What a fantastic model ! 👍🏻😊 I dream about some day they become more popular so one can purchase a fully machined kit ! 😊 A good workshop would not be enough to build such a beauty with success ... Thanks for sharing the video, please let me know if one day you want to sell it !
I need one of these for our new automotive building at Weber State University. I can't find the model available in the US. Do you have any leads? Would you be willing to sell this one or make another?
Thanks for your interest. However, this is a one-off model which I do not intend to sell. One of my next projects will be building the first Daimler engine as a model, the famous so called ‚Standuhr‘. So, I am busy and cannot offer building a second Benz engine. Some months ago there was a 1:1 replica of the 1886 Benz Patent-Motorwagen incl. the working engine for sale (by a London based vintage car dealer). That would be a fine show car...
My model is based on parts which you can find following the link below. However, I made a lot of modifications to come closer to the original motor and to get the idle RPM down. For these modifications I do not have drawings. I did make drawings at the time but with a long outdated CAD system… www.ts-modelldampfmaschinen.de/gussteilesaetze-verbrennungsmotoren/verbrennungsmotor-karl-benz.html
Basically yes. However, modified. Higher compression, cam controlled ignition, which requires modifications to the cam shaft. Modified cooling (circulation). Different Spark plug. Surface carburetor...
It is an own design based on a cheap and compact high voltage generator. It worked very well but did not last very long. When I replaced the high voltage generator the new was defect after an even shorter runtime. So I am now back to a conventional ignition coil.
Hello Your engine does not miss a beat. Thats impressive as I have made one of these and like several others I have seen here it does not run anywhere near as well as yours. Please can you tell me if you made any changes to the cam/valve timing or to the inlet port?
Hi It took me quite some experimentation to get there. The video does not show the latest version. The engine runs even a little bit better today (lower RPM, easy start, no missing beat). Cam timing is not very critical. Closing and opening on bottom dead center works best. The inlet valve needs some attention to get it sealed. I milled a relief slot around the inner sealing surface so that pressure can build up on a smaller area. I do not know whether this makes a difference as I did it right from the beginning. Today I am using a conventional ignition coil with an electronic which reduces the current on the point. The key improvement, however, was increasing the compression ratio to about 5. I achieved this by an inlet in the upper part of the cylinder, which is basically a cylindrical part with an upper end which fills up the hollow part of the cylinder head and a bore inside. Quite unconventional but making the piston longer was not an option due to the mounting of the spark plug from the side. With the very low original compression ratio the fresh gas mixes with a lot of remaining exhaust gas so that it takes two cycles to get to an ignitable mixture. It took Carl Benz also a long time to get the engine to run as he has described in hit autobiography. So, struggling is part of the journey 😉
@@Hi_Tec Thank you so much. I also made a few changes to the basic model but with little improvement. I have used a home made long reach plug that goes right into the cylinder. I also added a degree of siphonic cooling taking a low point near the mount. I also increased the piston length but this is limited to 4mm by the plug protruding into the cylinder. I estimate the compression ratio to be only 2.5 : 1 after the changes. Is my understanding correct that by ''inlet'' you mean that you reduced the clearance volume with a plug that fills part of the void.
@@Hi_Tec I am surprised also at the similarities. I also have similar ignition points. Mine are slightly different as I have insulated the bottom one and made that low voltage so the cable does not need to flex. Would you be happy to discuss the surface carb you made. I realise you spent many hours researching and making these changes so I am grateful for the information you have shared already.
@@tonymarlow9555 I made the plug similar to the one I found in Carl’s book. The surface carb is quite simple and is not critical to make. There is the throttle body to regulate the amount of mixture (Carl’s car did not have a throttle). Then there is the mixture screw which allows to mix air with the gas coming from the fuel container (filled periodically in small doses from the tank). The mixture can be from zero fresh air to surely more than 50% freh air. In the fuel container there is fuel to a level of about 30% of total height. The incoming air comes through a pipe which goes about halfway into the container. Nothing of this is critical. The “problem” with the surface carb is that the mixture changes as the gasoline consists of different fractions, light to heavy. I use “green” gasoline for chain saws. More narrow fractions, less smell and “healthier” exhaust. Closer to the fuel used by Carl. The mixture needs to be adapted while the engine is running. Richer and richer as the light fractions disappear. Therefore, the mixture valve in Carl’s car was under the seat for adjustment during the ride. After a while you can hear the mixture changing as the exhaust sound changes with the mixture. I have ducted hot exhaust gases under the container to warm up the gas while the engine is running. This compensates some of the beforementioned effects. This was done by Carl, too. That is how this engine works. It's not a bug, it's a feature. This was the first IC engine which I have built so I had to experiment and study a lot, knowing it will work, finally, because Carl Benz did it long time before…
Just a simple air -to-fuel converter 😀 It is a high voltage generator, controlled by a contact at the camshaft. In 1886 Carl Benz used that same camshaft contact and a low voltage igniter in a separate wooden box which was almost of the same relative size. He called the ignition the „problem of the problems“. The low compression ratio makes it worse because a lot of burned gases from the previous cycle remain in the cylinder. Only when Bosch came up with the high voltage magneto the problem was solved (around 1902). The same kind of magneto is still used in aircraft combustion engines because of its superior reliability.
Yes, it is. Details how to make such a carb can be found here: ridders.nu/Webpaginas/pagina_benzinedamp_carburateur/dampcarburateur_frametekst_engels.htm Just make sure, that you can mix the gas with fresh air in a wide range. Heating the carb with the exhaust gas does help. I use „green“ fuel for chain saws. I do not have drawings.
True, I changed it already. However, not back to Carls solution as of 1896, as this was no solution at all. As he later wrote: Ignition is the problem of all problems. He precisely described the effort and pain to get the small and fast spinning (at that time) engine to run, allthough he was an experienced engine designer and maker. The "awful electronical junk" in the box was closer to his solution than a conventional ignition coil. But finally the ignition coil works better but is bigger.
Très beau travail ! Et le réalisme et la fonctionnalité est parfaite (je suis en train dans fabriquer un avec le kit complet et l'allumage)
My compliments very precise work
I was recommended to see it. This machine is still new
LINDA ê ÓTIMA MÁQUINA MODELO, VERY VERY GOOD, BRASIL OK.
What a fantastic model ! 👍🏻😊
I dream about some day they become more popular so one can purchase a fully machined kit ! 😊
A good workshop would not be enough to build such a beauty with success ...
Thanks for sharing the video, please let me know if one day you want to sell it !
...will do
Stunning!!!!
Gracias profesor
Its sounds like detroit diesel how cool!!!
I need one of these for our new automotive building at Weber State University. I can't find the model available in the US. Do you have any leads? Would you be willing to sell this one or make another?
Thanks for your interest. However, this is a one-off model which I do not intend to sell. One of my next projects will be building the first Daimler engine as a model, the famous so called ‚Standuhr‘. So, I am busy and cannot offer building a second Benz engine.
Some months ago there was a 1:1 replica of the 1886 Benz Patent-Motorwagen incl. the working engine for sale (by a London based vintage car dealer). That would be a fine show car...
Ciao, si possono avere le misure dei 2 serbatoio del carburante, e del rubinetto del acceleratore? Grazie mille
Tank: diameter 50mm, length 62mm. Surface carburettor: diameter 50mm, height 65mm.
Gas tap: diameter 22mm, length 17mm. // Serbatoio: diametro 50mm, lunghezza 62mm. Carburatore di superficie: diametro 50mm, altezza 65mm.
Rubinetto gas: diametro 22 mm, lunghezza 17 mm.
how do you make the machine?, and is there a blueprint file for making the machine?, if there is a file for making the machine, please tell me🙏😊
My model is based on parts which you can find following the link below. However, I made a lot of modifications to come closer to the original motor and to get the idle RPM down. For these modifications I do not have drawings. I did make drawings at the time but with a long outdated CAD system…
www.ts-modelldampfmaschinen.de/gussteilesaetze-verbrennungsmotoren/verbrennungsmotor-karl-benz.html
@@Hi_Tec thank you very much 😊
Is this the kit from TS Modell?
Basically yes. However, modified. Higher compression, cam controlled ignition, which requires modifications to the cam shaft. Modified cooling (circulation). Different Spark plug. Surface carburetor...
Magic
👍🏻👍🏻❤
Where can I get the ignition?
It is an own design based on a cheap and compact high voltage generator. It worked very well but did not last very long. When I replaced the high voltage generator the new was defect after an even shorter runtime. So I am now back to a conventional ignition coil.
Hallo
Ich habe das Motorkit gekauft oder die Pläne des Autos gekauft?
danke
Hello, wurde die Frage automatisch übersetzt? Ich kann nur ahnen, was gemeint ist. How about English?
Good evening
I bought the engine kit, or find the plans to make the car?
thank you
@@GG89220 hi can u share plan please
Hello
Your engine does not miss a beat. Thats impressive as I have made one of these and like several others I have seen here it does not run anywhere near as well as yours.
Please can you tell me if you made any changes to the cam/valve timing or to the inlet port?
Hi
It took me quite some experimentation to get there. The video does not show the latest version. The engine runs even a little bit better today (lower RPM, easy start, no missing beat).
Cam timing is not very critical. Closing and opening on bottom dead center works best. The inlet valve needs some attention to get it sealed. I milled a relief slot around the inner sealing surface so that pressure can build up on a smaller area. I do not know whether this makes a difference as I did it right from the beginning.
Today I am using a conventional ignition coil with an electronic which reduces the current on the point.
The key improvement, however, was increasing the compression ratio to about 5. I achieved this by an inlet in the upper part of the cylinder, which is basically a cylindrical part with an upper end which fills up the hollow part of the cylinder head and a bore inside. Quite unconventional but making the piston longer was not an option due to the mounting of the spark plug from the side.
With the very low original compression ratio the fresh gas mixes with a lot of remaining exhaust gas so that it takes two cycles to get to an ignitable mixture.
It took Carl Benz also a long time to get the engine to run as he has described in hit autobiography. So, struggling is part of the journey 😉
@@Hi_Tec Thank you so much. I also made a few changes to the basic model but with little improvement. I have used a home made long reach plug that goes right into the cylinder. I also added a degree of siphonic cooling taking a low point near the mount.
I also increased the piston length but this is limited to 4mm by the plug protruding into the cylinder. I estimate the compression ratio to be only 2.5 : 1 after the changes. Is my understanding correct that by ''inlet'' you mean that you reduced the clearance volume with a plug that fills part of the void.
@@tonymarlow9555 Interesting, I made the same changes to the plug and to the cooling. Yes, your summary of my "inlet" explanation is correct.
@@Hi_Tec I am surprised also at the similarities. I also have similar ignition points. Mine are slightly different as I have insulated the bottom one and made that low voltage so the cable does not need to flex.
Would you be happy to discuss the surface carb you made. I realise you spent many hours researching and making these changes so I am grateful for the information you have shared already.
@@tonymarlow9555 I made the plug similar to the one I found in Carl’s book.
The surface carb is quite simple and is not critical to make. There is the throttle body to regulate the amount of mixture (Carl’s car did not have a throttle). Then there is the mixture screw which allows to mix air with the gas coming from the fuel container (filled periodically in small doses from the tank). The mixture can be from zero fresh air to surely more than 50% freh air. In the fuel container there is fuel to a level of about 30% of total height. The incoming air comes through a pipe which goes about halfway into the container. Nothing of this is critical.
The “problem” with the surface carb is that the mixture changes as the gasoline consists of different fractions, light to heavy. I use “green” gasoline for chain saws. More narrow fractions, less smell and “healthier” exhaust. Closer to the fuel used by Carl.
The mixture needs to be adapted while the engine is running. Richer and richer as the light fractions disappear. Therefore, the mixture valve in Carl’s car was under the seat for adjustment during the ride. After a while you can hear the mixture changing as the exhaust sound changes with the mixture.
I have ducted hot exhaust gases under the container to warm up the gas while the engine is running. This compensates some of the beforementioned effects. This was done by Carl, too.
That is how this engine works. It's not a bug, it's a feature.
This was the first IC engine which I have built so I had to experiment and study a lot, knowing it will work, finally, because Carl Benz did it long time before…
Electronic Injection???
Just a simple air -to-fuel converter 😀
It is a high voltage generator, controlled by a contact at the camshaft. In 1886 Carl Benz used that same camshaft contact and a low voltage igniter in a separate wooden box which was almost of the same relative size. He called the ignition the „problem of the problems“. The low compression ratio makes it worse because a lot of burned gases from the previous cycle remain in the cylinder. Only when Bosch came up with the high voltage magneto the problem was solved (around 1902). The same kind of magneto is still used in aircraft combustion engines because of its superior reliability.
Hello. Nice work :-)
Is this a damping carburateur ?
Is it possible to get the drawings ?
Thanks in advance :-)
Yes, it is. Details how to make such a carb can be found here: ridders.nu/Webpaginas/pagina_benzinedamp_carburateur/dampcarburateur_frametekst_engels.htm
Just make sure, that you can mix the gas with fresh air in a wide range. Heating the carb with the exhaust gas does help. I use „green“ fuel for chain saws.
I do not have drawings.
Thank You for the infos !
I‘m make today a video from
my engine.
Regards :-)
@@robertpalt8901 Please share the link
@@Hi_Tec Here it is:
m.ua-cam.com/video/ybEmzGHl9yw/v-deo.html
Regards :-)
@@robertpalt8901 Great!
just spin the big fly wheel
Post more videos
Absolutely beautiful but get rid of the awful electronical junk in the box Karl never had that 😁
True, I changed it already. However, not back to Carls solution as of 1896, as this was no solution at all. As he later wrote: Ignition is the problem of all problems. He precisely described the effort and pain to get the small and fast spinning (at that time) engine to run, allthough he was an experienced engine designer and maker.
The "awful electronical junk" in the box was closer to his solution than a conventional ignition coil. But finally the ignition coil works better but is bigger.
How to buy this engine?
I‘m afraid you simply have to make one.
@@Hi_Tec I can not do that
Good
Think about video
1886