| 摘要 |
PURPOSE:To defrost the glass surface by the heat in an exhaust gas, by coupling a defrost tube to an engine exhaust tube then leading to the front of the glass surface and feeding the exhaust gas through an exchange valve. CONSTITUTION:A defrost tube 3 is coupled with an engine exhaust tube 1. An exchange valve 2 for feeding the exhaust gas is provided in said tube 3. Then said tube 3 is led to the front of the front glass surface while an injection port 4 for injecting the exhaust gas efficiently to the glass surface is provided at the tip of said tube 3. |
