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Matsui, Ryuta
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Development of High-performance Diesel Engine Compliant with Euro-V

Honda R&D Co., Ltd. Automobile R&D Center-Ryuta Matsui, Kazuaki Shimoyama, Shigeji Nonaka, Isao Chiba, Shoshi Hidaka
Published 2008-04-14 by SAE International in United States
Honda has newly developed a 2.2 L 4-cylinder turbocharged diesel engine that has achieved high power and lower exhaust gas emissions. This engine is a second generation diesel engine, following the first diesel engine for vehicles at Honda, which was launched in 2004. This engine has realized large reductions in exhaust emissions, to allow compliance with EURO-V standards, and enhancements in output and NV performance. To enhance low exhaust emission performance, this engine adopted a 180 MPa common-rail system and optimized the shape of the combustion-chamber. Moreover, to enhance control accuracy under steady state and transient conditions, a Universal Exhaust Gas Oxygen (UEGO) sensor system was applied, and an electric-controlled EGR valve and electric swirl control valve newly developed. In order to enhance output, a newly developed highly efficient variable nozzle turbine (VNT) was adopted, and intake and exhaust system performance have been enhanced. The maximum power and maximum torque of this engine have been increased to 132 kW/380 Nm from 103 kW/340 Nm, compared to the previous model engine. NV performance is a vital…
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Study on Euro IV Combustion Technologies for Direct Injection Diesel Engine

Honda R&D Co., Ltd. Tochigi R&D Center-Tomohiro Kanda, Shinichi Kobayashi, Ryuta Matsui, Hiroshi Sono
Published 2004-03-08 by SAE International in United States
It is a generally accepted fact that the advantage of diesel engines over their gasoline-powered counterparts is superior fuel consumption. However, attempts to use diesel engines as car powerplants have been hampered by the associated increase in toxic emissions. Research was carried out with the objectives of achieving the lowest fuel consumption for a diesel-powered passenger vehicle in the 1,590kg equivalent inertia weight class while also meeting the 2005 European diesel exhaust emissions standards (EURO IV).This paper starts with a description of the experiments on combustion and the results of the simulations and experiments using a visualization apparatus, followed by a description of the fuel consumption, emissions and power performance of the engine when fitted in an actual vehicle.To begin with, the relationship between engine displacement and fuel consumption was investigated. The result shows that the larger the displacement is, the lower the fuel consumption becomes if the same emissions characteristics and driving performance are maintained by adjusting injection and combustion system parameters and gear ratios.In the next step, a study was performed to identify…
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