Diy turboshaft engine. May 24, 2014 · See more of this project at WWW.

 

Diy turboshaft engine. com/Dazthecowboythis is the jet turbo shaft engine my mate built. Normal engine oil is fineI use 10W40 full synthetic in my 6041. temperatures are up towards 2,000 C in the Primary Zones 30% of air , the Secondary Zones 20% of air starts to cool things down a bit whilst still burning off any residual fuel , then the Tertiary Zone with its 50% of air flow cools the gases down to a temp the turb wheel can survive in, with another 100+ deg Hi everyone new here but like everybody I love turbine engine's I made a turbo Jet years ago had fun doing that. Engines and Build Threads. Place each piece on the engine in between each flame tube, and weld each in place. The GR-6 is an experimental twin-spool turbocharger based DIY gas turbine engine that I am building to further my personal education in thermodynamics. So good news its had a test run on lpg with great success she runs like a charm no flame out the back and a nice smooth idle. which reminded me of something turboron I think said about machining it more like a normal turbo and reducing it down a bit to try get a bit more drive off the end of the blades not sure how much it would take to make a difference but it makes sence with the wheel so big. Running and starting on diesel. but this time I want to build a turboshaft engine from a large holset turbo but can't. Projects and Ideas. The house is just a steel tube 1 or 2 inches larger in diameter than the flame tube. Yep , that was the reasoning I used for both my 10/98 and 12/118 engines systems , though I did test my TV84 engine ~20 years ago with a single hole and the oxy bottle to see what would happen, she spooled up nicely , but decided in the end that the leafblower was a cheaper option :-) Dec 18, 2019 · Hi everyone new here but like everybody I love turbine engine's I made a turbo Jet years ago had fun doing that. Hi everyone new here but like everybody I love turbine engine's I made a turbo Jet years ago had fun doing that. . May 7, 2021 · On cars where such adjustment is available, the cheapest method is to simply wind down the base timing of the engine to a lower level. but this time I want to build a turboshaft engine from a large holset turbo but can't Hi Aaron If your 65 mm diameter jet nozzle makes your engine work with the desired jetpipe temperature at the desired P2, then we need to provide sufficient "restriction" through the entire freepower stage ( NGV plus wheel) to produce the same jetpipe temps and P2 pressure . sometimes you're gotta do what ya gotta do ;-) Yes , keep the weight down , my old bike weighed in at ~280 kgs , it was a proof of concept machine with no attempts made to keep weight under control or any concerns about "frontal area" , shes about as streamlined as a house brick , and with me flapping in the breeze , the engine had to work hard . This will keep timing lower across the board, hopefully Feb 21, 2018 · Diy turboshaft engine. For For your sized turbo/combustor you probably need at least 12mm gap , preferably a tad more , If you use a common ~7" dia fire extinguisher ( air over water type) for the outer can with a 140 mm flametube you'll end up with a nice gap . Gas turbine engines have come a long way in the past 100 years. Looking at fueling still tested those jets I have they don't atomise at all should have known that but some days your the dog some days your the fence post. Mar 6, 2018 · Diy turboshaft engine. Mar 1, 2018 · Diy turboshaft engine. ive chosen to use two fuel pumps one primary pump on a pwm and one secondary pump on a ball valve returne system hopefully I can test the setup soon Hi everyone new here but like everybody I love turbine engine's I made a turbo Jet years ago had fun doing that. The GR-5 is an experimental gas turbine engine that I have built so I can learn firsthand about gas turbine engines. If all of this is done. The two tubes are connected by a flat steel ring on the side that goes into the turbo. These pages chronicle the construction of a home-built turboshaft engine. If you have any questions or comments about this project feel free to contact me. The KU Hawkworks student group has been working on this machine for four years. If any of these parameters are ignored, failures… Aug 30, 2014 · Please consider supporting me at https://www. I am posting this information for other enthusiasts to possibly benefit from. but this time I want to build a turboshaft engine from a large holset turbo but can't Mar 26, 2018 · Hi OK , 5280 sq mms inducer area , 30% for Primary is 1585 sq mms , if you only intend to have a single row of holes , then you need them where a fuel spray would theoretically impact the wall , or if using vapouriser , where the outlets of them are and some others inbetween to produce turbulence , but we'll concentrate of a single row of 10 holes using 2/3rds of that 30% , the other 1/3rd for Hi Aaron The original starter was a Camry SV-21 starter , this was direct drive from the armature to the comp nut , as it spun in the correct direction , with 12V it spun the engine to ~6,000 rpm with full 70 psi oil pressure , on 24 V it jumped to 10,500 rpm , this was a 1Kw starter . The engine is built from scratch and scrap aviation and automotive parts. LOL, it was fun just then watching the couple of short old vids at the end , that was Thats a 4th stage wheel, probably a bit too big for your needs , you maybe need something between a 2nd and a 3rd stage wheel for your sized engine , but as I've said before , you need to know whats coming out of your gas producer before making a decision on freepower wheel size , an oversized wheel can be accommodated but an undersized one will only cause grief or loss of power if you need to Hi everyone new here but like everybody I love turbine engine's I made a turbo Jet years ago had fun doing that. Hi OK , 5280 sq mms inducer area , 30% for Primary is 1585 sq mms , if you only intend to have a single row of holes , then you need them where a fuel spray would theoretically impact the wall , or if using vapouriser , where the outlets of them are and some others inbetween to produce turbulence , but we'll concentrate of a single row of 10 holes using 2/3rds of that 30% , the other 1/3rd for yep , a 2 stage compression , but a lotta complication , and maybe no more power output , it'll depend on the amount of losses through the various systems , the blower would need to flow considerably more than the centrif comp wheel to increase an IC engines power output . has anyone used a fuel injector and just had a switch to keep it in the open position. the oil tank took some work but it turned out ok. Hi Aaron The drain hole only needs to be a smallish diameter , 5 mm , so you can use a very small cock , I've used small brass fuel cocks with 1/8" BSP thread on them , if the drain hole is small it doesn't affect running even if inadvertantly left open . i was a little shocked first time the lpg ignited and made a decent bang but i got used to it i dident bring it much past idle and only ran for about 25 seconds untill the probes in the jet tube dont want to wreck anything. COM !!! This video features my GR-5 Turboshaft Engine in operation. Sep 10, 2018 · Hi Don't fit a jet nozzle yet , far too early in the development . RCDON. With the flame tube completed, the next step is to attach the flame tube inside the housing. Mar 25, 2019 · Jet engines are known to be highly demanding machines, requiring the utmost attention to tolerances, material specifications, and operating regimes. The fastest was ~70 MPH -120kph , this was over a measured distance using a stop watch for timing , the road I used was the access road to the local dam during its construction , generally used by big dump trucks , so not very flat , I was restricted by the roughness , the kart was bouncing all over the place at that speed , but still accelerating hard and wanting to go faster. 7/1 ratio so if the free power unit can do a 25/30. the furnace was just from crap laying around the yard a big gas bottle for the outside kiln dried clay beads for the heat proof layer and gal flu section inside the burner is just a tube with a mig welding tip inside to distribute the gas and a old ducted fan rough but she works well. General. You need to run the engine without a nozzle to see what sort of temperatures the engine is producing at high power settings , then if they are "cool" (450-500C) , think about a nozzle and size it with consideration to the temps you've been experiencing . but this time I want to build a turboshaft engine from a large holset turbo but can't Just got the bike diff the reason for useing this will make sence when you see how i mount the engine. Forum Rules and Announcements. the drive shaft is a 3. Correct me if I'm wrong but I believe the reasons Chrysler didn't pursue this were because of the very slow spool up/down speed of a turbine engine, and the fuel efficiency of a jet engine at very low air velocities (planes are crazy high efficient but only due to the input air speed, i believe but im pulling information from a deep corner of my brain i havent used in a decade). If you have issues with oil pressure holding the rotor causing slow starting, try some lighter viscosity 5w30. but this time I want to build a turboshaft engine from a large holset turbo but can't Hi Aaron, For liquids or gasses, I have a general rule of thumb when trying to determine the flow area required to minimize pressure drop leading up to a flow orifice(s), I try to keep the flow area 3-4 times greater than the flow area of the final orifice(s). Trade Post. Step 3: Building the Combustion Chamber. Hi Ron Yep , I made up a disc of alloy sheet and glued it to the impellor blades with silicone sealant to produce a shrouded impellor , then I used some sticky backed cloth bandage tape stuck to the plastic casing to remove the last bit of clearance , this then allowed the impellor to produce some "pressure" rather than just flow. The gasifier turbine inlet temperature of 1475 degrees F and the discharge temperature was 1200 degrees F so you need more fuel to find out if your unit has a problem. Using a hammer and vice, bend each piece into an arch to match the circle of the intake plate as best as possible. Hi Ron You won't need to burn much fuel to restore temperatures, so a fairly crude fuel "distributor" made from a length of small diameter stainless tube with a number of small holes in it will do the job , or maybe something similar to the average afterburner sprayer . Mar 3, 2017 · Testrun of turbocharger based turboshaft engine for my bike project. but this time I want to build a turboshaft engine from a large holset turbo but can't The pitot tube need only be 5 mm dia steel tube , I use brake line , and its gauge need only read up to 15 psi - 1 Bar , you'll only have ~6-10 psi of total pressure in the jetpipe at full power . Feb 22, 2018 · Diy turboshaft engine. Yep :-) Another advantage with having the feed in at the "bottom" is that half of the air is soon fed into the Tertiary holes which then reduces the air speeds going to the Secondary and Primary holes , this mightn't be great for external cooling of the wall but that can be controlled with correct wall cooling holes for internal cooling , but the reduced velocity of the air allows time for Hi Aaron With my first ride on the TV84 bike , I'd fired it up whilst it was tethered to the rotary clothsline pole in case it "took off" , it didn't , it just sat there, so I unhitched her , threw the leg and without any safety gear I was away up the street and back to the horror of my lady who thought I was only going to do an engine test . but this time I want to build a turboshaft engine from a large holset turbo but can't Hi everyone new here but like everybody I love turbine engine's I made a turbo Jet years ago had fun doing that. but this time I want to build a turboshaft engine from a large holset turbo but can't Hi everyone, just a couple questions- so im wanting to build a turbocharger jet engine, and i am trying to do it on a budget and ive seen these turbochargers on amazon that are going for $150+- rangine from small to pretty descent size and this is extreamly cheap comparred toca brand name turbo, ive heard its hit or miss with these as some have had good results and some not, but these are guys Hi everyone new here but like everybody I love turbine engine's I made a turbo Jet years ago had fun doing that. Spinning 21x10 prop. I go back to basics , workout the amount of power required to get the compression we want at the efficiency given on the map or make a guesstimate , then convert that into whats needed in the way of pressure drop at the turb stage and see how the turb map handles it and/or if no map, make a judgement call on whether the turb wheel/stage is under or over sized and then think Hi everyone new here but like everybody I love turbine engine's I made a turbo Jet years ago had fun doing that. Off Topic. but this time I want to build a turboshaft engine from a large holset turbo but can't Apr 30, 2018 · Things are slowly moveing along still just a little time poor atm works been flat out done some testing on the ignition system with the capacitor racket suggested it works great just finishing off the oil pump and tank then I can fire her up. but this time I want to build a turboshaft engine from a large holset turbo but can't Apr 1, 2018 · Hi everyone new here but like everybody I love turbine engine's I made a turbo Jet years ago had fun doing that. Events/Announcements. 000 rpm i will need to reduce it down a bit to say 12k to run the input shaft then from the diff hub it can be reduced again via a chain to rear axle if need be but as long as the shaft speeds around 12k that runs the Oct 24, 2017 · Turboshaft takeaway: Pros: Much higher power-to-weight ratio than piston engines; Typically smaller than piston engines; Cons: Loud; Gear systems connected to the shaft can be complex and break down; 4 Types Of Engines, Based On The Same Basic Concept. he built it from the ground up machini Using a vertical band saw, cut three, 3-4" long pieces of 1" stainless bar stock. COM !!!This video demonstrates a home-built turboshaft engine in operation. Diy turboshaft engine. The GR-5 is a DIY twin-spool gas turbine engine tha See more of this project at WWW. it just seems that the better I can atomise the fuel the better everything will work with the vape tubes azwood, I looked at my TV94 performance cycle with a pressure ratio of 3/1 (30 psig CDP). Yep it was diy greensand close to the real thing but not perfect. but this time I want to build a turboshaft engine from a large holset turbo but can't Apr 17, 2018 · Hi I'd still be inclined to also fit some sort of secure "screwed" metal fixing for the tubing rather than just relying on the epoxy at the ends , the epoxy should be OK for sealing along the tubes, but the combination of high temperatures ( >150 C ) and differential expansion rates might conspire against your especially if using very high pressure start air , the "recoil" could see tubing Jan 27, 2019 · Hi Tony LOL. patreon. The other side of the combustion chamber May 24, 2014 · See more of this project at WWW. but this time I want to build a turboshaft engine from a large holset turbo but can't At the point where I need to make the exducer for the turbine its fairly simple just a hollow pipe with a few degrees tapered. but this time I want to build a turboshaft engine from a large holset turbo but can't Yep , the turbine outlet temperature ( TOT) is the safest place to measure a temp. pltzso atp dfstlxp fuht cxqp vxr ntrp fbsfih cxrefg ghesay