发明名称 |
Exhaust-gas turbocharger |
摘要 |
In the generic exhaust-gas turbocharger, the turbine-side and compressor-side radial bearing bush are of identical design. A more compact bearing space, and improvements in acoustics and rotor dynamics, are achieved by providing different bearings on the turbine and compressor sides. |
申请公布号 |
US9638059(B2) |
申请公布日期 |
2017.05.02 |
申请号 |
US201113695920 |
申请日期 |
2011.05.09 |
申请人 |
BorgWarner Inc. |
发明人 |
Becker Martin;Seiler André |
分类号 |
F01D25/16;F01D25/18;F16C17/26;F16C17/18;F02B39/00 |
主分类号 |
F01D25/16 |
代理机构 |
Patent Central LLC |
代理人 |
Tucker A. Michael;Pendorf Stephan A.;Patent Central LLC |
主权项 |
1. An exhaust-gas turbocharger (1) having
a compressor (2) comprising a compressor housing; a turbine (3) comprising a turbine housing; a bearing housing (4)
which is connected at one end to the compressor housing and at the other end to the turbine housing, andwhich has an oil supply, and which has an oil collecting chamber (6) at a turbine-side end (5) andwhich has a bearing arrangement (7) for a rotor shaft (8), which bearing arrangement comprises:
turbine-side and compressor-side receiving bores (9″, 10″),a compressor-side bearing bush (9) with a radially inner bearing surface forming a gap with the rotor shaft (8) and a radially outer circumferential surface facing the compressor-side receiving bore (9″), anda turbine-side bearing bush (10) which is spaced apart axially from the compressor-side bearing bush (9) and which has a radially inner bearing surface (11) forming a gap with the rotor shaft (8) and a radially outer circumferential surface (12) facing the turbine-side receiving bore (10″),wherein
the inner axial bearing surface width of the compressor-side bearing bush (9) differs from the inner axial bearing surface width of the turbine-side bearing bush (10), the outer axial bearing surface width of the compressor-side bearing bush (9) differs from the outer axial bearing surface width of the turbine-side bearing bush (10) or the inner axial bearing surface width of the compressor-side bearing bush (9) differs from the inner axial bearing surface width of the turbine-side bearing bush (10) and the outer axial bearing surface width of the compressor-side bearing bush (9) differs from the outer axial bearing surface width of the turbine-side bearing bush (10). |
地址 |
Auburn Hills MI US |