EP 1346167 A1 20030924 - HYDRAULIC SPRING
Title (en)
HYDRAULIC SPRING
Title (de)
HYDROFEDER
Title (fr)
RESSORT HYDRAULIQUE
Publication
Application
Priority
- DE 10064769 A 20001222
- EP 0113208 W 20011115
Abstract (en)
[origin: WO02052167A1] The hydraulic volume (4a, 4b) of a hydraulic spring is shut off on one side by a spring element (6) that has been vulcanised into an external ring (8) and is delimited on the other side by a compensation membrane (10). The aim of the invention is to improve the impermeability between the compensation membrane (10) and the external ring (8). To achieve this, the compensation membrane (10) is clamped in a fixed manner between the external ring (8) and the cover (12). The opposing sealing surfaces (14, 16) of the external ring (8) and the cover (12) are preferably configured to be planar. The external edge (18) of the compensation membrane (10) can have a thickening (22), which fills a ring-shaped groove (24) of the same radius in the external ring (8). The hydraulic spring can be used in particular as a primary suspension for use in rail vehicles.
IPC 1-7
IPC 8 full level
F16F 9/36 (2006.01); F16F 13/06 (2006.01); F16F 13/18 (2006.01); F16F 13/10 (2006.01)
CPC (source: EP KR US)
F16F 9/36 (2013.01 - EP US); F16F 13/10 (2013.01 - KR); F16F 13/103 (2013.01 - EP US)
Citation (examination)
- JP S62242149 A 19871022 - HONDA MOTOR CO LTD
- US 4809959 A 19890307 - HOURLIER FRANCOIS [FR]
- US 4733758 A 19880329 - DUCLOS THEODORE G [US], et al
- JP S5831736 A 19830224 - BRIDGESTONE TIRE CO LTD
- JP S6113042 A 19860121 - TOYOTA MOTOR CO LTD
- See also references of WO 02052167A1
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 02052167 A1 20020704; WO 02052167 A9 20020919; CA 2432340 A1 20020704; CN 1230635 C 20051207; CN 1481482 A 20040310; DE 10064769 A1 20020829; EP 1346167 A1 20030924; HU P0302469 A2 20031128; HU P0302469 A3 20050530; JP 2004516434 A 20040603; JP 4083012 B2 20080430; KR 100840805 B1 20080623; KR 20030062443 A 20030725; MX PA03005735 A 20030905; US 2002089102 A1 20020711
DOCDB simple family (application)
EP 0113208 W 20011115; CA 2432340 A 20011115; CN 01820988 A 20011115; DE 10064769 A 20001222; EP 01990414 A 20011115; HU P0302469 A 20011115; JP 2002553028 A 20011115; KR 20037008434 A 20030620; MX PA03005735 A 20011115; US 2366801 A 20011221