柴油机
柴油機
시유궤
DIESEL ENGINE
2015年
1期
13-16,30
,共5页
杨书乔%平涛%李翔
楊書喬%平濤%李翔
양서교%평도%리상
天然气发动机%喷嘴%结构
天然氣髮動機%噴嘴%結構
천연기발동궤%분취%결구
natural gas engine%nozzle%structure
针对稀薄燃烧大缸径天然气发动机提高燃气混合均匀性开展研究，利用三维CFD软件比较分析了不同结构的燃气喷嘴其下游混合气的均匀性。研究表明：喷嘴结构对天然气与空气的混合均匀性有明显影响；并优选出了适合研究机型的喷嘴结构。同时分析了喷嘴结构对燃气流通特性和气道流通性的影响。
針對稀薄燃燒大缸徑天然氣髮動機提高燃氣混閤均勻性開展研究，利用三維CFD軟件比較分析瞭不同結構的燃氣噴嘴其下遊混閤氣的均勻性。研究錶明：噴嘴結構對天然氣與空氣的混閤均勻性有明顯影響；併優選齣瞭適閤研究機型的噴嘴結構。同時分析瞭噴嘴結構對燃氣流通特性和氣道流通性的影響。
침대희박연소대항경천연기발동궤제고연기혼합균균성개전연구，이용삼유CFD연건비교분석료불동결구적연기분취기하유혼합기적균균성。연구표명：분취결구대천연기여공기적혼합균균성유명현영향；병우선출료괄합연구궤형적분취결구。동시분석료분취결구대연기류통특성화기도류통성적영향。
Research was carried out to improve gas mixture homogeneity on large bore lean﹣born natural gas engine. The homogeneity of gas mixture downstream the gas nozzles with different structures were ana﹣lyzed by CFD simulation. Studies proved that:gas nozzle structure could make significant effects on gas mixture homogeneity. The proper gas nozzle structure for target engine was selected. The effects of the gas nozzle structures on the flow characteristics of the gas and the port are also analyzed.
