| 摘要 |
The engine has a driving block (1) provided with a cylinder. An exhaust-gas recirculation (EGR) adjustment unit adjusts a bypass section in an exhaust gas heat exchanger (3) between 0 and 100 percent according to recycled exhaust gas output to avoid great variations in throughput speed of exhaust fumes in the heat exchanger and have constant throughput speed. The adjustment unit comprises a ball valve (6), and opens/closes a bypass circuit (4). An actuation unit actuates the adjustment unit, and provided with a rotary actuator (8) and a linear actuator. |
