The double-acting variable-vanepump is a new type of variable pump.
双作用式变量叶片泵是一种新型变量泵。
2
This paper presented the working principle and structure of the double-action vanepump, analyzed its mechanism of variable displacement and characteristics of energy saving.
本文介绍了双作用叶片式二次元件的结构和工作原理,分析了其节能原理和特点。
3
The pump having the Angle adjustable vane is called the variable pitch vane type, and having the non-adjustable vane is called the fixed vane type.