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为保护环境,须大力减轻汽车尾气排放污染。欧洲瞄准降低CO_2排放改进发动机,柴油机发展共轨、单体泵等高档直喷技术;汽油机发展高档直喷和高技术气门机构。因汽油含硫量高,使得汽油机直喷技术尚未普及,但目前正在大部分生产厂加强研究。另一方面高技术气门机构,以高级车为中心正在逐步发展,在
In order to protect the environment, it is necessary to vigorously reduce the pollution caused by automobile exhaust emissions. Europe aimed at reducing CO 2 emissions to improve the engine, common rail diesel engine development, single-pump and other high-end direct injection technology; gasoline engine development of high-grade direct injection and high-tech valve. Due to the high sulfur content of gasoline, making gasoline direct injection technology has not yet been widely used, but most of the production plant is currently strengthening research. On the other hand, high-tech valve agencies to advanced cars are being developed gradually