Author Topic: IHC Titan 50 HP, 2 cylinder Doug Kelley, European version  (Read 8073 times)

Offline fumopuc

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Re: IHC Titan 50 HP, 2 cylinder Doug Kelley, European version
« Reply #15 on: November 03, 2021, 10:41:04 AM »
Hi everybody, there in early summer time was plenty of time in long evenings to do some more design work here.
Pistons and con rods had to be slightly modified to suit better to metric drill rod as gudgeon pins.
The CAD model in motion with the new parts, as mentioned earlier, the tappet and cam movement is switch off again, it will use to much graphic performance here.
The last picture was part of an old IHC parts catalog.
I have had the luck to find a PDF copy of this in Canada for very low money.
It seems that this picture was the basic for Doug and Jeff for their models also.
My focus here will be the cooling tower first to get an better idea about the over all dimension of the base necessary plate.
Kind Regards
Achim

Offline fumopuc

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Re: IHC Titan 50 HP, 2 cylinder Doug Kelley, European version
« Reply #16 on: January 23, 2022, 06:48:57 AM »
Hi everybody, I am here very far behind the actual build status of this project. I will try to catch up step by step.
Some remaining information concerning the CAD model and general layout first.
The cylinder heads and the vale train is available now.
Sorry for the irritation with valve springs at the picture below, this was for a general check only, I don┤t want to model the spring compressed by myself, this is a CAD model from the supplier. And sorry for the not final drilled ports trough the valve cages in the CAD model also, this is the very final job and I have not bring it into the CAD model so far.
The next CAD pictures are showing the engine with its man components nearly complete.
Including the first draft of an exhaust system.
Also the first idea for the cooling tower is getting shape.
Now I am able to get an overall idea about the base plate and the "how it all may be will fit together".
« Last Edit: January 23, 2022, 07:04:24 AM by fumopuc »
Kind Regards
Achim

Offline fumopuc

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Re: IHC Titan 50 HP, 2 cylinder Doug Kelley, European version
« Reply #17 on: January 23, 2022, 01:10:33 PM »
One of the last missing main components is the intake system.
To get a proper basic for a CAD model, a carb was necessary.
I have seen in some YT videos that the 3 mm carb from AP Engines seems to be the favorite.
First I made  a dummy CAD model of this carb with focus to the outer shape only.
For all my other engines so far, a 1:10 RC air filter was also part of that intake system.
Good that it possible to play around with it virtually, because in my eyes it does not look very nice.
First idea to modify the internals, so it will appear with less height now.
Looking better, but suddenly I have remembered the catalog picture.
Visible there a kind of intake air pre heater. Surely not necessary for this model engine, but may be an eye catcher.
Geoff has shown it at his engine at an earlier posting also.
Below a virtual assembly at the engine with this system.
It is a fake, there should be no surge connection to the exhaust heat exchange.
Plan is to isolate the pipes against each other, that as less as possible heat transfer is possible.
« Last Edit: January 23, 2022, 01:15:01 PM by fumopuc »
Kind Regards
Achim

Offline fumopuc

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Re: IHC Titan 50 HP, 2 cylinder Doug Kelley, European version
« Reply #18 on: January 24, 2022, 06:14:20 AM »
Hi everybody, nearly finished with the virtual layout of my build.
A tailpipe for the exhaust, to avoid that the engine will give itself an oil spray shower later.
The final virtual plumbing of the water circle could be done also now.
The cooling tower has got a slightly modification at its bottom plate.
Now it should be easier to get all coolant out if necessary.
The rack has been increased and the rack for a fuel cell was added too.
Last question to answer, how to get the coolant in.
A slot in the top plate and a little movable cover should be the solution here.
Kind Regards
Achim

Offline Admiral_dk

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Re: IHC Titan 50 HP, 2 cylinder Doug Kelley, European version
« Reply #19 on: January 24, 2022, 11:23:59 AM »
Nice CAD Work and it give you a chance to 'play arround with the parts'.

So I think that it won't be long before you commit to metal  :)

Per

Offline fumopuc

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Re: IHC Titan 50 HP, 2 cylinder Doug Kelley, European version
« Reply #20 on: January 26, 2022, 06:41:34 AM »
Thanks Per, I do like this virtual planing very much.
I.e. the idea that this engine should drive anything.
It should be a small generator, similar to the layout of Jeff, as he did it with his IHC Titan.
I have never build a  generator before so there was a clean floor to start.
Similar like the offers of PM, we have some suppliers here in Europe which do offer casting kits or partly machined build kits.
After studying all these different offers, the conclusion was to make something by my self.
It should be the very easy solution, an available e-motor, hidden in an old shape generator housing.
But the wish was also, that the collector and the brushes should be visible.
A small Chinese 12 Volt e-motor was ordered first.
The pictures in the suppliers offer has given me the idea, that it may be possible to open the motor very easily and to use the back plate in a modified shape for my build.
The pictures below hopefully will explain my way to go.
Kind Regards
Achim

Offline fumopuc

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Re: IHC Titan 50 HP, 2 cylinder Doug Kelley, European version
« Reply #21 on: January 27, 2022, 07:36:01 AM »
Hi everybody and now swarf again.
A nice job for the CNC mill, the generator base first.
Kind Regards
Achim

Online Roger B

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Re: IHC Titan 50 HP, 2 cylinder Doug Kelley, European version
« Reply #22 on: January 27, 2022, 08:22:31 PM »
The generator looks good  :ThumbsUp:  :ThumbsUp: You may also be able to use it as a starter motor  :)
Best regards

Roger

Offline fumopuc

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Re: IHC Titan 50 HP, 2 cylinder Doug Kelley, European version
« Reply #23 on: January 27, 2022, 08:36:56 PM »
Hi Roger, thanks.
Hopefully the compression of the Titan will win the battle against this tiny e-motor.
Kind Regards
Achim

Offline fumopuc

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Re: IHC Titan 50 HP, 2 cylinder Doug Kelley, European version
« Reply #24 on: January 28, 2022, 07:07:36 AM »
Hi everybody, next part to make the housing for the e-motor.
The front cover is a fake. The M 1,6 bolts doesn`t  fix anything.
The housing is a kind of cup to push the e-motor inside.
Kind Regards
Achim

Offline fumopuc

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Re: IHC Titan 50 HP, 2 cylinder Doug Kelley, European version
« Reply #25 on: January 29, 2022, 07:18:56 AM »
Good Morning everybody.
And now the for me most important part, the rear cover with the free view art the carbon brushes.
It is still running as e-motor, if there is 12 Volt connected to the pins.
If it will generate enough power to lighten some LEDs later, driven as a generator, no idea so far, we will see it much, much later, perhaps.
Over all, in my eyes, a small fun project.
Kind Regards
Achim

Offline Admiral_dk

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Re: IHC Titan 50 HP, 2 cylinder Doug Kelley, European version
« Reply #26 on: January 29, 2022, 11:17:51 AM »
Very nice reult Achim  :ThumbsUp:

Offline fumopuc

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Re: IHC Titan 50 HP, 2 cylinder Doug Kelley, European version
« Reply #27 on: January 30, 2022, 07:53:55 AM »
Thanks, Per.


Some parts for the base are prepared.
Mostly fixed at the mill with my vacuum table. A very nice toy.
There is a nice tool in Fusion 360 CAM to organize all parts in a specific way at a plate very easily.
This will be done at the CAM part only, not with the model at the design part.
The design model will kept untouched.
It has helped me here to find out which kind/size of brass plate has to be purchased. 
All plates are silver brazed together.
Kind Regards
Achim

Offline fumopuc

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Re: IHC Titan 50 HP, 2 cylinder Doug Kelley, European version
« Reply #28 on: January 31, 2022, 06:27:36 AM »
There was a small accident.
The heat of 2 camping stoves was a bit to much for the 3 mm brass plate.
During the brazing activities it has been so soft that the gravity could bent it.
Not a real problem, some smooth heat and the vice have solved the problem easily.
Next job to silver braze the top and bottom rails.
Now we do have a real stiff base.

Kind Regards
Achim

Offline fumopuc

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Re: IHC Titan 50 HP, 2 cylinder Doug Kelley, European version
« Reply #29 on: February 03, 2022, 08:17:15 AM »
Hi everybody, next step was the machining of the base to get flat surfaces at top and bottom.
The overall distortion here was much less than expected.
The whole thing has a bit a shape of a parallelogram, so I have tried to find the best suitable position of the hole pattern for cylinder and crankcase.
Kind Regards
Achim