本文讲述的主要内容是,利用空气进入气缸时的动能,将这个能量转换而提高压缩终点的温度,用这个方法来改善发动机的起动性。这种方法已由国外的某公司所采用,它的柴油机的特点是起动性能好。在这个公司的柴油机上,装有在起动时可沿轴向移动凸轮轴的装置,以此改变进气门开、闭的相位,使进气门打开时间延迟,当活塞由上死点下移吸气时,进气门仍未打开,在气缸 This article describes the main content is the use of air into the cylinder when the kinetic energy, the energy conversion to improve the compression end temperature, using this method to improve the engine startability. This method has been adopted by a foreign company, its diesel engine is characterized by good starting performance. In the company’s diesel engine, equipped with a device that can move the camshaft in the axial direction during start-up to change the phase of the intake valve opening and closing to delay the intake valve opening time. When the piston moves downward from the top dead center Intake, the intake valve is still not open, in the cylinder