Diesel Boxer

[pcn]

Has anyone encountered a diesel engine (marine or otherwise) in a "boxer" configuration - or is there some showstopper unique to diesel combustion that disqualifies this option?

[moTthediesel]

Well, there are the Fairbanks-Morse horizontal opposed piston engines.
They could truely be called "boxers" as their pistons could be seen as punching at each other
For something really wild, check out the Napier Deltic engine, with three banks of opposed piston cylinders arranged in a delta shape, with three crankshafts geared together to the transmission.
There'll always be an England
moT

[antonfourie]

The English do like their strange engines, like the rotary engine from WWI where the crankshaft was attached to the aircraft, and the prop was attached to the cylinders which spun around the crankshaft.

[moTthediesel]

It wasn't only the English that used rotary aircraft engines in WW1, the French Gnome et Rhone engine was used in many of their aircraft as well.
There was no way to throttle those engines, so they ran "wide open" all the time. They were controled by switching the ignitions off and on, that accounts for the strange "burst of revs" sound you hear as they land.
moT

[StianM]

I belive the Danish Callesen or something like that made diesel boxers for ferrys. This was done to get them fitted under the low deck's
Maybe it was a other? I'm shure it was danish

[StianM]

Originally Posted by moTthediesel

For something really wild, check out the Napier Deltic engine, with three banks of opposed piston cylinders arranged in a delta shape, with three crankshafts geared together to the transmission.
There'll always be an England
moT

The engine to the right is a Napier Nomad. It's the same construction, but the Nomad is a compound engine, It's developed during the 50's, but stil hold the record as the moust fuel efficiant aircraft engine ever buildt. There was fuel injection to the compund so that power could be increased during take off

[moTthediesel]

Dats watt I'm talkin' bowt

Thanks for posting that animation, v. cool

moT

[StianM]

You have ti be sick to make a engine like this and mentaly ill not to like it.
I'm still wondering if it was callesen or not the produced those ferry boat boxers.

[waqas20]

Yes there is a diesel (jet a fuel) called diesel air but I think they could be used in the marine world. Diesel air did try

[FAST FRED]

"There was fuel injection to the compund so that power could be increased during take off"

Are you sure ?
Usually the old recips were water or water alcohol injected to allow higher (5 min limit) take off power.

Our 3350 3 row recips would pull 54 inches of manifold pressure at 2900 with the water on.
Only 48 inches MAP without the water
Pair was mounted on Neptune P2V7,s.

FAST FRED

[StianM]

Water and alcohol was injected to the air intake for combustion.

Here the fuel is injected betwen the engine and the compund turbine and is burned in the extra okygen you find in a diesel engine.