EP 0405189 B1 19930929 - ELECTROMAGNETIC POSITIONING DEVICE
Title (en)
ELECTROMAGNETIC POSITIONING DEVICE
Publication
Application
Priority
DE 3920976 A 19890627
Abstract (en)
[origin: EP0405189A1] In an electromagnetic positioning device operating according to the principle of the spring-mass oscillator (12,18,5,20), in particular for actuating control valves in displacement machines, the working stroke of the control element can be varied by changing the position of the pole face of a working magnet (2) and the foot point (11) of one or more springs of the spring system. For this purpose, a magnetic control system serves to simultaneously change the spacing of the pole faces and to adapt the centre of oscillation to the new position of the pole faces by changing the position of one or more spring foot points. In addition, with this control system the magnetic resistance of one or more working magnets can also be changed. <IMAGE>
IPC 1-7
IPC 8 full level
F16K 31/02 (2006.01); F01L 1/24 (2006.01); F01L 9/20 (2021.01); H01F 7/16 (2006.01)
CPC (source: EP US)
F01L 1/181 (2013.01 - EP US); F01L 9/20 (2021.01 - EP US)
Designated contracting state (EPC)
AT CH DE ES FR GB IT LI SE
DOCDB simple family (publication)
EP 0405189 A1 19910102; EP 0405189 B1 19930929; AT E95278 T1 19931015; DE 3920976 A1 19910103; DE 59002882 D1 19931104; JP 2827170 B2 19981118; JP H0344009 A 19910225; RU 1836596 C 19930823; US 5131624 A 19920721
DOCDB simple family (application)
EP 90110570 A 19900605; AT 90110570 T 19900605; DE 3920976 A 19890627; DE 59002882 T 19900605; JP 16698090 A 19900627; SU 4830615 A 19900626; US 54295190 A 19900625