天然气发动机废气控制阀控制及性能匹配  

Control mechanism and performance match of natural gas engine exhaust adjust valve

作　　者：杨兆山 李洪奎 赵宏恩 韩雨 YANG Zhaoshan;LI Hongkui;ZHAO Hongen;HAN Yu(Weichai Westport New Energy Power Co.,Ltd.,Weifang 261061,China;Weichai Power Co.,Ltd.,Weifang 261061,China)

机构地区：[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

出　　处：《内燃机与动力装置》2020年第1期59-64,共6页Internal Combustion Engine & Powerplant

基　　金：国家重点研发计划课题(2017YFC0211305)。

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R PWM=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。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.

关 键 词：天然气发动机 废气控制阀 增压器 标定 瞬态响应 

分 类 号：TK433.45[动力工程及工程热物理—动力机械及工程]