| 摘要 |
PROBLEM TO BE SOLVED: To control a supercharging device having an electric supercharger, particularly, a supercharging device having a bypass passage for bypassing the electric supercharger. SOLUTION: This supercharging device for internal combustion engine has a turbo supercharger 1 driven by the exhaust gas of an engine 12 and an electric supercharger 2 set in an intake passage 20 on the downstream side of the compressor 1a of the turbo supercharger 1, and driven by a drive motor 2b. This device has the bypass passage 7 having an inlet provided in the intake passage 20 on the downstream side of the compressor 1a of the turbo supercharger 1 and the upstream side of the electric supercharger 2 and an outlet provided in the intake passage 21 on the downstream side of the electric supercharger 2 to avoid the supercharger 2, and a bypass valve 3 provided in the bypass passage 7. The bypass valve 3 is opened and closed when air is not carried in the bypass passage 7. COPYRIGHT: (C)2004,JPO |
