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kamp_dogg

The World's-First Variable Compression Ratio Engine Could Kill Diesel Forever

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I read an article about a variable compression engine, with the statement that this technology could kill the diesel engine. 

gcnnaca2m6gqels73awy.jpg

It's basically a gas engine that can change it's compression ratio on the fly. (Ranges from 8:1 all the way up to 14:1).

"The ingenuity of VC-T engine technology lies in its ability to transform itself and seamlessly raise or lower the height the pistons reach. As a consequence, the displacement of the engine changes and the compression ratio can vary anywhere between 8:1 (for high performance) and 14:1 (for high efficiency). The sophisticated engine control logic automatically applies the optimum ratio, depending on what the driving situation demands."

Just thought this was cool and wondering for anyone who has a deep understanding of mechanical workings, is this really a breakthrough that could threaten the diesel engine or is this just hype?

The full article can be found here:

https://jalopnik.com/worlds-first-variable-compression-ratio-engine-could-ki-1785295848

 

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Good points. I guess I'll still have a job for a while longer.

  • Haha 1

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To get the torque they would have to be able to add fuel to the cylinders, when the valves are closed, to shape the cylinder pressure when the crank and rod are at 90 degrees. Doesn't look like they have done anything but make a heavy engine. Clever idea though.

 

 

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1 hour ago, kamp_dogg said:

Good points. I guess I'll still have a job for a while longer.

We're going to be burning liquefied dinosaur brains well into your retirement.

  • Haha 1

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I agree the number of moving parts/gears and potential for things to go wrong seems to be much greater in this more complex design. The youtube videos (1-4) were really good and help you to see how they are achieving this. 

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