Patent ID: 7579738

Claim:
A wheel motor comprising: a first element having: teeth, separated by slots, equidistantly disposed in a first circular array along said first element, proximate ones of said teeth being grouped into at least three magnetically isolated sections, each one of said sections having an equal number of said teeth, a distance between adjacent teeth on separate adjacent sections being equal to a distance between adjacent teeth on a same section, all of said slots having an identical shape; and phases; wherein a number of said sections is one of a number of said phases and a multiple of said number of said phases; wherein each one of said sections holds only one of said phases; and a second element having magnets equidistantly disposed in a second circular array along said second element; and a wheel frame for concentrically mounting said first element and said second element and allowing rotation thereof relative to each other, said first array of electromagnet poles facing said second array of magnets with a constant air-gap; wherein a number of said teeth on each one of said sections is an odd number of at least three and a difference between a total number of said teeth and a number of said magnets is one.