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piezoelectricity


On the verge of liquidation, Delphi intros new direct piezo diesel injector

One of the keys to helping clean up diesel emissions and improving performance in recent years has been the piezo electric fuel injectors developed by companies like Bosch, Continental and Delphi. Previous injector designs used electro-magnetic solenoids to move the injector needle and feed fuel to the combustion chambers. In piezo injectors, a stack of piezo crystals expand when an electric current is applied. The piezo actuators respond more precisely and repeatably providing more accurate fuel flow control. The first generation of piezo ... Read more →

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