EP1835166A2 - Air supply unit for an air filter body - Google Patents

Air supply unit for an air filter body Download PDF

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Publication number
EP1835166A2
EP1835166A2 EP07101376A EP07101376A EP1835166A2 EP 1835166 A2 EP1835166 A2 EP 1835166A2 EP 07101376 A EP07101376 A EP 07101376A EP 07101376 A EP07101376 A EP 07101376A EP 1835166 A2 EP1835166 A2 EP 1835166A2
Authority
EP
European Patent Office
Prior art keywords
air
filter housing
air filter
connection
connection unit
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Withdrawn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
EP07101376A
Other languages
German (de)
French (fr)
Other versions
EP1835166A3 (en
Inventor
Klemens Dworatzek
Sascha Bauer
Jochen Linhart
Michael Fasold
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.)
Mann and Hummel GmbH
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Mann and Hummel GmbH
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Filing date
Publication date
Application filed by Mann and Hummel GmbH filed Critical Mann and Hummel GmbH
Publication of EP1835166A2 publication Critical patent/EP1835166A2/en
Publication of EP1835166A3 publication Critical patent/EP1835166A3/en
Withdrawn legal-status Critical Current

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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
    • F02M35/10—Air intakes; Induction systems
    • F02M35/10314—Materials for intake systems
    • F02M35/10321—Plastics; Composites; Rubbers
    • 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
    • F02M35/08—Air cleaners with means for removing dust, particles or liquids from cleaners; with means for indicating clogging; with by-pass means; Regeneration of cleaners
    • F02M35/09—Clogging indicators ; Diagnosis or testing of 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
    • F02M35/10—Air intakes; Induction systems
    • F02M35/10091—Air intakes; Induction systems characterised by details of intake ducts: shapes; connections; arrangements
    • F02M35/10137—Flexible ducts, e.g. bellows or hoses
    • 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
    • F02M35/10091—Air intakes; Induction systems characterised by details of intake ducts: shapes; connections; arrangements
    • F02M35/10144—Connections of intake ducts to each other or to another device
    • 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
    • F02M35/10373—Sensors for intake systems
    • F02M35/1038—Sensors for intake systems for temperature or pressure

Definitions

  • the invention relates to an air connection unit for an air filter housing having at least one nozzle, in which at least one maintenance interval display or a maintenance switch connection is integrated and which is rotatably mounted in a recess in the air filter housing, and with an adjoining the nozzle air line element.
  • Air filters are supplied via air ducts, e.g. Pipes or hoses connected to the intake system.
  • the disadvantage here is that integrated maintenance switch terminals are always in the same, fixed position. Also results in the use of angled ports always a fixed relative nozzle position between raw air and clean air.
  • corrugated pipes are corrugated pipes as well as pipes with a corrugated geometry which allows bending without buckling or constriction of the pipe jacket.
  • the position of the maintenance switch connection can be freely selected.
  • the position of the clean air connection can be selected independently of this. As a result, the position, length and angle of the connection are freely selectable.
  • the air duct element or parts thereof are a flexible wiring even in limited space, e.g. in an engine compartment, possible.
  • the system is insensitive to possible tolerances of the distances to the components to be connected or their location. Regardless of whether the position or the distance varies, the movable connecting piece can be connected to the suction system with little effort.
  • the angle section formed as a corrugated tube of the air duct element should include an angle of 45 ° to 150 °, in particular 90 ° in the force-free state. Due to the flexibility of the corrugated pipe area most simple deflections of the air duct element can be realized.
  • the air duct element preferably terminates in a connection collar. This is an end-side paragraph, around which a hose clamp can be placed, with which the connection collar can be pressed firmly onto a connecting piece.
  • the configurations described in this way apply in the initial state without force.
  • the corrugated pipe sections can be either permanently bent from this or bent back resiliently in order to adapt to the provided conduction path in an engine compartment.
  • an additional connecting element for fastening the air duct element at an additional point in the engine compartment can be provided on the connecting collar located between the angle sections.
  • a configuration can be manufactured and delivered, which allows multiple deflections, but can also be cut off directly behind the central connection collar as needed, if only a simple deflection is needed.
  • the additional cost of the additional angle portion are so small in a blow molded plastic part that it may be economically advantageous to offer this section from the outset to the customer, as to produce two different types of air connection units, distribute and stock for spare parts needs.
  • the air duct element does not need for adaptation be severed more. It can rather be subtracted the unneeded second angle section.
  • FIG 1 shows sections of an air filter housing 20 with an air feed port 22, which is shown in this figure as well as in the following figures 2 and 3, to indicate that the position of the air filter housing 20 in all figures is unchanged.
  • it is a cylindrical air filter housing for a round filter, which has a central recess on a receiving flange 21 on the clean air side, to which an air connection unit can be connected to the air filter housing with other modules in an engine compartment, for example with a suction module an internal combustion engine, to connect.
  • a nozzle 11 is inserted in the receiving flange 21, a nozzle 11 is inserted. A part of the nozzle 11 is in the receiving flange 21st or received in the air filter housing 20 and there so locked or secured in any other way, that although a twisting is possible, however, axial tensile forces can be absorbed at the nozzle.
  • a maintenance switch terminal 12 is arranged in the protruding part of the nozzle 11. This is a branch of trained within the nozzle
  • Air line to be able to lead a thin hose line to a more distant pressure sensor. It is also possible to arrange a suitable sensor for measuring a pressure drop due to contamination of the air filter directly on the nozzle 11.
  • the connecting piece 11 is adjoined by an angle section 14 which is deformable via a fold geometry so that the center axis at the end, which is designed as a connection collar 15 for receiving a hose clamp, is at an angle of approximately 45 ° relative to the center axis of the connection piece 11 ° can be employed.
  • Figure 2 shows the same embodiment of the air connection unit 10, in which the nozzle 11 is rotated relative to the position in Fig. 1 so that the maintenance switch terminal 12 is above.
  • the independent of the position of the nozzle 11 twistable air duct element is bent with its connection collar 15 by 90 ° downwards.
  • FIG. 3a shows a second embodiment of an air connection unit 10 ', in which the air duct element comprises two angle sections 14', 16 ', which are connected to one another at a central connection collar 15'. There, an additional attachment can be attached. The connection with further modules takes place at the connection collar 17 'at the end of the second angle section 16'.
  • the second angle section 16 ' is not needed, it can be separated along the dot-dash line in Fig. 3a.
  • connection collar 15 ' is like the end-side connection collar 17' formed and can therefore be connected via the same fasteners with further leading components.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)

Abstract

The air connection unit (10) for an air filter housing useful in internal combustion engine, comprises a connecting piece (11), in which a maintenance rate display or maintenance switch connection (12) is integrated and which is revolvably stored in a recess in the air filter housing. The connecting piece is connected to airline element, which is formed as a corrugated pipe (14) over a part of its length and ends in a connecting collar (15). An angle section having 30-40[deg], is formed as corrugated pipe and encloses the airline element in the force-free condition. The air connection unit (10) for an air filter housing useful in internal combustion engine, comprises a connecting piece (11), in which a maintenance rate display or maintenance switch connection (12) is integrated and which is revolvably stored in a recess in the air filter housing. The connecting piece is connected to airline element, which is formed as a corrugated pipe (14) over a part of its length and ends in a connecting collar (15). An angle section having 30-40[deg], is formed as corrugated pipe and encloses the airline element in the force-free condition. The airline element is formed as corrugated pipe in two angle sections and exhibits S-shaped configuration. The airline element is formed between the angle sections and as a connecting collar in end-lateral manner. The angle sections are air tightly connected with one another via a muff connection. An independent claim is included for air filter housing.

Description

Die Erfindung betrifft eine Luftanschlusseinheit für ein Luftfiltergehäuse mit wenigstens einem Stutzen, in den wenigstens eine Wartungsintervallanzeige oder ein Wartungsschalteranschluss integriert ist und der in einer Ausnehmung im Luftfiltergehäuse drehbar zu lagern ist, und mit einem sich an den Stutzen anschließenden Luftleitungselement.The invention relates to an air connection unit for an air filter housing having at least one nozzle, in which at least one maintenance interval display or a maintenance switch connection is integrated and which is rotatably mounted in a recess in the air filter housing, and with an adjoining the nozzle air line element.

Luftfilter werden über Luftführungsteile, z.B. Rohre oder Schläuche, mit dem Ansaugsystem verbunden. Nachteilig hierbei ist, dass darin integrierte Wartungsschalteranschlüsse stets in der gleichen, fixen Position sind. Auch ergibt sich bei der Verwendung von abgewinkelten Anschlüssen immer eine feste relative Stutzenposition zwischen Rohluft und Reinluft. Da es aber je nach Motorraum und Einbausituation erforderlich ist, die Lage der Stutzen und der Wartungsschalt.eranschlüsse zu variieren, müssen für jeden Fahrzeugtypen individuell angepasste Bauteile bereitgestellt werden.Air filters are supplied via air ducts, e.g. Pipes or hoses connected to the intake system. The disadvantage here is that integrated maintenance switch terminals are always in the same, fixed position. Also results in the use of angled ports always a fixed relative nozzle position between raw air and clean air. However, depending on the engine compartment and installation situation, it may be necessary to vary the position of the ports and the service switch ports, so customized components must be provided for each vehicle type.

Aus der US 5,882,367 ist eine gattungsgemäße Luftanschlusseinheit mit einem drehbar zu lagernder Winkelstutzen für ein Luftfiltergehäuse bekannt, in welchen ein Wartungsschalteranschluss integriert ist. Allerdings ist hierbei die Position des Wartungsschalteranschlusses abhängig von der Lage des Anschlussstutzens. Zudem wird für jeden benötigten Winkel ein angepasster Stutzen benötigt. Hinzu kommen noch technisch bedingte Toleranzen bezüglich der Lage und Distanz der Anschlussgeometrie sowie eventuell vorhandener Motoranbauteile in unmittelbarer Nähe. Bei nicht korrekter Einbaulage und/oder zu großen Toleranzen ergeben sich bei der Montage sehr große Kräfte, die die Bauteile über die gesamte Lebensdauer belasten können.From the US 5,882,367 is a generic Luftanschlusseinheit with a rotatably mounted angle bracket for an air filter housing in which a maintenance switch connection is integrated. However, the position of the maintenance switch connection depends on the position of the connection piece. In addition, a customized nozzle is required for every angle required. In addition, there are technical tolerances with respect to the position and distance of the connection geometry and any existing engine attachments in the immediate vicinity. If the mounting position is not correct and / or the tolerances are too great, very large forces occur during assembly, which can stress the components over the entire service life.

Es gilt somit die Aufgabe zu lösen, das Ansaugsystem eines Verbrennungsmotors so mit dem Luftfilter verbinden, dass Länge und Winkel des Reinluftanschlusses variiert werden kann, und die Lage des Wartungsschalteranschlusses variieren zu können.It is therefore the task to be solved connect the intake system of an internal combustion engine so with the air filter that length and angle of the clean air connection can be varied, and to vary the position of the maintenance switch connection.

Gelöst werden kann die Aufgabe durch eine Luftanschlusseinheit mit den Merkmalen des Anspruchs 1.The object can be achieved by an air connection unit with the features of claim 1.

Als "Wellrohr" werden im Sinne der Erfindung gewellte Rohre wie auch Rohre mit einer Faltengeometrie bezeichnet, die Biegungen erlaubt, ohne dass es zum Einknicken bzw. Einschnüren des Rohrmantels kommt.For the purposes of the invention, "corrugated pipes" are corrugated pipes as well as pipes with a corrugated geometry which allows bending without buckling or constriction of the pipe jacket.

Durch die Drehbarkeit des Stutzens kann die Lage des Wartungsschalteranschlusses frei gewählt werden. Die Position des Reinluftanschlusses kann unabhängig hiervon gewählt werden. Hierdurch sind Lage, Länge und Winkel des Anschlusses frei wählbar.Due to the rotatability of the nozzle, the position of the maintenance switch connection can be freely selected. The position of the clean air connection can be selected independently of this. As a result, the position, length and angle of the connection are freely selectable.

Durch die Ausbildung des Luftleitungselement bzw. Teilen davon als Wellrohr ist eine flexible Leitungsverlegung auch bei begrenzten Platzverhältnissen, z.B. in einem Motorraum, möglich.By forming the air duct element or parts thereof as a corrugated pipe is a flexible wiring even in limited space, e.g. in an engine compartment, possible.

Zudem ist das System unempfindlich bezüglich eventueller Toleranzen der Distanzen zu den anzuschließenden Bauteilen oder deren Lage. Gleichgültig ob die Position oder der Abstand variiert, lässt sich der bewegliche Stutzen mit wenig Kraftaufwand an das Saugsystem anschließen. DieIn addition, the system is insensitive to possible tolerances of the distances to the components to be connected or their location. Regardless of whether the position or the distance varies, the movable connecting piece can be connected to the suction system with little effort. The

Rückstellkräfte auf die Bauteile sind hierbei auch auf Dauer nur gering, wenn das Wellrohr elastisch verformt wird oder verschwinden ganz, wenn bei einer Knickfaltengeometrie eine bestimmte Konfiguration eingestellt ist.Restoring forces on the components are in this case even in the long run only small if the corrugated tube is elastically deformed or disappear completely when a certain configuration is set in a kink fold geometry.

Der als Wellrohr ausgebildete Winkelabschnitt des Luftleitungselements sollte im kräftefreien Zustand einen Winkel von 45° bis 150°, insbesondere 90°, einschließen. Aufgrund der Flexibilität des Wellrohrbereichs können die meisten einfachen Umlenkungen des Luftleitungselements realisiert werden.The angle section formed as a corrugated tube of the air duct element should include an angle of 45 ° to 150 °, in particular 90 ° in the force-free state. Due to the flexibility of the corrugated pipe area most simple deflections of the air duct element can be realized.

Das Luftleitungselement endet vorzugsweise in einem Anschlussbund. Hierbei handelt es sich um einen endseitigen Absatz, um den einen Schlauchschelle gelegt werden kann, mit der der Anschlussbund fest auf einen Anschlussstutzen angepresst werden kann.The air duct element preferably terminates in a connection collar. This is an end-side paragraph, around which a hose clamp can be placed, with which the connection collar can be pressed firmly onto a connecting piece.

Um zwei Umlenkungen am Luftleitungselement zu realisieren, solle dieses zwei Winkelabschnitte als Wellrohr ausgebildet haben und eine S-förmige Konfiguration aufweisen, das heißt, die gekrümmten Abschnitte liegen zwar in einer Ebene, die Ein- und Auslassöffnung zeigen aber in verschiedene, insbesondere entgegen gesetzte Richtungen.In order to realize two deflections on the air duct element, this should have two angular sections formed as a corrugated pipe and having an S-shaped configuration, that is, the curved portions are indeed in a plane, but the inlet and outlet openings in different, in particular opposite directions ,

Durch Aneinanderreihen mehrerer Wellrohrabschnitte lässt sich das Prinzip auf nahezu beliebig viele Umlenkungen erweitern.By juxtaposing several sections of corrugated pipe, the principle can be extended to almost any number of deflections.

Die so beschriebenen Konfigurationen gelten jeweils im kräftefreien Ausgangszustand. Die Wellrohrabschnitte können davon ausgehend entweder dauerhaft verbogen werden oder federnd zurück gebogen werden, um sie an den vorgesehen Leitungsweg in einem Motorraum anzupassen.The configurations described in this way apply in the initial state without force. The corrugated pipe sections can be either permanently bent from this or bent back resiliently in order to adapt to the provided conduction path in an engine compartment.

Besonders vorteilhaft ist es, das Luftleitungselement zwischen den Winkelabschnitten und auch endseitig mit einem Anschlussbund auszubilden. Einerseits kann an dem zwischen den Winkelabschnitten liegenden Anschlussbund ein zusätzliches Verbindungselement für die Befestigung des Luftleitungselements an einem zusätzlichen Punkt im Motorraum vorgesehen sein. Außerdem kann bei dieser Ausführungsform eine Konfiguration hergestellt und ausgeliefert werden, die mehrfache Umlenkungen erlaubt, je nach Bedarf aber auch direkt hinter dem mittleren Anschlussbund abgeschnitten werden kann, sofern nur eine einfache Umlenkung benötigt wird. Die Mehrkosten des zusätzlichen Winkelabschnitts sind bei einem blasgeformten Kunststoffteil so gering, dass es wirtschaftlich günstiger sein kann, diesen Abschnitt von vornherein dem Kunden mit anzubieten, als zwei verschiedene Typen von Luftanschlusseinheiten herzustellen, zu vertreiben und für den Ersatzteilbedarf vorrätig zu halten.It is particularly advantageous to form the air duct element between the angle sections and also at the end with a connection collar. On the one hand, an additional connecting element for fastening the air duct element at an additional point in the engine compartment can be provided on the connecting collar located between the angle sections. In addition, in this embodiment, a configuration can be manufactured and delivered, which allows multiple deflections, but can also be cut off directly behind the central connection collar as needed, if only a simple deflection is needed. The additional cost of the additional angle portion are so small in a blow molded plastic part that it may be economically advantageous to offer this section from the outset to the customer, as to produce two different types of air connection units, distribute and stock for spare parts needs.

Es kann auch vorgesehen sein, die Winkelabschnitte über eine Muffenverbindung luftdicht miteinander zu verbinden. Damit braucht das Luftleitungselement zur Anpassung nicht mehr durchtrennt werden. Es kann vielmehr der nicht benötigte zweite Winkelabschnitt abgezogen werden.It can also be provided to connect the angle sections via a sleeve connection airtight with each other. Thus, the air duct element does not need for adaptation be severed more. It can rather be subtracted the unneeded second angle section.

Die Erfindung wird nachfolgend anhand eines Ausführungsbeispiels mit Bezug auf die Zeichnung näher erläutert. Die Figuren zeigen im Einzelnen:

Fig. 1
ein Luftfiltergehäuse mit einer ersten Luftanschlusseinheit in perspektivischer Ansicht;
Fig. 2
das Luftfiltergehäuse mit der ersten Luftanschlusseinheit in seitlicher Ansicht; und
Fig. 3a, 3b
das Luftfiltergehäuse mit einer zweiten Luftanschlusseinheit, jeweils in seitlicher Ansicht.
The invention will be explained in more detail using an exemplary embodiment with reference to the drawing. The figures show in detail:
Fig. 1
an air filter housing with a first air connection unit in a perspective view;
Fig. 2
the air filter housing with the first air connection unit in a side view; and
Fig. 3a, 3b
the air filter housing with a second air connection unit, each in a lateral view.

Figur 1 zeigt Ausschnitte eines Luftfiltergehäuses 20 mit einem Luftzuführstutzen 22, der in dieser Abbildung wie auch in den nachfolgenden Figuren 2 und 3 dargestellt ist, um zu kennzeichnen, dass die Lage des Luftfiltergehäuses 20 in allen Abbildungen unverändert ist.Figure 1 shows sections of an air filter housing 20 with an air feed port 22, which is shown in this figure as well as in the following figures 2 and 3, to indicate that the position of the air filter housing 20 in all figures is unchanged.

Bei dem dargestellten Ausführungsbeispiel handelt es sich um ein zylindrisches Luftfiltergehäuse für einen Rundfilter, das an einem Aufnahmeflansch 21 auf der Reinluftseite eine zentrale Ausnehmung aufweist, an die eine Luftanschlusseinheit angeschlossen werden kann, um das Luftfiltergehäuse mit weiteren Modulen in einem Motorraum, beispielsweise mit einem Ansaugmodul einer Brennkraftmaschine, zu verbinden.In the illustrated embodiment, it is a cylindrical air filter housing for a round filter, which has a central recess on a receiving flange 21 on the clean air side, to which an air connection unit can be connected to the air filter housing with other modules in an engine compartment, for example with a suction module an internal combustion engine, to connect.

In den Aufnahmeflansch 21 ist ein Stutzen 11 eingeschoben. Ein Teil des Stutzens 11 ist im Aufnahmeflansch 21 bzw. im Luftfiltergehäuse 20 aufgenommen und dort so eingerastet oder in sonstiger Weise befestigt, dass zwar ein Verdrehen möglich ist, jedoch axiale Zugkräfte am Stutzen aufgenommen werden können.In the receiving flange 21, a nozzle 11 is inserted. A part of the nozzle 11 is in the receiving flange 21st or received in the air filter housing 20 and there so locked or secured in any other way, that although a twisting is possible, however, axial tensile forces can be absorbed at the nozzle.

Im heraus ragenden Teil des Stutzens 11 ist ein Wartungsschalteranschluss 12 angeordnet. Hierbei handelt es sich um einen Abzweig der innerhalb des Stutzens ausgebildetenIn the protruding part of the nozzle 11, a maintenance switch terminal 12 is arranged. This is a branch of trained within the nozzle

Luftleitung, um eine dünne Schlauchleitung zu einem weiter entfernten Drucksensor führen zu können. Möglich ist auch, einen geeigneten Sensor zur Messung eines Druckabfalls infolge einer Verschmutzung des Luftfilters direkt am Stutzen 11 anzuordnen.Air line to be able to lead a thin hose line to a more distant pressure sensor. It is also possible to arrange a suitable sensor for measuring a pressure drop due to contamination of the air filter directly on the nozzle 11.

An den Stutzen 11 schließt sich ein Winkelabschnitt 14 an, der über eine Faltengeometrie verformbar ist, so dass die Mittelachse am Ende, das als ein Anschlussbund 15 zur Aufnahme einer Schlauchschelle ausgebildet ist, gegenüber der Mittelachse des Stutzens 11 in einem Winkel von hier etwa 45° angestellt werden kann.The connecting piece 11 is adjoined by an angle section 14 which is deformable via a fold geometry so that the center axis at the end, which is designed as a connection collar 15 for receiving a hose clamp, is at an angle of approximately 45 ° relative to the center axis of the connection piece 11 ° can be employed.

Figur 2 zeigt die gleiche Ausführungsform der Luftanschlusseinheit 10, bei der der Stutzen 11 gegenüber der Stellung in Fig. 1 so verdreht ist, dass der Wartungsschalteranschluss 12 oben liegt. Das unabhängig von der Lage des Stutzens 11 verwindbare Luftleitungselement ist mit seinem Anschlussbund 15 um 90° nach unten gebogen.Figure 2 shows the same embodiment of the air connection unit 10, in which the nozzle 11 is rotated relative to the position in Fig. 1 so that the maintenance switch terminal 12 is above. The independent of the position of the nozzle 11 twistable air duct element is bent with its connection collar 15 by 90 ° downwards.

Figur 3a zeigt eine zweite Ausführungsform einer Luftanschlusseinheit 10', bei der das Luftleitungselement zwei Winkelabschnitte 14', 16' umfasst, die miteinander an einem zentralen Anschlussbund 15' verbunden sind. Dort kann eine zusätzliche Befestigung angebracht werden. Die Verbindung mit weiteren Modulen erfolgt am Anschlussbund 17' am Ende des zweiten Winkelabschnitts 16'.FIG. 3a shows a second embodiment of an air connection unit 10 ', in which the air duct element comprises two angle sections 14', 16 ', which are connected to one another at a central connection collar 15'. There, an additional attachment can be attached. The connection with further modules takes place at the connection collar 17 'at the end of the second angle section 16'.

Wird der zweite Winkelabschnitt 16' nicht benötigt, kann er entlang der strichpunktierten Linie in Fig. 3a abgetrennt werden.If the second angle section 16 'is not needed, it can be separated along the dot-dash line in Fig. 3a.

Wie in Fig. 3b dargestellt, wird nach dem Abtrennen des unteren Winkelabschnitts 16' eine Konfiguration erhalten, die der ersten Ausführungsform nach den Figuren 1 und 2 entspricht. Der Anschlussbund 15' ist wie der endseitige Anschlussbund 17' ausgebildet und kann daher über dieselben Befestigungselemente mit weiter führenden Bauteilen verbunden werden.As shown in Fig. 3b, after the separation of the lower angle portion 16 ', a configuration is obtained, which corresponds to the first embodiment according to Figures 1 and 2. The connection collar 15 'is like the end-side connection collar 17' formed and can therefore be connected via the same fasteners with further leading components.

Claims (7)

Luftanschlusseinheit (10; 10') für ein Luftfiltergehäuse (20, 21) mit wenigstens einem Stutzen (11), in den wenigstens eine Wartungsintervallanzeige oder ein Wartungsschalteranschluss (12) integriert ist und der in einer Ausnehmung im Luftfiltergehäuse (20) drehbar zu lagern ist, und mit einem sich an den Stutzen (11) anschließenden Luftleitungselement,
dadurch gekennzeichnet, dass das Luftleitungselement über wenigstens einen Teil seiner Länge als Wellrohr (14; 14', 16') ausgebildet ist.Air connection unit (10, 10 ') for an air filter housing (20, 21) with at least one connecting piece (11), in which at least one maintenance interval display or a maintenance switch connection (12) is integrated and which is rotatably mounted in a recess in the air filter housing (20) , and with an air duct element adjoining the connecting piece (11),
characterized in that the air duct element over at least part of its length as a corrugated pipe (14, 14 ', 16') is formed. Luftanschlusseinheit (10; 10') nach Anspruch 1, dadurch gekennzeichnet, dass wenigstens ein als Wellrohr ausgebildeter Winkelabschnitt (14; 14', 16') des Luftleitungselements im kräftefreien Zustand einen Winkel von 30° bis 140° einschließt.Air connection unit (10, 10 ') according to claim 1, characterized in that at least one angle section (14, 14', 16 ') of the air duct element designed as a corrugated tube encloses an angle of 30 ° to 140 ° in the force-free state. Luftanschlusseinheit (10; 10') nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass das Luftleitungselement in einem Anschlussbund (15; 15', 17')endet.Air connection unit (10, 10 ') according to claim 1 or 2, characterized in that the air duct element ends in a connection collar (15, 15', 17 '). Luftanschlusseinheit (10') nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass das Luftleitungselement in zwei Winkelabschnitten (14', 16') als Wellrohr ausgebildet ist und eine S-förmige Konfiguration aufweist.Air connection unit (10 ') according to one of claims 1 to 3, characterized in that the air duct element in two angular sections (14', 16 ') is formed as a corrugated tube and has an S-shaped configuration. Luftanschlusseinheit (10') nach Anspruch 4, dadurch gekennzeichnet, dass das Luftleitungselement zwischen den Winkelabschnitten (14', 16') und endseitig als Anschlussbund (15', 17') ausgebildet ist.Air connection unit (10 ') according to claim 4, characterized in that the air duct element between the angle sections (14', 16 ') and the end as a connection collar (15', 17 ') is formed. Luftanschlusseinheit nach Anspruch 5, dadurch gekennzeichnet, dass die Winkelabschnitte über eine Muffen verbindung luftdicht miteinander verbunden sind.Air connection unit according to claim 5, characterized in that the angle sections are connected via a sleeve connection airtight to each other. Luftfiltergehäuse (20) mit einer Lagerausnehmung, in der eine Luftanschlusseinheit nach einem der vorheri gen Ansprüche drehbar angeordnet ist.Air filter housing (20) with a bearing recess in which an air connection unit is rotatably arranged according to one of the claims vorheri conditions.
EP07101376A 2006-03-16 2007-01-30 Air supply unit for an air filter body Withdrawn EP1835166A3 (en)

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DE102006012592A DE102006012592A1 (en) 2006-03-16 2006-03-16 Air connection unit for an air filter housing

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EP1835166A2 true EP1835166A2 (en) 2007-09-19
EP1835166A3 EP1835166A3 (en) 2008-04-02

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EP (1) EP1835166A3 (en)
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EP2843206A1 (en) 2013-09-02 2015-03-04 Mann + Hummel Gmbh Filter system with sensor tip
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Also Published As

Publication number Publication date
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EP1835166A3 (en) 2008-04-02
US20070240393A1 (en) 2007-10-18

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