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Monday, February 04, 2013
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ABSTRACT
Friction, lubrication, and
wear have a major influence on the efficiency and lifetime of machinery. A
major quantity of fuel is used to overcome friction in car components. Fuel consumed
to overcome friction in cars is mainly through engine, transmission, tires, and
brakes. Technologies for reducing friction are direct ways of improving
vehicle fuel economy. By taking advantages of advanced technology for friction
reduction we can reduce this energy consumption to some extent. Recent advances
in smart surface engineering and coating technologies offer unique
possibilities for better controlling friction and wear under boundary or
marginally lubricated conditions. The development of Physical Vapor Deposition
(PVD) coatings of low friction, hard and thin diamond like carbon (DLC) has
offered new possibilities for friction reduction in cars. The most promising
results originate from investigation with modifying the contact surface by Partial
laser surface texturing (LST) in piston rings. But implementing these advanced commercial solutions in all cars is
not an easy task. But it is possible to believe that by implementing some of
these technologies in future cars we can reduce this fuel consumption to some
extent.
Friction, lubrication, and wear have a major influence on the efficiency and lifetime of machinery. Friction, the resistance to motion, has been a challenge for mankind throughout history.Important inventions in man’s earliest struggle to overcome friction were to use natural oils to lubricatemoving contacts. The studies over fiction and wear have coined the word ‘‘tribology’’ for the science and technology of interacting surfaces in relative motion.A considerable amount of energy is being consumed to overcome friction, especially in the transportation, industrial, and power-generation sectors, and major economic losses are due to wear of products and components and their replacement.
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