Jet Engine Lube System
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- čas přidán 24. 07. 2024
- A look at the components of a typical jet engine lube system, and a simplified explanation of how they all work together. We use examples of each component from several different engines, and we go through some hand-made diagrams...
Piston engines need lubrication for the sliding of piston rings against cylinder walls, and lubrication of journal bearings. The oil also is used as a coolant, sometimes even sprayed on the undersides of pistons.
Turbine engines use high temperature tolerant oil to cool the roller bearings supporting the main rotor. The oil is also used as a lubricant for the accessory drive gearboxes.
Piston engine oil is higher in viscosity, and turbine engine oil is higher in temperature tolerance.
Engine oil has 5 functions:
1 - Lubrication
2 - Cooling
3 - Carrying away contaminants and wear debris
4 - Power transmission
5 - Corrosion prevention
#4 may seem odd. Think hydraulic valve lifters and cam phasers in piston engines. In Turbine engines, think vsv actuators and torque meters.
The functions are prioritized differently:
Piston engines 1 2 4 3 5
Turbine engines 2 3 1 4 5
That's my comparison. - Auta a dopravní prostředky
This channel is helping me a lot for my pilot licence exams, this is amazing 🤩❣️
as a pilot in training, this is absolutely priceless information. the more we know about the systems that keep us in the air the better. Amazingly useful video!
video after video of very high quality content. great photography, clear explanations, unique opportunities to see fantastic engineering. Fantastic. Thank you.
Chris Wesley give adrass
Why?
All the bearings I use in my demo videos like this have already been scrapped, so we can fondle them as we desire...
I'm no engineer, but I've wondered how turbine bearings and seals worked since I was a teenager. I've no idea why this always fascinated me, but this video provides answers that I could never find in the last 20+ years. Thanks.
Outstanding editing on this video. Great diagrams, and crystal clear explanations! Thank you for taking the time to put this together. It was really informative, and I enjoyed every moment of it.
I had NO IDEA how mechanically "straightforward" a jet engine was. It's extremely logical and far easier to understand in its principle than I ever imagined ... THANKS ENTIRELY TO YOU!
Thanks for the detailed explanations. One little nit: One cannot say that reduction of friction is less important than the other functions of the oil. A ball bearing has mainly rolling friction (between the balls and the inner and outer ring) and a bit of sliding friction (between balls and the cage that keeps them apart from each other. And that friction produces the heat and the particles the oil carries away. Secondly the oil is essential for the lifetime of the bearing because it gets pulled in between the balls and the rings. This prevents direct contact between the moving parts, drastically reduces friction and wear and tear. If rotation speed and oil viscosity at operation temperature are right then a thin film of oil performs that functions.
Did I say it was actually less important? If so, nit accepted.
There is something incredibly satisfying about components fitting together with such precision.
Thanks for the video,I live near an airport and hear them all the time. When I was younger I hauled a lot of J79s ,never new how they worked. Thanks for the education.
Jay, so well done, again and again. Every video you make. You remind me of the very best teachers I had in college when I took electronics. Thanks so much for your effort.
I'm so glad this channel exists. This is so incredibly fascinating.
Fantastic video. I’m a newer R&D industrial gas turbine test engineer and love learning from your informative videos. Thank you for so much great content.
Great video. It brings back memories of running the heated oil through the nozzles at a specific pressure and temperature to verify their flow rate. This was mostly on JT 8s and 9s at PW&W in the late 70s. I worked there doing assembly.
Excellent presentation. I don't have any connections with gas turbine engines but I was fascinated to see this and so impressed with the quality of engineering. Thank you.
thank you sir for your incredible time and effort in making these videos very educational
Thank your for all your efford, we're feeling all components and systems with your mentions.
Interesting video. Very much same route used by every racing engine builder on dry sump engines. Oil pump works exactly same, we have 2,3,4,5 and sometimes 6 scavenge ports.
Typically on a racing engine (NASCAR, F1, IMSA) the oil is filtered after it comes out of the engine. This is to lessen the contamination to the rest of the system if the engine has an issue. Plus oil is warmer after it leaves the engine and takes less HP to move through the system. We have run engines with filters on both sides of the pump (in and out) with no issues. We have oilers spraying on the pistons to cool them. But I'm sure if you have an major engine issue, everything gets clogged with engine bits, same as we do, and its pretty much junk after that. Always cool to see other folks designs, ideas.
Maybe you know this: when was dry sump lubrication introduced for automotive racing piston engines?
@@AgentJayZ mid to late 70’s I believe for NASCAR, early 70’s for F1, not sure on other series
Excellent overview of the lubrication system. Thank you for taking the time to put these presentations together. Very educational.
this is an awesome video for the Oil & LUBE portion of Aviation Maintenance. I grad from Rock Valley College Aviation Maintenance Technology A&P program. I don't think my instructor explained as good as you did in this video. Thank you for sharing!!!!
nice to see a channel in which not a single video contains ads
All of your videos are great but this one is exceptional. You did such a great job of explaining the concept and following it through with the actual functioning parts. Thank you for the effort, it made this video a great educational treat.
Excellent explanation, can really see your knowledge. You explain everything in such Laman terms. I could watch this stuff all day.
You are an absolute legend, this video helped me get a distinction in my lubricants and lubrication systems assignment in level 3 mechanical engineering, thanks so much Jay!
Exxxxcellent !
Now... let's discuss the matter of my fee...
Hahahahaa! I could pay you 2 Canadian dollars, that's all I have here in the UK in your currency!
I worked for TMT Research where I machined the pockets on similar oil pumps and fuel pumps. Was fascinating work!
We received the various housings bare and ready for refurbishing. It was nice to see the actual assembly.
Thank you!
I really appreciate you maxing your videos well indexed and easily searchable!
Man, I almost didn't watch this one, turned out to be the most informative. Awesome videos man!
I am an automotive transmission tech and especially in the lubrication system there are similarities i.e. the pumps, orifices, thrust bearings ect. Also the converters have turbines and a stator. You are a wonderful teacher. Thank you
Thanks for the video it really helped me understand how the lubrication system works. The way you present everything is great!
I'm a aviation maintenance student and I found your video very helpful.
The love of turbine engines and there components, displayed into words another fantastic video
thanks
Excellent explanation. Thank you.
Thanks for taking the time out of your day to explain all of this to us, I have always been fascinated by jet turbine engines.
Well this is one of a kind channel. I have been watching these videos for a long time now and they sure are right kind of joy for mechanical engineer who is also into aviation :)
Outstanding job. I'm working on a heat exchanger for a lube-oil system at work and this was extremely helpful to my effort. Great detail and explanation. Thanks
I know for a fact your an excellent mechanic. watched a lot of your videos. But Im sure you missed your calling as an even better teacher. The way you explain and show things you could make a jet/turbine engine mechanic out of a 2nd grader. Why there would be 33 dislikes for this video is way beyond me. And ditto to what Chris Wesley said below. Well done....
thanks so much! What an awesome channel. I am a computer programmer from ZA, and I have no idea why I find your videos so fascinating. Best wishes! K
OK Jay,
I just reviewed this video, liked it & am commenting on it. A gas turbine lube system is for cooling most of all, with lubing & 'flushing' under that. A GSX-R engine makes lubrication for sliding surfaces a priority over cooling. Even an all roller/ball bearing 2-stroke piston engine has lots of sliding surfaces! Thanks again for the education.
Regards,
Darren
This is a great video! Love to the format in which you present the info.
Man you have a great amount of knowledge and I thank you for sharing it with You Tube for all of us to see and learn, I still am quite amazed at just how much power a jet engine produces for the amount of weight that is has.
thanks for your time to show all that. VERY OUT STANDING
Fascinating video, thank you for making it, I learned a lot about gas turbine lubrication. I work a lot on piston engines but would love to work on turbines!
These are incredibly informative videos. Thanks so much!
Very informative vedio👌👌👌👍👍👍
This was the first AgentJayZ video I stumbled upon. Since then, I've been compelled to watch the remaining 230 videos (even the really long one on blending). Keep 'em coming!
Thanks for this video agent Jay, to a student, as myself, helps a lot the explained details!
Well done, sir. Clear, concise, lucid.
Thank you!
Spectacular! Thank you for sharing - and showing! - on real equipment.
I worked for a company in Smith River that poor s epoxy repairs on engine oil pumps. I’ve mentioned them before, TMT Research Development.
These things are amazing! Especially the hight-tolerance fuel pumps.
This video was very helpful in prepping for a brief on my aircraft's (T-6B) oil system! Thanks and Semper Fi.
Bravo! Bravo! Bravo! Great explanation of jet engine oil systems! One other neat thing you might want to show the audience one day is the magnetic detection plug typically found at the very bottom of the gearbox. Simple device that detects any large pieces of metal that may float around the oil system. Early indication of a component failure in the engine.
Again great video! All the best!
The primary function of a lubricant first is that of a coolant! I am your humble no 1 fan fantastic vedios!
simply too good for any engineer to understand. Thanks Amaresh Sastry
Very good explained how the oil system of a jet engine works. Lot of things that I didn't know, and do know now! Thank you for sharing and keep up the good work!
Good description of jet engine lube system. Thank you.
Wow, another REALLY interesting video - many thanks for such great work!
Hats Off Sir, you are a great instructor!!!
Thanks for taking your time to share your knowledge
Gear rotary pumps. Beautiful. Thanks for such awesomeness
Great explanation. Thanks for taking the time
Sir , Thank you so much for your precised and explanatory videos, so clearly shows how all parts of a jet engine work. I enjoy every minute of your videos.
Thank you again.
Leon Tz
Great video, great diagrams ! Thanks !
Thank you very much for sharing your deep knowledge with us!
Another slick video to help us get our bearings! Jet oil system is cool indeed!
Seriously you put a lot of work into this. I especially like the intro about the purposes of oil. That set the smooth roll out of the rest. I also enjoy reading your smart-ass replies to stupid questions that people leave. Your teaching style comes across as genuine in the video, not talking down to be people but being clear. However, turn the burners on the arrogant trolls!
Guys like you make CZcams great! Thank you!!
very good explanation of the oil system
Thanks a lot for all these details !
Absolutely a great video! very intuitive! keep up the great work!
amazing explanation really cool video to understand engine oil system
Hey, thanks for the info. As you can see, there is a real hunger for knowledge about jet engines. The engines I work with are based on older aviation designs that are no longer flying. We need to hear more from guys like you who are working with the modern stuff.
Fantastic explanation. Thank you so much for making this.
Excellent explanation, thank you
Wow, interesting channel, with great explanation. It's everything I wanted to know about the complexity of the turbine engine lubrication system 19:14 demonstrates perfectly how important to have the balls and shaft well sprayed with oil from multiple orifices. I bet more so when there is thrust involved. Bravo!
Excellent video. Thank you.
The reservoir is pressurized because at high altitudes there is not enough pressure to feed the pumps and Fuel/Oil coolers are used to prevent Jet fuel icing up since it likes to suspend water....and helps cool the oil of course hehe. Thanks for the videos
Great Video, super informative!
Fantastic videos thank you very much for them
Wow! The wet side of a turbine is revealed to me!
Thank you for this ray of knowledge, visible for people like me :)
Waiting for more.
Excellent work!!!
Thanks a lot. Beautifully explained. And a good year ahead, btw. 🍷 😀
Excellent work, tha.nks a lot for your video, it helps me a lot
Very interesting and well presented, as usual.
i follow almost all yr videos...perfect....thank y...
OMG, i was interested in the oil system of a jet engine since i was 10 yrs old :) and this, this is a very very nice overview. Thanks!
Thank you, that was excellent !
I love your detailed videos!!!
@lexichronicle2 This one took weeks, but only because I get shots as the opportunity arises.
Always nice to hear you like them !
Thank you very much for explanation.
Great source of knowledge thank you
awesome video.. Thank you for such an important information
brother, your videos are really really informative and helpful! keep up the good work! #Malaysia
you are the greatest man on youtube
very explanatory,thanks agent jayz !
Terima kasih atas tayangan vidiomya. bener bener mendidik dan berkualitas.
Better than Alteon. Thank you for understandable and perfect explanation:)
this is a master piece thank you so much
Thanks,sir. Fantastically interesting and educational video.
Thank you for an excellent presentation on a turbine engine lubrication system. I just found your channel and
That's a wicked looking axial radial bearing. Wishing I worked in the jet industry.
Another good job. Thanks
Fantasticlyexplained, thankyou.