EP1591653B1 - Air filter element for an intake system of an IC engine - Google Patents

Air filter element for an intake system of an IC engine Download PDF

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Publication number
EP1591653B1
EP1591653B1 EP20050005435 EP05005435A EP1591653B1 EP 1591653 B1 EP1591653 B1 EP 1591653B1 EP 20050005435 EP20050005435 EP 20050005435 EP 05005435 A EP05005435 A EP 05005435A EP 1591653 B1 EP1591653 B1 EP 1591653B1
Authority
EP
European Patent Office
Prior art keywords
air filter
air
filter cartridge
intake system
cavity
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.)
Expired - Fee Related
Application number
EP20050005435
Other languages
German (de)
French (fr)
Other versions
EP1591653A1 (en
Inventor
Michael Wessels
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.)
Dr Ing HCF Porsche AG
Original Assignee
Dr Ing HCF Porsche 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 Dr Ing HCF Porsche AG filed Critical Dr Ing HCF Porsche AG
Publication of EP1591653A1 publication Critical patent/EP1591653A1/en
Application granted granted Critical
Publication of EP1591653B1 publication Critical patent/EP1591653B1/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F02M35/02—Air cleaners
    • F02M35/024—Air cleaners using filters, e.g. moistened
    • F02M35/02475—Air cleaners using filters, e.g. moistened characterised by the shape of the filter element
    • F02M35/02483—Cylindrical, conical, oval, spherical or the like filter elements; wounded filter elements
    • 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
    • F02M35/04—Air cleaners specially arranged with respect to engine, to intake system or specially adapted to vehicle; Mounting thereon ; Combinations with other devices

Definitions

  • the invention relates to an air filter cartridge for an air intake system of an internal combustion engine and of an air intake system for an internal combustion engine according to the features of the preambles of claims 1 and 4.
  • the air filter cartridge has, for example, a paper filter element folded in the longitudinal direction, which retains the dust or other impurities entrained with the intake air.
  • the EP 0 095 516 describes a detection arrangement for determining the temporal flow rate of the intake air in an internal combustion engine, with a cavity forming a shell body, on the lateral surface of a filter element is arranged, wherein in the cavity an orifice is arranged.
  • the JP 2001289132 discloses an air intake system having a cavity forming a shell body, on the lateral surface of a filter element is arranged, wherein in the cavity an orifice is arranged.
  • the object of the invention is therefore to ensure that over the life of the air filter cartridge, the signal of the air mass meter according to the supplied air mass remains unadulterated.
  • the characteristic of the air mass meter over the entire running or lifetime of the air filter can be kept constant, so that a stable, safe and low-emission combustion is ensured.
  • the rib structure is preferably made of a plastic.
  • the orifice is advantageously formed from a perforated disc with circular openings.
  • the invention further relates to an air intake system for an internal combustion engine with an air filter housing having a clean air outlet and unfiltered air intake, wherein in the air filter housing an air filter cartridge according to one of claims 1 to 3 is received.
  • FIG. 1 an air intake system for an internal combustion engine is shown having an air filter housing 2, in which an air filter cartridge 4 is arranged.
  • the cross-sectionally oval-shaped air filter cartridge 4 is accessible via a provided on the air filter housing 2 housing cover 6.
  • the air filter housing 2 has an inlet pipe 8 for the raw air and an outlet pipe 10 for the purified by the air filter cartridge 4 combustion air.
  • the outlet pipe 10 is connected to a throttle body, not shown, via which the combustion air dosed in accordance with the cylinder head of the internal combustion engine is supplied.
  • a Air mass meter for example, attached in the form of an HFM, which detects the air mass flow accordingly before it passes through the throttle body into the combustion chamber.
  • the air filter cartridge 4 has a jacket body 12 made of a rib structure 12a.
  • the individual ribs of the rib structure 12a are spaced from each other and form between them corresponding cavities 12b, via the combustion air - as shown by the arrows in Fig. 2 represented - passes over the arranged on the lateral surface of the air filter cartridge 4 filter paper 14 into the interior or cavity 15 of the air filter cartridge 4. From there, the filtered or cleaned raw air flows as clean air through the outlet pipe 10 into the intake tract of the internal combustion engine.
  • the perforated disc 18 is formed in one piece from the rib structure 12a of the shell body 12, wherein the rib structure 12a preferably consists of a plastic material.

Description

Die Erfindung geht aus von einer Luftfilterpatrone für ein Lufteinlasssystem einer Brennkraftmaschine sowie von einem Lufteinlasssystem für eine Brennkraftmaschine gemäß den Merkmalen der Oberbegriffe der Ansprüche 1 und 4.The invention relates to an air filter cartridge for an air intake system of an internal combustion engine and of an air intake system for an internal combustion engine according to the features of the preambles of claims 1 and 4.

Zur Reinigung der von einem Verbrennungsmotor angesaugten bzw. zugeführten Verbrennungsluft sind Lufteinlasssysteme mit einer darin angeordneten Luftfilterpatrone bekannt (siehe z.B. DE 197 56 247 Al ). Die Luftfilterpatrone weist dabei beispielsweise ein in Längsrichtung gefaltetes Papierfilterelement auf, welches den mit der angesaugten Luft mitgeführten Staub oder andere Verunreinigungen zurückhält.To clean the combustion air sucked in or supplied by an internal combustion engine, air intake systems with an air filter cartridge arranged therein are known (see, for example, US Pat DE 197 56 247 A1 ). In this case, the air filter cartridge has, for example, a paper filter element folded in the longitudinal direction, which retains the dust or other impurities entrained with the intake air.

Es ist weiterhin allgemein bekannt - in Strömungsrichtung gesehen - hinter dem Luftfiltergehäuse die dem Motor zugeführte Verbrennungsluftmenge durch einen Luftmassenmesser, z.B. in Form eines HFM, zu bestimmen, damit der für eine optimale Verbrennung erforderliche Kraftstoff zugeführt werden kann. Untersuchungen haben gezeigt, dass über die Lebensdauer der Luftfilterpatrone das HFM-Signal verfälscht wird. Eine mögliche Ursache dafür liegt darin, dass sich der Strömungsverlauf der zugeführten Verbrennungsluft aufgrund der im vorderen Bereich der Luftfilterpatrone beginnenden Verschmutzung des Luftfilterpapiers verändert, so dass eine entsprechende Kennliniendrift des Luftmassenmessers feststellbar ist.It is also generally known - as seen in the flow direction - behind the air filter housing, the amount of combustion air supplied to the engine by an air mass meter, e.g. in the form of an HFM, so that the fuel required for optimal combustion can be supplied. Investigations have shown that over the life of the air filter cartridge, the HFM signal is corrupted. One possible reason for this is that the flow pattern of the supplied combustion air changes due to the contamination of the air filter paper starting in the front region of the air filter cartridge, so that a corresponding characteristic drift of the air mass meter can be detected.

Die EP 0 095 516 beschreibt eine Detektionsanordnung zum Feststellen der zeitlichen Strömungsmenge der Einlassluft in einer Brennkraftmaschine, mit einem einen Hohlraum bildenden Mantelkörper, auf dessen Mantelfläche ein Filterelement angeordnet ist, wobei in dem Hohlraum eine Drosselblende angeordnet ist.The EP 0 095 516 describes a detection arrangement for determining the temporal flow rate of the intake air in an internal combustion engine, with a cavity forming a shell body, on the lateral surface of a filter element is arranged, wherein in the cavity an orifice is arranged.

Die JP 2001289132 offenbart ein Lufteinlasssystem mit einem einen Hohlraum bildenden Mantelkörper, auf dessen Mantelfläche ein Filterelement angeordnet ist, wobei in dem Hohlraum eine Drosselblende angeordnet ist.The JP 2001289132 discloses an air intake system having a cavity forming a shell body, on the lateral surface of a filter element is arranged, wherein in the cavity an orifice is arranged.

Aus der US 6,638,330 ist es bekannt, im Hohlraum eines Filterelementes einen Luft-Deflektor vorzusehen.From the US 6,638,330 It is known to provide an air deflector in the cavity of a filter element.

Aufgabe der Erfindung ist es daher, sicherzustellen, dass über die Lebensdauer der Luftfilterpatrone das Signal des Luftmassenmessers entsprechend der zugeführten Luftmasse unverfälscht bleibt.The object of the invention is therefore to ensure that over the life of the air filter cartridge, the signal of the air mass meter according to the supplied air mass remains unadulterated.

Die Aufgabe der Erfindung wird durch die im Anspruch 1 sowie im Anspruch 4 angegebenen Merkmale gelöst.The object of the invention is achieved by the features specified in claim 1 and in claim 4.

Dadurch, dass in der Luftfilterpatrone eine Drosselblende angeordnet ist, kann die Kennlinie des Luftmassenmessers über die gesamte Lauf- bzw. Lebenszeit des Luftfilters konstant gehalten werden, so dass eine stabile, sichere und emissionsarme Verbrennung sichergestellt ist. Dazu weist der Mantelkörper der Luftfilterpatrone eine Rippenstruktur auf, aus der die Lochscheibe einstückig herausgebildet ist. Dabei ist die Rippenstruktur vorzugsweise aus einem Kunststoff hergestellt.Characterized in that an orifice plate is arranged in the air filter cartridge, the characteristic of the air mass meter over the entire running or lifetime of the air filter can be kept constant, so that a stable, safe and low-emission combustion is ensured. For this purpose, the jacket body of the air filter cartridge on a rib structure, from which the perforated disc is formed integrally. The rib structure is preferably made of a plastic.

Weitere, die Erfindung ausgestaltende Merkmale sind in den Unteransprüchen aufgeführt.Further, the invention ausgestaltende features are listed in the subclaims.

Eine für die Erfassung des HFM-Signals optimale Lage der Drosselblende ergibt sich, wenn diese -bezogen auf die Längsachse der Luftfilterpatrone- im wesentlichen senkrecht dazu und -bezogen auf die Länge I der Luftfilterpatrone- im wesentlichen mittig im Hohlraum der Luftfilterpatrone angeordnet ist.An optimum for the detection of the HFM signal position of the orifice results when this-related to the longitudinal axis of the air filter cartridge-substantially perpendicular thereto and-related to the length I of the Luftfilterpatrone- is arranged substantially centrally in the cavity of the air filter cartridge.

Die Drosselblende ist vorteilhaft aus einer Lochscheibe mit kreisförmigen Öffnungen gebildet.The orifice is advantageously formed from a perforated disc with circular openings.

Die Erfindung betrifft weiterhin ein Lufteinlasssystem für eine Brennkraftmaschine mit einem Luftfiltergehäuse, das einen Reinluftauslass und Rohlufteinlass aufweist, wobei im Luftfiltergehäuse eine Luftfilterpatrone gemäß einem der Ansprüche 1 bis 3 aufgenommen ist.The invention further relates to an air intake system for an internal combustion engine with an air filter housing having a clean air outlet and unfiltered air intake, wherein in the air filter housing an air filter cartridge according to one of claims 1 to 3 is received.

In der Zeichnung ist ein Ausführungsbeispiel der Erfindung dargestellt, das nachstehend näher beschrieben ist.In the drawing, an embodiment of the invention is shown, which is described in more detail below.

Es zeigen

Fig. 1
eine Perspektivansicht eines Lufteinlasssystems für eine Brennkraftmaschine,
Fig. 2
das teilweise im Schnitt dargestellte Lufteinlasssystem,
Fig. 3
einen Längsschnitt durch eine Luftfilterpatrone des Lufteinlasssystems und
Fig. 4
einen Querschnitt durch die Luftfilterpatrone.
Show it
Fig. 1
a perspective view of an air intake system for an internal combustion engine,
Fig. 2
the partial sectional air intake system,
Fig. 3
a longitudinal section through an air filter cartridge of the air intake system and
Fig. 4
a cross section through the air filter cartridge.

Beschreibung des AusführungsbeispielsDescription of the embodiment

In Fig. 1 ist ein Lufteinlasssystem für eine Brennkraftmaschine dargestellt, das ein Luftfiltergehäuse 2 aufweist, in dem eine Luftfilterpatrone 4 angeordnet ist. Die im Querschnitt ovalförmig ausgebildete Luftfilterpatrone 4 ist dabei über einen am Luftfiltergehäuse 2 vorgesehenen Gehäusedeckel 6 zugänglich. Das Luftfiltergehäuse 2 weist einen Einlassstutzen 8 für die Rohluft sowie ein Auslassrohr 10 für die durch die Luftfilterpatrone 4 gereinigte Verbrennungsluft auf. Das Auslassrohr 10 ist dabei mit einem nicht dargestellten Drosselklappengehäuse verbunden, über das die Verbrennungsluft entsprechend dosiert, dem Zylinderkopf der Brennkraftmaschine zugeführt wird. In Strömungsrichtung gesehen hinter dem Auslassrohr 10 ist ein Luftmassenmesser, z.B. in Form eines HFM befestigt, der den Luftmassenstrom entsprechend erfasst, bevor er über das Drosselklappengehäuse in den Brennraum gelangt.In Fig. 1 an air intake system for an internal combustion engine is shown having an air filter housing 2, in which an air filter cartridge 4 is arranged. The cross-sectionally oval-shaped air filter cartridge 4 is accessible via a provided on the air filter housing 2 housing cover 6. The air filter housing 2 has an inlet pipe 8 for the raw air and an outlet pipe 10 for the purified by the air filter cartridge 4 combustion air. The outlet pipe 10 is connected to a throttle body, not shown, via which the combustion air dosed in accordance with the cylinder head of the internal combustion engine is supplied. As seen in the flow direction behind the outlet pipe 10 is a Air mass meter, for example, attached in the form of an HFM, which detects the air mass flow accordingly before it passes through the throttle body into the combustion chamber.

Die Luftfilterpatrone 4 weist einen Mantelkörper 12 aus einer Rippenstruktur 12a auf. Die einzelnen Rippen der Rippenstruktur 12a sind dabei voneinander beabstandet und bilden dazwischen entsprechende Hohlräume 12b aus, über die Verbrennungsluft - wie anhand der Pfeile in Fig. 2 dargestellt - über das auf der Mantelfläche der Luftfilterpatrone 4 angeordnete Filterpapier 14 in den Innenraum bzw. Hohlraum 15 der Luftfilterpatrone 4 gelangt. Von dort aus strömt die gefilterte bzw. gereinigte Rohluft als Reinluft über das Auslassrohr 10 in den Ansaugtrakt der Brennkraftmaschine. Wie insbesondere in den Fig. 3 und 4 erkennbar, ist - bezogen auf die Längsachse 16 der Luftfilterpatrone 4 - im wesentlichen senkrecht dazu und -bezogen auf die Länge I der Luftfilterpatrone 4- im wesentlichen mittig eine Drosselblende 18 angeordnet, die in Form einer Lochscheibe mit kreisförmigen Öffnungen 20 ausgebildet ist. Die Lochscheibe 18 ist dabei einstückig aus der Rippenstruktur 12a des Mantelkörpers 12 herausgebildet, wobei die Rippenstruktur 12a vorzugsweise aus einem Kunststoffmaterial besteht.The air filter cartridge 4 has a jacket body 12 made of a rib structure 12a. The individual ribs of the rib structure 12a are spaced from each other and form between them corresponding cavities 12b, via the combustion air - as shown by the arrows in Fig. 2 represented - passes over the arranged on the lateral surface of the air filter cartridge 4 filter paper 14 into the interior or cavity 15 of the air filter cartridge 4. From there, the filtered or cleaned raw air flows as clean air through the outlet pipe 10 into the intake tract of the internal combustion engine. As in particular in the 3 and 4 recognizable - is relative to the longitudinal axis 16 of the air filter cartridge 4 - substantially perpendicular thereto and-related to the length I of the air filter cartridge 4- substantially centrally disposed an orifice 18, which is in the form of a perforated disc with circular openings 20. The perforated disc 18 is formed in one piece from the rib structure 12a of the shell body 12, wherein the rib structure 12a preferably consists of a plastic material.

Claims (4)

  1. Air filter cartridge (4) for an air inlet system of an internal combustion engine, with a casing body (12) which forms a cavity (15) and on the surface area of which a filter element (14) is arranged, a throttle diaphragm (18) being arranged in the cavity (15), the throttle diaphragm (18) consisting of a perforated disc, characterized in that the casing body (12) of the air filter cartridge (4) has a ribbed structure (12a) out of which the perforated disc (18) is formed in one piece.
  2. Air filter cartridge according to Claim 1, characterized in that the throttle diaphragm (18) is arranged in the cavity (15) of the air filter cartridge (4) essentially perpendicularly with respect to the longitudinal axis of the air filter cartridge (4) and essentially centrally with respect to the length 1 of the air filter cartridge (4).
  3. Air filter cartridge according to Claim 1 or 2, characterized in that the throttle diaphragm (18) consists of a perforated disc having circular orifices (20).
  4. Air inlet system for an internal combustion engine with an air filter housing (2) which has a clean-air outlet (10) and an untreated-air inlet (8), characterized in that an air filter cartridge (4) according to one of Claims 1 to 3 is arranged in the air filter housing (2).
EP20050005435 2004-04-30 2005-03-12 Air filter element for an intake system of an IC engine Expired - Fee Related EP1591653B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004021728 2004-04-30
DE200410021728 DE102004021728A1 (en) 2004-04-30 2004-04-30 Air filter cartridge for an air intake system of an internal combustion engine

Publications (2)

Publication Number Publication Date
EP1591653A1 EP1591653A1 (en) 2005-11-02
EP1591653B1 true EP1591653B1 (en) 2010-09-01

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ID=34934234

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20050005435 Expired - Fee Related EP1591653B1 (en) 2004-04-30 2005-03-12 Air filter element for an intake system of an IC engine

Country Status (2)

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EP (1) EP1591653B1 (en)
DE (2) DE102004021728A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009050259A1 (en) * 2009-10-21 2011-05-12 Mann + Hummel Gmbh Filter system and filter element for filtering fluids
DE102010049411A1 (en) 2010-10-26 2012-04-26 Mann + Hummel Gmbh Filter element for an air intake system
ITBO20120007A1 (en) * 2012-01-05 2013-07-06 Bmc Srl FILTERING DEVICE WITH DOUBLE TUBULAR FILTER FOR AIR INTAKE FROM A MOTOR
DE102013218217A1 (en) 2013-09-11 2015-03-26 Mahle International Gmbh air filter

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0095516B1 (en) * 1982-05-28 1986-10-01 Mitsubishi Denki Kabushiki Kaisha Detection arrangement suitable for detecting the intake air flow rate in an internal combustion engine
JPS60228756A (en) * 1984-04-26 1985-11-14 Nippon Soken Inc Intake air cleaning device of internal-combustion engine
US4758256A (en) * 1987-06-25 1988-07-19 Allied-Signal Inc. Air filter with removable bridge assembly
US6258144B1 (en) * 1999-10-20 2001-07-10 Jui-Fa Huang Air filtering device for a vehicle engine including interengaged filter members and a flow regulation member
IT1311430B1 (en) * 1999-12-15 2002-03-12 Bmc Srl INTERNAL COMBUSTION ENGINE FILTERING AIR DEVICE.
JP3995386B2 (en) * 2000-04-04 2007-10-24 株式会社デンソー Intake device

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Publication number Publication date
DE502005010159D1 (en) 2010-10-14
DE102004021728A1 (en) 2005-11-24
EP1591653A1 (en) 2005-11-02

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