Global Patent Index - EP 1809432 A2

EP 1809432 A2 20070725 - HYDRAULICALLY-OPERATED CASTING UNIT

Title (en)

HYDRAULICALLY-OPERATED CASTING UNIT

Title (de)

HYDRAULISCH BETÄTIGTE GIESSEINHEIT

Title (fr)

UNITE DE COULEE A ACTIONNEMENT HYDRAULIQUE

Publication

EP 1809432 A2 20070725 (DE)

Application

EP 05802580 A 20051017

Priority

  • DE 2005001849 W 20051017
  • DE 102004050432 A 20041015
  • DE 102005022805 A 20050512
  • DE 102005034202 A 20050721

Abstract (en)

[origin: WO2006039921A2] The invention relates to a hydraulically-operated casting unit, comprising a casting cylinder, the cylinder of which is effective in the extension direction and may be connected, during a form filling phase, to a low pressure reservoir and, in a pressure phase, to a high pressure reservoir, by means of a control valve arrangement. An annular chamber of the casting cylinder, acting in the withdrawal direction, may be pressurised before a pre-filling phase with a counter-pressure. According to the invention, said counter-pressure is applied by means of a high-pressure pump which may be connected directly to the annular chamber of the casting cylinder by means of a counter-pressure valve.

IPC 8 full level

B22D 17/32 (2006.01)

CPC (source: EP)

B22D 17/32 (2013.01)

Citation (search report)

See references of WO 2006039921A3

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

DOCDB simple family (publication)

DE 102005034202 A1 20060420; DE 112005002551 A5 20070712; DE 112005002551 B4 20170302; EP 1809432 A2 20070725; WO 2006039921 A2 20060420; WO 2006039921 A3 20060622

DOCDB simple family (application)

DE 102005034202 A 20050721; DE 112005002551 T 20051017; DE 2005001849 W 20051017; EP 05802580 A 20051017