EP 0442908 B1 19940420 - FLUID-POWER CYLINDER PROVIDED WITH A CUSHIONING DEVICE.
Title (en)
FLUID-POWER CYLINDER PROVIDED WITH A CUSHIONING DEVICE.
Title (de)
HYDRAULISCHER ZYLINDER MIT DÄMPFUNGSANORDNUNG.
Title (fr)
CYLINDRE HYDRAULIQUE AVEC DISPOSITIF AMORTISSEUR.
Publication
Application
Priority
- SE 8804035 A 19881108
- SE 8900624 W 19891102
Abstract (en)
[origin: WO9005245A1] A fluid-power cylinder comprising a power cylinder member (11) and a power piston member (12) reciprocable therein between end positions includes a device for cushioning the relative movements of the power piston member and the power cylinder member adjacent the end positions. The cushioning device comprises a cushioning cylinder (13) movable together with the power piston member (12) and a cushioning piston (14) which is stationary with respect to the power cylinder member (11) and which is receivable and axially movable in the cushioning cylinder to define a cushioning cylinder compartment (31A, 31B) having a restricted discharge passage (37/38, 40/41). A seal (36A, 36B) on the cushioning piston (14) acts as a one-way valve to prevent flow of cushioning fluid between the cushioning piston (14) and the cushioning cylinder (13) when the cushioning piston moves inwardly in the cushioning cylinder compartment (31A, 31B) and thereby reduces the volume of the compartment, but allows substantially unrestricted fluid flow when the cushioning piston moves outwardly.
IPC 1-7
IPC 8 full level
F15B 11/076 (2006.01)
CPC (source: EP)
F15B 11/076 (2013.01); F15B 2211/40515 (2013.01); F15B 2211/41536 (2013.01); F15B 2211/473 (2013.01); F15B 2211/755 (2013.01); F15B 2211/8855 (2013.01)
Designated contracting state (EPC)
BE DE FR GB IT NL SE
DOCDB simple family (publication)
WO 9005245 A1 19900517; CA 2002278 A1 19900508; DE 68914848 D1 19940526; DE 68914848 T2 19941103; EP 0442908 A1 19910828; EP 0442908 B1 19940420; SE 465529 B 19910923; SE 8804035 D0 19881108; SE 8804035 L 19900509
DOCDB simple family (application)
SE 8900624 W 19891102; CA 2002278 A 19891106; DE 68914848 T 19891102; EP 89912017 A 19891102; SE 8804035 A 19881108