| 摘要 |
An atomizing nozzle device (10) comprises a housing (12), in which an inner chamber (32) is defined. Fluid is introduced into the chamber (32) and is discharged therefrom through an orifice (26) of a metallic screw cap (24) of the device. Within the chamber (32) a stem (34) is arranged, which stem (34) is connected to a closing head (44) cooperating with the orifice (26) through a rod (42). A spring (40) acts on the stem (34) for causing the head (44) to close the orifice (26) and consequently prevent the discharge of fluid from the device (10). A solenoid coil (46) is provided and supplied with a current through a current path in which a switch contact is established through the cooperating closing head (44) and the end cap (24). By the supply of an energizing current to the solenoid coil (46), the stem (34) is caused to move causing the closing head (44) to move relative to the orifice (26) for opening the orifice and consequently discharging fluid from the nozzle device. By the movement of the closing head (44) relative to the cap (24), the current supply to the solenoid coil is interrupted resulting in that the spring (40) forces the closing head (44) to close the orifice (26). Through the establishment and interruption of the current path to the solenoid coil, a self-controlled vibrating-type nozzle device is provided. |
