| 摘要 |
PURPOSE:To prevent vibration and noise of rotary shaft by fixing a bal anceweight constituted of a rotary symmetrical body between the piston and bearing of an enclosed rotary compressor. CONSTITUTION:A balanceweight 37 constituted of a rotary symmetrical body is formed at the opposite sides of the piston 35 of an enclosed rotary compressor between the bearings 40, 41 where the facing sides of said balanceweight are also facing against a compression chamber R. Since bearing function of balanceweight is exhibited in addition to the balancing function, the rotary shaft is born reliably while noise of compressor is prevented.
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