Two design strategies that three-way valve control unsymmetrical cylinder and four way valve control symmetrical cylinder were analyzed from principle and system structure aspects .

对 船用 舵机泵 控 系统中位置 控制 单元 的 三通阀 控制非对称缸和四通 阀控制对称缸的两种设计方案进行了理论分析和系统结构分析。