EP1131550B1 - Air filter for filtering induced air for internal combustion engines of motor vehicles - Google Patents

Air filter for filtering induced air for internal combustion engines of motor vehicles Download PDF

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Publication number
EP1131550B1
EP1131550B1 EP00974293A EP00974293A EP1131550B1 EP 1131550 B1 EP1131550 B1 EP 1131550B1 EP 00974293 A EP00974293 A EP 00974293A EP 00974293 A EP00974293 A EP 00974293A EP 1131550 B1 EP1131550 B1 EP 1131550B1
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EP
European Patent Office
Prior art keywords
air
filter
outlet
water
filter housing
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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 - Lifetime
Application number
EP00974293A
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German (de)
French (fr)
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EP1131550A1 (en
Inventor
Thomas Lenzing
Uwe Konzelmann
Waldemar Guenther
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Robert Bosch GmbH
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Robert Bosch GmbH
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Publication of EP1131550A1 publication Critical patent/EP1131550A1/en
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/02Air cleaners
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/02Air cleaners
    • F02M35/024Air cleaners using filters, e.g. moistened
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S261/00Gas and liquid contact apparatus
    • Y10S261/09Furnace gas scrubbers

Definitions

  • the invention relates to an air filter for filtering the Intake air for internal combustion engines of motor vehicles of the Generic term of claim 1 defined genus.
  • Such air filters such as those from Bosch “Automotive Handbook", 1998, page 422 et seq. are known to keep the intake air in the Internal combustion engine contained dust and prevent a premature wear of the internal combustion engine.
  • the the Dust-retaining, to be replaced in maintenance intervals Filter mat is tuned to the internal combustion engine, around performance, fuel economy and damping of the Optimize intake noise.
  • For discharging in the Filter housing forming condensation are in the bottom of the Filter housing provided several drain holes.
  • a device for separating the gaseous and liquid phase of a gas / oil mixture in a pipeline known to be one with a feed and a Drain used in the pipeline housing in the a water separator is arranged.
  • the one from a perforated plate existing water separator is oblique, i. under a acute angle to the axes of inlet and outlet, aligned and divides the housing into one with the inlet connected housing section and one with the drain connected housing section.
  • a liquid outlet is provided so that the am Water separator secreting liquid from the housing can expire.
  • the inventive air filter with the features of Claim 1 has the advantage that on the one hand in the sucked air contained water particles on Water separator will be precipitated and located at the bottom of the Deposit the filter housing and on the other hand, the on the ground the filter housing accumulating water in the operation of the Internal combustion engine reliably via the water drain is dissipated and not in Strömungsstothab the Accumulates filter housing. This will cause the filter mat in the Filter housing less humid and can not handle Moisture fully so that secondary disorders on the Clean air side as a result of the fully sucked filter mat be avoided by passing water.
  • the required water level in the water drain thereby realized that at a drain opening in the filter housing itself an outlet pipe connects, in the course of which an annular Loop or a meandering loop in the manner of a Water seal is formed.
  • the drainpipe will be here preferably designed as a hose.
  • the means for water level training one of Drain opening in the filter housing continuing drainage pipe which is filled with absorbent material.
  • One similar suction effect is also due to a large Surface roughness of the inner pipe wall of the drain pipe or by providing a constriction in the course of the drainpipe achieved.
  • Air filter for filtering the intake air of a Internal combustion engine in a motor vehicle has a Filter housing 10 with an air inlet 11 and an air outlet 12 and a between Luftein and -auslador 11,12 arranged, exchangeable filter mat 13 on.
  • the air inlet 11 is with an air intake 14 and the air outlet 12 with a Connection piece 15 provided after installation of the Filter housing 10 in the motor vehicle with the intake pipe of Internal combustion engine is connected.
  • the Filter mat 13 In installation position is the Filter mat 13, for example, horizontally aligned and divided the interior of the filter housing 10 in one lower housing space 16, in the upper region of the Air inlet 11 is located, and in an upper housing space 17, in the air outlet 12 opens.
  • the housing bottom 101 of Filter housing 10 is funnel-shaped and on provided its lowest point with a water outlet 18.
  • a water separator 19 is arranged. Of the Water separator 19 is at an acute angle aligned with the axis of the air inlet 11 and aligned separates from the lower housing space 16 a front area From 20 in which both the air inlet 11 and the Water drain 18 is located.
  • the water separator 19 is called Lattice e.g. made of stainless knit metal, wherein the grid meshes or honeycombs have a size of e.g. approximately 0.8 x 1.6 mm.
  • the means for water level training by a loop 24th realized in the course of preferably as a hose executed drain pipe 21 is formed.
  • this Loop 24 is always a water column 23 (in Fig. 2 by Dashed lines marked) available, the corresponding Formation of the loop 24 in the filter housing 10th prevailing negative pressure in its effect on the Water outlet 18 neutralized.
  • the drain pipe 21 instead of the loop 24 can the drain pipe 21 also with a meandering loop 25th (Fig. 2) are provided by the drain pipe 21 twice 180 ° is bent.
  • the height of the loop 25 sets the height the water column 23 always present in the drainage pipe 21, to compensate for the negative pressure in the filter housing 10.
  • the drain pipe 21 in a remote from the drain opening 22 pipe section a narrowing 26 provided its clear diameter.
  • the constriction 26 builds for the compensation the negative pressure in the filter housing 10 required Water level in the drain pipe 21 only in the course of Driving operation on automatically.
  • Drain pipe 21 of FIG. 4 The same effect ofsätig building up Water level due to increasing water intake in the Air filter while driving is with the execution of Drain pipe 21 of FIG. 4 achieved.
  • the Inner tube wall of the drain pipe 21 with a considerable Surface roughness 27 provided.
  • Fig. 5 for Water level training is used to generate the required water level during driving the Mechanism of absorbency.
  • the funds are going through here realized an absorbent material 28, with which the Drain pipe 21 is filled.
  • Such an absorbent Material can be a sponge or a textile wick.
  • the Drain pipe 21 are designed as a hose.

Description

Stand der TechnikState of the art

Die Erfindung betrifft einen Luftfilter zur Filterung der Ansaugluft für Brennkraftmaschinen von Kraftfahrzeugen der im Oberbegriff des Anspruchs 1 definierten Gattung.The invention relates to an air filter for filtering the Intake air for internal combustion engines of motor vehicles of the Generic term of claim 1 defined genus.

Solche Luftfilter, wie sie beispielsweise aus Bosch "Kraftfahrtechnisches Taschenbuch", 1998, Seite 422 ff. bekannt sind, halten den in der Ansaugluft der Brennkraftmaschine enthaltenen Staub fern und verhindern einen verfrühten Verschleiß der Brennkraftmaschine. Die den Staub zurückhaltende, in Wartungsintervallen auszutauschende Filtermatte ist dabei auf die Brennkraftmaschine abgestimmt, um Leistung, Kraftstoffverbrauch und Dämpfung des Ansauggeräusches zu optimieren. Zum Abführen von im Filtergehäuse sich bildenden Kondenswasser sind im Boden des Filtergehäuses mehrere Ablaufbohrungen vorgesehen.Such air filters, such as those from Bosch "Automotive Handbook", 1998, page 422 et seq. are known to keep the intake air in the Internal combustion engine contained dust and prevent a premature wear of the internal combustion engine. The the Dust-retaining, to be replaced in maintenance intervals Filter mat is tuned to the internal combustion engine, around performance, fuel economy and damping of the Optimize intake noise. For discharging in the Filter housing forming condensation are in the bottom of the Filter housing provided several drain holes.

Aus der US 5 507 858 ist eine Vorrichtung zur Trennung der gasförmigen und flüssigen Phase eines Gas-/Ölgemisches in einer Pipeline bekannt, die ein mit einem Zulauf und einem Ablauf in die Pipeline eingesetztes Gehäuse aufweist, in dem ein Wasserabscheider angeordnet ist. Der aus einer Lochplatte bestehende Wasserabscheider ist schräg, d.h. unter einem spitzen Winkel zu den Achsen von Zu- und Ablauf, ausgerichtet und unterteilt das Gehäuse in einen mit dem Zulauf verbundenen Gehäuseabschnitt und einen mit dem Ablauf verbundenen Gehäuseabschnitt. Im letzteren Gehäuseabschnitt ist ein Flüssigkeitsauslaß vorgesehen, so daß die am Wasserabscheider sich absondernde Flüssigkeit aus dem Gehäuse ablaufen kann.From US 5 507 858 a device for separating the gaseous and liquid phase of a gas / oil mixture in a pipeline known to be one with a feed and a Drain used in the pipeline housing in the a water separator is arranged. The one from a perforated plate existing water separator is oblique, i. under a acute angle to the axes of inlet and outlet, aligned and divides the housing into one with the inlet connected housing section and one with the drain connected housing section. In the latter housing section a liquid outlet is provided so that the am Water separator secreting liquid from the housing can expire.

Vorteile der ErfindungAdvantages of the invention

Der erfindungsgemäße Luftfilter mit den Merkmalen des Anspruchs 1 hat den Vorteil, daß einerseits in der angesaugten Luft enthaltene Wasserpartikel am Wasserabscheider ausgefällt werden und sich am Boden des Filtergehäuses ablagern und andererseits das sich am Boden des Filtergehäuses ansammelnde Wasser auch im Betrieb der Brennkraftmaschine über den Wasserablauf zuverlässig abgeführt wird und sich nicht in Strömungstoträumen des Filtergehäuses ansammelt. Dadurch wird die Filtermatte im Filtergehäuse weniger feucht und kann sich nicht mit Feuchtigkeit voll saugen, so daß Sekundärstörungen auf der Reinluftseite infolge von durch die vollgesaugte Filtermatte hindurchtretendem Wasser vermieden werden.The inventive air filter with the features of Claim 1 has the advantage that on the one hand in the sucked air contained water particles on Water separator will be precipitated and located at the bottom of the Deposit the filter housing and on the other hand, the on the ground the filter housing accumulating water in the operation of the Internal combustion engine reliably via the water drain is dissipated and not in Strömungsstoträumen the Accumulates filter housing. This will cause the filter mat in the Filter housing less humid and can not handle Moisture fully so that secondary disorders on the Clean air side as a result of the fully sucked filter mat be avoided by passing water.

Durch die in den weiteren Ansprüchen aufgeführten Maßnahmen sind vorteilhafte Weiterbildungen und Verbesserungen des im Anspruch 1 angegebenen Luftfilters möglich.By the measures listed in the further claims are advantageous developments and improvements in the Claim 1 specified air filter possible.

Gemäß einer vorteilhaften Ausführungsform der Erfindung wird der erforderliche Wasserfühlstand im Wasserablauf dadurch realisiert, daß an einer Ablauföffnung im Filtergehäuse sich ein Ablaufrohr anschließt, in dessen Verlauf eine ringförmige Schlaufe oder eine mäanderförmige Schleife nach Art eines Wasserverschlusses ausgebildet ist. Das Ablaufrohr wird dabei vorzugsweise als Schlauch ausgeführt.According to an advantageous embodiment of the invention is the required water level in the water drain thereby realized that at a drain opening in the filter housing itself an outlet pipe connects, in the course of which an annular Loop or a meandering loop in the manner of a Water seal is formed. The drainpipe will be here preferably designed as a hose.

Gemäß einer bevorzugten Ausführungsform der Erfindung weisen die Mittel zur Wasserfüllstandsausbildung ein von einer Ablauföffnung im Filtergehäuse sich fortsetzendes Ablaufrohr auf, das mit saugfähigem Material ausgefüllt ist. Ein gleichartiger Saugeffekt wird auch durch eine große Oberflächenrauhigkeit der Innenrohrwand des Ablaufrohrs oder durch Vorsehen einer Verengung im Verlauf des Ablaufrohrs erzielt.According to a preferred embodiment of the invention the means for water level training one of Drain opening in the filter housing continuing drainage pipe which is filled with absorbent material. One similar suction effect is also due to a large Surface roughness of the inner pipe wall of the drain pipe or by providing a constriction in the course of the drainpipe achieved.

Alle diese vorstehend ausgeführten Ausführungsvarianten haben den Vorteil, daß unterhalb des Filtergehäuses weniger Bauraum für die Unterbringung des Ablaufrohrs erforderlich ist als dies bei der Ausbildung einer Schlaufe oder Schleife in dem Ablaufrohr der Fall ist. Außerdem ist im Ablaufrohr keine ständige Wasservorlage vorhanden, die im Winter einfrieren kann, vielmehr wird der Wasserfüllstand erst im Betrieb der Brennkraftmaschine durch den Mechanismus der Saugfähigkeit auf die erforderliche Höhe aufgebaut. Versuche haben ergeben, daß unabhängig davon, sich eine verbesserte Wasserabscheidung ergibt.All of these embodiments have executed above the advantage that below the filter housing less space is required for the accommodation of the drain pipe as this in the formation of a loop or loop in the Drain pipe is the case. In addition, in the drain pipe no permanent water mask available, which freeze in winter can, but the water level is only in the operation of Internal combustion engine through the mechanism of absorbency built up to the required height. Experiments have shown that, independently, is an improved water separation results.

Zeichnungdrawing

Die Erfindung ist anhand von in der Zeichnung dargestellten Ausführungsbeispielen in der nachfolgenden Beschreibung näher erläutert. Es zeigen jeweils in schematischer Darstellung:

Fig. 1
einen Längsschnitt eines Luftfilters für den Ansaugtrakt einer Brennkraftmaschine,
Fig. 2
ausschnittweise eine Seitenansicht des unteren Bereichs des Luftfilters in Fig. 1 gemäß einem zweiten Ausführungsbeispiel,
Fig. 3 bis 5
jeweils ausschnittweise einen Längsschnitt des unteren Bereichs des Luftfilters in Fig. 1 gemäß weiterer Ausführungsbeispiele.
The invention is explained in more detail with reference to embodiments illustrated in the drawings in the following description. Shown schematically in each case:
Fig. 1
a longitudinal section of an air filter for the intake tract of an internal combustion engine,
Fig. 2
2 shows a detail of a side view of the lower region of the air filter in FIG. 1 according to a second exemplary embodiment,
Fig. 3 to 5
in each case a detail of a longitudinal section of the lower portion of the air filter in Fig. 1 according to further embodiments.

Beschreibung der AusführungsbeispieleDescription of the embodiments

Der in Fig. 1 schematisch im Längsschnitt dargestellte Luftfilter zur Filterung der Ansaugluft einer Brennkraftmaschine in einem Kraftfahrzeug weist ein Filtergehäuse 10 mit einem Lufteinlaß 11 und einem Luftauslaß 12 und eine zwischen Luftein- und -auslaß 11,12 angeordnete, austauschbare Filtermatte 13 auf. Der Lufteinlaß 11 ist mit einem Luftansaugstutzen 14 und der Luftauslaß 12 mit einem Anschlußstutzen 15 versehen, der nach Einbau des Filtergehäuses 10 in das Kraftfahrzeug mit dem Ansaugrohr der Brennkraftmaschine verbunden wird. In Einbaulage ist die Filtermatte 13 beispielsweise horizontal ausgerichtet und unterteilt den Innenraum des Filtergehäuses 10 in einen unteren Gehäuseraum 16, in dessen oberem Bereich der Lufteinlaß 11 liegt, und in einen oberen Gehäuseraum 17, in dem der Luftauslaß 12 mündet. Der Gehäuseboden 101 des Filtergehäuses 10 ist trichterförmig ausgebildet und an seiner tiefsten Stelle mit einem Wasserablauf 18 versehen.The one shown in Fig. 1 schematically in longitudinal section Air filter for filtering the intake air of a Internal combustion engine in a motor vehicle has a Filter housing 10 with an air inlet 11 and an air outlet 12 and a between Luftein and -auslaß 11,12 arranged, exchangeable filter mat 13 on. The air inlet 11 is with an air intake 14 and the air outlet 12 with a Connection piece 15 provided after installation of the Filter housing 10 in the motor vehicle with the intake pipe of Internal combustion engine is connected. In installation position is the Filter mat 13, for example, horizontally aligned and divided the interior of the filter housing 10 in one lower housing space 16, in the upper region of the Air inlet 11 is located, and in an upper housing space 17, in the air outlet 12 opens. The housing bottom 101 of Filter housing 10 is funnel-shaped and on provided its lowest point with a water outlet 18.

Zur verbesserten Wasserabscheidung aus der über den Lufteinlaß 11 eintretenden, mit Feuchtigkeit oder Wassertropfen beladenen Luft ist stromaufwärts der Filtermatte 13 ein Wasserabscheider 19 angeordnet. Der Wasserabscheider 19 ist dabei unter einem spitzen Winkel geneigt zur Achse des Lufteinlasses 11 ausgerichtet und trennt von dem unteren Gehäuseraum 16 einen vorderen Bereich 20 ab, in dem sowohl der Lufteinlaß 11 als auch der Wasserablauf 18 liegt. Der Wasserabscheider 19 wird als Gitter z.B. aus nicht rostendem Strickmetall ausgeführt, wobei die Gittermaschen oder -waben eine Größe von z.B. etwa 0,8 x 1,6 mm aufweisen. Im Fahrbetrieb herrscht im Filtergehäuse 10 ein Unterdruck, der das aus dem Luftstrom ausgefällte und am Gehäuseboden 101 sich ansammelnde Wasser nicht oder nur schlecht über den Wasserablauf 18 ablaufen läßt. Dadurch kann sich die Filtermatte 13 mit Wasser vollsaugen, und, nachdem ihre Speicherfähigkeit erschöpft ist, dringt Wasser durch die Filtermatte 13 hindurch und gelangt in den reinluftseitigen Ansaugtrakt der Brennkraftmaschine, in dem durch das Wasser Störungen an dort befindlichen Sensoren auftreten können. Um dieses zu vermeiden, sind im Wasserablauf 18 Mittel angeordnet, die im Wasserablauf 18 einen Wasserfüllstand von einer solchen Höhe ausbilden, daß der auf den Wasserablauf 18 wirkende Unterdruck kompensiert ist. Diese Mittel können in verschiedener Weise realisiert werden, wobei in allen Fällen der Wasserablauf 18 mit einem an der Unterseite des Filtergehäuses 10 sich fortsetzenden Ablaufrohr 21 versehen ist, das eine Ablauföffnung 22 im Gehäuseboden 101 umschließt.For improved water separation from the over the Air inlet 11 entering, with moisture or Water drops laden air is upstream of the Filter mat 13, a water separator 19 is arranged. Of the Water separator 19 is at an acute angle aligned with the axis of the air inlet 11 and aligned separates from the lower housing space 16 a front area From 20 in which both the air inlet 11 and the Water drain 18 is located. The water separator 19 is called Lattice e.g. made of stainless knit metal, wherein the grid meshes or honeycombs have a size of e.g. approximately 0.8 x 1.6 mm. In driving prevails in the Filter housing 10, a negative pressure, which from the air flow precipitated and accumulating at the bottom of the housing 101 water not or only poorly on the water drain 18 run off leaves. This allows the filter mat 13 with water soak, and after exhausting their storage capacity is, penetrates water through the filter mat 13 through and enters the clean air intake of the Internal combustion engine in which by the water disturbances at there located sensors can occur. To this avoid 18 means are arranged in the water outlet, which in Water drain 18 a water level of such a height form that the acting on the water outlet 18 Negative pressure is compensated. These funds can be used in be realized in various ways, in all cases the water drain 18 with one at the bottom of the Filter housing 10 extending drain pipe 21 is provided is that a drain opening 22 in the housing bottom 101 encloses.

Bei dem in Fig. 1 dargestellten Luftfilter sind die Mittel zur Wasserfüllstandsausbildung durch eine Schlaufe 24 realisiert, die im Verlauf des vorzugsweise als Schlauch ausgeführten Ablaufrohrs 21 ausgebildet ist. In dieser Schlaufe 24 ist immer eine Wassersäule 23 (in Fig. 2 durch Strichelung markiert) vorhanden, die bei entsprechender Ausbildung der Schlaufe 24 den im Filtergehäuse 10 herrschenden Unterdruck in seiner Wirkung auf den Wasserablauf 18 neutralisiert. Anstelle der Schlaufe 24 kann das Ablaufrohr 21 auch mit einer mäanderförmigen Schleife 25 (Fig. 2) versehen werden, indem das Ablaufrohr 21 zweimal um 180° umgebogen wird. Die Höhe der Schleife 25 legt die Höhe der im Ablaufrohr 21 stets vorhandenen Wassersäule 23 fest, um den Unterdruck im Filtergehäuse 10 zu kompensieren.In the air filter shown in Fig. 1, the means for water level training by a loop 24th realized in the course of preferably as a hose executed drain pipe 21 is formed. In this Loop 24 is always a water column 23 (in Fig. 2 by Dashed lines marked) available, the corresponding Formation of the loop 24 in the filter housing 10th prevailing negative pressure in its effect on the Water outlet 18 neutralized. Instead of the loop 24 can the drain pipe 21 also with a meandering loop 25th (Fig. 2) are provided by the drain pipe 21 twice 180 ° is bent. The height of the loop 25 sets the height the water column 23 always present in the drainage pipe 21, to compensate for the negative pressure in the filter housing 10.

Im Ausführungsbeispiel der Fig. 3 ist das Ablaufrohr 21 in einem von der Ablauföffnung 22 abgekehrten Rohrabschnitt mit einer Verengung 26 seines lichten Durchmessers versehen. Infolge der Verengung 26 baut sich der für die Kompensation des Unterdrucks im Filtergehäuse 10 erforderliche Wasserfüllstand im Ablaufrohr 21 erst im Laufe des Fahrbetriebs selbsttätig auf. Bei abgestellter Brennkraftmaschine und damit in Wegfall kommendem Unterdruck läuft das Wasser vollständig aus dem Filtergehäuse 10 ab, so daß im Winter ein Einfrieren des Wasserablaufs 18 vermieden wird.In the embodiment of FIG. 3, the drain pipe 21 in a remote from the drain opening 22 pipe section a narrowing 26 provided its clear diameter. As a result of the constriction 26 builds for the compensation the negative pressure in the filter housing 10 required Water level in the drain pipe 21 only in the course of Driving operation on automatically. When turned off Internal combustion engine and thus in the event of coming negative pressure the water runs completely from the filter housing 10, so that avoided freezing of the water outlet 18 in the winter becomes.

Der gleiche Effekt des sich selbstätig aufbauenden Wasserfüllstands durch zunehmenden Wassereintrag in den Luftfilter im Fahrbetrieb wird mit der Ausführung des Ablaufrohrs 21 gemäß Fig. 4 erreicht. Hier ist die Innenrohrwand des Ablaufrohrs 21 mit einer erheblichen Oberflächenrauhigkeit 27 versehen.The same effect of selbstätig building up Water level due to increasing water intake in the Air filter while driving is with the execution of Drain pipe 21 of FIG. 4 achieved. Here is the Inner tube wall of the drain pipe 21 with a considerable Surface roughness 27 provided.

Bei dem in Fig. 5 dargestellten Mitteln zur Wasserfüllstandsausbildung nutzt man zur Erzeugung des erforderlichen Wasserfüllstands während des Fahrbetriebs den Mechanismus der Saugfähigkeit. Die Mittel werden hier durch ein saugfähiges Material 28 realisiert, mit dem das Ablaufrohr 21 ausgefüllt ist. Ein solches saugfähiges Material kann ein Schwamm oder ein textiler Docht sein.In the means shown in Fig. 5 for Water level training is used to generate the required water level during driving the Mechanism of absorbency. The funds are going through here realized an absorbent material 28, with which the Drain pipe 21 is filled. Such an absorbent Material can be a sponge or a textile wick.

In allen Ausführungsbeispielen gemäß Fig. 2 - 5 kann das Ablaufrohr 21 als Schlauch ausgeführt werden.In all embodiments of FIG. 2 - 5, the Drain pipe 21 are designed as a hose.

Claims (10)

  1. Air filter for filtering the intake air for internal combustion engines of motor vehicles, having a filter housing (10) which has an air inlet (11) connected to an induction pipe (14) and an air outlet (12) which can be connected to an intake manifold of the internal combustion engine, and also at least one water outlet (18) arranged on the housing base (101), and having an exchangeable filter mat (13) which is arranged in the filter housing (10) between the air inlet (11) and the air outlet (12), characterized in that a water separator (19) is arranged in the filter housing (10) upstream of the filter mat (13) and means are provided in the at least one water outlet (18) which form a water filling state (23) in the water outlet (18) having such a height that the vacuum acting in the filter housing (10) on the water outlet (18) is compensated for.
  2. Air filter according to Claim 1, characterized in that the means for forming the water filling state have an outlet pipe (21) which extends from an outlet opening (22) in the filter housing (10) and in the course of which a loop (24) or a meandering loop (25) is formed.
  3. Air filter according to Claim 1, characterized in that the means for forming the water filling state have an outlet pipe (21) which extends from an outlet opening (22) in the filter housing (10) and is provided with a constriction (26) of its inside diameter in a tube section which is remote from the outlet opening (22).
  4. Air filter according to Claim 1, characterized in that the means for forming the water filling state have an outlet pipe (21) which extends from an outlet opening (22) in the filter housing (10) and has a great surface roughness (27) on its inside.
  5. Air filter according to Claim 1, characterized in that the means for forming the water filling state have an outlet pipe (21) which extends from an outlet opening (22) in the filter housing (10) and whose hollow interior is filled with an absorbent material (28).
  6. Air filter according to Claim 5, characterized in that a sponge or a textile wick is used as absorbent material.
  7. Air filter according to one of Claims 2 to 6, characterized in that the outlet pipe (21) is configured as a hose.
  8. Air filter according to one of Claims 1 to 7, characterized in that the water separator (19) is arranged so as to be inclined at an acute angle with respect to the axis of the air inlet (11) of the filter housing (10) and separates a front region (20), in which the air inlet (11) and the water outlet (18) are arranged, from the interior (16) of the filter housing (10) lying underneath the filter mat (13).
  9. Air filter according to one of Claims 1 to 8, characterized in that the water separator (19) is configured as a lattice, preferably made of stainless woven metal.
  10. Filter according to Claim 9, characterized in that the lattice meshes or honeycombs are of a size of approximately 0.8 x 1.6 mm.
EP00974293A 1999-09-07 2000-09-05 Air filter for filtering induced air for internal combustion engines of motor vehicles Expired - Lifetime EP1131550B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19942503A DE19942503A1 (en) 1999-09-07 1999-09-07 Air filter for filtering the intake air for internal combustion engines of motor vehicles
DE19942503 1999-09-07
PCT/DE2000/003043 WO2001018379A1 (en) 1999-09-07 2000-09-05 Air filter for filtering induced air for internal combustion engines of motor vehicles

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EP1131550A1 EP1131550A1 (en) 2001-09-12
EP1131550B1 true EP1131550B1 (en) 2005-02-02

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EP00974293A Expired - Lifetime EP1131550B1 (en) 1999-09-07 2000-09-05 Air filter for filtering induced air for internal combustion engines of motor vehicles

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US (1) US6521008B1 (en)
EP (1) EP1131550B1 (en)
JP (1) JP2003508678A (en)
KR (1) KR20010080949A (en)
DE (2) DE19942503A1 (en)
WO (1) WO2001018379A1 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10200673B4 (en) * 2002-01-10 2007-06-14 Siemens Ag Automotive air filter
DE10316652B4 (en) * 2003-04-11 2015-08-06 Volkswagen Ag Air filter for an internal combustion engine
US7069893B2 (en) * 2004-06-14 2006-07-04 Ford Motor Company Air intake system
CN100432413C (en) * 2004-08-19 2008-11-12 光阳工业股份有限公司 Air filter device for engine
EP1669588A1 (en) * 2004-12-13 2006-06-14 Kwang Yang Motor Co., Ltd. Engine air filter structure
DE102008045595B4 (en) 2008-09-03 2020-09-03 Audi Ag Automotive air filter system and associated assembly process
DE102009024662A1 (en) * 2009-03-06 2010-09-09 Audi Ag Air filter assembly of a motor vehicle unit
DE102010021862B4 (en) 2010-05-28 2018-01-11 Mann + Hummel Gmbh air filter
AT510333A1 (en) * 2010-09-14 2012-03-15 Eg1 Tuning Ltd COLD AIR FILTER BOX
CZ2013963A3 (en) * 2013-12-04 2015-06-17 Ĺ koda Auto a. s. Jet separator
DE102013018166B4 (en) * 2013-12-05 2021-12-09 Mann+Hummel Gmbh Filter system with water outlet
DE102015121464B4 (en) * 2015-12-09 2021-11-18 Binder Gmbh Condensation separator
DE102016009059A1 (en) 2016-07-26 2018-02-01 Daimler Ag Intake tract for an internal combustion engine of a motor vehicle
US10258917B1 (en) * 2018-02-09 2019-04-16 Tenneco Automotive Operating Company Inc. System for removing water and particulates from engine exhaust
CN112963275B (en) * 2020-12-30 2023-06-13 重庆宗申创新技术研究院有限公司 Motorcycle and engine air inlet system and air filter thereof

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1980522A (en) * 1930-06-25 1934-11-13 Centrifix Corp Apparatus for the treatment of gases
US3386229A (en) * 1965-07-22 1968-06-04 Joy Mfg Co Apparatus and method for treatment of gases
US3350322A (en) * 1965-08-27 1967-10-31 Mack Trucks Air cleaner water extraction device
JPS5256215A (en) * 1975-10-31 1977-05-09 Nissan Motor Co Ltd Air intake apparatus for engine in motor boat
DE3130782A1 (en) * 1981-08-04 1983-02-24 Fiat Veicoli Industriali S.p.A., 10100 Torino Valve for draining water off from the internal chamber of an air filter
US4574874A (en) * 1983-04-07 1986-03-11 Pan Tech Management Corp. Chemisorption air conditioner
US4548166A (en) * 1985-01-07 1985-10-22 General Motors Corporation Engine air cleaner and duct arrangement
US5037459A (en) * 1988-10-07 1991-08-06 Philip Morris Management Corp. Device for controlling relative humidity within a substantially sealed container
US5137555A (en) * 1988-12-22 1992-08-11 Peerless Manufacturing Company Frontal drain for a marine mist extractor
US5180406A (en) * 1991-08-16 1993-01-19 Shih Chin Tai Muffler for exhaust gases of a diesel engine
US5201919A (en) * 1991-12-17 1993-04-13 Inline Scrubber Corporation Integral in-line gas scrubber
US5437786A (en) * 1994-02-14 1995-08-01 Stormtreat Systems, Inc. Stormwater treatment system/apparatus
AUPM777294A0 (en) * 1994-08-30 1994-09-22 William Allen Trusts Pty Ltd Spaced evaporative wicks within an air cooler
US5507858A (en) 1994-09-26 1996-04-16 Ohio University Liquid/gas separator and slug flow eliminator and process for use
JPH0976973A (en) * 1995-09-11 1997-03-25 Yamaha Motor Co Ltd Air intake device of motorcycle
US5871562A (en) * 1997-07-16 1999-02-16 Culoso; Richard Air conditioning odor control apparatus and method
DE19748717A1 (en) * 1997-11-05 1999-05-06 Opel Adam Ag Water entry prevention device for air filter casing

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DE50009417D1 (en) 2005-03-10
US6521008B1 (en) 2003-02-18
JP2003508678A (en) 2003-03-04
KR20010080949A (en) 2001-08-25
EP1131550A1 (en) 2001-09-12
WO2001018379A1 (en) 2001-03-15

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