| 摘要 |
FIELD: process engineering.SUBSTANCE: invention relates to drainage facilities and may be used for cleaning of said facilities. Proposed rotary nozzle comprises bearing parts and third revolving part. Screw pump drives said revolving part and is engaged with inner surface by gearing. Said third part has outer helical elastic groove. Bearing parts have outer lengthwise resilient plates. Central feed pipe features bores at the third part front and rear arranged mirror-like on pipe surface.EFFECT: higher quality of operation.2 cl, 1 dwg |
