Blower Air Path Curvature Reduces Pressure Loss

The patent applies curvature by replacing the sharp angular transition between rectangular and round cross-sections with a smooth curved transition. The air path includes a curved surface that gradually changes the cross-sectional shape, eliminating abrupt corners and edges. This curved geometry reduces flow separation and turbulence, thereby minimizing pressure loss while maintaining structural simplicity.

The patent ensures continuity of useful action by creating a seamless, continuous air path without abrupt interruptions or changes. The curved surface provides a continuous transition zone that maintains smooth airflow throughout. This continuous geometry prevents sudden flow disturbances and ensures efficient air discharge from the fan to the duct connection.

The curved transition surface reduces turbulent flows and associated noise by eliminating sharp angular changes in the air path. The smooth curvature maintains laminar flow characteristics longer, reducing vortex generation and pressure fluctuations that cause noise. This design achieves quieter operation while remaining manufacturable through standard forming processes.

The continuous curved geometry ensures uninterrupted smooth airflow from the rectangular fan outlet to the round duct connection. This continuity prevents sudden flow disturbances that generate turbulence and noise. The seamless transition maintains consistent flow patterns, reducing aerodynamic noise while preserving manufacturing feasibility.

The curved transition surface maximizes the use of available space by providing an efficient three-dimensional path. The curvature allows the air path to change direction and cross-sectional shape smoothly within a compact volume, achieving the necessary transition length without increasing the overall blower size. This curved geometry maintains pressure efficiency while preserving compactness.

The patent utilizes three-dimensional spatial arrangement by transitioning from a two-dimensional planar view to a three-dimensional curved surface. The curved air path extends into the third dimension, allowing a longer effective flow path within a compact footprint. This dimensional approach enables sufficient transition length for pressure efficiency while maintaining compact overall dimensions.