| 摘要 |
<p>A hydraulic excavator includes a urea aqueous solution injection device, a urea aqueous solution tank, a pump, a first pipe, and a second pipe. The urea aqueous solution injection device is disposed in an engine compartment, and injects an aqueous solution of urea to clean exhaust gas. The urea aqueous solution tank stores the aqueous solution of urea. The pump draws up the aqueous solution of urea form the urea aqueous solution tank and supplies it to the urea aqueous solution injection device. The first pipe connects the reductant tank to the pump, and supplies the aqueous solution of urea from the reductant tank to the pump. The second pipe connects the pump to the reductant injection device, supplies the aqueous solution of urea from the pump to the reductant injection device, and has a smaller inside diameter than the first pipe.</p> |
