从DOC到DPF再到SCR，WOLF过滤须知
从DOC到DPF再到SCR，WOLF过滤须知
THROUGHOUT THE AUTOMOTIVE HISTORY THERE HAS BEEN A WIDE VARIETY OF EFFORTS TO REDUCE THE IMPACT OF EXHAUST GAS ON HEALTH AND ENVIRONMENT. IN THIS ARTICLE WE FOLLOW THE EXHAUST GAS THROUGH THREE COMPONENTS OF THE EXHAUST AFTER-TREATMENT SYSTEM AND WE EXPLAIN HOW THEIR FUNCTIONALITY IS INFLUENCED BY ENGINE OILS.
纵观汽车历史，人们做出了各种各样的努力来减少废气对健康和环境的影响。在本文中，我们通过排气后处理系统的三个组件跟踪排气，并解释其功能如何受到机油的影响。
Experts in filtration: DOC and DPF
过滤专家：DOC和DPF
The DOC, or Diesel Oxidation Catalyst, is a catalytic converter focused on reducing the emission of harmful CO and hydrocarbons. The DOC uses a honeycomb structure to maximize the area of contact between the exhaust gas and the catalyst metals which enable the hydrocarbons and CO to break down into CO2 and H2O. The DOC is a smart investment that brings your car a step closer to cleaner mobility; you can see and smell its impact on your exhaust gas.
DOC或Diesel Oxidation Catalyst（柴油机氧化催化器）是一种催化转化器，专注于减少有害一氧化碳和碳氢化合物的排放。DOC使用蜂窝结构来最大限度地扩大废气和催化剂金属之间的接触面积，使碳氢化合物和一氧化碳分解成二氧化碳和水。DOC是一项可让汽车更接近清洁驾驶的明智投资；您可以耳闻目睹它对废气的影响。
The DPF, or Diesel Particulate Filter is just like the DOC a real specialist. It collects and burns particles contained in the exhaust gas. The oxidation process takes place in a honeycomb structure, similar to the DOC’s structure. It uses the heat generated by the engine and the DOC to burn the collected particles. But be careful, a clogged DPF filter will mitigate the gained advantages. The DPF can be seen as a son of the DOC. It needs to be protected from too much hydrocarbons which can clog the filter and it uses the DOC’s heat to burn the particles, what an innovative teamwork.
DPF或Diesel Particulate Filter（柴油颗粒过滤器）像DOC一样是真正的过滤专家。它收集并燃烧废气中含有的颗粒。氧化过程发生在类似于DOC的蜂窝结构中。它利用发动机和DOC产生的热量来燃烧收集的颗粒。但要注意，堵塞的DPF过滤器将减少所具有的优势。DPF可视为DOC的延续。需要防止它受到过多的碳氢化合物影响以免堵塞过滤器并利用DOC的热量来燃烧颗粒，多么创新的团队合作。
NOx reduction
NOx（氮氧化物）还原
SCR, or Selective Catalytic Reduction is a catalyst focused on removing the NOx from the exhaust gas. To accomplish this it makes use of one of three additional fluids: urea, anhydrous ammonia or aqueous ammonia. The exhaust gas and catalytic fluid enters the system and pass through a structure containing catalytic metals. They stimulate the transformation from NOx into a variety of less harmful substances controlled by the urea.
SCR或Selective Catalytic Reduction（选择性催化还原）是一种专用于废气中除去NOx的催化剂。为此，它使用三种附加液体中的一种：尿素、无水氨或氨水。废气和催化液体进入系统并通过含有催化金属的结构。它们促进了从NOx到尿素控制的各种无害物质的转化。
Importance of engine oil
机油的重要性
The exhaust after-treatment system is not directly attached to the engine oil circulation. This means that no engine oil will flow through one of the system’s components. But don’t underestimate the importance of choosing a lubricant compatible with your after-treatment system.
排气后处理系统不直接连接到机油循环。这表示机油不会流经系统的某个部件。但是，不要低估选择与后处理系统兼容的润滑油的重要性。
Every time a combusting takes place a very tiny amount of engine oil gets burned along with the fuel. The residue of the burned lubricant passes through the after-treatment system where it can affect the catalysts or clog one of the filters.
每次燃烧产生时，非常少量的机油与燃料一起燃烧。燃烧的润滑油的残渣通过后处理系统，会影响催化剂或堵塞其中一个过滤器。
By investing in innovative technologies Wolf is capable of presenting a wide range of products compatible with exhaust after-treatment systems. Any product complying with the ACEA C1-C4 and E6/E9 category will guarantee an all-round protection to compatible diesel engines and exhaust after-treatment systems. The upcoming expansion towards the ACEA C5 specification will widen this innovative product range.
Wolf通过投资创新技术，能够提供一系列与排气后处理系统兼容的产品。任何符合ACEA C1-C4和E6/E9类别的产品都将保证对兼容柴油发动机和排气后处理系统提供全方位保护。即将推出的ACEA C5规范将扩大这一创新产品系列。
Finding the right engine oil for your vehicle is getting more complex. But Wolf is here to assist you. Wolf’s product finder is a tool that guides you through the process of finding the most optimal engine oil for your vehicle within seconds. With just the brand and type of your diesel vehicle you can find out which engine oil will protect your exhaust after-treatment system whilst maintaining engine protection.
为您的车辆找到合适的机油变得越来越复杂。但有Wolf为您提供帮助。Wolf的产品搜索器是一种可指导您在几秒钟内为车辆找到最佳机油的工具。只需输入柴油车的品牌和类型，您就可以找到哪种发动机油可以保护您的排气后处理系统，同时保持发动机保护。
Engine oils
机油
All of these exhaust after-treatment systems are pushing our engines towards a cleaner future but all of them are very vulnerable. This is why choosing the right lubricant for your car is of utmost importance. A little bit of engine oil gets burned during the running of the engine, meaning that the residue of the burned up engine oil passes through the three after treatment systems. Some of these residues can clog the filter or prevent the catalytic fluids or metals from functioning as intended. Mainly the engine oils containing sulphated ash are not compatible with vehicles containing these filters. This is why ACEA, or the European Automobile manufacturers Association, included this differentiation in their lubrication standards. The C1 to C4 and the E6 and E9 are engine oils suited for cars equipped with an after-treatment system. The latest addition to the family is the C5 standard. The progressive and innovative products in the C5 category offer an all-round protection of the exhaust after-treatment systems and an even higher fuel economy. Wolf Oil’s experts always looking for the products and technologies of tomorrow, keep your eyes peeled for the upcoming product releases!
所有这些排气后处理系统都在推动我们的发动机走向更清洁的未来，但所有这些系统都非常脆弱。这就是为您的汽车选择合适的润滑油至关重要的原因。少许机油在发动机运转期间会一起燃烧，这意味着燃烧的机油残渣通过三个后处理系统。这些残留物中的一部分会堵塞过滤器或阻止催化液或金属按预期发挥作用。主要是含有硫酸盐灰的机油与含有这些过滤器的车辆不相容。这就是为什么ACEA，或European Automobile manufacturers Association（欧洲汽车制造商协会）将这种差异化纳入其润滑油标准的原因。C1至C4以及E6和E9适用于配备后处理系统的汽车机油。该系列的最新成员是C5标准。C5类别的先进和创新产品为排气后处理系统提供全方位保护，并提供更高的燃油经济性。Wolf 机油的专家团队一直在寻找未来的产品和技术，请您关注即将发布的产品！
Finding the right engine oil with all this data, traps and abbreviations seems a tedious task. That is why Wolf designed a tool for you to find the right engine oil for your car, including the protection of the after-treatment system! This means that with a few clicks you can find out which oil fits your engine and protects your after-treatment system. As a manufacturer of engine oil we find it our duty to help any customer to find the right lubricant suited for their needs with respect for the environment. Towards a greener future and smarter mobility.
用所有这些数据、故障信息和缩写找到合适的机油，似乎是一项乏味的工作。这就是Wolf设计了一个为您的汽车找到合适的机油、包括保护后处理系统的工具的原因！这意味着您只需轻点几下鼠标，就能找到适合您的发动机，并保护您的后处理系统的机油。作为机油制造商，我们认为有责任帮助所有客户找到适合其环境需求的合适润滑油。向更绿色的未来和更智能的移动迈进。
