| 摘要 |
<p>To reduce time required to warm up an engine in a vehicle including a radiator. A motorcycle 1 includes an engine 20, a radiator 40, a first piping 31 and a second piping 32. The radiator 40 cools a cooling liquid. The first piping 31 connects the engine 20 to the radiator 40. The second piping 32 connects the engine 20 to the radiator 40. The second piping 32, the engine 20, the radiator 40 and the first piping 31 form a circulating circuit 30 through which the cooling liquid circulates. At least one of the first piping 31 and the second piping 32 is substantially constituted by a resin piping.</p> |
