Top-Level Efficiency Due to Improved Engines and CVT
Current internal combustion engine vehicles lose approximately 70% of
their fuel’s energy as waste heat. Nissan aims to minimize energy loss and
increase fuel efficiency by improving combustion efficiency, as well as
reducing intake and exhaust resistance and friction.
For example, by downsizing a conventional inline 4-cylinder, 1.5-liter
engine to a 3-cylinder, 1.2-liter engine with a supercharger, Nissan boosted
fuel efficiency while maintaining the performance of the larger engine.
Similarly, replacing a V-type 6-cylinder, 3.5-liter engine with an inline
4-cylinder, 2.5-liter engine with a supercharger increased engine efficiency
by up to12%.
Further, Nissan is working steadily to improve engines by refining
existing technologies, such as giving cylinder interiors mirrorlike smoothness
to reduce friction and improving combustion efficiency through exhaust gas
recirculation.