Method and apparatus for magnetizing a permanent magnet

US7345560B2 · kind B2 · utility

Assignee

• General Electric Company · US

Inventors

• Evangelos Trifon Laskaris · Schenectady, US
• Liang Li · Beijing, CN
• Kathleen Melanie Amm · Clifton Park, US
• Juliana Shei · Niskayuna, US
• Bulent Aksel · New York, US
• Mark Gilbert Benz · Burnt Hills, US
• Gerald Burt Kliman · Niskayuna, US
• Paul Thompson · Stephentown, US
• Israel S. Jacobs · Schenectady, US
• Harold Jay Patchen · Burnt Hills, US

Key dates

• Filing date: Oct 10, 2003
• Grant date: Mar 18, 2008
• Expiry date: Mar 2, 2025

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T29/49117
• WIPO field: Electrical machinery, apparatus, energy
• WIPO sector: Electrical engineering

Abstract

A method of making a permanent magnet body is provided. The method includes providing a first precursor body comprising a plurality of blocks and magnetizing the first precursor body to form a first permanent magnet body. A recoil magnetization pulse may be applied to the permanent magnet body after the magnetization. The precursor body may be heated during magnetization. A power supply containing a battery may be used to energize a pulsed magnet used to magnetize the precursor body.