EP 1370772 A1 20031217 - HYDROPNEUMATIC ACCUMULATOR
Title (en)
HYDROPNEUMATIC ACCUMULATOR
Title (de)
HYDROPNEUMATISCHER DRUCKSPEICHER
Title (fr)
ACCUMULATEUR DE PRESSION HYDROPNEUMATIQUE
Publication
Application
Priority
- DE 10112976 A 20010317
- EP 0202750 W 20020313
Abstract (en)
[origin: WO02075161A1] Hydropneumatic accumulator comprising an accumulator housing (1) and a diaphragm (3) located therein, which forms a displaceable partition element between a first chamber, in particular a gas chamber (7) and a second chamber, in particular a liquid chamber (5). Said membrane has several annular regions (31, 33, 35, 37, 39), interconnected by annular weak points (61, 63, 65, 67, 69, 71). The annular regions (31, 33, 35, 37, 39) have protuberances (81, 83, 85, 87, 89) on the interior face of the membrane (3) facing away from the wall of the accumulator housing (1). Said protuberances are at their thickest in the central region between neighbouring weak points, thus increasing the wall thickness of the membrane (3) and are at least partially convex (91, 93), tapering off to a respective flat form towards the weak points.
IPC 1-7
IPC 8 full level
F15B 1/08 (2006.01); F15B 1/10 (2006.01); F15B 1/14 (2006.01)
CPC (source: EP US)
F15B 1/10 (2013.01 - EP US); F15B 1/14 (2013.01 - EP US); F15B 2201/205 (2013.01 - EP US); F15B 2201/3151 (2013.01 - EP US); F15B 2201/3156 (2013.01 - EP US); F15B 2201/41 (2013.01 - EP US); F15B 2201/415 (2013.01 - EP US)
Citation (search report)
See references of WO 02075161A1
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
WO 02075161 A1 20020926; AT E274142 T1 20040915; DE 10112976 A1 20021002; DE 50200872 D1 20040923; EP 1370772 A1 20031217; EP 1370772 B1 20040818; JP 2004522088 A 20040722; JP 4122229 B2 20080723; US 2004065374 A1 20040408; US 6901965 B2 20050607
DOCDB simple family (application)
EP 0202750 W 20020313; AT 02702406 T 20020313; DE 10112976 A 20010317; DE 50200872 T 20020313; EP 02702406 A 20020313; JP 2002573537 A 20020313; US 46826703 A 20030819