PT燃油系统技术是美国寇明斯发动机公司的技术专利。装有寇明斯发动机的工程机械引进到我国还是近几年的事情,因此,对PT系统的构造及工作原理的认识也刚刚开始,而且是初步的。本文对以“P—T”原理计量循环供油量的PT喷油器的结构特点及工作原理,即供油——喷油过程、循环供油量计量、工作特性及调整原理等进行了分析。 The PT fuel system technology is a patented technology of the United States Semins Engine Company. It is still a matter of recent years that the construction machinery equipped with the Simings engine has been introduced into China. Therefore, the understanding of the structure and working principle of the PT system has just begun, and it is preliminary. This paper analyzes the structural characteristics and working principle of the PT fuel injector with the “P—T” principle for measuring the circulating oil supply, ie, the oil supply—injection process, cyclic oil supply measurement, work characteristics, and adjustment principles. .