EP1397590A1 - Device for determining at least one parameter of a medium flowing through a pipe, comprising a filter for receiving harmful substances in said pipe - Google Patents

Device for determining at least one parameter of a medium flowing through a pipe, comprising a filter for receiving harmful substances in said pipe

Info

Publication number
EP1397590A1
EP1397590A1 EP02742695A EP02742695A EP1397590A1 EP 1397590 A1 EP1397590 A1 EP 1397590A1 EP 02742695 A EP02742695 A EP 02742695A EP 02742695 A EP02742695 A EP 02742695A EP 1397590 A1 EP1397590 A1 EP 1397590A1
Authority
EP
European Patent Office
Prior art keywords
filter
line
parameter
pipe
determining
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Withdrawn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
EP02742695A
Other languages
German (de)
French (fr)
Inventor
Manfred Strohrmann
Thomas Alber
Manfred Fischer
Uwe Konzelmann
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP1397590A1 publication Critical patent/EP1397590A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/02—Air cleaners
    • F02M35/024—Air cleaners using filters, e.g. moistened
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10—Air intakes; Induction systems
    • F02M35/10242—Devices or means connected to or integrated into air intakes; Air intakes combined with other engine or vehicle parts
    • F02M35/10281—Means to remove, re-atomise or redistribute condensed fuel; Means to avoid fuel particles from separating from the mixture
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/02—Air cleaners
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/02—Air cleaners
    • F02M35/0201—Housings; Casings; Frame constructions; Lids; Manufacturing or assembling thereof
    • F02M35/021—Arrangements of air flow meters in or on air cleaner housings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M25/00—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture
    • F02M25/08—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture adding fuel vapours drawn from engine fuel reservoir

Definitions

  • the invention is based on a device for determining at least one parameter of a medium flowing in a line or on the use of an activated carbon filter in a device for determining at least one parameter of a medium flowing in a line according to the preamble of claim 1 and claim 10 ,
  • Known devices for determining at least one parameter of a medium flowing in a line have an air filter in the line upstream, which, however, only filters out liquid and solid particles.
  • the device according to the invention for determining at least one parameter of a medium flowing in a line or the use according to the invention of an activated carbon filter in a device for determining at least one parameter of a medium flowing in a line with the characterizing features of claims 1 and 10 has the advantage over the above, that pollutants cannot easily escape from the line into the atmosphere.
  • the filter can be arranged with a certain axial length on an inner wall of the line and be tubular.
  • the filter does not necessarily have to be arranged around the entire circumference of the line, but can also be arranged only in sections in the catching direction.
  • the absorption capacity of a filter for pollutants e.g. Hydrocarbon vapors depend, among other things, on from its surface that the medium flows past. Depending on the application, it can therefore be decided which variant makes sense.
  • a recess in which the filter is arranged is advantageously formed in a wall of the line.
  • the filter can also advantageously be designed as a web which, for example, has the length of a diameter of the line.
  • An activated carbon filter or a fleece has proven to be an advantageous filter.
  • Figure la shows a first embodiment of a device designed according to the invention
  • Figure lb shows a section in the radial direction along the line B-B in Figure
  • FIG. 1c shows a second exemplary embodiment of a device designed according to the invention
  • FIG. 1d shows a section in the radial direction along the line D-D in FIG. 1c
  • FIGS. 2a, 2b show a second exemplary embodiment of a
  • FIG. 1 a shows how a device 1 according to the invention is constructed, for example, with a line 3 in which the medium flows.
  • a housing 6 which in a wall 9 of the line 3 is inserted, for example, by a plug-in opening 12.
  • the wall 9 delimits a flow cross section of the line 3.
  • a measuring element 15 arranged in the housing 6 is used in the device 1, which, for example, determines the volume flow of the flowing medium as a parameter. Further parameters that can be measured are, for example, the pressure, the temperature, a concentration of a medium component or a
  • the housing 6 has a longitudinal axis 18 in the axial direction, which extends, for example, in the installation direction of the housing 6 in the line 3.
  • the direction of the flowing medium hereinafter referred to as the main flow direction, is indicated by corresponding arrows 21 in the drawing and runs there from left to right.
  • the housing 6 contains a bypass channel, not shown, which, for example, has an inlet opening 24 upstream of the housing 6. The medium flows into the bypass channel through the inlet opening 24 and flows past the measuring element 15 there.
  • the element 25 is, for example, a flow straightener and / or an element which deflects liquid or solid particles flowing in the medium in such a way that they do not get into the inlet opening 24 of the housing 6.
  • a filter 30 is arranged, for example, on an inner wall 28 of the line 3 and extends in the axial direction 21 for example upstream and downstream of the housing 6. Any other arrangement of the filter 30 with respect to the housing 6 is possible. If the line 3 has a circular cross section, for example, the filter 30 is, for example, in the form of a segment of a circle and is fastened to the inner wall 28 of the line 3.
  • At least one recess 33 is arranged in the wall 9 of the line 3, which receives the filter 30, so that the cross section of the line 3 upstream and downstream of the filter 30 relative to the device is not changed without filter 30.
  • the filter materials are e.g. Fleece, an activated carbon filter or other known filter types are available.
  • the filter can have the known chemisorptive substances that filter out the emissions from the line by chemisorption.
  • gaseous emissions can reach the atmosphere upstream through line 3.
  • the filter 30 is provided.
  • the gaseous emissions will absorbed by the filter 30, for example adsorbed or absorbed.
  • the emissions absorbed by the filter 30 ⁇ 5 flow back to the flowing past during operation of the internal combustion engine
  • Figure lb shows a section in the radial direction along the line B-B in Figure la.
  • the housing 6 and the element 25 have not been shown here for the sake of simplicity.
  • Two filters 30 are arranged in two depressions 33, the diameter of the line 3 not being reduced,
  • the recess 33 and the filter are designed in the shape of a circular segment in cross section.
  • filter 30 is tubular, for example circular, and is arranged along a circumferential line of line 3. Likewise, the depression 33 is in the circumferential direction of the line 3
  • FIG. 2a shows a second exemplary embodiment of the device 1 according to the invention.
  • the filter 30 is arranged in the line 3 as a web, for example a rectangular plate.
  • the web has, for example, the length of the diameter of the line 3 in the radial direction.
  • the filter 30 designed as a web can take up any position in the line 3 and also have different shapes from one, plate, such as tubular or oval and can for example also only be in the center of the line 3.
  • FIG. 2b shows a view of the device 1 according to the invention from FIG. 2a against the main flow direction 21.
  • the filter 30 is arranged, for example, downstream of the housing 6. He can also
  • the filter 10 can also be arranged upstream of the housing 6. It is also possible to attach the filter 30 to the housing 6, so that the filter 30 is installed with the installation of the housing 6 in the wall 9 of the line 3 and is possibly interchangeable, as shown in dashed lines in FIG.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Sampling And Sample Adjustment (AREA)
  • Filtering Materials (AREA)
  • Supplying Secondary Fuel Or The Like To Fuel, Air Or Fuel-Air Mixtures (AREA)

Abstract

According to prior art, a device for determining at least one parameter of a medium flowing through a line can not prevent harmful substances from the line from entering the atmosphere. The inventive device (1) has a filter (30) which receives the harmful substances, thereby preventing them from entering the atmosphere.

Description

Vorrichtung zur Bestimmung zumindest eines Parameters eines in einer Leitung strömenden Mediums mit einem Filter zur Aufnahme von Schadstoffen in der LeitungDevice for determining at least one parameter of a medium flowing in a line with a filter for taking up pollutants in the line
Stand der TechnikState of the art
Die Erfindung geht aus von einer Vorrichtung zur Bestimmung zumindest eines Parameters eines in einer Leitung strömenden Mediums bzw. von der Verwendung eines Aktivkohlefilters in einer Vorrichtung zur Bestimmung zumindest eines Parameters eines in einer Leitung strömenden Mediums nach der Gattung des Anspruchs 1 bzw. des Anspruchs 10.The invention is based on a device for determining at least one parameter of a medium flowing in a line or on the use of an activated carbon filter in a device for determining at least one parameter of a medium flowing in a line according to the preamble of claim 1 and claim 10 ,
Bekannte Vorrichtungen zur Bestimmung zumindest eines Parameters eines in einer Leitung strömenden Mediums weisen in der Leitung strömungsaufwärts einen Luftfilter auf, der jedoch nur Flüssigkeits- und Festkörperpartikel herausfiltert. Schadstoffe für die Atmospähre in Form von gasförmigen Emissionen, wie z.B. Kohlenwasserstoffdämpfe, aus einem Ansaugtrakt von Verbrennungsmotoren, die in dieKnown devices for determining at least one parameter of a medium flowing in a line have an air filter in the line upstream, which, however, only filters out liquid and solid particles. Pollutants for the atmosphere in the form of gaseous emissions, such as Hydrocarbon vapors from an intake tract of internal combustion engines that enter the
Leitung gelangen, können durch den Luftfilter nicht absorbiert werden. Vorteile der ErfindungLine can not be absorbed by the air filter. Advantages of the invention
Die erfindungsgemasse Vorrichtung zur Bestimmung zumindest eines Parameters eines in einer Leitung strömenden Mediums bzw. die erfindungsgemasse Verwendung eines Aktivkohlefilters in einer Vorrichtung zur Bestimmung zumindest eines Parameters eines in einer Leitung strömenden Mediums mit den kennzeichnenden Merkmalen des Anspruchs 1 bzw. 10 hat demgegenüber den Vorteil, dass auf einfache Art und Weise Schadstoffe nicht aus der Leitung in die Atmosphäre entweichen können.The device according to the invention for determining at least one parameter of a medium flowing in a line or the use according to the invention of an activated carbon filter in a device for determining at least one parameter of a medium flowing in a line with the characterizing features of claims 1 and 10 has the advantage over the above, that pollutants cannot easily escape from the line into the atmosphere.
Durch die in den abhängigen Ansprüchen 2 bis 9 aufgeführten Massnahmen sind vorteilhafte Weiterbildungen undThe measures listed in the dependent claims 2 to 9 are advantageous developments and
Verbesserungen der im Anspruch 1 genannten Vorrichtung möglich.Improvements of the device mentioned in claim 1 are possible.
Für die Anordnung eines Filters in der Leitung gibt es verschiedene vorteilhafte Varianten.There are various advantageous variants for the arrangement of a filter in the line.
Zum einen kann der Filter mit einer bestimmten axialen Länge an einer Innenwandung der Leitung angeordnet und rohrförmig ausgebildet sein. Der Filter muss aber nicht notwendigerweise um den ganzen Umfang der Leitung angeordnet sein, sondern kann auch nur abschnittsweise in ü fangrichtung angeordnet sein.On the one hand, the filter can be arranged with a certain axial length on an inner wall of the line and be tubular. However, the filter does not necessarily have to be arranged around the entire circumference of the line, but can also be arranged only in sections in the catching direction.
Die Aufnahmefähigkeit eines Filters für Schadstoffe, wie z.B. Kohlenwasserstoffdämpfe, hängt u.a. von seiner Fläche ab, an der das Medium vorbeiströmt. Je nach AnwendungsfaLl kann also entschieden werden, welche Variante sinnvoll ist.The absorption capacity of a filter for pollutants, e.g. Hydrocarbon vapors depend, among other things, on from its surface that the medium flows past. Depending on the application, it can therefore be decided which variant makes sense.
Um den Querschnitt der Leitung, in der das Medium strömt, im Vergleich zur Vorrichtung ohne Filter nicht zu verkleinern, ist vorteilhafterweise in einer Wandung der Leitung eine Vertiefung ausgebildet, in der der Filter angeordnet ist. Der Filter kann auch auf vorteilhafte Weise als Steg ausgebildet sein, der beispielsweise die Länge eines Durchmessers der Leitung aufweist.In order not to reduce the cross-section of the line in which the medium flows in comparison to the device without a filter, a recess in which the filter is arranged is advantageously formed in a wall of the line. The filter can also advantageously be designed as a web which, for example, has the length of a diameter of the line.
- 5- 5th
Als vorteilhafte Filter haben sich ein Aktivkohlefilter oder ein Vlies erwiesen.An activated carbon filter or a fleece has proven to be an advantageous filter.
0 Zeichnung0 drawing
Ausführungsbeispiele der Erfindung sind in der Zeichnung vereinfacht .dargestellt und in der nachfolgenden Beschreibung näher erläutert.Exemplary embodiments of the invention are simplified in the drawing, illustrated and explained in more detail in the following description.
1515
Es zeigenShow it
Figur la ein erstes Ausführungsbeispiel einer erfindungsgemäss ausgebildeten Vorrichtung, Figur lb einen Schnitt in radialer Richtung entlang der Linie B-B in FigurFigure la shows a first embodiment of a device designed according to the invention, Figure lb shows a section in the radial direction along the line B-B in Figure
20 la, Figur lc ein zweites Ausführungsbeispiel einer erfindungsgemäss ausgebildeten Vorrichtung, Figur Id einen Schnitt in radialer Richtung entlang der Linie D-D in Figur lc, und Figur 2a, 2b ein zweites Ausführungsbeispiel einer20 la, FIG. 1c shows a second exemplary embodiment of a device designed according to the invention, FIG. 1d shows a section in the radial direction along the line D-D in FIG. 1c, and FIGS. 2a, 2b show a second exemplary embodiment of a
25 erfindungsgemäss ausgebildeten Vorrichtung.25 device designed according to the invention.
Beschreibung der AusführungsbeispieleDescription of the embodiments
30 Die Figur la zeigt, wie eine erfindungsgemasse Vorrichtung 1 mit einer Leitung 3, in der das Medium strömt, bspw. aufgebaut ist.FIG. 1 a shows how a device 1 according to the invention is constructed, for example, with a line 3 in which the medium flows.
Teil der Vorrichtung 1 zur. Bestimmung zumindest eines Parameters des strömenden Mediums ist ein Gehäuse 6, das in eine Wandung 9 der Leitung 3 durch eine Einstecköffnung 12 beispielsweise steckbar eingeführt ist. Die Wandung 9 begrenzt einen Strömungsguerschnitt der Leitung 3. Beispielsweise wird in der Vorrichtung 1 ein im Gehäuse 6, angeordnetes Messelement 15 verwendet, das beispielsweise als Parameter den Volumenstrom des strömenden Mediums bestimmt. Weitere Parameter, die gemessen werden können, sind beispielsweise der Druck, die Temperatur, eine Konzentration eines Mediumbestandteils oder einePart of the device 1 for. Determining at least one parameter of the flowing medium is a housing 6, which in a wall 9 of the line 3 is inserted, for example, by a plug-in opening 12. The wall 9 delimits a flow cross section of the line 3. For example, a measuring element 15 arranged in the housing 6 is used in the device 1, which, for example, determines the volume flow of the flowing medium as a parameter. Further parameters that can be measured are, for example, the pressure, the temperature, a concentration of a medium component or a
Strömungsgeschwindigkeit, die mittels geeigneter Sensoren bestimmt werden.Flow velocity, which are determined using suitable sensors.
Das Gehäuse 6 hat eine Längsachse 18 in axialer Richtung, die beispielsweise in Einbaurichtung- des Gehäuses 6 in d e Leitung 3 verläuft.The housing 6 has a longitudinal axis 18 in the axial direction, which extends, for example, in the installation direction of the housing 6 in the line 3.
Die Richtung des strömenden Mediums, im folgenden als Hauptströmungsrichtung bezeichnet, ist durch entsprechende Pfeile 21 in der Zeichnung gekennzeichnet und verläuft dort von links nach rechts. Das Gehäuse 6 beinhaltet einen nicht dargestellten Bypasskanal, der beispielsweise strömungsaufwärts am Gehäuse 6 eine Eintrittsöffnung 24 aufweist. Durch die Eintrittsöffnung 24 strömt das Medium in. den Bypasskanal ein und strömt dort am Messelement 15 vorbei .The direction of the flowing medium, hereinafter referred to as the main flow direction, is indicated by corresponding arrows 21 in the drawing and runs there from left to right. The housing 6 contains a bypass channel, not shown, which, for example, has an inlet opening 24 upstream of the housing 6. The medium flows into the bypass channel through the inlet opening 24 and flows past the measuring element 15 there.
Strömungsaufwärts des Gehäuses 6 ist in der Leitung 3 beispielsweise zumindest ein Element zur Strömungsbeeinflussung 25 vorhanden. Das Element 25 ist beispielsweise ein Strömungsgleichrichter und/oder ein Element, das in dem Medium strömende Flüssigkeits- oder Festkörperpartikel so umlenkt, dass sie nicht in die Eintrittsöffnung 24 des Gehäuses 6 gelangen.Upstream of the housing 6 there is, for example, at least one element for influencing the flow 25 in the line 3. The element 25 is, for example, a flow straightener and / or an element which deflects liquid or solid particles flowing in the medium in such a way that they do not get into the inlet opening 24 of the housing 6.
Ein Filter 30 ist bspw.. an einer Innenwandung 28 der Leitung 3 angeordnet und erstreckt sich in axialer Richtung 21 beispielsweise strömungsaufwärts und strömungsabwärts des Gehäuses 6. Jede andere Anordnung des Filters 30 bezüglich des Gehäuses 6 ist möglich. Wenn die Leitung 3 beispielsweise einen kreisförmigen Querschnitt hat, ist der Filter 30 beispielsweise kreissegmentförmig ausgebildet und an der Innenwandung 28 der Leitung 3 befestigt.A filter 30 is arranged, for example, on an inner wall 28 of the line 3 and extends in the axial direction 21 for example upstream and downstream of the housing 6. Any other arrangement of the filter 30 with respect to the housing 6 is possible. If the line 3 has a circular cross section, for example, the filter 30 is, for example, in the form of a segment of a circle and is fastened to the inner wall 28 of the line 3.
Soll der Querschnitt der Leitung 3 durch den Filter nicht verkleinert werden, so ist in der Wandung 9 der Leitung 3 zumindest eine Vertiefung 33 angeordnet, die den Filter 30 aufnimmt, so dass der Querschnitt der Leitung 3 strömungsaufwärts und strömungsabwärts des Filters 30 gegenüber der Vorrichtung ohne Filter 30 nicht verändert ist.If the cross section of the line 3 through the filter is not to be reduced, at least one recess 33 is arranged in the wall 9 of the line 3, which receives the filter 30, so that the cross section of the line 3 upstream and downstream of the filter 30 relative to the device is not changed without filter 30.
Als Filtermaterialien stehen z.B. Vlies, ein Aktivkohlefilter oder weitere bekannte Filtertypen zur Verfügung. Der Filter kann je nach bekannten Emissionen die dafür bekannten chemisorptiven Substanzen aufweisen, die die Emissionen aus der Leitung durch Chemisorption herausfiltern.The filter materials are e.g. Fleece, an activated carbon filter or other known filter types are available. Depending on the known emissions, the filter can have the known chemisorptive substances that filter out the emissions from the line by chemisorption.
Während des Betriebs einer Verbrennungsmaschine eines Kraftfahrzeugs können z.B. Kohlenwasserstoffdämpfe eines Brennstoffs in einen Ansaugtrakt, wobei die Leitung 3 einDuring the operation of an internal combustion engine of a motor vehicle, e.g. Hydrocarbon vapors of a fuel in an intake tract, the line 3 a
Teil dieses Ansaugtrakts ist, gelangen. Während des Betriebs der Verbrennungsmaschine werden die verdampften Kohlenwasserstoffe durch das strömende Medium mit in die Verbrennungsmaschine gerissen und dort verbrannt, so dass keine schädlichen Emissionen entstehen können.Is part of this intake tract. During the operation of the internal combustion engine, the evaporated hydrocarbons are entrained into the internal combustion engine by the flowing medium and burned there, so that no harmful emissions can arise.
Wenn die Verbrennungsmaschine jedoch abgestellt ist, können gasförmige Emissionen strömungsaufwärts durch die Leitung 3 in die Atmosphäre gelangen. Um diese zu verhindern, ist der Filter 30 vorgesehen. Die gasförmigen Emissionen werden durch den Filter 30 aufgenommen, beispielsweise adsorbiert oder absorbiert.However, when the internal combustion engine is switched off, gaseous emissions can reach the atmosphere upstream through line 3. To prevent this, the filter 30 is provided. The gaseous emissions will absorbed by the filter 30, for example adsorbed or absorbed.
Während des Betriebs der Verbrennungsmaschine werden je nach Filterart, bspw. beim Aktivkohlefilter, die vom Filter 30 ■ 5 aufgenommenen Emissionen wieder an das vorbeiströmendeDepending on the type of filter, for example in the case of an activated carbon filter, the emissions absorbed by the filter 30 ■ 5 flow back to the flowing past during operation of the internal combustion engine
Medium abgegeben und in der Verbrennungsmaschine verbrannt, so dass der Filter 30 wieder ganz oder zumindest teilweise gereinigt wird.Medium released and burned in the internal combustion engine, so that the filter 30 is completely or at least partially cleaned again.
10. Figur lb zeigt einen Schnitt in radialer Richtung entlang der Linie B-B in Figur la. Das Gehäuse 6 und das Element 25 wurden hier zur Vereinfachung nicht dargestellt. Zwei Filter 3O sind in zwei Vertiefungen 33 angeordnet, wobei der Durchmesser der Leitung 3 nicht verringert wurde,10. Figure lb shows a section in the radial direction along the line B-B in Figure la. The housing 6 and the element 25 have not been shown here for the sake of simplicity. Two filters 30 are arranged in two depressions 33, the diameter of the line 3 not being reduced,
15 d.h. die Leitung 3 weist an dieser Stelle keinen Absatz auf. Die Vertiefung 33 und der Filter sind im Querschnittt kreisringsegmentförmig ausgebildet .15 i.e. line 3 has no paragraph at this point. The recess 33 and the filter are designed in the shape of a circular segment in cross section.
Figur lc zeigt ein weiteres Ausführungsbeispiel derFigure lc shows another embodiment of the
20 erfindurigsgemässen Vorrichtung 1.20 device 1 according to the invention.
Im Vergleich zur Figur la ist der Filter 30 rohrförmig, bspw. kreisringförmig, ausgebildet und entlang einer Umfangslinie der Leitung 3 angeordnet. Ebenso ist die Vertiefung 33 in Umfangsrichtung der Leitung 3In comparison to FIG. 1 a, filter 30 is tubular, for example circular, and is arranged along a circumferential line of line 3. Likewise, the depression 33 is in the circumferential direction of the line 3
25 kreisringförmig ausgebildet. Dies zeigt Figur ld in einein25 annular. Figure 1d shows this in one
Schnitt in radialer Richtung entlang der Linie D-D in Figur lc.Section in the radial direction along the line D-D in Figure lc.
30 Figur 2a zeigt ein zweites Ausführungsbeispiel der erfindungsgemässen Vorrichtung 1.FIG. 2a shows a second exemplary embodiment of the device 1 according to the invention.
Der Filter 30 ist in diesem Beispiel als Steg bspw. rechteckige Platte in der Leitung 3 angeordnet. Der Steg hat in Radialrichtung bspw. die Länge des Durchmessers der 35 Leitung 3. Dabei kann der als Steg ausgebildete Filter 30 jede Stellung in der Leitung 3 einnehmen und auch von einer , Platte, abweichende Formen haben, wie rohrförmig oder oval und kann dabei bspw. auch nur im Zentrum der Leitung 3 liegen.In this example, the filter 30 is arranged in the line 3 as a web, for example a rectangular plate. The web has, for example, the length of the diameter of the line 3 in the radial direction. The filter 30 designed as a web can take up any position in the line 3 and also have different shapes from one, plate, such as tubular or oval and can for example also only be in the center of the line 3.
"5"5
Figur 2b zeigt eine Ansicht auf die erfindungsgemasse Vorrichtung 1 der Figur 2a entgegen der Hauptströmungsrichtung 21. Der Filter 30 ist bspw. strömungsabwärts des Gehäuses 6 angeordnet. Er kann ebensoFIG. 2b shows a view of the device 1 according to the invention from FIG. 2a against the main flow direction 21. The filter 30 is arranged, for example, downstream of the housing 6. He can also
10 auch strömungsaufwärts des Gehäuses 6 angeordnet, sein. Ebenso ist es möglich, den Filter 30 am Gehäuse 6 zu befestigen, so dass der Filter 30 mit dem Einbau des Gehäuses 6 in die Wandung 9 der Leitung 3 eingebaut wird und eventuell austauschbar ist, wie in Figur 2a- gestrichelt am10 can also be arranged upstream of the housing 6. It is also possible to attach the filter 30 to the housing 6, so that the filter 30 is installed with the installation of the housing 6 in the wall 9 of the line 3 and is possibly interchangeable, as shown in dashed lines in FIG
15 stro abwärtigen Teil des Gehäuses 6 angedeutet ist. 15 stro down part of the housing 6 is indicated.

Claims

- 510 Ansprüche - 510 claims
1. Vorrichtung zur Bestimmung zumindest eines Parameters eines in einer Leitung strömenden Mediums, insbesondere der Ansaugluftmasse einer Brennkraftmaschine, 15 mit zumindest einem vom strömenden Medium umströmten Messelement (15)1. Device for determining at least one parameter of a medium flowing in a line, in particular the intake air mass of an internal combustion engine, 15 with at least one measuring element (15) around which the flowing medium flows.
dadurch gekennzeichnet, dasscharacterized in that
20 in der Leitung (3) zumindest ein Filter (30) angeordnet ist, der für die Atmospähre schädliche Stoffe in der Leitung (3) aufnimmt .20 in the line (3) at least one filter (30) is arranged, which absorbs substances harmful to the atmosphere in the line (3).
25 2.Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass25 2.Device according to claim 1, characterized in that
der Filter (30) an der Innenwandung (28) der Leitung (3 angeordnet ist . 30 the filter (30) is arranged on the inner wall (28) of the line (3. 30
3. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass3. Device according to claim 1, characterized in that
die Leitung (3) zumindest eine Vertiefung (33) aufweist, in ■5 der der Filter (30) angeordnet ist.the line (3) has at least one recess (33) is arranged in ■ 5 of the filter (30).
4. Vorrichtung nach Anspruch 3 , dadurch gekennzeichnet, dass 0 die Vertiefung (33) so ausgebildet ist, dass der Querschnitt der Leitung (3) strömungsaufwärts und strömungsabwärts des Filters (30) denselben 'Querschnitt aufweist wie im Bereich des Filters (30) . 54. The device according to claim 3, characterized in that the recess (33) is designed such that the cross section of the line (3) upstream and downstream of the filter (30) has the same cross section as in the region of the filter (30). 5
5. Vorrichtung nach Anspruch 1 oder 2 , dadurch gekennzeichnet, dass5. The device according to claim 1 or 2, characterized in that
0 der Filter (30) rohrförmig ausgebildet ist.0 the filter (30) is tubular.
6. Vorrichtung nach Ansprμch 1 oder 2 , dadurch gekennzeichnet, dass 5 der Filter (30) segmentförmig ausgebildet ist.6. Apparatus according to claim 1 or 2, characterized in that 5 of the filter (30) is segment-shaped.
7. Vorrichtung nach Anspruch 1, 0 dadurch gekennzeichnet, dass7. The device according to claim 1, 0 characterized in that
der Filter (30) rechteckförmig ausgebildet ist. the filter (30) is rectangular.
Vorrichtung nach einem oder mehreren der vorherigen Ansprüche, dadurch gekennzeichnet, dass Device according to one or more of the preceding claims, characterized in that
■ 5 der Filter (30) ein Aktivkohlefilter ist. ■ 5 the filter (30) is an activated carbon filter.
9. orrichtung nach einem oder mehreren der vorherigen Ansprüche, 0 dadurch gekennzeichnet, dass9. device according to one or more of the preceding claims, 0 characterized in that
der Filter (30) ein Vlies ist.the filter (30) is a fleece.
5 10'. Verwendung eines Aktivkohlefilters (30) in einer5 10 ' . Use of an activated carbon filter (30) in a
Vorrichtung (1) zur Bestimmung zumindest eines Parameters eines in einer Leitung (3) strömenden Mediums, insbesondere der Ansaugluftmasse einer Brennkraftmaschine, mit zumindest einem vom strömenden Medium umströmten 0 Messelement (15) , der in der Leitung (3) angeordnet ist, zur Aufnahme von für die Atmosphäre schädlichen Stoffen. Device (1) for determining at least one parameter of a medium flowing in a line (3), in particular the intake air mass of an internal combustion engine, with at least one measuring element (15) around which the flowing medium flows and which is arranged in the line (3) for receiving of substances harmful to the atmosphere.
EP02742695A 2001-06-01 2002-04-26 Device for determining at least one parameter of a medium flowing through a pipe, comprising a filter for receiving harmful substances in said pipe Withdrawn EP1397590A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10126676 2001-06-01
DE10126676A DE10126676A1 (en) 2001-06-01 2001-06-01 Device for determining at least one parameter of medium flowing in pipe has at least one filter installed in pipe to absorb substances in pipe which are harmful to atmosphere
PCT/DE2002/001539 WO2002099267A1 (en) 2001-06-01 2002-04-26 Device for determining at least one parameter of a medium flowing through a pipe, comprising a filter for receiving harmful substances in said pipe

Publications (1)

Publication Number Publication Date
EP1397590A1 true EP1397590A1 (en) 2004-03-17

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Application Number Title Priority Date Filing Date
EP02742695A Withdrawn EP1397590A1 (en) 2001-06-01 2002-04-26 Device for determining at least one parameter of a medium flowing through a pipe, comprising a filter for receiving harmful substances in said pipe

Country Status (6)

Country Link
US (1) US20040003650A1 (en)
EP (1) EP1397590A1 (en)
JP (1) JP2004521240A (en)
KR (1) KR20030065458A (en)
DE (1) DE10126676A1 (en)
WO (1) WO2002099267A1 (en)

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Also Published As

Publication number Publication date
DE10126676A1 (en) 2002-12-05
KR20030065458A (en) 2003-08-06
US20040003650A1 (en) 2004-01-08
JP2004521240A (en) 2004-07-15
WO2002099267A1 (en) 2002-12-12

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