同时改善内燃机低工况性能、高工况燃油效率、NOx排放及瞬态特性的系统

• Format: Patent
• Language: Chinese
• Published: 11.01.2017
• Subjects: BLASTING; CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TOTRANSPORTATION; COMBUSTION ENGINES; COMBUSTION ENGINES IN GENERAL; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; HEATING; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS; INTERNAL-COMBUSTION PISTON ENGINES; LIGHTING; MECHANICAL ENGINEERING; SUPPLYING COMBUSTION ENGINES IN GENERAL, WITH COMBUSTIBLEMIXTURES OR CONSTITUENTS THEREOF; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; WEAPONS

本发明公开种利用尾气余热同时改善内燃机低工况性能、高工况燃油效率、NO排放及瞬态特性的系统，包括水箱、水泵、蒸发器、过热器、涡轮、压气机、内燃机机体、混合室、膨胀机、压缩机、发电机、阀门、连接轴及连接管路，在低转速工况，过热蒸汽直接喷注到涡轮前增大涡轮功来提高发动机进气量；在高转速工况，多余的涡轮前废气同过热蒸汽起流经膨胀机膨胀做功并由同轴连接的发电机转化为电能存储；在中低负荷工况，过热蒸汽流经膨胀机，带动同轴连接的压缩机将蒸发器出口废气压缩引入混合室；在瞬态加载过程，向涡轮前喷注过热蒸汽提高涡轮的响应速度。本发明设计合理，结构简单，适用于发动机废气余热系统的设计。