BREATHER PIPE STRUCTURE FOR A LIQUID REDUCTANT STORAGE TANK

摘要

In the provided breather pipe structure for a liquid reductant storage tank, the supply of the liquid reductant is not impeded even if the breather pipe is blocked due to the liquid reductant having frozen. In the provided structure, a breather pipe (20) that takes in and expels air is attached to the top of a liquid reductant storage tank (10) that stores a liquid reductant (5). The bottom end (20c) of the breather pipe (20) inside the liquid reductant storage tank (10) is provided alongside an engine cooling-water pipe (16) also provided inside the liquid reductant storage tank (10).