Rotary type compressor
专利汇可以提供Rotary type compressor专利检索，专利查询，专利分析的服务。并且PURPOSE:To prevent the generation of noise in an audio-frequency region, by a method wherein a closed case is formed with an approximately cylindrical part, having plural axial ribs, which are protruded in the direction of a center in positions, in which a periphery is divided unequally, and extended in succes sion to both ends, and a cup-shaped cover part. CONSTITUTION:Plural axial ribs 24c, which are protruded in the direction of a center in positions, in which a periphery in unequally divided, and extended in succession to both end parts 24a and 24b, are formed in the outer periphery of an approximately cylinder part 24 with which a closed case 23 is formed together with cup-shaped cover parts 25 and 26. Since the periphery is unequally divided by means of the ribs 24c, this constitution prevents vibration due to deformation of the approximately cylindrical part 24 from forming a mode symmetrical about a shaft, and increases the natural frequency thereof, resulting in reduction of the generation of noise in an audio frequency region.，下面是Rotary type compressor专利的具体信息内容。
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