Liquid transporting and heating device for use in supply and/or distribution system of windshield washer liquid to be projected on car pane, has portion arranged to maximize heat transfer between heater and liquid circulating in pipe

摘要

The device (10) has a wall (21) defining a liquid circulation pipe, where a heater (24) is embedded. An inner face (34) of the pipe includes, in cross section, a portion (35) having a shape different from that of another portion (36). The former portion is arranged to maximize heat transfer between the heater and liquid adapted to circulate in the pipe. The former portion is inserted between the heater and the latter portion. The former portion is curved in a convex manner, and the latter portion is curved in a concave manner.