FIELD: hydraulic excavation. SUBSTANCE: protective device of ejector suction-tube dredger has additional valve in form of flaps 6 and 8 attached to shafts 7 and 9; transmission unit in form of gears 11 kinematically connected to each other. Hydraulic cylinder 4 is installed outside body 2. Main valve is made in form of plate 4 installed on shaft 5 which is connected with one of gears 11 and lever 13. The latter is installed for interaction with hydraulic cylinder 14. Body 2 is made rectangular in cross-section. Flaps 6 and 8 are positioned toward flow motion, and in working position, they are arranged at angle to axis of body 2 for interaction with each other by means of their edges. EFFECT: higher efficiency. 2 cl, 3 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| SUCTION DREDGER SOIL-INTAKE ARRANGEMENT | 0 |
|
SU729318A1 |
| SOIL INTAKE DEVICE OF SUCTION DREDGE | 0 |
|
SU962472A1 |
| SOIL INTAKE OF SUCTION DREDGE | 0 |
|
SU1055836A1 |
| DREDGER SUCTION HEAD | 0 |
|
SU641042A1 |
| SOIL INTAKE ASSEMBLY OF SUCTION DREDGE | 0 |
|
SU732458A1 |
| SOIL-INTAKE ARRANGEMENT OF SUCTION DREDGER | 0 |
|
SU1199874A1 |
| SOIL INTAKE APPARATUS OF SUCTION DREDGER | 0 |
|
SU1025811A1 |
| SUCTION DREDGER INTAKE TIP | 0 |
|
SU800300A1 |
| SOIL INTAKE OF SUCTION DREDGE | 0 |
|
SU950864A1 |
| SOIL INTAKE DEVICE FOR SUCTION DREDGE | 0 |
|
SU1040057A1 |
