This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Research of Knocking Deterioration due to Accumulated Carbon Deposits on Piston Surfaces
Technical Paper
2019-01-1141
ISSN: 0148-7191, e-ISSN: 2688-3627
This content contains downloadable datasets
Annotation ability available
Sector:
Language:
English
Abstract
The quantity of heavy components in fuel is increasing as automotive fuels diversify, and engine oil formulations are becoming more complex. These trends result in the formation of larger amounts of carbon deposits as reaction byproducts during combustion, potentially worsening the susceptibility of the engine to knock [1]. The research described in this paper aimed to identify the mechanism that causes knocking to deteriorate due to carbon deposits in low to medium engine load ranges, which are mainly used when the vehicle drives off and accelerates. With this objective, the cylinder temperature and pressure with and without deposits were measured, and it was found that knocking deteriorates in a certain range of ignition timing. Additionally, this paper reports the results of an investigation into the relationship between the rate at which the ignition is retarded by the knocking control system (KCS) and the time required to eliminate knocking; this was carried out to help formulate a control plan to resolve the effects of knocking deterioration.
Recommended Content
Authors
Topic
Citation
Hosogi, T., Kaneko, R., Ito, H., and Sunami, K., "Research of Knocking Deterioration due to Accumulated Carbon Deposits on Piston Surfaces," SAE Technical Paper 2019-01-1141, 2019, https://doi.org/10.4271/2019-01-1141.Data Sets - Support Documents
| Title | Description | Download |
|---|---|---|
| Unnamed Dataset 1 | ||
| Unnamed Dataset 2 |
Also In
References
- Kikuchi , G. , Miyagawa , M. , Inayoshi , N. , and Yamamoto , Y. Mechanism of Deposit Accumulation on Gasoline EGR System Transactions of the Society of Automotive Engineers of Japan 20156112 2015
- Agency for Natural Resources and Energy 2010
- Esaki , Y. , Nakai , K. , Amano , K. , and Abiko , K. Characterization of Deposits Formed in Automotive Engines Bunseki Kagaku 62 2 89 98 2013
- Hayakawa , N. , Miura , K. , Miyasaka , T. , Iijima , A. et al. Analysis of the Influence of Engine Oil Additives on Abnormal Combustion in an SI Engine Internal Combustion Engine Symposium of Japan 10 2014
- Matsumura , M. , Moriyoshi , Y. , Kuboyama , T. , Murata , K. et al. Effect of Lubricant Compositions on Knocking in SI Combustion Using a RCEM Internal Combustion Engine Symposium of Japan 9 2014
- Inoue , T. , Imaoka , Y. , Shiraishi , T. , and Noda , T. Reducing Knock Occurrence and Thermal Efficiency Improvement by the Optimization of the Combustion Chamber Cooling Transactions of the Society of Automotive Engineers of Japan 20166137 2016
- Hatsuzawa , H. , Tanaka , K. , and Konno , M. Effect of EGR on Deposit Adhered on the Electronic Throttle Body Internal Combustion Engine Symposium of Japan 63 2014
- Woschni , G. and Huber , K. The Influence of Soot Deposits on Combustion Chamber Walls on Heat Losses in Diesel Engines SAE Technical Paper 910297 1991 10.4271/910297
- Hafnan , M. and Nishiwaki , K. Determination of Thermal Conductivity and Thermal Diffusivity of S.I. Engine Combustion Chamber Deposits Transactions of the Japan Society of Mechanical Engineers 94 2056 1995