Piezoelectric valve actuator for flexible diesel operation

Brian J. MacLachlan; Niell Elvin; Carl Blaurock; N. Jared Keegan

doi:10.1117/12.545625

29 July 2004 Piezoelectric valve actuator for flexible diesel operation

Brian J. MacLachlan, Niell Elvin, Carl Blaurock, N. Jared Keegan

Proceedings Volume 5388, Smart Structures and Materials 2004: Industrial and Commercial Applications of Smart Structures Technologies; (2004) https://doi.org/10.1117/12.545625
Event: Smart Structures and Materials, 2004, San Diego, CA, United States

Abstract

Mide Technology Corporation, under the supervision of the U.S. Army, is developing fast hydraulic valve technologies for fuel injection systems. Mide aims to address the Army's 21st Century Vehicle programs by providing the flexibility to achieve economic, environmentally friendly, and power dense diesel operation from a single platform. The technology couples a highly efficient gained piezoelectric actuator to a diesel unit injector's control valve spool. Piezoelectric actuation enables proportional authority over the injector's control valve, as opposed to traditional digital (on/off) operation. This authority allows the integrated device to provide electronically controlled fuel injection rate shaping capability. Each injection event profile may be independently shaped to govern diesel engine operation in one of three selectable modes: Lean, for fuel efficiency; Clean, for reduced emissions; Mean, for improved battlefield performance. To date, Mide has shown injection rate shaping capability in the laboratory using the industry standard "rate tube test" to measure injection profiles. Future development will focus on an engine demonstration of Lean, Clean, and Mean operating mode flexibility using rate shaping technology.

Citation Download Citation

Brian J. MacLachlan, Niell Elvin, Carl Blaurock, and N. Jared Keegan "Piezoelectric valve actuator for flexible diesel operation", Proc. SPIE 5388, Smart Structures and Materials 2004: Industrial and Commercial Applications of Smart Structures Technologies, (29 July 2004); https://doi.org/10.1117/12.545625

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