何邦全,叶飞.外开式汽油喷油器喷雾特性研究[J].农业机械学报,2015,46(6):275-281. He Bangquan,Ye Fei.Spray Characteristics of An Outward-opening Gasoline Piezoelectric Injector[J].Transactions of the Chinese Society for Agricultural Machinery,2015,46(6):275-281.
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Abstract:The spray characteristics of gasoline, n-butanol and ethanol injected from an outward-opening gasoline piezoelectric injector were investigated with Schlieren and laser Mie scattering techniques in a constant volume vessel. Experimental results showed that the hollow conical spray was composed of numerous tiny jets. The macrostructures of spray were affected by the magnitude of back pressure. With the increase of back pressure, the gap between two adjacent jets was decreased and finally disappeared. In the meantime, the penetration and projected area of spray were sharply reduced. However, the spray cone angel was nearly unchanged with time regardless of the magnitude of back pressure and fuel types. Furthermore, the decline of spray penetration was always larger in horizontal direction than that in vertical direction. But the penetration in horizontal direction was longer than that in vertical direction. The spray penetration in vertical direction for ethanol and n-butanol with relatively higher viscosity was longer than that for gasoline, which was contributed to the vortex formed during injection. The larger the scale of the vortex, the longer the penetration in horizontal direction was. |
Transactions of the Chinese Society for Agriculture Machinery (CSAM), in charged of China Association for Science and Technology (CAST), sponsored by CSAM and Chinese Academy of Agricultural Mechanization Science(CAAMS), started publication in 1957. It is the earliest interdisciplinary journal in Chinese which combines agricultural and engineering. It always closely grasps the development direction of agriculture engineering disciplines and the published papers represent the highest academic level of agriculture engineering in China. Currently, nearly 8,000 papers have been already published. There are around 3,000 papers contributed to the journal each year, but only around 600 of them will be accepted. Transactions of CSAM focuses on a wide range of agricultural machinery, irrigation, electronics, robotics, agro-products engineering, biological energy, agricultural structures and environment and more. Subjects in Transactions of the CSAM have been embodied by many internationally well-known index systems, such as: EI Compendex, CA, CSA, etc.
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