La Houille Blanche
Number 5-6, Août 1998
|Page(s)||35 - 41|
|Published online||01 August 2009|
Erosion-cavitation dans les perçages de refoulement des pompes d'injection de diesels industriels
Erosion-Cavitation in drilling at the industrial diesel injection pumps backflow
Service Technique Moteurs, S.E.M.T. Pielstick, Saint-Nazaire
2 Service Projets Thermodynamiques, S.E.M.T. Pielstick, Saint-Denis
This paper treats one of the difficulties of injection system for Diesel engines: the cavitation. It namely describes how SEMT Pielstick faces erosion-cavitation on running engines, how the source of erosion is understood and the way to avoid it. The lack of knowledge on cavitation fluid and on the kind of cavitation involved an important experimental stage to show the erosion mechanism. After this first stage, a two dimensional calculation of the jet subjected to cavitation including the vapor bubbles was performed. The goal was to be able to forecast the areas which were eroded with a permanent flow in a defined geometry. Finally some solutions to reduce the effect of the cavitation are described. The study of this problem exhibited great difficulties in measurement and an important need of predictive calculation on cavitation.
© Société Hydrotechnique de France, 1998
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.