Development of the technology of diagnostics of turbo-jet aviation engines by a filtering element with a diagnostic layer

Abstract

The possibility to use the Dirt Alert diagnostic layer to diagnose PS-90A engines equipped with QA-07930-01 filter elements by Pall Corporation is shown. Division of Dirt Alert diagnostic layer into parts according to their height allows to get wash samples and to make diagnostics of PS-90A engine without disassembly and replacement of main filter element before completion of its mission. Device and ultrasound methodology of wear debris particles extraction from diagnostic layer are developed. It is determined that wash sample presentability is provided by single passage of diagnostic layer in tape drive during 20 minutes. The possibility to use a statistical model of operational PS-90A engine equipped with the filter element without diagnostic layer that had been previously developed basing on wash sample analysis in order to make a diagnostic decision on PS-90A engines equipped with QA-07930-01 filter element is considered. In this model, wear debris particles ratings are used as diagnostic parameters. It is shown that parameters of wash sample wear debris particles extracted from diagnostic layer of QA-07930-01 filter element do not differ from QA-07930 filter element wash sample particles parameters. It means that PS-90A engine equipped with QA-07930-01 filter element technical state evaluation is possible with use of the statistical model of operational PS-90A engine equipped with the filter element without diagnostic layer developed basing on scintillation analysis of wash sample taken from QA-07930 filter element. The conclusion is made that perspective direction to get express and reliable results of technical state evaluation for PS-90A engine lubrication system is to equip engines of this type with QA-07930-01-type filter element.

About the authors

V. V. Drokov

Irkutsk State University

Author for correspondence.
Email: dtech@api.isu.ru

Candidate of Science

Senior researcher of Applied Physics Institute

Russian Federation

V. G. Drokov

Irkutsk State University

Email: dtech@api.isu.ru

Doctor of Science (Engineering)

Leading researcher of Applied Physics Institute

Russian Federation

V. V. Muryshenko

Irkutsk State University

Email: dtech@api.isu.ru

Engineer of Applied Physics Institute

Russian Federation

F. I. Mukhutdinov

Open Joint-Stock Company “Aviadvigatel”, Perm

Email: muhutdinov@avid.ru

Deputy head of department of diagnostics

Russian Federation

V. F. Khaliullin

Open Joint-Stock Company “Aviadvigatel”, Perm

Email: khalioullin@avid.ru

Head of КО–403

Russian Federation

References

  1. Gajdaj M.S., Drokov V.G., Kazmirov A.D., Ovchinin N.N., Skudaev Ju.D. Sposob diagnostiki sostoyaniya dvigateley [Method of diagnostics of availability of engines]. Patent RF, no. 22239172, 2004. (Publ. 27.10.2004, bull. No. 30.)
  2. Early detection of transmission failures through oil system debris assessment. Rolls–Royce plc. 2001.
  3. Drokov V.G. Stsintillyatsionnyy metod diagnostiki, obespechivayushchiy povyshenie urovnya bezopasnosti ekspluatatsii gazoturbinnykh dvigateley. Avtoref. dis. d-ra tekhn. nauk [Scintillation method of diagnostics, providing rise of the safety level in exploitation of turbo-jet engines. Abstract of doctor dissertation in techniques]. Irkutsk, 2009. 42 p.

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