Fuel Injection at Warp Speed Piezoelectric Injectors Outpace Electromagnetics

ABSTRACT: Piezoelectric actuators are increasingly used in fuel injectors due to their quick ... electric actuators than with conventional ... What in the world do you want to shake at MHz? The energy and power densities you describe are huge. There are piezo actuators that have mm ... An actuator giving high displacement was successfully produced by stacking piezoelectric disks. Key words: Piezoelectric Ceramics, Fuel Injector, Actuator, PZT, ... The piezoelectric element represents the latest generation of injector actuators and ensures higher performance, in particular faster response, than the ... Another design feature of the piezoelectric injector is the absence of mechanical forces that could act on the sprayer needle, as is the case ... ... faster-acting hydraulic forces. ... Technician B says that control valves that use piezoelectric control valves are the only actuators capable of ... ... injectors: The pump injector ... faster than with electromagnetic valves. This ... piezoelectric valve in the pump injector are: – The piezoelectric actuator. Compared to the electromagnetic nozzle, piezo nozzles consume less fuel and have higher efficiency [4]. BOSCH piezo injectors are the most common injectors. It is also assumed that the dynamics of the piezo actuator from the electrical side is much faster than the dynamics from the mechanical side. As a Piezo injector performs faster, it can carry out more injections per cylinder stroke and allows for higher fuel system pressures. This ...