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Hi everyone,
1."Piston's speed". Oops, sorry for misleading. This is not the reason, but additional (proven) factor.
2.Yes, electronic engines do not have injection problems vs RPM. It's clear, :-)
I already mentioned that in my previous post.
3.Here is one of diesels, where preheating is used - Wartsila. However, not solely.
Very modern models and 20 years old as well. Running on MGO / MDO / HFO. Small and big ones. High speed and medium.
Temperature controller is operated by pressostat, which is installed on air inlet manifold.
So, when engine is running below ca 40 %, the temperature controller keeps charge air appx 60 deg C.
If load is higher than 40 %, then controller keep the charge air appx 40 deg C.
*I hope not to be asked to post instruction manuals here...
Besides, I've never stated, that charge air temperature is kept high at nominal load.
Please read my previous post thoroughly.
And, there is nothing illegal, this design is accepted by all Class. Societies.
4. About "injection timing" and "bad atomization". Please have a look at diagrams below. All 3 are taken from one cylinder. This is my explanation.
P.S. Exhaust temperaures can not be used as reference for cylinder balancing solely. They are only relative indication of process.
Well, it's possible to have them all equally adjusted, however, this will not mean that all peak pressures (Pz) are equal.
This is the pressure force, what makes pistons moving, not temperatures.
rgds,
Andrei
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