ultra-low friction diamond-like carbon _ nissan _ technological development activities

5/21/2018 Ultra-low Friction Diamond-like Carbon _ Nissan _ Technological Develop...

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FUTURE TECHNOLOGY Category Environment Technologies

Use of a hydrogen-free DLC

coating improves binding with the

engine oil and results in the

formation of a firm ultra-low friction

film when special oil additives are

added.

It is now possible to reduce overall

engine friction by 25% by applying

the technology to the parts shown

below.

Ultra-low Friction Diamond-like Carbon (DLC)

Nano-technology based ultra-low friction technology

Nissan has substantially reduced friction between engine parts by developing the first technology in the world to

combine a hydrogen-free diamond-like carbon (DLC)*1 coating with special oil.

*1 DLC (diamond-like carbon): A hard film made of carbon which has diamond-like properties. It has superior

abrasion resistance and a low friction coefficient.

Energy is lost due to friction that arises between the hundreds of parts that comprise an engine. This ultra-low friction

technology uses nanotechnology in order to reduce friction.

Reduces friction by approximately 40% compared to conventional engines, by forming an ultra-low friction film of

nanometer*2 level thickness on top of the hydrogen-free DLC coating.

*2 One hundred millionth of a meter

How it works

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Mirror Bore Coating

Reducing drag inside the engine

and improving fuel consumption

and power

Reducing CO2

Emissions From

Internal Combustion

Engines

Under the Nissan Green

Program 2010, the company is

working to raise the efficiency of

internal combustion engines to

the ultimate level. Nissan is

developing technologies to c ut

engine emissions of CO2 by

30%* from the current level by

2015. (*Note: Goal for the engine

itself)

Real-time Measuring

System for Combustion

Gas Temperatures

This real-time measuring

system for combustion gas

temperatures is the first in the

world to include a method and

device (sensor installed in the

spark plug) capable of

continuously and accurately

measuring gas temperatures

within a combustion chamber

and is an indispensable

technology for developing

environmentally-friendly engines.

Variable Compression

Ratio Piston-Crank

System

Nissan has developed a new

engine mechanism that enables

both high power of turbo engine

and low fuel consumption of

non-turbo engine.

Engine

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ultra-low friction diamond-like carbon _ nissan _ technological development activities

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