Recent Topics
what tire to run for winter 4wd Tahoe ?
by Arctic388
10/31/14 10:29 AM
New powder coated steel wheels: should I worry?
by ymc226
10/31/14 10:12 AM
Stainless Steel, Reusable Oil Filter Information
by BrotherMichigan
10/31/14 10:02 AM
Power companies are evil, plain & simple.
by Thermo1223
10/31/14 09:53 AM
Anyone run Nokianís year round?
by Picky1
10/31/14 09:21 AM
I made the switch to pennzoil...
by SuzukiGoat
10/31/14 08:47 AM
Light Bulb Cartel
by Vikas
10/31/14 08:10 AM
Proud of My Dad
by Phishin
10/31/14 07:06 AM
google earth does not show Panoramio photos
by Trav
10/31/14 07:06 AM
Philips 9012 in '05 Corolla?
by lukejo
10/31/14 06:16 AM
new GM 4.3L V-6
by used_0il
10/31/14 03:02 AM
2015 Accord Hybrid
by Ewag2983
10/31/14 02:24 AM
Newest Members
Thourun, Zach72, SandCastle, ymc226, redwoods73
51758 Registered Users
Who's Online
79 registered (901Memphis, 94astro, 13Tacoma, 943kgt, 00Max00, 10 invisible), 1595 Guests and 151 Spiders online.
Key: Admin, Global Mod, Mod
Forum Stats
51758 Members
64 Forums
221455 Topics
3502083 Posts

Max Online: 2862 @ 07/07/14 03:10 PM
Donate to BITOG

Page 1 of 2 1 2 >
Topic Options
#3425794 - 07/15/14 06:33 PM Duke engine......better design?
mcrn Offline


Registered: 11/30/05
Posts: 2561
Loc: FL
http://sploid.gizmodo.com/this-is-the-we...dium=socialflow

I searched and could not see that this had been previously posted.

Top
#3425852 - 07/15/14 07:22 PM Re: Duke engine......better design? [Re: mcrn]
sicko Offline


Registered: 09/22/08
Posts: 936
Loc: Virginia
That first image is seriously cool to look at.


Top
#3425867 - 07/15/14 07:36 PM Re: Duke engine......better design? [Re: mcrn]
webfors Offline


Registered: 06/06/06
Posts: 3668
Loc: Ottawa
Awesome! I would love to see this engine in production.
_________________________
08 Forester 5mt, AFE 0w30, XG7317
13 Dodge GC, VWB 5w20, Mopar OF
13 Suzuki SFV650, OEM 10w40, OEM OF
All small engines; RT5 10w30

Top
#3425910 - 07/15/14 08:14 PM Re: Duke engine......better design? [Re: mcrn]
gregk24 Offline


Registered: 04/13/13
Posts: 2935
Loc: FL, USA
Wow, looks pretty cool. Not sure how reliable things would be though. Looks like it could have sealing issues.
_________________________
2006 Honda Accord LX 2.4 i-vtec 125K
Mobil 1 AFE 0w20
Fram Ultra 7317

2005 Chevy Uplander 3.5 117K
Mobil 1 HM 5w30
Fram Ultra 3387

Top
#3425914 - 07/15/14 08:18 PM Re: Duke engine......better design? [Re: mcrn]
Quest Offline


Registered: 12/19/04
Posts: 6427
Loc: beaver land EH?
mechanical complexity, coupled with sealing problems (just like wenkel engines), will plague this design in production mode.

Q.
_________________________
"Internet discussion boards act as echo chambers for conspiracy dittoheads" A.Allen

Top
#3425916 - 07/15/14 08:24 PM Re: Duke engine......better design? [Re: gregk24]
Nick1994 Online   content


Registered: 02/19/13
Posts: 1287
Loc: Phoenix, AZ
Originally Posted By: gregk24
Wow, looks pretty cool. Not sure how reliable things would be though. Looks like it could have sealing issues.


That's what I thought. After many years of use, things are gonna start losing their pressure, metal will fatigue and the whole engine will need replaced. Interesting concept though.
_________________________
2004 VW Beetle TDI 162k
(Yeah it's a chick car but it gets me 40 mpg)

Top
#3425949 - 07/15/14 08:46 PM Re: Duke engine......better design? [Re: mcrn]
Win Offline


Registered: 02/05/03
Posts: 3368
Loc: Arkansas
Looks like a wobble plate type of air conditioning compressor.

With spark plugs.
_________________________
09 Torrent 3.6 V6 Fram 5/30
09 Solstice 2.4 I4 Fram 5/30
08 G8 3.6 V6 M1 0/40
04 Xj8 4.2 V8 Fram 5/30
99 S-10 2.2 I4
94 Xj12 6.0 V12

Top
#3425950 - 07/15/14 08:47 PM Re: Duke engine......better design? [Re: mcrn]
Chris142 Offline


Registered: 06/05/03
Posts: 11489
Loc: apple valley, ca
very similar to many a\c compressors
_________________________
02 Wrangler super-s 1030
87 F250 Diesel proline 1540
04 Tahoe super-s 530
Z400 maxima 2050
KLR250 Maxima 1040
Polaris Trailblazer delo 5w40

Top
#3425952 - 07/15/14 08:50 PM Re: Duke engine......better design? [Re: mcrn]
Subdued Offline


Registered: 10/06/13
Posts: 294
Loc: Youngstown, NY
that's a technological terror if I've ever seen one

Top
#3425979 - 07/15/14 09:11 PM Re: Duke engine......better design? [Re: Chris142]
scurvy Offline


Registered: 02/19/07
Posts: 2275
Loc: Chicago IL USA
Originally Posted By: Win
Looks like a wobble plate type of air conditioning compressor.

Originally Posted By: Chris142
very similar to many a\c compressors


Quite right. Same design as many existing AC compressors, which work beautifully. No reason it couldn't be adapted to work with spark or compression ignition.
_________________________
You are entitled to your own opinion but not your own facts.

06 VW Golf TDI - M1/Delvac 1300 7.5w40ish, HU726/2x, EaBP90
12 Mazda 5 - M1 0W20, FL910S

Top
#3426249 - 07/16/14 07:38 AM Re: Duke engine......better design? [Re: Win]
Trav Offline


Registered: 11/20/06
Posts: 10047
Loc: MA, Mittelfranken.de
Originally Posted By: Win
Looks like a wobble plate type of air conditioning compressor.

With spark plugs.

Just did a Sanden and it looked just like this 7cyl.
_________________________
ASE L1, Master. Deutsch Meisterbrief.

Top
#3426363 - 07/16/14 10:32 AM Re: Duke engine......better design? [Re: mcrn]
morris Offline


Registered: 08/24/08
Posts: 3681
Loc: ks, wichita
just count the weight of the moving parts. that will tell you all you need to know.

Top
#3427006 - 07/16/14 09:39 PM Re: Duke engine......better design? [Re: mcrn]
Ram01 Offline


Registered: 10/13/10
Posts: 620
Loc: New York Queens
Wonder what weight oil that motor takes

Top
#3427035 - 07/16/14 10:24 PM Re: Duke engine......better design? [Re: mcrn]
Kiwi_ME Offline


Registered: 10/24/08
Posts: 691
Loc: New Zealand
I should be patriotic but I think it's a nightmare too. Oddly the animated GIF shows the block stationary while the video shows it rotating, as it needs to, to move pistons past the ports and spark plugs. Perhaps the crank turns at twice head speed for a 4-stroke cycle.
Sealing the head under combustion pressure along with the complex machining of the wobble plate and con rods make it unattractive to me. And the touted advantages of balance and part count answer questions nobody has actually asked.

Compressors use this type of idea (wobble plate with a large number of small cylinders) to avoid pressure pulses in the input/output, hardly an issue in an IC engine where small cylinders have the disadvantage of high heat loss.

Top
#3427134 - 07/17/14 04:09 AM Re: Duke engine......better design? [Re: mcrn]
bruno Offline


Registered: 10/08/07
Posts: 387
Loc: new Jersey
Back in the '50s this was tried .... it was called a Swash Plate design . Fine for clean conditions like AC compressors but otherwise it was a dud .

Just because it can be done doesn't mean it's worth doing .


Edited by bruno (07/17/14 04:11 AM)

Top
#3429787 - 07/20/14 12:42 AM Re: Duke engine......better design? [Re: bruno]
Quest Offline


Registered: 12/19/04
Posts: 6427
Loc: beaver land EH?
Originally Posted By: bruno
Back in the '50s this was tried .... it was called a Swash Plate design . Fine for clean conditions like AC compressors but otherwise it was a dud .

Just because it can be done doesn't mean it's worth doing .


+1 with what Bruno said.

Remember: unlike sealed A/C compressor, which runs in a sealed, uncontaminated environment lubricated with compressor oil, etc. (which remains uncontaminated/not deteriorated) for a long, long time; exposing to fuel and air, and dirt in air (abrasion), combustion byproducts, blowby, moisture/condensation, etc. there will be no guarantee on how long/reliable such design would be, and also the inherent energy conversion efficiency also.

Just because it looks good in theory doesn't mean it would be meaningful/practical in real-life situation.

Afterall: we have been constantly refining/improving the venerable internal reciprocating combustion engine design for a century now, it would be challenging to start from scratch to design something even better...

I know it's not 100% impossible, but it would be challenging.

Q.
_________________________
"Internet discussion boards act as echo chambers for conspiracy dittoheads" A.Allen

Top
#3430544 - 07/20/14 07:38 PM Re: Duke engine......better design? [Re: mcrn]
Shannow Offline


Registered: 12/12/02
Posts: 26878
Loc: a prison island

Top
#3433464 - 07/23/14 02:30 PM Re: Duke engine......better design? [Re: mcrn]
A_Harman Online   content


Registered: 10/01/10
Posts: 4323
Loc: Michigan
Google search barrel engines and read up on their long, unsuccessful history.
_________________________
1985 Z51 Corvette track car
2002 Camaro Z28 LS1/6-speed
2001 Dodge Ram 2500 diesel
1972 GMC 1500 shortbed project truck

Top
Page 1 of 2 1 2 >