Evaluation of Instability Phenomena in a Common Rail Injection System for High Speed Diesel Engines

Paper #:
  • 1999-01-0192

Published:
  • 1999-03-01
Citation:
Ficarella, ., Laforgia, D., and Landriscina, V., "Evaluation of Instability Phenomena in a Common Rail Injection System for High Speed Diesel Engines," SAE Technical Paper 1999-01-0192, 1999, https://doi.org/10.4271/1999-01-0192.
Pages:
21
Abstract:
An existing simulation code of a COMMON RAIL Diesel fuel injector, named UNIJET, has been revised and completed, with the aim to predict injection characteristics and to investigate on the instabilities which appeared in experimental tests. Particular attention has been given to the injector control valve modeling, to understand the influence of cavitation on discharge flow characteristics. The valve residual motion, after a Pilot Injection cycle, is responsible for the clear and sudden injected quantity variations of subsequent Master injection, as the time delay between the two cycles decreases. Numerical predictions have been compared with valve lift measurements, and with experimental relation among fuel injected quantity, injection pressure and duration.
Access
Now
SAE MOBILUS Subscriber? You may already have access.
Buy
Select
Price
List
Download
$27.00
Mail
$27.00
Members save up to 40% off list price.
Share
HTML for Linking to Page
Page URL

Related Items

Technical Paper / Journal Article
2010-09-28
Training / Education
2009-12-15
Technical Paper / Journal Article
2010-09-28
Training / Education
2018-06-05
Article
2017-03-13