The archive
Everything the archive has gained lately, newest first. Also as a feed for whatever you read feeds with.
patent · · added 2 months ago
A wind turbine rotor blade including NASA LS (1) - 04xx airfoil sections having a twist not greater than 8° and a construction for such a blade which includes no parting line along...
patent · · added 2 months ago
An electric motor operating on the reluctance principle employs spaced rotor discs presenting rings of inwardly fcing poles of alternating polarity, typically by means of permanent...
patent · · added 2 months ago
A device in a submersible pump or mixer prevents solid bodies from entering a housing containing a mechanical seal. The device has a helically formed groove so directed, that pollu...
patent · · added 2 months ago
An electromagnetic transducer is disclosed that is lightweight and has a high power to weight ratio, with the transducer being capable of operation as an efficient motor, alternato...
patent · · added 2 months ago
An electric power generating set for a fluid pipeline, comprising a turbine coupled to the pipeline for rotating under the pressure of the fluid moving in the pipeline; a generator...
patent · · added 2 months ago
An electromagnetic transducer is disclosed that is lightweight and has a high power to weight ratio, with the transducer being capable of operation as an efficient motor, alternato...
patent · · added 2 months ago
A fluid powered electrical generator having an impellor-rotor rotatively mounted on a central support structure. A toroidal outer support structure surrounds the impellor-rotor, wi...
patent · · added 2 months ago
A magnetic-drive centrifugal pump comprises a driving motor, a pump shaft, an impeller, a rotor with a sleeve portion to which is connected the impeller, the rotor and impeller bei...
patent · · added 2 months ago
The synchronous machine comprises a rotor provided with permanent magnets arranged for orthoradial magnetic induction and which are disposed around the axis in such a way that two...
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
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 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
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 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 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
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
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 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
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
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 rotor assembly having self-locking wedge-shaped permanent magnets.
