| 摘要 |
PURPOSE: A charging device for converting energy is provided to reduce a friction loss by decreasing a dimension and a weight of a support unit in an axial direction. CONSTITUTION: A rotor(34) is rotatably supported in a housing of a charging device. The rotor is connected to a shaft(32) not to rotate. Each wheel rear unit(16,24) is opposite to each compressor wheel inlet(42,50). Two or more compressor wheels(18,26) include each wheel rear unit. The wheel rear units of the compressor wheel are matched with each other. Each opposite force(60,62) is obtained by pressure of each compressor wheel applied to the wheel rear unit. Diameters of the wheel rear units are matched with each other.
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