| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an aqueous urea tank for a vehicle for use in an exhaust emission control device for the vehicle, capable of simplifying a thawing means for aqueous urea solution and assuring an excellent aqueous urea thawing performance in the tank. <P>SOLUTION: The aqueous urea tank for vehicle has a cooling water pipe 24 through which engine cooling water flows and an aqueous urea pipe 26 to suck in the aqueous urea and send to an aqueous urea SCR system, in which the cooling water pipe is furnished partially with an aqueous urea heating pipe structured so that a flow passage is formed in a large diameter pipe in a space with respect to its inner wall and a small diameter pipe is provided internally, wherein one of the pipes is used as aqueous urea pipe while the other is used as the cooling water pipe, and a suction hole 48 at the tip of the first pipe is located near the bottom in the tank body 4 so as to suck in the aqueous urea solution, and the aqueous urea solution flowing through this pipe is heated by the engine cooling water flowing through the other pipe. <P>COPYRIGHT: (C)2010,JPO&INPIT |
