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
Pressure washer
Multi-user remote health monitoring system with biometrics support
Non-volatile memory and method having efficient on-chip block-copying with controlled error rate
Apparatus and method for extracting cascading style sheet rules
JTAG multiplexer with clock/mode input, mode/clock input, and clock output
Generalized AC-DC synchronous rectification techniques for single- and multi-phase systems
Power device and method of packaging same
  Randomly Featured Patents
Rheumatoid arthritis T cell vaccine
Method for audible caller name announcement with call list feature
Cationic cassia derivatives and applications therefor
System and method for generating a relationship network
Portion of a hand tool
Voltammetric cell, measuring electrode and method
Deterministic communication between graphical programs executing on different computer systems
Output buffer circuit
Process for the production of acetone from isobutyraldehyde
Accumulating conveyor system