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The Service of Hard Coatings on Engine Fueling Components

The Service of Hard and Wear Resistant Coatings on Engine Fueling Components
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There are two types of engines with different fuel delivery system. In gasoline engines, fuel is mixed with air and enters the cylinder. Ignition is caused by electrical spark produced by a candle. In diesel engines, fuel in the form of powder is injected in cylinder and ignition is caused by air compression and temperature increment. These engines are internal combustion engines because the ignition is carried out inside the engine. An internal combustion engine (ICE) is a heat engine where the combustion of a fuel occurs with an oxidizer (usually air) in a combustion chamber. Friction and wear are two conditions that these engines face with. Friction has negative effects on engine efficiency and lifetime. Friction reduces operational efficiency. It also increases wear and as a result reduces the lifetime. So much effort has been made to reduce friction. Toward that end, engine components are lubricated by a liquid or semi-solid material such as oil, grease as well as solid materials such as graphite. Their use requires that steady supply of materials be provided to the contacting surfaces. In addition, high temperatures and pressures can make delivery of such lubricant materials difficult. Moreover, the size of lubricating passages can also complicate the delivery of lubricant materials. Consequently, the use of coatings which are hard, lubricious and durable is justified. These coatings are usually carbides, nitrides and oxy-nitrides of transition metals. CrN and TiN are the coatings of these kinds.
Coatings for components of fuel delivery system
Abrasion and wear resistant nanostructured coatings
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Increment of hardness and abrasion resistance due to nanometric structure of coatings

Product Standard

  • NanoScale Certification

    NanoScale Certification

    Standard Date : 2015/07/30

    Expire Date : 2018/07/29

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