| 摘要 |
<p>PCT No. PCT/FR88/00097 Sec. 371 Date Aug. 29, 1988 Sec. 102(e) Date Aug. 29, 1988 PCT Filed Feb. 22, 1988 PCT Pub. No. WO88/06250 PCT Pub. Date Aug. 25, 1988.The space within the interior cavity (7) of the piston (1) limited by the partially spherical head (5) of the connecting rod (6) is filled with a viscous, pasty or plastically ductile fluid (13), practically incompressible at the operating temperatures and pressures of the piston (1), the diameter (D) of the cylindrical support (8) which limits laterally the cavity (7) being very slightly greater than the diameter (d) of the partially spherical head (5) of the connecting rod (6) so that the clearance during operation between said support (8) and said head (5) is sufficiently minor to prevent any leakage of said fluid (13) from said space at the operating temperatures and pressures of the piston.</p> |
