| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for measuring axial force of a turbine shaft and a supercharger capable of (1) accurately measuring axial force acting on the turbine shaft when a compressor impeller is fixed on the turbine shaft with using a fastener, (2) assembling the supercharger to satisfy desired performances, and (3) reducing individual differences of performances of the supercharger. SOLUTION: This invention relates to a method for measuring axial force acting on the turbine shaft 2 when an insertion part 2b which is formed on one end side of the turbine shaft 2 and has a screw part 2d formed at a tip part is inserted in a compressor impeller 4 and the compressor impeller 4 is pressed and fixed on a receiving surface 2c formed between one end and another end of the turbine shaft 2 by a fastening nut 5 screwed on the screw part 2d. The insertion part 2b is inserted in the compressor impeller 4, pressed and fixed under a condition where strain gauges 6, 7 are provided on a surface of the insertion part 2b beforehand. Axial force is measured based on strain indicated by the strain gauges 6, 7. COPYRIGHT: (C)2009,JPO&INPIT
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