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
The present invention prevents the degradation of the power generating efficiency of an alternating current generator by preventing the expansion of an air gap formed between pole...
patent · · added 2 months ago
A rotor (10) includes a plurality of permanent magnets (14) disposed around a shaft (12) at generally equal intervals, and a plurality of laminated core members (16) disposed betwe...
patent · · added 2 months ago
A rotor (10) includes a plurality of permanent magnets (14) disposed around a shaft (12) at generally equal intervals, and a plurality of laminated core members (16) disposed betwe...
patent · · added 2 months ago
A method of sealing a high performance internal combustion engine with a head gasket having a fire ring comprising providing a groove in the head or block generally concentric with...
patent · · added 2 months ago
A dynamoelectric machine rotor comprising a plurality of substantially trapezoidal prism-shaped permanent magnets mounted on a magnetic yoke. Each of the magnets has magnetic pole...
patent · · added 2 months ago
A method of sealing a high performance internal combustion engine with a head gasket having a fire ring comprising providing a groove in the head or block generally concentric with...
patent · · added 2 months ago
An electromechanical transducer, such as a motor (1), comprising a rotor member (4), a stator member (3) having an electrical winding (8), and isolating means (11, 9, 16, 12) isola...
patent · · added 2 months ago
Blade pitch of variable pitch blades is changed by an actuator having first and second ac machines. The first ac machine is excited with ac power to apply a motoring torque to a co...
patent · · added 2 months ago
A rotor of a synchronous motor incorporates a rotor core assembly 14 including a rotor core 10 formed by a lamination of ferrosilicone plates and a plurality of permanent magnets 1...
patent · · added 2 months ago
A tandem type alternator comprises a rotor rotatably supported inside a housing and having rotor cores having magnetic poles formed on outer peripheral portions of the rotor cores,...
patent · · added 2 months ago
An electromagnetic motor includes a rotor having a plurality of magnets mounted along a perimeter of the rotor. Preferably, adjacent magnets have opposite poles facing outward. One...
patent · · added 2 months ago
A wind turbine for mounting on an existing industrial chimney (1), tower or the like, includes two vertically aligned blades (3) mounted on rotor arms (2) for rotation about the lo...
patent · · added 2 months ago
A motor having flux-concentrating permanent magnets, the motor including a stator with windings and a rotor including a shaft, a sleeve surrounding the shaft for holding rotor lami...
patent · · added 2 months ago
A machine for converting wind energy into electrical energy comprising in combination a housing; propellers at the forward and rearward ends of the housing mounted on shafts for ro...
patent · · added 2 months ago
Wind turbine for generating electrical energy by means of wind energy, comprising a turbine rotor which can be mounted on a mast and is rotatable about a rotor shaft with one or mo...
patent · · added 2 months ago
Magnetically rigid materials are utilized to enhance the field magnitudes oduced by permanent magnet structures that are utilized in electric machinery. Magnetic circuit losses due...
patent · · added 2 months ago
The problem of preloading a rotor assembly (14) in a dynamoelectric machine (10) of the permanent magnet type is solved by providing a hub (20) having a plurality of outwardly open...
patent · · added 2 months ago
Method and apparatus for controlling the output frequency of an alternator by maintaining a relatively constant speed of rotation of the alternator rotor are disclosed. The rotor i...
patent · · added 2 months ago
A seal assembly for the rotor shafts of internal mixers and the like used in the compounding of rubber and plastic. The assembly (130,170) comprises seal rotor means (130,170) carr...
patent · · added 2 months ago
A lightweight electromotive device with a high power-to-weight ratio capable of operating as an efficient motor, alternator or generator includes an mangetic-flux producing assembl...
patent · · added 2 months ago
Contained in an electrical machine with a field excited by permanent magnets, on the rotor, are pole bodies that extend in ring fashion and coaxially with the rotor shaft, forming...
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 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
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 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
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 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...
