OIL LABYRINTH AND SUPERCHARGER

摘要

PROBLEM TO BE SOLVED: To inhibit heat of a flue gas from affecting lubrication of a shaft part in an oil labyrinth installed in a supercharger.SOLUTION: An oil labyrinth 110 includes: a first labyrinth seal part 111 fixed to a bearing stand 4 of a supercharger 1 and facing a shaft part 22 of a turbine wheel 21; and a second labyrinth seal part 112 which is installed facing a wheel part 23 of the turbine wheel 21. The oil labyrinth 110 is divided into a first portion 110A including the first labyrinth seal part 111 and a second portion 110B including the second labyrinth seal part 112. The first portion 110A and the second portion 110B are fixed to the bearing stand 4.SELECTED DRAWING: Figure 1