| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a tank heat insulating structure preventing freezing of urea water in a tank bottom at low cost and with economy. <P>SOLUTION: Heat insulating material 15 is provided at the bottom 16 of a tank body 11 for storing a liquid reducing agent so that only the bottom 16 is covered with the heat insulating material 15. <P>COPYRIGHT: (C)2012,JPO&INPIT |
