WO2004031701A1 - Vorrichtung zur bestimmung wenigstens eines parameters eines in einer leitung strömenden mediums - Google Patents
Vorrichtung zur bestimmung wenigstens eines parameters eines in einer leitung strömenden mediums Download PDFInfo
- Publication number
- WO2004031701A1 WO2004031701A1 PCT/DE2003/001161 DE0301161W WO2004031701A1 WO 2004031701 A1 WO2004031701 A1 WO 2004031701A1 DE 0301161 W DE0301161 W DE 0301161W WO 2004031701 A1 WO2004031701 A1 WO 2004031701A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- channel
- main flow
- flow direction
- line
- projections
- Prior art date
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
-
- 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
- G01F1/6842—Structural arrangements; Mounting of elements, e.g. in relation to fluid flow with means for influencing the fluid flow
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F5/00—Measuring a proportion of the volume flow
Definitions
- the invention relates to a device for determining at least one parameter of a medium flowing in a line with the features of the preamble of independent claim 1.
- DE 196 23 334 A1 discloses a device for determining the mass of a medium flowing in a line, which has a part introduced into the line, in which a channel structure is provided, which comprises a single measuring channel, in which a measuring element is arranged.
- Devices of this type are used, for example, as air mass meters in the air intake tract of an internal combustion engine. Splashing water and dust can enter the air intake tract.
- the internal combustion engine is switched off through the crankshaft ventilation introduction
- the device according to the invention for determining at least one parameter of a medium flowing in a line with the characterizing features of claim 1 has the advantage that the risk of contamination or damage to the measuring element is reduced by the liquid or solid particles transported with the medium, at the same time, however, the functionality of the device is not adversely affected when determining the at least one parameter.
- Liquid or solid particles that have entered the entrance area flow past a branching point of the measuring channel and reach a separation zone where they leave the device again through an opening in the opening.
- Two projections that protrude into the entrance area from opposite inner walls of the entrance area advantageously have the effect that the flow is deflected and liquid and solid particles are kept away from the measuring channel, but an already formed liquid film does not tear off.
- the combination of protrusions and excretion zone results in sufficient water repellency overall, without the functionality of the device being significantly impaired when determining the at least one parameter, for example when measuring the air mass.
- FIG. 1 shows an embodiment of the device according to the invention in the installed position on a line
- FIG. 2 shows a plan view of FIG. 1
- FIG. 3 shows an enlarged detail cross section from FIG. 1 with a first modification of the excretion channel
- FIG. 4 shows an enlarged detail cross section from FIG. 1 with a second modification of the excretion channel.
- the line 1 shows a line 3 in which a medium flows in a main flow direction 18.
- the line can be, for example, an intake manifold of an internal combustion engine.
- the medium is, for example, the air flowing in the intake manifold.
- a device 1 according to the invention is arranged on the line 3 such that a part 6 of the device projects into the line 3 and is exposed to the medium flowing there with a predetermined orientation.
- the device 1 for determining at least one parameter of the medium comprises, in addition to the part 6 designed as a measuring housing another carrier part, not shown, with an electrical connection, in which carrier part, for example, evaluation electronics is accommodated.
- the device 1 can be inserted, for example, with the part 6 through an insertion opening 16 of a wall 15 of the line 3, which wall 15 limits a flow cross section of the line 3.
- the evaluation electronics can be arranged inside and / or outside the flow cross section of the line 3.
- a measuring element 9 on a measuring element carrier 10 is used in the device 1, the measuring data of which can be evaluated with the evaluation electronics.
- the volume flow or the mass flow of the flowing medium is determined as a parameter.
- Other parameters that can be measured are, for example, pressure, temperature, concentration of a medium component or flow rate, which are determined by means of suitable sensor elements.
- the device 1 has, for example, a longitudinal axis 12 in the axial direction, which for example runs in the direction of installation of the device 1 in the line 3 and which e.g. can also be the central axis.
- the direction of the flowing medium hereinafter referred to as the main flow direction, is identified by corresponding arrows 18 in FIG. 1 and runs from left to right there.
- the part 6 has a housing with, for example, a cuboid structure with an end wall 13 facing in the installation position of the main flow direction 18 of the medium and a rear wall 14 facing away from it, a first side wall 17 and a second side wall 18 (FIG. 2) and one, for example, running parallel to the main flow direction third wall 19. Furthermore, part 6 has a channel structure arranged therein with an input area 27 and a measuring channel 30 branching off from the input area 27. The arrangement of the device 1 relative to the line 3 ensures that the medium flowing in the main flow direction 18 ′′ hits the part 6 in a predetermined direction and a partial flow of the medium in this direction through an opening 21 on the end face 13 into the entrance area 27.
- the opening 21 can be oriented, for example, perpendicular to the main flow direction 18, but a different orientation of the opening 21 to the main flow direction 18 is also conceivable, from the input area 27 the medium partly reaches the measuring channel 30 and provided with the measuring element 9 some of it continues to flow into one behind the junction for the measuring channel
- Elimination zone 28 which is connected to the line 3 via at least one elimination opening 33 arranged in the first side wall 17 and / or the second side wall 18 and / or the wall 19.
- the main flow direction 18 runs in a plane in which the discharge opening 33 is also arranged.
- the plane in which the discharge opening 33 is arranged can also be arranged at an angle to the main flow direction 18 that is different from zero degrees.
- a first partial flow of the medium that has entered the input region 27 flows completely into the measuring channel 30 and a second partial flow completely flows through the one separation opening 33.
- liquid and / or solid particles such as oil or water particles, are present in the flowing medium Soiling or damage measuring element 9.
- the opening 21 on the end face 13 of the part 6 has an upper edge 36 in the axial direction 12 which is closest to the measuring element 9 in the axial direction 12.
- An imaginary upper plane 39 runs through the upper edge 36 and perpendicular to the plane of the drawing in FIG. 1 and parallel to the main flow direction 18.
- the separation opening 33 is arranged in the axial direction 12 below this upper plane 39.
- the entrance area 27 is provided in the area of the opening 21 with inclined or curved surfaces 22 and 33 and with projections 51, 52 which is designed in such a way that the medium flowing into the entrance area is deflected away from the upper level 39. Since the liquid and or solid particles are larger and have a higher density than the gaseous flowing medium, they move in the axial direction 12 away from the upper plane 39. Since the separation opening 33 is arranged below the upper level 39, the liquid and solid particles collect in the separation zone 28 and are sucked into the line 3 by the air flowing past the separation opening 33.
- a first section of the measuring channel 30 extends approximately in the direction of the insertion opening 16.
- a first taper 46 which causes the medium flowing into the measuring channel to accelerate, thereby causing the air is sucked out of the entrance area 27.
- Behind the first taper flowing 'medium is deflected in the measuring channel 30 and then flows, for example, approximately in the main flow direction 18 of the measuring element 9 over.
- the first or second taper can be designed in the form of an all-round or partial narrowing of the side surfaces of the measuring channel 30.
- the medium flows on from the measuring element 9 and is deflected into a section 41 of the measuring channel, which extends away from the insertion opening 16 in the axial direction 12 extends. From this section, it is deflected into a further section 42 which, for example, runs counter to the main flow direction 18 and at an outlet opening 34 which is arranged, for example, perpendicular to the main flow direction 18 or at an angle different from zero degrees to the main flow direction 18, opens into line 3.
- the measuring channel 30 is, for example, approximately C-shaped.
- FIG. 2 shows a top view of the end face 13 of part 6 from FIG. 1.
- two projections 51 and 52 of mirror-symmetrical design protrude from the inner walls 37, 38 of the inlet area 27 opposite one another transversely to the main flow direction 18 into the inlet area 27 into it.
- the mutually facing ends 53, 54 of the projections 51, 52 are spaced apart from one another by a gap 60, so that the two projections 51 and 52 have approximately the contour of two facing bridge projections which are separated from one another by the gap.
- the surfaces 55, 56 of the projections 51, 52 facing the main flow direction are partially beveled relative to the main flow direction 18, the beveled surfaces 55, 56 forming an intersection angle different from zero degrees with the main flow direction 18.
- the medium flowing into the input region 27 is directed away from the branching point 44 of the measuring channel 30 and directed towards the Ausseheimanngszone 28. It can thus be achieved in an increased manner that liquid or solid particles cannot get into the measuring channel 30. Because the ends facing each other
- FIG. 3 shows an enlarged section from FIG. 1 for a further exemplary embodiment of the invention.
- the excretion zone 28 is shown.
- liquid and / or solid particles that have entered the entrance area 27 reach the separation zone 28 and from there to the separation openings 33.
- the separation zone 28 has a separation channel 28a provided with a throttle structure 47, which in FIG the discharge opening 33 opens out.
- the throttle structure is formed by a section 47 of the separation channel 28a with a tapered cross-sectional area. The taper can be steady or discontinuous.
- the throttling structure is advantageously achieved that, with the same amount of water excretion, the amount of air flowing through the excretion channel is throttled and a larger amount of air gets into the measuring channel.
- FIG. 4 shows a further exemplary embodiment, in which the throttle structure is formed by ribs 48 arranged on the inner wall of the Aussehei Plantgskanal 28a and preferably extending in the direction of excretion.
- the ribs reduce the flow velocity and increase the throughput through the measuring channel.
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Volume Flow (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP03732207A EP1549915A1 (de) | 2002-09-30 | 2003-04-09 | Vorrichtung zur bestimmung wenigstens eines parameters eines in einer leitung strömenden mediums |
US10/511,839 US7124626B2 (en) | 2002-09-30 | 2003-04-09 | Device for determining at least one parameter of a medium flowing in a line |
JP2004540457A JP2006501452A (ja) | 2002-09-30 | 2003-04-09 | 管路内を流れる媒体の少なくとも1つのパラメータを測定する装置 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10245965.7A DE10245965B4 (de) | 2002-09-30 | 2002-09-30 | Vorrichtung zur Bestimmung wenigstens eines Parameters eines in einer Leitung strömenden Mediums |
DE10245965.7 | 2002-09-30 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2004031701A1 true WO2004031701A1 (de) | 2004-04-15 |
Family
ID=32010092
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2003/001161 WO2004031701A1 (de) | 2002-09-30 | 2003-04-09 | Vorrichtung zur bestimmung wenigstens eines parameters eines in einer leitung strömenden mediums |
Country Status (6)
Country | Link |
---|---|
US (1) | US7124626B2 (de) |
EP (1) | EP1549915A1 (de) |
JP (1) | JP2006501452A (de) |
KR (1) | KR101009271B1 (de) |
DE (1) | DE10245965B4 (de) |
WO (1) | WO2004031701A1 (de) |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10253970A1 (de) * | 2002-11-20 | 2004-06-03 | Robert Bosch Gmbh | Vorrichtung zur Bestimmung wenigstens eines Parameters eines in einer Leitung strömenden Mediums |
JP4161077B2 (ja) * | 2005-09-29 | 2008-10-08 | 三菱電機株式会社 | 流量測定装置 |
DE102006045658B4 (de) | 2006-09-27 | 2023-05-04 | Robert Bosch Gmbh | Vorrichtung zur Messung fluider Medien |
DE102007019282A1 (de) * | 2007-04-24 | 2008-11-06 | Robert Bosch Gmbh | Vorrichtung zur Messung strömender Medien |
JP4412357B2 (ja) | 2007-06-14 | 2010-02-10 | 株式会社デンソー | 空気流量測定装置 |
JP5168223B2 (ja) | 2009-05-01 | 2013-03-21 | 株式会社デンソー | 空気流量測定装置 |
JP5799682B2 (ja) * | 2011-09-05 | 2015-10-28 | 株式会社デンソー | 空気流量測定装置 |
JP6463245B2 (ja) * | 2015-09-30 | 2019-01-30 | 日立オートモティブシステムズ株式会社 | 熱式流量計 |
CN109416270B (zh) * | 2016-07-01 | 2020-12-01 | 日立汽车系统株式会社 | 热式流量计 |
JP6289585B1 (ja) * | 2016-10-25 | 2018-03-07 | 三菱電機株式会社 | 流量測定装置 |
DE102017206234A1 (de) * | 2017-04-11 | 2018-10-11 | Robert Bosch Gmbh | Sensorelement zur Erfassung mindestens einer Eigenschaft eines fluiden Mediums |
JP2020106428A (ja) * | 2018-12-27 | 2020-07-09 | 株式会社デンソー | 物理量計測装置 |
WO2019156042A1 (ja) * | 2018-02-07 | 2019-08-15 | 株式会社デンソー | 物理量計測装置 |
JP2020024152A (ja) * | 2018-08-08 | 2020-02-13 | 株式会社Soken | 流量計測装置 |
JP7068095B2 (ja) * | 2018-08-14 | 2022-05-16 | 株式会社Soken | 流量測定装置 |
JP2020046292A (ja) * | 2018-09-19 | 2020-03-26 | 株式会社Soken | 流量測定装置 |
DE102021203219B3 (de) * | 2021-03-30 | 2022-06-23 | Vitesco Technologies GmbH | Luftmassensensor und Kraftfahrzeug |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19623334A1 (de) * | 1996-06-12 | 1997-12-18 | Bosch Gmbh Robert | Vorrichtung zur Messung der Masse eines strömenden Mediums |
JP2000304585A (ja) * | 1999-04-23 | 2000-11-02 | Hitachi Ltd | 流量計測装置 |
EP1091195A1 (de) * | 1999-10-06 | 2001-04-11 | Ngk Spark Plug Co., Ltd | Durchflussrate- und Durchflussgeschwindigkeitsmessvorrichtung |
DE10065362A1 (de) * | 1999-12-28 | 2001-07-19 | Unisia Jecs Corp | Flussratenmeßvorrichtung mit einer Flußratendetektorschutzstruktur |
US6332356B1 (en) * | 1998-04-08 | 2001-12-25 | Robert Bosch Gmbh | Measuring device for measuring the mass of a medium flowing in a line |
DE10135142A1 (de) * | 2001-04-20 | 2002-10-31 | Bosch Gmbh Robert | Vorrichtung zur Bestimmung zumindest eines Parameters eines in einer Leitung strömenden Mediums |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4340882A1 (de) * | 1993-12-01 | 1995-06-08 | Bosch Gmbh Robert | Vorrichtung zur Messung der Masse eines strömenden Mediums |
DE19741031A1 (de) * | 1997-09-18 | 1999-03-25 | Bosch Gmbh Robert | Vorrichtung zur Messung der Masse eines strömenden Mediums |
DE19927818C2 (de) * | 1999-06-18 | 2003-10-23 | Bosch Gmbh Robert | Vorrichtung zur Messung der Masse eines strömenden Mediums |
DE19942502A1 (de) * | 1999-09-07 | 2001-03-08 | Bosch Gmbh Robert | Vorrichtung zur Messung von zumindest einem Parameter eines in einer Leitung strömenden Mediums |
DE10009153A1 (de) * | 2000-02-26 | 2001-09-13 | Bosch Gmbh Robert | Vorrichtung zur Bestimmung von zumindest einem Parameter eines strömenden Gas-Flüssigkeitsgemischs bzw. Verwendung eines Strömungsgleichrichters als Kondensationsfalle bzw. Verfahren zur Kondensierung einer Flüssigkeit |
DE10042400A1 (de) * | 2000-08-30 | 2002-03-14 | Bosch Gmbh Robert | Vorrichtung zur Bestimmung zumindest eines Parameters eines strömenden Mediums |
DE10059421C2 (de) * | 2000-11-30 | 2003-04-10 | Bosch Gmbh Robert | Vorrichtung zur Bestimmung zumindest eines Parameters eines strömenden Mediums |
DE10230531B4 (de) * | 2002-07-05 | 2018-01-18 | Robert Bosch Gmbh | Vorrichtung zur Bestimmung wenigstens eines Parameters eines in einer Leitung strömenden Mediums |
-
2002
- 2002-09-30 DE DE10245965.7A patent/DE10245965B4/de not_active Expired - Lifetime
-
2003
- 2003-04-09 JP JP2004540457A patent/JP2006501452A/ja active Pending
- 2003-04-09 US US10/511,839 patent/US7124626B2/en not_active Expired - Lifetime
- 2003-04-09 EP EP03732207A patent/EP1549915A1/de not_active Withdrawn
- 2003-04-09 KR KR1020057005470A patent/KR101009271B1/ko active IP Right Grant
- 2003-04-09 WO PCT/DE2003/001161 patent/WO2004031701A1/de active Application Filing
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19623334A1 (de) * | 1996-06-12 | 1997-12-18 | Bosch Gmbh Robert | Vorrichtung zur Messung der Masse eines strömenden Mediums |
US6332356B1 (en) * | 1998-04-08 | 2001-12-25 | Robert Bosch Gmbh | Measuring device for measuring the mass of a medium flowing in a line |
JP2000304585A (ja) * | 1999-04-23 | 2000-11-02 | Hitachi Ltd | 流量計測装置 |
EP1091195A1 (de) * | 1999-10-06 | 2001-04-11 | Ngk Spark Plug Co., Ltd | Durchflussrate- und Durchflussgeschwindigkeitsmessvorrichtung |
DE10065362A1 (de) * | 1999-12-28 | 2001-07-19 | Unisia Jecs Corp | Flussratenmeßvorrichtung mit einer Flußratendetektorschutzstruktur |
DE10135142A1 (de) * | 2001-04-20 | 2002-10-31 | Bosch Gmbh Robert | Vorrichtung zur Bestimmung zumindest eines Parameters eines in einer Leitung strömenden Mediums |
Non-Patent Citations (1)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 2000, no. 14 5 March 2001 (2001-03-05) * |
Also Published As
Publication number | Publication date |
---|---|
JP2006501452A (ja) | 2006-01-12 |
KR101009271B1 (ko) | 2011-01-18 |
DE10245965A1 (de) | 2004-04-15 |
EP1549915A1 (de) | 2005-07-06 |
US20050217357A1 (en) | 2005-10-06 |
DE10245965B4 (de) | 2021-06-02 |
KR20050067407A (ko) | 2005-07-01 |
US7124626B2 (en) | 2006-10-24 |
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