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Developed Technologies of the New Rotary Engine (RENESIS)
Technical Paper
2004-01-1790
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
The newly developed rotary engine has achieved major progress in high performance, improved fuel economy and clean exhaust gas by innovative action. The engine of the next generation is named RENESIS, which stands for “The RE (Rotary Engine)'s GENESIS” or the rotary engine for the new millennium.
The peripheral exhaust port of the previous rotary engine is replaced by a side exhaust port system in the RENESIS. This allows for an increase in the intake port area, thus producing higher power. Exhaust opening timing is retarded to improve thermal efficiency. The side exhaust port also allows reducing the internal EGR, stabilizing the combustion at idling. The improved thermal efficiency and the stabilized idle combustion result in higher fuel economy.
In addition, the side exhaust port allows a reduction of the HC mass, realizing reduced exhaust gas emission. A Sequential Dynamic Air Intake System is adopted which optimizes air intake depending on the actual engine speed range, producing high torque ranging from low to high engine speeds. Gas seals were optimized for the side exhaust port RE.
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Authors
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Citation
Ohkubo, M., Tashima, S., Shimizu, R., Fuse, S. et al., "Developed Technologies of the New Rotary Engine (RENESIS)," SAE Technical Paper 2004-01-1790, 2004, https://doi.org/10.4271/2004-01-1790.Also In
Advanced Powertrains on CD-ROM from the SAE 2004 World Congress
Number: SP-1836CD; Published: 2004-03-08
Number: SP-1836CD; Published: 2004-03-08
References
- Shimizu, R. Tashima, S. et al. “The Characteristics of Fuel Consumption and Exhaust Emissions of the Side Exhaust Port Rotary Engine” SAE 950454
- Kinoshita, H. Noguchi, N. et al. “New Rotary Engine “RENESIS” Mounted on RX-8” Mazda technical review No.21 Japan 2003
- Tashima, S. Ebino, H. et al. “Side Exhaust Port Rotary Engine Mazda technical review No.21” Japan 2003
- Tokuda, S. Shimizu, R. et al. “Emission Reduction Technology in Newly Developed RENESIS Mazda technical review No.21” Japan 2003
- Yamashita, O. Watanabe, Y. et al. “Rotary Feeling / “Fun to Drive” Mazda technical review No.21” Japan 2003
- Ueki, S. Fuse, S. et al. “Development of Lubrication Analysis for Gas-Seals of Rotary Engine” Mazda technical review No.15 Japan 1997