| 摘要 |
The invention relates to an exhaust-gas turbocharger for an internal combustion engine, having a housing (2) and having a rotor (6), wherein the housing (2) has an air guiding section (3) through which flow can pass, an exhaust-gas guiding section (4) through which flow can pass, and a bearing section (5), and the rotor (6) comprises a compressor wheel (7) for sucking in and compressing air, a turbine wheel (8) for expanding exhaust gas, and a shaft (9) for rotationally fixedly connecting the compressor wheel (7) to the turbine wheel (8), wherein the compressor wheel (7) is arranged so as to be rotatable in the air guiding section (3), and the turbine wheel (8) is positioned so as to be rotatable in the exhaust-gas guiding section (4), and the shaft (9) is rotatably mounted in the bearing section (5). According to the invention, a ratio M of a first mass (mVer) of the compressor wheel (7) and a second mass (mTur) of the turbine wheel (8) follows the function M = mVer/mTur, wherein the ratio M lies in the following value range: 0.8 < M < 1.2. The invention is used predominantly in utility vehicle construction in internal combustion engines with a large swept volume. |
