| 摘要 |
PROBLEM TO BE SOLVED: To suppress heat deformation so that a support ring expands the inner peripheral edge part of a variable displacement supercharger, during operation of the variable displacement supercharger.SOLUTION: A plurality of projecting pieces 85 is integrally formed with intervals in a circumferential direction at the inner peripheral edge part of a support ring 81, the support ring 81 is configured so that only the projecting pieces 85 face a turbine scroll flow passage 37, and a heat absorption ring 91 is provided so as to be pressure-welded to the outer peripheral surface of the support ring 81. Consequently, during operation of a variable displacement supercharger 1, a member temperature of the support ring 81 is made low, and heat deformation can be suppressed so that the support ring 81 expands the inner peripheral edge part.SELECTED DRAWING: Figure 5 |
