| 摘要 |
PURPOSE: To provide a submerged driving device dispensing with a return conduit by alternately driving a pair of work cylinders by the ambient pressure water in water to supply the generated energy to a submerged tool, and then discharging the pressure water to the ambient water. CONSTITUTION: This device for driving a submerged tool driven by hydraulic fluid is basically formed of work cylinders 1, 2, a storage cylinder 19, and selector valves 17, 18 for supplying and discharging the pressure water to and from the work cylinders 1, 2. When one selector valve 17 is in the switched state, the ambient pressure water in water is supplied to the space 5 of the work cylinder 1 through a feed conduct 13 to press the piston 3 of the cylinder 1, and the liquid in the pressurized space 7 of the cylinder 1 introduces an energy to the submerged tool through a check valve 9. At this time, the ambient pressure water is supplied to the pressurized space 8 of the other cylinder 2. Both the cylinders are alternately driven.
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