Infrared High-Speed Thermography of Piston Surface on Diesel Engine
高速度赤外線カメラを用いたディーゼルエンジンピストン表面の時系列温度分布計測
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- Publication code
- 20254599
- Paper/Info type
- JSAE Transaction
Vol.56 No.5
- Pages
- 896-901(Total 6 p)
- Date of publication
- Sep 2025
- Publisher
- JSAE
- Language
- Japanese
Detailed Information
| Category(J) | 論文 Translation |
|---|---|
| Category(E) | Paper |
| Author(J) | 1) 宮下 和也, 2) 古川 伸哉, 3) 石井 義範, 4) 小澤 恒 |
| Author(E) | 1) Kazuya Miyashita, 2) Shinya Furukawa, 3) Yoshinori Ishii, 4) Hisashi Ozawa |
| Affiliation(J) | 1) （株）いすゞ中央研究所, 2) （株）いすゞ中央研究所, 3) （株）いすゞ中央研究所, 4) （株）いすゞ中央研究所 |
| Abstract(J) | 燃焼CFDでは各現象を表現したモデルを組み合わせることによりシリンダ内の燃焼を再現している．しかしその再現性には課題があり，特に壁面熱損失の精度検証が必要である．本報では高速度赤外線カメラを用いてピストン表面の赤外放射を直接可視化し，検証に必要な実機エンジンにおける時系列壁面温度分布を計測した． Translation |
| Abstract(E) | For better understanding and model validation of wall heat loss on diesel engines, high-speed thermography of piston surface impinged by a diesel spray flame was attempted in a top-view optical engine. Infrared radiation from the piston surface was directly visualized through the sapphire window using a high-speed infrared camera. As a result, it was demonstrated that infrared high-speed thermography can be applied to the diesel engine piston surface by suppressing the soot luminosity using oxygen-containing fuel such as Oxymethylene Dimethyl Ethers (OME), simultaneous imaging with a visible camera to distinguish the soot luminosity in the infrared radiation image, and using a bandpass filter to cut off the infrared radiation from the gas components in the cylinder. |
