Homemade Jet Engine 4.0 | complete assembly

[@empru4553]

So great to see someone who refuses to give up. The difference between the first design and now is outstanding.

[@Karebear9001]

Congratulations! I can’t believe how many years it’s been. Thanks for putting this up. Excited to see

[@daberni1120]

Ich verfolge deine Projekte jetzt schon seit Jahren und mich hat das alles so extrem inspiriert! Ich kann es einfach noch nicht glauben das ich in ein paar Wochen sehen werde wie die Engine das erste mal laufen wird :) Du hast mich vor einigen Jahren, während meiner Ausbildungszeit zum Industriemechaniker, dazu inspiriert selbst eine "Turbine" zu bauen. Ich hab mein "Turbinenprojekt" genutzt um mit meinen Ausbilder CNC-Fräsen, Drehen und Toleranzen beibringen zu lassen, dafür möchte ich dir danken! Und puff auf einmal sind ein paar Jahre vorbei und ich bin Entwicklungsingenieur für Rennmotorräder... Wahnsinn wie die Zeit verrennt.

[@SmartFilmProjects]

Es freut mich wirklich sehr, das dich dieses Projekt so inspiriert hat - Glückwunsch zu deiner Stelle als Entwicklungsingenieur!

[@MaranBros-ed4kn]

I frequently watch your videos, and they are very helpful to me

[@burnologist229]

Tip: you should use ceramic ball bearings made of zro2. they are high temperature resistant and have nearly no friction when compared to standard steel ball bearings.

[@FelixLetkemann]

Sieht richtig gut aus! Ich verfolge dein Projekt jetzt schon eine Weile und freue mich, immer wieder Updates zu sehen!

[@Adrian_Fleck]

Mega ich verfolge das projekt jetzt schon seid 9 jahen endlich geht es weiter XD

[@Radium_Productions]

Your persistence with the project is admirable. I think the compressor diffusor needs some re-design as it not only needs the vertical guide vanes that you already has, but it is also missing the horizontal guide vanes which radiate out from the edge of the compressor to the edge of the stator, the vane would allow you to compress air effectively by changing the path of the air. Hopefully this can help. Also, try using a larger compressor as this compressor is way too small for a turbine of that size.

[@Mirage2000H]

I agree, this way the compressor achieves a much lower pressure rise. I too suspect much energy is lost in the unguided swirl towards the vertical guide vanes.

[@maximelebrun8569]

Hey, amazing videos!!! I do however wonder why the diffuser does not have any triangular protrusions at the top, that actually do the diffusing? It seems like something relatively trivial to do, seeing all the amazing CNC machining that has been done allready? The air may be swirling around much more than is needed around the perimeter of the compressor wheel, instead of being guided, and expanded along the usual channels, which cause the pressure to raise. Can you please tell me why the blank top face of the diffuser? Thanks!

[@SingleMaltZombie]

Tolle Arbeit! Bin gespannt auf den ersten Testlauf!

[@3ricthestupid]

just as a question, how much normally do each of these CNC milled part cost?

[@ByDesignation]

can’t wait for the test run!

[@عالمالوحوشوالقوةوالافتراس]

Which battery-powered engine powers the jet engine?؟؟؟؟؟؟؟

[@MarcoFormentin]

Very nice and clean assembly, congratulations. However, I don't understand your choice not to make the diffuser with the inclined blades adjacent to the compressor, which are essential for directing the air flow. I also see the injectors that seem to spray towards the turbine. Instead they should be back flow to burn the fuel more efficiently. You probably also have the internal diameter of the injectors that is too large. It should be 0.8 mm or 0.6. Try making these changes and you will see that the engine will run without problems.

[@admranch8154]

i'm confused, how's the lubrication system works? is it not going to mix with the fuel? or is there some type of seal to contain the oil. any inputs would be a big help

[@Mister_G]

I have been following your build with interest, and it is nice to see an update. Without wishing to discourage you, I have some serious concerns about your beautifully machined turbine wheel - it looks (for example at 6:56 or 7:37) that your turbine disc is thinner at the centre than it is below the blades. I hope that this is an optical illusion, but if not: have you done any stress analysis on this design? The highest stresses will be at the hole in the centre of the disc (ignoring localised stresses at the blade roots). Normally, the centre of the disc would be thickest, tapering down according to a well defined mathematical curve until it widens again to the band that supports the blades. I regret that I can't read or write German, but I have tried to find this information in the pdf of the design, but have not found it. I really would like you to succeed, but if the cross section of the turbine disc is as I have described, please check the stresses, and if you run it, please, please, please be very careful and don't stand behind / beside it.

[@TurbineBoli]

Jup, bitte beachtet, was er geschrieben hat, ist mir auch direkt ins Auge gefallen, das kann euch schnell ins auge gehen =P

[@Mister_G]

Danke ! :)

[@LaserNYES]

where can i find the plans for this engine?

[@forloop7713]

Looks promising. You should definitelly run the engine without a nozzle first

[@BatnSahin-kanal.]

können sie bitte die linke schiken von vo sie die taeile gelauft haben bitte

[@reicht4]

well done, still waiting for the run.

[@boudchichemohammed9066]

Nice design great job.i hope that you can tested

[@christianflieger]

Benötigt man für das Verdichterrad zu fräsen einen 3D Fräser?

[@SmartFilmProjects]

Man würde eine 5-Achs CNC-Maschine benötigen. Man kann aber jedoch auch einfach einen Radialverdichter aus einem alten Auto-Turbolader verwenden.

[@christianflieger]

@@SmartFilmProjects Würde dies auch mit einer Y achse funktionieren?

[@SmartFilmProjects]

@@christianflieger ich wüsste nicht wie um ehrlich zu sein :/

[@christianflieger]

@@SmartFilmProjects Ok.

[@christianflieger]

@@SmartFilmProjects kzbin.info/www/bejne/aaOZiqp8e8Sng6cfeature=shared

[@shahid3520]

5:00 to 5:05, try reducing the length of the very small dia copper tubes that go inside the combustion chamber.

[@chloecohen]

good job can you give cad file from your engine?

[@mazin1977]

Is the CAD file open source?

[@dastfa8402]

how did u get the metals parts, it is online?

[@Erforschen]

Das war so gut , Aber warum kleine?

[@DanFrederiksen]

Nice. Any parts from inconel? how much did the parts cost to get machined?

[@yousefashry2897]

Is that kj 66? Did you increase its overall size?

[@sebas5688654]

Get starting the turbine!

[@Khalidabdurahman8]

How much price

[@NickyNooNah99]

This is the first of your videos I've watched so I'm asking this from a place of complete ignorance. But the steel basket (?) in the center. The holes in it seem very small. I would have thought this would result in a large pressure loss between the compressor and the combustion chamber?

[@MarcusKeeler]

I think that perhaps the word "Homemade" has a different meaning in Germany. Seems to me that most of the work was done by engineering companies.

[@christianflieger]

Wie kann man Sie kontaktieren?

[@digitalzoul57]

What language you speak the video title in English!!

[@ThePrimebeef]

ich wuerde auf keinen fall offene kugellager verwenden, das kann nur schiefgehen!

[@TurbineBoli]

Ausrichtung der Einspritznadeln bitte überdenken, beim Anlassen geht dad ganze Gas nicht dahin, wo es hin soll. Und die (Großen Bohrungen an der Brennkammer kommen mir auch etwas zu klein vor. Und beim nächsten Turbinenrad bitte um die Bohrung breiter Designen, wegen der Spannungsverteilung!

[@ezequielprojetos806]

maybe your engine won't work because your diffuser doesn't have the first stage of compression.

[@cullenwillett5747]

Centrifugal compressor is the first stage of compression. Then a vaneless diffuser followed by axial deswirl vanes. You don’t always need radial vanes if that’s what you are referring to as the first stage of compression

[@mola2646]

@@cullenwillett5747the compressed air Must flow from a centrifugal direction to a radial direction into the combuster

[@rmworldnews5430]

Great job sir how can I talk to you please I would love to work on a project with you I build and sell drones in Nigeria and I have a cnc milling machine please sir I would love to hear from you

[@muh1h1]

Das ging ja fix!

[@essentials1016]

Deutsche Ingenieurskunst!

[@sekretsekret8412]

Why do you need this engine? To show that you can do it? You have the ability and ability to do it, I have no doubt about it. But who do you want to surprise with it? General Dynamics or Pratt & Whitney? A more interesting option is to create a rotary engine and compete with Omega One Egine or X-Egine. I think you can do this. If you are interested, let's talk about this topic.

[@phamcongthang2669]

Hello, I came to this video after watching the test run videos. You made BS again, your engine cannot run even 100 years later, sorry for become rude. Here are some advices: you should read Kamps's book 4 or 5 times, or you will 'invent' some weirdo thing 1. Important thing about jet engine is "mass flow rate". The quantity of air it sucks per second equal to its efflux gas in kg. It means you have to carefully calculate and choosing the right compressor wheel and turbine wheel to make their flow rate are matched in design stage. Some random compressor wheels and your 'invented' turbine wheel won't work. 2. You have no idea how a diffuser works, that's why the air flow in compressor is easily breaked and produce no pressure 3. I just glanced at it and saw that your jet engine has so many problems, not to mention the design only, but also the poor workmanships: the material choosing, the tolerance in machining and assembly, dynamic balance...going back to my comment above, read Kamps or Kurt's books 5-10 times to equip yourself with enough knowledge, otherwise give up on this project or you will waste another 10 years

[@driverjamescopeland]

"...the company that milled this for us..." Not homemade.

[@markusbock6329]

Wer disliked das bitte?