Screen Wiper With Non-Constant Orifice Spacing

The patent applies local quality by varying the spacing between spraying orifices based on their specific position on the wiper blade. Orifices are spaced closer together at positions that travel shorter distances during the wiping cycle and spaced farther apart at positions that travel longer distances. This localized adjustment of spacing ensures that each orifice covers a substantially equal area on the windshield, achieving uniform cleaning efficiency across the entire surface while maintaining a relatively simple manufacturing process.

The patent applies dynamics by making the spacing between orifices variable rather than constant. The spacing dynamically adapts to the trajectory characteristics of each orifice position on the wiper blade. This dynamic spacing arrangement allows the system to achieve uniform cleaning coverage across the windshield without requiring an excessive number of orifices, thus avoiding unnecessary device complexity while maintaining high cleaning efficiency.

The patent addresses this contradiction by applying local quality to the orifice spacing arrangement. Each orifice is positioned and spaced according to its specific location on the wiper blade and the distance it travels during the circular or elliptical trajectory. Orifices at positions that cover shorter distances are spaced closer together, while orifices at positions covering longer distances are spaced farther apart. This localized compensation ensures that despite the varying path lengths inherent in circular or elliptical motion, each orifice contributes equally to the liquid distribution, achieving uniform coverage across the windshield.