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摘要在定容燃烧装置与B1135型单缸机上,对陶瓷隔热复合机的燃烧过程进行了试验研究.结果表明,由于陶瓷隅热复合机的压缩终点温度和压力很高,使滞燃期过短,空气粘度高,着火点在喷油嘴孔口附近,初期火焰横贯喷注,使空气与燃油混合条件差,因而仍沿用常规发动机燃烧系统参数时,燃烧过程恶化、燃油消耗率上升.采用减小喷油嘴孔径、增多喷孔数以改善空气与燃油的混合条件,以及采用低16烷值、低粘度燃油以获得滞燃期加长、着火点远离孔端等措施.对改善陶瓷隔热复合机燃烧过程具有良好的效果.
Abstract The combustion process of the ceramic composite laminator was studied on a constant volume combustion unit and a B1135 single cylinder machine.The results showed that due to the high compression end temperature and pressure of the ceramic corner compounding machine, Short, high air viscosity, ignition point near the nozzle orifice, the initial flame traversal injection, the air and fuel mixing conditions are poor, thus still using conventional engine combustion system parameters, the combustion process deteriorates, the fuel consumption rate increases. Small nozzle diameter, increase the number of holes to improve the mixing of air and fuel conditions, and the use of low-16, low viscosity fuel to obtain a longer ignition delay, the ignition point away from the hole and other measures to improve the ceramic insulation composite machine The combustion process has a good effect.