The automated cylinder oil mixing (ACOM) system is a newly developed cylinder oil delivery system which automatically mixes two finished oils to the optimum base number (BN) depending on the sulphur content of the fuel in use, see Fig. 1. 

自动气缸油混合（ACOM）系统是MAN新开发一种的气缸油输送系统，根据所用燃料的硫含量，将两种成品气缸油自动混合到最佳碱值（BN），见图1。

The ACOM system will facilitate the lowest possible cylinder oil feed rate and thereby reduce costs, and still ensure safe lubrication and optimised tribology of the piston rings and liners.

ACOM系统将有助于实现尽可能低的气缸供油速率，从而降低成本，并确保活塞环和缸套的安全润滑和优化摩擦。

MAN主机自动气缸油混合系统…你了解吗？

The benefit of the ACOM system lies in its ability to ensure that the cylinder oil is mixed to match the sulpur content of the fuel in use, i.e. from 0.1% to 3.5%. The limits for when the ACOM is active depend on the adaptive cylinder oil control factor (ACC factor) for the engine, see SL2014-587/JAP. The ACC factor is also known as the feed rate factor. 

ACOM系统的优点在于其能够确保气缸油的混合与所用燃料的含硫量相匹配，即0.1%至3.5%。ACOM激活的限制取决于发动机的自适应气缸机油控制系数（ACC系数），请参见SL2014-587/JAP。ACC系数也称为进料速率系数。

In addition to facilitate a cylinder oil with a BN matched to the fuel, and thereby ensuring an optimised cylinder condition, long times between overhaul are achieved. 
除了促进气缸油的碱值BN与燃料相匹配，以确保优化的气缸状态外，还实现了长时间的大修间隔。

The ACOM system also measures the cylinder oil consumption in real time, and it is fitted with the features to read out the daily onsumption and to download a file containing the data. Savings are achieved because the traditional cylinder oil day/measuring tanks can be omitted and the workload of the crew can thereby be reduced. 

ACOM系统还实时测量气缸机油消耗量，并具有读取每日消耗量和下载包含数据的文件的功能。实现了节省，因为可以省略传统的气缸油日/计量罐，从而可以减少船员的工作量。
The ACOM mixes fully-formulated cylinder oils to the BN required to match the sulphur content of the fuel with a minimum dosage, see Fig. 2. This enables the operator to use a low cylinder oil feed rate, thereby saving costs, and, at the same time, keeping the cylinder oil BN at the optimum for the engine.
ACOM将完全配制的汽缸油与BN混合，以最小剂量匹配燃料的硫含量，见图2。这使得操作员能够使用低的气缸油供给速率，从而节省成本，同时将气缸油BN保持在发动机的最佳状态。
MAN举了个例子如下：

The ACOM solution may also be an interesting business case when using high sulfur fuels, based on operational parameters, sulfur content in the fuel, and the lubricating oil used. Figure 3 shows the condition of the 6G80ME-C9.2 engine, where ACOM mixed with 25 BN and 140 BN oil was compared to using 25 BN oil and 100 BN oil respectively. In this example, by using ACOM, the ship can save $22000 annually.

根据操作参数、燃料中的硫含量和使用的润滑油，ACOM解决方案在使用高硫燃料时也可能是一个让人感兴趣的商业案例。图3显示了6G80ME-C9.2发动机的情况，其中将25 BN和140 BN油的ACOM混合与分别使用25 BN油和100 BN油进行了比较。在这个例子中，通过使用ACOM，这艘船每年可以节省22000美元。

对于双燃料主机，MAN要求标准配置ACOM。对于常规ME-C主机，ACOM是可选项。

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