A new type of composite CVT( Continuously Variable Transmission) systems, based on dual-mode power-split planetary gear set, is of improved efficiency, power transmutability and speed variable range.
Two hydraulic motors power the crawlers via closed planetary gear units that run in oil baths and have spring-loaded, hydraulically released holding brakes.
系统具有效率高、率容量与
闭式行星齿轮
为
带提供动力，行星齿轮
油浴中运行，并具有弹簧加载、液压释放的保持制动器。
