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A10VSO工作原理主體部分（參見結構剖）由傳動軸帶動缸體旋轉，使均勻分布在缸體上的七個柱塞繞傳動軸中心線轉動，通過中心彈簧將柱滑組件中的滑靴壓在變量頭（或斜盤）上。這樣，柱塞隨著缸體的旋轉而作往復運動，完成吸油和壓油動作。