The Deltic innards

[aussiesteve]

G'day,
I am hoping that somebody has been inside the engineroom of a Deltic.
Watching some vintage video featuring such, I noticed a pair of drive shafts up near the ceiling above the donks.
One drive shaft above the other.
Each was spinning in the opposite direction.
I can only presume something to do with the turbo of each exhaust stack.
DID the Deltic possess turbos ?
DID the Deltic have a single governor to control each donk ?
I cannot envisage such drive shafts being utilized for other purposes like radiator fan rotation.
Steve.

[JEB-245584/2]

I've been inside one Steve, I was helping out on a two man job. I've been in a few railway nooks and crannies in my time but a Deltic innards with one engine idling is one of the worst. No matter how nice they sound lineside I can tell you it's not the same when you are in intimate distance of the thing. The only relief is that it was on one engine and not two.
I'll make a couple of calls and let you know about the shaft you asked about.

Cheers John

[pre65]

Originally Posted by aussiesteve

G'day,
I
I can only presume something to do with the turbo of each exhaust stack.
DID the Deltic possess turbos ?

Steve.

They had superchargers.

This is a good place to start if you want more info on Napier Deltic engines.

https://en.wikipedia.org/wiki/Napier_Deltic

[JEB-245584/2]

Have a look at this picture Steve , hope it helps.
IMG_20201123_131944.jpg

Cheers John

[aussiesteve]

G'day John and Philip,
Thanks for the Deltic info.
Yes, I can now see that the drive shafts are actually to do with radiator fans rotation.
Via the usual clutch, Eddy Current clutch as we calls such here, though that was the patent name specific to Alco.
We also refer to the Supercharger as a Turbo.
EMD and other two stroke donk manufacturers tended to refer to the dingus as a supercharger.
Oh, and John you ain't been inside the engineroom of an MKA rebuilt CLP class AT26HC-2M.
Not only the racket from the EMD 645E3C, but also the HEP generator.
Hideous things, thankfully were acquired by our opposition after privatization.
Only had to work one twice when called out to fire on the Silver Streak in the late 1990s.
They were very unreliable, compared to the original Clyde built CL class prior to being bashed by MKA.
And, the loco handbrake was inside the engineroom.
So, had to trudge in there to crank on the handbrake after stabling the train at Central station.
Crew were required to wear ear protection when being inside the mongrel things.
Steve.