Engine is at rest

Engine is at full load

Engine is at full speed

Engine is at idling speed

Control rack

Delivery valve

Barrel

Plunger

To minimize the slushing of fuel in the tank

To strengthen the fuel tank

To make chambers in the fuel tank

To make square and lengthy fuel tank

Hard running of the engine

erratic running of the engine

Smooth running of the engine

Continuous running of the engine

Idling action

Partial action

Normal action

pumping action