The effects of DLC-coated journal on improving seizure limit and reducing friction under engine oil lubrication
| Autor: | Yuji Mihara, Makoto Kano, Hidemi Ogihara, Takumi Iwata |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Bearing (mechanical)
Materials science Mechanical Engineering Aerospace Engineering Ocean Engineering 02 engineering and technology 021001 nanoscience & nanotechnology Combustion Automotive engineering law.invention 020303 mechanical engineering & transports 0203 mechanical engineering law Automotive Engineering Lubrication Fuel efficiency Limit (mathematics) 0210 nano-technology |
| Zdroj: | International Journal of Engine Research. 23:1267-1274 |
| ISSN: | 2041-3149 1468-0874 |
| DOI: | 10.1177/14680874211012934 |
| Popis: | Internal combustion engines have been improved markedly in recent years through efforts to conserve resources, reduce emissions and improve fuel efficiency. In this regard, the authors have been working to reduce friction and improve the seizure properties of the crankshaft main journal and main bearing. These mechanical components of internal combustion engines incur large friction losses. In order to reduce friction, journals have been coated with a diamond-like carbon (DLC) coating, which has been reported to reduce friction in the fluid lubrication regime in recent years. Another current issue of journals and bearings is the need to improve seizure resistance. Therefore, these properties were evaluated for material combinations of aluminium alloy bearings and DLC-coated journals, which have low affinity. The results revealed that friction was reduced under a fluid lubrication regime and seizure resistance was improved under a mixed lubrication regime. |
| Databáze: | OpenAIRE |
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