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1. (WO2006125683) PISTON RING HAVING HARD MULTI-LAYER COATING
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2006/125683    International Application No.:    PCT/EP2006/060346
Publication Date: 30.11.2006 International Filing Date: 01.03.2006
IPC:
C23C 28/00 (2006.01), F16J 9/26 (2006.01)
Applicants: NV BEKAERT SA [BE/BE]; Bekaertstraat 2, B-8550 Zwevegem (BE) (For All Designated States Except US).
JACQUET, Jean-marie [BE/BE]; (BE) (For US Only).
WIETIG, Frederick G. [US/US]; (US) (For US Only)
Inventors: JACQUET, Jean-marie; (BE).
WIETIG, Frederick G.; (US)
Agent: MESSELY, Marc; Bekaertstraat 2, B-8550 Zwevegem (BE)
Priority Data:
05104517.7 26.05.2005 EP
Title (EN) PISTON RING HAVING HARD MULTI-LAYER COATING
(FR) BAGUE DE PISTON POURVUE D'UN REVETEMENT MULTICOUCHE DUR
Abstract: front page image
(EN)A piston ring (22) is covered at least partially with a layered structure (30). The layered structure (30) comprises: - a first intermediate layer (32) comprising at least one element of group IVB, group VB or group VIB; - a second intermediate layer (34) deposited on top of the first intermediate layer (32) and comprising a diamond-like nanocomposite composition; -a diamond-like carbon layer (36) deposited on top of the second intermediate layer (34).
(FR)L'invention porte sur une bague de piston (22) recouverte au moins partiellement d'une structure en couches (3). La structure en couches (30) comprend: une première couche intermédiaire (32) comprenant au moins un élément du groupe IVB, du groupe VB ou du groupe VIB; une seconde couche intermédiaire (34) déposée sur le dessus de la première couche intermédiaire (32) et comprenant une composition nanocomposite de type diamant; une couche de carbone de type diamant (36) déposée sur le dessus de la seconde couche intermédiaire (34).
Designated States: AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BW, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, LY, MA, MD, MG, MK, MN, MW, MX, MZ, NA, NG, NI, NO, NZ, OM, PG, PH, PL, PT, RO, RU, SC, SD, SE, SG, SK, SL, SM, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, YU, ZA, ZM, ZW.
African Regional Intellectual Property Organization (BW, GH, GM, KE, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HU, IE, IS, IT, LT, LU, LV, MC, NL, PL, PT, RO, SE, SI, SK, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG).
Publication Language: English (EN)
Filing Language: English (EN)