Design & Technology / Product
‘R Engine’ for the new Sorento May 11th, 2009
By Je Rok Chun, Senior Research Engineer
Passenger Car Diesel Engine Test Team
The new Euro 5 compliant R engine, which makes its world debut in the all-new Kia Sorento highline cruiser, has been developed with the aim of being the world’s best high-powered eco-friendly diesel engine in the competitive 2.0/2.2-liter segment. Full 3D CAD system was utilized at the engine design stage, and various kinds of computer simulations and experiments were used to optimize fuel economy, engine durability and acoustic comfort. Furthermore, numerous fleet tests for a wide range of road and weather conditions were conducted to ensure the reliability of the engine and vehicle.
R Engine Development Team at Nam Yang R&D Center
Source: Chosun.com (2009/05/11)
The R engine has two different versions — 2.0 liter and 2.2 liter. Power and torque of the new engines have been dramatically enhanced: the 2.2-liter engine provides 145 kW of power and 436 Nm of maximum torque while the 2.0-liter unit delivers 135 kW and 392 Nm. These figures make the R engine family class leaders in comparison to similar offering from Toyota, Mercedes Benz, BMW and Volkswagen. The R engine also features remarkable fuel economy and acoustic comfort.
The main features of the engines are a 1800 bar common rail piezo-electric fuel injection system, electrically controlled turbocharger system, a close coupled DPF (Diesel Particulate Filter), highly advanced EGR (Exhaust Gas Recirculation) control system with a by-pass valve and a fast heat-up glow plug system. Stiffness of the engines was also reinforced, and harmonic combination of each part in the moving system including a balance shaft module was maximized for better NVH. In addition, replacement of conventional materials with plastics will play a part in improving end-of-life recyclability.
Thanks to the state-of-the-art technologies cited above, outstanding fuel economy of at least 10% better than the previous version of the Sorento was achieved, which will ensure that the R engine will contribute to reduction of greenhouse gas emissions.
The R engine family will act as a vital cog in Kia Motors’ diesel engine lineup and be evolved into ultra-low fuel consumption and premium versions as well. Kia Motors will continue the development of environmentally friendly engines to meet the growing demands from markets around the world.
※ Editor’s Note: Thanks for the photograph from Chosun.com