| 摘要 |
A servo valve (1) comprises a fluid inlet (50), a fluid outlet (52) and a cylindrical spool (8). The spool (8) has a surface including a curvilinear groove (11) and is mounted for rotational movement between a first position in which the surface of the spool covers at least one of the fluid outlet (52) and the fluid inlet (50) and a second position in which the groove (11) is aligned with the fluid inlet (50) and the fluid outlet (52). |
