EP 3938690 A1 20220119 - ELECTROHYDRAULIC SYSTEM HAVING AN ADJUSTMENT DEVICE FOR A VALVE
Title (en)
ELECTROHYDRAULIC SYSTEM HAVING AN ADJUSTMENT DEVICE FOR A VALVE
Title (de)
ELEKTROHYDRAULISCHES SYSTEM MIT EINER VERSTELLVORRICHTUNG FÜR EIN VENTIL
Title (fr)
SYSTÈME ÉLECTRO-HYDRAULIQUE POURVU D'UN DISPOSITIF DE DÉPLACEMENT POUR UNE SOUPAPE
Publication
Application
Priority
- DE 102019203514 A 20190315
- EP 2020056135 W 20200309
Abstract (en)
[origin: WO2020187615A1] The invention relates to an electrohydraulic system having an adjustment device (1) for a valve (2), comprising a drive apparatus (3), a control apparatus (4) and a preloading apparatus (5). In the event of a fault, the energy stored in the preloading apparatus (5) can be transferred to the control apparatus (4) such that a rotational motion of the control apparatus (4) begins, which leads to the adjustment of the valve (2). The preloading apparatus (5) comprises at least one elastic element, which is arranged adjacent to a control shaft (10) of the control apparatus (4), is stationarily connected to the control shaft (10) and applies a torque to the control shaft (10).
IPC 8 full level
F16K 31/56 (2006.01); F16K 31/04 (2006.01); F16K 31/163 (2006.01)
CPC (source: EP US)
F16K 31/043 (2013.01 - EP US); F16K 31/1635 (2013.01 - EP US); F16K 31/563 (2013.01 - EP US); E21B 34/04 (2013.01 - EP)
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)
DE 102019203514 A1 20200917; CN 113544423 A 20211022; EP 3938690 A1 20220119; US 11976741 B2 20240507; US 2022163133 A1 20220526; WO 2020187615 A1 20200924
DOCDB simple family (application)
DE 102019203514 A 20190315; CN 202080021240 A 20200309; EP 2020056135 W 20200309; EP 20711535 A 20200309; US 202017437670 A 20200309