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help engineering

peppo82 said:
It was a long time that I was missing in this forum, fortunately 5 minutes ago I felt like taking a trip around here, and less bad than I did, dear little engineer, you're making me die, not only laughs, but also fear.... okok laughs perhaps is too much, it is not nice to laugh at who is driven by strong passion like you, we say I smile so much for your unbridled enthusiasm, and for your conviction of being able to process a 4 diesel times by adopting lines of principle. The fear arises from the fact that despite everyone trying to stop you to reflect, you continue to hunt new innovative solutions, you seem like a computer that is performing a routine.... .

Stop! !

I don't work in the automotive field, but I understand enough, both because at 17 I used to be a madman on the engines, as I think you do now, and because I had the opportunity to study them also from the thermofluidonic point of view.

the design then, is still another thing, and that we want, as far as the engines are almost entirely designed to the computer, by a team of expert designers and analysts under the guidance of very experienced motorists (experience at the counter) then after they are put on the bench, they never go like the last evolution of the previous engine, but it is practically the norm that they go worse. at the bench the motorists experts who guided the designers and analysts in the design of the engine, will have their nice to do with the tuning that takes time comparable to the design time, yet they have designed it.

to tell you what? that the engine is not an exact science, and it is rich in unknown even for those who have been working for 20 years, let alone for a 17 who can not listen (or read ) who tries to take it on the path of reason, so do not leave it saccentemente with a splinter of inventions one behind the other if you want to get something, so you will only make you many enemies, or at least, you will know very few people (one?) willing.

I suggest you focus on one aspect at a time, one... .

Anyway, and here someone will punch me definitely, the diesels just elaorate raising the pressure of the turbine, compatibly with the mechanical and thermal resistance of the various components. there is little more to process, you can't make it turn wonder how much faster, because the oil needs its time to burn, which is greater than that of the gasoline because the gasoline air mixture is heterogeneous, and this must evaporate in the room, and the diesel is less volatile than the gasoline, so the rotation speed practically imposes it in the first place the fuel, then the average speed of the piston.
retouch the valves is a waste of time, because the engine is slow, you do not have big problems of load losses in the valves, increase the diameter means to change the shape of the room that for a diesel is much more delicate than for a gasoline, change the diagram means to look for a coupling to a higher regimen, but you can hardly reach it (of course someone has reached the 6000 with a jtd but it was an intense but short emotion)

read a nice book about the engines of non-academic ones, clear your ideas and then focus on one aspect at a time.
Click to expand...
Excuse me only 1 second... who ever talked about processing a diesel or getting it to 6000 laps?
 
Then it is not true. diesel can also process it on the cam axes but it is not my intention to change anything. Then I recommend you read all the post and you will see that you will find the first drawings of the organs and for tonight I throw down the layout. I'm sorry but here we talk about design!
 
Piccoloingegnere said:
I'm sorry but here we talk about design!
Click to expand...
bhe, let's not exaggerate. . .
we are still at academic and "nuvolari" levels. . .
design is another speech.
If I see one pulling rows before doing 2 accounts the slaps piglio :mad:
(or rather, I see it every day in the office, but now it's a clinical case. any action becomes therapeutic anger)
 
take away my curiosity but what regime do you think it can turn?
diesels with higher system reached 5500 and were obviously pre-camera.
I'm glad you decided to consider the intercooler.. .
 
but who has ever talked about 5500? with a 107mm race then it's impossible! But are you inventing the data?
 
Do we do an ot... otherwise that moderator ot are?? ?

Let's talk about design.
They are all convinced to design, but...

"the designer is the one who produces a project, often of an architectural or technical design.

it is a professional figure with a own cultural heritage ed una Congruous experience think and conceive first what will be built after."We all look at our daily work. . .
who is who Really Are you planning? ? ?
 
ahhh we talk about design. .
I had to try!!

However it is giving your time to something useless, not only because unusable, but because it does not constitute a challenge, or an exercise, you are thinking of something, and then you will make drawings with the line perfectly useless. Tell me after you get better. . .

calculate the forces that would act on the biella of the engine that you are hypothesized and try to make a static resistance test, this is a challenge, you will have to find the way to find the distribution of pressures, calculate the inertias of the biella, and then find you a resistance criterion.. . .

How much air will your engine need? What pressure? impose these parameters, and look for your best as exercise, you know there are even too many techniques that if you learn you can say you are able to find the right turbocharger for a given use you want to make of the engine, and then you will have learned something.

search the internet for some basic or matlab program that allows you to calculate the limit cycle of your engine, and so you can see what happens if you change the pressure to the exhaust, if you increase the air input density, or change some geometric parameter, if I find something on my pc I pass it to you.

Try to think about how big your 2 bench bearings will be, you said you'll pick them up, okay, but how big? establishing the size of a bearing is an important stage of design and when you have done it once well, you will have learned something important to be proud of.

How much heat will it produce? Well it is not very difficult to determine how much heat will be exchanged with water and then that radiator to use once set the water flow or vice versa calculate the water pump once the radiator you want to use. When you learn how to do it, you will be able to measure a cooling system.

You can impose a mess of challenges, but they must be constructive challenges, otherwise you will throw away your time.
This was my last attempt.
 
make an account of the architecture you are developing because with all these changes in progress you don't understand much.
the reference to the 5500 was to warn you that in a diesel it doesn't make sense to go beyond the canons 4500 redline, in your previous intervention it seemed to have seen a 5200.. .
But I doubt you're developing a very common engine, I thought you were looking for something more innovative.
 
I agree with Group 82, in fact I had previously asked our little engineer if his intention was to design the engine or design it in all its aspects, but still he did not answer me. cmq, if you really plan to design a motor in everything and for everything, (which then I did not understand what kind of engine it is: V-based, double superpower, first without exchanger, etc.) I have to tell you: You don't understand anything. be clear, don't take it as an offense, I also study mechanical engineering and am a motor expert but I realized that, even to design an element like a motor tree starting from scratch, maybe not even the degree; and you want to do it with a scientific high school prep and some text you read for your own? Get out of the clouds.
 
Noo, I said, maybe I won't have a diesel of 5200 turns but one always present from 1000 to 4200.. .
However more tosto something I have it and is gasoline though, now as on the diesel are a little more behind with the drawings and being easier to be able to make a similar to those around I chose the latter. however it is not too trivial as idea = vr4 (type the motor of the golf r32, therefore a very narrow v), double turbo, big-bore etc etc etc. in short it is not common... . .
 
peppo82 said:
ahhh we talk about design. .
I had to try!!

However it is giving your time to something useless, not only because unusable, but because it does not constitute a challenge, or an exercise, you are thinking of something, and then you will make drawings with the line perfectly useless. Tell me after you get better. . .

calculate the forces that would act on the biella of the engine that you are hypothesized and try to make a static resistance test, this is a challenge, you will have to find the way to find the distribution of pressures, calculate the inertias of the biella, and then find you a resistance criterion.. . .

How much air will your engine need? What pressure? impose these parameters, and look for your best as exercise, you know there are even too many techniques that if you learn you can say you are able to find the right turbocharger for a given use you want to make of the engine, and then you will have learned something.

search the internet for some basic or matlab program that allows you to calculate the limit cycle of your engine, and so you can see what happens if you change the pressure to the exhaust, if you increase the air input density, or change some geometric parameter, if I find something on my pc I pass it to you.

Try to think about how big your 2 bench bearings will be, you said you'll pick them up, okay, but how big? establishing the size of a bearing is an important stage of design and when you have done it once well, you will have learned something important to be proud of.

How much heat will it produce? Well it is not very difficult to determine how much heat will be exchanged with water and then that radiator to use once set the water flow or vice versa calculate the water pump once the radiator you want to use. When you learn how to do it, you will be able to measure a cooling system.

You can impose a mess of challenges, but they must be constructive challenges, otherwise you will throw away your time.
This was my last attempt.
Click to expand...
This is a serious answer! thank you...
 
Piccoloingegnere said:
I'm not sure, trying to do something that vaguely resembles a project draft.
Click to expand...
I hope that you will realize that your answer is not clearly associated with any posts in particular and to understand who you answer you have to do some guessing and reread back to case some posts hoping to guess what: alcohol:
It is good creation, and an index of respect for its interlocutors, to quote the messages to which it responds, and to quote means to report only what it serves to understand its answers not kilometers of useless text.
eccecaxxo, you all look like first-time niubbis that you have never attended usenet and read three lines on the nettiquette :mad:
 
I still have to appreciate the calm of small engineer.
despite good legumes come, he never loses his calm and answers with grace, good...
I don't know if you're going to do it, because what you're proposing to do is a range that usually goes beyond the ability of a great technician.
engines are designed by teams of 40-50 technicians ... excluding the electronic part.
These are designers who have done only that in life and for many years.

I appreciate your fear. and therefore, in good luck.
I abstain from participating, talk about a field that I have never treated professionally.
 
maxopus said:
I still have to appreciate the calm of small engineer.
despite good legumes come, he never loses his calm and answers with grace, good...
I don't know if you're going to do it, because what you're proposing to do is a range that usually goes beyond the ability of a great technician.
engines are designed by teams of 40-50 technicians ... excluding the electronic part.
These are designers who have done only that in life and for many years.

I appreciate your fear. and therefore, in good luck.
I abstain from participating, talk about a field that I have never treated professionally.
Click to expand...
thank you maxopus but it is a duty to respond calmly and education with older people and definitely more experienced than me. I realize that what I propose is an almost impossible enterprise and ance for this I must bring respect. then I am here also to learn and the predictions are part of the iter.I hope at least to succeed in doing something.
 
Piccoloingegnere said:
ahahahahahahahahah dai così mi fai diventar rosso.
Click to expand...
hi little engineer I have to say that as many I am passionate about your business and let us say: It's always nice to see how small ideas can turn into big businesses.
seems a bit greedy against golias and how well you know all thief for davide.

Now leaving the pindaric flights, I just wanted to urge you to continue in your dream, my best professor at university always said to us: If I have to design a turbine, I'll take a catalog and size for my needs; why redesign it from scratch?

You're doing the same even though the only advice I can give you is to listen to those who have more experience than you and follow what you're saying "mbt" : do a lay-out and then choose the components not the vice-versa.

hello and good luck
 

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