Supercharger anyone?

[Kapt. Q]

Supercharged Smart Diesel marine engine:

http://www.dmv-bootsdiesel.de/Englisher%20Index/english_index.html

Cheers!

Ps. I still can't post in Smart related topics

Cheers!

[problemchild1976]

am i missing the supercharger bit?

JJ

[problemchild1976]

ok - seen it on the spec sheets, supercharged but still only 40bhp?

JJ

[Kapt. Q]

It's a diesel and the application calls for torque and sustained constant load (rarely at wide open throttle), hence it delivers 100Nm between 1700 and 2800rpm. Really quite impressive and far more suitable in many smaller boats than a turboed engine.

Cheers!

[Thrumbleux]

Are you sure it hasn't suffered in the translation and it's a turbo?
Supercharging (mechanically) a Diesel with its requirement for excess air is guaranteed to wreck the fuel efficiency for no gain when a turbocharger does the the job for free.

[Kapt. Q]

It is possible that the translation is incorrect, it is hard to see because the pictures are so poor.

Cheers!

[Thrumbleux]

Turbo-supercharger with the turbo word omitted. I'll bet my genitalia on it. Diesels are always turboed. The air they require (unthrottled and with excess air) demands it. The only reason I can think it could have a mecahnical supercharger is too eliminate the heat source in the engine bay that a turbo is. Marine bods go to great lengths to watercool exhausts even. They'll pay for it in fuel if they have.