| 摘要 |
<p>A rotary spool (1) includes openings (5) emerging on the lateral face (12) in communication with the inlet (6) and openings (5) emerging on the lateral face (13) communicating with the outlet (7). These openings (5) file past a port (4) allowing passage to and from a cylinder (2)/piston (3) assembly. <IMAGE></p> |
