EP 2364404 A1 20110914 - HYDRAULIC ACCUMULATOR, IN PARTICULAR BELLOWS ACCUMULATOR
Title (en)
HYDRAULIC ACCUMULATOR, IN PARTICULAR BELLOWS ACCUMULATOR
Title (de)
HYDROSPEICHER, INSBESONDERE BALGSPEICHER
Title (fr)
ACCUMULATEUR HYDRAULIQUE, NOTAMMENT ACCUMULATEUR PNEUMATIQUE
Publication
Application
Priority
- EP 2009007881 W 20091104
- DE 102008061221 A 20081209
Abstract (en)
[origin: WO2010066321A1] The invention relates to a hydraulic accumulator, in particular in the form of a bellows accumulator, in which the bellows (13) which serves as a movable separating element between a gas side (11) and a fluid side (21) has, at that bellows end thereof which is movable in the axial direction during expansion and contraction in the accumulator housing which defines a longitudinal axis (9), a closure body (25) which closes off the interior space (33) of the bellows (13) in a fluid-tight manner, and in which the bellows, at the other bellows end (27) thereof, is immovably fixed with respect to the accumulator housing (1), said hydraulic accumulator being characterized in that the immovable bellows end (27) is fixed to an end body (31) which is fixed with respect to the housing, which end body (31) is in the form of a disk with a region (37) which projects axially into the interior (33) of the bellows (13) from the main plane (35) of the disk, and in that at least one fluid passage (41, 43) is formed on the projecting region (37), which fluid passage (41, 43) connects the interior space (33), which is associated with the fluid side (21), of the bellows (13) to a fluid connection (17) of the accumulator housing (1).
IPC 8 full level
F15B 1/10 (2006.01)
CPC (source: EP US)
F15B 1/103 (2013.01 - EP US); F15B 2201/205 (2013.01 - US); F15B 2201/3152 (2013.01 - US)
Citation (search report)
See references of WO 2010066321A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR
DOCDB simple family (publication)
DE 102008061221 A1 20100610; EP 2364404 A1 20110914; EP 2364404 B1 20120606; JP 2012511122 A 20120517; US 2011192482 A1 20110811; US 8875740 B2 20141104; WO 2010066321 A1 20100617
DOCDB simple family (application)
DE 102008061221 A 20081209; EP 09749013 A 20091104; EP 2009007881 W 20091104; JP 2011538852 A 20091104; US 99828409 A 20091104