FLYWHEEL ENERGY STORAGE DEVICE WITH INDUCTION TORQUE TRANSFER

• US 20180166946A1
• Filed: 01/23/2018
• Published: 06/14/2018
• Est. Priority Date: 02/20/2013
• Status: Active Grant

• Current Assignee: Raymond James Walsh
• Original Assignee: Raymond James Walsh
• Inventors: Walsh, Raymond James
• Granted Patent: US 10,340,768 B2
• Time in Patent Office: Days
• CPC Class Codes: F03G 3/08 using flywheels
• CPC Class Codes: F04D 13/06 the pump being electrically driven
• CPC Class Codes: F04D 25/06 the pump being electrically driven F04D25/08 takes precedence
• CPC Class Codes: F05D 2260/43 in the form of rotational kinetic energy, e.g. in flywheels
• CPC Class Codes: F16C 2361/55 Flywheel systems in general F16F15/00
• CPC Class Codes: F16C 32/0417 for axial load mainly
• CPC Class Codes: H02K 7/025 for power storage
• CPC Class Codes: H02K 7/09 with magnetic bearings
• CPC Class Codes: Y02E 60/16 Mechanical energy storage, e.g. flywheels or pressurised fluids

Abstract

A flywheel energy storage device includes the Halbach Motor/Generator with rolling biphasic coil control, continuously variable torque transfer via magnetic induction and a reluctance magnetic levitation system known as the Axial-Loading Magnetic Reluctance Device. Electric energy input turns the magnetically coupled rotors of the Halbach motor, and torque is transferred to a flywheel through a copper cylinder variably inserted between the Halbach magnet rotors. In idle mode, the energy is stored kinetically in the spinning flywheel, which is levitated by a permanent magnet bearing. Electric energy output is achieved by transferring torque from the flywheel through the copper cylinder to the rotors of the Halbach Generator by magnetic induction. Rolling biphasic motor control includes dividing Halbach motor coils into increments, then energizing groups of contiguous increments into virtual coils, which revolve in tandem with the magnet rotors so to achieve continuous and optimal torque.

Claims

1. A system for transferring torque, the system comprising:

a pair of double-nested coaxial Halbach cylinders,

a cylindrical gap defined between the pair of double-nested coaxial Halbach cylinders; and

an induction cylinder rotatably mounted coaxially with the gap and configured to be slidably received within the gap at selected depths within the gap.

2. The system of claim 1, wherein the pair of double-nested coaxial Halbach cylinders are magnetically coupled together.

3. The system of claim 1, wherein the pair of double-nested coaxial Halbach cylinders are mechanically coupled together.