| 摘要 |
The invention relates to a piston ring (2) having wear indication (42), comprising a piston ring body (4). The piston ring body has an outer surface (6), an upper ring flank (8), and a lower ring flank (10). The outer surface (6) of the piston ring body (4) is provided with a structure (14) that protrudes outward by a height (h). A wear protection layer (12) is applied to the outer surface (6), which wear protection layer covers the protruding structure (14). The wear protection layer (12) has a thickness (D) that is reduced by the height (h) of the protruding structure in the region of the protruding structuring (14). |
