| 摘要 |
PURPOSE: A shutter is controlled by a solenoid valve by different opening control using negative pressure to perform a precise control. CONSTITUTION: An exhaust gas recirculation device comprises a distributor(30) and a controller(20). The distributor controls a first and second shutter(70,80) with a solenoid which is installed in both ends of a bypass line(90). The bypass line circulates exhaust gas to an inlet intake(5) by connecting the inlet and outlet intakes(5,7). A vacuum pump(40) transmits vacuum pressure to the distributor through a supply line(50). The controller is connected to the distributor by a signal line(60) sending control signal. A pedal signal of a driver, an rpm signal, an opening degree signal of a flow detector(10) are received by the controller. The first shutter opens in a larger negative pressure than the second shutter.
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