| 摘要 |
A solenoid valve arrangement, in particular for normally open (NO) and normally closed (NC) operation, has three ports (A, R, P), which are grouped together on one end face of the housing. There are two coaxial valve seats (8, 11) situated opposite one another at a distance from one another, between which an armature (3) is arranged in such a way as to be axially displaceable counter to a spring force by magnetic forces, within a cylindrical space surrounded by a coil former. The end faces of the armature (3) form, together with the associated valve seats (8, 11), two valves (4, 8, 11, 12) which can be operated alternately, one valve seat (8) being assigned within the coil space, an insert (6) fixed to the housing. The third port (P) is connected to a free passage through the magnet coil. The passage is here sealed off from the second port (R) in both positions of the armature and, in one position of the latter, it is connected to the first port (A) via the open valve seat (8). <IMAGE>
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