Electronic Fuel Injection Equipment for Controlled Combustion in Diesel Engines

The development of a versatile diesel fuel injection system for direct injection engines is described, which offers the advantages of full electronic control of injection timing, fuel metering, and injection pressure.

Electronic control is inherent and the system is so versatile that fuel quantity and timing may be varied throughout the available range in successive injections.

Both piezoelectric and solenoid controlled versions are described, but all present development work is concentrated on the latter.

Two sizes of injectors have been developed with maximum delivery capabilities of 130 mm³/injection and 500 mm³/injection, and both single and multi-cylinder engines have been run.