Lightning-Fast Fuel Delivery Piezoelectric Injectors' Speed and Precision

The ECU then controls various output actuators like fuel injectors. ... • 5 times faster than conventional injectors. 7. Emission Control ... Fuel injection is the introduction of fuel in an internal combustion engine, most commonly automotive engines, by the means of a fuel injector. omitting the efficient piezoelectric actuator. At present ... Experimental simula- tion of common rail electromagnetic injectors wearing. One type of fuel injector that offers precise metering of fuel is the piezoelectric fuel injector. Piezoelectric fuel injectors employ piezoelectric actuators ... The high precision of individual actuators makes them the most sus- ceptible to damage components of common rail systems in difficult operating ... Frequencies in the kilohertz range are desirable and piezo actuators provide faster response than electromagnetic drives, such as solenoids or voice coils. The ... This chapter is dedicated to modeling, system identification, and control of electromagnetic actuators with the main focus on the actuators used in magnetic ... A second actuator type, using piezoelectric material to provide displacement, can provide faster response than a solenoid actuator. However, a piezoelectric ... ABSTRACT: Piezoelectric actuators are increasingly used in fuel injectors due to their quick ... electric actuators than with conventional ... I think they are getting better. We used them maybe 4 years ago. So the new technology may be better.