DE3929933A1 - Two-valve IC engine intake system - has inlet bend partition axis intersecting those of both valves - Google Patents

Two-valve IC engine intake system - has inlet bend partition axis intersecting those of both valves

Info

Publication number
DE3929933A1
DE3929933A1 DE3929933A DE3929933A DE3929933A1 DE 3929933 A1 DE3929933 A1 DE 3929933A1 DE 3929933 A DE3929933 A DE 3929933A DE 3929933 A DE3929933 A DE 3929933A DE 3929933 A1 DE3929933 A1 DE 3929933A1
Authority
DE
Germany
Prior art keywords
inlet
partition
valves
intake system
valve
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.)
Withdrawn
Application number
DE3929933A
Other languages
German (de)
Inventor
Mario Muerwald
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.)
Daimler Benz 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 DE3929933A priority Critical patent/DE3929933A1/en
Publication of DE3929933A1 publication Critical patent/DE3929933A1/en
Withdrawn legal-status Critical Current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
    • F02M35/104—Intake manifolds
    • F02M35/108—Intake manifolds with primary and secondary intake passages
    • F02M35/1085—Intake manifolds with primary and secondary intake passages the combustion chamber having multiple intake valves
    • 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
    • F02M35/104—Intake manifolds
    • F02M35/108—Intake manifolds with primary and secondary intake passages
    • 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
    • F02M35/104—Intake manifolds
    • F02M35/116—Intake manifolds for engines with cylinders in V-arrangement or arranged oppositely relative to the main shaft
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B75/00—Other engines
    • F02B75/16—Engines characterised by number of cylinders, e.g. single-cylinder engines
    • F02B75/18—Multi-cylinder engines
    • F02B75/22—Multi-cylinder engines with cylinders in V, fan, or star arrangement
    • 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
    • F02M35/10111—Substantially V-, C- or U-shaped ducts in direction of the flow path

Landscapes

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

Abstract

The engine intake system comprises two inlet valves per cylinder. An inlet bend contains a partition forming two inlet passages, there being a hole in the latter near the valves through which the air or mixture flows when one passage is shut off. When extended, the axis of the partition (8) intersects those (4a) of both inlet valves (4). The partition can be at right angles to these axes. ADVANTAGE - Improved torque in lower part of speed range.

Description

Die Erfindung betrifft ein Ansaugsystem für eine Brenn­ kraftmaschine mit zwei Einlaßventilen je Einzelzylinder, mit einem zwei Einlaßkanäle aufweisenden Einlaßkrümmer, in dem eine Zwischenwand als Trennwand zwischen den Einlaß­ kanälen vorgesehen ist, gemäß den im Oberbegriff des Pa­ tentanspruchs 1 angegebenen Merkmalen.The invention relates to an intake system for a burner engine with two intake valves per single cylinder, with an intake manifold having two inlet channels, in the one partition as a partition between the inlet channels is provided, according to the in the preamble of Pa Tent claims 1 specified features.

Aus der Automobil-Revue Nr. 45 vom 31.10.85, Seite 35 ist ein derartiges Ansaugsystem bekannt, bei dem einer der zwei Einlaßkanäle des Einlaßkrümmers durch ein Steuerven­ til bei niedrigen Drehzahlen abgeschaltet werden kann. Der Einlaßkrümmer enthält eine zwischen beiden Einlaßkanälen verlaufende Trennwand, die im nahen Bereich der Einlaß­ ventile eine Fensterung bzw. Verbindungsöffnung aufweist, um einen Teilstrom in den abgeschalteten Einlaßkanal stromab der Fensterung zu dem zugeordneten Einlaßventil zu leiten.From automobile revue no.45 of 10/31/85, page 35 such a suction system is known in which one of the two intake ducts of the intake manifold through a control vein til can be switched off at low speeds. The Intake manifold contains one between the two inlet channels Trending partition that is in the vicinity of the inlet valves has a window or connection opening, by a partial flow into the switched-off inlet duct downstream of the fenestration to the associated inlet valve conduct.

Der Erfindung liegt die Aufgabe zugrunde, auf einem zweikanaligen Einlaßkrümmer einfache konstruktive Maß­ nahmen vorzusehen, die eine weitere Verbesserung des Drehmoments in unteren Drehzahlbereichen ermöglichen.The invention has for its object on one two-channel intake manifold simple constructive measure took measures to further improve the Enable torque in the lower speed ranges.

Zur Lösung dieser Aufgabe dienen die im Kennzeichen des Patentanspruchs 1 angegebenen Merkmale.To solve this problem, the in the characteristics of Features specified claim 1.

Durch die besondere Anordnung der Trennwand im Einlaß­ krümmer bzw. durch die besondere Zuordnung der Trennwand zu beiden Einlaßventilen ergibt sich bei abgeschaltetem Einlaßkanal eine gleichmäßige Massenstromverteilung auf beide Einlaßventile und damit eine gleichmäßige Gemisch­ verteilung im Zylinder.Due to the special arrangement of the partition in the inlet bend or through the special assignment of the partition to both inlet valves results when the Inlet channel on a uniform mass flow distribution both intake valves and thus an even mixture distribution in the cylinder.

In dem Unteranspruch ist noch eine förderliche Weiterbil­ dung angegeben.In the subclaim is still a beneficial further education specified.

Der Gegenstand der Erfindung ist anhand eines in der Zeichnung dargestellten Ausführungsbeispieles näher be­ schrieben.The object of the invention is based on a Drawing shown embodiment be closer wrote.

Es zeigen:Show it:

Fig. 1 eine Trennwand im Einlaßkrümmer in ge­ schnittener Darstellung und Fig. 1 is a partition in the intake manifold in ge sectional view and

Fig. 2 die Trennwand nach der Linie II-II in Fig. 1. Fig. 2, the dividing wall according to the line II-II in FIG. 1.

In Fig. 1 ist eine Brennkraftmaschine 1 mit V-förmig an­ geordneten Zylinderreihen 2 gezeigt, von denen jeder Ein­ zelzylinder 3 ein oder zwei Auslaßventile und zwei Ein­ laßventile 4 aufweist.In Fig. 1, an internal combustion engine 1 is shown with a V-shape on ordered rows of cylinders 2 , each of which a single cylinder 3 has one or two exhaust valves and two one lassventile 4 .

Jedem Einzelzylinder 3 ist ein Einlaßkrümmer 5 mit zwei Einlaßkanälen 6, 7 zugeordnet. In dem Einlaßkrümmer 5 ist eine Zwischenwand vorgesehen, die als Trennwand 8 für beide Einlaßkanäle 6, 7 dient.Each individual cylinder 3 is assigned an intake manifold 5 with two intake channels 6 , 7 . In the intake manifold 5 , an intermediate wall is provided, which serves as a partition 8 for both inlet channels 6 , 7 .

In der Trennwand 8 ist im nahen Bereich der Einlaßventile 4 eine Verbindungsöffnung 9 bzw. Fensterung vorgesehen, durch die der oder die Einspritzstrahlen eines Einspritzventiles (nicht dargestellt), das in der Aufnah­ mebohrung 10 angeordnet ist, zu den Einlaßventilen 4 ge­ langen.In the partition 8 in the vicinity of the inlet valves 4, a connection opening 9 or windowing is provided, through which the or the injection jets of an injection valve (not shown), which is arranged in the receiving bore 10 , to the inlet valves 4 ge long.

Die Trennwand 8 ist im Einlaßkrümmer 5 derart angeordnet, daß ihre gedachte Verlängerung, die Ventilachsen 4 a beider Einlaßventile 4 schneidet, wobei die Trennwand 8 zumindest annähernd senkrecht zur Ventilachse 4 a liegt.The partition 8 is arranged in the intake manifold 5 such that its imaginary extension, the valve axes 4 a of both inlet valves 4 intersects, the partition 8 being at least approximately perpendicular to the valve axis 4 a .

Claims (2)

1. Ansaugsystem für eine Brennkraftmaschine mit zwei Ein­ laßventilen je Einzelzylinder, mit einem zwei Einlaßkanäle aufweisenden Einlaßkrümmer, in dem eine Zwischenwand als Trennwand zwischen den Einlaßkanälen vorgesehen ist, ferner mit einer in der Trennwand im nahen Bereich der Einlaßventile angeordneten Verbindungsöffnung, durch die bei Abschaltung eines Einlaßkanals ein Teil des Kraft­ stoff-Luft-Gemisches bzw. der Luft strömt, dadurch gekennzeichnet, daß eine gedachte Verlängerung der Trennwand (8) die Ven­ tilachsen (4 a) beider Einlaßventile (4) schneidet.1. Intake system for an internal combustion engine with two inlet valves per single cylinder, with an inlet manifold having two inlet channels, in which an intermediate wall is provided as a partition between the inlet channels, and also with a connection opening arranged in the partition near the inlet valves, through which when switched off an inlet duct, part of the fuel-air mixture or the air flows, characterized in that an imaginary extension of the partition ( 8 ) cuts the Ven tilachsen ( 4 a ) of both inlet valves ( 4 ). 2. Ansaugsystem nach Anspruch 1, dadurch gekennzeichnet, daß die Trennwand (8) zumindest annähernd senkrecht zur Ventilachse (4 a) angeordnet ist.2. Intake system according to claim 1, characterized in that the partition ( 8 ) is arranged at least approximately perpendicular to the valve axis ( 4 a ).
DE3929933A 1989-09-08 1989-09-08 Two-valve IC engine intake system - has inlet bend partition axis intersecting those of both valves Withdrawn DE3929933A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE3929933A DE3929933A1 (en) 1989-09-08 1989-09-08 Two-valve IC engine intake system - has inlet bend partition axis intersecting those of both valves

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3929933A DE3929933A1 (en) 1989-09-08 1989-09-08 Two-valve IC engine intake system - has inlet bend partition axis intersecting those of both valves

Publications (1)

Publication Number Publication Date
DE3929933A1 true DE3929933A1 (en) 1990-09-27

Family

ID=6388947

Family Applications (1)

Application Number Title Priority Date Filing Date
DE3929933A Withdrawn DE3929933A1 (en) 1989-09-08 1989-09-08 Two-valve IC engine intake system - has inlet bend partition axis intersecting those of both valves

Country Status (1)

Country Link
DE (1) DE3929933A1 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2815701A1 (en) * 1978-04-12 1979-10-25 Daimler Benz Ag IC engine with air or fuel mixt. heated by exhaust gas - has separate supply channels for upper and lower load regions
JPS62101822A (en) * 1985-10-29 1987-05-12 Honda Motor Co Ltd Intake device for intake two-valve type engine
DE3923924A1 (en) * 1988-07-19 1990-01-25 Fuji Heavy Ind Ltd CONTROL DEVICE FOR THE AIR INLET OF A VEHICLE ENGINE

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2815701A1 (en) * 1978-04-12 1979-10-25 Daimler Benz Ag IC engine with air or fuel mixt. heated by exhaust gas - has separate supply channels for upper and lower load regions
JPS62101822A (en) * 1985-10-29 1987-05-12 Honda Motor Co Ltd Intake device for intake two-valve type engine
DE3923924A1 (en) * 1988-07-19 1990-01-25 Fuji Heavy Ind Ltd CONTROL DEVICE FOR THE AIR INLET OF A VEHICLE ENGINE

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Legal Events

Date Code Title Description
OAV Applicant agreed to the publication of the unexamined application as to paragraph 31 lit. 2 z1
OP8 Request for examination as to paragraph 44 patent law
8130 Withdrawal