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DE19801394C1 - Charge intake for internal combustion engine - Google Patents

Charge intake for internal combustion engine

Info

Publication number
DE19801394C1
DE19801394C1 DE1998101394 DE19801394A DE19801394C1 DE 19801394 C1 DE19801394 C1 DE 19801394C1 DE 1998101394 DE1998101394 DE 1998101394 DE 19801394 A DE19801394 A DE 19801394A DE 19801394 C1 DE19801394 C1 DE 19801394C1
Authority
DE
Germany
Prior art keywords
cylinder
individual
volume
suction
suction system
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
DE1998101394
Other languages
German (de)
Inventor
Uwe Rohrberg
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
DaimlerChrysler 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 DaimlerChrysler AG filed Critical DaimlerChrysler AG
Priority to DE1998101394 priority Critical patent/DE19801394C1/en
Application granted granted Critical
Publication of DE19801394C1 publication Critical patent/DE19801394C1/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • F02M35/10Air intakes; Induction systems
    • F02M35/104Intake manifolds
    • F02M35/112Intake manifolds for engines with cylinders all in one line
    • 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
    • F02M35/10026Plenum chambers
    • F02M35/10052Plenum chambers special shapes or arrangements of plenum chambers; Constructional details
    • 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
    • F02M35/10091Air intakes; Induction systems characterised by details of intake ducts: shapes; connections; arrangements
    • F02M35/10131Ducts situated in more than one plane; Ducts of one plane crossing ducts of another plane

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Characterised By The Charging Evacuation (AREA)

Abstract

The intake has a manifold (1) with two angled faces (10,11) to which the intake pipes are alternatingly connected (12). Each cylinder has two intake ports (6,7) each connected to a respective pipe which attaches to an opposing angled face of the manifold.

Description

Die Erfindung betrifft eine Sauganlage für eine Brennkraftma­ schine entsprechend dem Oberbegriff des Anspruchs 1.The invention relates to a suction system for an internal combustion engine machine according to the preamble of claim 1.

Bei einer Sauganlage der gattungsgemäßen Art (DE 40 08 610 A1) be­ steht das Problem, daß das Sammelvolumen durch den Platzbedarf der angeschlossenen Einzelsaugrohre verhältnismäßig groß ist und nur schwierig z. B. im Motorraum eines Kraftfahrzeuges un­ tergebracht werden kann.In a suction system of the generic type (DE 40 08 610 A1) be the problem is that the collection volume due to space requirements of the connected individual suction pipes is relatively large and difficult z. B. in the engine compartment of a motor vehicle un can be brought.

Der Erfindung liegt die Aufgabe zugrunde, eine Sauganlage der gattungsgemäßen Art zu schaffen, bei der die Abmessungen des Sammelvolumens verringert sind.The invention has for its object a suction system Generic type in which the dimensions of the Collection volume are reduced.

Diese Aufgabe wird erfindungsgemäß durch die kennzeichnenden Merkmale des Anspruchs 1 gelöst.This object is achieved by the characterizing Features of claim 1 solved.

Durch den erfindungsgemäßen Vorschlag können die Abmessungen des Sammelvolumens gegenüber der üblichen Ausführung, bei der alle Einzelsaugrohre von einer ebenen Fläche des Sammelvolumens ausgehen, verringert werden.The dimensions according to the invention of the collection volume compared to the usual version, in which all individual suction pipes from a flat surface of the collecting volume going out, being reduced.

Die Einzelsaugrohre können so gekröpft sein, daß sich die bei­ den Einzelsaugrohre jedes Zylinders kreuzen und ihre Anschluß­ stellen am Zylinderkopf nebeneinander und ihre Anschlußstellen am Sammelvolumen übereinander liegen. Dadurch wird die Längser­ streckung des Sammelvolumens verkürzt. The individual suction pipes can be cranked so that the cross the individual intake pipes of each cylinder and their connection put side by side on the cylinder head and their connection points lie on top of each other in the collection volume. This will lengthen it extension of the collection volume shortened.  

Durch den erfindungsgemäßen Vorschlag für die Ausbildung des Sammelvolumens ergibt sich die Möglichkeit, den Einströmbereich der Einzelsaugrohre zum Sammelvolumen hin trichterförmig zu er­ weitern, ohne die Abmessungen des Sammelvolumens gegenüber der üblichen Ausführung zu vergrößern. Durch diese trichterförmige Ausbildung werden die Strömungsverluste verringert und der Ein­ strömvorgang verbessert.By the proposal for the training of the invention Collection volume gives the possibility of the inflow area of the individual suction pipes towards the collecting volume towards the funnel continue without the dimensions of the collection volume compared to the usual execution to enlarge. Through this funnel-shaped Training, the flow losses are reduced and the one flow process improved.

Vorzugsweise erstrecken sich die trichterförmigen Einströmbe­ reiche der Einzelsaugrohre etwa im rechten Winkel von ihren An­ schlußflächen am Sammelvolumen. Dadurch wird eine abrupte Rich­ tungsänderung der Strömung vermieden.The funnel-shaped inflows preferably extend range of the individual suction pipes approximately at a right angle from them end faces at the collection volume. This will make an abrupt rich change in the flow avoided.

Ein Ausführungsbeispiel der Erfindung wird im folgenden unter Bezugnahme auf die Zeichnung beschrieben.An embodiment of the invention is described below Described with reference to the drawing.

Fig. 1 zeigt eine Seitenansicht einer Sauganlage in Richtung des Pfeiles P in Fig. 2, und Fig. 1 shows a side view of a suction system in the direction of arrow P in Fig. 2, and

Fig. 2 zeigt eine Draufsicht der Sauganlage in perspektivi­ scher Darstellung. Fig. 2 shows a plan view of the suction system in perspectiv cal representation.

Die dargestellte Sauganlage ist für eine Vierzylinder-Brenn­ kraftmaschine mit zwei Ventilen pro Zylinder bestimmt. Sie weist ein Sammelvolumen 1 auf, in das eine Ansaugleitung 2 mün­ det und von dem für jeden Zylinder zwei Einzelsaugrohre 3 und 4 ausgehen, die in einem Flansch 5 münden, der an den nicht ge­ zeigten Zylinderkopf der Brennkraftmaschine angeschraubt wird. Dadurch kommen die Einzelsaugrohre mit ihren Mündungen 6 bzw. 7 in Verbindung mit den Einlaßkanälen im Zylinderkopf.The suction system shown is intended for a four-cylinder internal combustion engine with two valves per cylinder. It has a collection volume 1 into which an intake pipe 2 detects and from which two individual intake pipes 3 and 4 start for each cylinder, which open into a flange 5 which is screwed onto the cylinder head (not shown) of the internal combustion engine. As a result, the individual intake pipes come with their orifices 6 and 7 in connection with the inlet channels in the cylinder head.

Zur Verringerung des Strömungswiderstandes und zur Verbesserung des Einströmvorganges sind die Einströmbereiche 8 bzw. 9 der Einzelsaugrohre 3 und 4 zum Sammelvolumen 1 hin trichterförmig erweitert. In order to reduce the flow resistance and to improve the inflow process, the inflow regions 8 and 9 of the individual suction pipes 3 and 4 are expanded in a funnel shape towards the collecting volume 1 .

Um trotz des größeren Platzbedarfs der trichterförmigen Ein­ strömbereiche 7, 8 die Abmessungen des Sammelvolumens 1 klein zu halten, weist das Sammelvolumen zwei dachförmige, schräg aufeinander zu verlaufende Flächen 10 und 11 auf, in denen die Anschlußstellen 12 und 13 der Einzelsaugrohre 3, 4 liegen, wo­ bei von den beiden, einem Zylinder zugeordneten Einzelsaugroh­ ren das eine Einzelsaugrohr 3 von der Anschlußstelle 12 in der einen Fläche 10 und das andere Einzelsaugrohr 4 von der An­ schlußstelle 13 in der anderen Fläche 11 des Sammelvolumens 1 ausgeht. Dadurch wird die Breite des Sammelvolumens gegenüber einer Ausführung, bei der alle Einzelsaugrohre von einer ebenen Fläche des Sammelvolumens ausgehen, verringert.In order to keep the dimensions of the collecting volume 1 small in spite of the larger space requirement of the funnel-shaped flow regions 7 , 8, the collecting volume has two roof-shaped surfaces 10 and 11 which run obliquely towards one another and in which the connection points 12 and 13 of the individual suction pipes 3 , 4 are located Where, in the case of the two single suction pipes assigned to the cylinder, the one single suction pipe 3 from the connection point 12 in one surface 10 and the other single suction pipe 4 from the connection point 13 in the other surface 11 of the collecting volume 1 . As a result, the width of the collecting volume is reduced compared to an embodiment in which all the individual suction pipes start from a flat surface of the collecting volume.

Eine Verringerung der Länge des Sammelvolumens 1 wird dadurch erreicht, daß die beiden einem Zylinder zugeordneten Einzel­ saugrohre 3, 4 derart gekröpft sind, daß sie sich kreuzen und ihre trichterförmigen Einströmbereiche 8, 9 und damit ihre An­ schlußstellen 12, 13 am Sammelvolumen 1 direkt übereinander und nicht auch nebeneinander liegen.A reduction in the length of the collecting volume 1 is achieved in that the two individual intake pipes 3 , 4 assigned to a cylinder are cranked such that they intersect and their funnel-shaped inflow regions 8 , 9 and thus their connection points 12 , 13 on the collecting volume 1 directly one above the other and not lying next to each other.

Wie aus Fig. 1 ersichtlich, gehen die trichterförmigen Einström­ bereiche 8 und 9 der Einzelsaugrohre 3, 4 etwa im rechten Win­ kel von den Flächen 10, 11 aus, wodurch eine abrupte Rich­ tungsänderung der Ansaugströmung vermieden wird.As can be seen from Fig. 1, the funnel-shaped inflow areas 8 and 9 of the individual intake pipes 3 , 4 are approximately in the right angle from the surfaces 10 , 11 , whereby an abrupt change in direction of the intake flow is avoided.

Die Erfindung ist nicht auf das Ausführungsbeispiel beschränkt. Vielmehr bringt die dargestellte Form des Sammelvolumens und die Kröpfung der Einzelsaugrohre auch bei konventionellen Ein­ zelsaugrohren, die keine trichterförmigen Einströmbereiche ha­ ben, die gleichen Vorteile hinsichtlich der Abmessungen des Sammelvolumens.The invention is not restricted to the exemplary embodiment. Rather, the form of the collection volume and the cranking of the individual suction pipes also with conventional in cell suction tubes that have no funnel-shaped inflow areas ha ben, the same advantages in terms of dimensions of the Collection volume.

Claims (4)

1. Sauganlage für eine Brennkraftmaschine mit mindestens zwei Einlaßventilen pro Zylinder, mit einem Sammelvolumen (1), von dem für jeden Zylinder zwei Einzelsaugrohre (3, 4) ausgehen, die zu den Einlaßkanälen im Zylinderkopf führen, dadurch gekennzeichnet, daß das Sammelvolumen (1) zwei dachförmige, schräg aufeinander zu verlaufende Flächen (10, 11) aufweist, in denen die Anschluß­ stellen (12, 13) der Einzelsaugrohre (3, 4) vorgesehen sind, und daß jeweils eines der beiden einem Zylinder zugeordneten Ein­ zelsaugrohre (3, 4) von einer Anschlußstelle (12) in der einen Fläche (10) und das andere Einzelsaugrohr von einer Anschluß­ stelle (13) in der anderen Fläche (11) ausgeht.1. Suction system for an internal combustion engine with at least two intake valves per cylinder, with a collection volume ( 1 ), from which for each cylinder two individual intake pipes ( 3 , 4 ) that lead to the intake ports in the cylinder head, characterized in that the collection volume ( 1 roof-shaped) two obliquely toward each other running surfaces (10, 11), in which the connection points (12, 13) of the individual intake pipes (3, 4) are provided, and that in each case one of the two a cylinder associated with a zelsaugrohre (3, 4 ) from a connection point ( 12 ) in one surface ( 10 ) and the other single suction pipe from a connection point ( 13 ) in the other surface ( 11 ). 2. Sauganlage nach Anspruch 1, dadurch gekennzeichnet, daß die Einzelsaugrohre (3, 4) so gekröpft sind, daß sich die beiden Einzelsaugrohre jedes Zylinders kreuzen und ihre An­ schlußstellen (6, 7) am Zylinderkopf nebeneinander und ihre An­ schlußstellen (12, 13) am Sammelvolumen (1) übereinander liegen.2. Suction system according to claim 1, characterized in that the individual intake pipes ( 3 , 4 ) are cranked so that the two individual intake pipes of each cylinder cross and their connection points ( 6 , 7 ) on the cylinder head next to each other and their connection points ( 12 , 13th ) on top of each other on the collecting volume ( 1 ). 3. Sauganlage nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß der an das Sammelvolumen (1) angeschlossene Einströmbereich (8, 9) jedes Einzelsaugrohres (3, 4) zum Sammelvolumen (1) hin trichterförmig erweitert ist.3. Suction system according to claim 1 or 2, characterized in that the inflow region ( 8 , 9 ) connected to the collecting volume ( 1 ) of each individual suction pipe ( 3 , 4 ) is expanded in a funnel shape towards the collecting volume ( 1 ). 4. Sauganlage nach Anspruch 3, dadurch gekennzeichnet, daß sich die trichterförmigen Einströmbereiche (8, 9) der Ein­ zelsaugrohre (3, 4) etwa im rechten Winkel von den Flächen (10, 11) am Sammelvolumen (1) erstrecken.4. Suction system according to claim 3, characterized in that the funnel-shaped inflow regions ( 8 , 9 ) of a single suction tubes ( 3 , 4 ) extend approximately at right angles from the surfaces ( 10 , 11 ) on the collecting volume ( 1 ).
DE1998101394 1998-01-16 1998-01-16 Charge intake for internal combustion engine Expired - Fee Related DE19801394C1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE1998101394 DE19801394C1 (en) 1998-01-16 1998-01-16 Charge intake for internal combustion engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1998101394 DE19801394C1 (en) 1998-01-16 1998-01-16 Charge intake for internal combustion engine

Publications (1)

Publication Number Publication Date
DE19801394C1 true DE19801394C1 (en) 1999-07-15

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ID=7854758

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1998101394 Expired - Fee Related DE19801394C1 (en) 1998-01-16 1998-01-16 Charge intake for internal combustion engine

Country Status (1)

Country Link
DE (1) DE19801394C1 (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4008610A1 (en) * 1990-03-17 1991-09-19 Daimler Benz Ag IC engine with three inlet valves per cylinder - has throttle valves to vary flow through two inlet valves

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4008610A1 (en) * 1990-03-17 1991-09-19 Daimler Benz Ag IC engine with three inlet valves per cylinder - has throttle valves to vary flow through two inlet valves

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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: DAIMLERCHRYSLER AG, 70327 STUTTGART, DE

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

Owner name: DAIMLER AG, 70327 STUTTGART, DE

R119 Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee

Effective date: 20130801