Diesel engines Can Run Underwater ?

  • 4 Replies
  • 7026 Views

0 Members and 1 Guest are viewing this topic.

*

Offline neilep

  • Withdrawnmist
  • Naked Science Forum GOD!
  • *******
  • 20602
    • View Profile
Diesel engines Can Run Underwater ?
« on: 21/10/2007 19:40:36 »
Dear Engineers,

See this engine that I lifted up from my kids scalextric ?

[attachment=1333]


I found out that diesel engines can work when submerged in water ?

Why's that then?...and could we make petrol engines work submerged underwater too ?


Thank ewe

hugs

neil
xxx


Men are the same as women, just inside out !

*

Offline DoctorBeaver

  • Naked Science Forum GOD!
  • *******
  • 12656
  • A stitch in time would have confused Einstein.
    • View Profile
Diesel engines Can Run Underwater ?
« Reply #1 on: 21/10/2007 20:18:33 »
There is no reason why a petrol engine shouldn't work underwater if it has the electrics well insulated, is fuel injected, has an air intake & exhaust above water. Apart from the electrics and the fact that diesels are injected anyway, the same considerations apply.

I had a petrol Landrover that was converted to be able to drive through rivers. The air intake & exhaust stuck up at the rear corners of the bonnet (hood) and the electrics were well sealed.
« Last Edit: 21/10/2007 20:20:06 by DoctorBeaver »
Fledgling science site at http://www.sciencefile.org/SF/content/view/54/98/ needs members and original articles. If you can help, please join.

*

another_someone

  • Guest
Diesel engines Can Run Underwater ?
« Reply #2 on: 21/10/2007 20:24:06 »
There is no reason why a petrol engine shouldn't work underwater if it has the electrics well insulated, is fuel injected, has an air intake & exhaust above water. Apart from the electrics and the fact that diesels are injected anyway, the same considerations apply.

I had a petrol Landrover that was converted to be able to drive through rivers. The air intake & exhaust stuck up at the rear corners of the bonnet (hood) and the electrics were well sealed.

You would also need to modify the cooling system (not least the cooling fan) to manage the thermal characteristics and fluid dynamics of water rather than air.

*

Offline DoctorBeaver

  • Naked Science Forum GOD!
  • *******
  • 12656
  • A stitch in time would have confused Einstein.
    • View Profile
Diesel engines Can Run Underwater ?
« Reply #3 on: 21/10/2007 20:31:06 »
I don't think the fan on mine was altered. But, then again, it wasn't designed for long-term submersion.
Fledgling science site at http://www.sciencefile.org/SF/content/view/54/98/ needs members and original articles. If you can help, please join.

*

Offline ukmicky

  • Neilep Level Member
  • ******
  • 3011
    • View Profile
    • http://www.space-talk.com/
Diesel engines Can Run Underwater ?
« Reply #4 on: 24/10/2007 20:55:57 »
Cant see the problem most engines are water cooled these days anyway  [:D]Come to think of it a beetle engine would be perfect.
« Last Edit: 24/10/2007 20:58:44 by ukmicky »