| 摘要 |
1. Solenoid valve comprising a body (1), a stationary magnetic core (13) and a movable magnetic core (11) shiftable counter to the action of a first spring (12) under the effect of a magnetic field generated by an electrical winding (8), the movable core (11) acting on a shutter member (17) interacting with a port (5) for the passage of a fluid, and possessing elastic stop means (22 to 25) interacting with the movable core (11) in order to determine at least one intermediate stopping position of this movable core in its travel, so as to make it possible to obtain at least two different flow rates, characterized in that the elastic stop means comprise a second spring (25) and a stop piece (22) movable counter to the action of the latter, these being seated in an axial recess of one of the cores (11 or 13), and this recess being open opposite a stationary stop (27) carried by the other core. |
