FIVA valve ME ENGINE BASICS
Вставка
- Опубліковано 12 лип 2024
- 00:00 Start
02:28 Compare Cam & Camless engines
03:59 Fiva Valve Operation
04:46 Internal Parts of Fiva
09:12 Hydralic Diagram Explanation
12:46 MOP monitor CCU Fiva valve indication
14:28 Test
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FIVA SITE:
www.boschrexroth.com/en/xc/in...
This is one of the most simplified video I've seen so far. Thank you chief!
Thanks!
Correction regarding FIVA "safe" position. When the FIVA goes to safe position, the main spool moves all the way left (on the screen) by force from 4 balancing pistons, pushed by oil pressure, located at the right side of FIVA (on the screen) thus, oil pressure goes to exhaust valve actuator and keep exhaust valve open. That calls FIVA in safe position.
really nice explanation of FIVA valves working......looking forward for more videos from u
Thank you very much for putting such a nice explanation ! Looking for more videos on various maine systems.
SUBSCRIBED!😇
Thanks dear friend!
Really nice of you to share your thoughts with us. Keep it up. 👍👍
thank you very much for your videos and for the effort that you do!
Thanks Sotiris!
Your video instruction is great. It is quite useful.
Thanks try my best!
Sir,it is very helpful to us.thank you
You're one of the best marine engineers! Thank you so much for sharing your knowledge and experience with us! Wish you all the best and Merry Christmas!
(BTW... I've downloaded all ur videos and I'm gonna share them with the rookies on my next vessel)
Thanks alot Merry Christmas ! Thanks for your interest!
@@Adventure-Story I'm looking forward for your future videos!
The video presentation is perfect and expalanation is so clear. Very informative,it helps a lot. Thanks sir for the best information.
Thanks!
Excellent analysis. Thank you !
Welcome!
U are doing a great job. Thank you for sharing your experience and knowledge.
Thank you!
You're one of the best marine engineers! Thank you so much for sharing your knowledge and experience with us! This is a great for Ecuatorina Marine Engineers
Thank you!
Really helpful for marine engineers..😊😊
Thank you!
Thank you for the video
tnx simple and good .
Thanks soo much, really helpfull
Welcome!
thanks very good explanation
Hey nice explanation & good information too.Now world is completely into ME engine post as many videos as u can .I support you liked your video.
Thanks!
helpful video for learners
Thank you for info
Thanks for watching!
VERY GOOD DEPICTION
Thanks!
thank you sir for clear explanation
You are welcome
Thanks
thank you so much.
you video is very helpful
Thanks!
good job!
Very Good Video/ Thanks!
Thanks!
Today I learn fiva thanks
That’s great!
Ela
IA SU! Good explanation!
Thanks! 😃
Hello. This is awesome! Hope to see more animations about electronically controlled engines in the future!
А где, собственно, я сам могу пройти что-то наподобие таких курсов? А то летать куда-нибудь уж слишком накладно для моего положения пока что))
Станмслав я тут в Гречие проходил курс должен быть и в других стран компания плотила
Adventure Story понятно, спасибо! Видос крутой! Удачи вашему каналу!
Hey! Could you explain which application you have been used to simulate the MOP?
Hello MOP was given from MAN Prime Service Academy to make some lessons real is much better that one not working proper.
Thanks!
Is there any puncture valve in ME engine ..?? How ME engines are stopped??
Hello as i have seen. there is not puncture valve there .On the top there is only a suction valve.
If engine goes to stop position -neutral position of Fiva valve achieved and there is not any injection actuated.
Everything is electronically controlled by a very intelligent programm and algorithms.
All this parameters check really fast in the programm and compare all the values and the set points.
There is lot of things still to learn about this engines.
Thanks a lot chief!!
Sir, I have three questions.
One, What is 'L' line in the figure and what is the function of it??
Two, can the swash plate angle be differ to engine rpm?
Three, if the swash plate angle can be different, then is it related to fuel injection timing?
what is the difference between fiva valve and elfi or elva ? i think one of these act pilot valve
FIVA & ELFI are the same and have a similar function and these valves operate proportionally. The position of these valves is transmitted by a feedback sensor. Each cylinder of the ME engine has a dedicated CCU unit. For Example, 6 cylinders will have 6 CCUs
question: according to the drawing, the red "P" pressure line alway connect to the right side 4 pistions and main spool move lift?
Spool piece will need to come back later so any other connections that it has it is for the reason to created movement in case on side is drain when other side get under pressure other side will be drain and so on.
@@Adventure-Story thank you for replying me . my understanding is that: Red "P" port connect directly to the right side 4 small pistons and unable to be drained or released, it can be thought as a "spring". the pilot spool only control the left side piston pressed or drained, as the left side pistion is bigger than right side, it can generate bigger force and then main spool moved as required. waiting your opinion.
@@tonygao1341 mostly likely that small pistons are working like spring.
Please tell how to cut off one unit of MAN B&W 6S70MEC in emergency.
Hello if you like to cut a unit you just need shut the unit from MOP system. If you need more details i can look for it.
Nedd Help!!
The problem faced is that the pump plunger stroke of one unit is quite low compared to the other units and thus the exhaust temp/power output is low for that unit at low rpm of the of the engine (less than half ahead).
But at higher rpm (ahove half Ahead) the plunger stroke becomes ok and is about the same as othe units with not much deviation in exhaust temp.
Can you advise what is at fault FIVA or booster ?🙏
Hello have you try to check if signals are ok from fiva?
Make a auto tuning first.
they are so many new simulators from unitest poland but looks like no one can make a torent so we can download it too :(
what is responsible for the amount of fuel does inject on the cylinder cycle depend of the load of engine I mean on the MOP its is see that now we have 30% of fuel index where and what is resposibility for this because in the classic engine it is the fuel rack
Fiva valve control everything inje
@@Adventure-Story is it depend of the pressure HPS if there is increase pressure on fiva valve then is the fuel dose is higher?
Seems to be like this as the load increases more pressure increases in the system.
@@Adventure-Story it is very interesting what signal is exactly responsibility for precision dose the fuel into the booster pump :) thx for answer :)
No psb maybe pcb
Correct pcb!
Thanks