| 摘要 |
The body (100) of the solenoid valve is made as a single component from injected plastic, leaving a chamber for a moving magnetic core (18), an annular chamber receiving the winding (14) of the electromagnet, a chamber to receive a valve (4) controlling the inlet channels (1), dispensing channels (2) and discharge channels (3) for the fluid. A chamber for receiving a nozzle (21) interacting with the valve (4) and an annular cylindrical part (18) forming the winding core (14). A magnetic casing and one of the poles (105) of the electromagnet are set into the injected material and form a mechanical reinforcement of the body (100). A magnetic core (19) which is fixed but which has an adjustable axial position attracts the moving core (18) when the electromagnet is excited. A spring (7) arranged axially in the moving core (18) returns the latter to the rest position, where it holds the valve (4) in the closed position by means of fingers (8) constantly in contact with this valve. This arrangement with a monobloc body (100) allows for inexpensive and precice manufacture. <IMAGE>
|
