Main Engine Lubrication System
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- Опубліковано 29 жов 2019
- The main engine of the ship needs to be maintained for efficient operation. The main engine lubrication system plays an essential role when it comes to marine engine efficiency and maintenance.
This video explains different types of main engine lubrication system present on board and how the critical parts of the main engine such as main and crosshead bearings, Piston, turbocharger etc. are lubricated.
The animation will help you understand different types of lubrication i.e. boundary, hydrodynamic, hydrostatic etc. which are applied while lubricating a 2 stroke marine engine parts.
Video Credit:
Ero Licuanan Ancheta
Saurabh Sharma
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Great effort by Marine insight for making this topic so easy.
the best video i watched regarding lubrications, thank you very much
Omg, This awesome method of learning how they explained love a lot now again thank you because tomorrow It's my exam and I learn it a lot of things on this channel keep going and best of luck in future
Thanks for sharing this well explained knowledge 👍🏽
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The best explaination I came across
Awesome 👍🏻. Please do share and support
perfect description
Extremely good video, thanks :)
Glad you liked it!
Thank you for sharing this explained videos
Excellent Sir..It helped me a lot in undersatnding..Creates lots of Value.
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really clear, thanks
thankyou so much for this video.. well explained
Thank you Arvin. Glad you liked the video. Please do share and support 👍🏻
Good information 🙏🙏❤️🔥
Thank you sir ....I found it very useful
Glad to hear that.
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Excellent 👍 Always helpful ,love from Karachi , Pakistan
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Very informative video
Wwll explained 👍👍
Thanks covered all points
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Thank you for the video helps me a lot, I have a suggestion Sir, please put subtitles on your next video sir, I can't quite follow sometimes and need to repeat the video again just to hear what you said Sir, but overall I gained more knowlegde and It was good teaching method.
Hi Gerardo
Thank you for your positive comment. We do put subtitles in all our videos. You need to switch on the "UA-cam subtitles" by clicking on the subtitle icon. If you stillnot able to see it, we will ensure the transcript is loaded with the video.
Love this video. So clear, so precise. Learning never stops. Good job!
Like and love this vidéo.it's very instructive
Thanks alot sir .. It helped me alot
Thank you Purushottam. Glad the video is helpful. Please do share and support 👍🏻
Thank you for sharing this topis sir.
thank you...
good learning video
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Wow...... nicely done.
Thank you! Cheers!
Thank you sir.. saved me from MMD now I have a clear idea
Glad to hear that
This was great thanks
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Nice work thanks. I want a video of comparison between two stroke and four stroke engine systems
Hi Deepansh. Thank you for the suggestion. Meanwhile you can refer to this article -
www.marineinsight.com/main-engine/why-2-stroke-engines-are-used-more-commonly-than-4-stroke-on-ships/
Good job👍
Thank You, Vitaliy 👍🏻. Please do share and support.
nice explanation sir.
Keep watching and support us 👍
Thanks a lot that was very usefull
Thank you Zicko. Please do share and support 👍🏻
very ncie video will be very useful for juniors
Yes, thanks
Nice..useful
Glad you found it useful 👍
Very clear and loud thanks marine imsight sounds familiar indina
Glad you liked it Brylle. Please do share and support. 👍🏻
This helping me a lot of time
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Good video
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Thank you [chief engineer] for this video.
Thank you. Glad you found it useful 👍🏻
Sir, can you please make a video of charging of refrigeration system
Please check our playlist on refrigeration system
Do more videos♥️
Sure. Meanwhile you can check engine room machinery related video already published in our channel-
ua-cam.com/video/QHS2qHY8xUw/v-deo.html
Nice work....thanx.. bt i thnk lub oil given to axial vibration damper....torsional vibration dampers have anullar mass rotating same speed of the engine in a viscous fluid (silicon)....
Hey Shibin,
lube oil goes to the torsional damper for lubrication purpose and not for dampening the torsional vibration.
Yes, Axial damper too is supplied with lube oil.
Please Explain How Thrust Bearing Lubrication is Done
Well Noted.
Please explain about man b&w engine main lubricating system from main bearing inlet how it goes in connecting rod .how crosshead lubrication done using telescopic pipe..and Wer is piston cooling outlet oil goes..
As explained in the video, main bearing inlet is separate. The connecting rod is hollow and oil travels from crosshead to connecting rod bottom end bearing. One part of the telescopic pipe is moving and attached to the crosshead, the other part is hollow and have enough length to accommodate the moving pipe from which the oil supply is done.
@@marineinsight what about piston cooling outlet .wer it goes?
It goes back to the crosshead. If you see the diagram at 5:50, you can see the outlet hole which aligns with the hole in the crosshead top part.
Hello sir good day,I had a question sir,that the purifier is taking two suction in the m/engine sump and also in a dirty tank,thank you.
Please explain more how does the lube oil go back to sump tank from purifier.. Thank you
Please check this Purifier playlist - ua-cam.com/play/PL_mDuIImDS9PCDjx_eYkzXpdF1wQ6DTfY.html
Through the purifier clean oil outlet. A centripetal pump in the outlet pumps it back to the sump.
Thanks you for sharing your meaningful information that inspired somebody..
HADIR
i love you
which is good for bearing and gear? mineral or synthetic? and which of these two is widely used in ships?
answeeer meee
Syntheticis better than mineral oil. Ship mostly use synthetic for long shell life and longer lasting.
Hello sir, I had a question that why can't we use sump oil for cylinder as well as piston lubrication.
Cylinder lubrication comes directly in contact with combustion chamber, hence more compatible oil needs to be used. For Piston cooling, usually same lube oil is used but supplied from the different system (tank, pipelines etc.) to detect leakage.
For main engine In the shell and tube type heat exchanger inside tube sea water or outside the tube sea water ?
Outside tube
Where does the cylinder lub oil goes after the lubrication?
Why crankcase oil and liner oil separating ?
Why lub oil pump taking suction from main engine sump and giving to cooler and passing to in engine. In JCW system the freshwater taking from cooler and passing to main engine why? What different between this two .
Thank you
Both are different systems.
CW system is different, LO system is different.
LO needs to be maintained at around 45°C as per operational requirements. Once under circulation it heats up and needs to be cooled down to 45°C for which LO cooler is employed.
Can you please tell us step by step to prepare and to make ME ready to start
Will make a video on it.
hello sir,i have questions about ME engine(electronics control engine) cylinder lubrication system,
1.what precautions need to take when engine operate at super slow steaming for long sea passage?
2.what precautions need to take when engine operate with low sulphur fuel oil for a long sea passage?
Monitor engine parameters and check for deposits. Check for leaks as viscosity of these fuel is very low.
Here The lube oil to main engine sump is supplied from the settling tank. So does it mean that purifier takes only suction from the sump and dirty return oil tank and not from the settling tank?
There is a provision to run the purifier from settling tank to settling tank. However, during normal engine operation, the purifier is operated sump to sump.
@@marineinsight okay thank you!
@@adarshwarrier6281 👍🏻
how many lubricator quill in main engine and is it fixed or variable?
4-6 depends on the size. Usually fixed.
Merci je souhaite la langue française
What happens with the spent cylinder lube oil please? It's now contaminated, but can't it be put back into the main fuel tank and burned like the rest of the residual fuel oil that's used?
it is considered as sludge and is to either be given ashore or be incinerated onboard.. it can't be used again in the engine in any way..
Can you pls tell, when a rolls royce engine is in stop codition why they have given logic that its lube oil pump will start for 5 min in every 24 hours once?
How many letters per vessel engine contains sir?
Can you please explain your query for clear understanding.
how often must the oil be changed ?
Running hours Recommended by engine manufacture (stated in manual or PMS of the company) and varies from engine to engine, and the type of fuel they use.
Please do check this helpful post - forums.marineinsight.com/forum/marine-engineering/3029-main-engine-system-oil-running-hours
But on my vesse we use sea water for lub oil tube type cooler
Yes, many ships use sea water. (Open loop system)
Why does cylinder oil feed rate decrease with increase in load ?
The engine efficiency is achieved when running at higher load as they are designed like that. When the engine is run at low load, the fuel burning will get affected leading to more carbon deposits which need better cleaning and hence more feed rate. Once the engine is running at higher load, the combustion process will get better leading to less carbon/soot deposits which can be cleaned by oil in less quantity.
Ok.....is it always true that efficiency will be lower during lower rpm ? And also tell whether the cylinder oil feed rate needs to be changed if we cut out a turbocharger given that there are 3 turbochargers but only 2 are in action ?
you dont speak about the viscosity and the heating servises
Pls avoid background music
What is lubricant
Lube oil
sir please make videos related to sulzer rtflex engine like removal of main bearing, bottom end bearing, overhauling , and other related videos. Thank you very much.
isn't this also a Warchila engine...?
So many inaccuracies in this video
Not what I want to read, when I came here to learn 😅