Nissan is introducing a new 1.2-litre 3-cylinder supercharged engine named the HR12DDR which aims at being the lowest fuel consuming gasoline engine in the world.
The new 1.2-litre 3-cylinder supercharged engine has the same output as a 1.5-litre unit, while CO2 emission level is 95 grams per Km.
Some info regarding the technology behind the new Nissan 1.2-litre 3-cylinder supercharged engine says that the Miller cycle was adopted meaning the power stroke is enhanced by the compression stroke and the thermal energy of the fuel is converted into kinetic energy more efficiently than in a regular 4-stroke cycle engine.
The supercharger is equipped with an automatic on/off clutch, which means that both high fuel efficiency and high engine performance can be achieved by automatically switching off supercharging while driving at low speeds, such as on city roads.
Adoption of a hydrogen-free diamond-like carbon (DLC) coating for the piston rings and a variable displacement oil pump helps to reduce friction by up to 30%, compared with conventional 4-cylinder engines with similar performance levels.
These technologies are the culmination of the company's R&D efforts based on Nissan’s mid-term environmental action plan (Nissan Green Program 2010) that includes initiatives to reduce CO2 emissions and introduce truly effective technologies, products and services into the market.
The first model which will get the new engine in the first half of 2011 will be the latest March (initially only in the European market).
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