A device that uses hydraulic pressure to move a piston in a cylinder, and does mechanical work by pushing and retracting a rod attached to the piston. It is widely used as an actuator (the operating part of an automatic control system) in hydraulic jacks, extruders, construction machinery, agricultural machinery, etc. Source : Heibonsha Encyclopedia About MyPedia Information |
シリンダー中のピストンを油圧により移動させ,ピストンに固定された棒の押出・引込運動で機械的仕事をさせる装置。アクチュエーター(自動制御系の操作部)として広く使われており,油圧ジャッキ,押出機,建設機械,農業機械などに利用。
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