卡特彼勒CAT柴油发动机增压器修理技术

卡特彼勒CAT柴油发动机增压器修理技术

Caterpillar repair technology of CAT diesel engine turbocharger

卡特彼勒柴油机后面上有两个增压器，增压器透平与排气支管相连接，增压器压气机与中冷器连接。

There are two supercharger behind Caterpillar diesel engine, turbocharger turbine and the exhaust pipes are connected, the turbocharger compressor connected with intercooler.

废气进入透平壳体，推动透平叶轮，使透平和压气机转动达到每分钟70,000转（70,000rPM）。

Exhaust gas into the turbine housing, promote the turbine impeller, the turbine and compressor rotating at 70000 revolutions per minute (70000rPM).

卡特彼勒CAT柴油发动机压气机叶轮(４)的转动，吸入新鲜空气滤清器到压气机壳体空气进口(10)，压气机叶轮片压缩进入空气，因为压缩空气可以使卡特彼勒柴油机燃烧更多的燃油，发出较大效率，因而卡特彼勒柴油机的功率增加。

Caterpillar CAT diesel engine compressor impeller (4) rotation, breathe the fresh air filter to the compressor casing air inlet (10), compressor impeller blade compressed into the air, because compressed air can make Caterpillar diesel more fuel burner, a greater efficiency, thus increasing Caterpillar diesel engine power.

增压器每分钟最大转数为喷油量所控制，为高的调整空载每分钟转数和卡特彼勒柴油机工作的海拔高度所控制。

Turbocharger control revolutions per minute for the fuel injection quantity, control to adjust idle high revolutions per minute and Caterpillar diesel engine working altitude.

注意

Be careful

如果高的空载转速或喷油量大于给定喷油量(相对于卡特彼勒柴油机工作在某一海拔高度)，可能损坏卡特彼勒柴油机或增压器零件，由于卡特彼勒柴油机输出更高，超过了卡特彼勒柴油机冷却和润滑系统能力，当热量和／或摩擦增加时将发生破坏。试验适合的机器是唯一的，就是进行燃油里和高的空载转速的调整。

If the no-load speed or the fuel injection quantity higher than a given (relative to the working Caterpillar diesel engine at a certain altitude), may damage the Caterpillar diesel or turbocharger parts, because Caterpillar diesel engine output is higher, more than Caterpillar diesel engine cooling and lubricating system, when the heat and / or friction increases will occur destruction. The test for the machine is unique, is the fuel and high idle speed adjustment.

增压器轴承(５和７)应用卡特彼勒柴油机油在压力作用下进行润滑，机油通过油入口(６)进入，流经中心通道润滑轴承，而后机油从出口(１１)流出返回到油槽。

Turbocharger bearing (5 and 7) application Caterpillar diesel engine oil lubrication under pressure, the oil through the oil entrance (6) enter, flows through the center channel lubricating bearings, then the oil from the outlet (11) returned to the oil tank outflow.