EP 4023892 A1 20220706 - CONTROL DEVICE FOR A HYDRAULIC CIRCUIT
Title (en)
CONTROL DEVICE FOR A HYDRAULIC CIRCUIT
Title (de)
STEUERVORRICHTUNG FÜR EINEN HYDRAULIKKREISLAUF
Title (fr)
DISPOSITIF DE COMMANDE POUR UN CIRCUIT HYDRAULIQUE
Publication
Application
Priority
IT 202000032702 A 20201229
Abstract (en)
The present invention refers to a control device (1) configured to be connected to a hydraulic circuit and comprising a fluid supply/discharge section (2) and a connection section (3) configured to be connected to an actuator (7, 7L, 7R). Moreover, the control device provides a control section configured both to drive the actuator in one or more operative conditions and to implement, in an anomaly and/or emergency conditions, a safety function operating on the actuator based on this latter the complete retraction of the rod (9) of the actuator inside the box body (8) is determined. The control section has a first operative section (5) and a second operative section (6, 6L, 6R) provided with at least one respective redundancy level and configured, at the occurrence of the anomaly and/or emergency conditions, to ensure said retraction of the rod (9) by the respective redundancy levels.
IPC 8 full level
F15B 20/00 (2006.01)
CPC (source: EP)
F15B 20/00 (2013.01); F15B 20/002 (2013.01); F15B 20/008 (2013.01); F15B 2013/0413 (2013.01); F15B 2211/30505 (2013.01); F15B 2211/30565 (2013.01); F15B 2211/3057 (2013.01); F15B 2211/30575 (2013.01); F15B 2211/31 (2013.01); F15B 2211/327 (2013.01); F15B 2211/41509 (2013.01); F15B 2211/41527 (2013.01); F15B 2211/41554 (2013.01); F15B 2211/6658 (2013.01); F15B 2211/8623 (2013.01); F15B 2211/8636 (2013.01); F15B 2211/8752 (2013.01); F15B 2211/8757 (2013.01)
Citation (search report)
- [A] US 2015152898 A1 20150604 - BANAY SLAVEN [CH], et al
- [A] US 2016288771 A1 20161006 - DE VRIES GERHARDUS [AT], et al
- [A] EP 3447315 A1 20190227 - HAMILTON SUNDSTRAND CORP [US]
- [A] US 2008087014 A1 20080417 - SCHICK TROY EUGENE [US], et al
- [A] DE 102011119788 A1 20130606 - BOSCH GMBH ROBERT [DE]
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
DOCDB simple family (application)
EP 21215828 A 20211220