VARIABLE NOZZLE UNIT AND VARIABLE DISPLACEMENT SUPERCHARGER

摘要

PROBLEM TO BE SOLVED: To sufficiently reduce slide abrasion between the inner peripheral inner surface of a drive ring 73 and the outer peripheral surface of a guide ring 69 to improve durability of a variable displacement supercharger 1.SOLUTION: Three or more fitting pins 65 are arranged on the right side surface of a nozzle ring 49 at intervals in a circumferential direction. Each fitting pin 65 is positioned radially outside with respect to a support hole 53 of the nozzle ring 49. A guide ring 69 is provided over the right side surfaces of the plurality of fitting pins 65. A first side guide member 89 slidably supporting the right side surface of a drive ring 73 on the right side of the guide ring 69 is provided, and a second side guide member 93 slidably supporting the left side surface of the drive ring 73 on the left side of the guide ring 69 is provided.