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1. 发明申请

US20110008153A1 DRAIN PUMP 有权
标题翻译：排水泵
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。

2. 发明授权

US08747071B2 Drain pump 有权
标题翻译：排水泵
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。

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