Diesel Injectors.... How do they work?

[Thor Johnson]

Not quite EFI, but while looking for Injectors, I met a good friend at 
NOPI, and he showed me alot of injectors... I noticed that the Diesel ones
had Fuel in, and two little ports on the sides.  How do these injectors 
know when to fire?

                Thor Johnson
       johnsont at falcon.mercer.peachnet.edu
   http://falcon.mercer.peachnet.edu/~johnsont
                                                    
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