The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 20, 2014
Filed:
Aug. 18, 2011
John Andrew Gayler, Brighton, AU;
Stephen Robert Kloeden, Gulfview Heights, AU;
Nesimi Ertugrul, Paradise, AU;
Ryusuke Hasegawa, Morristown, NJ (US);
John Andrew Gayler, Brighton, AU;
Stephen Robert Kloeden, Gulfview Heights, AU;
Nesimi Ertugrul, Paradise, AU;
Ryusuke Hasegawa, Morristown, NJ (US);
Glassy Metal Technologies Ltd., Norwood, AU;
Abstract
An electrical rotating machine having a stator or a rotor with a core that includes a plurality of tapered pole pieces is a low loss electrical machine that results in improvements such as higher output power, higher torque and higher efficiency than a machine that does not have tapered pole pieces. The stator or the rotor with tapered pole pieces may be applied to a power train in automobiles, power tools, and various appliances. A method of constructing the core includes winding an iron-based amorphous magnetic alloy ribbon to form a cylinder-shaped core, then heating, impregnating with resin, and machining the cylinder-shaped core to form a plurality of tapered pole pieces being separated in an alternating manner by a plurality of slots. The cores having an outside diameter in a range of 50 mm-1200 mm, a tapered angle in a range of 10°-45°, and a slot depth in a range of 10 mm-210 mm are advantageous.