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  • Summary & Details

Oil Film Distribution and Skirt Friction Loss in Concave Created by Piston Skirt Profile or Pattern Coating

ピストンスカートプロファイルまたはパターンコーティングにより付加された凹部内の油膜分布とスカート部摩擦損失

Detailed Information

Author(J)1) 大島 潤平, 2) 佐藤 健太, 3) 川島 久宜, 4) 鈴木 秀和, 5) 石間 経章
Author(E)1) Junpei Oshima, 2) Kenta Sato, 3) Hisanobu Kawashima, 4) Hidekazu Suzuki, 5) Tsuneaki Ishima
Affiliation(J)1) 群馬大学, 2) 群馬大学, 3) 群馬大学, 4) 群馬大学, 5) 群馬大学
Affiliation(E)1) Gunma University, 2) Gunma University, 3) Gunma University, 4) Gunma University, 5) Gunma University
Abstract(J)スカートプロファイル凹部の油膜分布を仮定した計算によりFMEP低減があること確認されている.本報告では実際に凹部があるピストンを試作して凹部の油膜分布を観察し,凹部へのオイル流入過程を考察した.得られた凹部油膜分布を用いてスカート部のFMEP計算を行った.その結果,凹部によるFMEP低減効果があることが分った.

Translation

Abstract(E)The FMEP reduction of the skirt with the concave on the sliding surface has been estimated by calculations. Pistons with the concave in skirt profile were tested. The distribution of the oil film in the concave area was observed, and the process of oil inflow into the concave area was investigated. The skirt FMEP calculation was carried out using the results of obtained oil film distribution in the concave. The concave area has an effect of reducing skirt FMEP.

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