EXHAUST GAS FLOW CONTROL APPARATUS

摘要

PROBLEM TO BE SOLVED: To provide an exhaust gas flow control apparatus capable of surely and effectively performing control by an exhaust flow without increasing the machining accuracy of a member. SOLUTION: The exhaust gas flow control apparatus comprises: a control valve 40 arranged to an exhaust pipe of an engine 1; a fuel injection valve 6 that can supply additional fuel in the exhaust pipe 20 to increase an exhaust gas temperature; an exhaust manifold 12 and the exhaust pipe 20 constituted of double pipelines; an ECU 60 that makes the control valve 40 operate to meet requirements for increasing an exhaust temperature. When the control valve 40 makes a cross sectional area of the exhaust pipe 20 be a minimum, exhaust pressure is increased within a range of 266 hPa to 800 hPa.