EP 2614269 A1 20130717 - VIRTUALLY OIL-FREE SHOCK ABSORBER HAVING HIGH DISSIPATIVE CAPACITY
Title (en)
VIRTUALLY OIL-FREE SHOCK ABSORBER HAVING HIGH DISSIPATIVE CAPACITY
Title (de)
PRAKTISCH ÖLFREIE STOSSDÄMPFER MIT HOHER DISSIPATIVER KAPAZITÄT
Title (fr)
AMORTISSEUR A HAUT POUVOIR DISSIPATIF ET PRATIQUEMENT SANS HUILE
Publication
Application
Priority
- FR 1057096 A 20100907
- EP 2011065488 W 20110907
Abstract (en)
[origin: WO2012032088A1] The invention relates to a virtually oil-free shock absorber having high dissipative capacity, comprising a rod/piston assembly (2) sliding inside a tubular body (3), said rod/piston assembly (2) defining, together with the tubular body, two working chambers (11A, 11B) containing hydraulic fluid, each working chamber (11A, 11B) being in constant communication with an adjoining chamber (12A, 12B) containing a heterogeneous energy-absorbing/dissipating structure (14, 15) consisting of at least one capillary-porous matrix (14) and an associated liquid (15) with respect to which said matrix is lyophobic. According to the invention, the two adjoining chambers (12A, 12B) are annular chambers provided in the wall of the tubular body (3), on either side of a central portion (28) of said tubular body, each of said annular adjoining chambers (12A, 12B) housing a flexible casing (13A, 3B) containing the associated heterogeneous structure (14, 15), and each of the two working chambers (11A, 11B) is further in communication, via a respective non-return means (22A, 22B), with an associated compensation chamber (17A, 17B), which is arranged in the end of the tubular body (3) in question, said compensation chambers (17A, 17B) ensuring the continuity of the hydraulic fluid when the rod/piston assembly (2) moves inside the tubular body (3).
IPC 8 full level
CPC (source: EP KR US)
F04B 1/00 (2013.01 - EP US); F16F 9/00 (2013.01 - KR); F16F 9/003 (2013.01 - EP US); F16F 9/02 (2013.01 - KR); F16F 9/065 (2013.01 - EP US); F16F 9/32 (2013.01 - KR)
Citation (search report)
See references of WO 2012032088A1
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
DOCDB simple family (publication)
FR 2964434 A1 20120309; FR 2964434 B1 20120824; CN 103119320 A 20130522; CN 103119320 B 20150826; EP 2614269 A1 20130717; JP 2013536930 A 20130926; JP 5667298 B2 20150212; KR 101506020 B1 20150325; KR 20130052672 A 20130522; RU 2013115380 A 20141020; RU 2547023 C2 20150410; US 2013189138 A1 20130725; US 8925697 B2 20150106; WO 2012032088 A1 20120315
DOCDB simple family (application)
FR 1057096 A 20100907; CN 201180042906 A 20110907; EP 11754405 A 20110907; EP 2011065488 W 20110907; JP 2013527589 A 20110907; KR 20137008805 A 20110907; RU 2013115380 A 20110907; US 201113820977 A 20110907