| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To improve efficiency in a supercharger, by realizing a nozzle vane support structure for reducing loss without hindering the flow of exhaust gas. <P>SOLUTION: This support structure of a nozzle vane 41 has a blade part 51, shaft parts 52 and 53 respectively projected on both end surfaces orthogonal to a fluid guide surface of the blade part 51 and constituting a rotary shaft of the blade part 51 in a pair, and collar parts 54 and 55 arranged around the root of the shaft parts and having a diameter larger than the shaft parts, and is mutually arranged in a plurality at a predetermined interval around a turbine impeller 11, by being rotatably supported by frame bodies, by inserting the shaft parts into holes 61 and 62 possessed by the frame bodies 42 and 43 fixed in a housing 21 covering the turbine impeller 11. The frame bodies 42 and 43 have recess parts 63 and 64 formed in the substantially same diameter as the diameter of the collar parts 54 and 55, in the substantially same depth as the thickness of the collar parts 54 and 55 around the holes 61 and 62. The collar parts 54 and 55 of the nozzle vane 41 are arranged in the recess parts 63 and 64. <P>COPYRIGHT: (C)2008,JPO&INPIT</p> |
