Operational evaluation of piston ring wear in large marine diesel engines

• Autorzy: Adamkiewicz, A. , Drzewieniecki, J.
• Języki publikacji: EN

Abstrakty

EN

This article presents operational evaluation of piston ring wear in large marine diesel engines based on inspection through cylinder liner scavenge ports. It contains a description of verification methods of piston rings based on visual inspections, clearance measurement of piston rings in piston grooves and piston rings gap measurement. Moreover, it is indicated that piston ring gap measurements can lead to an evaluation of piston ring wear and by calculating into running hours can be treated as a reference parameter at next inspections and a parameter determining wear trends. Furthermore, application of chromium layers on working surfaces of piston rings enforces the need to control chromium layer wear by measuring the layer thickness by induction and eddy current methods. Concluding, the authors discussed constructional – operational methods of improvement between tribological pair – liner and piston rings in working conditions .

Słowa kluczowe

EN

large marine diesel engines; tribological pair; wear; piston rings; chromium layer; piston gap

• Czasopismo: Journal of Polish CIMAC
• Rocznik: 2012
• Tom: Vol. 7, no 1
• Strony: 9-17
• Opis fizyczny: Bibliogr. 8 poz., rys., tab.

Twórcy

autor

Adamkiewicz, A.

autor

Drzewieniecki, J.

• Maritime University of Szczecin Department of Condition Monitoring & Maintenance of Machinery ul. Podgórna 52/53, 70-205 Szczecin tel.: [phone], fax: [phone],

Bibliografia

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• [5] Mitsui MAN B&W: Piston Inspection Gauge. Mitsui Engineering Co. Ltd. 2010.
• [6] DU-Sulzer: Simple Estimation of Piston Ring Wear Amount. Service Information, DUQ1-006E. Diesel United Sulzer Ltd. 05.06.1990.
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• [8] Mitsui OSK Lines: Specification of Counter Measures Related to Ring/ Liner on Ships with UEC85LSII Mitsubishi Engines. Mitsubishi Circular Note No. WMS-9634E, Marine Diesel Engine Department, Mitsubishi Heavy Industries Co. Ltd. Oct. 2011.