| 摘要 |
<p>PURPOSE: A nitrogen gas injector for a hydraulic breaker is provided to control the injection pressure of nitrogen gas when the nitrogen gas is injected into a back head and an accumulator of a hydraulic breaker. CONSTITUTION: A nitrogen gas injector for a hydraulic breaker comprises a main body, a gas cylinder connector (20), an opening and closing valve (30), a hydraulic breaker connector (40), a pressure control valve (50), a relief valve (60), and a pressure gauge (70). A gas path is formed in the main body. The gas cylinder connector is arranged on one end of the gas path. The opening and closing valve opens and closes the gap between one end of the gas path and the gas cylinder connector. The hydraulic breaker connector, the pressure control valve, and the relief valve are coupled to the main body and are connected to the gas path. The pressure gauge is connected to the other end of the gas path.</p> |
