Hi Alex, first, I am NOT a diesel expert, just had a bit of training 50-plus years ago, and a bit of modern train while I was the emissions Engineer at a car plant.In practice the spray pattern is not allways conical, it is sometimes shaped using different sized holes and angles, more so laterly trying to satisfy emissions, again a reason for going to electronic control, however if you do manage to get a good spray of fuel at the right time and pressure with no drip you will have achieved something that many have not or would not attempt, me included, I had enough problems with all the right gear. I'm ashamed to say that if we did have some high smoke pumps and the destination didn't have tight emission control they would probably go depending upon how busy we were. Injection pipes also get very hot and are noisy, why I don't know.
I plan to control the amount of oil entering the engine with the cam lobe height and the oil pressure adjustment bolt .How are you planning to control the amount of fuel delivered per injection?
Your injector spray looks good but time will tell how it acts under the pressure of compression?
A very fine mist ignites well from the compression heat and has little smoke. Bigger droplets don't ignite as well and produce allot of smoke.
Keep up the good work.
In fact not possible without centrifucal regulator.I plan to control the amount of oil entering the engine with the cam lobe height and the oil pressure adjustment bolt .
A project of which I do not know the outcome !
The problem with both of these methods, is there is no feedback from the engines speed and they are not easily adjustable while the diesel engine is running. The cam lobe height is a fixed distance so your fuel oil delivery will be a fixed amount. The fuel pressure adjustment bolt has similar issues. Diesel engines speed is controlled by the amount of fuel injected into the cylinder. The amount of injected fuel needs to be controlled by the throttle and a governor with the governor having complete control.
I think the danger is what happens if your engine works better (makes more power) than you expected. Without a governor it could accelerate to such high RPM that it throws a rod or suffers some other catastrophic failure.Mechanicboy, Willyb !
If I just need the engine to run - I don't need adjust the speed , because I don't know if the pump and the injector are fine , so do I need that part ?
Minh-Thanh..I think the danger is what happens if your engine works better (makes more power) than you expected. Without a governor it could accelerate to such high RPM that it throws a rod or suffers some other catastrophic failure.