| 摘要 |
PURPOSE:To make a special external energy for operating an air blasting equipment unnecessary by adding a branch pipe to an intake pipe extending from a turbocharger to an intake manifold, and then providing the branch pipe with the air blasting equipment, which performs the air blasting into a heat exchanger by virtue of the intake air. CONSTITUTION:The outside air is introduced through an air cleaner 17 by means of a blower 6 into an intake pipe 8. And then, a part of the outside air is discharged through an intake manifold 3, a connecting section 9, an engine 2, a connecting section 10, an exhaust manifold 4 and a turbine 7 in order. While, the remaining outside air is discharged through a branch pipe 21 and a tip fan 19 as an air blasting equipment in order. And further, the reflux exhaust gas is sent back through the exhaust manifold 4, an EGR valve 15 and a heat exchanger 20 to the intake manifold 3 so that it is mixed with the intake air. Hereupon, the tip fan 19 is rotated by using the intake air discharged through the branch pipe 21 so as to send the cooling air through a blast pipe 22 to the heat exchanger 20. |
