| 摘要 |
A standard bearing unit (1) for different exhaust-gas turbocharger designs (8), having a shaft (2); having a shaft nut (18); having sealing devices (14, 15); having a compressor wheel (3) which is arranged on a first end (4) of the shaft (2); and having a turbine wheel (5) which is arranged on a second end (6) of the shaft (2), wherein the shaft (2) is mounted in a standardized bearing sleeve (7) which has predefined, unchangeable outer dimensions (19, 23) which are independent of the exhaust-gas turbocharger embodiment. |
| 主权项 |
1. A family of turbochargers, comprising
bearing units (1), each bearing unit (1) having
a shaft (2) having a shaft axis;a shaft nut (18);sealing devices (14, 15);a compressor wheel (3) which is arranged on a first end (4) of the shaft (2);a turbine wheel (5) which is arranged on a second end (6) of the shaft (2); anda bearing sleeve (7) in which the shaft (2) is rotatably mounted, the bearing sleeve (7) having generally cylindrical circumferential dimensions, bearing housings (12), each bearing housing defining a bore (20) for receiving one of said bearing units, each bearing housing divided parallel to the shaft axis into a first half (16) and a second half (17), wherein separation of the bearing housing into said first half (16) and second half (17) exposes the bore (20) such that one of said bearing units (1) can be introduced into or removed from said bore (20), wherein each bearing unit (1) in the family of turbochargers has the same circumferential dimensions (19), wherein each bearing housing (12) in the family of turbochargers has bore (20) dimensions complementary to the bearing unit circumferential dimensions (19). |
