| 摘要 |
<P>PROBLEM TO BE SOLVED: To quickly defrost a urea aqueous solution 20 frozen in a tank during running or parking of a vehicle in a cold region. <P>SOLUTION: An aqueous urea heating device 10 provided in the urea aqueous solution 20 stored in an aqueous urea tank (container) 100 for directly heating the urea aqueous solution 20 includes a heat generating body 110 having a long shaft-like heat generation part 115 for generating heat by energization and heating the inside of the container 100 from the lower portion to the upper portion, and a plate-like heat transfer part 116 substantially orthogonal to the heat generation part 115 and extended in the radial direction. When the heat generation part 115 generates heat by energization of the heat generating body 110, heat is transferred to the heat transfer part 116 to heat not only the surface of the heat generation part 115 but also a fluid on the surface of the heat transfer part 116, so that the frozen fluid in the container 100 can be quickly defrosted. <P>COPYRIGHT: (C)2009,JPO&INPIT |
