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Old 04-08-2011, 07:10 PM   #1
Blades
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Technology of engines may change ..



http://www.msnbc.msn.com/id/42460541...ce-innovation/

Despite shifting into higher gear within the consumer's green conscience, hybrid vehicles are still tethered to the gas pump via a fuel-thirsty 100-year-old invention: the internal combustion engine.

However, researchers at Michigan State University have built a prototype gasoline engine that requires no transmission, crankshaft, pistons, valves, fuel compression, cooling systems or fluids. Their so-called Wave Disk Generator could greatly improve the efficiency of gas-electric hybrid automobiles and potentially decrease auto emissions up to 90 percent when compared with conventional combustion engines.

The engine has a rotor that's equipped with wave-like channels that trap and mix oxygen and fuel as the rotor spins. These central inlets are blocked off, building pressure within the chamber, causing a shock wave that ignites the compressed air and fuel to transmit energy.....
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Old 04-09-2011, 03:24 AM   #2
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its like if they redesigned the rotary...

IF...IF oil companies let this go through it could be a new era....but they didnt want to work with the rotary(which is a better design)...that got squashed... interesting to see how far this goes.

edit: the video is from 2009.. not going anywhere.

oil companies are not interested in making much higher efficiency engines...
you think engineers cant or havent come up with designs yet? lulz. just gets swept under the rug.
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Old 04-09-2011, 12:45 PM   #3
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Quote:
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its like if they redesigned the rotary...

IF...IF oil companies let this go through it could be a new era....but they didnt want to work with the rotary(which is a better design)...
Those rotories are different. It was still a combustion engine. They are also less efficient.
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Old 04-09-2011, 12:54 PM   #4
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Quote:
Originally Posted by SiR View Post
its like if they redesigned the rotary...

IF...IF oil companies let this go through it could be a new era....but they didnt want to work with the rotary(which is a better design)...that got squashed... interesting to see how far this goes.

edit: the video is from 2009.. not going anywhere.

oil companies are not interested in making much higher efficiency engines...
you think engineers cant or havent come up with designs yet? lulz. just gets swept under the rug.
lies
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Old 04-09-2011, 04:20 PM   #5
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a rotary is a million times better design but no one else hopped on board. they didnt want to.

if most companies adopted it and it saw the collective r&d over the last 20 yrs...it would be pretty awesome. but that didnt happen so its wack


oil companies want you to drive semi efficient cars...just efficient enough to keep you happy but inefficient enough so they keep making huge profits.
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Old 04-09-2011, 05:17 PM   #6
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whats so great about rotary engine? isnt that how prop driven aircraft work
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Old 04-09-2011, 08:41 PM   #7
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whats so great about rotary engine? isnt that how prop driven aircraft work
He is talking about the Wankel engine
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Old 04-09-2011, 09:02 PM   #8
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whats so great about that? from the wiki pedia article seems to be less efficient, the only advantage is that its lighter.
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Old 04-10-2011, 07:52 PM   #9
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whats so great about rotary engine? isnt that how prop driven aircraft work
That's a radial engine.
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Old 04-13-2011, 10:51 AM   #10
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rotary engines from the rx7 were notorious for bad milage. which is why they were not used. could also have patents on the motor restricting other manufacturers from building and selling similar style motors. i think emissions was also an issue...or it was oil consumption. can't remember which one exactly.
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Old 04-13-2011, 11:01 AM   #11
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The rotary engine also known at the Wankel engine does not use pistons. It was used in the rx7 and I believe in the rx8 as well. It would use more gas and oil because the apex seal eventually goes and the engine would need to be rebuilt. The rx7 would last to about 120,000km and start to lose significant power after that because of the apex seal. Its kind of like a piston ring in a sense which has metal to metal contact which would cause it to wear. That and the combustion in the camber.

But did you ever see how much a good modified rx7 can make in power and how fast they are. Its worth the trouble if you ask me. Plus because the engine is moving in a circular motion the car is very smooth once its on and has little vibration.
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Old 04-13-2011, 11:24 AM   #12
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Quote:
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The rotary engine also known at the Wankel engine does not use pistons. It was used in the rx7 and I believe in the rx8 as well. It would use more gas and oil because the apex seal eventually goes and the engine would need to be rebuilt. The rx7 would last to about 120,000km and start to lose significant power after that because of the apex seal. Its kind of like a piston ring in a sense which has metal to metal contact which would cause it to wear. That and the combustion in the camber.

But did you ever see how much a good modified rx7 can make in power and how fast they are. Its worth the trouble if you ask me. Plus because the engine is moving in a circular motion the car is very smooth once its on and has little vibration.
people don't want to spend money every 120,000km to rebuild the motor and spend more money on gas and oil. they want efficient and maintenance free cars.
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Old 04-13-2011, 12:03 PM   #13
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people don't want to spend money every 120,000km to rebuild the motor and spend more money on gas and oil. they want efficient and maintenance free cars.
the cost of replacing the apex seals is not as bad as you might think. It would cost you more to do the timing belt and water pump on some cars which is mandatory after 100-180k on some cars.
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Old 04-13-2011, 12:24 PM   #14
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Some private companies also buy-out the inventions that people make. Which in turn the inventor is now set for life and the companies don't have to worry about such items making breakthroughs with automobiles.
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Old 04-13-2011, 12:26 PM   #15
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You know if the Germans invented something, tried it and gave up on it, it's probably gonna suck. Just sayin
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