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Effects of Compression Ratio on Characteristics of PCCI Diesel Combustion with a Hollow Cone Spray
Technical Paper
2005-01-2130
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Characteristics of premixed charge compression ignition (PCCI) Diesel combustion were investigated experimentally. In a PCCI engine, the operatable range is limited by the cyclic variation at low loads and the intensive knock at high loads. In the present study, effects of compression ratio on the characteristics of the PCCI combustion are investigated experimentally. The compression ratio was varied from 18.8 to 14.8. For the early injection timing, the high load operation limit is extended from BMEP = 0.22 MPa to 0.40 MPa. At the same time, the minimum BSFC for the early injection timing decreases from 330 g/kWh to 230 g/kWh.
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Authors
- Mikiya Araki - Department of Mechanical Engineering, Gunma University, Japan
- Tatsuhito Umino - Department of Mechanical Engineering, Gunma University, Japan
- Tomio Obokata - Department of Mechanical Engineering, Gunma University, Japan
- Tsuneaki Ishima - Department of Mechanical Engineering, Gunma University, Japan
- Seiichi Shiga - Department of Mechanical Engineering, Gunma University, Japan
- Hisao Nakamura - Department of Mechanical Engineering, Gunma University, Japan
- Wu-Qiang Long
- Akira Murakami
Citation
Araki, M., Umino, T., Obokata, T., Ishima, T. et al., "Effects of Compression Ratio on Characteristics of PCCI Diesel Combustion with a Hollow Cone Spray," SAE Technical Paper 2005-01-2130, 2005, https://doi.org/10.4271/2005-01-2130.Also In
References
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