| 摘要 |
The purpose of the present invention is to provide a turbocharging system and a method for operating the turbocharging system such that surging of an auxiliary turbo charger when starting or stopping the auxiliary turbocharger in a state in which the main turbocharger is operating can be prevented, and deterioration in fuel consumption of an internal combustion engine can be minimized. The turbocharging system (1) comprises: a main turbocharger (2); an auxiliary turbocharger (3); an exhaust pipe (L5) through which exhaust gas flows to a turbine (3a); a gas inlet valve (5) that is provided in the exhaust pipe (L5) and that adjusts the flow rate of the exhaust gas; a charging pipe (L8) through which compressed air flows from a compressor (3b) to an intake manifold (12); a check valve (6) that is provided in the charging pipe (L8) and that enters the open state when the air pressure at the outlet of the compressor (3b) is equal to or greater than the pressure at the intake manifold (12); a bypass pipe (L9) connected to the charging pipe (L8) and the exhaust pipe (L5); and a bypass valve (7) that is provided in the bypass pipe (L9) that that adjusts the flow rate of compressed air flowing through the bypass pipe (L9) from the charging pipe (L8) to the exhaust pipe (L5). |
