
| 06/25/1991 | US5027024 Dynamoelectric machine with bearing retainer |
| 06/25/1991 | US5027023 Electric motor including reduction-gear and circuit |
| 06/25/1991 | US5027022 Reverse rotation preventing mechanism for synchronous motors |
| 06/20/1991 | DE4038020A1 Stepper motor turning shaft through small angle - by intermittent drive from flexible connection part carrying piezoelectric element and overcoming spring elements |
| 06/20/1991 | DE3941847A1 Magnetic to mechanical energy converter - has rocking plate setting disc in rotation by oscillating between like poles of stationary and motor-driven magnets |
| 06/19/1991 | EP0433040A1 Engine with flywheel generator |
| 06/19/1991 | EP0432852A1 Starting device for a two-pole single-phase synchronous motor with permanent magnet rotor |
| 06/19/1991 | CN2079385U Self-braking primary straight-line motor driving device |
| 06/19/1991 | CN2079383U Mineral part fan |
| 06/18/1991 | US5025184 Small-sized electric motor |
| 06/18/1991 | US5024540 Shaft bearing with a ball socket in a frame-mounted housing |
| 06/18/1991 | US5024418 Fluid flow rate control device |
| 06/13/1991 | DE3940487A1 Electric machine with continuously variable mechanical adjustment - provided by relative movement of rotor and stator in conical configuration causing variation of air gap |
| 06/12/1991 | EP0431037A1 Electrical supply system for low current loads. |
| 06/12/1991 | CA2005292A1 Electric generator type windmill |
| 06/11/1991 | US5023530 Windshield wiper motor |
| 06/11/1991 | US5022503 Electrically actuated wheel hub clutch apparatus |
| 06/06/1991 | DE4008757C1 Sync. motor with automatic switch=off - has follower disc rotating and operating switch disc supplying current if switch=off torque between rotor and shaft is exceeded |
| 06/06/1991 | DE3939868A1 DC tachogenerator for brushless motor commutation and regulation - is juxtaposed on hollow shaft with encoder of angular position of rotor w.r.t. stator of motor |
| 06/05/1991 | EP0430009A1 Power supply unit for a vacuum pump with magnetic thrust bearings and with an auxiliary power supply for the thrust bearings in case of a power failure |
| 06/05/1991 | EP0429718A1 Electro-motor |
| 06/05/1991 | EP0429659A1 Driving system and controller therefor |
| 06/04/1991 | US5021697 Auxiliary bearing design for active magnetic bearings |
| 05/29/1991 | EP0428895A2 Actuator |
| 05/29/1991 | DE3938970A1 Screwed spindle drive for slide of machine tool - has driving motor shaft formed integrally with screwed spindle |
| 05/29/1991 | CN1051830A Asynchronous two-speed through-flow water turbogenerator |
| 05/28/1991 | US5019755 Electric motor drive system |
| 05/28/1991 | US5019738 Self-pressurizing gas supported surface-roughness bearing |
| 05/28/1991 | US5019734 Brake coupler for displacement-type armature motor |
| 05/28/1991 | US5019732 Disengageable linear stepper motor with recentered rotor |
| 05/28/1991 | US5018603 Elevator hoist apparatus |
| 05/28/1991 | CA1284519C Air cooled electromechanical drive apparatus |
| 05/23/1991 | DE3938575A1 Protection device for permanent-magnet clutch - has concentric brake brought into play by trip devices in event of irregular or eccentric rotation of driving element |
| 05/21/1991 | US5017819 Linear magnetic spring and spring/motor combination |
| 05/21/1991 | US5017087 Multi-functional rotary hydraulic machine systems |
| 05/21/1991 | US5016491 Gear assembly |
| 05/18/1991 | CA2029745A1 Actuator |
| 05/16/1991 | WO1991007004A1 Induction motor of the outer rotor-type |
| 05/15/1991 | EP0427145A1 Pump with driving motor |
| 05/15/1991 | CN1051467A Motor with isolated rotor from stator |
| 05/14/1991 | US5015940 Pressure constraint of a rotating article such as a flywheel |
| 05/14/1991 | US5015930 Power converting mechanism |
| 05/14/1991 | US5015897 Geared electric motor |
| 05/14/1991 | US5015159 Fuel pump |
| 05/14/1991 | US5014800 Motor driving device provided with decelerator and electric vehicle |
| 05/08/1991 | EP0426345A2 Generator system |
| 05/08/1991 | DE3933868A1 Automobile ventilation fan with electronically-commutated drive motor - has fan wheel formed by moulded plastics motor armature |
| 05/07/1991 | US5013954 Electrostatic micro-motor apparatus |
| 05/07/1991 | US5013952 Precision brush mounting assembly for small electric motor |
| 05/07/1991 | US5013946 Miniature motor with a frequency generator |
| 05/07/1991 | US5013221 Rotary fuel pump with pulse modulation |
| 05/07/1991 | CA1283945C Electrical contact and terminal assembly |
| 05/02/1991 | EP0425260A1 Built-in generator for cycle |
| 05/02/1991 | EP0250405B1 Annular magnet for motor brakes |
| 05/02/1991 | DE3935968A1 Electric motor with brake operating automatically at switch=off - has brake disc held against bearing plate with provision for axial movement against restoring spring force |
| 05/02/1991 | DE3935754A1 Drive for mobile offshore installation - has ducted impeller with integral rotor inside shaped duct |
| 04/30/1991 | CA1283683C Centre-free large antifriction bearing with integrated electricdirect drive |
| 04/25/1991 | DE3933640A1 Electric generating unit driven by rail friction wheel - is mounted resiliently on coupling, and has two pivoted supports for lateral guidance wheels outside rails |
| 04/24/1991 | EP0423616A1 Electric motor of minimal axial dimensions, particularly for use with fans |
| 04/24/1991 | EP0423361A1 Structure of motor having built-in electromagnetic brake |
| 04/24/1991 | CN1012447B 吊扇 Ceiling fan |
| 04/23/1991 | US5009554 Machine tool |
| 04/18/1991 | WO1991005399A1 Lightweight, direct drive electromechanical actuator |
| 04/17/1991 | CN2075397U 电动机 Electric motor |
| 04/16/1991 | US5008309 Balancing putty |
| 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 | DE3939976C1 Load lifter for small hoist - has impeller vane on DC motor shaft on end facing toward horn gear drive, in order to extract heat generated by motor |
| 04/10/1991 | EP0421558A2 A surgically implantable device |
| 04/10/1991 | EP0421557A2 Method and apparatus for indirect and external adjustment of the setting pressure of a shunt valve |
| 04/10/1991 | EP0421346A2 Method for producing an electric rotary machine such as a motor of DC brushless type |
| 04/10/1991 | EP0421051A2 Zero current brake |
| 04/10/1991 | EP0421029A1 Motion simulator |
| 04/10/1991 | CN2074947U Low-speed electric motor |
| 04/10/1991 | CN2074653U Body building device with shaving, radio receiving and lighting functions |
| 04/09/1991 | US5006943 Disk storage drive |
| 04/09/1991 | US5006740 Insulated cooling boot for power tool |
| 04/09/1991 | CA1282846C Header device |
| 04/04/1991 | WO1991004602A1 Three-phase reluctance motor |
| 04/04/1991 | WO1991004525A1 Portable crash-survivable kinetic energy storage machine |
| 04/04/1991 | DE3931430A1 Spindle drive with spindle nut - is used to convert rotary into linear movement, and has magnetic bearing enclosing spindle thread |
| 04/03/1991 | EP0420212A2 Geared motor |
| 04/03/1991 | CN2074516U Self-brake propulsor of linear motor with floating secondary |
| 04/03/1991 | CN2074513U Stepless variable power electric machine |
| 04/02/1991 | US5003836 Worm gear motor with a built-in sensor |
| 03/27/1991 | EP0419293A1 Armature coil arrangement for an engine starter motor |
| 03/26/1991 | US5002020 Computer optimized hybrid engine |
| 03/21/1991 | WO1991003866A1 Commutator motor |
| 03/21/1991 | WO1991003856A1 Electric motor, in particular small-size electric motor for driving windscreen wipers in motor vehicles |
| 03/21/1991 | WO1991003348A1 High speed drill spindle |
| 03/21/1991 | WO1991003343A1 Multispindle automatic lathe |
| 03/20/1991 | EP0417956A2 Improvements in or relating to the control of linear motors |
| 03/20/1991 | EP0417344A1 Housing with a pressure compensating element peripherically waterproof fixed in a housing wall opening |
| 03/19/1991 | US5001581 Disk storage drive |
| 03/19/1991 | US5000523 Anti-lock braking system with electromagnetic brake |
| 03/19/1991 | CA1281769C Electronically programmable universal brushless dc fan with integral tracking and locked rotor protection |