EP 0886875 A1 19981230 - ROTATABLE SINGLE-PHASE ELECTROMAGNETIC ACTUATOR WITH A MAGNETIC SPRING, AND ELECTRICALLY OPERATED VALVE USING SAME
Title (en)
ROTATABLE SINGLE-PHASE ELECTROMAGNETIC ACTUATOR WITH A MAGNETIC SPRING, AND ELECTRICALLY OPERATED VALVE USING SAME
Title (de)
EINPHASIGE ELEKTROMAGNETISCHE DREHBARE BETÄTIGUNGSVORRICHTUNG MIT MAGNETFEDER UND ELEKTRISCHES VENTIL MIT EINER SOLCHEN BETÄTIGUNGSVORRICHTUNG
Title (fr)
ACTIONNEUR ELECTROMAGNETIQUE MONOPHASE ROTATIF A RESSORT MAGNETIQUE ET VANNE ELECTRIQUE METTANT EN OEUVRE UN TEL ACTIONNEUR
Publication
Application
Priority
- FR 9700080 W 19970116
- FR 9600496 A 19960117
Abstract (en)
[origin: WO9726667A1] A single-phase electromagnetic actuator with a torque caused by a constant current over a major part of the working stroke, and a magnetic righting torque about an inoperative position that is stable in the absence of a current. The actuator comprises a stationary device (1) consisting of stator circuit energised by at least one electric coil, and a rotatably movable device (2) comprising a thin magnet with 2N pairs of magnetic poles magnetised in alternate directions. The actuator further comprises righting means for returning the movable device (2) to a predetermined inoperative angular position, said righting means being magnetic or magnetostatic means consisting of a thin auxiliary righting magnet (34) arranged in the air gap, provided with 2N pairs of magnetic poles magnetised in alternate directions, and secured to the stator poles.
IPC 1-7
IPC 8 full level
H01F 7/14 (2006.01)
CPC (source: EP)
H01F 7/145 (2013.01)
Citation (search report)
See references of WO 9726667A1
Designated contracting state (EPC)
AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
WO 9726667 A1 19970724; AT E396486 T1 20080615; DE 69738708 D1 20080703; EP 0886875 A1 19981230; EP 0886875 B1 20080521; FR 2744559 A1 19970808; FR 2744559 B1 19980410; JP 2000503165 A 20000314
DOCDB simple family (application)
FR 9700080 W 19970116; AT 97900660 T 19970116; DE 69738708 T 19970116; EP 97900660 A 19970116; FR 9600496 A 19960117; JP 50871797 A 19970116