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For the future of the internal
combustion engine  Storia
2CDThis is a three-liter car with a new two-cycle direct injection diesel engine. This three-liter car was manufactured by Daihatsu, the small-car specialist. One of the main development targets was the ability to cover 100 kilometers on three liters of fuel, which has been achieved without sacrificing any power or comfort. The Storia 2CD has a lightweight body and a new two-cycle direct injection diesel engine. New two-cycle direct injection diesel engine This is a three-cylinder, 1,000 cc two-cycle direct injection diesel engine. It has the excellent output and low vibration characteristics for which two-cycle units are known, plus the high heat efficiency of a direct injection diesel. It also has many new technologies (for which patent applications have been filed), the overall result being a powerful, fuel-efficient, smooth-running engine that delivers a maximum output of 45 kW (61ps)and a maximum torque of 155 N•m (15.8kg•m). The dual catalytic converter system ensures an emissions level in full compliance with current and upcoming domestic emission standards and with Europe's EURO3 standard, and will also be ready for pending domestic standards planned for the future, and for EURO4.  Main
features of the new two-cycle direct injection diesel
engine1. High-efficiency hybrid scavenging system In addition a supercharger and variable-nozzle turbocharger with intercooler, the engine has a Uniflow high-efficiency hybrid scavenging system with bypass control. The scavenging system has a specially designed port to enable it to effectively use exhaust gas energy, which is combined with scavenging pressure control to boost power and improve fuel consumption. 2. DVVT(Dynamic Variable Valve Timing)system The performance of a two-cycle engine depends on the timing of its exhaust system. Daihatsu's DVVT continuously variable-valve timing system ensures optimum control of the four-valve DOHC exhaust system, resulting in optimum fuel performance and power output under all engine loads. 3. Common-rail fuel injection system The latest common-rail fuel injection system is used. Pilot injection is performed with the cylinder injection pressure being maintained at the optimum level according to the engine load, to thereby improve low-end torque, boost fuel efficiency and reduce noise. The high-pressure injection by the common-rail system together with the injector location in the center of each cylinder (the location of the four exhaust valves) and use of precision swirl control for optimal combustion provide a major improvement in power and fuel consumption and much lower exhaust gas emissions. 4. Other new technologies To extend durability, ensure valve performance and reduce noise and vibration, a number of new technologies are incorporated that include special cast-iron pistons with cooling channels, ceramic pistons cast-iron scavenger-port liners and titanium valves. Main Specifications
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THE 33rd TOKYO MOTOR SHOW 1999 Top Page |
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