公开(公告)号：US09109606B2

公开(公告)日：2015-08-18

申请号：US13143616

申请日：2010-01-08

申请人： Sébastien Boufflert ,  Nicolas Juhel ,  Patrice Fayolle ,  Stéphane Laffite

发明人： Sébastien Boufflert ,  Nicolas Juhel ,  Patrice Fayolle ,  Stéphane Laffite

IPC分类号： F04D29/042 ,  F04D29/22

CPC分类号： F04D29/042 ,  F04D29/2266

摘要： The pump includes a stator and a rotor having an impeller in which a fluid duct passes. An axial balancing device arranged on this wheel includes a rear balancing chamber and a passage arranged between the wheel and the stator, enabling evacuation of fluid from the fluid duct to the balancing chamber. The pressure of fluid in the balancing chamber compensates the pressures exerted by the fluid on the rest of the rotor allowing axial balancing of the rotor. The passage includes an upstream nozzle and a downstream nozzle, as well as an intermediate annular chamber, arranged between walls of the wheel and of the stator, the intermediate chamber being arranged downstream of the upstream nozzle and upstream of the downstream nozzle.

摘要翻译： 泵包括定子和具有流体管道通过的叶轮的转子。 布置在该轮上的轴向平衡装置包括后平衡室和布置在车轮和定子之间的通道，能够将流体从流体管道排出到平衡室。 平衡室中的流体压力补偿流体施加在转子的其余部分上的压力，允许转子轴向平衡。 通道包括上游喷嘴和下游喷嘴以及设置在车轮的壁和定子之间的中间环形室，中间室设置在上游喷嘴的下游和下游喷嘴的上游。

公开(公告)号：US20120148384A1

公开(公告)日：2012-06-14

申请号：US13143616

申请日：2010-01-08

申请人： Sébastien Boufflert ,  Nicolas Juhel ,  Patrice Fayolle ,  Stéphane Laffite

发明人： Sébastien Boufflert ,  Nicolas Juhel ,  Patrice Fayolle ,  Stéphane Laffite

IPC分类号： F04D29/66

CPC分类号： F04D29/042 ,  F04D29/2266

摘要： The pump comprises a stator (112) and a rotor comprising a impeller in which a fluid duct (114) passes. An axial balancing device arranged on this wheel (111) comprises a rear balancing chamber (118) and a passage (120) arranged between the wheel (111) and the stator (112), enabling evacuation of fluid from the fluid duct (114) to the balancing chamber (118).The pressure of fluid in the balancing chamber (118) compensates the pressures exerted by the fluid on the rest of the rotor (111) allowing axial balancing of the rotor.The passage (120) comprises an upstream nozzle (140) and a downstream nozzle (160), as well as an intermediate annular chamber (150), arranged between walls (151, 152; 141, 142; 161, 162) of the wheel (111) and of the stator (112), the intermediate chamber being arranged downstream of the upstream nozzle (140) and upstream of the downstream nozzle (160).

摘要翻译： 泵包括定子（112）和包括流体管道（114）通过的叶轮的转子。 布置在该轮（111）上的轴向平衡装置包括后平衡室（118）和布置在轮（111）和定子（112）之间的通道（120），能够从流体管道（114）排出流体， 到平衡室（118）。 平衡室（118）中的流体的压力补偿由流体施加在转子（111）的其余部分上的压力，允许转子的轴向平衡。 所述通道（120）包括上游喷嘴（140）和下游喷嘴（160），以及设置在所述车轮的壁（151,152; 141,142; 161,162）之间的中间环形室（150） （111）和所述定子（112）之间，所述中间室设置在所述上​​游喷嘴（140）的下游和所述下游喷嘴（160）的上游。