A new distributor type fuel injection pump for diesel engines up to 40 BHP/cylinder has been developed providing performance flexibility to achieve minimum gaseous emissions, and fuelling accuracy over a wide range of fuel temperatures and viscosities. The new metering system in the pump can consistently reproduce a desired maximum fuelling curve and is shown to be insensitive to injection nozzle variations. Excess fuel for starting and external maximum fuel adjustment are also provided.
The paper describes the design and special features of the pump, and gives results of tests on rigs, engines and vehicles to demonstrate its performance.
