A General Overview on Performant and Cost-Saving Solutions in Designing Coatings for Fuel Injection Systems
Journal Title: RECENT - Year 2011, Vol 12, Issue 31
Abstract
According to C. Treutler, in Europe, more than 40% of all new cars are equipped with Diesel engines, including also the high class cars. High-pressure injection systems with pressure values up to 2000 bar (200 MPa) give the best results for combustion. At the same time, high - hard carbon coatings hold the key to improved performance for these kinds of systems. Regarding this, Diamond-like carbon (DLC) - coatings present crucial advantages in terms of tribological properties (low friction coefficient and low wear for both coated part and counter body). Using a cheaper variant of alloyed steel for manufacturing fuel injection parts and combining it with a DLC deposition, the results could be very performing in terms of quality - cost aspects. Specially designed plasma processes for DLC coatings deposition allow keeping the component temperature below 200 oC, in order to not modify by annealing the structure of steel used and to decrease its hardness. This paper represents a theoretical study of a debutant PhD students group and it aims to present a general overview regarding some advantages of using DLC films; at the same time, there are presented few practical applications of these kinds of films in manufacturing certain parts of Diesel fuel injection systems.
Authors and Affiliations
Corina COJOCARIU, Adnana MARIN, Camelia GABOR, Daniel MUNTEANU
Keywords
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