Diagnostics of in-cylinder flow, mixing and combustion in gasoline engines

被引:34
作者
Kuwahara, K [1 ]
Ando, H [1 ]
机构
[1] Mitsubishi Motors Corp, Car Res & Dev Ctr, Power Train Res Dept, Okazaki, Aichi 4448501, Japan
关键词
gasoline engine; flow; mixing; combustion; velocimetry; visualization; spectrum analysis;
D O I
10.1088/0957-0233/11/6/202
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
In a premixed leanburn engine employing an in-cylinder rotating flow, tumble, the influence of the in-cylinder flow field structure on combustion was investigated with a two-dimensional PTV, a three-dimensional PTV and the analysis of continuous and cycle-to-cycle UV flame images. As a result, optimum combustion control was achieved by controlling the generation of turbulence. In a gasoline direct injection engine adopting a wide spacing layout, the characteristics of mixture preparation were investigated by visualizing a fuel spray with laser shadowgraphy and LIF, and deriving the mixture strength at the spark plug from spectrum analysis of spark discharge emission. Also, the combustion characteristics were investigated by analysing flame emission spectra continuously, and imaging UV luminescence and thermal radiation of flame emission simultaneously. Consequently, it was clarified that combustion control is achieved by controlling air-fuel mixing.
引用
收藏
页码:R95 / R111
页数:17
相关论文
共 39 条
[1]   FLUORESCENCE IMAGING INSIDE AN INTERNAL-COMBUSTION ENGINE USING TUNABLE EXCIMER LASERS [J].
ANDRESEN, P ;
MEIJER, G ;
SCHLUTER, H ;
VOGES, H ;
KOCH, A ;
HENTSCHEL, W ;
OPPERMANN, W ;
ROTHE, E .
APPLIED OPTICS, 1990, 29 (16) :2392-2404
[2]  
[Anonymous], 922356 SAE
[3]  
[Anonymous], 960600 SAE
[4]  
[Anonymous], 980158 SAE
[5]  
Arcoumanis C., 1994, SAE TECHNICAL PAPER, V103, P197, DOI [10.4271/940475, DOI 10.4271/940475]
[6]  
Baritaud T.A., 1992, SAE TECHNICAL PAPER
[7]  
BATES S, 1989, 892086 SAE
[8]  
FANSLER TD, 1995, 950110 SAE
[9]  
Felton P.G., 1988, 881633 SAE
[10]  
FIELDS M, 1995, 950105 SAE