| 摘要 |
A device for heating liquid for one or several washer systems. The present invention relates to a device for heating liquid for one or several washer systems, e.g. a wind screen washer system, a head lamp washer system, a rear screen washer system, etc, including a heat exchanger, preferably connected into a return pipe from the engine of a car to the cooling system of the engine. An object of the present invention is to accomplish a device for heating of washer liquid with high efficiency although a very simple design. According to the present invention such a device is characterized by a heat exchanger comprising of a central flow through means connected into said return pipe and consisting of a material of high thermal conductivity, said means being of short length, and of a further flow through means connected into the piping the washer system and consisting of a material of high thermal conductivity and in that a valve means is arranged between the heat exchanger, the washer nozzle, the washer liquid container and a pump of the washer system, said valve means prevents return flow of washer liquid to the heat exchanger.
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