| 摘要 |
PROBLEM TO BE SOLVED: To provide a thrust force balance mechanism of an exhaust gas turbine supercharger capable of reducing thrust force to work on the side of a compressor without using a thrust force balance pipe, reducing restraint against thermal deformation, reducing cost and improving maintainability. SOLUTION: Exhaust gas G passing through between a disc 8 and a gas packing ring 11 is introduced to an outlet passage 9 through a gas bleeding passage including gas bleeding holes 18, 19, a gas bleeding pipe 20 and a ventilating hole 22 and discharged by furnishing a gas packing ring 11, a gas packing ring support 13 and a nozzle blade 14 arranged on the upstream side of the turbine disc 8, providing the gas bleeding holes 18, 19 on the gas packing ring 11 and the gas packing ring support 13, arranging the gas bleeding pipe 20 between the nozzle blades 14 and providing the ventilating hole 22 to communicate the gas bleeding pipe 20 and the gas outlet passage 9 to each other on a gas outlet easing 6.
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