| 摘要 |
PURPOSE:To recover a most part of pump loss of an engine by transmitting power from a supercharger to the engine. CONSTITUTION:In low load, particularly very low load of an engine 1, a switch valve 8 is fully closed. Intake from an intake side path 9 flows into a operative chamber 6 from intake side paths 7 and 14 through a connection 12, a communicating portion 11 and an intake side path 13. After the flow of intake to the operative chamber 6 is interrupted, intake in the operative chamber 6 expands adiabatically, while being compressed again adiabatically. When the intake becomes approximately equal to the discharge side pressure in a supercharger 2, i.e. pressure (negative pressure) in the discharge side path 15, a check valve 17 is opened to discharge the intake to the discharge side paths 15, 16 and supply it to the engine. |
