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Old 22-10-2012, 15:46   #1
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Article On New Diesel Technology

I thought some of you might find this article to be of interest:
LiquidPiston unveils its ultra efficient, small diesel engine — Cleantech News and Analysis
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Old 22-10-2012, 15:54   #2
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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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Old 22-10-2012, 16:02   #3
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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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Old 22-10-2012, 16:13   #4
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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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Old 22-10-2012, 16:21   #5
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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.
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Old 22-10-2012, 20:29   #6
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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.
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Old 23-10-2012, 11:47   #7
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Re: Article On New Diesel Technology

Quote:
Originally Posted by Sailmonkey View Post
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
Try Taco Night.
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Old 23-10-2012, 11:50   #8
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Re: Article On New Diesel Technology

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Originally Posted by Adelie View Post

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.
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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Old 23-10-2012, 11:51   #9
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Re: Article On New Diesel Technology

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The Wankel also has a big advantage on reciprocating engines in the areas of reliability, weight and physical size.
Until an apex seal fails in a remote anchorage right?
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Old 23-10-2012, 11:57   #10
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Re: Article On New Diesel Technology

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Try Taco Night.
I can eat all I want and never break 150 lbs.......it'll get me in the end I know.
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Old 23-10-2012, 12:11   #11
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Re: Article On New Diesel Technology

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Until an apex seal fails in a remote anchorage right?
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.
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Old 23-10-2012, 12:18   #12
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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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Old 23-10-2012, 12:30   #13
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Re: Article On New Diesel Technology

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Try Taco Night.
+1.. I had a good laugh...
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Old 23-10-2012, 12:59   #14
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Re: Article On New Diesel Technology

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The ecomotors are very close to production.
Opposed-Piston Opposed-Cylinder Engines have almost no vibration
EcoMotors
Everything old is new again.
Fairbanks Morse 10 cylinder opposed piston engines were used in Submarines and other applications.
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Old 23-10-2012, 13:24   #15
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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....
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