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Old 08-16-2016, 10:50 PM   #1 (permalink)
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Default Nissan variable compression ratio tech

I thought this was going to be some kind of ersatz solution like Toyota's Atkinson cycle engine.

Nope, it physically changes piston stroke to vary the compression ratio of the engine.

Neat.

https://www.wired.com/2016/08/nissan...ry-compromise/
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Old 08-16-2016, 10:53 PM   #2 (permalink)
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Video of how it works here:

http://www.hotrod.com/articles/video...n-engine-know/
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Old 08-17-2016, 01:32 PM   #3 (permalink)
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I like the idea. Interesting the extra mass is easy to counter and produce more output than it takes. I hope they take this a step further to incorporate it for use with e85 and pump gas.

Honda had a variable compression engine, but it used like different sized cylinders and the engine used the VCM through the VTEC system to switch them off and on as needed, but either way you had a few cylinders that were inactive.



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