EP 0044328 A4 19820526 - INDUCTION MOTOR WITH SHORT-CIRCUITED ARMATURE AND A PIPE CAGE.
Title (en)
INDUCTION MOTOR WITH SHORT-CIRCUITED ARMATURE AND A PIPE CAGE.
Title (de)
INDUKTIONSMOTOR MIT KURZSCHLUSSANKER UND RÖHRENKÄFIG.
Title (fr)
MOTEUR A INDUCTION AVEC INDUIT EN COURT-CIRCUIT ET CAGE D'ECUREUIL FORMEE PAR DES TUYAUX.
Publication
Application
Priority
HU 21080 A 19800131
Abstract (en)
[origin: WO8102228A1] Induction motor with a short-circuited armature and a pipe cage at which the rotor bars protrude beyond the frontal side of the rotor at one or both ends thereof and on the protruding bar ends short-circuiting means are arranged. In the bar section between the short-circuiting means and the frontal side of the motor, at least on one side of the rotor short-circuited tubes made of a magnetizable material are placed on each of the rotor bars insulated from the rotor bars. The wall-thickness of said tubes is selected in such a manner that partly they should reach or at least approximate the state of magnetic saturation under the influence of starting current, partly the Skin-effect should arise in them. The excitation and plus-slippage occuring at the operational speed of rotation may be eliminated, when the tubes are provided with one or more slits forming air-gaps in longitudinal direction, preferably along the external and/or internal generatrix.
IPC 1-7
IPC 8 full level
H02K 9/06 (2006.01); H02K 17/16 (2006.01)
CPC (source: EP)
H02K 17/16 (2013.01)
Citation (search report)
- US 3662195 A 19720509 - WIELT WARREN PIERCE
- US 1685677 A 19280925 - HOWARD MAXWELL
- GB 1121239 A 19680724 - TRANSELEKTRO MAGYAR VILLAMOSSA
- GB 381957 A 19321011 - LANCASHIRE DYNAMO & CRYPTO LTD, et al
- US 3513342 A 19700519 - SABEV TODOR
- GB 241513 A 19260719 - ACEC
- DE 2719326 A1 19781102 - SIEMENS AG
Designated contracting state (EPC)
DE FR GB SE
DOCDB simple family (publication)
WO 8102228 A1 19810806; AU 6770681 A 19810817; BR 8106183 A 19811124; DK 430981 A 19810929; EP 0044328 A1 19820127; EP 0044328 A4 19820526; ES 499478 A0 19820201; ES 8202202 A1 19820201; FI 66710 B 19840731; FI 66710 C 19841112; FI 812860 L 19810914; HU 181044 B 19830530; IN 152660 B 19840303; IT 8119440 A0 19810130; JP S57500135 A 19820121
DOCDB simple family (application)
HU 8100007 W 19810127; AU 6770681 A 19810127; BR 8106183 A 19810127; DK 430981 A 19810929; EP 81900341 A 19810127; ES 499478 A 19810128; FI 812860 A 19810914; HU 21080 A 19800131; IN 98CA1981 A 19810129; IT 1944081 A 19810130; JP 50054781 A 19810127