| 摘要 |
<p>An assembly comprising first and second relatively movable coaxial cylindrical bodies, such as for use in a double acting piston and cylinder arrangement, the two bodies having opposed first and second cylindrical surfaces respectively. The assembly includes a sealing device having a V-shaped annular chamber with diverging flanks opening into the first cylindrical surface with a tip being formed at the junction of these flanks. A sealing ring of substantially triangular cross-section, is located in the annular chamber and its two diverging side walls diverge at a smaller angle of divergence than the flanks of the annular chamber, so that the sealing ring is tiltable from a rest position about the tip of the annular chamber, and a third wall of the sealing ring is positioned in opposed facing relationship to the second cylindrical surface, and is preferably slightly spaced therefrom, the third wall sealingly contacting the second cylindrical surface only in a tilted position of the sealing ring.</p> |
