Lost Energy from a Reciprocating Piston

[gmax137]

Consider a 4 stroke engine, with the piston at TDC on the intake stroke. The piston speed starts at zero and accelerates to its maximum speed. How do you think that happens?

 

[Drakkith]

I posted the topic for discussion. My goal is not to prove anyone wrong but to exchange ideas/views. If we do not openly share our thoughts, then there will be no discussion. Hopefully, we can all arrive on one conclusion. And if we still cannot agree, I will definitely not be the judge... but perhaps the readers may be able to. Thanks again.

The issue here is that reciprocating internal combustion engine technology is extremely mature, having well over a century of technological progress and billions of production examples. This area is very well understood and there is an objectively right or wrong answer here. It's not up for a debate or an 'exchange of ideas' in the sense that you can just claim something and have an inherent right to have people seriously consider your idea. If you're going to propose something and then disagree when people correct you, please have a valid reference supporting you.

If you can find a reference supporting your claim that there is significant energy loss due to acceleration/deceleration of the pistons, feel free to contact myself or another mentor and we can discuss reopening the thread. Until then, thread locked.