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Technology to Achieve Engine Efficacy: Friction Reduction

FEV India Pvt. Ltd.-Aditya Pratap Singh, Diwanshu Wadhwani, Prashant Sharma, Vivek Rai, Vijay Sharma
Published 2018-04-03 by SAE International in United States
The engine efficacies require the blend of friction reduction approach for optimising the attained output. The research elucidates the scope of friction reduction mechanism to increase engine power and life. The engine components piston and piston rings are coated with the unique composite of graphite, molybdenum disulfide, tantalum layer to reduce friction and wear. The coating on piston minimizes direct contact between piston and cylinder liner, which reduces friction, BSFC and lead to better thermal stability, and engine life. The research also focuses on friction reduction of camshaft bearing by replacing sliding contact bearing with low friction roller bearing. The friction between engine components reduces output power, and the engine oil temperature plays a significant role in it. The research empowers zirconium dioxide coating on oil sump in order to reduce the temperature decay rate so that the optimized engine oil temperature of 100 °C can be retained for longer time. The cars because of traffic gets on and off sporadically, where engine oil temperature role become more prominent, as optimised temperature reduces the problems caused…
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Optimization of Exhaust After-Treatment System (EATS) to BS 6 Emission Level for a Light Commercial Vehicle (LCV) Using Existing BS 4 Engine Results and 1-D Simulation Approach

SAE International Journal of Engines

FEV India Pvt. Ltd.-Ragupathi Soundara Rajan, Vijay Sharma, Ashraf Emran, Devising Rathod
FEV GmbH-John Henry Kwee, Thorsten Michaelis-Hauswaldt
  • Journal Article
  • 2017-26-0119
Published 2017-01-10 by SAE International in United States
The emission legislations are becoming increasingly strict all over the world and India too has taken a big leap in this direction by signaling the migration from Bharat Stage 4 (BS 4) to BS 6 in the year 2020. This decision by the Indian government has provided the Indian automotive industry a new challenge to find the most optimal solution for this migration, with the existing BS 4 engines available in their portfolio. Indian market for the LCV segment is highly competitive and cost sensitive where the overall vehicle operation cost (vehicle cost + fluid consumption cost) is the most critical factor. The engine and after-treatment technology for BS 6 emission levels should consider the factors of minimizing the additional hardware cost as well as improving the fuel efficiency. Often both of which are inversely proportional.The presented study involves the optimization of after treatment component size, layout and various systems for NOx and PM reduction. The study aims to analyze hardware changes required on the selected BS 4 engine to achieve improved engine out emission…
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