Mazda Bringing Out First Commercial Fuel Efficient Compression Ignition

  • Mazda Bringing Out First Commercial Fuel Efficient Compression Ignition

Mazda Bringing Out First Commercial Fuel Efficient Compression Ignition

Mazda claims that the next-generation engine, dubbed SKYACTIV-X, will introduce a notable power and efficiency boost over the firm's current-gen SKYACTIV-G units, which could even equal or exceed conventional diesel engines in terms of fuel economy.

If the efficiency gains are as significant as Mazda said, other companies will want to use the engines or copy the technology, he added.

Perhaps Mazda's future plans will one day include the RX Vision concept. He said, yes, electrification was necessary but "the internal combustion engine should come first".

Mazda says the new (proprietary) process combines the benefits of both diesel and gasoline engines, for significant improvements in fuel efficiency.

It maximizes the zone in which compression ignition is possible and also achieves a seamless transition between compression ignition and spark ignition.

The engines will also be supercharged, so they will be torquier than the current Mazda gasoline-powered engine range, and they'll be cleaner and more efficient.

When Mazda announced its first high-compression SKYACTIV engines in June 2008, it committed to reducing its worldwide fleet-average fuel consumption between then and 2015 by 30 per cent.

Mazda's compression gasoline engine is promised to deliver 10- to 30-percent greater torque numbers than SKYACTIV-G engines, with Mazda planning to pair the new design with a supercharger.

This means Mazda's new engine will have to carefully dial in some of those parameters to adjust for the variables it can not control.

Mazda's combustion method is tagged Spark Controlled Compression Ignition. Instead, it uses compression ignition to create a spark which combusts the fuel-air mixture.

To that end, Mazda says it is taking a "wheel-to-wheel" approach in its mission to reduce emissions over the vehicle's entire lifecycle, with the aim of achieving a 90 percent reduction by 2050. As in other forms of combustion, this exothermic reaction releases energy that can be transformed in an engine into work and heat.

Volvo also recently announced all its new cars would be built with electric or hybrid engines from 2019.

Mazda's compression ignition, which will reportedly debut in the next generation Mazda 3 as early as next year in some markets, is the first commercial application of the technology.