| 摘要 |
A piston includes a spring acting between the piston crown and a connecting rod so as to bias the connecting rod away from the crown of the piston. The spring may include a pair of disc springs supported at their edge portions. The support may be a substantially annular support including a pair of rings fixed to the edge portions of the disc springs and an annular band that engages the rings and permits relative movement between the band and the rings.
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