If you can read this, either the style sheet didn't load or you have an older browser that doesn't support style sheets. Try clearing your browser cache and refreshing the page.

(Yahoo)   New British engine could make single-stage space access possible, as well as improving a number of other aerospace industry designs, due in large part to a heat exchanger that cools intake air from 1,000 to -150 degrees celsius in 1/100th of a second   (news.yahoo.com) divider line 67
    More: Cool, idea, aerospace industry, Sabres, government investments, mining industry, thermoelectric cooling, European Space Agency, jet  
•       •       •

5354 clicks; posted to Geek » on 29 Nov 2012 at 11:17 AM (1 year ago)   |  Favorite    |   share:  Share on Twitter share via Email Share on Facebook   more»



67 Comments   (+0 »)
   
View Voting Results: Smartest and Funniest

Archived thread

First | « | 1 | 2 | » | Last | Show all
 
2012-11-29 04:02:26 PM

ZAZ: Under U.S. law when you file a patent application the government is allowed to seize your patent, ban you from talking about it, and use it for military purposes. Maybe the UK is similar.

The U.S. government tried to suppress RSA encryption when the inventors filed for a patent. They sent a patent secrecy order to R, S, and A. As I heard the story, S got the letter at home in Israel and laughed. Anyway, the Scientific American article couldn't be called back.

RSA is an example of somebody patenting a previously invented but secret technique. Governments already knew about prime factor cryptography.


That depends if the British government have learned the lesson of the jet engine. Frank Whittle patented it in 1929 and the British government refused to help him or fund him for ten years, until WWII was underway and the Germans had copied the technical specs from Whittle's patent.
Whittle had to let the patent lapse because he couldn't afford the £5 renewal fee.

The British government, and specifically the British civil service, always ignore stuff like this and refuse to help. A British company was years ahead of everyone else in building a supersonic plane, and it was a proper jet that could take off by itself, not a rocket plane that needed to be dropped from a bigger plane, but funding was cancelled just as the plane was completed. And they had been ordered to share all their data with the Americans, including the all-moving tailplane that even Chuck Yeager admitted was the key to supersonic flight. It was only months away from flying and the company got a second class letter saying "Project cancelled. Scrap it" Link
 
2012-11-29 04:27:54 PM
"We are not going to tell you how this works,"

Thanks then.
 
2012-11-29 04:33:55 PM
Well, I'm off to patent a theory on my cooler which works on a nest of fine tubes to supercool air in 1/100th of a second

/Apple and Sony and M$ can patent crap that doesn't exist yet too, so why not me?
 
2012-11-29 05:05:54 PM
Skylon has always been a long shot for me, so this is good news to hear its progressing.

/I'll refrain from commenting on its bizarre technical nature.
/problems always seem easier to solve when you don't fully understand the subject.
 
2012-11-29 05:20:49 PM

oldfarthenry: [i1151.photobucket.com image 499x300]
Her Majesty cordially invites you Yanks to blow it out your enormously overfed arses!


You mad?

www.morethings.com
 
2012-11-29 05:25:19 PM
How it works. Though it doesn't say what TFA says is the biggest secret; how to prevent it from icing over. 

And their engines look very phallic. Plus, I don't see the any incorporation into the design for the tank large enough to hold all of the oil that needs to be leaked to get it into orbit.
 
F42
2012-11-29 06:13:02 PM

Chief executive Tim Hayter believes the company could have an operational engine ready for sale within 10 years if it can raise the development funding.


10 years is code for never.
 
2012-11-29 07:03:49 PM
To make a car analogy,

this company has a revolutionary new engine design that will outperform everything on the market. It's turbosupercharged and intercooled, and when it's finished, It will quadruple power and fuel efficiency.

What they have done, Is shown us the Intercooler. It's a very nifty intercooler, but it is only an intercooler, and they have not yet to even begin with building the turbosupercharger, or the engine itself.

But hey, look at this intercooler. Isn't it shiny? It can do things no other intercooler can.

/It's neat, but it's not the revolutionary invention they claim until the rest of the engine actually exists and works.
 
2012-11-29 07:05:21 PM
http://en.wikipedia.org/wiki/Ayaks
 
2012-11-29 08:00:24 PM

madgonad: Yeah, the scramjet has been known and tinkered with for a long time. This company thinks it has found a way to do something different by solving a jet-engine limitation by 'instantly' cooling hot compressed air to -138c nearly instantly. Ignoring the energy cost to do such a thing (enormous), I don't see what differential they are using to cool the air. Moving that much heat is going to require the mother of all radiators unless they are injecting liquid O2 into the intake - in which case why not just go the scramjet route. This screams cold-fusion.


Liquid hydrogen or some other chilled flammable gas. Then you don't need to carry much liquid oxygen on your way out of the atmosphere, and the rammed high altitude air has the density to keep the boiled liquid hydrogen lit.

There's still issues with the fact you need a shiatload of fuel to get into orbit. Going from a dead stop to 11 km/s is a huge change, and once you get up past mach 1 air resistance is a biatch.
 
2012-11-29 08:12:00 PM
Good time to be alive.
 
2012-11-30 02:00:27 AM

cgraves67: Jubeebee: No patent, no prototype, no details, private investors only?

I'll believe it when I see it. So far there are a lot of similarities between this and the people who black box water into energy.

I'm a bit skeptical myself. When an inventor doesn't file a patent, it usually means they don't want to be subject to close scrutiny.


bbfreak: I will believe it when I see it. Yes it sounds fantastic, but keep in mind that Reaction Engines Limited has been around since 1989 and hasn't produced anything yet. These engine tests are as about as close as they've got past pretty ooh and ah concept art.


Jubeebee: No patent, no prototype, no details, private investors only?

I'll believe it when I see it. So far there are a lot of similarities between this and the people who black box water into energy.


Here you go, better article from the BBC - embedded video at the bottom: Link
 
2012-11-30 03:35:18 AM
Just as I thought. I'm really excited about the Skylon's dual engine. If I recall correctly, it'd be unmanned. That's a shame, but it's a step in the right direction launch tech.
 
2012-11-30 05:19:28 AM

Nebulious: Just as I thought. I'm really excited about the Skylon's dual engine. If I recall correctly, it'd be unmanned. That's a shame, but it's a step in the right direction launch tech.


If I recall, the British space program effectively has a ban on sending people or funding the transport of people into space. All of the Brits who've gotten there have had to do it by alternative means, and they don't take part in the ISS.

If you can put at least five tons of cargo uphill, you can put men in space. So if Skylon works then its a minor affair to make it into a people transport (mechanically speaking, that is. It will still take a mountain of paperwork to certify it.).

Personally I think it doesn't make much sense to have an air breathing engine on a ship that can be outside of the atmosphere in a few minutes. Nor is it sensible to make a body rigid enough to withstand extended high speed flight when you can do your acceleration in space. I think the weight of the additional engine technology needed could be replaced by adding a bit more fuel and saving the complication.

...Then again, maybe the people for Skylon see something that I don't.
Hopefully I'm wrong and cheap space travel is just around the corner.
 
2012-11-30 05:48:22 AM

way south: Nebulious: If I recall, the British space program effectively has a ban on sending people or funding the transport of people into space. All of the Brits who've gotten there have had to do it by alternative means, and they don't take part in the ISS..


Major Tim Peake would like a word in your shell-like...
 
2012-11-30 06:24:15 AM

dalmo: way south: Nebulious: If I recall, the British space program effectively has a ban on sending people or funding the transport of people into space. All of the Brits who've gotten there have had to do it by alternative means, and they don't take part in the ISS..

Major Tim Peake would like a word in your shell-like...


If it happens, wouldn't he be flying on the ESA's ticket?
I wouldn't know if that qualifies as them breaking with their old habits.

/Altho there's been rumors that they'll soon change their stance, so maybe its a moot point now.
/That aside: We cannot allow British cooking into space.
 
2012-11-30 12:51:59 PM

wildcardjack: madgonad: Yeah, the scramjet has been known and tinkered with for a long time. This company thinks it has found a way to do something different by solving a jet-engine limitation by 'instantly' cooling hot compressed air to -138c nearly instantly. Ignoring the energy cost to do such a thing (enormous), I don't see what differential they are using to cool the air. Moving that much heat is going to require the mother of all radiators unless they are injecting liquid O2 into the intake - in which case why not just go the scramjet route. This screams cold-fusion.

Liquid hydrogen or some other chilled flammable gas. Then you don't need to carry much liquid oxygen on your way out of the atmosphere, and the rammed high altitude air has the density to keep the boiled liquid hydrogen lit.

There's still issues with the fact you need a shiatload of fuel to get into orbit. Going from a dead stop to 11 km/s is a huge change, and once you get up past mach 1 air resistance is a biatch.


Everything I've seen implies that this is what they claim. Could somebody explain how this isn't robbing Peter to pay Paul? You have a certain amount of heat in the air, you transfer it to the hydrogen, and then you remix them back together to the original heat? Also where is the cooler? If it is before the compressor it is pretty silly (the air shouldn't be that hot, unless you are considering some sort of "two stage compression" where the first compression stage is when it hits the inner cone) after the compression stage the robbing Peter for Paul is even more pronounced since it should be time to add the hydrogen.
 
Displayed 17 of 67 comments

First | « | 1 | 2 | » | Last | Show all

View Voting Results: Smartest and Funniest


This thread is closed to new comments.

Continue Farking
Submit a Link »






Report