JPH0265122U - - Google Patents
Info
- Publication number
- JPH0265122U JPH0265122U JP14417388U JP14417388U JPH0265122U JP H0265122 U JPH0265122 U JP H0265122U JP 14417388 U JP14417388 U JP 14417388U JP 14417388 U JP14417388 U JP 14417388U JP H0265122 U JPH0265122 U JP H0265122U
- Authority
- JP
- Japan
- Prior art keywords
- boundary layer
- casing
- downstream
- constriction
- constriction part
- 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.)
- Granted
Links
- 241000234435 Lilium Species 0.000 claims description 4
- 238000000926 separation method Methods 0.000 claims description 4
- 238000011144 upstream manufacturing Methods 0.000 claims 1
- 238000007796 conventional method Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Landscapes
- Measuring Volume Flow (AREA)
- Details Of Flowmeters (AREA)
Description
第１図ないし第５図は本考案の第１の実施例を
示し、第１図は流量検出装置を示す縦断面図、第
２図は第１図中の―矢示方向拡大断面図、第
３図は絞り部材を示す拡大縦断面図、第４図は第
３図中の要部拡大図、第５図は絞り部材およびケ
ーシングの要部拡大縦断面図、第６図ないし第８
図は第２の実施例を示し、第６図は絞り部材の縦
断面図、第７図は第６図中の要部を拡大して示す
境界層の説明図、第８図は第６図中の要部拡大図
、第９図は第２の実施例の変形例を示す第８図と
同様の要部拡大図、第１０図は従来技術を示す流
量検出装置の縦断面図、第１１図は他の従来技術
を示す流量検出装置の縦断面図、第１２図および
第１３図は別の従来技術を示し、第１２図はケー
シングに設けた絞り部等の要部縦断面図、第１３
図は第１２図中の要部拡大図である。
３，７……管部材、１１……ケーシング、１２
，２１……絞り部材、１２Ａ，２１Ａ……絞り部
、１２Ｂ……ストレート部（境界層剥離抑制部）
、１２Ｃ，２１Ｃ……固定部、１４……ベンチユ
リ管、１５……熱線素子、１８，２２……境界層
剥離点、２１Ｂ……環状凸部、２１Ｂ′……環状
凹部。
1 to 5 show a first embodiment of the present invention, in which FIG. 1 is a longitudinal sectional view showing a flow rate detection device, FIG. 2 is an enlarged sectional view in the direction of the - arrow in FIG. 3 is an enlarged vertical sectional view showing the throttle member, FIG. 4 is an enlarged view of the main part in FIG. 3, FIG. 5 is an enlarged longitudinal sectional view of the main part of the throttle member and the casing, and FIGS.
The figures show the second embodiment, FIG. 6 is a longitudinal cross-sectional view of the aperture member, FIG. 7 is an explanatory diagram of the boundary layer showing an enlarged view of the main part in FIG. 6, and FIG. 8 is the diagram shown in FIG. FIG. 9 is an enlarged view of the main parts similar to FIG. 8 showing a modification of the second embodiment, FIG. The figure is a longitudinal sectional view of a flow rate detection device showing another conventional technique, FIGS. 12 and 13 are another conventional technique, and FIG. 13
The figure is an enlarged view of the main part in FIG. 12. 3, 7... Pipe member, 11... Casing, 12
, 21...Aperture member, 12A, 21A...Aperture part, 12B...Straight part (boundary layer peeling suppressing part)
, 12C, 21C... fixed part, 14... bench lily tube, 15... hot wire element, 18, 22... boundary layer separation point, 21B... annular convex portion, 21B'... annular recess.
Claims (1)
ーシングの上流端側に設けられた絞り部と、該絞
り部の下流側に位置して該絞り部に設けられ、該
絞り部下流側での境界層剥離を抑える境界層剥離
抑制部と、該境界層剥離抑制部よりも下流側に位
置して、前記ケーシング内に絞り部と同軸に配設
され、前記絞り部よりも小径に形成されたベンチ
ユリ管と、該ベンチユリ管の下流側寄りに位置し
て、該ベンチユリ管内に設けられた流量検出用の
熱線素子とから構成してなる吸入空気流量検出装
置。 A casing provided in the middle of the intake pipe, a constriction part provided on the upstream end side of the casing, and a boundary layer located downstream of the constriction part and provided in the constriction part, and downstream of the constriction part. a boundary layer separation suppressing part that suppresses separation; and a bench lily pipe located downstream of the boundary layer separation suppressing part, disposed coaxially with the constricted part within the casing, and formed to have a smaller diameter than the constricted part. and a hot wire element for detecting flow rate provided in the bench lily tube and located on the downstream side of the vent lily tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14417388U JPH07891Y2 (en) | 1988-11-04 | 1988-11-04 | Intake air flow rate detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14417388U JPH07891Y2 (en) | 1988-11-04 | 1988-11-04 | Intake air flow rate detector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0265122U true JPH0265122U (en) | 1990-05-16 |
| JPH07891Y2 JPH07891Y2 (en) | 1995-01-11 |
Family
ID=31411642
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14417388U Expired - Lifetime JPH07891Y2 (en) | 1988-11-04 | 1988-11-04 | Intake air flow rate detector |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07891Y2 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008500533A (en) * | 2004-05-25 | 2008-01-10 | デルファイ・テクノロジーズ・インコーポレーテッド | Airflow measurement system that is not easily affected by changes in the flow field |
| JP2010112876A (en) * | 2008-11-07 | 2010-05-20 | Hino Motors Ltd | Fluid flowmeter |
| JP2014098701A (en) * | 2012-11-14 | 2014-05-29 | Krohne A.G. | Nuclear magnetic flow meter and method for operation of nuclear magnetic flow meters |
| JP2017172814A (en) * | 2016-03-18 | 2017-09-28 | 三浦工業株式会社 | Venturi nozzle and fuel supply device including venturi nozzle |
| JP2017172815A (en) * | 2016-03-18 | 2017-09-28 | 三浦工業株式会社 | Venturi nozzle, and fuel supply device including venturi nozzle |
-
1988
- 1988-11-04 JP JP14417388U patent/JPH07891Y2/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008500533A (en) * | 2004-05-25 | 2008-01-10 | デルファイ・テクノロジーズ・インコーポレーテッド | Airflow measurement system that is not easily affected by changes in the flow field |
| JP2010112876A (en) * | 2008-11-07 | 2010-05-20 | Hino Motors Ltd | Fluid flowmeter |
| JP2014098701A (en) * | 2012-11-14 | 2014-05-29 | Krohne A.G. | Nuclear magnetic flow meter and method for operation of nuclear magnetic flow meters |
| JP2017172814A (en) * | 2016-03-18 | 2017-09-28 | 三浦工業株式会社 | Venturi nozzle and fuel supply device including venturi nozzle |
| JP2017172815A (en) * | 2016-03-18 | 2017-09-28 | 三浦工業株式会社 | Venturi nozzle, and fuel supply device including venturi nozzle |
| CN108496041A (en) * | 2016-03-18 | 2018-09-04 | 三浦工业株式会社 | Venturi nozzle and the fuel supply system for having the Venturi nozzle |
| US10539323B2 (en) | 2016-03-18 | 2020-01-21 | Miura Co., Ltd. | Venturi nozzle and fuel supply device comprising venturi nozzle for controlling a ratio between a fuel gas and an air flow |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH07891Y2 (en) | 1995-01-11 |