EP 1253327 B1 20050112 - Hydraulic control circuit

Title (en)

Hydraulic control circuit

Title (de)

Hydraulische Steuereinrichtung

Title (fr)

Circuit de commande hydraulique

Publication

EP 1253327 B1 20050112 (DE)

Application

EP 02008997 A 20020423

Priority

DE 10120996 A 20010428

Abstract (en)

[origin: EP1253327A1] The hydraulic controller has one or more control valves connected to hydraulic medium feed and return channels. A hydraulic medium feed device is activated via an electromagnetic valve with connections to the feed channel, return channel and signal pressure line. The feed and return channels are connected by a cross-channel containing the electromagnetic valve and a choke. The signal pressure is tapped from between the valve and choke. The hydraulic controller has control valves for controlling hydraulic loads and connected to feed and return channels for a hydraulic medium. A hydraulic medium supply device can be activated via an electromagnetic valve with connections to the feed channel, the return channel and a signal pressure line. The feed channel (21) is connected to the return channel (23) via a cross-channel (35) containing the electromagnetically operated valve (36) and a downstream choke (37). The signal pressure is tapped from between the electromagnetically operated valve, which has a two-way-two-setting function, and the choke.

IPC 1-7

F15B 11/16

IPC 8 full level

F15B 11/16 (2006.01)

CPC (source: EP)

Designated contracting state (EPC)

DE FR GB IT

DOCDB simple family (publication)

EP 1253327 A1 20021030; EP 1253327 B1 20050112; DE 10120996 A1 20021031; DE 50201979 D1 20050217

DOCDB simple family (application)

EP 02008997 A 20020423; DE 10120996 A 20010428; DE 50201979 T 20020423