Spectroscopic Studies of Internal Injector Deposits (IDID) Resulting from the Use of Non-Commercial Low Molecular Weight Polyisobutylenesuccinimide (PIBSI)

Barker, Jim; Reid, Jacqueline; Snape, Colin; Scurr, David; Meredith, William

Abstract

Copyright © 2014 SAE International. Since 2009, there has been a rise in deposits of various types found in diesel fuel injection systems. They have been identified in the filter, the injector tip and recently inside the injector. The latter internal diesel injector deposits (IDIDs) have been the subject of a number of recent publications, and are the subject of investigations by CRC (Central Research Council Diesel Performance Group-Deposit Panel Bench/ Rig Investigation sub panel) in the US and CEN (Committee European de Normalisation TC19/WG24 Injector Deposit Task Force) and CEC (Coordinating European Council TDFG-110 engine test) in Europe. In the literature one of the internal injector deposit types, amide lacquers, has been associated with a poorly characterised noncommercial low molecular weight polyisobutylene succinimide detergent which also lacked provenance. This work will describe a well characterised non-commercial low molecular weight polyisobutylenesuccinimide, the engine tests associated with it and the spectroscopic analysis of the needle of the resultant stuck injectors. An engine test of a commercial grade PIBSI detergent that showed no sticking will also be described.

Citation

Barker, J., Reid, J., Snape, C., Scurr, D., & Meredith, W. (2014). Spectroscopic Studies of Internal Injector Deposits (IDID) Resulting from the Use of Non-Commercial Low Molecular Weight Polyisobutylenesuccinimide (PIBSI). SAE International Journal of Fuels and Lubricants, 7(3), 762-770. https://doi.org/10.4271/2014-01-2720

• Journal Article Type: Article
• Acceptance Date: Jan 1, 2014
• Online Publication Date: Oct 13, 2014
• Publication Date: Oct 13, 2014
• Deposit Date: Jan 15, 2020
• Journal: SAE International Journal of Fuels and Lubricants
• Electronic ISSN: 1946-3960
• Publisher: SAE International
• Peer Reviewed: Peer Reviewed
• Volume: 7
• Issue: 3
• Pages: 762-770
• DOI: https://doi.org/10.4271/2014-01-2720
• Public URL: https://nottingham-repository.worktribe.com/output/3187466
• Publisher URL: https://saemobilus.sae.org/content/2014-01-2720/