With most petrol engines using one injector per cylinder, supplying fuel to two intake ports, the Dual Injector System from Nissan doubles the number of injectors per cylinder. “This reduces the diameter of fuel droplets by about 60%, resulting in smoother and more stable combustion” stated the press release.
This new fuel system also uses half the amount of rare metals in the catalyzer while maintaining the efficiency of the catalytic conversion system. And the amount of rare metals could potentially be reduced to 75% in combination with the ultra-low rare metal catalysts introduced in 2008.
“We consider it important to further improve the fuel efficiency of gasoline engines as demand for gasoline and other internal-combustion systems continues to increase around the world,” said Shuichi Nishimura, Corporate Vice President, Nissan Powertrain Engineering Division. “By widely applying the Dual Injector system on small-displacement engines, we hope to help reduce CO2 emissions and conserve rare metals.”