Global Patent Index - EP 1319126 A1

EP 1319126 A1 2003-06-18 - CLOSED HYDRAULIC SYSTEM

Title (en)

CLOSED HYDRAULIC SYSTEM

Title (de)

GESCHLOSSENES HYDRAULIKSYSTEM

Title (fr)

SYSTEME HYDRAULIQUE FERME

Publication

EP 1319126 A1 (DE)

Application

EP 01964916 A

Priority

  • DE 0103162 W
  • DE 10046323 A

Abstract (en)

[origin: WO0225096A1] The invention relates to a closed hydraulic system, especially a hydraulic play compensation system, comprising at least one cylinder (1) and a piston (2, 3) having guide surfaces and an adjustment gap placed therebetween. In order to rapidly and thoroughly carry out degasification of the adjustment gap required for working efficiency, the guide surfaces (25, 26) of the piston (2, 3) especially has fine grooves (27).

IPC 1-7 (main, further and additional classification)

F02M 51/06; F02M 59/46; F02M 61/16

IPC 8 full level (invention and additional information)

F02M 51/06 (2006.01); F02M 59/46 (2006.01); F02M 61/16 (2006.01)

CPC (invention and additional information)

F02M 61/167 (2013.01); F02M 51/0603 (2013.01); F02M 63/0026 (2013.01)

Citation (search report)

See references of WO 0225096A1

Designated contracting state (EPC)

DE FR GB IT

EPO simple patent family

WO 0225096 A1 20020328; DE 10046323 A1 20020418; DE 10046323 B4 20040212; EP 1319126 A1 20030618

INPADOC legal status


2006-03-15 [18R] REFUSED

- Effective date: 20051021

2005-07-06 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20050520

2004-05-19 [RBV] DESIGNATED CONTRACTING STATES (CORRECTION)

- Designated State(s): DE FR GB IT

2003-06-18 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20030228

2003-06-18 [AK] DESIGNATED CONTRACTING STATES:

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR