| 发明名称 |
TURBOCHARGER PURGE SEAL INCLUDING AXISYMMETRIC SUPPLY CAVITY |
| 摘要 |
A turbocharger rotating assembly (125) includes a shaft (20) rotatably supported in a bearing housing (123) via bearings (26, 128), a compressor impeller (18) mounted on the shaft (20), and an oil flinger (122) disposed on the shaft (20) between the bearings (26, 128) and the compressor impeller (18). The turbocharger (100) further includes an insert (134) disposed in the shaft-receiving axial bore (120) so as to surround the oil flinger (122), and a purge seal (160) operatively positioned in an interface (131) between the insert (134) and the oil flinger (122), whereby the purge seal (160) is configured to minimize oil passage from the bearing housing (123) into the interface (131). An annular cavity (150) encircles the radially outward-facing surface (138) of the insert (134), the cavity (150) forming a portion of a fluid path configured to deliver pressurized fluid to the interface (131). |
| 申请公布号 |
US2016160872(A1) |
申请公布日期 |
2016.06.09 |
| 申请号 |
US201414905452 |
申请日期 |
2014.07.18 |
| 申请人 |
BORGWARNER INC. |
发明人 |
KELLY Allan D.;ELLWOOD E. Perry;ASHTON Zachary;RACE Robert T. |
| 分类号 |
F04D29/10;F02B39/14;F02B33/32;F01D11/04 |
主分类号 |
F04D29/10 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A sealing system (110) for a turbocharger (100) that comprises
a bearing housing (123) including an axial bore (120); a rotating assembly (125) including
a shaft (20) having axis of rotation (21), the shaft (20) rotatably supported in the axial bore (120) via bearings (26, 128),a compressor impeller (18) mounted on the shaft (20),an oil flinger (122) disposed on the shaft (20) between the bearings (26, 128) and the compressor impeller (18); and an insert (134) disposed in the axial bore (120) so as to surround the oil flinger (122), the insert (134) defining a radially outward-facing surface (138);the sealing system (110) including
a purge seal (160) operatively positioned in an interface (131) between the insert (134) and the oil flinger (122), the purge seal (160) configured to introduce pressurized fluid into the interface (131), and including an annular cavity (150) encircling the radially outward-facing surface (138) of the insert (134), the cavity (150) forming a portion of a fluid path configured to deliver the pressurized fluid to the interface (131). |
| 地址 |
Auburn Hills MI US |
