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    • 8. 发明申请
    • TURBOCHARGER SHAFT SEAL
    • TURBOCHARGER轴封
    • US20150233299A1
    • 2015-08-20
    • US14425474
    • 2013-09-10
    • BorgWarner Inc.
    • Jason W. Chekansky
    • F02C7/28F01D11/00F16J15/40F02C6/12
    • F02C7/28F01D11/003F01D25/186F02C6/12F05D2220/40F05D2240/55F05D2250/25F05D2250/281F16J15/40
    • A seal (42, 82) for a shaft (22) of a turbocharger (10) to prevent liquid from leaking out of a bearing housing (16). The seal (42, 82) includes a cylindrical body extending between opposite end faces (116, 118) and has a cylindrical bore extending between the opposite end faces (116, 118) for receiving the shaft (22) therethrough. The cylindrical bore defines an inner surface (106) having at least one striation (112) extending in a helical direction about the shaft (22). Rotation of the shaft (22) relative to the seal (42, 82) causes a pumping effect on liquid present between the shaft (22) and the inner surface (106) of the seal (42, 82), thereby causing the liquid to flow back towards the bearing housing (16).
    • 一种用于涡轮增压器(10)的轴(22)的密封件(42,82),用于防止液体从轴承箱(16)泄漏出来。 密封件(42,82)包括在相对端面(116,118)之间延伸的圆柱形本体,并且具有在相对的端面(116,118)之间延伸的圆柱形孔,用于接收穿过其的轴(22)。 圆柱形孔限定内表面(106),其具有围绕轴(22)沿螺旋方向延伸的至少一个条纹(112)。 轴(22)相对于密封件(42,48)的旋转对于存在于轴(22)和密封件(42,82)的内表面(106)之间的液体产生泵送效应,从而使液体 流向轴承壳体(16)。