Resources Contact Us Home
Permanent magnet type three-phase AC rotary electric machine

Image Number 3 for United States Patent #6998750.

Several embodiments of permanent magnet type three-phase AC rotary electric machines wherein the phase current flow is formed by parallel circuits formed by a plurality of serial circuits each comprising one or a plurality of stator coils so that electromagnetic voltage or counter electromagnetic voltage generated across opposite ends of the plural serial circuits may be always almost the same. Thus, a circulating current does not flow in the parallel circuits, whereby the efficiency of the rotary electric machine can be improved. Also, since the line current circuit of each of the phases is constituted of a parallel circuit, the current flowing in each of the stator coils is small so that the diameter of the stator coil wire can be small. Thus, the winding of the coils can be improved. Also, the processing of the coil terminals is facilitated and the processed portions of the terminals can be made small, resulting in a compact rotary electric machine.

  Recently Added Patents
RFID reader revocation checking using low power attached displays
Multi-protocol data transfers
Process to increase selectivity to ethylene in oxygenates-to-olefins conversions
Biaxially oriented hydrolysis-stable polyester film comprising epoxidized fatty acid derivatives and a chain extender, and process for production thereof and use thereof
Electronic component mounting machine and operating instruction method for the same
Washing machine
Method and system for reciprocal mixing cancellation of wideband modulated blockers
  Randomly Featured Patents
Titanium silicide nitride emitters and method
Photographing optical lens assembly
Vehicle structure including a bracket structure assembly for mounting a loose upper deck panel onto a vehicle body
Plasticiser alcohol and production improvement
Multiphase fluid flow measurement
Kitchen utensil
Slide connectors with locking means
Tape cartridge for coating film transfer tool and coating film transfer tool
Tomographic apparatus for the production of transverse tomographic images
Information processing apparatus and its control method