| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an internal combustion engine for improving fuel-economy performance in either of the case where supercharging performed by an electric supercharger is required and the case where the supercharging is not required. <P>SOLUTION: This internal combustion engine includes: the electric supercharger provided with: an exhaust turbine provided on an exhaust passage; a supercharger connected to the exhaust turbine through a rotary shaft; an electric motor connected to the rotary shaft; and a controller for controlling the electric motor, the electric supercharger being for compressing intake air by rotation of the supercharger caused with rotation of the exhaust turbine by exhaust gas energy to perform supercharging and for rotationally driving the supercharger with electric-motor assistance by the electric motor; an exhaust bypass passage provided to bypass the exhaust turbine; and means for opening and closing the exhaust bypass passage, wherein the means for opening and closing the exhaust bypass passage opens the exhaust bypass passage until the supercharging is started by the electric supercharger. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
