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http://dx.doi.org/10.3795/KSME-B.2012.36.10.971

Analysis of Fast Injection Response Characteristics Between Solenoid and Piezo-Driven Injector  

Jo, In-Su (Dept. of Mechanical Engineering, Soongsil Univ.)
Lee, Jung-Hyup (Dept. of Mechanical Engineering, Soongsil Univ.)
Lee, Jin-Wook (Dept. of Mechanical Engineering, Soongsil Univ.)
Publication Information
Transactions of the Korean Society of Mechanical Engineers B / v.36, no.10, 2012 , pp. 971-977 More about this Journal
Abstract
It is well known that the performance of a diesel injector is directly related to the power, emission, and fuel consumption of the diesel combustion engine. In this study, the injection response characteristics of CRDi injectors driven by a solenoid coil and a piezoceramic were investigated by using the AMESim simulation code. Some analytical parameters such as the fuel pressure and hole diameter were considered. From this study, it was shown that the piezo-driven injector had a faster response and had better control capability than the solenoid-driven injector. In addition, it was found that the piezo-driven injector can be utilized more effectively in a multiple injection scheme than a solenoid-driven injector.
Keywords
Solenoid-Driven Injector; Piezo-Driven Injector; Inverse Piezo-Electric Effect; AMESim Simulation Code; CRDi System;
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