| 摘要 |
<p>A piston (1) for a two-stroke crosshead engine has a number of ring grooves (2-4) for piston rings. At at least some of the rings the piston has pressure relief passages the axes of which avoid hitting the piston ring (14) at extension through the outlet openings (20). The total cross-sectional area expressed in mm<2> of the pressure relief passages associated with the individual piston ring is in the interval from D<2>/68000 to D<2>/10000, D being the cylinder diameter expressed in mm.</p> |
