A runaway situation even for a small model diesel engine, is not for fun. Vertical A Frame Model True Diesel Engine Serial No. 1-017 Bore - 20 mm. Stroke - 40 mm. Fuel - A Mix Of Kerosene And Lamp-Oil. Built By Find Hansen Denmark
I had my runaway situations, when the engine failed to start after several start attempts caused by missing compression, it could be a sticking exhaust valve. Then after full compression again, the engine started with very heavy pre-ignitions because of the unburned fuel in the combustion chamber that ignited far to earley, and ran on that fuel for a few seconds with very high speed. That is why I made a safety valve, mostly to prevent the heavy pre-ignitions. I would like to thank you all very much, for your kind and warm comments. Best regards. Find.
hej et forslag til video, jeg ser mange ønsker at se en video hvor du bygger en at dine motorer , man kunne nøjes med de mest intressante ting, og tage det over flere videoer, hilsner fra klemensker
Fantastic! I cannot begin to understand the work that went into that engine but I can see it was huge. So much detail, everything done so well. You are a fine engineer sir and the safety valve is simple Genius. A very impressive engine and concept with the valve. If I had 10% of your skills and Smarts I'd be a very happy man. Thanks for showing us this.
Very sweet! How many liters per week does it use? I could listen to that idling forever! BTW, that's one Diesel that WILL fit in my Honda! LOL. (Old joke).
Beautiful engine. Thank you for sharing it! The large Caterpillar 3600 series engines I work on have cylinder pressure safety valves similar to this. Very good idea!
Thank you for posting! Seems like ancient history now, but in the 70's & 80's small kit engines were still made in the USA. Gasoline & steam powered were most common. Diesels weren't easy to find, but still available. This was to teach school children the basics of internal combustion engines, & inspire a new generation of future engineers... My personal experience as a child was with gas powered model airplane engines, & the Capsela modular toy set, from which a variety of cars, bulldozers, & boats could be built. Also water pump, air pump, for model aquaduct & water reservoirs to be built in a sandbox or terrarium
You can still find steam models, and glow and gas engine powered models are still around but certainly sold as "big boys toys". While IC power will always have a place in certain models it has largely been replaced by electric, brushless when you need all out power and brushed for when you need fine control of speed. Also small scale aeronautics has gone full high tech with FPV UAV's both winged and multirotor. Engine models like the one in this video are finely crafted pieces by a small handful of people, mostly retired machinists and mechanics that have dedicated themselves to making running art!
@@chrisegan7537 A hundred thank you's for your reply, Chris! I haven't thought about small scale model engines in 40 years. And the only reason it came to mind in the 1st place was my stumbling across this video. Cheers! 💜
@@chrisegan7537 Miniature jets have been around awhile now. But they're still very new to me. Here's a model aircraft exposition from germany I just found lastnight. I think you'll enjoy it. It has a couple of stealth SR-71's, & a VERY large F-series fighter jet. F14? F16? I could tell as a kid, but not anymore. Enjoy! ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-jyOuhaXcJCo.html
@@magnificentmuttley154 Model jets are cool, but I'm trying to find one of the OS glow rotary engines (like in a Mazda) to adapt to a tether car or RC car.
Your projects are always immaculate, when do you have the time? :-) The safety valve you have fitted was often fitted to old diesel engines in the early 20th century, it was not intended for over speed protection but for cylinder overpressure limiting to prevent blowing of head gaskets or in extreme situations cylinder liners splitting in high load conditions. Early gaskets and metallurgy had their weaknesses. A positive way to stop an overspeeding engine that was used by General Motors on their 2 stroke diesels was to have a spring loaded flap in the air inlet duct, the flap was held open by a cam and pawl, in an overspeed the pawl was lifted allowing the cam and flap to rotate and close the air inlet, it was a last resort stop as the high negative pressures developed in the inlet duct could draw the oil seals out of the Rootes blowers. Love your projects.
A very fine working Compression Ignition Engine model and demonstration the pressure relief valve function, very great job and highly respected machine works.
What a beautiful piece of engineering that is. All engineered to work well and look good - I agree that flywheel is particularly nice. And very interesting to hear the rough calculations of the forces involved - much bigger than I would have guessed. I bet that flywheel escape got your attention, I suppose it's fortunate that it isn't typically very high revs, but still quite a bit of mass and energy to let loose in the workshop. Thank you for posting.
Wonderfull, Your engines makes me calm and happy, it is so nice to se the craftmanship in what you do. My hands have let me down, so I have to enjoy other peoples work. Thank you. ;o)
Herzliche Grüße aus Österreich! Greetings from Austria! 👍 Danke fürs Hochladen! 👍 Thanks for uploading! 👍 Very good and beautiful, thank you! 👍 Sehr gut und schön, danke!
Would be interesting to put a belt driving a generator on it and see how many watts it can produce before stall. It'd be fun to see if such hobby engines produce enough power to still be useful.
I never would have put a safety valve on an engine like this. Mostly I just wouldn't have thought it necessary. It does make a certain sense here though
