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Development of New I3 1.2L Supercharged Gasoline Engine
Technical Paper
2012-01-0415
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
This paper describes a new 1.2-liter three cylinder gasoline engine named HR12DDR, with the target to achieve the lowest level CO2 in the European B-segment market and also, to satisfy the customer's driving pleasure through high output performance. This engine is developed with the consideration of meeting further strict regulations in the years ahead and of the possibility of being an alternative powertrain of diesel in the future as well. As a first step this engine was applied on the European Nissan Micra in 2011; achieving 95g/km CO2 emissions(NEDC mode). This low fuel consumption was realized mainly through technologies which scope to maximize thermal efficiency with high compression ratio, and to minimize the mechanical friction loss. The combustion was optimized by Direct injection (DI)system. To obtain the better fuel economy performance without sacrificing high output, we chose the supercharger system with bypass valve and electromagnetic clutch.
Details of the HR12DDR are presented here along with highlights of the applied technologies.
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Citation
Kobayashi, A., Satou, T., Isaji, H., Takahashi, S. et al., "Development of New I3 1.2L Supercharged Gasoline Engine," SAE Technical Paper 2012-01-0415, 2012, https://doi.org/10.4271/2012-01-0415.Also In
References
- Mito, Y. Tanzawa, K. Watanabe, M. Eiyama, Y. “Advanced Combustion Performance for High Efficiency in New I3 1.2L Supercharged Gasoline Engine by Effective Use of 3D Engine Simulation” JSAE Annual conferene No.20115620
- Isaji, H. Satou, T. Kobayashi, A. Ookouchi, M. Yoichi, M. Shimasaki, H. Inoue, K. “Development of new I3 1.2L supercharged gasoline engine” JSAE Annual conference No.20115705
- Shimizu, M. Yageta, K. Matsui, Y. Yoshida, T. “Development of New 1.6Liter Four Cylinder Turbocharged Direct Injection Gasoline Engine with Intake and Exhaust Valve Timing Control System,” SAE Technical Paper 2011-01-0419 2011 10.4271/2011-01-0419
- Sui, T. Taguchi, A. Murata, T. Kawahara, K. Shimada, Y. “Development of Friction Reduction Technology for the New 1.2L 3cyl Gasoline Engine” JSAE Annual conference No.20115586