Experimental Investigation on Four Strokes Catalytic Coated Spark Ignition (SI) Engine.

The future of automobile internal combustion (IC) engine facing twin challenges due to emission norms and improving engine performance. Hence it is very important to identify some technique to reduce the emission level and also to improve the engine performance. Catalytic coating is one of the most suitable techniques for reduction of pollution level and increase the engine efficiency. In this paper, the investigations carried out in the single cylinder catalytic coated four stroke spark ignition (SI) engine is discussed in detail. The engine combustion chamber and piston crown were coated by copper (catalyst). The performance of catalytic coated engine various parameters such as torque, brake power at different engine speed conditions measured by using two wheeler chassis dynamometer. In this investigation the comparative study also were carried out for copper coated engine with conventional (Un-coated) SI engine and the results showed that copper coated engine has significant reduction of the carbon monoxide (CO), Hydrocarbon (HC), and Carbon dioxide (CO2) level compare to conventional engine (uncoated) emission levels. [ABSTRACT FROM AUTHOR]