| 摘要 |
PURPOSE:To provide each compact supercharger while improving the responsive property of each supercharger by interposing a mechanical supercharger in a first intake path and an exhaust turbo-supercharger in a second intake path. CONSTITUTION:A bypass valve 19 is closed under the running condition while the low rotation region, and cylinders I, III and V are subjected to supercharging intake by a mechanical supercharger 27 in a first intake path 1A, while cylinders II, IV and VI are subjected to supercharging intake by an exhaust turbo-supercharger 11 in a second intake path 2A. The opening of a bypaass valve 19 is adjusted according to the running condition to control supercharging pressure.
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