| 摘要 |
<p>A gas turbine unit (20) has a rotor unit (10) comprising a mono-shaft (30), a compressor wheel (40), a turbine wheel (50), a tie bolt (60), and a tie bolt nut (70). The mono-shaft (30) is essentially cylinder-shaped with a centre through hole for containing the tie bolt (60), and has a first supporting bearing arrangement (100) detachably attached to a first end and a second supporting bearing arrangement (110) detachably attached to a second end. The compressor wheel (40) and the turbine wheel (50) constitute a detachable unit, which is attached by means of the tie bolt (60) at the second end of the mono-shaft (30), forming a shaft overhang, the tie bolt protruding through the centre of the mono-shaft and into the centre of the turbine wheel.</p> |
