| 摘要 |
<p>The system (2) has a pressure intensifier (16) connected to a seal carrier (10) and provided with a cylindrical tube (18) and a piston (4) having two heads with different diameters for separating the cylindrical tube into two chambers (28, 29). One of the chambers is in communication with fluid. The latter chamber is filled with gas (35) and adapted to collect a part of the former chamber during displacement of a piston (24) so as to ensure pressure (P2) at the fluid in contact with a seal (6), where the pressure is greater than another pressure (P3) applied to an outer ring (8).</p> |
