Revolutionizing Engine Control Piezoelectric Injectors' Lightning-Fast Response

Piezoelectric actuators are often employed in such applications where they provide fast and accurate control over a long service life: The angle of a mirror or ... The high precision of individual actuators makes them the most sus- ceptible to damage components of common rail systems in difficult operating ... Piezoelectric motors also eliminate servo dither and the accompanying heat generation, unavoidable with electromagnetic motors. Piezomotors are ... Compared to the electromagnetic nozzle, piezo nozzles consume less fuel and have higher efficiency [4]. BOSCH piezo injectors are the most common injectors. And for an electromagnetic injector, there is usually an outlet for fuel backflow from the center of the electromagnet. The photo shows a Bosch piezo injector. use in diesel fuel injectors. Sept 2009 – Milestone: Measure and compare piezoelectric and mechanical reliabilities of tape- cast and hot ... According to Bosch, which introduced piezo injectors to the industry, a piezo actuator acts up to five times faster than a standard injector solenoid and the ... ... injection nozzle is normally operated with either an electromagnetic solenoid or a piezoelectric actuator. ... than that offered by electromagnetic ... I am going to need to determine the PWM on the injectors and then cross reference them to how low impedance injectors operate. So if a Piezo ... vantages with respect to electromagnetic types. In particular, they provide for extremely fast response (e.g. less than. 100µs) and permit proportional ...