It's official: Inline-6 version of the GEVO engine

I have to ask... "Hybrid Tugboats"???? Please tell how they intend to charge the batteries in a tugboat... I really don't ever recall a tugboat using dynamic propellers

jgallaway81 wrote:I have to ask... "Hybrid Tugboats"???? Please tell how they intend to charge the batteries in a tugboat... I really don't ever recall a tugboat using dynamic propellers

Railpower industries was supposedly also working on a "Green goat" tug. My understanding is that in typical tugboat operations (like ship escort) power is appled in bursts to the props (or nowadays, Z-drives and the like) as needed. the propellors spend a lot of time freespinning. I guess the idea is that if an electric drive is used it would be possible to extract "regenerative" energy from the system...

Allen, go to the below link from the same site and download the GE brochure. It has a better drawing complete with dimensions. As you will see, a large part of the extra length is from the turbo being on the output end of the engine as well as the object on the turbo intake which is probably a filter. Normally, some of that extra length would be over the pumps on the front which would shorten the overall size.

GE Marine Brochures

As for the tugboat, the idea is to charge the batteries with the diesel engine and run the props with electric motors powered by the batteries and or generator. Since a tugboat spends much of it's time at idle in port, that wasted energy would be captured in the batteries for later use.

Thanks, GEVO! (With a blown-up copy of the drawings and a ruler, Jgallaway may be able to estimate the dimensions of the rail version precisely enough to be able to tell whether... it's worth while inquiring further!)

Allen, I'm not even gonna bother.... the engine is too long, too tall and too wide... I have a very small compartment to fill.

Thanks for the thought though... I guess I just keep looking.

Can you describe your project in some level of detail? It sounds like you want to re-motor something...

jgallaway81 wrote:Allen, I'm not even gonna bother.... the engine is too long, too tall and too wide... I have a very small compartment to fill.

Thanks for the thought though... I guess I just keep looking.

How does this compare to a ALCO 6-251 ?

All I'll say is that the engine needs to fit within a compartment of this size:

11' 8" Long - 4' 4" wide - 5' 10" high

Some very basic preliminary information has come forth about a new locomotive from GE which, as Allen Hazen predicted, will be called the ES23B. To learn more, visit the new ES23B thread: http://www.railroad.net/forums/viewtopi ... =8&t=58122

jgallaway81 wrote:I have to ask... "Hybrid Tugboats"???? Please tell how they intend to charge the batteries in a tugboat... I really don't ever recall a tugboat using dynamic propellers

The Foss tug has the ability to charge the batteries through the shore power connection, doubtless at the expense of the grateful California taxpayers. Certainly save on fuel expense and reduce pollution or move off site anyway.

GE already makes all the components for diesel electric drives as used in the newest Washington State Ferries (EMD diesels though). Diesel electric drive is also used in OSV's (Offshore Supply Vessels) where they spend a lot of time maneuvering at low speed where using a low horsepower engine could save a lot of fuel running thrusters as well as both props. So there as a market out there that GE has something to sell in.