| 摘要 |
The injector of the invention comprises a diaphragm housing 1 and an inclined and hollowed shaft 2 assembled on the housing. The diaphragm housing, in two parts 5, 6, receives water without pressure. The diaphragm 3 is captive in its housing between two O-rings 4 which ensure tightness so as to form the drop. The drop received in the shaft leaves via the orifice(s) 8 on the upper part of the same and slides in the drainage groove(s) 7 which externally bleed the shaft over its length. An orifice 9 ensures the decompression of the shaft. The slope of the shaft ensures the descent of the drop in the groove. The lower hollowed part of the shaft can receive a threaded point 10 which makes possible the introduction of treatment products. It functions without pressure or mechanical or electrical means. A natural or artificial reservoir under pressure is necessary. <IMAGE>
|
