| 摘要 |
<p>In principle, there is a casing inside which is a longitudinal space accommodating a movable slide that can be displaced axially by means of a solenoid in combination with a spring that tends to locate the movable slide towards the closure position, whilst activation of the solenoid displaces the movable slide towards an open position, overcoming the resistance of said spring. The invention is characterized in that one end of the movable slide incorporates an annular end edge (10) facing a lower seat (9) that delimits the bottom part of an annular intermediate channel (8) separating the longitudinal space (2) and an internal void (6) of the casing (1), the latter further having radial holes (7) that are in communication with the exterior of the casing (1) with the annular channel (8).</p> |
