Some more drawings of the FW190C

[Azimech]

I think it's the oil cooler.

[T}{OR]

Makes sense. The intake pipes aren't running through it.

[Fliegenpilz]

Wow! Nice drawings... did you make them by yourself? And, is there a website or something similar where more of those can be found (with cockpit details like here)?

Greetings, Fliegenpilz

[swiss]

Originally Posted by Fliegenpilz

Wow! Nice drawings... did you make them by yourself? And, is there a website or something similar where more of those can be found (with cockpit details like here)?

Greetings, Fliegenpilz

Some here: http://www.ufindbook.com/ebook-histo...52-part-2.html

-> click ebook search and dl

[JG27CaptStubing]

Originally Posted by Azimech

I think it's the oil cooler.

Actually it's an intercooler to keep the air going back to the turbos from Frying them...Also lowering the tempurature makes the air thicker. Interesting to see how its both Turbo Charged and SuperCharged.

[T}{OR]

Originally Posted by JG27CaptStubing

Actually it's an intercooler to keep the air going back to the turbos from Frying them...Also lowering the tempurature makes the air thicker. Interesting to see how its both Turbo Charged and SuperCharged.

TC's inter-cooler is below the cockpit - that big heat exchanger. If it indeed is the second inter-cooler it could only be related with SC, to cool the air after it passes through SC. Watch how the air/exhaust flows and how the pipeline is designed.

I would still go with the oil cooler, like Azimech said.

[swiss]

BUT:
1.
Looking at the blueprint it looks like:
SC->IC->Turbo->Intake
Which I think is odd, very odd. I would expect the highest pressure/temp rise passing the turbo.


2.
Another funny thing is the exhaust manifold and the tubing, outside the airplane.
@10K amsl you got what, -35°?
And your flying >600kph.
Now, cooling down the exhaust gases can't really add to the efficiency, or am I wrong?


Any thoughts?


EDIT:
Point one seems wrong after drawing some lines - but now the setup looks even weirder.




I mean, I would expect they bypassed the SC at some rpm level(And maybe shared the IC for it too), if my drawing are correct, it's more like Turbo->IC->SC->Intake.

[T}{OR]

Originally Posted by swiss

He was talking about the thing under the engine, which an oil to air "heat exchange device".
The big one in the belly is the IC.
Your 2nd point is right, the first one wrong, the compressed air never goes "back" to the turbo.
Also, the turbo has to deal with way higher temp(exhaust gases) then the compressed air could ever reach.
Usually it's like:
Filter(if there is)->Turbo(rise in temp due compression)->IC->Intake

Now I have to correct you on this one.

Turbine is just that - a turbine. Turbocharger is driven by the kinetic energy of exhaust gases. It does not use the same exhaust gases to feed the engine. It sucks in the same air the normal, mechanically driven supercharger would.

The only scenario where you would use (recirculated) exhaust gases is when you want to lower emissions set by certain standard (e.g. EGR valve). And this is way too modern technology for WW2.

Originally Posted by swiss

BUT:
1.
Looking at the blueprint it looks like:
SC->IC->Turbo->Intake
Which I think is odd, very odd. I would expect the highest pressure/temp rise passing the turbo.


2.
Another funny thing is the exhaust manifold and the tubing, outside the airplane.
@10K amsl you got what, -35°?
And your flying >600kph.
Now, cooling down the exhaust gases can't really add to the efficiency, or am I wrong?


Any thoughts?

I too think this would be odd. This is the way I understood it (twice as shorter route / intake manifold):

Exhaust valves / TC + fresh air => IC (for TC) => SC > engine intake valves (or manifold if you want).

[swiss]

Maybe because you misunderstood the drawing...

Red: Exhaust
light blue: fresh compressed hot air
blue: cooled down compressed air

I did not draw the point where the exhaust gases leve the system, nor the the actual intake.

Back to the 190:

Exhaust valves / TC + fresh air => IC (for TC) => SC > engine intake valves (or manifold if you want).

[T}{OR]

Originally Posted by swiss

Thanks thor, really, really, nice from you. Again, I am aware how a turbo system works.
Where, btw, did I suggest to return exhaust gases?

I honestly apologize if I offended you in any way. Please to re-read what you wrote (why I misunderstood you). Also, I just saw the drawing - which you added later on by editing the post.

Originally Posted by swiss

Maybe because you misunderstood the drawing...

Red: Exhaust
light blue: fresh compressed hot air
blue: cooled down compressed air

I did not draw the point where the exhaust gases leve the system, nor the the actual intake.

What you drew looks alright by me. Azimech also understood it like I did.