| 摘要 |
<p>Known electromagnetic switch valves have a large iron-free gap in the magnetic circuit, the magnet armature being arranged in a fluid passage. In contrast, the new switch valve has the features that the passage (10) and the magnet armature (9) are matched in diameter in such a way that there is only a very small gap between them, that the magnet armature (9) has a recess (15) which runs in the longitudinal direction and into which is inserted a plastic body (16) which has two elastomer sealing bodies (18, 19) in its central part (17), the central part (17) being connected by ribs (20) to an outer part (21), giving rise to passages (22) in the plastic body (16). It is thereby possible to increase the range of applications of the switch valve or reduce the magnet coil (3) in size and in its number of turns.</p> |
