Global Patent Index - EP 0528103 B2

EP 0528103 B2 20000628 - Electrohydraulic actuator

Title (en)

Electrohydraulic actuator

Title (de)

Elektrohydraulische Stelleinheit

Title (fr)

Dispositif de commande électro-hydraulique

Publication

EP 0528103 B2 20000628 (DE)

Application

EP 92104566 A 19920317

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

F15B 13/043; F15B 13/16

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 :

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