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1. (WO2005034304) YOKE, ELECTROMAGNETIC ACTUATOR, AND STIRLING ENGINE
Latest bibliographic data on file with the International Bureau   

Pub. No.: WO/2005/034304 International Application No.: PCT/JP2004/010481
Publication Date: 14.04.2005 International Filing Date: 23.07.2004
IPC:
H01F 1/22 (2006.01) ,H01F 3/08 (2006.01) ,H02K 33/16 (2006.01)
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
F
MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
1
Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
01
of inorganic materials
03
characterised by their coercivity
12
of soft-magnetic materials
14
metals or alloys
20
in the form of particles, e.g. powder
22
pressed, sintered, or bound together
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
F
MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
3
Cores, yokes or armatures
08
made from powder
H ELECTRICITY
02
GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
K
DYNAMO-ELECTRIC MACHINES
33
Motors with reciprocating, oscillating, or vibrating magnet, armature, or coil system
16
with polarised armature moving in alternate directions by reversal or energisation of a single coil system
Applicants: TANAKA, Shohzoh[JP/JP]; JP (UsOnly)
SHARP KABUSHIKI KAISHA[JP/JP]; 22-22, Nagaike-Cho Abeno-Ku, Osaka-Shi Osaka 5458522, JP (AllExceptUS)
Inventors: TANAKA, Shohzoh; JP
Agent: SANO, Shizuo; Tenmabashi-Yachiyo Bldg.Bekkan 2-6, Tenmabashi-Kyomachi, Chuo-Ku Osaka-Shi Osaka 5400032, JP
Priority Data:
2003-34145530.09.2003JP
Title (EN) YOKE, ELECTROMAGNETIC ACTUATOR, AND STIRLING ENGINE
(FR) CULASSE, ACTIONNEUR ELECTROMAGNETIQUE, ET MOTEUR STIRLING
(JA) ヨーク、電磁式アクチュエータ及びスターリング機関
Abstract:
(EN) 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.
(FR) La présente invention a trait à une culasse utilisée pour des actionneurs électromagnétiques formée par le compactage de poudre de fer à aimantation temporaire. La culasse est munie d'une portion d'entaille pour empêcher la perte de courants de Foucault. Grâce à cette portion d'entaille, la perte de courants de Foucault est empêchée dans la culasse, permettant ainsi le fonctionnement hautement efficace d'un actionneur.
(JA)  電磁式アクチュエータに使用されるヨークを、軟磁性鉄粉を成型して形成するとともに、そのヨークに渦電流損の発生を防止する欠切部を形成する。この欠切部により、渦電流の発生を防止し、アクチュエータを高効率に運転できるようにした。
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Designated States: AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BW, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, HR, HU, ID, IL, IN, IS, KE, KG, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MA, MD, MG, MK, MN, MW, MX, MZ, NA, NI, NO, NZ, OM, PG, PH, PL, PT, RO, RU, SC, SD, SE, SG, SK, SL, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, YU, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (EPO) (AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HU, IE, IT, LU, MC, NL, PL, PT, RO, SE, SI, SK, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG)
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)