| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an exhaust recirculating method having no fear of corroding an air supplying line and the like by recirculated exhaust, and capable of recirculating exhaust by a simple structure. <P>SOLUTION: An air supplying process wherein a piston descends includes a process being a last half of the air supplying process and closing an air supplying valve before the piston achieves a bottom dead point, a process opening and closing an exhaust valve before the piston achieves the bottom dead point after the air supplying valve is closed, and a process spraying moisture to an exhaust passage while the exhaust valve is closed. After the process closing the air supplying valve, the pressure in a cylinder is decreased from air supplying pressure to generally exhaust pressure due to descending of the piston, and then, this exhaust recirculating method is shifted to the process opening and closing the exhaust valve. <P>COPYRIGHT: (C)2003,JPO |
