US Patent 7429004 Nozzle structure in washer fluid ejection apparatus

At a time of forming lip portions in upper and lower edge portions of an ejection port in a protruding manner, a nozzle for ejecting a washer fluid of a washer fluid ejection apparatus in a diffusion manner is structured such that a step surface is formed on an inner side surface such that protruding amounts of the lip portions are set to the same length with a protruding tip portion in a washer fluid ejection side of the lower lip portion positioned lower than a lower side edge portion of the ejection port. Accordingly, it is possible to make the ejected washer fluid substantially unaffected by the air flow during vehicle movement.