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3 配气机构 3.1 功用配气机构是实现柴油机进气过程和排气过程的控制机构。功用是按照柴油机的工作顺序,定时地打开或关闭进气阀或排气阀,使新鲜空气进入气缸并把燃烧后的废气排出气缸。 3.2 配气相位为了让更多的新鲜空气进入气缸,更彻底地清除气缸内的废气,进排气阀要提前开路,迟后关闭。通常用曲轴转角来表达进排气阀开关时刻,气阀开始开启和关闭终止瞬时的曲轴转角称为配气相位。X105系列柴油机进气阀提前在上止点前(14.5_(?)~0)°开,迟后在下止点后(45.5_(?)~0))°关;排气阀提前在下止点前(45.5_(?)~0))°开,迟后在上止点后(14.5_(?)~0))°关。进排气持续角各为240°。配
3 with gas mechanism 3.1 function with gas mechanism is to achieve diesel engine intake process and exhaust process control mechanism. The function is to regularly open or close the intake valve or the exhaust valve according to the working sequence of the diesel engine so that the fresh air enters the cylinder and discharges the burnt exhaust gas out of the cylinder. 3.2 gas phase In order to allow more fresh air into the cylinder, a more thorough removal of the cylinder exhaust, intake and exhaust valves to open early in advance, late closure. Usually used to express the crank angle into the exhaust valve switching time, the valve starts to open and close the instantaneous termination of the crank angle is called the valve phase. X105 series diesel intake valve before the top dead center in advance (14.5 _ (?) ~ 0) ° open, late after the bottom dead center (45.5 _ (?) ~ 0)) ° off; exhaust valve early in the bottom dead center (45.5 _ (?) ~ 0)) ° open, late after the top dead center (14.5 _ (?) ~ 0)) ° off. Into the exhaust continued angle of 240 °. With