How to make Jet engine (mini Jet engine)

[jonathankeith]

Whoah! This thing actually works. I glued mine to the back of my Toyota Corolla, and I got up to 250 mph! Then I ran out of lighter fluid.

[mjyanimations]

That’s not a fricking jet engine, it’s a series of fans blowing at a butane flame

[Mike-ffib]

Not even close to being a jet engine. It's a very poor electric blow torch.

[kirkbolas]

Your burner assembly needs to be placed inside the body of the engine along with a couple of baffles, one separating the 2nd & 3rd fan and another one behind the 4th to create the front wall of the combustion chamber. The first baffle should reduce the diameter of the air passage and the 2nd blade needs to have the tips trimmed to be just a wee bit larger in circumference than the pass through in 1st baffle. The hole in the 2nd baffle should be a little smaller than the pass through hole in the 1st baffle and the tips of blades 3 & 4 trimmed to be a wee bit larger than the pass through hole in the 2nd baffle. I suggest one more baffle at the end of the tube where the conical nozzle piece attaches. It should be about 75% the diameter of the outlet hole in the nozzle. Your fuel feed lines should be introduced about 1/4 of the length of the combustion chamber back from the 2nd fan blade baffle.

Will your engine work like a proper air-breathing reaction motor? Maybe. Right now your design lacks any meaningful back pressure. The narrowing of the pass throughs will create a marginally better amount of compression and speed up the airflow due to the improvised Venturi effect that the first two baffles provide.

The third baffle in the rear in concert with a defined combustion chamber will allow a modest amount of back pressure and as the combustion gas exits through the last baffle’s pass through, it’ll expand in the inside of the nozzle and push against the inside of the nozzle and the rear baffle as the gases are exiting through the nozzle; this in turn will create some modest amount of forward thrust according Newton’s 3rd law.

As an aside, with the modifications I’ve suggested, the fuel ports into the bottom of the nozzle can be repurposed with a secondary fuel supply and potentially act as a weak afterburner stage.
Good luck.

[aljhonm.parrera]

the title should be " how to make a gas stove"

[fixmymobilesireland]

USB powered electrically blown dual tanked oversized cigarette lighter with external manual timber-sulfur type ignition. I believe that would be more suitable title.

[btcgambler]

1.2m views as of this post x 12 minutes is 27.4 years of humanity wasted.

[leokimvideo]

Nice, kids where I live are sucking on BIC lighters and making metal cones not turbines

[thebikeguy]

idc whatever you people say but the work done by this man is still impressive. It's very cool dude keep the work going great job!

[snoorgat]

Yeah sure. Let’s glue the turbine fans. Totally safe huh!

[friedec]

in the jet engine, the air is compressed and there the fuel is added then ignited in the compressed chamber, so the thrust is multiplied by the expanding air.
And also the jet engine not necessary need turbine, as long it has continuous compressed air and fuel that exploded it can called a jet (turbinless jet is called ramjet engine) .

But this video, fuel is at the end side of blade. Moreover it ignited at the outside.

In conclusion, its just a rotor that bursting fire.

[RegisMichelLeclerc]

Nice job, but I see at least 2 big problems:
- all your fans are on the same axle, which implies the air flow is at about a constant speed from the second fan. My works on propfan showed each step must be spinning at a higher speed than the previous one, which is essential with contra-rotating fans to avoid gyroscopic precession, but the idea is still the same whatever flow you're working on.
- each subsequent step must be smaller than the previous one to increase air compression and thus speed at the output nozzle.

To combine the two, the simplest is to have a single motor shaft with belts and each fan on its axis (all collinear) and proportional gear reduction. It's a tad more complicated than this one (because of the bets and the separate axes), but it makes it much more efficient.

Also, how about soldering the pieces together (not even brazing or welding) once superglued to reduce the air leaks?

[rayeesmd]

That was for a children to get the appreciate the kid effort....Bravo....

[adrianreyes]

Very Cool! Although like the naysayers said, it is not a true "jet engine", as the combustion is not occuring between a compressor, and turbine, (yours is after the fan), the principal is still somewhat similar for demo purposes to younger people. Great job! You would be a great educator to spark interest for those who might decide to pursue the science of it further in life.

[bugraduzyol]

This is just a flamethrower and unfortunately not a successful one. I don't think you understand the principles of thrusting and engines.

[masmainster]

There's twelve minutes I'm never getting back.

[edgararcega]

"At last. Marshmallow toaster is complete."

[harryo]

That's not a jet engine, but still impressive and took time to make!

[amritdas-zwbu]

When i see oily skin and technical approach in video i first give the video a like than i watch the video❤

[v]

I knew something was wrong when the title said jet engine and the first thing he used is fevikwik....😆😆