公开(公告)号：US20160053769A1

公开(公告)日：2016-02-25

申请号：US14820675

申请日：2015-08-07

Applicant: Nidec Corporation

Inventor： Junya MIZUKAMI ,  Hideki NISHIMURA ,  Yoshito NISHITANI ,  Michihiro ITO ,  Naohiro NAGASAWA

IPC: F04D29/22 ,  F04D29/42 ,  F04D29/043 ,  F04D1/00 ,  F04D13/06

CPC classification number: F04D29/186 ,  F04D3/00 ,  F04D5/001 ,  F04D11/00 ,  F04D13/0633 ,  F04D29/0476

Abstract: A pump a shaft portion arranged to extend in a vertical direction; a rotor portion arranged to surround an outer circumference of the shaft portion, and including a magnet; and a housing joined to the shaft portion, and arranged to contain the rotor portion. The housing includes a stator arranged opposite to the magnet; a rotor accommodating portion arranged to accommodate the rotor portion; and an inlet and an outlet each of which is arranged to pass through a portion of the rotor accommodating portion. A surface of at least one of the rotor portion, the shaft portion, and the rotor accommodating portion includes at least one first dynamic pressure groove arranged to support rotation of the rotor portion. A surface of at least one of the rotor portion and the rotor accommodating portion includes at least one second dynamic pressure groove arranged to transfer a fluid from the inlet to the outlet. The rotor portion includes a through hole arranged to pass therethrough in an axial direction.

Abstract translation: 泵，轴部，其布置成在垂直方向上延伸; 转子部分，其布置成围绕所述轴部分的外圆周，并且包括磁体; 以及与所述轴部接合的壳体，并且设置成容纳所述转子部。 壳体包括与磁体相对布置的定子; 转子容纳部分，其布置成容纳转子部分; 以及各自设置成通过转子容纳部的一部分的入口和出口。 转子部分，轴部分和转子容纳部分中的至少一个的表面包括布置成支撑转子部分的旋转的至少一个第一动压槽。 转子部分和转子容纳部分中的至少一个的表面包括布置成将流体从入口传送到出口的至少一个第二动压槽。 转子部分包括沿轴向穿过的通孔。

公开(公告)号：US20160053770A1

公开(公告)日：2016-02-25

申请号：US14820678

申请日：2015-08-07

Applicant: Nidec Corporation

Inventor： Junya MIZUKAMI ,  Hideki NISHIMURA ,  Yoshito NISHITANI ,  Michihiro ITO ,  Naohiro NAGASAWA

IPC: F04D29/22 ,  F04D29/42 ,  F04D29/043 ,  F04D1/00 ,  F04D13/06

CPC classification number: F04D29/186 ,  F04D3/00 ,  F04D5/001 ,  F04D11/00 ,  F04D13/0633 ,  F04D29/0476

Abstract: A pump a shaft portion arranged to extend in a vertical direction; a rotor portion arranged to surround an outer circumference of the shaft portion, and including a magnet; and a housing joined to the shaft portion, and arranged to contain the rotor portion. The housing includes a stator arranged opposite to the magnet; a rotor accommodating portion arranged to accommodate the rotor portion; and an inlet and an outlet each of which is arranged to pass through a portion of the rotor accommodating portion. A surface of at least one of the rotor portion, the shaft portion, and the rotor accommodating portion includes at least one first dynamic pressure groove arranged to support rotation of the rotor portion. A surface of at least one of the rotor portion and the rotor accommodating portion includes at least one second dynamic pressure groove arranged to transfer a fluid from the inlet to the outlet.

Abstract translation: 泵，轴部，其布置成在垂直方向上延伸; 转子部分，其布置成围绕所述轴部分的外圆周，并且包括磁体; 以及与所述轴部接合的壳体，并且设置成容纳所述转子部。 壳体包括与磁体相对布置的定子; 转子容纳部分，其布置成容纳转子部分; 以及各自设置成通过转子容纳部的一部分的入口和出口。 转子部分，轴部分和转子容纳部分中的至少一个的表面包括布置成支撑转子部分的旋转的至少一个第一动压槽。 转子部分和转子容纳部分中的至少一个的表面包括布置成将流体从入口传送到出口的至少一个第二动压槽。