| 摘要 |
<p>PURPOSE:To increase intake air quantity in the extremely low speed area and reduce black smoke by making the intake passage of a turbo supercharged engine be 2 systems and providing an inter cooler to each intake passage. CONSTITUTION:In an L type 6 cylinder turbo supercharged engine 10, an intake manifold 15 comprises the first manifold 15a, each intake process of which cylinder does not overlap each other, and the second manifold 15b. Inter coolers 31 and 32 and intake pipes 16 and 17 are connected to the discharge pipes 18 and 19, which branches from the discharge port of a compressor 12b. Since intake pipes are made 2 systems, and the inter coolers 31 and 32 are provided in the respective intake passages, extremely high intake cooling performance can be obtained. Since each length of the intake pipes contributing to inertia supercharging reaches each cylinder, the resonant position can be shifted to the extremely low speed area as an inertia effect. Therefore, the torque in the low speed area can be improved, and in addition, the black smoke of exhaust gas can be reduced.</p> |
