EP1474658A1 - Flow straightener for a mass flow sensor - Google Patents

Flow straightener for a mass flow sensor

Info

Publication number
EP1474658A1
EP1474658A1 EP03706293A EP03706293A EP1474658A1 EP 1474658 A1 EP1474658 A1 EP 1474658A1 EP 03706293 A EP03706293 A EP 03706293A EP 03706293 A EP03706293 A EP 03706293A EP 1474658 A1 EP1474658 A1 EP 1474658A1
Authority
EP
European Patent Office
Prior art keywords
measuring tube
fastening elements
metal grid
flow
fastening
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.)
Withdrawn
Application number
EP03706293A
Other languages
German (de)
French (fr)
Inventor
Stephen Setescak
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG
Original Assignee
Siemens AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Siemens AG filed Critical Siemens AG
Publication of EP1474658A1 publication Critical patent/EP1474658A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15D—FLUID DYNAMICS, i.e. METHODS OR MEANS FOR INFLUENCING THE FLOW OF GASES OR LIQUIDS
    • F15D1/00—Influencing flow of fluids
    • F15D1/02—Influencing flow of fluids in pipes or conduits
    • 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
    • G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus

Definitions

  • the invention relates to a measuring tube for an air mass sensor with a metal grating, which acts as a flow straightener and is arranged transversely to the air flow, and a method for its production.
  • Such a measuring tube is known from EP 0 458 998 B1 for use in a motor vehicle.
  • the flow straightener consists of a honeycomb grid made of plastic with a metal grid welded to its edge.
  • the flow rectifier is installed at the measuring tube inlet e.g. attached by hot stamping.
  • At least two radially inwardly extending fastening elements are arranged on the measuring tube, to which the metal grid is fastened under pretension.
  • the pretension is generated in accordance with the method according to the invention by first of all fastening elements through suitable tool can be bent. Then the metal grid is attached to the fasteners and then the tool is removed.
  • the fastening elements are designed as narrow, rib-like structures. In principle, two fastening elements are sufficient; However, a better fastening results with a larger number of fastening elements, which are preferably arranged equidistantly on the inner wall of the measuring tube, for example integrally formed on the measuring tube.
  • the ends of two fastening elements are connected to one another by means of a connecting element such that a bow-shaped fastening structure or bow-shaped fastening structures result.
  • the connecting elements can be bent concentrically with the measuring tube.
  • the fastening elements are curved in or against the air flow direction before the metal grille is fastened.
  • they can be brought into a straight state by means of the tool, that is to say they can be bent against their direction of curvature. In this straight state, the attachment of the metal grille is easier to handle.
  • FIG. 1 shows a first exemplary embodiment of a measuring tube according to the invention
  • FIG. 2 shows a front view of the measuring tube according to FIG. 1
  • FIG. 3 shows a detailed illustration of the measuring tube according to FIG. 1
  • FIG. 4 shows a front view of a second exemplary embodiment of a measuring tube according to the invention
  • FIG. 1 shows a measuring tube 1 for an air mass flow, which is indicated by an arrow 2.
  • An air mass sensor arrangement 3 (not explained in more detail) is inserted into the measuring tube.
  • a metal grille 4 functioning as a flow straightener is arranged transversely to the flow direction 2.
  • it is connected to the measuring tube 1 by means of fastening elements 5 under prestress.
  • FIG. 2 shows that in the exemplary embodiment 6 shown, narrow, rib-shaped fastening elements 5 are arranged on the inner wall of the measuring tube 1, and are preferably integrally formed thereon. They run radially into the interior of the measuring tube 1. Their length is dimensioned such that they enable the metal grid 4 to be securely and permanently fastened, but do not significantly influence the flow pattern.
  • the connecting area of the metal grid with the fastening elements 5 is indicated by a dashed line 6.
  • the manufacturing process of the measuring tube 1 is explained in greater detail on the basis of the detailed representation A in FIG. 3.
  • There three positions or states of a fastener 5 are designated by the letters a, b and c.
  • the state a denotes the production-related state of the fastening element 5, in which it is curved in the flow direction 2.
  • the fastening element 5 is brought into the state b by a tool, not shown, in which it is almost perpendicular to the measuring tube 1, that is to say almost straight.
  • the metal grid 4 is connected to the fastening element 5, for example welded by ultrasonic welding.
  • the tool is removed, whereupon the fastening element 5 is in its again Wants to return to the initial state a, but is prevented by the metal grid 4, so that it can only bend back to the state b, in which it holds the metal grid 4 under a prestress.
  • this ensures that the metal grid 4 cannot dent indefinitely and, in addition, it can only be excited to vibrate at significantly higher frequencies, so that it has a higher vibration resistance.
  • FIG. 4 shows a further development of the measuring tube 1 according to the invention in a front view.
  • two of the fastening elements 7 are each connected by means of connecting elements 8 which are bent concentrically to the inner wall of the measuring tube 1, so that bow-shaped fastening structures for the metal grid 4 result.
  • the mounting surface for the metal grid 4 is shown by a dashed line 9.
  • the connecting elements 8, which are preferably formed in one piece with the fastening elements 7, enable a better fastening of the metal grid 4 in the inner region of the measuring tube 1.

Abstract

The invention relates to a mass tube (1) for an air measuring sensor (3) comprising a metal grid (4) acting as a flow rectifier arranged perpendicular to the air flow (2). At least two fixing elements (5) are arranged on the measuring tube (1), said elements extending inwards in a radial manner, whereon the metal grid (4) is fixed by pre-tensioning.

Description

STRÖMUNGSGLEICHRICHTER FÜR EINEN LUFTMASSENSENSOR FLOW RECTIFIER FOR A AIR MASS SENSOR
Die Erfindung betrifft ein Messrohr für einen Luftmassensensor mit einem darin quer zur Luftströmung angeordneten, als Strömungsgleichrichter fungierenden Metallgitter sowie ein Verfahren zu dessen Herstellung.The invention relates to a measuring tube for an air mass sensor with a metal grating, which acts as a flow straightener and is arranged transversely to the air flow, and a method for its production.
Ein solches Messrohr ist aus der EP 0 458 998 Bl zur Verwendung in einem Kraftfahrzeug bekannt. Dort besteht der Strömungsgleichrichter aus einem Wabengitter aus Kunststoff mit einem an dessen Rand angeschweißten Metallgitter. Der Strö- mungsgleichrichter wird am Messrohr-Einlass z.B. mittels Heißverstämmen befestigt.Such a measuring tube is known from EP 0 458 998 B1 for use in a motor vehicle. There the flow straightener consists of a honeycomb grid made of plastic with a metal grid welded to its edge. The flow rectifier is installed at the measuring tube inlet e.g. attached by hot stamping.
Bei dem bekannten Strömungsgleichrichter kann es durch im Fahrzeug auftretende Vibrationen zu einem mechanischen Aus- fall des Metallgitters kommen. Außerdem ist es möglich, dass sich das Metallgitter aufgrund von Alterung, Temperaturein- fluss, Feuchtigkeitssaufnah e und/oder Änderung der Messrohrgeometrie Undefiniert verbeult, was zu einer Verwirbelung der Luftströmung führen kann.In the known flow straightener, vibrations occurring in the vehicle can lead to a mechanical failure of the metal grille. It is also possible that the metal grille will buckle indefinitely due to aging, the influence of temperature, moisture absorption and / or changes in the measuring tube geometry, which can lead to turbulence in the air flow.
Es ist daher die Aufgabe der Erfindung, diese Nachteile bei einem gattungsgemäßen Messrohr zu vermeiden.It is therefore the object of the invention to avoid these disadvantages in a generic measuring tube.
Die Aufgabe wird durch ein Messrohr gemäß Anspruch 1 sowie ein Verfahren gemäß Anspruch 5 gelöst. Vorteilhafte Weiterbildungen sind in den ünteransprüchen angegeben.The object is achieved by a measuring tube according to claim 1 and a method according to claim 5. Advantageous further developments are specified in the subordinate claims.
Demgemäß sind am Messrohr zumindest zwei radial nach innen sich erstreckende Befestigungselemente angeordnet, an denen das Metallgitter unter Vorspannung befestigt ist. Die Vorspannung wird entsprechend dem erfindungsgemäßen Verfahren erzeugt, indem zunächst die Befestigungselemente durch ein geeignetes Werkzeug gebogen werden. Danach wird das Metallgitter an den Befestigungselementen befestigt und anschließend das Werkzeug wieder entfernt.Accordingly, at least two radially inwardly extending fastening elements are arranged on the measuring tube, to which the metal grid is fastened under pretension. The pretension is generated in accordance with the method according to the invention by first of all fastening elements through suitable tool can be bent. Then the metal grid is attached to the fasteners and then the tool is removed.
Um die Luftströmung nicht unnötig zu beeinflussen sind die Befestigungselemente in vorteilhafter Ausgestaltung der Erfindung als schmale, rippenartige Strukturen ausgebildet. Dabei sind zwei Befestigungselemente prinzipiell ausreichend; eine bessere Befestigung ergibt sich jedoch mit einer größe- ren Anzahl von Befestigungselementen, die vorzugsweise äqui- distant an der Innenwand des Messrohrs angeordnet, beispielsweise einstückig an dem Messrohr angeformt sind.In order not to unnecessarily influence the air flow, in an advantageous embodiment of the invention the fastening elements are designed as narrow, rib-like structures. In principle, two fastening elements are sufficient; However, a better fastening results with a larger number of fastening elements, which are preferably arranged equidistantly on the inner wall of the measuring tube, for example integrally formed on the measuring tube.
In weiterer Ausbildung der Erfindung sind die Enden jeweils zweier Befestigungselemente mittels eines Verbindungselementes derart miteinander verbunden, dass sich eine bügeiförmige Befestigungsstruktur bzw. bügeiförmige Befestigungsstrukturen ergeben. Die Verbindungselemente können dabei konzentrisch mit dem Messrohr gebogen sein.In a further embodiment of the invention, the ends of two fastening elements are connected to one another by means of a connecting element such that a bow-shaped fastening structure or bow-shaped fastening structures result. The connecting elements can be bent concentrically with the measuring tube.
In einer vorteilhaften Ausgestaltung sind die Befestigungselemente vor der Befestigung des Metallgitters in oder gegen die Luftströmungsrichtung gekrümmt. Dadurch können sie mittels des Werkzeugs in einen geraden Zustand gebracht werden, also entgegen ihrer Krümmungsrichtung gebogen werden. In diesem geraden Zustand ist die Befestigung des Metallgitters einfacher zu handhaben.In an advantageous embodiment, the fastening elements are curved in or against the air flow direction before the metal grille is fastened. As a result, they can be brought into a straight state by means of the tool, that is to say they can be bent against their direction of curvature. In this straight state, the attachment of the metal grille is easier to handle.
Die Erfindung wird nachfolgend anhand von Ausführungsbeispie- len mit Hilfe von Figuren näher erläutert. Dabei zeigenThe invention is explained in more detail below on the basis of exemplary embodiments with the aid of figures. Show
Figur 1 ein erstes Ausführungsbeispiel eines erfindungsgemäßen Messrohres, Figur 2 eine Frontansicht des Messrohres gemäß Figur 1, Figur 3 eine Detaildarstellung des Messrohres gemäß Figur 1, Figur 4 eine Frontansicht eines zweites Ausführungsbeispiel eines erfindungsgemäßen Messrohres,1 shows a first exemplary embodiment of a measuring tube according to the invention, FIG. 2 shows a front view of the measuring tube according to FIG. 1, FIG. 3 shows a detailed illustration of the measuring tube according to FIG. 1, FIG. 4 shows a front view of a second exemplary embodiment of a measuring tube according to the invention,
Figur 1 zeigt ein Messrohr 1 für einen Luftmassenstrom, der mit einem Pfeil 2 angedeutet ist. In das Messrohr ist eine nicht näher erläuterte Luftmassensensoranordnung 3 eingesteckt. Vor der Luftmassensensoranordnung 3 bezogen auf den Luftmassenstrom 2 ist ein als Strömungsgleichrichter fungierendes Metallgitter 4 quer zur Strömungsrichtung 2 angeord- net . Es ist in erfindungsgemäßer Weise mittels Befestigungselemente 5 unter Vorspannung mit dem Messrohr 1 verbunden.FIG. 1 shows a measuring tube 1 for an air mass flow, which is indicated by an arrow 2. An air mass sensor arrangement 3 (not explained in more detail) is inserted into the measuring tube. In front of the air mass sensor arrangement 3 in relation to the air mass flow 2, a metal grille 4 functioning as a flow straightener is arranged transversely to the flow direction 2. In the manner according to the invention, it is connected to the measuring tube 1 by means of fastening elements 5 under prestress.
Figur 2 zeigt, dass im dargestellten Ausführungsbeispiel 6 schmale, rippenför ige Befestigungselemente 5 an der Innen- wand des Messrohres 1 angeordnet, vorzugsweise einstückig an diese angeformt sind. Sie verlaufen dabei radial ins Innere des Messrohres 1. Ihre Länge ist so bemessen, dass sie eine sichere und beständige Befestigung des Metallgitters 4 ermöglichen, jedoch den Strömungsverlauf nicht wesentlich beein- flussen. Durch eine strichlierte Linie 6 ist der Verbindungsbereich des Metallgitters mit den Befestigungselementen 5 angedeutet .FIG. 2 shows that in the exemplary embodiment 6 shown, narrow, rib-shaped fastening elements 5 are arranged on the inner wall of the measuring tube 1, and are preferably integrally formed thereon. They run radially into the interior of the measuring tube 1. Their length is dimensioned such that they enable the metal grid 4 to be securely and permanently fastened, but do not significantly influence the flow pattern. The connecting area of the metal grid with the fastening elements 5 is indicated by a dashed line 6.
Der Herstellungsvorgang des Messrohres 1 wird anhand der De- taildarstellung A in Figur 3 näher erläutert. Dort sind drei Stellungen bzw. Zustände eines Befestigungselementes 5 mit den Buchstaben a, b und c bezeichnet.The manufacturing process of the measuring tube 1 is explained in greater detail on the basis of the detailed representation A in FIG. 3. There three positions or states of a fastener 5 are designated by the letters a, b and c.
Der Zustand a bezeichnet den herstellungsbedingten Zustand des Befestigungselementes 5, in dem dieses in Strömungsrichtung 2 gekrümmt ist. Durch ein nicht näher dargestelltes Werkzeug wird das Befestigungselement 5 in den Zustand b gebracht, in dem es nahezu senkrecht zum Messrohr 1, also nahezu gerade ist. In diesem Zustand b wird das Metallgitter 4 mit dem Befestigungselement 5 verbunden, beispielsweise durch Ultraschall-Schweißen verschweißt. Danach wird das Werkzeug entfernt, worauf das Befestigungselement 5 wieder in seinen Ausgangszustand a zurückkehren möchte, jedoch durch das Metallgitter 4 daran gehindert wird, so dass es sich nur bis in den Zustand b zurückbiegen kann, in dem es das Metallgitter 4 unter einer Vorspannung hält. Dadurch wird einerseits er- reicht, dass das Metallgitter 4 nicht Undefiniert verbeulen kann und außerdem kann es nur bei deutlich höheren Frequenzen zu Schwingungen angeregt werden, so dass es eine höhere Vibrationsbeständigkeit hat.The state a denotes the production-related state of the fastening element 5, in which it is curved in the flow direction 2. The fastening element 5 is brought into the state b by a tool, not shown, in which it is almost perpendicular to the measuring tube 1, that is to say almost straight. In this state b, the metal grid 4 is connected to the fastening element 5, for example welded by ultrasonic welding. Then the tool is removed, whereupon the fastening element 5 is in its again Wants to return to the initial state a, but is prevented by the metal grid 4, so that it can only bend back to the state b, in which it holds the metal grid 4 under a prestress. On the one hand, this ensures that the metal grid 4 cannot dent indefinitely and, in addition, it can only be excited to vibrate at significantly higher frequencies, so that it has a higher vibration resistance.
In Figur 4 ist eine Weiterbildung des erfindungsgemäßen Messrohres 1 in einer Frontansicht zu sehen. Dort sind jeweils zwei der Befestungselemente 7 mittels konzentrisch zur Innenwand des Messrohres 1 gebogene Verbindungselemente 8 verbunden, so dass sich bügeiförmige Befestigungsstrukturen für das Metallgitter 4 ergeben. Die Befestigungsfläche für das Metallgitter 4 ist durch eine strichlierte Linie 9 dargestellt. Durch die Verbindungselemente 8, die vorzugsweise einstückig mit den Befestigungselementen 7 ausgebildet sind, ist eine bessere Befestigung des Metallgitters 4 im Innenbereich des Messrohres 1 möglich. FIG. 4 shows a further development of the measuring tube 1 according to the invention in a front view. There, two of the fastening elements 7 are each connected by means of connecting elements 8 which are bent concentrically to the inner wall of the measuring tube 1, so that bow-shaped fastening structures for the metal grid 4 result. The mounting surface for the metal grid 4 is shown by a dashed line 9. The connecting elements 8, which are preferably formed in one piece with the fastening elements 7, enable a better fastening of the metal grid 4 in the inner region of the measuring tube 1.

Claims

Patentansprüche claims
1. Messrohr für einen Luftmassensensor (3) mit einem darin quer zur Luftströmung (2) angeordneten, als Strömungsgleichrichter fungierenden Metallgitter (4) , dadurch gekennzeichnet, dass am Messrohr (1) zumindest zwei radial nach innen sich erstreckende Befestigungselemente (5; 7) angeordnet sind, an denen das Metallgitter (4) unter Vorspannung befestigt ist.1. Measuring tube for an air mass sensor (3) with a metal grating (4) arranged therein transversely to the air flow (2) and acting as a flow straightener, characterized in that at least two fastening elements (5; 7) extending radially inwards extend on the measuring tube (1). are arranged, on which the metal grid (4) is fastened under pretension.
2. Messrohr nach Anspruch 1, dadurch gekennzeichnet, dass die Befestigungselemente als schmale, rippenartige Strukturen (5) ausgebildet sind.2. Measuring tube according to claim 1, characterized in that the fastening elements are designed as narrow, rib-like structures (5).
3. Messrohr nach Anspruch 2, dadurch gekennzeichnet, dass die Enden jeweils zweier Befestigungselemente (7) mittels eines Verbindungselementes (8) derart miteinander verbunden sind, dass sich eine bügeiförmige Befestigungsstruktur ergibt.3. Measuring tube according to claim 2, characterized in that the ends of two fastening elements (7) are connected to one another by means of a connecting element (8) such that a bow-shaped fastening structure results.
4. Messrohr nach einem vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Befestigungselemente (5; 7) vor der Befestigung des Metallgitters (4) in oder entgegen der Luftströmungsrichtung (2) gekrümmt sind.4. Measuring tube according to one of the preceding claims, characterized in that the fastening elements (5; 7) are curved in or against the air flow direction (2) before the metal grid (4) is fastened.
5. Verfahren zum Herstellen eines Messrohrs für einen Luftmassensensor (3) nach einem der Ansprüche 1 bis 4, gekennzeichnet durch die Schritte:5. A method for producing a measuring tube for an air mass sensor (3) according to one of claims 1 to 4, characterized by the steps:
• die Befestigungselemente (5; 7) werden durch ein Werkzeug in oder gegen die Luftströmungsrichtung (2) gebogen, • das Metallgitter (4) wird an den Befestigungselementen (5; 7) befestigt,• the fastening elements (5; 7) are bent in or against the air flow direction (2) by a tool, • the metal grid (4) is fastened to the fastening elements (5; 7),
• das Werkzeug wird entfernt.• the tool is removed.
6. Verfahren nach Anspruch 5 soweit er sich auf Anspruch 4 bezieht, dadurch gekennzeichnet, dass die Befestigungselemente (5; 7) durch ein Werkzeug entgegen ihrer Krümmungsrichtung gebogen werden. 6. The method according to claim 5 insofar as it relates to claim 4, characterized in that the fastening elements (5; 7) are bent by a tool against their direction of curvature.
EP03706293A 2002-02-12 2003-02-06 Flow straightener for a mass flow sensor Withdrawn EP1474658A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10205757A DE10205757B4 (en) 2002-02-12 2002-02-12 Measuring tube for an air mass sensor and method for its production
DE10205757 2002-02-12
PCT/DE2003/000343 WO2003069284A1 (en) 2002-02-12 2003-02-06 Flow rectifier for an air mass sensor

Publications (1)

Publication Number Publication Date
EP1474658A1 true EP1474658A1 (en) 2004-11-10

Family

ID=27634901

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03706293A Withdrawn EP1474658A1 (en) 2002-02-12 2003-02-06 Flow straightener for a mass flow sensor

Country Status (5)

Country Link
US (1) US7516761B2 (en)
EP (1) EP1474658A1 (en)
JP (1) JP2005517918A (en)
DE (1) DE10205757B4 (en)
WO (1) WO2003069284A1 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8656772B2 (en) 2010-03-22 2014-02-25 Honeywell International Inc. Flow sensor with pressure output signal
US8397586B2 (en) * 2010-03-22 2013-03-19 Honeywell International Inc. Flow sensor assembly with porous insert
US8113046B2 (en) 2010-03-22 2012-02-14 Honeywell International Inc. Sensor assembly with hydrophobic filter
US8756990B2 (en) 2010-04-09 2014-06-24 Honeywell International Inc. Molded flow restrictor
US8418549B2 (en) 2011-01-31 2013-04-16 Honeywell International Inc. Flow sensor assembly with integral bypass channel
US9003877B2 (en) 2010-06-15 2015-04-14 Honeywell International Inc. Flow sensor assembly
US8695417B2 (en) 2011-01-31 2014-04-15 Honeywell International Inc. Flow sensor with enhanced flow range capability
US9052217B2 (en) 2012-11-09 2015-06-09 Honeywell International Inc. Variable scale sensor
WO2014172518A1 (en) 2013-04-17 2014-10-23 Cummins Filtration Ip, Inc. Air filtration cartridges having air flow rectification and methods of making air filtration cartridges having air flow rectification
US9952079B2 (en) 2015-07-15 2018-04-24 Honeywell International Inc. Flow sensor
US20180306216A1 (en) * 2017-04-24 2018-10-25 Sensus Spectrum, Llc Flow Conditioners for Use Normalizing Flow in Meters and Related Systems

Family Cites Families (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1545209A (en) * 1921-03-14 1925-07-07 Abram P Steckel Flow tube and valve therefor
GB1050879A (en) * 1965-01-28
US3405737A (en) * 1965-05-03 1968-10-15 Harper Laffie Duct device
US3645298A (en) * 1968-01-30 1972-02-29 Brunswick Corp Collimated hole flow control device
US3572391A (en) * 1969-07-10 1971-03-23 Hirsch Abraham A Flow uniformizing baffling for closed process vessels
DE2439144C3 (en) * 1974-08-14 1979-04-05 Siemens Ag, 1000 Berlin Und 8000 Muenchen Device for distributing flowing media from a flow cross-section to a different flow cross-section
US4202375A (en) * 1975-03-29 1980-05-13 Basf Aktiengesellschaft Process and apparatus for achieving a uniform flow profile
DE2934137C2 (en) * 1978-08-25 1985-05-15 Nissan Motor Co., Ltd., Yokohama, Kanagawa Flow measuring arrangement for measuring an amount of flow in a tubular channel
US4467829A (en) * 1982-04-29 1984-08-28 Myers Jerome J Turning vane rail
CH662634A5 (en) * 1984-05-16 1987-10-15 Sulzer Ag MEDIUM-LEADING LINE WITH AT LEAST ONE THROTTLE DEVICE.
JPS62141125A (en) 1985-12-09 1987-06-24 Nitto Boseki Co Ltd Method for infusibilization and carbonization treatment of pitch fiber and apparatus therefor
DE59010035D1 (en) * 1990-05-30 1996-02-15 Siemens Ag Flow transducer
US5009839A (en) * 1990-09-04 1991-04-23 B&W Fuel Company Nuclear fuel assembly bottom nozzle plate
US5482249A (en) * 1994-06-21 1996-01-09 Fisher Controls International, Inc. Fluid control valve with attenuator and dynamic seal
US5456288A (en) * 1994-09-19 1995-10-10 Oilfield Production Equipment Co., Inc. Simplex orifice fitting with self-centering plate carrier
US5529092A (en) * 1995-03-24 1996-06-25 Ductmate Industries, Inc. Air duct turning vane and rail assembly
US5750892A (en) * 1996-09-27 1998-05-12 Teledyne Industries, Inc. Laminar flow element with inboard sensor taps and coaxial laminar flow guides
DE19647081A1 (en) * 1996-11-14 1998-05-28 Bosch Gmbh Robert Device for measuring the mass of a flowing medium
DE19647086A1 (en) 1996-11-14 1998-05-28 Bosch Gmbh Robert Device for measuring the mass of a flowing medium
US5927339A (en) * 1997-08-18 1999-07-27 Eco Products, Inc. A California Corporation Air turning assembly with self-gripping vanes
DE19827375A1 (en) * 1998-06-19 1999-12-23 Bosch Gmbh Robert System for measuring mass of flowing medium
US6119730A (en) * 1998-12-21 2000-09-19 Mcmillan Company Precision laminar flow element for use in thermal mass flow sensors and flow controllers
US20050039809A1 (en) * 2003-08-21 2005-02-24 Speldrich Jamie W. Flow sensor with integrated delta P flow restrictor

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO03069284A1 *

Also Published As

Publication number Publication date
JP2005517918A (en) 2005-06-16
WO2003069284A1 (en) 2003-08-21
US7516761B2 (en) 2009-04-14
DE10205757B4 (en) 2005-04-21
DE10205757A1 (en) 2003-08-28
US20050087012A1 (en) 2005-04-28

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