Patent ID: 9506429
Filing Date: 2016-11-29
CPC Classification: F02D,F02M

Claim Text:
1. A fuel system for supplying a fuel to a combustion chamber of an internal combustion engine, the system comprising: a fuel injector including an injector body having a longitudinal axis, a nozzle housing secured to the injector body and including at least one injector orifice in communication with the combustion chamber, a fuel injector cavity, a nozzle valve element extending longitudinally along the fuel injector, an actuator adapted to receive an injection signal and to cause movement of the nozzle valve element in response to the injection signal to permit fuel flow from the injector cavity through the at least one injector orifice to the combustion chamber to form an injection event, and an ultrasonic exciter system positioned in the fuel injector cavity and adapted to receive an ultrasonic actuation signal and to generate ultrasonic vibrations in the fuel injector cavity in response to the ultrasonic actuation signal, and movement of the nozzle valve element is independent of the ultrasonic actuation signal; and a controller adapted to generate and transmit the injection signal to initiate the injection event at a first time, and to generate the ultrasonic actuation signal to initiate the ultrasonic exciter system to ultrasonically vibrate the fuel at a second time during the injection event and later than the first time.