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1. 发明授权

US06276124B1 Bi-metallic tie-bolt for microturbine power generating system 失效
标题翻译：微型涡轮发电系统的双金属连接螺栓
公开(公告)号：US06276124B1
公开(公告)日：2001-08-21
申请号：US09090795
申请日：1998-06-04
申请人： Jemeng Soh , Robert Chen , Steve Kuei
发明人： Jemeng Soh , Robert Chen , Steve Kuei
IPC分类号： F02C300
CPC分类号： F01D5/066 , F01D5/026 , F01D15/10 , F02C3/09
摘要： A microturbine power generation system includes an electrical generator, a turbine and a compressor intermediate the generator and the turbine. Rotating components of the turbine, compressor and electrical generator are secured together by a tie-bolt. The tie-bolt is pre-stressed such that faces of the rotating components of the turbine, electrical generator and compressor maintain contact during high-speed, high-temperature operation of the system. The tie-bolt includes a thermally less conductive short portion that is secured to the rotating component of the turbine wheel, and an elongated portion that extends through the rotating components of the compressor and electrical generator. The short, thermally less conductive portion of the tie-bolt inhibits heat from propagating from the turbine end towards the compressor. The short, thermally less conductive portion can be a titanium rod that is inertia-welded between the elongated portion of the tie-bolt and the rotating component of the turbine.
摘要翻译：微型涡轮机发电系统包括在发电机和涡轮机之间的发电机，涡轮机和压缩机。涡轮机，压缩机和发电机的旋转部件通过连接螺栓固定在一起。连接螺栓是预应力的，使得涡轮机，发电机和压缩机的旋转部件的表面在系统的高速，高温操作期间保持接触。连接螺栓包括固定到涡轮机叶轮的旋转部件的热导电短路部分和延伸穿过压缩机和发电机的旋转部件的细长部分。连接螺栓的较短导热部分阻止热量从涡轮机端向压缩机传播。短导热部分可以是在连接螺栓的细长部分和涡轮机的旋转部件之间惯性焊接的钛棒。

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