EP 1576627 A2 20050921 - ELECTROMAGNETIC VALVE ACTUATOR WITH PERMANENT MAGNET
Title (en)
ELECTROMAGNETIC VALVE ACTUATOR WITH PERMANENT MAGNET
Title (de)
ELEKTROMAGNETISCHE VENTILBETÄTIGUNGSVORRICHTUNG MIT EINEM PERMANENTMAGNETEN
Title (fr)
ACTIONNEUR ELECTROMAGNETIQUE DE SOUPAPE A AIMANT PERMANENT
Publication
Application
Priority
- FR 0303808 W 20031219
- FR 0216518 A 20021223
Abstract (en)
[origin: US2007025047A1] The invention relates to an electromagnetic valve actuator comprising an actuator member ( 11, 14 ) movable under the effect of a resilient member ( 12, 13 ) and of at least one coil ( 20 ), and at least one permanent magnet ( 22 ) arranged to hold the actuator member ( 11, 14 ) in at least one of its extreme positions against the resilient member ( 12, 13 ) when the coil ( 20 ) is not powered, the coil ( 20 ) being associated with a core ( 16 ) comprising two portions ( 17 ) having respective first facets ( 21 ) in contact with the permanent magnet ( 22 ) and respective second facets ( 23 ) that present between them an airgap (<U STYLE="SINGLE">e) of size that is much smaller than a thickness (H) of the permanent magnet. According to the invention, the airgap (<U STYLE="SINGLE">e) forms an angle with the direction ( 25 ) of magnetization of the permanent magnet ( 22 ).
IPC 1-7
IPC 8 full level
F01L 9/20 (2021.01)
CPC (source: EP US)
F01L 9/20 (2021.01 - EP US); F01L 2009/2136 (2021.01 - EP US); F01L 2009/2148 (2021.01 - EP US)
Citation (search report)
See references of WO 2004061875A2
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR
DOCDB simple family (publication)
US 2007025047 A1 20070201; AT E414978 T1 20081215; DE 60324838 D1 20090102; EP 1576627 A2 20050921; EP 1576627 B1 20081119; FR 2849262 A1 20040625; FR 2849262 B1 20061229; JP 2006511953 A 20060406; WO 2004061875 A2 20040722; WO 2004061875 A3 20040910
DOCDB simple family (application)
US 54001706 A 20061003; AT 03799640 T 20031219; DE 60324838 T 20031219; EP 03799640 A 20031219; FR 0216518 A 20021223; FR 0303808 W 20031219; JP 2004564292 A 20031219