DE19545979A1 - Air filter on intake for vehicle engine - Google Patents

Air filter on intake for vehicle engine

Info

Publication number
DE19545979A1
DE19545979A1 DE1995145979 DE19545979A DE19545979A1 DE 19545979 A1 DE19545979 A1 DE 19545979A1 DE 1995145979 DE1995145979 DE 1995145979 DE 19545979 A DE19545979 A DE 19545979A DE 19545979 A1 DE19545979 A1 DE 19545979A1
Authority
DE
Germany
Prior art keywords
intake
air
water
flap
tube
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.)
Granted
Application number
DE1995145979
Other languages
German (de)
Other versions
DE19545979C2 (en
Inventor
Peter Binz
Helmuth Gutjahr
Martin Haberstock
Hans Jensen
Wolfgang Nobis
Michael Pleschberger
Berthold Pscheidt
Klaus Schweikert
Horst Wagner
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.)
Mahle Filtersysteme GmbH
Original Assignee
Bayerische Motoren Werke AG
Knecht Filterwerk 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 Bayerische Motoren Werke AG, Knecht Filterwerk GmbH filed Critical Bayerische Motoren Werke AG
Priority to DE1995145979 priority Critical patent/DE19545979C2/en
Publication of DE19545979A1 publication Critical patent/DE19545979A1/en
Application granted granted Critical
Publication of DE19545979C2 publication Critical patent/DE19545979C2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • F02M35/16Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines characterised by use in vehicles
    • F02M35/161Arrangement of the air intake system in the engine compartment, e.g. with respect to the bonnet or the vehicle front face
    • 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
    • F02M35/10Air intakes; Induction systems
    • F02M35/10006Air intakes; Induction systems characterised by the position of elements of the air intake system in direction of the air intake flow, i.e. between ambient air inlet and supply to the combustion chamber
    • F02M35/10013Means upstream of the air filter; Connection to the ambient air
    • 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
    • F02M35/10Air intakes; Induction systems
    • F02M35/10242Devices or means connected to or integrated into air intakes; Air intakes combined with other engine or vehicle parts
    • F02M35/10301Flexible, resilient, pivotally or movable parts; Membranes
    • 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
    • F02M35/10Air intakes; Induction systems
    • F02M35/10373Sensors for intake systems
    • F02M35/10393Sensors for intake systems for characterising a multi-component mixture, e.g. for the composition such as humidity, density or viscosity

Abstract

The air is drawn into the interior of the air filter (1) via main and auxiliary air intakes (2,3). The air enters the main intake via an aperture (4) at the front of the vehicle and passes through a valve unit. There is a pipe (8) extending vertically downward from the valve unit. When the vehicle passes through a flood, the lower end of the pipe scoops up water which acts to close the valve and air is then drawn in only through the upper air intake (6,7) in the top of the bonnet. The valve may consist of a hinged flap connected to an expanding body such as a bellows.

Description

Die Erfindung betrifft eine Einrichtung zur Zufuhr von An­ saugluft in den Rohraum eines Luftansaugfilter-Gehäuses ei­ nes Kraftfahrzeugmotors.The invention relates to a device for supplying to suction air into the tube space of an air intake filter housing nes motor vehicle engine.
Die Ansaugöffnung einer derartigen Einrichtung liegt bei Kraftfahrzeugen üblicherweise in einer Höhe, bei der beim Fahren des Kraftfahrzeuges durch auf dem Fahrweg stehendes Wasser dieses nicht in die Ansaugöffnung eindringen kann.The suction opening of such a device is included Motor vehicles usually at a height at which Driving the motor vehicle by standing on the road Water cannot penetrate the suction opening.
Zu einem Eindringen von Wasser in die Ansaugöffnung kann es jedoch kommen, wenn ein Fahrzeug, insbesondere ein Personen­ kraftwagen mit einem niedrigen Motorraum, durch extrem hoch­ stehendes Wasser fährt. Solche Fälle können bei schlechten Fahrwegen oder auch im Falle von Überschwemmungen vorkommen.Water can enter the suction opening however, come when a vehicle, especially a person motor vehicles with a low engine compartment, due to extremely high stagnant water moves. Such cases can be bad Driveways or in the event of flooding.
Hier Abhilfe zu schaffen, ohne die Ansaugöffnung generell an eine für den normalen Fahrzeugbetrieb ungünstig hohe Stelle legen zu müssen, ist das Problem, mit dem sich die Erfindung beschäftigt. To remedy this without generally opening the intake opening a position that is unfavorably high for normal vehicle operation Having to lay is the problem with which the invention is concerned employed.  
Eine Lösung hierfür zeigt eine Ausführung nach den kenn­ zeichnenden Merkmalen des Patentanspruchs 1 auf.A solution for this is shown in an execution according to the kenn drawing features of claim 1.
Diese Lösung beruht auf dem Gedanken, die für den Normalbe­ trieb wirksame Ansaugöffnung durch auf dem Fahrweg extrem hoch stehendes Wasser automatisch durch das anstehende Was­ ser selbst verschließen zu lassen. Bei verschlossener Haupt- Ansaugöffnung kann dann weiterhin durch eine kleinere höher und damit sicher vor einem Wassereintritt gelegene Nebenöff­ nung Ansaugluft angesaugt werden. Für einen solchen Fall, der praktisch nur eine Notsituation darstellt, genügt dann ein geringerer Luftansaugstrom, der im Prinzip lediglich so groß sein muß, daß ein Fahrbetrieb durch den Motor gerade noch sicher gewährleistet ist.This solution is based on the idea that is for the normal effective suction opening through on the driveway extremely high water automatically by what is pending to have it sealed itself. When the main Intake opening can then continue through a smaller higher and thus secondary openings that are safe from water ingress Intake air can be sucked in. In such a case, which is practically only an emergency situation is then sufficient a lower air intake flow, which in principle is only so must be large that driving by the engine straight is still guaranteed.
Zweckmäßige Ausgestaltungen der erfindungsgemäßen Lösung sind Gegenstand der Unteransprüche und werden im Zusammen­ hang mit der Beschreibung eines Ausführungsbeispieles noch im einzelnen erläutert werden.Appropriate configurations of the solution according to the invention are the subject of the subclaims and are together hang with the description of an embodiment are explained in detail.
Ein solches Ausführungsbeispiel ist in der Zeichnung darge­ stellt. Such an embodiment is shown in the drawing poses.  
Es zeigenShow it
Fig. 1 die Anordnung einer erfindungsgemäßen Ansaugluftein­ richtung im Motorraum eines Personenkraftwagens in schematischer Darstellung, Fig. 1 shows the arrangement according to the invention a Ansaugluftein direction in the engine compartment of a passenger car in a schematic representation;
Fig. 2 einen Längsschnitt durch die Ansaugeinrichtung nach Fig. 1. FIG. 2 shows a longitudinal section through the suction device according to FIG. 1.
In Fahrtrichtung vor dem Motor ist in dem Motorraum eines Kraftfahrzeuges ein Luftfilter-Gehäuse 1 mit einem Hauptan­ saugstutzen 2 und einem Nebenansaugstutzen 3 angeordnet. Der Hauptansaugstutzen 2 besitzt eine an dem vorderen Ende des Motorraumes liegende Ansaugöffnung 4. Der Nebenansaugstutzen 3 ist nach lotrecht oben gerichtet und besitzt eine Ansau­ göffnung 5, die oberhalb der Ansaugöffnung 4 liegt. An die Ansaugöffnung 5 kann noch eine Verlängerungsleitung 6 ange­ schlossen sein, die noch eine weiter oben liegende An­ saugöffnung 7 besitzt.In the direction of travel in front of the engine, an air filter housing 1 is arranged in the engine compartment of a motor vehicle with a Hauptan intake port 2 and a secondary intake port 3 . The main intake manifold 2 has an intake opening 4 located at the front end of the engine compartment. The secondary intake 3 is directed vertically above and has a suction opening 5 , which lies above the suction opening 4 . At the suction opening 5 , an extension line 6 can be connected, which still has a higher-lying suction opening 7 .
Unterhalb des Hauptansaugstutzens 2 ist ein nach unten offe­ nes Rohr 8 vorgesehen. In dieses Rohr kann Wasser eindrin­ gen, wenn dieses auf dem Fahruntergrund entsprechend hoch ansteht, wie dies in Fig. 1 angedeutet ist. Das untere Ende dieses Rohres 8 kann in Fahrtrichtung gekrümmt sein, wie es in Fig. 1 strichpunktiert angedeutet ist. Dadurch kann der von in das Rohr 8 hineinreichendem Wasser ausgehende stati­ sche Druck noch durch einen von der Fahrgeschwindigkeit er­ zeugten dynamischen Zusatzdruck erhöht werden.Below the main intake 2 , a downwardly open tube 8 is provided. Water can penetrate into this tube if it stands high on the driving surface, as indicated in FIG. 1. The lower end of this tube 8 can be curved in the direction of travel, as is indicated by dash-dotted lines in FIG. 1. As a result, the static pressure coming from the pipe 8 into the water can be increased by a dynamic additional pressure generated by the driving speed.
Das obere offene Ende des Rohres 8 ist über einen dicht mit dem Rohr verbundenen Faltenbalg 9 dicht mit einer schwenkba­ ren Klappe 10 verbunden. Die Klappe 10 ist in den Hauptan­ saugstutzen 2 hinein schwenkbar. Bei voll in den Hauptan­ saugstutzen 2 eingeschwenkter Position verschließt die Klap­ pe 10 den Strömungsquerschnitt des Hauptstutzens 2. Um einen dichten Verschluß zu gewährleisten, sind in den Hauptansaug­ stutzen 2 ebene Anlageflächen 11 eingeformt, an denen die Klappe 10 über eine an dieser befestigte Dichtung 12 dicht anliegen kann.The upper open end of the tube 8 is tightly connected via a bellows 9 connected to the tube tightly with a schwenkba ren flap 10 . The flap 10 can be swiveled into the main inlet 2 . When fully in the suction nozzle 2 Hauptan the pivoted position closes the Klap pe 10 the flow cross section of the main nozzle. 2 In order to ensure a tight seal, 2 flat contact surfaces 11 are formed in the main intake, on which the flap 10 can fit tightly via a seal 12 attached to it.
Die Klappe 10 ist durch eine Feder 13 in Offenstellung vor­ gespannt. In dieser Offenstellung stellt sie ein Teil der Außenwand des Hauptansaugstutzens 2 dar, wodurch bei offener Klappe 10 ein umfangsmäßig dicht geschlossener Hauptansaug­ stutzen 2 vorliegt.The flap 10 is tensioned by a spring 13 in the open position. In this open position, it represents part of the outer wall of the main intake 2 , so that when the flap 10 is open, a circumferentially tightly closed main intake 2 is present.
Fährt das Fahrzeug durch derart hohes Wasser, daß dieses in das Rohr 8 eindringt, so bewirkt die Kraft des eingedrunge­ nen Wassers eine Luftverdrängung in Richtung der Klappe 10. Dadurch wird die Klappe 10 in Schließstellung bewegt, indem sich der Faltenbalg 9 entsprechend ausdehnt. Bei geschlosse­ ner Klappe 10 saugt der Motor die notwendige Verbrennungs­ luft ausschließlich über den Nebenansaugstutzen 3 mit der hoch liegenden Ansaugöffnung 5 an. Bei geöffneter Klappe 10, das heißt bei üblichen Fahrten des Kraftfahrzeuges, bei de­ nen kein in das Rohr 8 hinein ragendes Wasser auf dem Fahruntergrund vorhanden ist, erfolgt das Ansaugen zum über­ wiegenden Teil durch den Hauptansaugstutzen 2, wobei ein ge­ ringer Teil der Ansaugluft auch über den Nebenansaugstutzen 3 dem Filtergehäuse zugeführt wird.If the vehicle travels through such high water that it penetrates into the tube 8 , the force of the water penetrated causes an air displacement in the direction of the flap 10 . As a result, the flap 10 is moved into the closed position by the bellows 9 expanding accordingly. When the valve 10 is closed, the engine sucks the necessary combustion air exclusively through the secondary intake 3 with the intake port 5 located high. When the flap 10 is open, that is to say during normal motor vehicle journeys, in which there is no water protruding into the tube 8 on the driving surface, the suction takes place to the predominant part through the main intake pipe 2 , with a small part of the intake air also is fed to the filter housing via the secondary intake 3 .
Eine geschlossene Position der Klappe 10, die durch ein Fah­ ren durch tiefes Wasser bedingt ist, wird durch den dann in dem Rohraum des Filters entstehenden hohen Unterdruck, der durch die geringe Menge an angesaugter Luft durch den Neben­ ansaugstutzen 3 verursacht ist, in der Schließwirkung noch zusätzlich unterstützt. Sobald das Fahrzeug nicht mehr in derart tiefem Wasser fährt, daß das Rohr 8 in das Wasser eintaucht, öffnet sich die Klappe 10 unter der Vorspannung der Feder 13 automatisch. Dies wird auch nicht durch einen Unterdruck in dem Rohraum des Filtergehäuses 1 grundsätzlich verhindert, da bei Motorlastwechseln der Unterdruck zumin­ dest zeitweise verloren geht.A closed position of the flap 10 , which is caused by driving through deep water, is caused by the high vacuum then created in the tube space of the filter, which is caused by the small amount of air sucked in by the secondary intake 3 , in the closing action additionally supported. As soon as the vehicle no longer travels in such deep water that the tube 8 is immersed in the water, the flap 10 opens automatically under the bias of the spring 13 . This is also not fundamentally prevented by a vacuum in the tube chamber of the filter housing 1 , since the vacuum is at least temporarily lost when the engine load changes.
Da vor einem Schließen des Hauptansaugstutzens 2 Spritzwas­ ser in den Rohraum des Filtergehäuses 1 eintreten kann, ist dieses Gehäuse an der untersten Stelle mit einem unter im Inneren des Rohraumes anstehendem Wasser sich selbständig öffnenden Abflußventil 14 versehen. In seiner einfachsten Ausführungsform kann dies ein sogenanntes Lippenventil sein.Since before the main intake 2 Spritzwas water can enter the tube space of the filter housing 1 , this housing is provided at the lowest point with a water opening in the interior of the tube space automatically opening drain valve 14 . In its simplest embodiment, this can be a so-called lip valve.

Claims (7)

1. Einrichtung zur Zufuhr von Ansaugluft in den Rohraum eines Luftansaugfilter-Gehäuses eines Kraftfahrzeugmotors, gekennzeichnet durch die Merkmale
  • - die Ansaugluft wird in den Rohraum des Luftansaugfilters (1) über einen Haupt- und mindestens einen Nebeneinlaß (2) bzw. (3) angesaugt,
  • - die Ansaugöffnung (5) des Nebeneinlasses (3) liegt lot­ recht höher als diejenige (4) des Haupteinlasses (2),
  • - der Haupteinlaß (2) ist mit einer Schließeinrichtung (10) ausgerüstet,
  • - die Schließeinrichtung (10) schließt bei in Wasser einge­ tauchtem Fahrzeug ab einer vorgebbaren Wasserhöhe.
1. Device for supplying intake air into the tube space of an air intake filter housing of a motor vehicle engine, characterized by the features
  • - The intake air is drawn into the tube space of the air intake filter ( 1 ) via a main and at least one secondary inlet ( 2 ) or ( 3 ),
  • - The suction opening ( 5 ) of the secondary inlet ( 3 ) is a lot higher than that ( 4 ) of the main inlet ( 2 ),
  • - The main inlet ( 2 ) is equipped with a locking device ( 10 ),
  • - The locking device ( 10 ) closes when the vehicle is immersed in water from a predetermined water level.
2. Einrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Schließeinrichtung eine schwenkbare Klappe (10) ist und hydraulisch unter dem Druck von über dem Fahrweg des Fahrzeuges stehendem Wasser automatisch geschlossen wird.2. Device according to claim 1, characterized in that the closing device is a pivotable flap ( 10 ) and is automatically closed hydraulically under the pressure of water standing over the travel path of the vehicle.
3. Einrichtung nach Anspruch 2, dadurch gekennzeichnet, daß für das hydraulische Verschließen der Klappe (10) ein nach unten lotrecht offenes Rohr (8) vorgesehen ist, dessen oberes Ende über einen dicht angeschlossenen Dehnkörper (9) mit der schwenkbaren Klappe (10) verbunden ist.3. Device according to claim 2, characterized in that for the hydraulic closing of the flap ( 10 ) a downwardly vertically open tube ( 8 ) is provided, the upper end of which is connected to the pivotable flap ( 10 ) via a tightly connected expansion body ( 9 ). connected is.
4. Einrichtung nach Anspruch 3, dadurch gekennzeichnet, daß der Dehnkörper ein Faltenbalg (9) ist.4. Device according to claim 3, characterized in that the expansion body is a bellows ( 9 ).
5. Einrichtung nach einem der Ansprüche 2 bis 4, dadurch gekennzeichnet, daß die schwenkbare Klappe (10) über eine Feder (13) in Of­ fenstellung vorgespannt ist.5. Device according to one of claims 2 to 4, characterized in that the pivotable flap ( 10 ) via a spring ( 13 ) is biased in the open position.
6. Einrichtung nach einem der Ansprüche 2 bis 5, dadurch gekennzeichnet, daß der Rand der Klappe (10) mit einer umlaufenden Dichtung (12) zur dichten Anlage in Offen- und Schließstellung verse­ hen ist.6. Device according to one of claims 2 to 5, characterized in that the edge of the flap ( 10 ) is hen with a circumferential seal ( 12 ) for tight contact in the open and closed position verses.
7. Einrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Rohraum des Filtergehäuses (1) an einer untersten Stelle mit einem unter dem Druck von in dem Rohraum anste­ hendem Wasser öffnenden Ablaufventil, das insbesondere ein Lippenventil (14) ist, versehen ist.7. Device according to one of the preceding claims, characterized in that the tube space of the filter housing ( 1 ) is provided at a lowermost point with a drain valve which opens under the pressure of water present in the tube space and which is in particular a lip valve ( 14 ) .
DE1995145979 1995-12-09 1995-12-09 Air intake filter device for a motor vehicle engine Expired - Lifetime DE19545979C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE1995145979 DE19545979C2 (en) 1995-12-09 1995-12-09 Air intake filter device for a motor vehicle engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1995145979 DE19545979C2 (en) 1995-12-09 1995-12-09 Air intake filter device for a motor vehicle engine

Publications (2)

Publication Number Publication Date
DE19545979A1 true DE19545979A1 (en) 1997-06-12
DE19545979C2 DE19545979C2 (en) 2002-06-06

Family

ID=7779650

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1995145979 Expired - Lifetime DE19545979C2 (en) 1995-12-09 1995-12-09 Air intake filter device for a motor vehicle engine

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DE (1) DE19545979C2 (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19730188A1 (en) * 1997-07-15 1999-01-21 Opel Adam Ag Water leakage prevention device for air filter housing of IC engine
GB2365064A (en) * 2000-07-20 2002-02-13 Land Rover Group Ltd Motor vehicle engine air intake duct for preventing intake of water when driving through floods
US7393372B2 (en) 2005-02-03 2008-07-01 Visteon Global Technologies, Inc. Air cleaner for an air induction assembly having primary and secondary inlets
FR2929341A1 (en) * 2008-03-28 2009-10-02 Peugeot Citroen Automobiles Sa Air inletting device for engine of vehicle, has float for detecting water level at exterior of vehicle and actuating valve that closes main air inlet, and secondary air inlet that is closed when main air inlet is opened and vice versa
WO2013104468A1 (en) * 2012-01-13 2013-07-18 Renault Sas Air intake system for supplying air to the heat engine of a vehicle
EP2604845A3 (en) * 2011-12-16 2015-12-16 MAHLE Filter Systems Japan Corporation Intake apparatus for internal combustion engine
DE102016201518B3 (en) * 2016-02-02 2017-05-04 Bayerische Motoren Werke Aktiengesellschaft Air duct system of an internal combustion engine
DE102018129957A1 (en) 2018-11-27 2020-05-28 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Motor vehicle

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD262064A1 (en) * 1987-07-06 1988-11-16 Ifa Automobilwerke Veb Automatic air filter heater
DE3736777C1 (en) * 1987-10-30 1988-12-15 Daimler Benz Ag Device for avoiding the ingress of water into an air filter housing
US5195484A (en) * 1991-10-24 1993-03-23 General Motors Corporation Air cleaner and snorkel assembly
DE4413765A1 (en) * 1993-05-11 1994-11-17 Mann & Hummel Filter Air filter for internal combustion engines

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD262064A1 (en) * 1987-07-06 1988-11-16 Ifa Automobilwerke Veb Automatic air filter heater
DE3736777C1 (en) * 1987-10-30 1988-12-15 Daimler Benz Ag Device for avoiding the ingress of water into an air filter housing
US5195484A (en) * 1991-10-24 1993-03-23 General Motors Corporation Air cleaner and snorkel assembly
DE4413765A1 (en) * 1993-05-11 1994-11-17 Mann & Hummel Filter Air filter for internal combustion engines

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19730188A1 (en) * 1997-07-15 1999-01-21 Opel Adam Ag Water leakage prevention device for air filter housing of IC engine
GB2365064A (en) * 2000-07-20 2002-02-13 Land Rover Group Ltd Motor vehicle engine air intake duct for preventing intake of water when driving through floods
GB2365064B (en) * 2000-07-20 2003-12-10 Land Rover Group Ltd Air intake duct
US7393372B2 (en) 2005-02-03 2008-07-01 Visteon Global Technologies, Inc. Air cleaner for an air induction assembly having primary and secondary inlets
FR2929341A1 (en) * 2008-03-28 2009-10-02 Peugeot Citroen Automobiles Sa Air inletting device for engine of vehicle, has float for detecting water level at exterior of vehicle and actuating valve that closes main air inlet, and secondary air inlet that is closed when main air inlet is opened and vice versa
EP2604845A3 (en) * 2011-12-16 2015-12-16 MAHLE Filter Systems Japan Corporation Intake apparatus for internal combustion engine
WO2013104468A1 (en) * 2012-01-13 2013-07-18 Renault Sas Air intake system for supplying air to the heat engine of a vehicle
FR2985784A1 (en) * 2012-01-13 2013-07-19 Renault Sa Air intake system for the air supply of a thermal motor of a vehicle
DE102016201518B3 (en) * 2016-02-02 2017-05-04 Bayerische Motoren Werke Aktiengesellschaft Air duct system of an internal combustion engine
US10683833B2 (en) 2016-02-02 2020-06-16 Bayerische Motoren Werke Aktiengesellschaft Air conduction system of an internal combustion engine
DE102018129957A1 (en) 2018-11-27 2020-05-28 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Motor vehicle
DE102018129957B4 (en) 2018-11-27 2020-07-02 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Motor vehicle

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