简要介绍车用CN G 装置的结构和工作原理, 并对其社会、经济效益进行分析。 关键词: 客车 天然气 CN G 双燃料 Abstract: Th is paper no t only int roduces the st ructure and wo rk ing p rincip les of the CN G equipments fo r veh icles but also analyses their social and econom ical benefit. Key words: Coach, N atural gas, CN G, Double fuel