Go Back   EcoModder Forum > EcoModding > General Efficiency Discussion
Register Now
 Register Now
 

Reply  Post New Thread
 
Submit Tools LinkBack Thread Tools
Old 12-20-2010, 07:08 AM   #1 (permalink)
EcoModding Lurker
 
Join Date: Dec 2010
Location: Flanders
Posts: 13
Thanks: 0
Thanked 2 Times in 1 Post
Toroidal Opposed Piston Engine

another approach

youtube : watch?v=AM335uWoYBQ

  Reply With Quote
Alt Today
Popular topics

Other popular topics in this forum...

   
Old 12-20-2010, 12:49 PM   #2 (permalink)
Master EcoModder
 
NeilBlanchard's Avatar
 
Join Date: May 2008
Location: Maynard, MA Eaarth
Posts: 7,908

Mica Blue - '05 Scion xA RS 2.0
Team Toyota
90 day: 42.48 mpg (US)

Forest - '15 Nissan Leaf S
Team Nissan
90 day: 156.46 mpg (US)

Number 7 - '15 VW e-Golf SEL
TEAM VW AUDI Group
90 day: 155.81 mpg (US)
Thanks: 3,475
Thanked 2,952 Times in 1,845 Posts
Frank, I'll link to the video for you:



Interesting; but I'm not clear (yet) on what advantages this would have? The cylinders and pistons and the levers look to be quite complicated to make.
__________________
Sincerely, Neil

http://neilblanchard.blogspot.com/
  Reply With Quote
Old 12-20-2010, 01:13 PM   #3 (permalink)
...beats walking...
 
Join Date: Jul 2009
Location: .
Posts: 6,190
Thanks: 179
Thanked 1,525 Times in 1,126 Posts
...cylinder sealing looks like it'll be a nightmare task.
  Reply With Quote
Old 12-20-2010, 01:57 PM   #4 (permalink)
EcoModding Lurker
 
Join Date: Dec 2010
Location: Flanders
Posts: 13
Thanks: 0
Thanked 2 Times in 1 Post
Quote:
Originally Posted by NeilBlanchard View Post
Frank, I'll link to the video for you:
Thanks, for the link

I thought it also until i spot a film of someone doing it , making a copy of the 4 stroke Wolff-patent : youtube watch?v=cSOzSKxtWzg

currently i have actually built a second generation , and improving it to run as HCCI as mentioned in a recent Dutch article. this movie is open source, kind of a warm-up.

still have 4 posts to do, to be able to put some links

sorry for my basic english
  Reply With Quote
Old 12-20-2010, 02:43 PM   #5 (permalink)
Master Ecomadman
 
arcosine's Avatar
 
Join Date: Nov 2010
Location: Chicago area
Posts: 1,156

sc1 - '98 saturn sc1
Team Saturn
90 day: 43.17 mpg (US)

Airplane Bike - '11 home built Carp line Tour

rans - '97 rans tailwind

tractor - '66 International Cub cadet 129

2002 Space Odyssey - '02 Honda Odyssey EX-L
90 day: 28.25 mpg (US)

red bug - '00 VW beetle TDI

big tractor - '66 ford 3400

red vw - '00 VW new beetle TDI
90 day: 58.42 mpg (US)

RV - '88 Winnebago LeSharo
90 day: 16.67 mpg (US)
Thanks: 20
Thanked 337 Times in 227 Posts
Piston pins don't have much friction.

TARDEC Opposed Piston Opposed Cylinder 2-Cycle Diesel Engine
  Reply With Quote
Old 12-20-2010, 03:29 PM   #6 (permalink)
(:
 
Frank Lee's Avatar
 
Join Date: Jan 2008
Location: up north
Posts: 12,762

Blue - '93 Ford Tempo
Last 3: 27.29 mpg (US)

F150 - '94 Ford F150 XLT 4x4
90 day: 18.5 mpg (US)

Sport Coupe - '92 Ford Tempo GL
Last 3: 69.62 mpg (US)

ShWing! - '82 honda gold wing Interstate
90 day: 33.65 mpg (US)

Moon Unit - '98 Mercury Sable LX Wagon
90 day: 21.24 mpg (US)
Thanks: 1,585
Thanked 3,555 Times in 2,218 Posts
I'm sure I won't have one in my car in my lifetime....

I'd like to see the corner machine shop bore that out for oversized pistons and rings...

The mass of the "rods" appears.... massive. TWO pivot points are present in addition to the rotating points on the crank so there's likely more internal friction/piston assy than in a conventional layout, plus all that "rod" mass needs to be accelerated and decelerated every cycle. If it runs at all it'll be slooooow.
__________________



Last edited by Frank Lee; 12-20-2010 at 04:22 PM..
  Reply With Quote
Old 12-20-2010, 03:46 PM   #7 (permalink)
Master EcoModder
 
NeilBlanchard's Avatar
 
Join Date: May 2008
Location: Maynard, MA Eaarth
Posts: 7,908

Mica Blue - '05 Scion xA RS 2.0
Team Toyota
90 day: 42.48 mpg (US)

Forest - '15 Nissan Leaf S
Team Nissan
90 day: 156.46 mpg (US)

Number 7 - '15 VW e-Golf SEL
TEAM VW AUDI Group
90 day: 155.81 mpg (US)
Thanks: 3,475
Thanked 2,952 Times in 1,845 Posts
Here's the second video:

__________________
Sincerely, Neil

http://neilblanchard.blogspot.com/
  Reply With Quote
Old 12-27-2010, 06:58 AM   #8 (permalink)
EcoModding Lurker
 
Join Date: Dec 2010
Location: Flanders
Posts: 13
Thanks: 0
Thanked 2 Times in 1 Post
the Russians are going hybrid - toroidal, thy put millions of dollars in it.

youtube : watch?v=4YbFr3bErhY
  Reply With Quote
Old 12-30-2010, 11:59 AM   #9 (permalink)
Junkyard Engineer
 
Jim-Bob's Avatar
 
Join Date: Dec 2010
Location: New Port Richey, Florida
Posts: 167

Super-Metro! - '92 Geo Metro Base

$250 Pizza Delivery Car - '91 Geo Metro Base
Team Metro
90 day: 43.75 mpg (US)

Fronty the wonder truck - '98 Nissan Frontier XE
Thanks: 7
Thanked 19 Times in 12 Posts
It's like a more complex version of the Commer TS3, AKA "Commer-knocker". That didn't work out too well and I suspect this won't either.
__________________
No green technology will ever make a substantive environmental impact until it is economically viable for most people to use it. This must be from a reduction in net cost of the new technology, not an increase in the cost of the old technology through taxation



(Note: the car sees 100% city driving and is EPA rated at 37 mpg city)
  Reply With Quote
Old 12-30-2010, 12:27 PM   #10 (permalink)
Master EcoModder
 
NeilBlanchard's Avatar
 
Join Date: May 2008
Location: Maynard, MA Eaarth
Posts: 7,908

Mica Blue - '05 Scion xA RS 2.0
Team Toyota
90 day: 42.48 mpg (US)

Forest - '15 Nissan Leaf S
Team Nissan
90 day: 156.46 mpg (US)

Number 7 - '15 VW e-Golf SEL
TEAM VW AUDI Group
90 day: 155.81 mpg (US)
Thanks: 3,475
Thanked 2,952 Times in 1,845 Posts
Here's Frank's link:



Boy, there are no easy answers, that's for sure. Toroidal cylnders have got to be 5X harder to make than cylindrical ones, and the same goes for toroidal pistons...

These two in this thread are still oscillating, so even though they are toroidal, they are not rotary. The Garric engine is the only toroidal engine that is also a rotary, as far as I know.

__________________
Sincerely, Neil

http://neilblanchard.blogspot.com/

Last edited by NeilBlanchard; 12-30-2010 at 12:37 PM..
  Reply With Quote
Reply  Post New Thread






Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Content Relevant URLs by vBSEO 3.5.2
All content copyright EcoModder.com