| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a device for reducing the time to keep a supercharger in a high-speed rotation state for supercharging in view of viscous drag of lubricating oil. <P>SOLUTION: A control device of an internal combustion engine 1 is equipped with a supercharger (a secondary turbo 14) having a ball bearing as its bearing and with a lubrication unit 20 for supplying lubricating oil to the ball bearing. When the supercharger is put in the high-speed rotation state for supercharging, the lubrication unit 20 stops supplying lubricating oil to the ball bearing. The lubrication unit 20 cancels the state of stopping the supply of lubricating oil to the ball bearing after a lubricating oil supply control period started the moment or after the supply of lubricating oil is stopped or suppressed has passed. <P>COPYRIGHT: (C)2010,JPO&INPIT |
