公开(公告)号：US20110008153A1

公开(公告)日：2011-01-13

申请号：US12828483

申请日：2010-07-01

申请人： Yuya Kato ,  Shinichi Nemoto ,  Kenji Yamabiraki ,  Katsushi Sato

发明人： Yuya Kato ,  Shinichi Nemoto ,  Kenji Yamabiraki ,  Katsushi Sato

IPC分类号： F04D13/12

CPC分类号： F04D13/06 ,  F04D29/24 ,  F04D29/669

摘要： A drain pump that maintains pump performance and reduces noise and vibration accompanying water scooping of a rotary impeller includes a large-diameter blade divided into an inner blade and an outer blade. A radius of an impeller scooping up water is the sum of the lengths of the inner and outer blades in a radial direction. The large-diameter blade is divided at a position where the amount of generated air bubbles is large, and the inner and outer blades are alternately disposed. Accordingly, air bubbles are escaped to a downstream side in a rotational direction, so that the intensity of the collision between the blades and air bubbles is decreased reducing noise caused by the burst of air bubbles and vibration caused by a collision load of the flow of a gas-liquid mixture.

摘要翻译： 一种排水泵，其保持泵的性能并减少伴随旋转叶轮的舀取的噪音和振动，包括分为内叶片和外叶片的大直径叶片。 撇水的叶轮半径是径向内外刀片长度的总和。 大直径叶片被分割在产生气泡量大的位置，内外叶片交替设置。 因此，气泡向旋转方向的下游侧逸出，从而降低了叶片与气泡之间的碰撞强度，降低了气泡爆裂引起的噪音和由流动的碰撞负荷引起的振动 气液混合物。

公开(公告)号：US08747071B2

公开(公告)日：2014-06-10

申请号：US12828483

申请日：2010-07-01

申请人： Yuya Kato ,  Shinichi Nemoto ,  Kenji Yamabiraki ,  Katsushi Sato

发明人： Yuya Kato ,  Shinichi Nemoto ,  Kenji Yamabiraki ,  Katsushi Sato

IPC分类号： F04D13/12

CPC分类号： F04D13/06 ,  F04D29/24 ,  F04D29/669

摘要： A drain pump that maintains pump performance and reduces noise and vibration accompanying water scooping of a rotary impeller includes a large-diameter blade divided into an inner blade and an outer blade. A radius of an impeller scooping up water is the sum of the lengths of the inner and outer blades in a radial direction. The large-diameter blade is divided at a position where the amount of generated air bubbles is large, and the inner and outer blades are alternately disposed. Accordingly, air bubbles are escaped to a downstream side in a rotational direction, so that the intensity of the collision between the blades and air bubbles is decreased reducing noise caused by the burst of air bubbles and vibration caused by a collision load of the flow of a gas-liquid mixture.

摘要翻译： 一种排水泵，其保持泵的性能并减少伴随旋转叶轮的舀取的噪音和振动，包括分为内叶片和外叶片的大直径叶片。 撇水的叶轮半径是径向内外刀片长度的总和。 大直径叶片被分割在产生气泡量大的位置，内外叶片交替设置。 因此，气泡向旋转方向的下游侧逸出，从而降低了叶片与气泡之间的碰撞强度，降低了气泡爆裂引起的噪音和由流动的碰撞负荷引起的振动 气液混合物。