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    • 81. 发明申请
    • MULTI-SEGMENT TURBOCHARGER BEARING HOUSING AND METHODS THEREFOR
    • 多部分涡轮增压器轴承座及其方法
    • WO2013122857A1
    • 2013-08-22
    • PCT/US2013/025518
    • 2013-02-11
    • BORGWARNER INC.
    • DATE, AaronCAVAGNARO, AugustineBUCKING, Michael
    • F02B39/00F01D25/16F01D25/18
    • F04D29/056F01D25/16F01D25/162F01D25/18F01D25/243F04D25/045F04D29/063F04D29/403F05D2220/40F05D2220/76Y10T29/49325
    • A turbocharger (102, 202, 302) including a rotating assembly (114, 214, 314) having a compressor wheel (120, 220, 320) and a turbine wheel (110, 210, 310) mounted on opposite ends of a shaft (112, 212, 312). A bearing housing (160, 260, 360) supports the rotating assembly (114, 214, 314) and comprises at least two segments (189, 190; 289, 290; 389, 390). Each segment (189, 190; 289, 290; 389, 390) has an opening large enough to radially receive the rotating assembly (114, 214, 314). The bearing housing segments (189, 190; 289, 290; 389, 390) are fastened (193) together and a flexible seal may be provided between the segments. The bearing housing (160, 260, 360) may house rolling element bearings (325) or journal bearings (149), for example. The bearing housing (160, 260, 360) is split axially (101, 201, 301) into an upper segment (189, 289, 389) and a lower segment (190, 290, 390). Alternatively, the bearing housing (160, 260, 360) is split axially (101, 201, 301) into a left segment and a right segment. The turbocharger (102) may further comprise an electric motor stator (148) disposed in the bearing housing (160). The bearing housing (160) may also include a defined passageway (143) extending around the stator (148) and configured to receive a cooling liquid.
    • 包括具有压缩机叶轮(120,220,320)和安装在轴的相对两端的涡轮机叶轮(110,210,310)的旋转组件(114,214,314)的涡轮增压器(102,202,302) 112,212,312)。 轴承座(160,260,360)支撑旋转组件(114,214,314)并且包括至少两个段(189,190; 289,290; 389,390)。 每个段(189,190; 289,290; 389,390)具有足够大的径向径向接收旋转组件(114,214,314)的开口。 轴承壳体段(189,190; 289,290; 389,390)被紧固(193)在一起,并且可以在段之间提供柔性密封。 例如,轴承壳体(160,260,360)可容纳滚动元件轴承(325)或轴颈轴承(149)。 轴承座(160,260,360)沿轴向(101,201,301)分裂成上段(189,289,389)和下段(190,290,390)。 或者,轴承壳体(160,260,360)被轴向地分开(101,201,301)成左段和右段。 涡轮增压器(102)还可以包括设置在轴承壳体(160)中的电动机定子(148)。 轴承座(160)还可以包括围绕定子(148)延伸并且构造成接纳冷却液体的限定通道(143)。