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1. (WO2017097767) CLUTCH SYSTEM COMPRISING A TORSIONAL DAMPER WITH TWO STIFFNESSES AND PROPULSION UNIT COMPRISING SUCH A SYSTEM
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/2017/097767 International Application No.: PCT/EP2016/079898
Publication Date: 15.06.2017 International Filing Date: 06.12.2016
IPC:
F16F 15/123 (2006.01) ,F16F 15/134 (2006.01)
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16
ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
F
SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
15
Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
10
Suppression of vibrations in rotating systems by making use of members moving with the system
12
using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon
121
using springs as elastic members, e.g. metallic springs
123
Wound springs
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16
ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
F
SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
15
Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
10
Suppression of vibrations in rotating systems by making use of members moving with the system
12
using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon
131
the rotating system comprising two or more gyratory masses
133
using springs as elastic members, e.g. metallic springs
134
Wound springs
Applicants:
VALEO EMBRAYAGES [FR/FR]; 81 avenue Roger Dumoulin 80009 Amiens cedex 2, FR
Inventors:
MEROU, Patrice; FR
Agent:
CARDON, Nicolas; FR
Priority Data:
156198908.12.2015FR
Title (EN) CLUTCH SYSTEM COMPRISING A TORSIONAL DAMPER WITH TWO STIFFNESSES AND PROPULSION UNIT COMPRISING SUCH A SYSTEM
(FR) SYSTÈME D'EMBRAYAGE COMPORTANT UN AMORTISSEUR DE TORSION À DEUX RAIDEURS ET ENSEMBLE DE PROPULSION INTÉGRANT UN TEL SYSTÈME
Abstract:
(EN) The invention relates to a clutch system (10) comprising, in series: a dual-mass flywheel (22), a clutch friction element (24), and a torsional damper (26). The springs (46, 48) of the torsional damper (26) are such that, over a first portion of the range of angular displacement of the torsional damper (26) forming at least 1/4 of the range of angular displacement of the torsional damper (26), the torsional damper (26) has an angular stiffness lower than or equal to a first value K 3, and such that over a second portion of the range of angular displacement forming at least 1/4 of the range of angular displacement of the torsional damper (26), the torsional damper has an angular stiffness which is higher than or equal to a second value K 4, K 4 being higher than 2 K 3.
(FR) Un système d'embrayage (10) comporte en série: un double volant amortisseur (22), une friction d'embrayage (24) et un amortisseur de torsion (26). Les ressorts (46, 48) de l'amortisseur de torsion (26) sont tels que sur une première portion de la plage de débattement angulaire de l'amortisseur de torsion (26) constituant au moins 1/4 de la plage de débattement angulaire l'amortisseur de torsion (26), l'amortisseur de torsion (26) présente une raideur angulaire inférieure ou égale à une première valeur K3, et que sur une deuxième portion de la plage de débattement angulaire constituant au moins 1/4 de la plage de débattement angulaire de l'amortisseur de torsion (26), l'amortisseur de torsion présente une raideur angulaire supérieure ou égale à une deuxième valeur K4, K4 étant supérieur à 2 K3.
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JP, KE, KG, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: French (FR)
Filing Language: French (FR)
Also published as:
EP3387289