Diesel outboard motors

the people that used diesel plane engines in WWII failed as well
maybe because they were metric?

 

For those interested in the EE20 Subaru diesel try these US importers:


Mark Heuett / Pacific Powertrain 509-243-7878

also

www.boxeer.com


The engine is 136kg excluding :

Exhaust (manifold, turbo, DPF)
A/C compressor
Alternator
Flywheel.


Dino

 

For the one interrested, a outboard turbo diesel.

 

The company for that seems to have gone away. I wonder why.

Mazda is producing an interesting lightweight, low compression diesel. Might have some applicability to outboards.

 

Yes you right. the website seams down. Probably to small operation. It was in Alaska I think.
A Mazda engine, that will be a good engine for an outboard.
An English company, I don't recall the name, are also developing a light way diesel engine for outboard.

 

see post 58 of this thread

http://www.maritimejournal.com/news101/power-and-propulsion/new-diesel-engine-concept-powers-up

Dino

 

Cox Powertrain
looks like 3 bankers looking for funding to get Ricardo to invent it and fill a gap in the market?

 

It's already been invented before WWII and rehashed again and again as an engine for bombers, delivery vans, submarines, tanks and ships among others. The most prolific being the Junkers Jumo 205.

http://en.wikipedia.org/wiki/Junkers_Jumo_205#Specifications_.28Jumo_205_A.29

I wonder what Cox is patenting.

Dino

 

there are 2 systems, the old ones are opposed piston
the Cox is pistons are connected with a scotch yoke in the middle which makes it very compact, in other words opposed had no cylinder head and a scotch yoke version has 2 head per cylinder

 

Yes, the scotch yoke is significantly different, it's been around from steam days and would allow different dwell times of piston stroke that could absorb power from expanding gases after ignition more efficiently. Programming injection events possible with common rail technology
in conjunction with longer dwell after TDC possible with scotch yolk linkage is an innovative approach.

Dino

 

Its always interesting with new technology in one area can make an older tech work better than it ever did.
I'm still waiting for a common rail conversion for a detroit with computer controlled exhaust valves.
Most people dont realise that the EMD's ( detroits big brother) in trains are becoming electronic to get them up to current EPA specs
long live the 2 stroke!!

 

Some engine technology is important for things like emissions, noise and operation at widely varying outputs. Where these things aren't critical, I'd avoid the complexity.

 

true except there is just about no place like that anymore.
The last remnant ( besides the military) seems to be medium speed engines as I guess they all ganged up and told the EPA's of the world we cant comply?
All high speed and slow speed are electronic now less very small engines.

 

The 200hp MarineDiesel outboard will be there soon! (2014)
2.0l turbo diesel GM base engine, belt drive to lower case.
240kg total.....

 

Hi Bruno,
any literature available on this 200HP outboard available yet?