Global Patent Index - EP 4038285 A1

EP 4038285 A1 20220810 - HYDROSTATIC FAST-ACTING CONTROL SYSTEM

Title (en)

HYDROSTATIC FAST-ACTING CONTROL SYSTEM

Title (de)

HYDROSTATISCHE SCHNELLSCHALTSTEUERUNG

Title (fr)

COMMANDE HYDROSTATIQUE À COMMUTATION RAPIDE

Publication

EP 4038285 A1 20220810 (DE)

Application

EP 20780686 A 20200925

Priority

  • DE 102019215129 A 20191001
  • EP 2020076877 W 20200925

Abstract (en)

[origin: WO2021063825A1] The invention relates to a hydrostatic fast-acting control system comprising a hydraulic cylinder, the piston of which is loaded by a pressure equivalent in the direction of a working position and can be acted upon by a pressure medium counter to the pressure equivalent in the direction of a starting position, wherein a working chamber, at least sections of which are delimited by the piston and which is effective in the direction of the starting position, is fluidically connected to a first working connection of a hydraulic machine via a first pressure medium flow path of the fast-acting control system and can be fluidically connected to a pressure medium sink via a second pressure medium flow path of the fast-acting control system, in which working chamber a logic valve is provided, the valve body of which is loaded into a flow position by a pressure in the second pressure medium flow path and into a closed position by a variable control pressure.

IPC 8 full level

F15B 7/00 (2006.01); F15B 20/00 (2006.01)

CPC (source: EP)

F01D 21/00 (2013.01); F15B 20/00 (2013.01); F05D 2270/09 (2013.01); F05D 2270/64 (2013.01); F15B 7/006 (2013.01); F15B 2211/20515 (2013.01); F15B 2211/20546 (2013.01); F15B 2211/20561 (2013.01); F15B 2211/27 (2013.01); F15B 2211/3058 (2013.01); F15B 2211/329 (2013.01); F15B 2211/428 (2013.01)

Citation (search report)

See references of WO 2021063825A1

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 102019215129 A1 20210401; EP 4038285 A1 20220810; WO 2021063825 A1 20210408

DOCDB simple family (application)

DE 102019215129 A 20191001; EP 2020076877 W 20200925; EP 20780686 A 20200925