The Holy Grail Of Rotary Engines - SkyActiv-X

A SkyActiv-X Rotary Engine Could Mean An Efficient Wankel Engine
Holy Grail Of Gas Engines: SPCCI - https://youtu.be/9KhzMGbQXmY
How SkyActiv-X Engines Work - https://youtu.be/yNSxow3W7ek

Will Mazda create the holy grail of rotary engines? It was reported by Jalopnik that the VP of R&D for Mazda said there was a chance SkyActiv-X strategies could be applied to future rotary engines. In this video, we'll look at what changes to the rotary engine could result in great efficiency. This includes changes to the compression ratio, fuel injection, SPCCI lean-style combustion, superchargers, and using a pressure sensor to optimize ignition timing.

Jalopnik Article On The SkyActiv-X Rotary Engine:
https://jalopnik.com/mazda-may-apply-skyactiv-x-technology-to-a-rotary-engin-1830747175

From Mazda's Press Release regarding SkyActiv-X:
- SKYACTIV-X is the world’s first commercial gasoline engine to use compression ignition, in which the fuel-air mixture ignites spontaneously when compressed by the piston
- A proprietary combustion method called Spark Controlled Compression Ignition overcomes two issues that had impeded commercialization of compression ignition gasoline engines: maximizing the zone in which compression ignition is possible and achieving a seamless transition between compression ignition and spark ignition.
- This new proprietary combustion engine combines the advantages of gasoline and diesel engines to achieve outstanding environmental performance, power and acceleration performance.
- Compression ignition and a supercharger fitted to improve fuel economy together deliver unprecedented engine response and increase torque 10–30 percent over the current SKYACTIV-G gasoline engine.3
- Compression ignition makes possible a super lean burn4 that improves engine efficiency up to 20–30 percent over the current SKYACTIV-G, and from 35–45 percent over Mazda’s 2008 gasoline engine of the same displacement. SKYACTIV-X even equals or exceeds the latest SKYACTIV-D diesel engine in fuel efficiency.
- With high efficiency across a wide range of rpms and engine loads, the engine allows much more latitude in the selection of gear ratios, providing both superior fuel economy and driving performance.

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Link To 3D Printed Rotary Engine By Eric Harrell:
https://www.thingiverse.com/thing:3006071
Holy Grail Of Gas Engines: SPCCI - https://youtu.be/9KhzMGbQXmY

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Видео The Holy Grail Of Rotary Engines - SkyActiv-X канала Engineering Explained