Diesel Pump and Diesel Engines
Diesel pump or as it is frequently known an injection pump usually is used to fuel a diesel engine, injection pumps can be used to supply fuel to a petrol motor also.
A diesel pump, in the early engines, would have been powered by the engine using a connection directly to the engines crankshaft. The diesel pump will be timed to inject the diesel into the engine at the exact time throughout the pistons stroke.

