Tribological wear of diesel engine atomisers

• Autorzy: Bielawski P. , Raunmiagi Z.
• Języki publikacji: EN

Abstrakty

EN

The authors indicate design changes in injection systems that result in increased tribological loads of atomizers. It is observed that mechanisms of tribological wear of atomizers should be examined in detail. The following four tribological nodes were identified in an atomizer: guide-cylindrical part of the needle, atomizer seat-closing cone of the needle, needle front surface-front surface of injector spring, atomizer front surface-body front surface. A limited set of one type of atomizers was visually examined. Typical images of damage for each node are presented and wear mechanisms are described as well as the feedback between the technical conditions of atomizer tribological nodes and the node load. The authors indicate that: the technical condition of the needle-guide node affects the force imposing a load on the other nodes; the wear of needle front surface-spring node and the seat-needle cone node results in an increased travel of the needle; the time to failure should be considered as the time to the loss of tightness and depends on the distribution of wear on the ring circumference of the conical seat-needle contact.

Słowa kluczowe

EN

technical diagnostic; combustion engine; injection system; atomizer; tribological nodes; tribological wear

• Wydawca: Faculty of Ocean Engineering and Ship Technology, Gdańsk University of Technology
• Czasopismo: Journal of Polish CIMAC
• Rocznik: 2013
• Tom: Vol. 8, no 2
• Strony: 7--12
• Opis fizyczny: Bibliogr. 3 poz., rys., fot.

Twórcy

autor

Bielawski P.

• Maritime University of Szczecin ul. Podgórna 51/53, 70-205 Szczecin, Poland tel.: [phone], fax: [phone]

autor

Raunmiagi Z.

• Maritime University of Szczecin ul. Podgórna 51/53, 70-205 Szczecin, Poland tel.: [phone], fax: [phone]

Bibliografia

• [1] Greuter, E., Zima, S., Motorschäden. Schäden an Verbrennungsmotoren und deren Ursachen, Vogel Buchverlag, Würzburg 2000, 2. Alflage.
• [2] Leonard, R., Parche, M., Kendlbacher, Ch., Einspritztechnik für Schiffsdieselmotoren, MTZ 04/2011 (72. Jahrgang), 262–269.
• [3] Raunmiagi, Z., Naprawy wybranych okrętowych elementów maszyn za pomocą obróbki ubytkowej, Wydawnictwo Naukowe Akademii Morskiej w Szczecinie, Szczecin 2010.