Abstract
This paper describes high performance 4-cylinder gasoline engine that Hyundai newly developed for small cars. This engine is designated Kappa engine and is produced at Hyundai plant in Chennai, India. This engine has been installed in passenger cars named “i10” and “i20” and introduced into Europe and India market. Nowadays, car makers in the world have been competitively developing small cars in order to cope with rising oil price and becoming more stringent CO2 emission regulations. Main development goals of Kappa engine were from reducing CO2 emission and improving fuel economy and it was timely developed to keep up with global interest about environment preservation. As a small engine, Kappa engine was also developed in consideration of generous engine torque, lighter weight, minimal noise, lower cost and compact size. Thus it receives favorable comments in global market. This paper presents various technologies featuring higher torque and better fuel efficiency, lower noise level and lighter weight. Major items for technical highlights are as follows - Roller swing arm, offset crankshaft, beehive valve spring, MoS2 coated piston and low tension piston rings for saving fuel consumption. - DOHC 16V, long runner intake manifold, M12 long reach spark plug and valve timing optimization for excellent torque at low and middle engine speed - Ladder frame, hydraulic lash adjuster and silent timing chain to reduce the noise. In addition, to reduce weight this engine is equipped with aluminum cylinder block, plastic cylinder head cover, plastic intake manifold, etc.
Keywords: Gasoline Engine, CO2 Emission, Fuel Economy, Torque, NVH, Weight