EP 4244499 A1 20230920 - ELASTIC COIL SPRING, DAMPING SYSTEM AND ASSOCIATED MANUFACTURING METHOD
Title (en)
ELASTIC COIL SPRING, DAMPING SYSTEM AND ASSOCIATED MANUFACTURING METHOD
Title (de)
ELASTISCHE SCHRAUBENFEDER, DÄMPFUNGSSYSTEM UND ZUGEHÖRIGES HERSTELLUNGSVERFAHREN
Title (fr)
RESSORT ÉLASTIQUE À SPIRES, SYSTÈME D'AMORTISSEMENT ET PROCÉDÉ DE FABRICATION ASSOCIÉS
Publication
Application
Priority
- FR 2011725 A 20201116
- EP 2021081853 W 20211116
Abstract (en)
[origin: WO2022101503A1] The invention relates to an elastic spring (1) comprising a body (10) forming coils (100) based on at least one metal. The body (10) has a hollow core (11) extending at least along the coils (100), between an inlet (101) and an outlet (102) of the body (10), the hollow core (11) defining a space for a heat transfer fluid to flow inside the coils (100), the spring (1) being configured such that a heat transfer fluid enters the hollow core (11) through the inlet (101) of the body (10), flows through the hollow core (11) and exits the hollow core (11) through the outlet (102) of the body (10). Since the spring (1) is capable of being tempered by a heat transfer fluid flowing inside its coils (100), temperature decay of its mechanical properties is limited or avoided, especially in a thermally constrained environment.
IPC 8 full level
F16F 1/02 (2006.01); F16F 1/04 (2006.01); F16F 1/32 (2006.01); F16F 1/34 (2006.01); F16F 3/02 (2006.01)
CPC (source: EP)
F16F 1/04 (2013.01); F16F 2222/025 (2013.01); F16F 2224/04 (2013.01); F16F 2228/002 (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)
WO 2022101503 A1 20220519; EP 4244499 A1 20230920; FR 3116313 A1 20220520; FR 3116313 B1 20230331
DOCDB simple family (application)
EP 2021081853 W 20211116; EP 21811048 A 20211116; FR 2011725 A 20201116