System and method for measuring fluid delivery from a multi-fluid injector

A method for measuring fuel delivery from a multi-fluid fuel injector, the method comprising:

• supplying a first fuel from a first fuel circuit to the fuel injector;
• supplying a second fuel from a second fuel circuit to the fuel injector;
• actuating the fuel injector to deliver a volume of the first fuel and a volume of the second fuel from an outlet port of the fuel injector;
• determining the volume of the first fuel delivered from the fuel injector by measuring fluid displacement from a first measurement reservoir in fluid communication with the fuel injector;
• and
• determining the volume of the second fuel delivered from the fuel injector.

A system for measuring fluid delivery from a multi-fluid injector, the system comprising:

• a fluid injector for injecting a first fluid and a second fluid;
• a first fluid pump for supplying the first fluid to the fluid injector;
• a first measurement reservoir having a supply chamber that decreases in volume upon actuation of the fluid injector;
• a second fluid pump for supplying the second fluid to the fluid injector;
• a second measurement reservoir having a supply chamber that decreases in volume upon actuation of the fluid injector;
• and
• a flow meter in fluid communication with an outlet port of the fluid injector.