The binnary vane pump forming sealed chambers with vanes, stator, and rotor, where the volume undergoes periodic changes during operation, enabling the suck and discharge of fluids. The vanes, typically driven by centrifugal and hydraulic forces, conform to the inner surface of the stator. The stator's lift determines the pump's displacement, the curvature characteristics of the profile determine the blade slip rate, contact stress between the vanes and inner surface, and the volume change rate of the sealed chamber. These factors determine the pump's volumetric efficiency, cavitation, hydraulic and mechanical vibrations, mechanical efficiency, and wear life.

In the industry, a common approach involves directly defining the stator cavity contour using specific function curves, representing the motion pattern of a single geometric point. However, due to the complexity of the vane's end shape and its dynamically changing intersection points, there is significant deviation between the actual motion pattern of the vane and the design pattern. This leads to distortion in vane motion control, resulting in resonance, NVH (Noise, Vibration, Harshness), wear, and other failures.

Based on APT's Real Motion® profile algorithm integrates custom vane motion functions with the contour functions of the vane's end shape through composite integration to obtain the stator cavity contour curve. This ensures precise alignment between the vane's motion pattern and the design pattern. It enhances the accuracy of vane motion control and analysis, providing greater flexibility in designing the vane's end shape.

APT's design software can solve various industry profiles and has developed several new profiles based on market feedback. Depending on actual applications and technical requirements, the software first determines the weights of target characteristics (efficiency, NVH, wear life). It then selects a specific profile type, conducts multi-parameter optimization after initial design, and ultimately achieves customized optimization for component motion characteristics, contact properties, pump volumetric efficiency, pressure pulsation, cavitation characteristics, etc.

Various types of profiles developed by APT have been successfully applied in the automotive and aerospace industries. APT can also customize entirely new specialized profiles according to specific customer or technical requirements.