| 摘要 |
PURPOSE: An intake air control device of turbo charger engine is provided to induce boost pressure and intake air, which are generated in an intake manifold by the rotation of turbine due to exhaust gas, to flow to the air outlet of air cleaner by using the electric signal of electric control unit (ECU), thereby optimizing the efficiency of engine. CONSTITUTION: An intake air control device of turbo charger engine includes a combustion chamber (110), an intake manifold (120), a bypass pipe (121), an exhaust manifold (130), a turbo charger (140), and an ECU (160). The intake manifold is communicated with an inlet valve (111) of the combustion chamber, and supplies mixing gas. The bypass pipe is connected to a supply pipe (152) which is communicated with the intake manifold, and to which external air is supplied. The exhaust manifold is communicated with an exhaust valve (112) of combustion chamber, and discharges the exhaust gas combusted in the combustion gas. The turbocharger includes an intake fan (142), an exhaust turbine (143), a driving shaft (141), and a compressor (144). If the exhaust turbine is rotated by the exhaust gas discharged to the exhaust manifold, the intake fan, which is connected with the exhaust turbine by the driving shaft, is rotated and the compressor compresses the intake air by the rotation of intake fan. The ECU is connected to the bypass pipe, and outputs the electric control signal for opening and closing a bypass pipe passage.
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