The limit-type pressurizing device of piston ejection of this creation,System include: a cylinder block,One intake valve,One gas bleeder valve,One regulating valve,One pressure sensor,An and control circuit； Wherein,Cylinder block ties up to its one end that transfer port is arranged and is equipped with a perforation,The piston of its inside be then equipped with one it is corresponding penetrate perforation wear axis,This, which is protruded into, for correspondence equipped with one on the outside of the what cylinder block wears the stop part at axis predetermined stroke； The Air sac cover what that entire pressurisation device can pass through regulating valve setting external counterpulsation apparatus inflates the Hou pressure to be kept,And by control circuit in a manner of interaction switching intake valve and relief valve ON/OFF,The piston reciprocating displacement in cylinder block is enabled,The charge/discharge gas effect for reaching incremental pressurization or loosening； It in stop part and can even wear under the barrier effect of axis,When piston being allowed to reach pressure stroke least significant end,Still retain a cushion space with the cylinder section tail end wall surface of cylinder block,Prevent piston from trembleing with relatively more positive reliable means.本創作之活塞推頂限位式加壓裝置，係包括：一氣缸體、一進氣閥、一洩氣閥、一調節閥、一壓力感測器，以及一控制電路；其中，氣缸體係在其設置輸氣孔之一端設有一穿孔，其內部之活塞則設有一對應穿入穿孔的穿軸，於該氣缸體外側設有一供對應伸入該穿軸預定行程處的擋止件；整體加壓裝置可透過調節閥設定體外反搏裝置之氣囊套於充氣後欲保持的壓力，以及由控制電路以交互切換進氣閥及洩壓閥開/關的方式，令氣缸體內之活塞往復位移，達到循序漸進加壓或放鬆的充/放氣效果；甚至可在擋止件及穿軸之阻擋作用下，讓活塞到達加壓行程最末端時，仍與氣缸體之汽缸區段尾端壁面保留一緩衝空間，以相對更為積極可靠之手段防止活塞顫動。
