Hydac Filtertechnik Gmbh

Ttcontrol Gmbh

Marcus Simon Specks

Marcus Karl Pfeiffer

Andreas Kugi

Sascha Alexander Biwersi

Johannes Henikl

Reiner Vierkotten

Wolfgang Kemmetmüller

Andreas Lehmann

Christoph Stoenner

Marcus Hettiger

Stephan Grün

Wolfgang Tebeek

Joseph Schnittker

Erik Lautner

Christoph STÖNNER

Erik Lauter

A control device, in particular for hydraulically controlling components of mobile working machines, has a pressure supply connection (P) and a tank or return connection (T) in addition to two user connections (A, B). Control and/or regulating valves () are connected between the individual connections (P, T, A, B). Two control lines (C, Z) can control at least one of the control and/or regulating valves. A modular-type functional block () is connected to at least one of the control lines (C, Z).

Control apparatus

An electrohydraulic control circuit for driving a hydraulically actuated actuating element (), by means of which a segment () of a manipulator, in particular of a large manipulator for truck-mounted concrete pumps, can be adjusted in terms of its orientation, wherein there are provided an electrically driven first valve (), which is connected to hydraulic working lines of the actuating element () for the drive thereof, and leak-free check valves () provided in the working lines of the actuating element (), which valves are arranged on the actuating element () or on the segment () associated with this actuating element () and can be released for the normal operation of the actuating element (), wherein the release of the check valves () is driven by an electronic control unit (ECU) separate from the first valve () and the check valves ().

Electrohydraulic control circuit

Growing community of inventors

St. Ingbert, Germany

Marcus Simon Specks