| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a variable capacity supercharger and a vane shape of a variable nozzle, reducing a pressure loss of the variable nozzle and improving a turbine efficiency by inhibiting formation of a negative pressure section in a leading edge part side of vane back side part, or by relaxing a velocity gradient of nozzle channel. <P>SOLUTION: A vane shape of the variable nozzle is constructed in such a manner that a supply quantity of fluid is adjusted by rotatably arranging a vane 1 having airfoil cross section shape in a fluid supply passage 31 of a radial turbine providing power by supplying a fluid to a moving blade. The vane 1 having the airfoil cross section includes: a convex part formed at a leading edge part 2 side of an antinode side part 5 and; a concave part formed at a trailing edge part 3 side of a back side part 4. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
