SELF BALANCE PRESSURE INCREASING TYPE HIGH-PRESSURE VESSEL

摘要

PURPOSE:To improve the pressure increasing performance of a pressure medium in the high-pressure vessel by a method wherein a pressure increase piston is pushed into the high-pressure vessel after the internal pressure of the high-pressure vessel is increased to the maximum pressure of a pressure medium supplying source. CONSTITUTION:A packing 11, which limits the effecting area of a pressure applied on the contacting surface of the pressure increase piston 4 when the pressure increase piston 4 is contacted closely to the inside of a lid 3, is provided. When the internal pressure of the high-pressure vessel is low, the pressure increase piston 4 is adhered to the lid 3. When the internal pressure of the high- pressure vessel has increased by a high pressure relief valve 14 to a pressure near the maximum pressure of the pressure medium supplying source, the pressure increase piston 4 is pushed into the high-pressure vessel to increase the internal pressure further, therefore, the pressure increasing performance of the pressure medium in the high-pressure vessel may be increased.