摘要
详细介绍了宝马全可变气门控制系统的结构、工作原理及其特点。该系统包括Valvetron ic机构和VANOS机构,能够在一定的范围内连续调节气门的正时与升程,实现发动机的无节气门负荷调节,降低了发动机的泵气损失,改善了发动机的性能。
Structure and working principles of BMW＇ s fully variable engine electronic valve control system are fully described. The system includes Valvetronic mechanism and VANOS mechanism ,which can continually adjust valve timing and lift in a dimension. It can adjust engine＇ s load without a throttle butterfly to minimize pumping loss and improve engine＇ s performances.
出处
《内燃机》
2007年第3期22-25,共4页
Internal Combustion Engines
关键词
可变气门
升程
正时
variable valve
lift
timing
