YOKE, ELECTROMAGNETIC ACTUATOR, AND STIRLING ENGINE

Title:

YOKE, ELECTROMAGNETIC ACTUATOR, AND STIRLING ENGINE

Document Type and Number:

WIPO Patent Application WO/2005/034304

Kind Code:

A1

Abstract:

A yoke used for electromagnetic actuators is disclosed which is formed by compacting a soft magnetic iron powder. The yoke is provided with a notch portion for preventing eddy current loss. By having such a notch portion, eddy current loss is prevented in the yoke, thereby enabling to operate an actuator highly efficiently.

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Inventors:

TANAKA SHOHZOH (JP)

Application Number:

PCT/JP2004/010481

Publication Date:

April 14, 2005

Filing Date:

July 23, 2004

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Assignee:

SHARP KK (JP)
TANAKA SHOHZOH (JP)

International Classes:

H01F3/08; H02K33/16; H01F1/22; (IPC1-7): H02K1/12; H02K1/02

Domestic Patent References:

WO2000062406A1

2000-10-19

Foreign References:

JPH0731114A	1995-01-31
JP2001178028A	2001-06-29
JP2004003436A	2004-01-08

Attorney, Agent or Firm:

Sano, Shizuo (2-6 Tenmabashi-Kyomach, Chuo-Ku Osaka-Shi Osaka 32, JP)

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