| 摘要 |
The fluid distributor apparatus (12) comprises a body (30) having distribution ports (35, 37, 39, 62, 63); a spool (41) adapted for controlling said distribution ports (35, 37, 39, 62, 63) and mounted sliding in a first sliding seat (31) obtained in said body (30) and communicating with said distribution ports (35, 37, 39, 62, 63); a copying- member (45) mounted sliding and sealed in a second seat (44) obtained in said spool (41); supply means (46, 47, 48) for a controlled supplying of said fluid to said second seat (44) so that said copying-member (45) slides in a controlled way, said supply means comprising also chamber means (46) containing said fluid and communicating with said second seat (44); pushing means (47, 49, 51, 52, 53) of said fluid mounted sliding and sealed in said chamber means (46). |
