Influence of Compressibility of Fluid on Force of Vane in High Pressure Intra-Vane Type Pump

摘要

Previously, compressibility of fluid is ignored when calculating dynamic characteristics of vane pump. When vane pump working in very high pressure, fluid's compressibility shouldn't be ignored. In the case of considering compressibility of fluid, the model of contact reaction-force in normal line direction between vane and stator is built in high pressure intra-vane type pump, and the variation curve of contact reaction-force is obtained by computer simulation which is closer to actual condition than former articles. When a vane moves from long radius to outlet area, variation curve of contact counterforce has a variant sharp angle, which more actual reflects the variation of contact reaction-force between vane and stator. At last, the curve of variant sharp angle is analyzed and solution is provided for the best dynamic characteristics in intra-vane type pump.