Friction Characteristics of Steel Pistons for Diesel Engines
The use of iron pistons is increasing due to the higher power requirements of diesel truck engines. Expansion of the iron piston is a common concern. The purpose of this study is to clarify the lubrication conditions of cast iron and steel pistons. Friction of steel and cast iron pistons were measur...
| Main Authors: | , , , , |
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| Other Authors: | |
| Format: | Article |
| Language: | en_US |
| Published: |
Elsevier
2014
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| Online Access: | http://hdl.handle.net/1721.1/91633 |
| _version_ | 1826217156116742144 |
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| author | Kim, Dallwoo Ito, Akemi Ishikawa, Yasuhiro Osawa, Katsuyuki Iwasaki, Yoshiyuki |
| author2 | Massachusetts Institute of Technology. Department of Mechanical Engineering |
| author_facet | Massachusetts Institute of Technology. Department of Mechanical Engineering Kim, Dallwoo Ito, Akemi Ishikawa, Yasuhiro Osawa, Katsuyuki Iwasaki, Yoshiyuki |
| author_sort | Kim, Dallwoo |
| collection | MIT |
| description | The use of iron pistons is increasing due to the higher power requirements of diesel truck engines. Expansion of the iron piston is a common concern. The purpose of this study is to clarify the lubrication conditions of cast iron and steel pistons. Friction of steel and cast iron pistons were measured using the floating liner method. The friction of conventional aluminum pistons was also measured for comparison in this study. The measurement of the secondary motion of each piston was carried out to analyse piston friction, and the following findings were obtained. The cast iron piston showed boundary lubrication at compression top dead center (TDC). This is presumably caused by the larger tilting angle of the piston induced by the larger piston clearance. Steel pistons showed hydrodynamic lubrication conditions at TDC and BDC through each cycle, due to a good oil supply. |
| first_indexed | 2024-09-23T16:58:55Z |
| format | Article |
| id | mit-1721.1/91633 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T16:58:55Z |
| publishDate | 2014 |
| publisher | Elsevier |
| record_format | dspace |
| spelling | mit-1721.1/916332022-10-03T09:34:08Z Friction Characteristics of Steel Pistons for Diesel Engines Kim, Dallwoo Ito, Akemi Ishikawa, Yasuhiro Osawa, Katsuyuki Iwasaki, Yoshiyuki Massachusetts Institute of Technology. Department of Mechanical Engineering Sloan Automotive Laboratory Kim, Dallwoo The use of iron pistons is increasing due to the higher power requirements of diesel truck engines. Expansion of the iron piston is a common concern. The purpose of this study is to clarify the lubrication conditions of cast iron and steel pistons. Friction of steel and cast iron pistons were measured using the floating liner method. The friction of conventional aluminum pistons was also measured for comparison in this study. The measurement of the secondary motion of each piston was carried out to analyse piston friction, and the following findings were obtained. The cast iron piston showed boundary lubrication at compression top dead center (TDC). This is presumably caused by the larger tilting angle of the piston induced by the larger piston clearance. Steel pistons showed hydrodynamic lubrication conditions at TDC and BDC through each cycle, due to a good oil supply. 2014-11-20T13:44:37Z 2014-11-20T13:44:37Z 2013-06 2012-06 Article http://purl.org/eprint/type/JournalArticle 22387854 http://hdl.handle.net/1721.1/91633 Kim, Dallwoo, Akemi Ito, Yasuhiro Ishikawa, Katsuyuki Osawa, and Yoshiyuki Iwasaki. “Friction Characteristics of Steel Pistons for Diesel Engines.” Journal of Materials Research and Technology 1, no. 2 (July 2012): 96–102. © 2012 Brazilian Metallurgical, Materials and Mining Association en_US http://dx.doi.org/10.1016/S2238-7854(12)70018-2 Journal of Materials Research and Technology Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf Elsevier Elsevier |
| spellingShingle | Kim, Dallwoo Ito, Akemi Ishikawa, Yasuhiro Osawa, Katsuyuki Iwasaki, Yoshiyuki Friction Characteristics of Steel Pistons for Diesel Engines |
| title | Friction Characteristics of Steel Pistons for Diesel Engines |
| title_full | Friction Characteristics of Steel Pistons for Diesel Engines |
| title_fullStr | Friction Characteristics of Steel Pistons for Diesel Engines |
| title_full_unstemmed | Friction Characteristics of Steel Pistons for Diesel Engines |
| title_short | Friction Characteristics of Steel Pistons for Diesel Engines |
| title_sort | friction characteristics of steel pistons for diesel engines |
| url | http://hdl.handle.net/1721.1/91633 |
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