在大西洋彼岸,欧盟ⅢB级排放标准从2012年开始生效,世界其他国家也正在采用类似的标准。随着这些排放标准生效期的迫近,柴油机制造商正在加快研发速度和提高开发能力以提供更清洁和更环保的柴油机;同时,他们也面临来自机车制造商和运营商的压力,以在不影响功率和可靠性的前提下优化燃油效率。上个月,康明斯公司在美国印第安纳州西摩柴 On the other side of the Atlantic, the Euro III B emission standards have come into force since 2012, and similar standards are being applied in the rest of the world. As these emission standards approach the expiration date, diesel engine manufacturers are accelerating their R & D and developing capacity to provide cleaner and greener diesel engines. At the same time, they also face pressure from locomotive manufacturers and operators to Optimize fuel efficiency on the premise of power and reliability. Last month, Cummins Inc. was in Seymour, Indiana, USA