EP 4363739 A1 20240508 - HYDRAULIC SHOCK ABSORBER FOR A MOTOR VEHICLE SUSPENSION
Title (en)
HYDRAULIC SHOCK ABSORBER FOR A MOTOR VEHICLE SUSPENSION
Title (de)
HYDRAULISCHER STOSSDÄMPFER FÜR EINE KRAFTFAHRZEUGAUFHÄNGUNG
Title (fr)
AMORTISSEUR HYDRAULIQUE DE SUSPENSION DE VÉHICULE AUTOMOBILE
Publication
Application
Priority
- FR 2107126 A 20210701
- FR 2022050929 W 20220516
Abstract (en)
[origin: WO2023275447A1] The invention relates to a hydraulic shock absorber (10) comprising: - a compression piston (23) provided with a first fluid-passage groove (28) positioned facing the first leakage passage (19) in a rest position, the compression piston (23) being able to slide radially towards the rod (13) of the main piston (12) under the effect of a fluid pressure during a compression phase in order to progressively close the first leakage passage (19), and - an expansion piston (31) equipped with a second fluid-passage groove (37) positioned facing the second leakage passage (20) when the expansion piston (31) is in a rest position, the expansion piston (31) being able to slide radially towards the rod (13) of the main piston (12) under the effect of a fluid pressure during an expansion phase in order to progressively close the second leakage passage (20).
IPC 8 full level
F16F 9/512 (2006.01); F16F 9/32 (2006.01); F16F 9/34 (2006.01); F16F 9/348 (2006.01)
CPC (source: EP)
F16F 9/5126 (2013.01); F16F 9/3214 (2013.01); F16F 9/3405 (2013.01); F16F 9/3481 (2013.01)
Designated contracting state (EPC)
AL 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 RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
FR 3124837 A1 20230106; FR 3124837 B1 20231027; EP 4363739 A1 20240508; WO 2023275447 A1 20230105
DOCDB simple family (application)
FR 2107126 A 20210701; EP 22731736 A 20220516; FR 2022050929 W 20220516