The archive
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patent · · added 2 months ago
Multiple induction type generators are drivingly connected to an impeller. As wind velocity increases, the generators are successively activated until all of the generators are ope...
patent · · added 2 months ago
A brushless electrical machine has a stator assembly with spaced coils and a rotor assembly with spaced permanent magnets and with axial air gaps between the assemblies. The magnet...
patent · · added 2 months ago
A magnet assembly having means for reducing release of magnet material particles from the magnet element includes a body of permanently magnetizable material and a shell at least p...
patent · · added 2 months ago
A magnet assembly having means for reducing release of magnet material particles from the magnet element includes a body of permanently magnetizable material and a shell at least p...
patent · · added 2 months ago
A permanent-magnet field synchronous motor comprises a rotor body (22) having a cylindrical outer surface. A plurality of permanent magnets (25) attached to the cylindrical outer s...
patent · · added 2 months ago
A rotor structure for a permanent magnet generator, or PMG, includes a plurality of spaced apart magnets and magnetic circuit elements in series with the magnets on the rotor to ac...
patent · · added 2 months ago
The rotor (1), which has magnets (3) in particular of the rare earth-cobalt type, is surrounded by a hoop formed by a metal which has been cold work-hardened and has a high elastic...
patent · · added 2 months ago
A packingless shaft seal between an apparatus housing and a rotatable shaft. The shaft seal includes a sleeve mounted on the shaft and a seal housing mounted on the apparatus housi...
patent · · added 2 months ago
An engine is composed of an exhaust turbine rotatable by the exhaust energy of an exhaust gas discharged from the engine, a generator coupled to the exhaust turbine, and a motor dr...
patent · · added 2 months ago
A magneto rotor assembly is disclosed in which a magnet is clamped in position between a pair of pole pieces within a cavity in a rotor. The pole pieces are provided with at least...
patent · · added 2 months ago
A wind turbine assembly includes a wind turbine 18 mounted in a head 16, the wind turbine driving, via a gear box 22, an air compressor 24, 25, the inlet 26 of which is arranged to...
patent · · added 2 months ago
In these machines, the rim (16) of the rotor (13), supported overhangingly by oblique arms (15), is equipped with a double set of polar pieces (17 and 18), one fastened to the oute...
patent · · added 2 months ago
A windpower system includes a support and a turbine having a shaft rotatively mounted to the support. The turbine has variable pitch blades whose pitch is controlled by the differe...
patent · · added 2 months ago
A shaft sealing device stable in sealing effect and which causes no seal breakdown is provided by changing the groove depth of a thread cut in a rotary shaft in the axial direction...
patent · · added 2 months ago
A dynamoelectric machine having a permanent magnet rotor consisting of a stack of alternating magnetic and structural non-magnetic laminations held together with bead welds on the...
patent · · added 2 months ago
A lighter-than-air (LTA) wind energy conversion system (WECS) wherein the LTA envelope carries a main rotor and electrical generator to take advantage of high wind speeds available...
patent · · added 2 months ago
The system described herein is particularly adapted to convert mechanical energy from a wind or hydraulic driven turbine into electric energy and comprises: an exciter generator an...
patent · · added 2 months ago
A system for obtaining energy by means of fluid flows resembling those of a natural cyclone or anti-cyclone comprises a cyclonic conversion tower constituted by a group of convecto...
patent · · added 2 months ago
This invention relates generally to an improved windmill design that combines the blade and rotor support system with the electrical generating system in such a way as to simplify...
patent · · added 2 months ago
A magnetic suspension system, especially for a rotor, comprises a stator having two axially spaced permanent magnets which are poled the same as a pair of spaced-apart permanent ma...
patent · · added 2 months ago
A wind powered electrical generator having a rotatable wind wheel (21) carrying one of the armature (42) or field structures and a plurality of windvanes (45) connecting the rim to...
patent · · added 2 months ago
A rotor assembly having self-locking wedge-shaped permanent magnets.
patent · · added 2 months ago
A rotor assembly having wedge-shaped permanent magnets and anchors with undulating sides for attaching the rotor hub to the pole bodies.
patent · · added 2 months ago
The present invention relates to a seal of a shaft being rotatable relative to a stationary housing, said shaft being provided with a groove (3, 13), said groove being spiraled suc...
patent · · added 2 months ago
A system for generating alternating current of selected voltage at a target frequency includes a plurality of A.C. generators, at least one of which has a rotatably mounted stator....
patent · · added 2 months ago
A wind driven turbine having a plurality of wind wheels mounted on a single drive shaft supported rotatably on a turntable at the upper end of a supporting framework with a plurali...
patent · · added 2 months ago
A sealing ring structure between a housing and a rotating shaft comprising a first ring member with axially opposite ends facing internally and externally of the housing and with t...
patent · · added 2 months ago
An electric generating system in which oppositely rotating wind driven wheels are used, one to drive the rotor and one to drive the stator of an electric generator.
patent · · added 2 months ago
A totally enclosed, inert gas filled vertical dynamoelectric machine is described wherein liquid lubricant in the lower bearing housing is employed to seal the machine output shaft...
patent · · added 2 months ago
In a mechanical seal with rubbing slide ring and counter ring elements, an annular distributor guiding element which defines the annular channel guiding coolant and lubricating liq...
