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Duke Engines' incredibly compact, lightweight valveless axial engine
www.gizmag.com ^ | September 3, 2014 | By Loz Blain

Posted on 06/23/2015 12:50:20 PM PDT by Red Badger

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To: Red Badger

IHave a Jeep YJ that would benefit fron installing an appropriately sized TD.


21 posted on 06/23/2015 1:13:39 PM PDT by Paladin2 (Ive given up on aphostrophys and spell chek on my current device...)
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To: Red Badger
New Engine Technology Ping!...................

Not so new. They had the basic idea in 1911.

22 posted on 06/23/2015 1:13:52 PM PDT by DiogenesLamp
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To: Red Badger

Aviation could use an engine like this. I see them as an early adopter, plus the simplicity may mean more time between overhauls.

The other use would be standby generators. They are noisy and heavy now.


23 posted on 06/23/2015 1:14:16 PM PDT by cicero2k
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To: Paladin2

http://www.gizmag.com/wartsila-31-worlds-most-efficient-4-stroke-diesel-engine/38120/


24 posted on 06/23/2015 1:14:33 PM PDT by Red Badger (Man builds a ship in a bottle. God builds a universe in the palm of His hand.............)
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To: Red Badger

Not unlike an older GM A/C compressor.


25 posted on 06/23/2015 1:14:34 PM PDT by Paladin2 (Ive given up on aphostrophys and spell chek on my current device...)
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To: ProtectOurFreedom

The wear between the head and the cylinders will kill it.


26 posted on 06/23/2015 1:14:45 PM PDT by Rio (Proud resident of the State of Jefferson)
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To: ProtectOurFreedom
Inefficient at converting linear reciprocating to rotary motion.

How is a swash plate inefficient? If it does not produce heat, and I cannot imagine that it does, or at least not much, how is it robbing power?

27 posted on 06/23/2015 1:16:08 PM PDT by DiogenesLamp
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To: Red Badger

Low surface to volume helps, but makes for something somewhat outsized.


28 posted on 06/23/2015 1:16:15 PM PDT by Paladin2 (Ive given up on aphostrophys and spell chek on my current device...)
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To: Paladin2

It’s only 29 feet long and 15 feet tall......................


29 posted on 06/23/2015 1:18:06 PM PDT by Red Badger (Man builds a ship in a bottle. God builds a universe in the palm of His hand.............)
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To: TexasGator

Is it 4 cycle, ie: suck,squeeze, bang, and blow or something different?


30 posted on 06/23/2015 1:19:26 PM PDT by Don Corleone ("Oil the gun..eat the cannoli. Take it to the Mattress.")
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To: cicero2k
Aviation could use an engine like this. I see them as an early adopter, plus the simplicity may mean more time between overhauls.

They put the Dyna-cam engine in an aircraft over thirty years ago.

Hadn't heard much about it since.

31 posted on 06/23/2015 1:19:40 PM PDT by DiogenesLamp
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To: Yo-Yo; Red Badger

Of interest:

http://articles.sae.org/13429/


32 posted on 06/23/2015 1:21:37 PM PDT by jjotto ("Ya could look it up!")
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To: Red Badger

Another unique design that’s been around for a while:

http://www.bourke-engine.com/history/index.htm


33 posted on 06/23/2015 1:21:43 PM PDT by Disambiguator
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To: DungeonMaster

Interesting stuff. Reminds me of the excitement generated by the Wankel back in the day, before the first Arab Oil Crisis.

Then, one of the Wankel’s biggest shortcomings turned out to be its relatively-poor MPG.

And, since this article doesn’t tout the Duke Axial Engine’s fuel efficiency, I’m guessing it’ll go nowhere in today’s (Nanny State skewed) marketplace... unless those promised “future developments” bear substantial fruit.


34 posted on 06/23/2015 1:23:51 PM PDT by newgeezer (It is [the people's] right and duty to be at all times armed. --Thomas Jefferson, 1824)
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To: Don Corleone

“Is it 4 cycle, ie: suck,squeeze, bang, and blow or something different?”

Per the company, it is a four-stroke engine.


35 posted on 06/23/2015 1:25:16 PM PDT by TexasGator
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To: Red Badger

It is basically an axial piston hydraulic pump / motor with spark plugs and a fuel injection system.


36 posted on 06/23/2015 1:27:07 PM PDT by Sequoyah101
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To: Sequoyah101

and a variable compression ratio design..................


37 posted on 06/23/2015 1:28:44 PM PDT by Red Badger (Man builds a ship in a bottle. God builds a universe in the palm of His hand.............)
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To: ProtectOurFreedom

Some where I have a swash plate compressed air motor I built. Converted it to steam and got about 4 amps at 12 volts out of it.


38 posted on 06/23/2015 1:29:33 PM PDT by mad_as_he$$
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To: Disambiguator

One of my personal favorites is the Knight sleeve-valve motor:

http://blip.tv/thejunkman/willys-knight-70b-sleeve-valve-engine-6279749


39 posted on 06/23/2015 1:29:51 PM PDT by tacticalogic ("Oh, bother!" said Pooh, as he chambered his last round.)
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To: Red Badger

This is a swashplate engine, which has been done before. People have tried most of this technology. Not saying this isn’t the Holy Grail, just saying I ain’t holding my breath.

“The estimate is that it’s probably a process of a couple years to get it to production ready,”

Multiply by five, at least.


40 posted on 06/23/2015 1:33:10 PM PDT by DaxtonBrown (http://www.futurnamics.com/reid.php)
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