I am curious to know exactly what happens when an injector "pops" until ignition.

I have looked for diagrams, etc but I can't get what I am looking for.

My understanding is that a fine mist leaves the injector and enters the "prechamber."

What is the purpose of the prechamber?

It's my understanding that the prechamber only has a few holes through which the diesel enters into the cylinder.

How does that allow the diesel to stay "atomized?"

How much improvement can a new injector/nozzle give you?

I ask this because I will be installing my new Monark injectors tomorrow.

It's all a bit fuzzy to me now exactly how this works(not the installation, the actual functioning of the parts).

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1993 W124 300D
-297K on the clock as I type this.