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22-10-2012, 14:46
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#1
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Registered User
Join Date: Sep 2012
Location: Damariscotta, ME
Boat: American Tug
Posts: 129
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Article On New Diesel Technology
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22-10-2012, 14:54
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#2
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Registered User
Join Date: Dec 2008
Location: ontario canada
Boat: grampian 26
Posts: 1,743
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Re: Article On New Diesel Technology
Rotary engines may be new to diesels but were used in cars powered by gasoline. There is a reason they don't make them anymore.
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22-10-2012, 15:02
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#3
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Registered User
Join Date: Sep 2009
Location: Houston
Boat: ‘01 Catana 401
Posts: 9,626
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Re: Article On New Diesel Technology
It seems that they've fixed the faults of the wankel rotary engine......I'm interested, I'd love to get 400lbs out of my stern
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22-10-2012, 15:13
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#4
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Senior Cruiser
Join Date: Oct 2007
Location: San Antonio, TX/Bocas del Toro, Panama
Boat: 1990 Macintosh 47, "Merlin"
Posts: 2,844
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Re: Article On New Diesel Technology
I won't buy one for JUST this reason alone "...with 10 times fewer parts...". How, is that possible? 1 times fewer parts is 0 total parts. So, does it have negative parts?
This assertion that products are "X times less..." is just stupid - and impossible.
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22-10-2012, 15:21
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#5
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Registered User
Join Date: Jul 2007
Location: W Florida
Boat: Still have the 33yo Jon boat. But now a CATAMARAN. Nice little 18' Bay Cat.
Posts: 7,086
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Re: Article On New Diesel Technology
EcoMotors raises $32.5M from Khosla, Bill Gates, Braemar — Cleantech News and Analysis
This is the one I saw a few years ago and liked.
I tried to contact them so I could invest a few dollars but they didn't want to talk to me.
I guess because I can't come up with $$ like Gates.
__________________
Who knows what is next.
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22-10-2012, 19:29
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#6
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Moderator
Join Date: Feb 2010
Location: La Ciudad de la Misión Didacus de Alcalá en Alta California, Virreinato de Nueva España
Boat: Cal 20
Posts: 20,554
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Re: Article On New Diesel Technology
The reasons that the Wankel has not done well in the automotive sector are mostly related to the particular demands of the automotive sector, specifically the need to develop high power in the low RPM range, without that an engine will not perform adequately in normal stop and go traffic around town.
There have also been advances in fuel economy such that the wankel is now comparable to Gas and diesel automotive engines.
For boat use the engine generally run continuously at medium to high power putting the engine in a regime it can work well in.
The Wankel also has a big advantage on reciprocating engines in the areas of reliability, weight and physical size.
From reading about different engine cycles, it appears the liquidpiston has adopted aspects of the Adkinson cycle to increase efficiency.
Technology marches on and it appears that the wankel may come around again.
__________________
Num Me Vexo?
For all of your celestial navigation questions: https://navlist.net/
A house is but a boat so poorly built and so firmly run aground no one would think to try and refloat it.
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23-10-2012, 10:47
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#7
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Registered User
Join Date: May 2008
Location: Nova Scotia until Spring 2021
Boat: Custom 41' Steel Pilothouse Cutter
Posts: 4,976
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Re: Article On New Diesel Technology
Quote:
Originally Posted by Sailmonkey
It seems that they've fixed the faults of the wankel rotary engine......I'm interested, I'd love to get 400lbs out of my stern
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Try Taco Night.
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23-10-2012, 10:50
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#8
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Registered User
Join Date: May 2008
Location: Nova Scotia until Spring 2021
Boat: Custom 41' Steel Pilothouse Cutter
Posts: 4,976
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Re: Article On New Diesel Technology
Quote:
Originally Posted by Adelie
From reading about different engine cycles, it appears the liquidpiston has adopted aspects of the Adkinson cycle to increase efficiency.
Technology marches on and it appears that the wankel may come around again.
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Well, it would, wouldn't it?
Meanwhile, can I find a small cargo van (something between a Honda Element and a Ford Transit) with a diesel/electric hybrid power setup?
I cannot. I might as well go sailing for five years until I can buy in North America what is available in Japan and Europe.
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23-10-2012, 10:51
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#9
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Registered User
Join Date: May 2009
Posts: 1,379
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Re: Article On New Diesel Technology
Quote:
Originally Posted by Adelie
The Wankel also has a big advantage on reciprocating engines in the areas of reliability, weight and physical size.
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Until an apex seal fails in a remote anchorage right?
__________________
Let your heart tell you where to go, but let your brain tell you how to get there.
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23-10-2012, 10:57
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#10
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Registered User
Join Date: Sep 2009
Location: Houston
Boat: ‘01 Catana 401
Posts: 9,626
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Re: Article On New Diesel Technology
Quote:
Originally Posted by S/V Alchemy
Try Taco Night.
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I can eat all I want and never break 150 lbs.......it'll get me in the end I know.
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23-10-2012, 11:11
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#11
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Moderator
Join Date: Feb 2010
Location: La Ciudad de la Misión Didacus de Alcalá en Alta California, Virreinato de Nueva España
Boat: Cal 20
Posts: 20,554
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Re: Article On New Diesel Technology
Quote:
Originally Posted by Target9000
Until an apex seal fails in a remote anchorage right?
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I believe the odds of an apex seal failing are lower than throwing a valve or rod.
While the particular modes of failure are different between Wankel and reciprocating engines, the overall odds of failure are lower for the Wankel and when they do go it is less likely to be an immediate catastrophic failure which is why the light aircraft industry is investigating them heavily though they don't seem to have reached the market yet.
__________________
Num Me Vexo?
For all of your celestial navigation questions: https://navlist.net/
A house is but a boat so poorly built and so firmly run aground no one would think to try and refloat it.
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23-10-2012, 11:18
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#12
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Registered User
Join Date: Dec 2007
Boat: Mahe 36, Helia 44 Evo, MY 37
Posts: 5,731
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Re: Article On New Diesel Technology
The ecomotors are very close to production.
Opposed-Piston Opposed-Cylinder Engines have almost no vibration
EcoMotors
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23-10-2012, 11:30
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#13
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Registered User
Join Date: Mar 2011
Posts: 156
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Re: Article On New Diesel Technology
Quote:
Originally Posted by S/V Alchemy
Try Taco Night.
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+1.. I had a good laugh...
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23-10-2012, 11:59
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#14
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Registered User
Join Date: Dec 2008
Location: ontario canada
Boat: grampian 26
Posts: 1,743
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Re: Article On New Diesel Technology
Quote:
Originally Posted by Cotemar
The ecomotors are very close to production.
Opposed-Piston Opposed-Cylinder Engines have almost no vibration
EcoMotors
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Everything old is new again.
Fairbanks Morse 10 cylinder opposed piston engines were used in Submarines and other applications.
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23-10-2012, 12:24
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#15
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Registered User
Join Date: Jul 2012
Location: Somewhere in Germany
Boat: OEM, proportional
Posts: 1,437
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Re: Article On New Diesel Technology
Meh, engines...gimme a stick, a sheet of cloth, and some wind! Ok, I meant weather-type wind, not the aromatic kind....
__________________
Ps 139:9-10 If I take the wings of the morning, and dwell in the uttermost parts of the sea; Even there shall thy hand lead me, and thy right hand shall hold me.
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