US Patent No. 10,461,617

MIRRORING OF HIGH ROTOR POLE SWITCHED RELUCTANCE MACHINES


Patent No. 10,461,617
Issue Date October 29, 2019
Title Mirroring Of High Rotor Pole Switched Reluctance Machines
Inventorship Mahesh Krishnamurthy, Wheaton, IL (US)
Mark Johnston, Los Altos Hills, CA (US)
Trevor Creary, San Jose, CA (US)
Piyush Desai, Des Plaines, IL (US)
Assignee Software Motor Company, Sunnyvale, CA (US)

Claim of US Patent No. 10,461,617

1. A high rotor pole switched reluctance machine comprising:at least two rotors positioned about a central axis, each of the at least two rotors comprising a first and second radial rotor surface and a plurality of rotor poles, the rotor poles located on at least one of the radial rotor surfaces; and
at least two stators positioned about the central axis, at least one of which is placed between the at least two rotors, each of the at least two stators comprising a first and second radial stator surface and a plurality of stator poles, the stator poles located on at least one of the radial stator surfaces;
wherein said at least two stators are aligned such that all said stator poles exhibit radial symmetry and wherein said at least two rotors are aligned such that all said rotor poles exhibit radial symmetry; and
wherein the plurality of rotor poles is in a numerical relationship with the plurality of stator poles, the numerical relationship defined by the Multiple Rotor Pole (MRP) formula:
NR,tot=R×NR=S×(2NS?2)
wherein NR,tot is the total number of rotor poles, R is the number of individual rotors, S is the number of individual stators, NR is the number of rotor poles per rotor and NS is the number of stator poles per stator.