¡El well-designed, precision-machined arc blade reduces the compressive stress of the blade on the curve inside the stator and improves the service life of the stator and blade ¡El stator adopts an advanced high-power impact-free transition curve to give the blades good motion and force state. This ensures that there is a gap between the leaf and the stator Good contact and makes flow loss, pressure and flow ripple for minimum noise and longer life ¡El side panels are hydraulically balanced for better volumetric efficiency Key parts selected of high-quality materials and advanced heat treatment process oil pump Overall reliability is further improved ¡El use of plug-in structure of the main internal parts made into a component form of the pump core replacement can be completed in a few minutes Good interchangeability Repair method.