Measurement of Piston Pin-Bore Oil Film Pressure under Engine Operation
Thin-film sensors were used to measure the oil film pressure distribution at the piston pin-bore interface in order to ascertain the stress distribution on the piston pin of a gasoline engine during actual operation. Thin-film sensors have been manufactured by a sputtering method to a total film thi...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-10-01
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| Series: | Lubricants |
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| Online Access: | https://www.mdpi.com/2075-4442/10/10/258 |
| _version_ | 1797431487190007808 |
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| author | Takumi Iwata Michiyasu Owashi Masakuni Oikawa Yuji Mihara Kunihiko Kobayashi Naoki Yamakawa |
| author_facet | Takumi Iwata Michiyasu Owashi Masakuni Oikawa Yuji Mihara Kunihiko Kobayashi Naoki Yamakawa |
| author_sort | Takumi Iwata |
| collection | DOAJ |
| description | Thin-film sensors were used to measure the oil film pressure distribution at the piston pin-bore interface in order to ascertain the stress distribution on the piston pin of a gasoline engine during actual operation. Thin-film sensors have been manufactured by a sputtering method to a total film thickness of about 3–6 μm. The features of thin-film sensors have been utilized to successfully measure the oil film pressure on engine main bearings, connecting rod bearings and piston skirts of both diesel and gasoline automotive engines. However, as engine lubrication conditions have become more severe year by year, it has become necessary to develop thin-film pressure sensors with higher durability. The use of diamond-like carbon (DLC) coating for the protective film of the thin-film sensor has enabled accurate measurement of oil film pressure under engine operating conditions. The AVL EXCITETM Power Unit was used in simulations with the application of elastic fluid lubrication theory. The calculated values were compared with measured data, and a comparison was made of the effect of the model constraint condition. |
| first_indexed | 2024-03-09T09:45:48Z |
| format | Article |
| id | doaj.art-6ef60ac0b0ca45d8909a4e3489c7d65b |
| institution | Directory Open Access Journal |
| issn | 2075-4442 |
| language | English |
| last_indexed | 2024-03-09T09:45:48Z |
| publishDate | 2022-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Lubricants |
| spelling | doaj.art-6ef60ac0b0ca45d8909a4e3489c7d65b2023-12-02T00:34:52ZengMDPI AGLubricants2075-44422022-10-01101025810.3390/lubricants10100258Measurement of Piston Pin-Bore Oil Film Pressure under Engine OperationTakumi Iwata0Michiyasu Owashi1Masakuni Oikawa2Yuji Mihara3Kunihiko Kobayashi4Naoki Yamakawa5Division of Mechanics, Graduate School of Tokyo City University, 1-28-1, Tamazutsumi, Setagaya-ku, Tokyo 158-8557, JapanSustainable Engine Research Center Co., Ltd., 1-33, Yayoicho, Inage-ku, Chaba-shi, Chiba 263-8522, JapanDepartment of Mechanical Engineering, Tokyo City University, 1-28-1, Tamazutsumi, Setagaya-ku, Tokyo 158-8557, JapanDepartment of Mechanical Engineering, Tokyo City University, 1-28-1, Tamazutsumi, Setagaya-ku, Tokyo 158-8557, JapanArt Metal MFG. Co., Ltd., 2-2-43, Tokiwagi, Ueda-shi, Nagano 386-0027, JapanArt Metal MFG. Co., Ltd., 2-2-43, Tokiwagi, Ueda-shi, Nagano 386-0027, JapanThin-film sensors were used to measure the oil film pressure distribution at the piston pin-bore interface in order to ascertain the stress distribution on the piston pin of a gasoline engine during actual operation. Thin-film sensors have been manufactured by a sputtering method to a total film thickness of about 3–6 μm. The features of thin-film sensors have been utilized to successfully measure the oil film pressure on engine main bearings, connecting rod bearings and piston skirts of both diesel and gasoline automotive engines. However, as engine lubrication conditions have become more severe year by year, it has become necessary to develop thin-film pressure sensors with higher durability. The use of diamond-like carbon (DLC) coating for the protective film of the thin-film sensor has enabled accurate measurement of oil film pressure under engine operating conditions. The AVL EXCITETM Power Unit was used in simulations with the application of elastic fluid lubrication theory. The calculated values were compared with measured data, and a comparison was made of the effect of the model constraint condition.https://www.mdpi.com/2075-4442/10/10/258heat engineengine component or elementpiston pin borethin-film sensoroil film pressureElasto-hydrodynamic lubrication |
| spellingShingle | Takumi Iwata Michiyasu Owashi Masakuni Oikawa Yuji Mihara Kunihiko Kobayashi Naoki Yamakawa Measurement of Piston Pin-Bore Oil Film Pressure under Engine Operation Lubricants heat engine engine component or element piston pin bore thin-film sensor oil film pressure Elasto-hydrodynamic lubrication |
| title | Measurement of Piston Pin-Bore Oil Film Pressure under Engine Operation |
| title_full | Measurement of Piston Pin-Bore Oil Film Pressure under Engine Operation |
| title_fullStr | Measurement of Piston Pin-Bore Oil Film Pressure under Engine Operation |
| title_full_unstemmed | Measurement of Piston Pin-Bore Oil Film Pressure under Engine Operation |
| title_short | Measurement of Piston Pin-Bore Oil Film Pressure under Engine Operation |
| title_sort | measurement of piston pin bore oil film pressure under engine operation |
| topic | heat engine engine component or element piston pin bore thin-film sensor oil film pressure Elasto-hydrodynamic lubrication |
| url | https://www.mdpi.com/2075-4442/10/10/258 |
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