| 摘要 |
<P>PROBLEM TO BE SOLVED: To improve heat dissipation and a cooling performance of a cylinder block. <P>SOLUTION: A variable compression ratio internal combustion engine 1 comprises a cylinder block 3 fitted inside a crank case 4 movably in the cylinder axis direction. A new air discharging path 42 is provided for discharging new air to the inside of an internal combustion engine while being oriented to the cylinder block. A new air extracting path 45 is provided for extracting the new air from an intake path. A new air introducing path 46 is provided for introducing new air from a portion other than the intake path. A valve means 48 is provided for adjusting a communication state between the new air discharging path 44 and the new air extracting path 45 and a communication state between the new air discharging path 44 and the new air introducing path 46. <P>COPYRIGHT: (C)2013,JPO&INPIT |
