GT50 Engine : Turbine Blade Casting & Fuel Nozzle Update
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- เผยแพร่เมื่อ 16 ก.ย. 2024
- Join us for an exciting update on the GT50 engine development, where we’ve made significant advances in two important areas: the advancement of our casting processes for super-alloy turbine blades and the development of fuel injection nozzles and atomisers.
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In all of my 27 years in helicopter engineering, I have yet to see a more innovative and promising helicopter than this very impressive Hill helicopter company- designed helicopter.
Fantastic work being done here. Well done guys, look forward to more updates
TRULY AMAZING ENDEAVOR ! Yes it's been done for decades, but NOT by a BRAND NEW COMPANY with the company mission like Hill has, truly amazing hope you will make it all reality !!
Quite fascinated tripping over your project on the youtubes, Jason. Impressive work in so many areas. Wondering, though, why you'd be still pouring your metal for the blade casting and not using some kind of countergravity filling method that Prof John Campbell advocates? I haven't personally seen it done anywhere yet, but I keep imagining a vacuum filling rig that fills through a ceramic straw that's on top of an induction fired crucible which can be kept flooded with an inert atmosphere. The head of metal for the fill doesn't have to be much more than half an atmosphere and by controlling the pressure drop rate you could regulate the mould fill with absolute precision with no mixing or turbulence in the melt.
this is fantastic vertical integration! well done guys
An engine not tested for decades, what could go wrong especially with everyone asking when they will get too see it actually fly & delivered
Are you guys using a centrifugal compressor because you guys are a start-up or are there are some new technology that I’m not aware of. I was under the assumption that axial compressors are more efficient
The possible pressure rise per stage of axial compressor is low, so with axial compressors multiple stages are always needed. With a relatively low overall pressure ratio (as is typical of small turbine engines and simple turbine engines) a single stage centrifugal compressor is sufficient. The single stage is less expensive, so it is the conventional choice for the simplest turbine engines.
The Allison Model 250 family (which is now the Rolls-Royce M250, M300, etc) is used in many small Bell and MD helicopters. Although it originally had a multi-stage axial compressor, some newer variants (the Series IV family) have a single-stage centrifugal compressor, including the RR300 used in the Robinson R66.
Nice video
Stop moving the camera around its so annoying. Technical info is great.
Naw... It's a cinematography technique to engage the viewer more. I quite enjoy it in particular on theor walk around because you can see a lot more.
Godspeed Hill
That's all good and dandy, but when are we going to see it fly?
Why casting and not forging?
Im surprised you're not using a slurry cast! Would you call this "investment" casting?
Does the second flow path in the injector open up once a certain fuel pressure is reached?
Is the carbonization process akin to case hardening? I was not aware that copper plating could selectively carbonize. That is neat.
Copper is a great IR reflector, I would imagine it's used as a means of thermal control in heat treating.
Why cast individual blades over machining? just cost? I would think blades that small would be insignificant cost to mill and important to get right
Look up single crystal casting.
@@ca_pilot I see. I didn't know alloys could be monocrystalline. That's cheating :) I'm guessing that's not a particularly inexpensive process.
Although the way he describes the process doesn't sound monocrystalline
@@DanFrederiksen Yeah I wondered about that too. Maybe the blades has some fancy internal cooling ducts?
What is the thermal efficiency of this engine at base load?
@GeorgeWadsworth are you asking about expected performance? They have not completed one of these engines yet, so there is no performance data.
@@brianb-p6586 I shall wait until then 👍🏼
🤗🤗🤗
I nearly made a very short sighted comment. The cultural revolutionaries are poking around everything these days. Ethno-nationalism and high tech fan blades are a bad combination. Needless to say, there are better ways of doing this.