Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
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
Method and device for managing devices in device management system
Phase-change memory device having multiple diodes
Phone messaging using audio streams
Nonvolatile semiconductor memory device
High surface area composition for use in the catalytic hydroconversion of a heavy hydrocarbon feedstock, a method making such composition and its use
Data distribution apparatus, data distribution method, and distribution control program
Polymers derived from benzobis(silolothiophene) and their use as organic semiconductors
  Randomly Featured Patents
Holder for installing parts on printed circuit board
Metric conversion board
Child restraint apparatus for vehicle
Data storage apparatus including parallel concurrent data transfer
Combination automobile seat and stroller
Corrosion resistant component of semiconductor processing equipment and method of manufacture thereof
Female jock strap
Detent component
Fluorescent utility light
Spray nozzle manifold