ENGINE THAT EQUIPPS WITH TURBO CHARGER

摘要

PURPOSE: An engine equipped with a turbocharger is provided to reduce noise and vibration generated in a compressor by opening a first control valve for tip-out. CONSTITUTION: An engine equipped with a turbocharger comprises a first bypass line(140), and a first control valve(V1) and a controller. The first by-pass line is branched from intake lines(100a,100b) locating between a compressor(125) and a throttle valve(190). The first by-pass line is connected to the front intake line of the compressor. The first control valve is installed on the first bypass line and opens and closes the first bypass line. The controller selectively supplies positive pressure or negative pressure to the first control valve. The controller controls the pressure for opening the first control valve.