EP 0854296 B1 20030604 - Piston-type accumulator with sealing device
Title (en)
Piston-type accumulator with sealing device
Title (de)
Kolbenspeicher mit Dichtungsvorrichtung
Title (fr)
Accumulateur à piston avec dispositif d'étanchéité
Publication
Application
Priority
DE 19701303 A 19970116
Abstract (en)
[origin: EP0854296A2] The accumulator has two isolator pistons (12,18) which separate a fluid side (14) from a gas side (16), and an intermediate chamber (20) with sealing medium. The pistons are moved towards each by the force of a pretension unit, so that the sealing medium is compressed. The unit has a power accumulator (26) and a connection rod (28), which passes through both pistons. The accumulator is a compression spring, supported with its ends on the first piston and on the connecting rod. At least one of the pistons (12) has a closeable feed line (36) for the sealing medium, which opens into the intermediate chamber. The medium is a highly viscous oil.
IPC 1-7
IPC 8 full level
F15B 1/24 (2006.01)
CPC (source: EP)
F15B 1/24 (2013.01); F15B 2201/205 (2013.01); F15B 2201/21 (2013.01); F15B 2201/312 (2013.01); F15B 2201/3157 (2013.01); F15B 2201/32 (2013.01); F15B 2201/411 (2013.01)
Designated contracting state (EPC)
AT CH DE LI NL SE
DOCDB simple family (publication)
EP 0854296 A2 19980722; EP 0854296 A3 19990707; EP 0854296 B1 20030604; AT E242431 T1 20030615; DE 19701303 A1 19980723; DE 59710219 D1 20030710
DOCDB simple family (application)
EP 97118384 A 19971023; AT 97118384 T 19971023; DE 19701303 A 19970116; DE 59710219 T 19971023