Location of Repository

Detection of diesel engine valve clearance by acoustic emission.

By Fathi Elamin, Yibo Fan, Fengshou Gu and Andrew Ball

Abstract

This paper investigated, using experimental method, the suitability of acoustic emission (AE) technique for the condition monitoring of diesel engine valve faults. The clearance fault was adjusted experimentally in an exhaust valve and successfully detected and diagnosed in a Ford FSD 425 four-cylinder, four-stroke, in-line OHV, direct injection diesel engine. The effect of faulty exhaust valve clearance on engine performance was monitored and the difference between the healthy and faulty engine was observed from the recorded AE signals. The measured results from this technique show that using only time domain and frequency domain analysis of acoustic emission signals can give a superior measure of engine condition. This concludes that acoustic emission is a powerful and reliable method of detection and diagnosis of the faults in diesel engines and this is considered to be a unique approach to condition monitoring of valve performance

Topics: T1, TL
Publisher: University of Huddersfield
Year: 2009
OAI identifier: oai:eprints.hud.ac.uk:6854

Suggested articles

Preview

Citations

  1. (2004). Acoustic Emission as a Tool to Reveal Diesel Injector Performance.
  2. Acoustic emission mapping of diesel engine for doi
  3. Consortium. Deliverable 3, specification of preliminary sensor array.
  4. (1996). Detection and Diagnosis of Valve Faults in Recuperating Compressors,
  5. Exhaust valve leakage detection in large.
  6. (2005). The exploitation of instantaneous angular speed for machinery condition monitoring” doi
  7. (2000). Vibration Monitoring of Diesel Engines Using Wavelet Packet Analysis and Image Processing”, Research Report,

To submit an update or takedown request for this paper, please submit an Update/Correction/Removal Request.