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Repost of "Is this possible or probably" mistakenl
I will get the hang of forum administration eventually:
Richard L post: I have read a few SAE papers on this topic - no details but passing comments, can anyone make some sense on the following claims: During the induction stroke, when water-mist/air is induced and passed the inlet valves, there is a progressive pressure drop as the piston is moving downward. Two things are happening concurrently - Further evapoarion of water droplets will accelerate due to pressure drop inside the chamber as well as the heated surroundings prior to the exhaust stroke. Water inejction will have a positive effect on the volumetric efficiency. It would be great with someone can say if that is possible or probable? I have no view on this claim. My response previously: Add to that the improvement in VE as a result of absorbing the heat risidual in the valve on the way into the cylinder, plus the heat of friction move past the valve (maintains charge density). Please add feedback. |
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