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    • 4. 发明专利
    • Bearing device for turbocharger
    • 涡轮增压器轴承装置
    • JP2013011331A
    • 2013-01-17
    • JP2011145797
    • 2011-06-30
    • Mitsubishi Heavy Ind Ltd三菱重工業株式会社
    • NISHIDA HIDEAKI
    • F16C17/18F02B39/00F02B39/14
    • F01D25/16F01D25/166F01D25/18F01D25/22F02B39/14F02M55/00F05D2220/40F05D2240/54F05D2250/61F16C17/02F16C17/18F16C17/26F16C27/02F16C33/043F16C33/1065F16C2202/54F16C2206/04F16C2240/40F16C2360/24
    • PROBLEM TO BE SOLVED: To improve oscillation stability when a turbine rotor revolves at a high speed, reduce the number of parts, and facilitate processing and assemblability in a first floating bush bearing disposed on a compressor housing side and a second floating bush bearing disposed on a turbine housing side.SOLUTION: The bearing device for a turbocharger has a bearing housing 13 for a turbocharger 1, a rotor shaft 16 that passes through the bearing housing 13, a first floating bush bearing 17 interposed between the bearing housing 13 and the rotor shaft 16 and disposed on a compressor housing 12 side and comprising a first floating bush, and a second floating bush bearing 18 that has the same shape as the first floating bush bearing 17 and is disposed on a turbine housing 11 side and comprises a second floating bush 20. The bearing device for the turbocharger is also characterized in that the inner bearing width Li of the first and second floating bushes is formed to be smaller than the outer bearing width Lo by the same proportion in both bushes.
    • 要解决的问题:为了提高涡轮转子高速旋转时的振动稳定性,减少部件数量,并且便于在设置在压缩机壳体侧的第一浮动衬套轴承和第二浮动衬套中的加工和组装 轴承设置在涡轮机壳体侧。 解决方案:用于涡轮增压器的轴承装置具有用于涡轮增压器1的轴承壳体13,通过轴承壳体13的转子轴16,插入在轴承壳体13和转子轴16之间的第一浮动衬套轴承17 并且设置在压缩机壳体12侧并且包括第一浮动衬套和第二浮动衬套轴承18,第二浮动衬套轴承18具有与第一浮动衬套轴承17相同的形状并且设置在涡轮机壳体11侧并且包括第二浮动衬套20 用于涡轮增压器的轴承装置的特征还在于,第一和第二浮动衬套的内部轴承宽度Li在两个衬套中以相同的比例形成为小于外部轴承宽度Lo。 版权所有(C)2013,JPO&INPIT