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公开(公告)号：US09435347B2
公开(公告)日：2016-09-06
申请号：US13820308
申请日：2011-08-31
IPC分类号： F04D29/047 , F02K9/46 , F04D7/02 , F04D13/04 , F04D29/049
CPC分类号： F04D29/047 , F02K9/46 , F04D7/02 , F04D13/04 , F04D29/049 , F16C21/00 , F16C2360/24
摘要： A turbopump for feeding a low-thrust rocket engine comprises a pump, a turbine, and a common rotary shaft connected to the pump and to the turbine. First and second bearings closer respectively to the pump and to the turbine serve to support the common shaft. The second bearing is a hydrodynamic bearing connected to a gas supply source, and the turbopump also includes at least one dynamic sealing gasket around the shaft and interposed between the first and second bearings.
摘要翻译： 用于供给低推力火箭发动机的涡轮泵包括泵，涡轮机和连接到泵和涡轮机的公共旋转轴。 分别靠近泵和涡轮的第一和第二轴承用于支撑公共轴。 第二轴承是连接到气体供应源的流体动力轴承，并且涡轮泵还包括围绕轴并且介于第一和第二轴承之间的至少一个动态密封垫圈。
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公开(公告)号：US20090311089A1
公开(公告)日：2009-12-17
申请号：US12485304
申请日：2009-06-16
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 radial positioning means ensuring that the rotor is radially position; 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 means serving to balance the rotor axially at low speed, and without contact at high speed. In addition, the radial positioning means are hydrostatic bearings, the turbomachine including hydrostatic bearing feed circuits suitable for connecting said 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，包括确保转子处于径向位置的径向定位装置; 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，其用于以低速度轴向平衡转子，并且高速接触。 此外，径向定位装置是静压轴承，涡轮机包括适于将所述轴承连接到压力下的流体源的静压轴承进给回路。 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：US07686572B2
公开(公告)日：2010-03-30
申请号：US11580159
申请日：2006-10-13
IPC分类号： F04D29/041 , F04D29/042
CPC分类号： F04D29/0416 , F04D29/167 , F04D29/2266 , F04D29/2277
摘要： A pump for the drawing-in of a fluid, including at least one centrifugal wheel having a fluid inlet edge and a fluid outlet edge, the pump further including an axial balancing system with a high-pressure flow space defined between the housing and an upstream face of the centrifugal wheel. The axial balancing system further includes a device for substantially increasing the hydrostatic pressure of the fluid circulating in the high-pressure flow space during operation of the pump.
摘要翻译： 一种用于吸入流体的泵，包括具有流体入口边缘和流体出口边缘的至少一个离心轮，所述泵还包括轴向平衡系统，所述轴向平衡系统具有限定在所述壳体和上游之间的高压流动空间 离心轮面。 轴向平衡系统还包括用于在泵的操作期间基本上增加在高压流动空间中循环的流体的静水压力的装置。
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公开(公告)号：US20080080965A1
公开(公告)日：2008-04-03
申请号：US11580159
申请日：2006-10-13
IPC分类号： F04D3/02
CPC分类号： F04D29/0416 , F04D29/167 , F04D29/2266 , F04D29/2277
摘要： The invention relates to a pump (10) for the drawing-in of a fluid, comprising at least one centrifugal wheel (14) having a fluid inlet edge (48) and a fluid outlet edge (44), the pump further comprising an axial balancing system (32) comprising a high-pressure flow space (34) defined between the housing and an upstream face (36) of the centrifugal wheel (14).The invention is characterised by the fact that the axial balancing system (32) further comprises means (52) for substantially increasing the hydrostatic pressure of the fluid circulating in the high-pressure flow space (34) during operation of the pump (10).
摘要翻译： 本发明涉及一种用于引入流体的泵（10），其包括具有流体入口边缘（48）和流体出口边缘（44）的至少一个离心轮（14），所述泵还包括轴向 平衡系统（32）包括限定在所述壳体和所述离心轮（14）的上游面（36）之间的高压流动空间（34）。 本发明的特征在于轴向平衡系统（32）还包括用于在泵（10）的操作期间基本上增加在高压流动空间（34）中循环的流体的静水压力的装置（52）。
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公开(公告)号：US20130227931A1
公开(公告)日：2013-09-05
申请号：US13820308
申请日：2011-08-31
IPC分类号： F04D29/047
CPC分类号： F04D29/047 , F02K9/46 , F04D7/02 , F04D13/04 , F04D29/049 , F16C21/00 , F16C2360/24
摘要： A turbopump for feeding a low-thrust rocket engine comprises a pump, a turbine, and a common rotary shaft connected to the pump and to the turbine. First and second bearings closer respectively to the pump and to the turbine serve to support the common shaft. The second bearing is a hydrodynamic bearing connected to a gas supply source, and the turbopump also includes at least one dynamic sealing gasket around the shaft and interposed between the first and second bearings.
摘要翻译： 用于供给低推力火箭发动机的涡轮泵包括泵，涡轮机和连接到泵和涡轮机的公共旋转轴。 分别靠近泵和涡轮的第一和第二轴承用于支撑公共轴。 第二轴承是连接到气体供应源的流体动力轴承，并且涡轮泵还包括围绕轴并且介于第一和第二轴承之间的至少一个动态密封垫圈。
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公开(公告)号：US20080267763A1
公开(公告)日：2008-10-30
申请号：US11811638
申请日：2007-06-11
申请人： Fabien Wahl , Laurent Fabbri , Francois Danguy
发明人： Fabien Wahl , Laurent Fabbri , Francois Danguy
IPC分类号： F03B15/06
CPC分类号： F04D29/582 , F04D29/0416
摘要： The invention relates to a rotary machine for passing a main liquid stream, the machine comprising: a shaft mounted to rotate relative to a casing of the rotary machine; and an active axial balancing system suitable for exerting a first axial take-up force on the shaft. The invention further comprising a circuit for a secondary liquid stream taken from the main liquid stream, and a passive axial balancing system suitable for exerting a second axial take-up force on the shaft, said passive axial balancing system being fed by the circuit for the secondary liquid stream.
摘要翻译： 本发明涉及一种用于使主液流通过的旋转机，该机器包括：安装成相对于旋转机器的壳体旋转的轴; 以及适于在轴上施加第一轴向卷取力的主动轴向平衡系统。 本发明还包括一个从主液体流中取出的二次液流的回路，以及适用于在轴上施加第二轴向吸收力的被动轴向平衡系统，所述被动轴向平衡系统由电路 二次液流。
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公开(公告)号：US20120051885A1
公开(公告)日：2012-03-01
申请号：US13319390
申请日：2010-05-07
IPC分类号： F01D3/02
CPC分类号： F04D29/445 , F04D29/0416 , F04D29/2211 , F04D29/426
摘要： The invention relates to a centrifugal pump. The pump (10) comprises an impeller (20) and a casing (50) surrounding the impeller, the impeller having a main passage (24) that divides into a first passage (241) and a second passage (242) with a common feed inlet (22) parallel to the axis of rotation (A) of the pump, the common feed inlet (22) being the inlet of the main passage (24), the first passage (241) having a first outlet (243) that is radially oriented, opening out at a first diameter relative to the axis of rotation (A) and suitable for supplying fluid at a first pressure, and the second passage (242) having a second outlet (244) that is oriented radially and situated behind the first outlet (243), opening out at a second diameter that is greater than the first diameter, the second outlet (244) being suitable for supplying the fluid at a second pressure that is higher than the first pressure, the impeller (20) co-operating with the casing (50) to form an axial balancing system having a chamber (90) formed between the rear face (27) of the impeller and the portion (57) of the casing that faces the rear face (27), the inlet to the chamber (90) being situated at the level of the second outlet (244).
摘要翻译： 本发明涉及离心泵。 所述泵（10）包括叶轮（20）和围绕所述叶轮的壳体（50），所述叶轮具有主通道（24），所述主通道（24）分为第一通道（241）和第二通道（242） 入口（22）平行于泵的旋转轴线（A），公共进料口（22）是主通道（24）的入口，第一通道（241）具有第一出口（243） 径向定向，相对于旋转轴线（A）在第一直径处开口，并且适于在第一压力下供应流体，并且第二通道（242）具有径向定位在第二出口 第一出口（243），其在大于第一直径的第二直径处开口，第二出口（244）适于在高于第一压力的第二压力下供应流体，叶轮（20） 与所述壳体（50）一起操作以形成具有形成在所述后部之间的室（90）的轴向平衡系统 叶轮的表面（27）和壳体的面向后表面（27）的部分（57），腔室（90）的入口位于第二出口（244）的水平处。
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公开(公告)号：US20080080988A1
公开(公告)日：2008-04-03
申请号：US11580160
申请日：2006-10-13
申请人： Fabien Wahl , Francois Danguy , Patrice Fayolle , Jean-Yann Luend
发明人： Fabien Wahl , Francois Danguy , Patrice Fayolle , Jean-Yann Luend
IPC分类号： F04B17/00
CPC分类号： F04D29/0416 , F04D13/0653 , F04D29/588
摘要： Pump with electric motor, immersed in the fluid to be pumped Circuits for the auxiliary circulation of fluid in the pump for the axial balancing and the cooling of specific portions of the pump. The pump comprises a centrifugal region (28) with a fluid axial balancing system (60) and the supply circuit of this balancing system is independent of the or each fluid cooling circuit (90, 50, 48, 52, 86) of specific elements of the pump such as the motor (16) and/or a rolling bearing (38).
摘要翻译： 带电动机的泵，浸在要泵送的流体中，用于辅助循环泵中的流体用于轴向平衡和泵的特定部分的冷却。 该泵包括具有流体轴向平衡系统（60）的离心区域（28），并且该平衡系统的供应回路独立于该或每个流体冷却回路（90,50,58,52,86）的特定元件 诸如电动机（16）和/或滚动轴承（38）的泵。
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公开(公告)号：US20060222523A1
公开(公告)日：2006-10-05
申请号：US11305367
申请日：2005-12-16
IPC分类号： F04B53/00
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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