| 摘要 |
PURPOSE: A hydraulic breaker for protecting idle blowing between a piston and a cylinder is provided to convert with the existing hydraulic breaker. CONSTITUTION: A hydraulic breaker for protecting idle blowing comprises a hollow cylinder(100), a piston(200), a tool(300), a control valve(400) and a relief valve(230). The piston moves between a lifting position(S3), a blowing position(S2) and an idle position(S1) of the cylinder according to working pressure. The tool is hit with the piston. The control valve controls the working pressure. A relief valve controls the flow rate of working fluid. |
