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公开(公告)号：US08333548B2
公开(公告)日：2012-12-18
申请号：US12485304
申请日：2009-06-16
IPC分类号： F01D3/00
CPC分类号： F03B13/10 , F03B11/06 , F03B11/063 , F04D29/042 , F04D29/052 , F05B2240/53 , F16C21/00 , F16C32/064 , F16C39/02 , F16C2360/00 , F16C2380/26 , Y02E10/22 , Y02E10/223 , Y02E10/226
摘要： A turbomachine arranged with a rotor and a stator, including a radial positioning device ensuring that the rotor is radially positioned; and a contactless axial balancing device arranged on at least one bladed wheel for axially balancing the rotor at high speed. The turbomachine includes a thrust bearing distinct from the radial positioning device serving to balance the rotor axially at low speed, and without contact at high speed. In addition, the radial positioning device is constituted by hydrostatic bearings, the turbomachine including hydrostatic bearing feed circuits suitable for connecting the bearings to a source of fluid under pressure. As a result, it is possible to obtain operation at high speeds with a very long lifetime.
摘要翻译： 具有转子和定子的涡轮机，包括确保转子径向定位的径向定位装置; 以及布置在至少一个叶片轮上的非接触式轴向平衡装置，用于高速轴向平衡转子。 涡轮机包括不同于径向定位装置的止推轴承，其用于以低速轴向轴向平衡转子，并且高速接触。 此外，径向定位装置由静压轴承构成，涡轮机包括适于将轴承连接到压力流体源的静压轴承进料回路。 结果，可以在很长的使用寿命的高速下获得操作。
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公开(公告)号：US07406830B2
公开(公告)日：2008-08-05
申请号：US11305367
申请日：2005-12-16
CPC分类号： F17C7/04 , F17C2221/033 , F17C2223/0161 , F17C2223/033 , F17C2225/0123 , F17C2225/036 , F17C2227/0142 , F17C2227/0157 , F17C2227/0316 , F17C2227/0393 , F17C2260/046 , F17C2265/05 , F17C2265/068 , F17C2270/0136 , Y02E20/14
摘要： The compressor-evaporator system for liquefied gas contained in a tank comprises, in addition to a deice for evaporation by heat exchange with a liquid and devices for conditioning and transferring gas to a pipeline, a motor-driven turbopump comprising a rotary assembly of high bending stiffness on a common shaft line, with at least one high pressure pump, a turbine, and a central electrical machine capable of being used in motor mode or in generator mode. The rotary assembly of the motor-driven turbopump is adapted to present a high speed of rotation, greater than 12,000 rpm, while remaining outside ranges for exciting critical speeds in rotation. All of the internal portions of the motor-driven turbopump are immersed in a cryogenic fluid that is the same as the liquefied gas contained in the tank. The internal cavities of the motor-driven turbopump that are under different thermodynamic conditions are separated by contactless dynamic seals. Electronic power circuits connected to an electricity network control the central electrical machine in motor mode or generator mode.
摘要翻译： 包含在罐中的用于液化气体的压缩机 - 蒸发器系统除了用于与液体进行热交换的蒸发用壳体和用于调节和将气体转移到管道的装置之外，还包括马达驱动的涡轮泵，其包括高弯曲的旋转组件 具有至少一个高压泵，涡轮机和能够用于电动机模式或发电机模式的中央电机的公共轴线上的刚度。 马达驱动的涡轮泵的旋转组件适于呈现大于12,000rpm的高转速旋转，同时保持旋转临界速度的外部范围。 马达驱动的涡轮泵的所有内部部分浸入与罐中所含的液化气体相同的低温流体。 在不同热力学条件下的电动涡轮泵的内部空腔由非接触式动态密封件分开。 连接到电力网络的电力电路以电机模式或发电机模式控制中央电机。
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