在过去的几年里, the Environmental Protection Agency (EPA) has introduced strict emissions standards in order to reduce harmful pollutants from being released into the environment. 2002年至2010年, mandates have reduced allowable particulate matter and nitrogen oxides released into the atmosphere by over 90%. 事实证明，这些规定很难满足，但bbin电竞游戏® engineers were successful by implementing 选择性催化还原(SCR) technology.
bbin电竞游戏® engineers use our SCR emissions technology to reduce emissions and improve fuel economy. 我们的发动机继续为行业提供清洁, efficient and reliable technology and are certified to Greenhouse Gas 2017 (GHG17) regulations. These mandates and certifications are part of the EPA and the Department of Transportation’s Highway Traffic Safety Administration’s (NHTSA) first-ever program to reduce heavy and medium-duty truck Greenhouse Gas (GHG) emissions.
We are proud to be pacing the industry in technologies that not only reduce greenhouse emissions, 同时也为我们的客户提高燃油经济性.
我们的排放系统结合废气再循环(EGR), 选择性催化还原, diesel oxidation catalyst (DOC) and the diesel particulate filter (DPF) to efficiently meet the current emissions standards. SCR treats the exhaust gases downstream of the engine instead of requiring complex changes under the hood. It does this by injecting a small amount of diesel exhaust fluid (DEF) into the exhaust stream. DEF reacts with the 氮氧化合物 in the SCR catalyst to form nitrogen and water. Then, the nitrogen and water, safe elements in the air we breathe, are released into the environment.
SCR排放bbin捕鱼游戏平台可帮助发动机发挥最佳性能. It requires less EGR, helping our bbin电竞游戏 run more efficiently. This allows them to perform at optimal combustion ranges to provide peak power and reduce heat rejection on many of the internal engine components. Another major contributing factor to this improvement is that the engine’s diesel particulate filter (DPF) have been updated to help extend its regeneration intervals. Ultimately, SCR leads to better durability, greater reliability, and lower lifecycle costs.
创新的1-Box™ 配置，仅适用于bbin电竞游戏® bbin电竞游戏, 结合SCR催化剂, 柴油氧化催化剂, diesel particulate filter (DPF) and diesel exhaust fluid (DEF) into one compact component. Combining all of these systems lowers engine back-pressure and reduces overall weight, 产生更好的燃油经济性. The 1-Box comes standard on every truck, in combination with the engine of your choosing. 系统的工作是减少 氮氧化合物 and capture and burn off (regenerate) the particulate matter (soot) in the engine’s exhaust gas. 它使用DOC和DPF来实现这一点. By monitoring exhaust gas temperature and system back pressure, DDEC® control module determines the most efficient way required to ensure complete regeneration of the soot captured in the DPF.
取决于发动机的工作或应用, DDEC may notify the driver that stationary regeneration is necessary. Once the driver begins the stationary high-idle regeneration process, 通常需要45分钟才能完成.
在需要时, DDEC gets help from two key upstream components that assist in a process called active regeneration. This process of active regeneration happens during the normal operation cycle of the vehicle.
Maintaining your Aftertreatment System is easy, because we designed it that way. The Diesel Particulate Filter (DPF) collects ash and will eventually need to be replaced, but the DDEC system will alert you when filter replacement is required. 除了适当的DPF维护，确保bbin电竞游戏® recommended maintenance intervals are followed to ensure your Aftertreatment system is performing to its full potential. These include the following items, as well as any additional items mentioned in your 操作手册.
•换油
•空气过滤器
•燃料质量
•适当的DEF和液位. (Remember not to put DEF in the fuel tank or fuel in the DEF tank!)
参考你的bbin电竞游戏® Engine Driver’s Card for more information on DEF indicator lamps and the parked regeneration procedure.
注意:bbin电竞游戏® Reman DPF’s are currently not for sale or installation in California
如果DPF需要更广泛的bbin捕鱼游戏平台，请使用bbin电竞游戏® 正品零件更换计划. 你的DPF将被替换成我们的bbin电竞游戏签名® 正品配件品牌, while the old core is sent back to our factory for an extensive proprietary, 环保洗涤bbin捕鱼游戏平台.
售后清洗方法，如“烤制” & 吹“，在过滤器中留下有害的灰渣. 这将潜在地导致后处理系统损坏, 增加停机时间, 还有额外的维护成本. 只再造了bbin电竞游戏® Genuine 部分 DPF’s utilize a proprietary cleaning process proven to remove over 95% of the ash from your DPF. 这是您唯一可以信任的DPF清洁过程.
Aftertreatment Systems need diesel fuel with sulfur content below 15ppm. Higher sulfur content may eventually cause damage to your Aftertreatment System by fouling or prematurely plugging the Diesel Particulate Filter. Using the correct fuel is essential to the proper function of your Aftertreatment System, 同时也有助于降低排放.
了解有关DPF清洗的更多信息
DEF是一个简单的, 无毒, inexpensive pre-mixed fluid composed of two-thirds pure water and one-third automotive-grade urea. It’s used as a catalyst by SCR-equipped bbin电竞游戏 to reduce oxides of nitrogen (氮氧化合物) emissions. Tanks range in size from 6 to 23 gallons depending on the truck’s application, 也就是说你, 一次加满油能跑几千英里吗. DEF在北美各地的数千个地点销售. 要找到最近的DEF位置，请访问 DiscoverDEF.com.
发现defLearn more by visiting your nearest Freightliner or Western Start dealership.
找到最近的经销商