Isuzu Motors Limited

Hino Motors, Ltd.

Kazuhiro Kodaira

Tatsuo Mashiko

Shin Amagasaki

Munetomo Matsunami

Akihiro Tozuka

Takuya Mito

Hiroshi Urushibara

Provided is a breather pipe structure for a liquid reducing agent storage tank which ensures that a liquid reducing agent can be supplied without trouble even if a breather pipe in the liquid reducing agent storage tank is clogged with frozen liquid reducing agent. In a breather pipe structure for a liquid reducing agent storage tank () which stores a liquid reducing agent () and which has a breather pipe () for introducing/discharging air attached on top of the liquid reducing agent storage tank (), a lower end () of the breather pipe () in the liquid reducing agent storage tank () is arranged to extend along a liquid reducing agent defrosting piping () provided in the liquid reducing agent storage tank ().

Breather pipe structure for liquid reducing agent storage tank

A pressure-releasing breather hosemounted on a urea water tankis dividably constituted by a flexible joint portionwith an end capable of being fitted over a hose jointon the tank, and a vertical portionconnected to the other end of the joint portionand suspending downward along a side surface of the tank. The joint and vertical portionsandare constituted by a rubber hose made of ethylene propylene diene terpolymer (EPDM) and a polyethylene pipe (resin pipe) made of high density polyethylene (HDPE), respectively.

Breather hose for aqueous urea solution tank

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Tokyo, Japan

Kazuhiro Kodaira