| 摘要 |
FIELD: machine building. ^ SUBSTANCE: hydrobarodynamic device for cleaning of inner surface of pressure pipelines contains a cuff, a hollow stock and a cavitator-limiter of stroke. Hollow stock is provided with sprung cup-shaped cylinder covering openings of cylindrical work chamber being an extension of hollow stock and exceeding its diameter step-like. Sprung cup-shaped cylinder, its bottom and work chamber step form control chamber connected to stock cavity and then to cuff cavity, and work chamber bottom is connected to cavitator-limiter of stroke via adaptor. ^ EFFECT: higher efficiency and improved operating reliability of the device. ^ 1 dwg |
