Piezoelectric Injectors Outpacing Electromagnetic Actuators with Blazing Speed

Another design feature of the piezoelectric injector is the absence of mechanical forces that could act on the sprayer needle, as is the case ... Piezoelectric stack actuators are particularly useful because they can generate large forces, but the displacement is almost linear depending on ... ... electrical, e.g. using ... injectors which rely on piezoelectric actuators ... faster response than a solenoid actuator, but has miniscule stroke length. ABSTRACT: Piezoelectric actuators are increasingly used in fuel injectors due to their quick ... electric actuators than with conventional ... Piezo actuators have response times on the order of just a few tenths of a millisecond. The piezo-electric technology was commercialized in common rail ... The different parts of the proposed model are then depicted (injector holder, control valve, nozzle and piezoelectric valve) and merged. Finally, a comparison ... Piezoelectric actuators can give the same performance from a smaller component, produce higher-resolution movement, and require a lower operating voltage than ... Frequencies in the kilohertz range are desirable and piezo actuators provide faster response than electromagnetic drives, such as solenoids or voice coils. The ... omitting the efficient piezoelectric actuator. At present ... Experimental simula- tion of common rail electromagnetic injectors wearing. Piezoelectric actuators are increasingly used in fuel injectors due to their quick response, high efficiency, accuracy, and excellent ...