EP 1181457 B1 20030625 - HYDROPNEUMATIC PRESSURE ACCUMULATOR
Title (en)
HYDROPNEUMATIC PRESSURE ACCUMULATOR
Title (de)
HYDROPNEUMATISCHER DRUCKSPEICHER
Title (fr)
ACCUMULATEUR DE PRESSION HYDROPNEUMATIQUE
Publication
Application
Priority
- DE 19924807 A 19990529
- EP 0002083 W 20000310
Abstract (en)
[origin: US6527012B1] A hydropneumatic pressure accumulator, includes a gas chamber, an oil chamber, and a pair of metal bellows separating the chambers. An end plate is displaced according to volume changes in the gas chamber and oil chamber. A valve releases and blocks the flow of hydraulic fluid out of and into the oil chamber and has a valve lifter that controls the valve. During the displacement of the end plate, corresponding to a volume expansion in the gas chamber exceeding a predetermined maximum value, the valve lifter can be displaced by the end plate into a position which blocks the valve. The valve lifter is connected in a fixed manner to the end plate of the metal bellows. The valve can be blocked in two opposing directions by the displacement of the valve lifter.
IPC 1-7
IPC 8 full level
F15B 1/08 (2006.01); F15B 1/10 (2006.01); F15B 1/22 (2006.01)
CPC (source: EP US)
F15B 1/103 (2013.01 - EP US); F15B 1/22 (2013.01 - EP US); F15B 2201/205 (2013.01 - EP US); F15B 2201/3153 (2013.01 - EP US); F15B 2201/411 (2013.01 - EP US); F15B 2201/415 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
US 6527012 B1 20030304; AT E243813 T1 20030715; DE 19924807 A1 20001207; DE 50002656 D1 20030731; EP 1181457 A1 20020227; EP 1181457 B1 20030625; JP 2003500614 A 20030107; WO 0073663 A1 20001207
DOCDB simple family (application)
US 97926701 A 20011121; AT 00912582 T 20000310; DE 19924807 A 19990529; DE 50002656 T 20000310; EP 0002083 W 20000310; EP 00912582 A 20000310; JP 2001500126 A 20000310