EP 1597484 A1 20051123 - METHOD AND DEVICE FOR PRESSURE AMPLIFICATION IN CYLINDERS, IN PARTICULAR HYDRAULIC RAMS
Title (en)
METHOD AND DEVICE FOR PRESSURE AMPLIFICATION IN CYLINDERS, IN PARTICULAR HYDRAULIC RAMS
Title (de)
VERFAHREN UND VORRICHTUNG ZUR DRUCKERHÖHUNG IN ZYLINDERN, INSBESONDERE HYDRAULISCHEN STEMPELN
Title (fr)
PROCEDE ET DISPOSITIF PERMETTANT L'AUGMENTATION DE PRESSION DANS DES CYLINDRES, EN PARTICULIER DES ETANCONS HYDRAULIQUES
Publication
Application
Priority
- DE 2004000207 W 20040206
- DE 10306128 A 20030214
Abstract (en)
[origin: WO2004072486A1] A method and corresponding cylinder (1) for pressure amplification in cylinders are disclosed, characterised in that a second pressurising piston (16) with a small piston rod (17) is arranged within the cylinder (1), in other words, within the cylinder housing (3), by means of which the piston surface cavity (8) in the vicinity of the piston (5) or the pressure medium present there can be further compressed. It is thus possible to increase the stroke displacement where required or to increase the pressure within the cylinder (1). Further advantages can also be achieved with the above.
IPC 1-7
IPC 8 full level
E02F 9/22 (2006.01); E21D 23/16 (2006.01); F15B 3/00 (2006.01); F15B 11/032 (2006.01)
CPC (source: EP US)
E02F 9/22 (2013.01 - EP US); E21D 23/16 (2013.01 - EP US); F15B 3/00 (2013.01 - EP US); F15B 11/0325 (2013.01 - EP US); F15B 2211/214 (2013.01 - EP US); F15B 2211/7055 (2013.01 - EP US)
Citation (search report)
See references of WO 2004072486A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2004072486 A1 20040826; AT E366370 T1 20070715; AU 2004211436 A1 20040826; AU 2004211436 B2 20091008; DE 10306128 A1 20040826; DE 502004004233 D1 20070816; EP 1597484 A1 20051123; EP 1597484 B1 20070704; US 2006207251 A1 20060921; US 7424803 B2 20080916
DOCDB simple family (application)
DE 2004000207 W 20040206; AT 04708712 T 20040206; AU 2004211436 A 20040206; DE 10306128 A 20030214; DE 502004004233 T 20040206; EP 04708712 A 20040206; US 54581806 A 20060201