The Speed Edge Piezoelectric Injectors Triumph over Electromagnetic Actuators

The correct answer is A, piezo, which allows for precise fuel metering leading to better fuel economy and reduced emissions. Piezo injectors ... But solenoid injectors tend to vibrate more than piezo units, creating more noise. In a piezo injector, the electronic engine management system ... vantages with respect to electromagnetic types. In particular, they provide for extremely fast response (e.g. less than. 100µs) and permit proportional ... use in diesel fuel injectors. Sept 2009 – Milestone: Measure and compare piezoelectric and mechanical reliabilities of tape- cast and hot ... The major advantage of piezoelectric injectors is their speed of operation and the repeatability of the movement of the valve. The dilation and retraction ... Moreover, because of the higher velocity, the piezo injector could cause a better fuel penetration in the combustion chamber and, hence, a better fuel-air ... Piezo actuators (not to be confused with piezo motors) provide motion output proportional to a drive voltage – usually up to one millimeter and high dynamics ... 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 ... Piezoelectric transducers have replaced the electromagnetic actuator ... lower than those found in a diesel engine, the piezoelectric actuators act directly on ... As a Piezo injector performs faster, it can carry out more injections per cylinder stroke and allows for higher fuel system pressures. This ...