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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：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：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：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：US08157502B2
公开(公告)日：2012-04-17
申请号：US12004458
申请日：2007-12-19
IPC分类号： F04D29/04
CPC分类号： F04D29/04 , F16C19/06 , F16C19/54 , F16C25/083 , F16C35/067 , F16C2300/34 , F16C2300/52 , F16C2360/44 , F16C2380/26
摘要： Pump (1) comprising a rotary shaft (30), a bearing housing (80) that is fixed relative to the rotary shaft, at least one rolling bearing (70) the inner ring (71) of which is connected to the said rotary shaft and the outer ring (76) of which is able to slide in this housing along the axis of rotation of the rotary shaft. The bearing housing (80) comprises a shoulder (81) situated on one side of this bearing and able rigidly to prevent translational movement of the outer ring (76) along the axis of rotation, and a deformable elastic device (100) fixed to the housing on the other side of the bearing (70) so that the bearing lies between the shoulder and the elastic device.
摘要翻译： 泵（1）包括旋转轴（30），相对于旋转轴固定的轴承壳体（80），至少一个滚动轴承（70），其内环（71）与所述旋转轴 并且其外环（76）能够沿着旋转轴的旋转轴在该壳体中滑动。 轴承壳体（80）包括位于该轴承的一侧的肩部（81），其能够刚性地防止外圈（76）沿着旋转轴的平移运动，以及可变形的弹性装置（100），其固定到 壳体在轴承（70）的另一侧上，使得轴承位于肩部和弹性装置之间。
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公开(公告)号：US20080170937A1
公开(公告)日：2008-07-17
申请号：US12004458
申请日：2007-12-19
IPC分类号： F04D29/08
CPC分类号： F04D29/04 , F16C19/06 , F16C19/54 , F16C25/083 , F16C35/067 , F16C2300/34 , F16C2300/52 , F16C2360/44 , F16C2380/26
摘要： Pump (1) comprising a rotary shaft (30), a bearing housing (80) that is fixed relative to the rotary shaft, at least one rolling bearing (70) the inner ring (71) of which is connected to the said rotary shaft and the outer ring (76) of which is able to slide in this housing along the axis of rotation of the rotary shaft. The bearing housing (80) comprises a shoulder (81) situated on one side of this bearing and able rigidly to prevent translational movement of the outer ring (76) along the axis of rotation, and a deformable elastic device (100) fixed to the housing on the other side of the bearing (70) so that the bearing lies between the shoulder and the elastic device.
摘要翻译： 泵（1）包括旋转轴（30），相对于旋转轴固定的轴承壳体（80），至少一个滚动轴承（70），其内环（71）与所述旋转轴 并且其外环（76）能够沿着旋转轴的旋转轴在该壳体中滑动。 轴承壳体（80）包括位于该轴承的一侧的肩部（81），其能够刚性地防止外圈（76）沿着旋转轴的平移运动，以及可变形的弹性装置（100），其固定到 壳体在轴承（70）的另一侧上，使得轴承位于肩部和弹性装置之间。
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