论文部分内容阅读
日立建机ZX70—5型履带式液压挖掘机搭载原装进口环保型发动机,输出功率达到42.4kW。该机搭载电子调速器和离合器风扇,可充分燃烧燃油,提高油耗性能。电子调速器实现同步控制,可以防止发动机转速增加过快,从而实现低油耗和低噪声。另外在急负载作业时,可防止发动机转速下降,维持作业速度,防止熄火。其采用独立回转三泵液压系统,P模式下可提供更高作业效率,经济E模式及自动怠速功能可有效节省燃油,配合卓越的液压系统能在
Hitachi Construction Machinery ZX70-5 crawler hydraulic excavator equipped with imported environmentally friendly engine, the output power reached 42.4kW. The aircraft equipped with electronic governor and clutch fan, can fully burn the fuel, improve fuel consumption performance. Electronic governor to achieve synchronous control, can prevent the engine speed increase too fast, so as to achieve low fuel consumption and low noise. In addition, during heavy load operation, it is possible to prevent the engine speed from decreasing, maintain the working speed, and prevent flameout. The use of independent rotary three pump hydraulic system, P mode provides higher operating efficiency, economic E mode and automatic idle function can effectively save fuel, with excellent hydraulic system can be