Patent ID: 11962195
Assignee: DENSO CORPORATION
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A rotary electric machine comprising:
a rotor; and
a concentrated winding stator arranged coaxially to the rotor, wherein
the number of teeth of the concentrated winding stator is set to be a value multiplied by 2, the value being an integer that is a multiple of 3, and the integer being between adjacent prime numbers in a prime number sequence,
the number of poles of the rotor is set to be a value equal to one of the adjacent prime numbers multiplied by 2,
the number of teeth is a multiple of 12 and the number of poles is defined as 12k±2, where k is 7 or 17, the number of poles being at least 80, and
a short pitch factor of the concentrated winding stator is in a range of 0.998 to 0.999.