发明名称 |
Butterfly valve with flow straightening |
摘要 |
A butterfly valve comprises a valve shaft placed across a flow passage and a plate-like valve element provided on the valve shaft so as to be rotatable about the valve shaft to regulate a flow rate of fluid in the flow passage. The valve element has a section that gradually decreases in thickness from the valve shaft toward an outer edge in a direction nearly perpendicular to the valve shaft. The valve element further includes a plurality of inclined surfaces on each side so that the corresponding inclined surfaces on both sides of the valve element are identical in section in a direction parallel to the valve shaft. The valve element is provided on each side with a plurality of flow straightening ribs each extending in a direction perpendicular to the valve shaft and inclining along each inclined surface.
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申请公布号 |
US7744061(B2) |
申请公布日期 |
2010.06.29 |
申请号 |
US20060542205 |
申请日期 |
2006.10.04 |
申请人 |
AISAN KOGYO KABUSHIKI KAISHA;DENSO CORPORATION |
发明人 |
ISOGAI TOMIHARU;KINO HISASHI;IWAOKA SHIN;KADO HIROYUKI |
分类号 |
F16K1/22 |
主分类号 |
F16K1/22 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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