Global Patent Index - EP 2643564 A1

EP 2643564 A1 20131002 - PRESSURE ACCUMULATOR OF A HYDRAULIC ACTUATING SYSTEM

Title (en)

PRESSURE ACCUMULATOR OF A HYDRAULIC ACTUATING SYSTEM

Title (de)

DRUCKSPEICHER EINES HYDRAULISCHEN BETÄTIGUNGSSYSTEMS

Title (fr)

ACCUMULATEUR DE PRESSION D'UN SYSTÈME D'ACTIONNEMENT HYDRAULIQUE

Publication

EP 2643564 A1 20131002 (DE)

Application

EP 11732415 A 20110707

Priority

  • DE 102010052550 A 20101125
  • EP 2011061470 W 20110707

Abstract (en)

[origin: WO2012069211A1] A hydraulic actuating system is proposed, in particular for gas exchange valves of reciprocating-piston internal combustion engines, having a pressure source for the hydraulic medium and having at least one pressure accumulator which can be connected to the pressure source and has a piston which can be displaced in a bore, a compression spring and a supporting element for the compression spring with a central opening (3), which supporting element is fixed by means of a spring ring, wherein the supporting element is configured as a spring supporting plate (1), the axial extent of which is considerably shorter than that of the piston.

IPC 8 full level

F01L 9/14 (2021.01); F15B 1/04 (2006.01)

CPC (source: EP US)

F01L 1/02 (2013.01 - US); F01L 9/14 (2021.01 - EP US); F15B 1/04 (2013.01 - EP US); F15B 2201/21 (2013.01 - EP US); F15B 2201/31 (2013.01 - EP US)

Citation (search report)

See references of WO 2012069211A1

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

DOCDB simple family (publication)

DE 102010052550 A1 20120531; EP 2643564 A1 20131002; US 2013255608 A1 20131003; WO 2012069211 A1 20120531

DOCDB simple family (application)

DE 102010052550 A 20101125; EP 11732415 A 20110707; EP 2011061470 W 20110707; US 201313899796 A 20130522