发明授权
- 专利标题： Vortex prevention device and double suction vertical pump having such vortex prevention device
- 专利标题（中）： 具有防涡流装置的防涡轮装置和双吸立式泵
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申请号： US13498213申请日： 2010-09-24
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公开(公告)号： US09297385B2公开(公告)日： 2016-03-29
- 发明人: Takashi Yamanaka , Dai Kudo , Shuichiro Honda , Takashi Enomoto
- 申请人： Takashi Yamanaka , Dai Kudo , Shuichiro Honda , Takashi Enomoto
- 申请人地址： JP Tokyo
- 专利权人： EBARA CORPORATION
- 当前专利权人： EBARA CORPORATION
- 当前专利权人地址： JP Tokyo
- 代理机构： Oblon, McClelland, Maier & Neustadt, L.L.P.
- 优先权： JP2009-222142 20090928; JP2010-128609 20100604
- 国际申请： PCT/JP2010/066508 WO 20100924
- 国际公布： WO2011/037166 WO 20110331
- 主分类号： F04D29/00
- IPC分类号： F04D29/00 ; F04D13/08 ; F04D29/42 ; F04D29/54 ; F04D29/70 ; F04D29/44
摘要：
A vortex prevention device is capable of preventing creation of air entrained vortex and also provides a double suction vertical pump having such a vortex prevention device. The vortex prevention device is used in combination with the double suction vertical pump which is installed in an open channel and has an upper suction opening and a lower suction opening. The vortex prevention device includes a plate member as a vortex prevention structure arranged above the upper suction opening. The plate member is arranged away from the upper suction opening such that a passage is formed between the plate member and the upper suction opening.