JP6438707B2 - 熱式流量計 - Google Patents
熱式流量計 Download PDFInfo
- Publication number
- JP6438707B2 JP6438707B2 JP2014168973A JP2014168973A JP6438707B2 JP 6438707 B2 JP6438707 B2 JP 6438707B2 JP 2014168973 A JP2014168973 A JP 2014168973A JP 2014168973 A JP2014168973 A JP 2014168973A JP 6438707 B2 JP6438707 B2 JP 6438707B2
- Authority
- JP
- Japan
- Prior art keywords
- passage
- sub
- flow
- flow meter
- flow rate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
- G01F1/68—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using thermal effects
- G01F1/684—Structural arrangements; Mounting of elements, e.g. in relation to fluid flow
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Volume Flow (AREA)
Description
31…第1の通路
32…第2の通路
32a…上流側通路
32b…下流側通路
34…副取込口
35…流動抵抗部
36…突出部
37…絞り部
302…ハウジング
303…表カバー
304…裏カバー
331…裏側副通路溝
332…表側副通路溝
350…主取込口
352…出口部
353…出口溝
355…排出口
382…貫通部
391…裏側副通路外周壁
392…裏側副通路内周壁
393…表側副通路外周壁
394…表側副通路内周壁
395…第1通路用壁
602…流量検出部
Claims (5)
- 副通路と、
前記副通路内に設けられた流量検出部と、を有し、
前記副通路は、前記流量検出素子の下流側に曲がり部を有する熱式流量計において、
前記副通路は、前記流量検出素子の下流であって、前記曲がり部での空気流の流速が低くなる側に位置する壁面が断面が略台形状に凹んでいる領域を有し、
前記略台形状の下底は上底より大であって、前記下底で前記副通路と前記領域とが連通することを特徴とする熱式流量計。 - 前記副通路は、前記凹んでいる領域と対向する外周側の壁面に流動抵抗部を有することを特徴とする請求項1に記載の熱式流量計。
- 前記副通路は、前記凹んでいる領域と対向する外周側の壁面に突起部を有することを特徴とする請求項1に記載の熱式流量計。
- 前記副通路は、前記凹んでいる領域の下流側に絞り部を有することを特徴とする請求項1に記載の熱式流量計。
- 前記絞り部は、内周側の壁面と外周側の壁面に対向するように設けられたそれぞれの突起部により形成されることを特徴とする請求項4に記載の熱式流量計。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2014168973A JP6438707B2 (ja) | 2014-08-22 | 2014-08-22 | 熱式流量計 |
PCT/JP2015/066425 WO2016027551A1 (ja) | 2014-08-22 | 2015-06-08 | 熱式流量計 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2014168973A JP6438707B2 (ja) | 2014-08-22 | 2014-08-22 | 熱式流量計 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2016045058A JP2016045058A (ja) | 2016-04-04 |
JP6438707B2 true JP6438707B2 (ja) | 2018-12-19 |
Family
ID=55350504
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2014168973A Expired - Fee Related JP6438707B2 (ja) | 2014-08-22 | 2014-08-22 | 熱式流量計 |
Country Status (2)
Country | Link |
---|---|
JP (1) | JP6438707B2 (ja) |
WO (1) | WO2016027551A1 (ja) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6658659B2 (ja) * | 2017-04-13 | 2020-03-04 | 株式会社デンソー | 物理量計測装置 |
JP7068095B2 (ja) * | 2018-08-14 | 2022-05-16 | 株式会社Soken | 流量測定装置 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3770369B2 (ja) * | 1999-06-21 | 2006-04-26 | 日本特殊陶業株式会社 | 流量及び流速測定装置 |
JP2001255188A (ja) * | 2000-03-13 | 2001-09-21 | Ngk Spark Plug Co Ltd | 流量及び流速測定装置 |
DE102005016449A1 (de) * | 2005-04-11 | 2006-10-12 | Robert Bosch Gmbh | Beheizter Heißfilmluftmassenmesser |
JP4161077B2 (ja) * | 2005-09-29 | 2008-10-08 | 三菱電機株式会社 | 流量測定装置 |
DE102007056888A1 (de) * | 2007-11-26 | 2009-05-28 | Robert Bosch Gmbh | Sensoranordnung zur Bestimmung eines Parameters eines fluiden Mediums |
-
2014
- 2014-08-22 JP JP2014168973A patent/JP6438707B2/ja not_active Expired - Fee Related
-
2015
- 2015-06-08 WO PCT/JP2015/066425 patent/WO2016027551A1/ja active Application Filing
Also Published As
Publication number | Publication date |
---|---|
WO2016027551A1 (ja) | 2016-02-25 |
JP2016045058A (ja) | 2016-04-04 |
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