What is the fuel delivery system like?

Clearly the fuel is injected into the cylinder just before top-dead-center, when compression temperatures are high enough to ignite it. What does the injector look like? how big is it? How much fuel does it deliver on each firing stroke? What is the specific fuel consumption of the engine as a whole -- that is, how many pounds of fuel are consumed per horsepower hour (or whatever units are used)? A rule of thumb I've gone by in the past for gasoline engines is about 1/2 pound of fuel per horsepower hour. Is that in the ballpark for these Wartsila engines?

I tried to print out that 60 page .pdf file, but it keeps choking on page 8. I'll have to work with it some more...

tanstaafl.