Title:
AN ELECTRONICALLY CONTROLLED UNIVERSAL MOTOR
Document Type and Number:
WIPO Patent Application WO/2015/071638
Kind Code:
A3
Abstract:
An electric motor apparatus comprising: a stator component and a rotor component rotationally mounted coaxially with and within the stator component. The stator component and the rotor component each comprise windings configured to generate an electromagnetic field from an electric current. The electric motor further comprises an intermediate screening component rotationally mounted between the stator component and the rotor component and configured to provide at least some magnetic screening between the rotor component and the stator component. The intermediate screening component comprises at least some magnetically active sections configured such that changing magnetic fields generated by changing electric currents in the windings on either the rotor component or the stator component generate a force on the magnetically active sections causing the intermediate screening component to rotate; and control circuitry for independently controlling power supplied to the windings on the rotor component and the stator component in dependence upon a desired output rotational speed.
Inventors:
PIETROMONACO DAVID (US)
Application Number:
PCT/GB2014/053178
Publication Date:
August 27, 2015
Filing Date:
October 24, 2014
Export Citation:
Assignee:
ADVANCED RISC MACH LTD (GB)
International Classes:
H02K5/128; H02K11/00; H02K16/02; H02K99/00; H02P25/02
Foreign References:
| BE477451A | ||||
| US5917248A | 1999-06-29 | |||
| EP1456048A2 | 2004-09-15 | |||
| US20130069566A1 | 2013-03-21 |
Attorney, Agent or Firm:
MALDEN, Nicholas (120 Holborn, London EC1N 2DY, GB)
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