IN THE WORLD OF MOTORS
DAIHATSU-STORIA 2 CD
Daihatsu Storia 2 CD
The world's limited oil reserves and growing environmental problems like a snowball are forcing manufacturers to think more and more about an alternative to an internal combustion engine. But no matter which source of energy comes in the future, this will require a restructuring of the entire economy and enormous costs. In the meantime, you can try to minimize fuel consumption and the amount of harmful exhausts of traditional engines.
The baton of the so-called “three-liter” cars, which was launched recently by Volkswagen, was not slow to catch up with other companies, including the Japanese “Daihatsu”. Last year, she released a modernized version of the Storia city car (known in Europe under the name Sirion), capable of covering a distance of 100 km, having consumed just over three liters of fuel.
The secret of such a modest “appetite” lies in the latest three-cylinder diesel engine installed under the hood, operating … on a two-stroke cycle. Two-stroke diesel engines themselves have long been known, they have been used in shipbuilding and railway transport since the 30s. However, until recently, it was not possible to make a light and economical engine of this design for a car.
The Storia engine, of course, has little in common with ancient motor diesel engines. It is equipped with the new-fashioned Common Rail direct fuel injection system, which is able to optimize the injection pressure at any crankshaft speed. In addition, thanks to the pilot injection of a small portion of fuel, the "Common Rail" allows you to "get" additional "Newton meters" when working at low speeds. The engine also uses a hybrid cylinder purge scheme, including a mechanical supercharger, a turbocharger with an adjustable guide vane, an intercooler, and an exhaust gas recirculation system. For exhaust titanium (!) Valves, which are provided for four for each cylinder (inlet through slots in the lower part of the cylinder), a variable valve timing system DVVT was used. And finally, the simplest measure to reduce fuel consumption is to force the engine to idle off.
Contributed to the fight for efficiency and improved aerodynamics of the body "Storia 2 CD", which also weighs 50 kg less than the prototype model.
Everything that is said here gave excellent results. Judge for yourself: with a volume of less than a liter, the Storia engine develops 45 kW / 61 hp. at 3500 rpm, and its torque reaches 155 N.m at 2200 rpm!
But what about environmental requirements? "Storia" fulfills them with interest. Two specially designed catalytic converters for diesel engines can meet the Euro IV toxicity standards not yet adopted in Europe.