Inventors:
Jean-Marie Jacquet - Le-Palais-sur-Vienne, FR
Frederick G. Wietig - East Aurora NY, US
Assignee:
Sulzer Metaplas GmbH - Bergisch Gladbach
International Classification:
F16J 9/26
US Classification:
277442, 427577, 428212, 428408, 428698
Abstract:
A piston ring () is covered at least partially with a layered structure (). The layered structure () comprises: —a first intermediate layer () comprising at least one element of group IVB, group VB or group VIB; —a second intermediate layer () deposited on top of the first intermediate layer () and comprising a diamond-like nanocomposite composition; —a diamond-like carbon layer () deposited on top of the second intermediate layer ().