| 摘要 |
PROBLEM TO BE SOLVED: To supply exhaust gas back into an engine boosting up intake air using exhaust gas which flows out from the engine. SOLUTION: A fluid machine is formed in such a constitution that an impeller 2 having a plurality of blades on an outer peripheral part is housed in a casing 1, a ring shaped fluid passage is formed around the blades, a first partition 3 and a second partition 4 are arranged in a fluid passage, and is divided into two fluid passages. Exhaust gas of an engine is made flow in/out into/from one exhaust gas flow passage 6, and intake air is made flow in/from out into/ from the other intake flow passage 9. It is thus possible to boost up intake air in a good condition along a region where rotating speed of the engine is low to a region where the speed is comparatively high, namely it is possible to realize supercharging of the engine with a mechanical structure of low costs. |
