以阀式径向柱塞定量泵为基泵设计了控制进油阻力的变量机构。
This article designed a displacement setting mechanism by the fixed quantity of valve model radial column piston as base pump.
最后以恒压泵变量机构为实例，对YB - 20ah型柱塞式恒压主量泵变量机构进行了寻优设计，并取得了良好的效果。
Finally, taking the constant pressure pump as example, we make YB-20AH axial piston pump with constant pressure optimized by this method.
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