The Weirdest use of Glow Engines. is this for real?
11-29-2012, 08:50 AM
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RE: The Weirdest use of Glow Engines. is this for real?
ORIGINAL: Sport_Pilot
I do not believe there is such a thing, ablative is a method not a material. Perhaps there are materials that make this more feasible. It is a method where the heat is taken away by a cooler boundry layer. I don't know if spaceship one uses that, I doubt it does as it requires a relatively blunt surface such as the bottom of a capsule or even the rounded but rather blunt nose of the space shuttle. However it does have insulation. My point was that it does not require much, and that the feathering method used would not work for an orbital re-entry.
I do not believe there is such a thing, ablative is a method not a material. Perhaps there are materials that make this more feasible. It is a method where the heat is taken away by a cooler boundry layer. I don't know if spaceship one uses that, I doubt it does as it requires a relatively blunt surface such as the bottom of a capsule or even the rounded but rather blunt nose of the space shuttle. However it does have insulation. My point was that it does not require much, and that the feathering method used would not work for an orbital re-entry.
http://www.rtpcompany.com/info/data/...2299X53538.htm
http://www1.dowcorning.com/DataFiles...b281612fb7.pdf
Silica-EPDM
Carbon phenolics
etc
However anything you use as an ablative shield by definition becomes an ablative material - some Chinese reentry vehicles use oak.
11-29-2012, 10:25 AM
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RE: The Weirdest use of Glow Engines. is this for real?
That thing sounds as though it has direct fuel-injection.
If it does, most of the problems are instantly solved.
Any other fancy bits in that set-up ... perchance a valve or two?
If it does, most of the problems are instantly solved.
Any other fancy bits in that set-up ... perchance a valve or two?
11-29-2012, 10:29 AM
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RE: The Weirdest use of Glow Engines. is this for real?
Well, he got the attention he wanted, scam or not.
I wish I could have found a picture or video of the Tim Allen car engine powered cordless driver, it might have been the only other "on topic" post here..
And I recall an .010 powered generator somewhere too. How to replace a LiPo at twice the weight and 37 times the complexity and unreliability.
I wish I could have found a picture or video of the Tim Allen car engine powered cordless driver, it might have been the only other "on topic" post here..
And I recall an .010 powered generator somewhere too. How to replace a LiPo at twice the weight and 37 times the complexity and unreliability.
11-29-2012, 10:31 AM
#82
RE: The Weirdest use of Glow Engines. is this for real?
The fuel is injected into the intake runner like modern day cars. Snowmobiles have been using FI for quite a few years now.
It was common "back in the day" on cars to have a wet supercharger where the carb was on the intake side of the pump. It did make for and exciting explosion on occasion. Maybe "common" is too strong a word. The other way was to put the carb in an air tight box down stream from the supercharger. It worked OK also.
It looks like the engine in question used the wet supercharger. Another thing the long cylindrical object with the red, blue and black wires, I think is the starter for the engine.
It was common "back in the day" on cars to have a wet supercharger where the carb was on the intake side of the pump. It did make for and exciting explosion on occasion. Maybe "common" is too strong a word. The other way was to put the carb in an air tight box down stream from the supercharger. It worked OK also.
It looks like the engine in question used the wet supercharger. Another thing the long cylindrical object with the red, blue and black wires, I think is the starter for the engine.
11-29-2012, 11:57 AM
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RE: The Weirdest use of Glow Engines. is this for real?
makes sense low to no air would be great conditions for gp based engines and nasa is always trying out new things just like our military so i believe it just because we dont know about it doesnt mean that it isnt a unique and cool item to the one who collects this type of stuff,kinda cool to me.
11-29-2012, 12:06 PM
#85
RE: The Weirdest use of Glow Engines. is this for real?
ORIGINAL: kenh3497
Here ya go. Modern day 2C super/turbo charger
http://www.speedwerxstore.com/index...._detail&p=1449
Ken
Here ya go. Modern day 2C super/turbo charger
http://www.speedwerxstore.com/index...._detail&p=1449
Ken
Yes you can buy a superchager and bolt it on a two stroke, but all that will do is waste fuel and your wallet (the latter is the reason they are made). They won't actually supercharge the engine as the won't compress the air going into it. Read the wiki on the two stoke Diesel and you will see that even though it has a roots blower, it is considered a normally aspirated engine.
Actually you can get some minor boost but not much. Per the wike the diesel would if the exhaust valve is closedbefore the last part of the induction cycle, On glow and gas you would get a minor boost in the crankcase which would increase the initial induction on the cylinder. With the Diesel this is not a problem as this is just air and no fuel is wasted. But for the gas and glow two stokes more fuel would be wasted than power increased. However with a four stroke both power and effeciency are increased.
11-29-2012, 12:36 PM
#86
RE: The Weirdest use of Glow Engines. is this for real?
FYI, the engines used seem to be circa 1964 OS Max-S 30's.
http://www.osengines.com/history/ostimeline03.html
So I'm wondering if this engine could have actually be intended for NASA's Moon Project. Maybe to power the Lunar Rover The shuttle was probably not on NASA's plate in the 60's. And surely they would have used the most modern engines available when designing the shuttle in the 70's.
http://www.osengines.com/history/ostimeline03.html
So I'm wondering if this engine could have actually be intended for NASA's Moon Project. Maybe to power the Lunar Rover
The shuttle was probably not on NASA's plate in the 60's. And surely they would have used the most modern engines available when designing the shuttle in the 70's.
11-29-2012, 12:56 PM
#87
RE: The Weirdest use of Glow Engines. is this for real?
ORIGINAL: Sport_Pilot
Yes you can buy a superchager and bolt it on a two stroke, but all that will do is waste fuel and your wallet (the latter is the reason they are made). They won't actually supercharge the engine as the won't compress the air going into it. Read the wiki on the two stoke Diesel and you will see that even though it has a roots blower, it is considered a normally aspirated engine.
Actually you can get some minor boost but not much. Per the wike the diesel would if the exhaust valve is closed before the last part of the induction cycle, On glow and gas you would get a minor boost in the crankcase which would increase the initial induction on the cylinder. With the Diesel this is not a problem as this is just air and no fuel is wasted. But for the gas and glow two stokes more fuel would be wasted than power increased. However with a four stroke both power and effeciency are increased.
ORIGINAL: kenh3497
Here ya go. Modern day 2C super/turbo charger
http://www.speedwerxstore.com/index...._detail&p=1449
Ken
Here ya go. Modern day 2C super/turbo charger
http://www.speedwerxstore.com/index...._detail&p=1449
Ken
Yes you can buy a superchager and bolt it on a two stroke, but all that will do is waste fuel and your wallet (the latter is the reason they are made). They won't actually supercharge the engine as the won't compress the air going into it. Read the wiki on the two stoke Diesel and you will see that even though it has a roots blower, it is considered a normally aspirated engine.
Actually you can get some minor boost but not much. Per the wike the diesel would if the exhaust valve is closed before the last part of the induction cycle, On glow and gas you would get a minor boost in the crankcase which would increase the initial induction on the cylinder. With the Diesel this is not a problem as this is just air and no fuel is wasted. But for the gas and glow two stokes more fuel would be wasted than power increased. However with a four stroke both power and effeciency are increased.
I not trying to be a smart ***** but how do you explain the 50HP boost over the normally aspirated engine in the link I posted??? The engine in the sled in the picture is about 160HP. Some are as high as 180HP. I'm talking an 800 cc fuel injected two stroke engine. It is a high price to pay for 50 HP, but after working in the industry for a while, to some, it just don't matter as long as they win the HP race.
Ken
11-29-2012, 12:57 PM
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RE: The Weirdest use of Glow Engines. is this for real?
Well MJD the smallest generator I have found with my third search is this OS 40 Four stroke
[youtube]http://www.youtube.com/watch?v=VOayHpHfqfI&list=UU1EOIDc-NdgL73zZPaiO7pQ&index=17&feature=plcp[/youtube]
[youtube]http://www.youtube.com/watch?v=VOayHpHfqfI&list=UU1EOIDc-NdgL73zZPaiO7pQ&index=17&feature=plcp[/youtube]
11-29-2012, 01:49 PM
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RE: The Weirdest use of Glow Engines. is this for real?
Google: Cox .010 generator
From an interview with Bob Davis:
Bob: I had the privilege of working at the Lockheed Skunkworks, Boeing Phantom Works and the Navy’s Swamp Works—all advanced work projects in cutting-edge aerospace, producing diesel technology for UAV programs. One of our diesel-powered UAVs carried a gallon of fuel and could fly for 24 hours while generating its own onboard electricity and surveilling with video. We did 150 of those, and there were many other projects.
I produced Cox .010 conversions with generator drives for 6-inch-span micro-UAVs. These had twin-ball-bearing rear output shafts driving micro-generators to power the radio. The front shaft spun the prop.
From an interview with Bob Davis:
Bob: I had the privilege of working at the Lockheed Skunkworks, Boeing Phantom Works and the Navy’s Swamp Works—all advanced work projects in cutting-edge aerospace, producing diesel technology for UAV programs. One of our diesel-powered UAVs carried a gallon of fuel and could fly for 24 hours while generating its own onboard electricity and surveilling with video. We did 150 of those, and there were many other projects.
I produced Cox .010 conversions with generator drives for 6-inch-span micro-UAVs. These had twin-ball-bearing rear output shafts driving micro-generators to power the radio. The front shaft spun the prop.
11-29-2012, 03:58 PM
#90
RE: The Weirdest use of Glow Engines. is this for real?
Superchargers wont work very well on a 2-stroke unless the boost is fed directly into the cylinder above the exhaust port. Not real likely to work well. Now a turbocharger on a 2-stroke will work. They have been doing it on snowmobiles for a long time. The trick is that the turbocharger itself acts as a baffle creating backpressure which slows down the mixture traveling up through the transfer/boost ports and out the exhaust. I do not see a tuned exhaust system being as efficient since the turbocharger would disrupt the pressure waves, but what do I know..
I'm not saying a glow engine would run any better or stronger with a turbo (if you made one that small yourself) but the theory says it works.
I'm not saying a glow engine would run any better or stronger with a turbo (if you made one that small yourself) but the theory says it works.
11-29-2012, 04:16 PM
#91
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RE: The Weirdest use of Glow Engines. is this for real?
I'm sure I saw a 2-stroke design which employed a supercharger that fed into a rotary inlet valve.
Fuel was to be injected into the pressurised inlet manifold... like in a modern car.
Exhaust was via porting in the cylinder.
Fuel was to be injected into the pressurised inlet manifold... like in a modern car.
Exhaust was via porting in the cylinder.
11-29-2012, 04:53 PM
#93
RE: The Weirdest use of Glow Engines. is this for real?
ORIGINAL: kenh3497
Here ya go. Modern day 2C super/turbo charger
http://www.speedwerxstore.com/index...._detail&p=1449
Ken
Here ya go. Modern day 2C super/turbo charger
http://www.speedwerxstore.com/index...._detail&p=1449
Ken
Look close at the pictures. This is a belt driven supercharger
11-29-2012, 10:07 PM
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RE: The Weirdest use of Glow Engines. is this for real?
For a supercharger to work it must compress the air. It cannot do that with two ports open.
Maybe those engineers know a little more about it.
11-29-2012, 10:20 PM
#95
RE: The Weirdest use of Glow Engines. is this for real?
ORIGINAL: kenh3497
I not trying to be a smart ***** but how do you explain the 50HP boost over the normally aspirated engine in the link I posted??? The engine in the sled in the picture is about 160HP. Some are as high as 180HP. I'm talking an 800 cc fuel injected two stroke engine. It is a high price to pay for 50 HP, but after working in the industry for a while, to some, it just don't matter as long as they win the HP race.
Ken
ORIGINAL: Sport_Pilot
Yes you can buy a superchager and bolt it on a two stroke, but all that will do is waste fuel and your wallet (the latter is the reason they are made). They won't actually supercharge the engine as the won't compress the air going into it. Read the wiki on the two stoke Diesel and you will see that even though it has a roots blower, it is considered a normally aspirated engine.
Actually you can get some minor boost but not much. Per the wike the diesel would if the exhaust valve is closedbefore the last part of the induction cycle, On glow and gas you would get a minor boost in the crankcase which would increase the initial induction on the cylinder. With the Diesel this is not a problem as this is just air and no fuel is wasted. But for the gas and glow two stokes more fuel would be wasted than power increased. However with a four stroke both power and effeciency are increased.
ORIGINAL: kenh3497
Here ya go. Modern day 2C super/turbo charger
http://www.speedwerxstore.com/index...._detail&p=1449
Ken
Here ya go. Modern day 2C super/turbo charger
http://www.speedwerxstore.com/index...._detail&p=1449
Ken
Yes you can buy a superchager and bolt it on a two stroke, but all that will do is waste fuel and your wallet (the latter is the reason they are made). They won't actually supercharge the engine as the won't compress the air going into it. Read the wiki on the two stoke Diesel and you will see that even though it has a roots blower, it is considered a normally aspirated engine.
Actually you can get some minor boost but not much. Per the wike the diesel would if the exhaust valve is closedbefore the last part of the induction cycle, On glow and gas you would get a minor boost in the crankcase which would increase the initial induction on the cylinder. With the Diesel this is not a problem as this is just air and no fuel is wasted. But for the gas and glow two stokes more fuel would be wasted than power increased. However with a four stroke both power and effeciency are increased.
I not trying to be a smart ***** but how do you explain the 50HP boost over the normally aspirated engine in the link I posted??? The engine in the sled in the picture is about 160HP. Some are as high as 180HP. I'm talking an 800 cc fuel injected two stroke engine. It is a high price to pay for 50 HP, but after working in the industry for a while, to some, it just don't matter as long as they win the HP race.
Ken
11-29-2012, 10:25 PM
#96
RE: The Weirdest use of Glow Engines. is this for real?
ORIGINAL: eddieC
Proof's in the puddin', SP. Maybe those engineers know a little more about it.
For a supercharger to work it must compress the air. It cannot do that with two ports open.
Maybe those engineers know a little more about it.
What puddin? A snowmobile racer sputtering out half its fuel out the exhaust doesn't prove that the turbocharger will run a UAV or shuttle flap efficiently at high altitudes. It just will not work well for that purpose.
12-07-2012, 06:42 PM
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RE: The Weirdest use of Glow Engines. is this for real?
This reminds me of the story of the high dollar ink pens developed to function in zero gravity. The Russians used pencils...
NASA and the Russians both used to use pencils in zero-G, and the graphite dust and broken points floating in the air contaminated the electronics. An engineer named Paul Fisher, on hearing of this, developed a zero-G pen ON HIS OWN DIME and offered it for sale; both NASA and the Russians adopted it and use it to this day.
12-08-2012, 01:33 AM
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RE: The Weirdest use of Glow Engines. is this for real?
A snowmobile racer sputtering out half its fuel out the exhaust doesn't prove that the turbocharger will run a UAV or shuttle flap efficiently at high altitudes. It just will not work well for that purpose.
SP on ablative materials:
I do not believe there is such a thing, ablative is a method not a material.
I doubt this item was for the Shuttle, but the engineering is remarkable.
