DE4302659C1 - Induction air guide for vehicle combustion engine - has exchangeable, insertable throttle as diffusor forming annular space with guidance channel and held in place by burls - Google Patents

Induction air guide for vehicle combustion engine - has exchangeable, insertable throttle as diffusor forming annular space with guidance channel and held in place by burls

Info

Publication number
DE4302659C1
DE4302659C1 DE19934302659 DE4302659A DE4302659C1 DE 4302659 C1 DE4302659 C1 DE 4302659C1 DE 19934302659 DE19934302659 DE 19934302659 DE 4302659 A DE4302659 A DE 4302659A DE 4302659 C1 DE4302659 C1 DE 4302659C1
Authority
DE
Germany
Prior art keywords
throttle
air duct
combustion engine
annular space
intake
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
DE19934302659
Other languages
German (de)
Inventor
Christoph Dipl Ing Semmler
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.)
Mercedes Benz Group AG
Original Assignee
Daimler Benz AG
Mercedes Benz 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 Daimler Benz AG, Mercedes Benz AG filed Critical Daimler Benz AG
Priority to DE19934302659 priority Critical patent/DE4302659C1/en
Application granted granted Critical
Publication of DE4302659C1 publication Critical patent/DE4302659C1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10—Air intakes; Induction systems
    • F02M35/10006—Air 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
    • F02M35/10013—Means upstream of the air filter; Connection to the ambient air
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K13/00—Arrangement in connection with combustion air intake or gas exhaust of propulsion units
    • B60K13/02—Arrangement in connection with combustion air intake or gas exhaust of propulsion units concerning intake
    • 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
    • F02M35/10118—Air intakes; Induction systems characterised by details of intake ducts: shapes; connections; arrangements with variable cross-sections of intake ducts along their length; Venturis; Diffusers
    • 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
    • F02M35/12—Intake silencers ; Sound modulation, transmission or amplification
    • F02M35/1255—Intake silencers ; Sound modulation, transmission or amplification using resonance
    • 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
    • F02M35/16—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines characterised by use in vehicles
    • F02M35/161—Arrangement of the air intake system in the engine compartment, e.g. with respect to the bonnet or the vehicle front face

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
  • Exhaust Silencers (AREA)

Abstract

The air guidance channel (6) forming an integral part of the vehicle has an exchangeable throttle insert (12) matched to the required induction air throughout for the engine. The throttle is made as a diffuser and together with the air guidance channel forms an annular space (15). The annular space serves to damp out the induction air noise. The throttle insert is held in position in the channel by easily releasable burls (16). ADVANTAGE - Allows a diffuser for a specific engine variant to be fitted at minimal cost.

Description

Die Erfindung betrifft eine Ansaugluftführung für einen Ver­ brennungsmotor in einem Kraftfahrzeug gemäß dem Oberbegriff des Patentanspruches 1.The invention relates to an intake air duct for a Ver internal combustion engine in a motor vehicle according to the preamble of Claim 1.

Wie aus dem DE-GM 92 02 785 erkennbar ist, wird durch die beengten Platzverhältnisse im Motorraum eines Kraftfahrzeuges mit Verbrennungsmotor eine spezielle Form der Ansaugluftführung entsprechend der jeweiligen Einbauverhältnisse erzwungen, wobei diese Luftführung von einem Luftführungskanal übernommen wird. Um optimale Bedingungen im Ansaugsystem herzustellen muß der Querschnitt des Luftführungskanales dem erforderlichen Ansaug­ luftbedarf des jeweiligen Verbrennungsmotor angepaßt sein. Da­ mit werden auch innerhalb einer Fahrzeugbaureihe, entsprechend der in dieser Baureihe verwendeten Motorvarianten verschiedene Ausführungen des Luftführungskanales benötigt, wodurch deren Teileanzahl erhöht wird.As can be seen from DE-GM 92 02 785, the cramped space in the engine compartment of a motor vehicle with combustion engine a special form of intake air ducting enforced according to the respective installation conditions, whereby this air duct is taken over by an air duct. In order to create optimal conditions in the intake system Cross section of the air duct to the required intake air requirement of the respective internal combustion engine to be adjusted. There with also within a vehicle series, accordingly different engine variants used in this series Versions of the air duct required, whereby their Number of parts is increased.

Eine Drosseleinrichtung in Gestalt einer düsenartigen Verengung in der Ansaugleitung eines Verbrennungsmotores ist aus dem DE-GM 16 75 983 bekannt. Durch eine derartige Drosselung des Ansaugquerschnittes wird die Leistung des betreffenden Ver­ brennungsmotores auf ein bestimmtes Maß begrenzt.A throttle device in the form of a nozzle-like constriction in the intake line of an internal combustion engine is from the DE-GM 16 75 983 known. By throttling the Intake cross section is the performance of the relevant Ver internal combustion engine limited to a certain size.

An dieser Einrichtung ist es jedoch nachteilig, daß die Drossel mit dem Ansaugrohr ein Bauteil bildet, wodurch für unterschied­ liche Drosselquerschnitte jeweils unterschiedliche Ansaugrohre erforderlich sind. Nachteilig ist es außerdem, daß die in der Drosselstelle infolge der Luftströmungen entstehenden Geräusche direkt über die Rohrwandung in die Umgebung übertragen werden.In this device, however, it is disadvantageous that the throttle forms a component with the intake manifold, making for difference throttle cross-sections different intake pipes required are. It is also disadvantageous that the in the  Throttling point as a result of the air currents can be transferred directly to the environment via the pipe wall.

Der Erfindung liegt die Aufgabe zugrunde, einen in ein Kraft­ fahrzeug integrierten Luftführungskanal für die Ansaugluft mit minimalen Aufwand unterschiedlichen Motorvarianten anzupassen. Neben optimalen Strömungsverhältnissen ist dabei eine möglichst wirkungsvolle Ansauggeräuschdämpfung zu erzielen.The invention has for its object one in a force vehicle-integrated air duct for the intake air with minimal effort to adapt to different engine variants. In addition to optimal flow conditions, one is possible to achieve effective intake noise reduction.

Erfindungsgemäß wird die Aufgabe mit den kennzeichnenden Merk­ malen des Patentanspruches 1 gelöst, wobei die Merkmale der Unteransprüche vorteilhafte Aus- und Weiterbildungen kenn­ zeichnen.According to the invention the task with the characteristic note  paint the claim 1, the characteristics of Advantageous training and further education to draw.

Durch die erfindungsgemäße Lösung kann für eine Fahrzeugbau­ reihe ein einheitlicher Luftführungskanal verwendet werden, welcher durch das Einsetzen eines Drosseleinsatzes in einfacher Weise unterschiedlichen Motorisierungsvarianten angepaßt wird. Dabei wird durch den verengten Drosselquerschnitt sowie einem zusätzlichen Resonanzvolumen zwischen dem Drosseleinsatz und dem Luftführungskanal die Ansauggeräuschdämpfung verbessert.The solution according to the invention can be used for vehicle construction a uniform air duct can be used which is easier by inserting a throttle insert How different engine variants are adapted. This is due to the narrowed throttle cross section and a additional resonance volume between the throttle insert and the air duct improves the intake noise damping.

Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung schematisch dargestellt und wird im folgenden näher be­ schrieben.An embodiment of the invention is in the drawing is shown schematically and will be described in more detail below wrote.

Es zeigt einen Schnitt durch eine erfindungsgemäße Ansaugluft­ führung im vorderen Bereich des mit dem Bezugszeichen 1 gekenn­ zeichneten Motorraumes eines Kraftfahrzeuges, wobei das Kraft­ fahrzeug einer mit unterschiedlichen Verbrennungsmotoren aus­ rüstbaren Fahrzeugbaureihe zuzuordnen ist.It shows a section through an intake air guide according to the invention in the front region of the engine compartment of a motor vehicle marked with the reference number 1 , the motor vehicle being assigned to a vehicle series which can be equipped with different internal combustion engines.

Der Motorraum wird an seiner Vorderseite von einer Kühlermaske 2 und in seinen seitlichen Bereichen von Karosserieteilen wie eine Leuchteneinheit 3 und einer Seitenwand 4 begrenzt. Weiter­ hin ist in dem dargestellten Teil des Motorraumes 1 ein Wärme­ tauscher 5 aufgenommen, welcher von der durch die Kühlermaske 2 eintretenden Frischluft durchströmt wird. In dem Bereich zwi­ schen Wärmetauscher 5 und Seitenwand 4 ist ein aus dem Bereich der Kühlermaske 2 anströmbarer Luftführungskanal 6 für die An­ saugluft des Verbrennungsmotors angeordnet. Dieser Luftfüh­ rungskanal 6 besteht aus einer abgewinkelten Lufthutze 7 an dem sich über eine Steckverbindung 8 ein Verbindungsrohr 9 an­ schließt. Im nicht dargestellten weiteren Verlauf mündet das Verbindungsrohr 9 in den Luftfilter des Verbrennungsmotores. The engine compartment is delimited on its front by a radiator mask 2 and in its lateral areas by body parts such as a lamp unit 3 and a side wall 4 . Further, in the part of the engine compartment 1 shown, a heat exchanger 5 is accommodated, through which the fresh air entering through the radiator mask 2 flows. In the area between heat exchanger 5 and side wall 4 , an air flow channel 6 that can be flowed from the area of the radiator grille 2 is arranged for the intake air of the internal combustion engine. This air guide duct 6 consists of an angled air scoop 7 to which a connecting pipe 9 closes via a plug connection 8 . In the further course, not shown, the connecting pipe 9 opens into the air filter of the internal combustion engine.

Der durchströmbare Querschnitt der Lufthutze 7 und des Verbin­ dungsrohres 9 entspricht dabei mindestens dem erforderlichen Ansaugquerschnitt der maximalen Motorisierungsvariante der be­ treffenden Fahrzeugbaureihe.The flow-through cross section of the air scoop 7 and the connec tion tube 9 corresponds at least to the required intake cross section of the maximum engine variant of the vehicle series concerned BE.

Die Teile des Luftführungskanales 6 sind über nicht darge­ stellte Verbindungselemente mit den angrenzenden Bauteilen, z. B. mit der Seitenwand 4 verbunden und in ihrer Lage gehalten. Durch Dichtprofile 10 werden die, für die einströmende Luft und Geräusche durchdringbare Zwischenräume 11 zu anderen Bauteilen, z. B. zum Wärmetauscher 5 überbrückt und abgedichtet.The parts of the air duct 6 are not Darge presented connecting elements with the adjacent components, for. B. connected to the side wall 4 and held in position. By means of sealing profiles 10 , the spaces 11 penetrable for the inflowing air and noise to other components, for. B. bridged to the heat exchanger 5 and sealed.

Im Inneren der Lufthutze 7 ist ein an die Innenkonturen der Lufthutze 7 eng anschließender Drosseleinsatz 12 eingesetzt, dessen Innenkontur diffusorartig ausgebildet ist und dessen durchströmbarer Querschnitt dem optimalen Ansaugquerschnitt des im jeweiligen Kraftfahrzeug verwendeten Verbrennungsmotores entspricht. Dabei kann durch den Drosseleinsatz 12 bzw. dessen diffusorartige Ausbildung der Ansaugquerschnitt an der engsten Drosselstelle 13 im Vergleich zu einer mit gleichbleibenden Querschnitt verlaufenden Ansaugleitung stärker reduziert wer­ den, da durch den Einlaufradius 14 bis zur Drosselstelle 13 sowie der anschließenden Querschnittserweiterung die Drossel­ verluste im Ansaugsystem minimiert werden. In der Folge dieses verengten Querschnittes wird eine verstärkte Ansauggeräusch­ dämpfung erreicht, wobei der zwischen Drosseleinsatz 12 und Lufthutze 7 vorhandene Ringraum 15 ein zusätzliches Resonanz­ volumen für eine weitere Minimierung der Ansauggeräusche dar­ stellt.In the interior of the air scoop 7 , a throttle insert 12 is inserted which closely adjoins the inner contours of the air scoop 7 , the inner contour of which is designed like a diffuser and the flowable cross section of which corresponds to the optimal intake cross section of the internal combustion engine used in the respective motor vehicle. The throttle insert 12 or its diffuser-like design allows the intake cross-section at the narrowest throttle point 13 to be more reduced compared to an intake line with a constant cross-section, since the throttle losses in the intake system are reduced by the inlet radius 14 to the throttle point 13 and the subsequent cross-sectional expansion be minimized. As a result of this narrowed cross section, increased intake noise damping is achieved, the annular space 15 present between throttle insert 12 and air scoop 7 representing an additional resonance volume for further minimizing intake noise.

Für jede der in der betreffenden Fahrzeugbaureihe verwendeten Verbrennungsmotoren kann ein in seinem Ansaugquerschnitt opti­ mierter Drosseleinsatz 12 eingesetzt werden, wobei die Bauteile des Luftführungskanales 6 für alle Motorisierungsvarianten un­ verändert bleiben. For each of the internal combustion engines used in the relevant vehicle series, an optimized throttle insert 12 can be used in its intake cross-section, the components of the air duct 6 remaining unchanged for all engine variants.

Der Drosseleinsatz 12 wird mittels geeigneter Befestigungsele­ mente, z. B. durch in die Lufthutze 7 einclipsbarer Noppen 16 in seiner Position gehalten.The throttle insert 12 is by means of suitable Befestigungsele elements, for. B. held in position in the air scoop 7 nubs 16 .

Claims (3)

1. Ansaugluftführung in einem Kraftfahrzeug mit einem Verbren­ nungsmotor, welche aus mindestens einem durchströmbaren Luft­ führungskanal gebildet ist, dadurch gekennzeichnet, daß in dem fahrzeugseitig integrierten Luftführungskanal (6) ein auswechselbarer auf den Ansaugluftdurchsatz des Ver­ brennungsmotores abgestimmter Drosseleinsatz (12) aufgenommen ist, der als Diffusor ausgebildet ist und mit dem Luftführungs­ kanal (6) einen das Ansauggeräusch dämpfenden Ringraum (15) bil­ det.1. Intake air duct in a motor vehicle with a combus- tion engine, which is formed from at least one flow-through air guide duct, characterized in that in the vehicle-side integrated air duct ( 6 ) a replaceable to the intake air throughput of the combustion engine Ver matched throttle insert ( 12 ) is added is designed as a diffuser and with the air duct ( 6 ) an annulus damping the intake noise ( 15 ) bil det. 2. Ansaugluftführung nach Anspruch 1, dadurch gekennzeichnet, daß der Drosseleinsatz (12) mit leicht lösbaren Verbindungs­ mitteln in seiner Position in dem Luftführungskanal (6) gehal­ ten ist.2. intake air duct according to claim 1, characterized in that the throttle insert ( 12 ) with easily releasable connecting means in its position in the air duct ( 6 ) is kept. 3. Ansaugluftführung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß der Einsatz mittels Noppen (16) in dem Luftführungskanal (6) eingeclipst ist.3. intake air duct according to claim 1 or 2, characterized in that the insert by means of knobs ( 16 ) in the air duct ( 6 ) is clipped.
DE19934302659 1993-01-30 1993-01-30 Induction air guide for vehicle combustion engine - has exchangeable, insertable throttle as diffusor forming annular space with guidance channel and held in place by burls Expired - Fee Related DE4302659C1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19934302659 DE4302659C1 (en) 1993-01-30 1993-01-30 Induction air guide for vehicle combustion engine - has exchangeable, insertable throttle as diffusor forming annular space with guidance channel and held in place by burls

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19934302659 DE4302659C1 (en) 1993-01-30 1993-01-30 Induction air guide for vehicle combustion engine - has exchangeable, insertable throttle as diffusor forming annular space with guidance channel and held in place by burls

Publications (1)

Publication Number Publication Date
DE4302659C1 true DE4302659C1 (en) 1994-04-21

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DE19934302659 Expired - Fee Related DE4302659C1 (en) 1993-01-30 1993-01-30 Induction air guide for vehicle combustion engine - has exchangeable, insertable throttle as diffusor forming annular space with guidance channel and held in place by burls

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19818237A1 (en) * 1998-04-23 1999-10-28 Volkswagen Ag Bulkhead for the combustion air of an internal combustion engine
DE10317224A1 (en) * 2003-04-15 2004-11-04 Bayerische Motoren Werke Ag Device for reducing noise emissions
EP1637726A1 (en) * 2004-09-17 2006-03-22 Bayerische Motoren Werke Aktiengesellschaft Arrangement of an air filter housing for an internal combustion engine in the motor compartment of a motor vehicle
DE19812565B4 (en) * 1998-03-21 2007-12-20 Mahle Filtersysteme Gmbh Air intake for an internal combustion engine of a motor vehicle

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1675983U (en) * 1953-12-04 1954-05-06 Zuendapp Werke G M B H COMBUSTION VEHICLE ENGINE, IN PARTICULAR FOR AUXILIARY MOTORCYCLES.
DE9202785U1 (en) * 1992-03-03 1992-04-23 Adam Opel AG, 6090 Rüsselsheim Structure for the engine air intake of internal combustion engines

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1675983U (en) * 1953-12-04 1954-05-06 Zuendapp Werke G M B H COMBUSTION VEHICLE ENGINE, IN PARTICULAR FOR AUXILIARY MOTORCYCLES.
DE9202785U1 (en) * 1992-03-03 1992-04-23 Adam Opel AG, 6090 Rüsselsheim Structure for the engine air intake of internal combustion engines

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19812565B4 (en) * 1998-03-21 2007-12-20 Mahle Filtersysteme Gmbh Air intake for an internal combustion engine of a motor vehicle
DE19818237A1 (en) * 1998-04-23 1999-10-28 Volkswagen Ag Bulkhead for the combustion air of an internal combustion engine
DE10317224A1 (en) * 2003-04-15 2004-11-04 Bayerische Motoren Werke Ag Device for reducing noise emissions
EP1637726A1 (en) * 2004-09-17 2006-03-22 Bayerische Motoren Werke Aktiengesellschaft Arrangement of an air filter housing for an internal combustion engine in the motor compartment of a motor vehicle

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Legal Events

Date Code Title Description
8100 Publication of the examined application without publication of unexamined application
D1 Grant (no unexamined application published) patent law 81
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: DAIMLER-BENZ AKTIENGESELLSCHAFT, 70567 STUTTGART,

8327 Change in the person/name/address of the patent owner

Owner name: DAIMLERCHRYSLER AG, 70567 STUTTGART, DE

8339 Ceased/non-payment of the annual fee