change advances

[munro]

translated into layman's terms it means that if you inject after the tdc in the diesel fuel to burn,given its specifications and its combustion process,even with the exhaust valve closed and not finding enough oxygen,at this juncture,will not produce more heat and pressure?
and this is the end of the combustion on the inside of the micro particles of diesel only out of the cylinder,that is, the manifolds and the turbine, why? c'? the more air?? sorry doc, and the temperature is very high that the very first has triggered the combustion in this process,always with the discharge valve closed, and then heat and pressure are enclosed all in the cylinder,it has no influence in this thermodynamic cycle??with the post-injections,trattenedo all the heat and the press in the cylinder,in practice, we cannot "model" the thermodynamic cycle at our convenience, to try to prolong,as much as possible until it opens the exhaust valve "to break the eggs in the basket, "the phase of the useful" of the engine??

[cicciogsr]

if you care so much, I can even abstain... for duty of chronicle, and to the passion I have for the engines, the old jtd design ? called unijet means that for each ignition or combustion, or as a vuooi call are made only two injections the pilot and the main, which then in-turn are adjusted according to the load ... in the multijet to be put in the field a combustion pi? clean down the combustion phase, in parit? of diesel fuel to make it ir? slowly and gradually they have adopted the strategy of using 5 injections(including pre and post) for each combustion us? that it provides for less noise? minor production of unburned lower NOx production, etc., and above all it is introduced in the post injection, which serves to regenerate the anti-particulate

[munro]

with post injections I mean injections of diesel fuel, always with the discharge valve closed, but with the piston, which has crossed its pms.....

[munro]

if you care so much, I can even abstain... for duty of chronicle, and to the passion I have for the engines, the old jtd design ? called unijet means that for each ignition or combustion, or as a vuooi call are made only two injections the pilot and the main, which then in-turn are adjusted according to the load ... in the multijet to be put in the field a combustion pi? clean down the combustion phase, in parit? of diesel fuel to make it ir? slowly and gradually they have adopted the strategy of using 5 injections(including pre and post) for each combustion us? that it provides for less noise? minor production of unburned lower NOx production, etc., and above all it is introduced in the post injection, which serves to regenerate the anti-particulate

wibble I have not told you to refrain from posting your thoughts..don't misunderstand...I only said that if you want to do to make it the more understandable possible..considering the past of the case,between the two of us,that have led to misunderstandings...that said my friend maybe I just in this specific case, I can not understand there? that I would like to because from your responses to well-known a amusement impropia....the cio? said ground-to-ground, I say To you answer me, B, or much more likely your B and little clearly understood for my very small third media, but there? does not mean that it is not incomprehensible to others?.....now back more on the technical about to discuss purely of the thermodynamic cycle of a diesel common rail system with multiple injections,my thought about it ?:instead of having multiiniezioni to have a burning the most clean as possible why not to take advantage of this technology to get the maximum possible performance???the crux of my question ? all here!!!

[cicciogsr]

the post-injection is carried out in the latter stages of the combustion to increase the temperature of the exhaust, allowing the regeneration of the filter,the post-injection pu? also create a reducing environment required for regeneration of the catalyst with consequent reduction of the oxides of nitrogen.

[cicciogsr]

munro-I'm sorry, I don't understand pi? what do you want to know.. . if you want to open a post placed your maps, and we discuss them above with the numbers at hand... so? we are talking about the sex of the angels..

[munro]

ciccio wrote in my post a little f? what I want to know...turning,if possible,the post-injections developed to "clean diesel" in the post injections in order to have the massimapotenza available...

[munro]

said even more terraterra here I wonder if ? can create a cycle, diesel and pme we want the most powerful possible having multi injections that instead of sending diesel to the outside of the cylinder to clean a filter which is not me interssa nothing...inject es instead of one large main injection maybe "out of time", because c'? a lot of quantity? to be injected,the same lot is divided in the time-degrees engine the most optimal possible, to have the best in terms of performance...

[dott.chem]

translated into layman's terms it means that if you inject after the tdc in the diesel fuel to burn,given its specifications and its combustion process,even with the exhaust valve closed and not finding enough oxygen,at this juncture,will not produce more heat and pressure?

I hope I interpret the question.
It will produce?, but with a yield very very low, and with no contraindications, important.
The oxygen, even if in excess ? able to relieve the problem, not solve it.

and this is the end of the combustion on the inside of the micro particles of diesel only out of the cylinder,that is, the manifolds and the turbine, why? c'? the more air??

No, not why? c'? pi? air to where it was before, simply because? the "drop" exhaust in the combustion in those times.

sorry doc, and the temperature is very high that the very first triggered the combustion in this process,always with the discharge valve closed, and then heat and pressure are enclosed all in the cylinder,and has no influence on the thermodynamic cycle??

That heat, as you say, it serves to trigger the combustion process. It is one of the parameters which I wrote before, it depends on the speed? a rection. I would not want to enter too much in details, but in the specific, is changed to the factor pre-exponential of the "constant reaction kinetics".
And as if by increasing the temperature the better the trigger. But there? is worth at the beginning of the injection, while you can not improve the initiation of a reaction already? primed... don't you think?

with the post-injections,trattenedo all the heat and the press in the cylinder,in practice, we cannot "model" the thermodynamic cycle to our liking for to try to extend,as much as possible until it opens the exhaust valve "to break the eggs in the basket "phase useful" of the engine??

When the duration of injection ? very long (see the full load, and, a fortiori, for cars developed there? not ? can or maybe ? better to say that with the means at our disposal do not think it is feasible

[Chris156]

munro dott.chem you, " she repeated everything I said..
the "post-injection" you can take it only up to tot degrees..after do not need anymore to anything..just smoke and mirrors!!!

ciccio has reason..post your map and we will quietly..