EP 1664550 A1 20060607 - HYDRAULIC CONTROL AND ADJUSTMENT SYSTEM WITH VOLUME EQUALIZATION

Title (en)

HYDRAULIC CONTROL AND ADJUSTMENT SYSTEM WITH VOLUME EQUALIZATION

Title (de)

HYDRAULISCHES STEUER- UND STELLSYSTEM MIT VOLUMENAUSGLEICH

Title (fr)

SYSTEME DE COMMANDE ET DE REGLAGE HYDRAULIQUE A COMPENSATION DE VOLUME

Publication

EP 1664550 A1 20060607 (DE)

Application

EP 04765311 A 20040916

Priority

EP 2004010412 W 20040916
DE 10343016 A 20030917

Abstract (en)

[origin: WO2005028879A1] A hydraulic control and adjustment system for hydraulic consumers in a working machine, consisting of at least one hydraulic cylinder (1) with a moveable piston cylinder (3) which separates the hydraulic cylinder into a piston-sided pressure adjustment chamber (5) and a hydropump unit (2) for simultaneously supplying hydraulic fluid to two hydraulic circuits (39, 40b). The first connection (10) to a first connection side of the hydropump unit (2) is linked to the piston-chamber-sided adjusting pressure chamber (4); a second connection (12) on a second connection side of the hydropump unit (2) forming a closed hydraulic circuit (39) with the first circuit (10) is connected to the piston-rod-sided pressure adjustment chamber (5) of the hydraulic cylinder (1). The first connection side of the hydropump unit (2) is connected to the piston-sided pressure adjustment chamber (4) with an amount of hydraulic fluid corresponding to a difference in the amount of hydraulic fluid between the piston-sided pressure adjustment chamber (5).

IPC 1-7

F15B 7/00; F15B 7/10

IPC 8 full level

F15B 7/00 (2006.01); F15B 7/10 (2006.01)

CPC (source: EP KR)

F15B 7/00 (2013.01 - KR); F15B 7/006 (2013.01 - EP); F15B 7/10 (2013.01 - EP KR)

Citation (search report)

See references of WO 2005028879A1

Designated contracting state (EPC)

DE GB IT SE

DOCDB simple family (publication)

WO 2005028879 A1 20050331; DE 10343016 A1 20050512; DE 10343016 B4 20100826; EP 1664550 A1 20060607; JP 2007506048 A 20070315; KR 20060061373 A 20060607

DOCDB simple family (application)

EP 2004010412 W 20040916; DE 10343016 A 20030917; EP 04765311 A 20040916; JP 2006526589 A 20040916; KR 20067005182 A 20060315