Piping arrangement for windshield wiper system for motor vehicle, has heating pipe including feeding and return pipes provided side-by-side with respect to washing liquid delivery pipe

摘要

A heating pipe (20) includes a feeding pipe (22) and a return pipe (24) provided side-by-side with respect to a delivery pipe (10). The delivery pipe feeds washing liquid from a container (14) to a washing nozzle (12). The feeding and return pipes are connected to an engine cooling water circuit (26), and together with the delivery pipe, form a three-core tubing. Engine cooling water is circulated around the delivery pipe, heating the washing liquid.