The biggest problem has always been controlling exactly when during the engine cycle compression ignition occurred, something that you want as close to top-dead center as possible. Mazda's ...

Spark Controlled Compression Ignition (SPCCI) is a new method of combustion that allows gasoline engines to run on compression based ignition. In other words, it takes the combustion methodology ...

Passenger vehicles are powered by two main types of engines: compression, aka diesel, and spark ignition, aka gasoline. Besides the type of fuel they burn, what are the differences between a ...

In actuality, modern internal combustion engines come in two distinct varieties, spark-ignition and compression-ignition. These have several small, yet distinct differences. Before we get into the ...

GM recently debuted its homogeneous-charge-compression-ignition (HCCI) system in two drivable concept cars, a production-based 2007 Saturn Aura and Opel Vectra. “HCCI was a dream of engine ...

Yesterday at the Tokyo Motor Show, Mazda released new info on its highly anticipated compression-ignition Skyactiv-X engine. It's all a bit daunting if you're not an engineer, but helpfully ...

Spark Controlled Compression Ignition, as Mazda calls its proprietary system, works because it behaves more like a traditional gasoline engine despite the diesel-like technology and having a ...

Mazda has detailed the next-generation of its SkyActiv engine family, which will feature innovative compression ignition technology. While the new SkyActiv engine is still under development ...

The film emphasizes the importance of maintaining high-quality ignition components to ensure efficiency, reliability, and power in high-compression engines, while also discussing the effects of ...

The shorter version is this: Mazda wanted to build a Homogeneous Charge Compression Ignition (HCCI) gasoline engine, which can combust ultra-lean gasoline/air mixtures for big efficiency gains but ...

Mazda has revealed that it will introduce a new gas engine that uses compression ignition as part of its long-term tech development dubbed "Sustainable Zoom-Zoom 2030." Called Skyactiv-X ...

Homogeneous charge compression ignition (HCCI) engines combine a diesel's torque and fuel efficiency with a gas engine's cleaner emissions. The HCCI technique has been a goal of automakers since ...