杨兆山1,2，李洪奎1，赵宏恩1,2，韩雨2

1.潍柴西港新能源动力有限公司，山东潍坊261061；2.潍柴动力股份有限公司，山东潍坊261061

摘要：基于天然气发动机废气控制阀控制机理，试验研究不同结构原理下的废气控制阀的性能指标，通过综合对比分析发现：废气控制阀样件A与增压器性能匹配最佳，增压高效区为RPWM=15%~75%，为优化标定发动机的低速性能及增压器的瞬态响应提供了理论依据。

关键词：天然气发动机；废气控制阀；增压器；标定；瞬态响应

Abstract:Based on the control mechanism of wastegate control valve of natural gas engine, the performance indicators of wastegate control valves with different structures are studied through tests. Through comprehensive comparison and analysis, sample A is the best match for the turbocharger, and the high turbo charging efficiency area is PWM duty cycle from 15% to 75%,which provides a theoretical basis for calibration and optimization of the engine at low speed performance and transient response of the turbocharger.

Keywords:natural gas engine; wastegate control valve; turbocharger; calibration; transient response