| 摘要 |
<p>A piston (1, 5 1) includes a piston body (2, 52) which is surrounded by a 5 media side (3, 53), by an oppositely disposed drive side (4, 54) and, at the peripheral side, by a piston jacket (5, 55), wherein the piston jacket (5, 55) forms a connection between the media side (3, 53) and the drive side (4, 54). The piston jacket (5, 55) is arranged about a piston axis (9), wherein the piston jacket (5, 55) is connected to the piston body (2, 52) via a web 10 element (26, 76) so that a peripheral groove (23, 73) is formed on the media side (3, 53) between the piston body (2, 52) and the piston jacket (5, 55). A cover element (1 3, 63) is arranged at the media side (3, 53), and has a drive side surface (29, 79) which lies directly on the media side surface (28, 78) of the piston body (2, 52) 15 Fig. 1</p> |
