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August 2026

• patent · 16 Apr 2002 · added 2 months ago

  Electric machine

  Electric rotary current machine that includes a casing and a stator fitted within the casing. The stator has at least one stator winding. At least two mechanically separate rotors...

• patent · 9 Jan 2001 · added 2 months ago

  Hybrid energy recovery system

  A system for recovering energy from the natural and man made sources of wind, water and sunshine provides within a given local area wind, water and solar apparatuses for converting...

• patent · 11 Jan 2000 · added 2 months ago

  Synchronous machine, in particular generator for motor vehicle

  A synchronous machine, in particular a generator for a motor vehicle, has an excitation system with a plurality of electrically excited individual poles in a rotor, preferably in f...

• patent · 31 Aug 2004 · added 2 months ago

  Method of operating a wind power installation and a wind power installation

  The present invention concerns a method of operating a wind power installation comprising an electric generator drivable by a rotor for outputting electrical power to an electrical...

• patent · 29 Oct 2002 · added 2 months ago

  Methods and apparatus for increasing power of permanent magnet motors

  A method of increasing the power output of existing permanent magnet motors along with apparatus is disclosed. Increased power output is achieved by more completely utilizing the m...

• patent · 14 Mar 2000 · added 2 months ago

  High power low RPM D.C. motor

  A high power low RPM direct current electric motor is disclosed whereby the high power output is achieved in one of two ways or both. In the first case, the need for cooling is red...

• patent · 27 Feb 2001 · added 2 months ago

  High-power low-RPM DC motor

  A high power low RPM direct current electric motor is disclosed whereby the high power output is achieved in one of two ways or both. In the first case, the need for cooling is red...

• patent · 7 May 2002 · added 2 months ago

  Electric machine with a rotor constructed of permanent magnets and magnetic flux guides

  An electric machine comprising a stator and a rotor ( 2 ) separated by an air gap ( 12 ), (a) the rotor ( 2 ) being composed with permanent magnets ( 8 ) magnetized substantially i...

• patent · 26 Oct 1999 · added 2 months ago

  Rotary electric machine having auxiliary permanent magnets

  A rotor of an alternator having a plurality of claw poles, a plurality of auxiliary permanent magnets and a magnet holder for the permanent magnets. The magnet holder is composed o...

• patent · 14 Sep 1999 · added 2 months ago

  Permanent magnet motor rotor

  A permanent magnet motor rotor arrangement including a rotor core having radial and angular positioning surfaces provides for inexpensive and precise positional control of rotor co...

• patent · 4 Sep 2001 · added 2 months ago

  Low-speed directly driven wind turbine

  An electrical energy production system includes a wind turbine having blades mounted on a support and which rotationally drive an alternator. The alternator includes at least one m...

• patent · 29 Sep 1998 · added 2 months ago

  Electric motor or generator

  A device such as an electric motor, an electric generator, or a regenerative electric motor includes a rotor arrangement and a stator arrangement. The stator arrangement has a diel...

• patent · 1 Sep 1998 · added 2 months ago

  Rotors with retaining cylinders and reduced harmonic field effect losses

  A rotor includes a shaft; a permanent magnet layer; and a retainer comprising a conductive, low magnetic permeability material bound to the rotor shaft. The permanent magnet layer...

• patent · 16 Nov 1999 · added 2 months ago

  Electric motor and generator having amorphous core pieces being individually accommodated in a dielectric housing

  A device such as an electric motor, an electric generator, or a regenerative electric motor includes a rotor arrangement and a stator arrangement. The stator arrangement has a diel...

• patent · 9 Jul 2002 · added 2 months ago

  Power-transducer/conversion system and related methodology

  A system and method (several variations) for interconverting moving fluid power and electrical power, involving, in one embodiment, an aerodynamic rotor integrated with an electric...

• patent · 12 Jun 2001 · added 2 months ago

  Hooded wind power engine

  Wind engine device consisting of a wind power engine ( 2 ) and means ( 3 ) to increase the wind velocity in the direction of the wind power engine ( 2 ) when the wind velocities ar...

• patent · 13 Apr 1999 · added 2 months ago

  Permanent magnet generator rotor

  A permanent magnet rotor for an electric generator or motor has a core lamination hub formed of a stack of generally round plates with peripheral slots for holding the first end of...

• patent · 5 May 1998 · added 2 months ago

  Wind energy conversion device with angled governing mechanism

  A wind energy conversion device includes a support frame that pivots on a vertical yaw axis, and a rotor/bushing assembly coupled to the support frame through a governing coupling...

• patent · 2 Apr 2002 · added 2 months ago

  Motor-operated flow control valve and exhaust gas recirculation control valve for internal combustion engine

  Disclosed is a motor-operated flow control valve for internal combustion engines which has a longer useful life and does not cause a drop of torque generated by a motor at the star...

• patent · 30 Apr 2002 · added 2 months ago

  Motor-operated flow control valve and exhaust gas recirculation control valve for internal combustion engine

  Disclosed is a motor-operated flow control valve for internal combustion engines which has a longer useful life and does not cause a drop of torque generated by a motor at the star...

• patent · 27 Feb 2001 · added 2 months ago

  Motor-operated flow control valve and gas recirculation control valve for internal combustion engine

  Disclosed is a motor-operated flow control valve for internal combustion engines which has a longer useful life and does not cause a drop of torque generated by a motor at the star...

• patent · 18 Jul 2000 · added 2 months ago

  Motor-operated flow control valve and exhaust gas recirculation control valve for internal combustion engine

  Disclosed is a motor-operated flow control valve for internal combustion engines which has a longer useful life and does not cause a drop of torque generated by a motor at the star...

• patent · 7 Oct 2003 · added 2 months ago

  Process for the production of laminated cores

  The method of manufacturing a sheet stack for electromagnetic assemblies, consisting of ferromagnetic material, includes forming the sheet stack from raw magnetic steel sheets in a...

• patent · 16 Nov 1999 · added 2 months ago

  Vehicle mounted motor with rotor having ferrite magnet section with embedded permanent magnet pieces therein

  A motor mounted in a vehicle having ferrite magnet section formed as a rotor core. The ferrite magnet section has a plurality of recesses, or through holes, circumferentially provi...

• patent · 6 Jan 1998 · added 2 months ago

  Blade de-icer for rotary wing aircraft

  A blade de-icer for rotary wing aircraft comprises magnets placed around rotor mast and coils with laminated plates installed at the blade cuff of each rotor blade, in sufficient p...

• patent · 21 Jul 1998 · added 2 months ago

  Method and apparatus for generating electrical energy

  An apparatus for generating electrical energy includes at least one fixedly mounted stator having a generally cylindrical cross-section and further including an inner periphery and...

• patent · 16 May 2000 · added 2 months ago

  Horizontal axis wind turbine

  A horizontal axis wind turbine comprises a rotor-supporting framework, a multi-vaned rotor, an electricity-generating stator, and a rotation track. The supporting framework is cons...

• patent · 25 Aug 1998 · added 2 months ago

  Variable speed wind turbine generator with zero-sequence filter

  A variable speed wind turbine generator system to convert mechanical power into electrical power or energy and to recover the electrical power or energy in the form of three phase...

• patent · 7 Jul 1998 · added 2 months ago

  Thin bias magnet unit for magneto-optical recording device

  A bias magnet unit has a permanent magnet that applies a bias magnetic field to an optical spot on a magneto-optical disk. A driving coil rotates the magnet in order to change a po...

• patent · 2 Sep 1997 · added 2 months ago

  Variable speed wind turbine with radially oriented gear drive

  A wind turbine assembly includes a gear drive assembly having an outer tubular member and an inner tubular member, the inner member being positioned coaxially within the outer memb...