Measurement and Evaluation of In-Cylinder Combustion Using an Optical Combustion Sensor.

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  • 点火プラグ一体形燃焼光検出器によるシリンダ内燃焼計測および評価法の検討
  • テンカ プラグ イッタイガタ ネンショウ ヒカリ ケンシュツキ ニ ヨル シリ

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Abstract

Compliance with future exhaust emission and fuel consumption standards for passenger cars will require fundamental improvements in the combustion process for spark ignition engines. Improvements must be made in fuel-injection devices based on precise studies of the engine combustion process. Real-time measurement of light emission from inside the cylinder in an actual automotive engine is currently scarce. In this paper, a real-time measurement method using an optical combustion sensor that combines fiber optics with a conventional spark plug is presented. Diffusion combustion, air-fuel ratio and temperature of the flame are measured by means of spectroscopy of the combustion luminosity. The fuel injection device is evaluated in terms of these measured parameters.

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