EP 0528103 B2 20000628 - Electrohydraulic actuator
Title (en)
Electrohydraulic actuator
Title (de)
Elektrohydraulische Stelleinheit
Title (fr)
Dispositif de commande électro-hydraulique
Publication
Application
Priority
DE 4124140 A 19910720
Abstract (en)
[origin: EP0528103A1] An electrohydraulic actuator, in particular for controlling construction machines, is proposed which has a displaceable main piston (2) as well as electromagnetically operable control means (5, 6). Merely a single control means (3) is provided which is designed as a pilot valve and is essentially arranged in series with the main piston (2). At least one displacement/force transducer in the form of a spring (7) is in operative connection with the main piston (2) as well as with the piston (4) of the pilot valve (3). <IMAGE>
IPC 1-7
IPC 8 full level
F15B 13/043 (2006.01); F15B 13/16 (2006.01)
CPC (source: EP)
F15B 13/0402 (2013.01); F15B 13/043 (2013.01); F15B 13/0433 (2013.01); F15B 13/0435 (2013.01); F15B 13/16 (2013.01)
Citation (opposition)
Opponent :
- DE 2830332 A1 19790125 - CESSNA AIRCRAFT CO
- US 3783901 A 19740108 - SCHNEIDER K, et al
- Prospect Nr. 625 D 1.80 der Firma MOOG GmbH mit der Titel: "Servoverstellgeräte für Verstellpumpen und Verstellmotoren"
Designated contracting state (EPC)
DE FR GB IT SE
DOCDB simple family (publication)
DE 4124140 A1 19930121; DE 4124140 C2 19950413; DE 59203972 D1 19951116; EP 0528103 A1 19930224; EP 0528103 B1 19951011; EP 0528103 B2 20000628
DOCDB simple family (application)
DE 4124140 A 19910720; DE 59203972 T 19920317; EP 92104566 A 19920317