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A Novel Air Cycling Valve for Combustion Engines

[+] Author Affiliations
Steffen Braune, Klaus-Dietrich Kramer

University of Applied Studies and Research, Wernigerode, Germany

Paper No. DSCC2011-6144, pp. 765-769; 5 pages
doi:10.1115/DSCC2011-6144
From:
  • ASME 2011 Dynamic Systems and Control Conference and Bath/ASME Symposium on Fluid Power and Motion Control
  • ASME 2011 Dynamic Systems and Control Conference and Bath/ASME Symposium on Fluid Power and Motion Control, Volume 1
  • Arlington, Virginia, USA, October 31–November 2, 2011
  • Conference Sponsors: Dynamic Systems and Control Division
  • ISBN: 978-0-7918-5475-4
  • Copyright © 2011 by ASME

abstract

This paper describes a novel actuator used as a drive system for an air cycling valve (ACV) for combustion engines. With this actuator concept, which is based on a single-phase synchronous motor, a small construction volume, a high torque density, combined with low power consumption and a robust construction is realized. The ACV enables a torque advance for the combustion engine for lower engine speed and an improvement of fuel economy, associated with a reduction of CO2 . It is installed into the inlet manifold with no modification of the cylinder head. Extremely high angular accelerations with high velocities are realized to switch the flap of the air cycling valve in less then two milliseconds with a rotation angle of 45 degree. Described is the design procedure and used control algorithm.

Copyright © 2011 by ASME
Topics: Combustion , Engines , Valves

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