发明名称 |
Flow rate-measuring device |
摘要 |
A flow rate-measuring device capable of measuring accurately a flow rate of fluid to be measured containing a drift or eddy as compared with a conventional device is provided. A flow rate-measuring passage 11 for measuring a flow rate of the fluid to be measured is constructed so that its opening area in an upstream region communicating to an inlet 111 gradually decreases from upstream to downstream. A flow rate-detecting element 31 is disposed near an outlet in the flow rate-measuring passage 11. The device is provided with a leak flow passage 18 allowing a part of the fluid which has flown in from the inlet 111 of the flow rate-measuring passage 11 to leak out of the flow rate-measuring passage 11 at a portion upstream from an outlet 112 of the flow rate-measuring passage 11, in particular upstream from a position where the flow rate-detecting element 31 is disposed.
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申请公布号 |
US6561021(B2) |
申请公布日期 |
2003.05.13 |
申请号 |
US20010839534 |
申请日期 |
2001.04.23 |
申请人 |
MITSUBISHI DENKI KABUSHIKI KAISHA |
发明人 |
URAMACHI HIROYUKI;YONEZAWA FUMIYOSHI;SUETAKE NARUKI;TOHYAMA RYUJI;YAMAKAWA TOMOYA;HAMADA SHINGO;OSHIMA TAKEHARU |
分类号 |
G01F1/72;G01F1/684;(IPC1-7):G01F5/00 |
主分类号 |
G01F1/72 |
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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