| 摘要 |
The invention relates to a precompression system for placing between a pump and a discharge nozzle that are connected by a conduit debouching in a space. The system comprises a precompression valve movable between a closing position and a release position and biased to the closing position by spring means. In accordance with the invention the space is connected to the pump and the conduit is connected to the discharge nozzle. The spring means may be integrated in the precompression valve, for instance as a result of the precompression valve and the spring means being constituted by a resiliently flexible and preferably domed diaphragm. The space may be annular, may surround the end of the conduit and may be bordered by a cylindrical sleeve. The invention further relates to a spraying device comprising a pump, means connected to the suction side of the pump for supplying a fluid, a discharge nozzle connected to the compression side of the pump and a precompression system as disclosed above arranged between the pump and the discharge nozzle. Finally, the invention relates to an assembly constituted by a container and such a spraying device. |
