摘 要
横纹管中的空气密度不仅决定于横纹管空气压力，而且还与进入气缸的气温有关。新鲜空气在涡轮横纹管器中虽提高了压力，但气温也伴随着空气压缩而上升，气体热胀的结果抵销了气压升高的一部分效果。
实践表明：如使进入气缸前的横纹管空气冷却，则横纹管横纹管的效果会更好。例如，进入气缸的横纹管空气每降温10°C，约可使横纹管功率提高2.5～3％，油耗降低2～3克／马力小时,排气温度降低，横纹管受热机件酌热状态得到改善.涡轮叶片也可在接受的排气温度下工作，这使得横纹管的工作可靠性和经济性有所提高。因此，在横纹管器压气机蜗壳出口到进入横纹管之间的空气通道上有必要设置横纹管空气中间冷却器(简称中冷器)。
课题主要任务就是在横纹管的废气涡轮横纹管系统中如何设计配置中间空气冷却器，从而使其在任何工况下都能获得比较理想的工作状态，并寻求在拖拉机上配用废气涡轮横纹管横纹管的横纹管中冷器设计成果。
关键词：横纹管；中冷器；涡轮增加
Abstract
Stripes tube air density depends not only on the charge air pressure, but also with entering the cylinder temperature related. Fresh air in the turbocharger pressure, although improved, but also the temperature rise associated with compressed air, the results of thermal expansion of the gas pressure increases offset the effect of a part.
Practice shows that: If entering charge air cooling before cylinders, the pressurized pipe stripes would be better. For example, pressurized air into the cylinder every cool 10 ° C, about stripes tube power can increase 2.5 to 3%, reduce fuel consumption by 2 to 3 g / hp-hr, the exhaust gas temperature is lowered, stripes tube heat hot parts discretion status improved. Turbine blade can also operate at an acceptable temperature exhaust gas, which makes pipe stripes operational reliability and economy improved. Therefore, in the turbocharger compressor outlet volute to enter it is necessary to set the charge air intercooler (the cooler) stripes on the tube between the air passage.
The main task is to subject the exhaust gas turbocharger system stripes tube how intermediate air cooler design configuration, so that it can be in any condition to obtain ideal working conditions and seek on a tractor equipped with an exhaust gas turbine pressurized pipe stripes supercharger intercooler design results.
Keywords: stripes tube; in the cold; turbocharged
目 录
)传热单元数(NTU)法校核横纹管 19