Fuel injector testing device

A device for testing fuel injectors, comprising:

• a plurality of fuel injectors;
• a plurality of graduated cylinders, configured to measure an amount of fuel dispensed by the plurality of fuel injectors, each of the plurality of graduated cylinders corresponding to one of the plurality of fuel injectors;
• wherein the plurality of fuel injectors is configured and oriented to discharge fluid into the plurality of graduated cylinders;
• a plurality of valves, configured to regulate a first flow through the plurality of graduated cylinders, each of the plurality of valves corresponding to and connected to one of the plurality of graduated cylinders;
• a fuel reservoir, connected to the plurality of valves;
• a first flow sensor, configured to measure a minimum fuel delivery rate of the plurality of fuel injectors and connected to the fuel reservoir;
• a second flow sensor, configured to measure a maximum fuel delivery rate of the plurality of fuel injector and connected to the first flow sensor;
• a check valve, connected in parallel to the first flow sensor;
• wherein, the second flow sensor is also connected to the plurality of fuel injectors;
• a return fluid line from the plurality of fuel injectors to the reservoir, including a pressure regulator and a third flow meter.

A method for testing a plurality of fuel injectors using a testing device, comprising:

• setting a pressure within the testing device using a pressure regulator of the testing device;
• selecting an option between a manual test mode and an automatic test mode;
• in response to the option being the manual test mode:
• energizing a plurality of fuel injectors mounted onto the testing device;
• wherein, the plurality of fuel injectors is configured to dispense fuel into a plurality of graduated cylinders;
• obtaining a first measurement from the plurality of graduated cylinders;
• in response to the option being the automatic testing mode;
• energizing the plurality of fuel injectors;
• marking a first time for energizing the plurality of fuel injectors;
• marking a second time for a flow meter of the testing device detecting a flow from the fuel injectors;
• calculating a latency time as a difference between the second time and the first time.