EP0508188B1 - Suction system for an internal combustion engine with compression ignition - Google Patents

Suction system for an internal combustion engine with compression ignition Download PDF

Info

Publication number
EP0508188B1
EP0508188B1 EP92104928A EP92104928A EP0508188B1 EP 0508188 B1 EP0508188 B1 EP 0508188B1 EP 92104928 A EP92104928 A EP 92104928A EP 92104928 A EP92104928 A EP 92104928A EP 0508188 B1 EP0508188 B1 EP 0508188B1
Authority
EP
European Patent Office
Prior art keywords
intake
adapter plate
intake system
internal combustion
combustion engine
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 - Lifetime
Application number
EP92104928A
Other languages
German (de)
French (fr)
Other versions
EP0508188A2 (en
EP0508188A3 (en
Inventor
Jürgen Dipl.-Ing. Wahnschaffe
Lothar Bauer
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.)
Kloeckner Humboldt Deutz AG
Original Assignee
Kloeckner Humboldt Deutz 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 Kloeckner Humboldt Deutz AG filed Critical Kloeckner Humboldt Deutz AG
Publication of EP0508188A2 publication Critical patent/EP0508188A2/en
Publication of EP0508188A3 publication Critical patent/EP0508188A3/en
Application granted granted Critical
Publication of EP0508188B1 publication Critical patent/EP0508188B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • F02M35/1034—Manufacturing and assembling intake systems
    • F02M35/10347—Moulding, casting or the like
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F7/00—Casings, e.g. crankcases or frames
    • F02F7/006—Camshaft or pushrod housings
    • 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
    • F02M35/10078—Connections of intake systems to the engine
    • F02M35/10085—Connections of intake systems to the engine having a connecting piece, e.g. a flange, between the engine and the air intake being foreseen with a throttle valve, fuel injector, mixture ducts or the like
    • 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
    • F02M55/00—Fuel-injection apparatus characterised by their fuel conduits or their venting means; Arrangements of conduits between fuel tank and pump F02M37/00
    • F02M55/004—Joints; Sealings
    • F02M55/005—Joints; Sealings for high pressure conduits, e.g. connected to pump outlet or to injector inlet
    • 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
    • F02M55/00—Fuel-injection apparatus characterised by their fuel conduits or their venting means; Arrangements of conduits between fuel tank and pump F02M37/00
    • F02M55/02—Conduits between injection pumps and injectors, e.g. conduits between pump and common-rail or conduits between common-rail and injectors
    • 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
    • F02B3/00—Engines characterised by air compression and subsequent fuel addition
    • F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition

Definitions

  • the invention relates to an intake system consisting of an intake manifold and an air collector for a self-igniting internal combustion engine with a Kurhel housing, in which a crankshaft is rotatably mounted, to which a piston is fastened by means of at least one connecting rod, which piston can be moved in a cylinder, and the Cylinder is covered by a cylinder head in which an injector is attached to each cylinder, which is connected to an injection pump via an injection line, and inlet channels and outlet channels for gas exchange valves are arranged in the cylinder head, each inlet channel interacting with an intake port.
  • Such an intake system is known from DE-A 38 04 063.
  • This suction system has advantages over the prior art, which consist in particular in the fact that this air suction pipe can be produced as a die-cast part, which enables material-saving mass production.
  • a disadvantage of the suction system is that several casting cores have to be put together to form the casting mold. This requires manufacturing and labor.
  • Another intake system is known from DE-A 31 19 190.
  • This intake system has a screw-on strip which is separate from the air collector, a first part of the respective intake manifold being arranged in the screw-on strip and a further part being arranged in the air collector.
  • the screw-on strip is essentially provided in order to isolate the air collector made of plastic from the high operating temperatures of the cylinder head.
  • the invention has for its object to reduce the manufacturing and labor for producing an intake system and further reduce the overall assembly effort on the internal combustion engine.
  • the intake manifold is integrated exclusively in an adapter plate, which is designed as a separate component from the air collector designed as a cover open on one side, and in that the adapter plate has at least one device for fixing the position of one injection line each.
  • the execution of the suction system in separate components simplifies the manufacture or manufacture of the parts by the simpler molds, so that the basic disadvantage of an additional component is fully compensated for.
  • different temperature requirements can be taken into account by choosing different materials for the two components.
  • the adapter plate has at least one device for fixing the position of one injection line each.
  • a corresponding design of the mold of the adapter plate fixes the position without additional costs.
  • the position fixation can be used both in the case of an exposed injection line and also in the case of a partially exposed injection line which is partly covered by housing parts such as the cylinder head cover, the position fixation advantageously also representing the required housing implementation in the second application.
  • the device is designed as a connecting element for a split injection line. This further simplifies the assembly and disassembly work, since the injection line parts are inevitably assembled correctly and without tension, particularly during assembly.
  • the connecting element is arranged on the adapter plate so that it cannot rotate.
  • slots are incorporated into the adapter plate, into which the connecting elements can be inserted. This represents an inexpensive training, since the manufacturing effort is very low.
  • the openings can be sealed tightly by the housing parts.
  • a channel is let into the adapter plate and is arranged along the cylinder head in the area of the intake manifold.
  • This channel is easy to manufacture due to the material accumulation in this area and can be used for a wide variety of functions. So it is conceivable to ensure a liquid for cooling or heating the intake manifold and consequently the incoming combustion air through the channel. On the other hand, it may be necessary to conduct a liquid or generally a medium from one internal combustion engine end to the other internal combustion engines. According to the invention, it is provided to manufacture the channel with a preferably circular cross-section or as a freely cast channel, the open side being closed by the cylinder head wall.
  • the channel preferably has outlets opening into the intake manifold and is connected on the inlet side to the crankcase ventilation system.
  • effective crankcase ventilation with simultaneous lubrication of the intake valves is guaranteed with simple means.
  • This application will be used in particular in naturally aspirated engines, but it is also conceivable to use it in supercharged engines if the pressure in the duct is higher than that of the support system.
  • Intake channels 1 of a cylinder head 2 open into a longitudinal side wall of the cylinder head 2.
  • An intake system for the internal combustion engine which is in particular a self-igniting internal combustion engine, is arranged on this side wall.
  • the intake system consists of an adapter plate 3 and an air collector 4.
  • the air collector 4 is essentially designed as a trough-shaped cover which extends along the cylinder head 2 and is supported on the adapter plate 3.
  • a circumferential seal 5 is embedded, vulcanized, glued or knotted. The seal assumes both the sealing function of the adapter plate 3 to the cylinder head 2 and that of the air collector 4 to the adapter plate 3.
  • the adapter plate 3 is fastened to the cylinder head by means of screws 6a and 6b (FIG. 2).
  • the air collector 4 is fastened to the adapter plate 3 by means of fastening screws 7a, 7b.
  • a sufficient number of screws 6a, 6b as well as fastening screws 7a, 7b are distributed along a multi-cylinder head 2.
  • the screw heads of the fastening screws 7a, 7b are suitably sealed, for example by a seal, from the air collector 4, so that no external air can enter or escape from the air collector 4 at these screw passages.
  • the adapter plate 3 also has partial intake sections 8a, 8b which connect to the inlet ducts 1 and ensure that the combustion air flows into the inlet ducts 1 without loss.
  • a channel 9 is machined, for example cast in, into the intake manifold section 8b and is connected on the inlet side to the crankcase ventilation system of the internal combustion engine.
  • the channel 9 is designed as a cast channel (FIG. 5), the free side being covered by the cylinder head side wall.
  • the channel 9 in the area of the inlet channels 1 has outlets 10 which for example, are drilled. If the channels are completely drilled through, they are closed on the side facing away from the inlet channels 1 by sealing plugs 11.
  • the adapter plate 3 is provided with slots 13 (FIG. 4) on the cylinder head cover side 12.
  • Connecting elements 14 (FIG. 1) can be plugged into the slots 13 so that they cannot rotate.
  • the connecting elements 14 form a passage for an injection line 15a, 15b from the valve space 16 covered by the cylinder head cover 12, in which the injection nozzle is arranged, to the injection pump arranged outside the internal combustion engine.
  • the injection line 15b is fastened to the connecting element 14 by means of a union nut 17.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)
  • Combustion Methods Of Internal-Combustion Engines (AREA)

Abstract

2.1 A known intake system for an internal combustion engine with compression ignition has an air intake pipe which is connected by way of intake connections to the inlet ports of the cylinder head of the internal combustion engine. The intake system can also be manufactured as a pressure die-casting, the mould having to be assembled from a plurality of mould cores. 2.2 According to the invention the intake system is assembled from an air manifold 4 and an adaptor plate 3 which are inexpensive and easy to manufacture. In addition, the adaptor plate 3 is provided with slots 13 for fixing the position of connecting elements 14 of the injection line 15a, 15b. This simplifies the overall assembly. <IMAGE>

Description

Die Erfindung betrifft ein aus Ansaugstutzen und einem Luftsammler bestehendes Ansaugsystem für eine selbstzündende Brennkraftmaschine mit einem Kurhelgehäuse, in dem eine Kurbelwelle drehbar gelagert ist, an der mittels zumindest eines Pleuels je ein Kolben befestigt ist, der in je einem Zylinder bewegbar ist, und wobei der Zylinder von einem Zylinderkopf abgedeckt ist, in dem je Zylinder eine Einspritzdüse befestigt ist, die über eine Einspritzleitung mit einer Einspritzpumpe verbunden ist, sowie Einlaßkanäle und Auslaßkanäle zu Gaswechselventilen in dem Zylinderkopf angeordnet sind, wobei jeder Einlaßkanal mit einem Ansaugstutzen zusammenwirkt.The invention relates to an intake system consisting of an intake manifold and an air collector for a self-igniting internal combustion engine with a Kurhel housing, in which a crankshaft is rotatably mounted, to which a piston is fastened by means of at least one connecting rod, which piston can be moved in a cylinder, and the Cylinder is covered by a cylinder head in which an injector is attached to each cylinder, which is connected to an injection pump via an injection line, and inlet channels and outlet channels for gas exchange valves are arranged in the cylinder head, each inlet channel interacting with an intake port.

Ein derartiges Ansaugsystem ist aus der DE-A 38 04 063 bekannt. Dieses Ansaugsystem weist gegenüber dem Stand der Technik Vorteile auf, die insbesondere darin bestehen, daß dieses Luftansaugrohr als Druckgußteil hergestellt werden kann, wodurch eine materialsparende Massenfertigung möglich ist. Nachteilig an dem Ansaugsystem ist, daß mehrere Gußkerne zur Gußform zusammengesetzt werden müssen. Dies erfordert Fertigungs- und Arbeitsaufwand.Such an intake system is known from DE-A 38 04 063. This suction system has advantages over the prior art, which consist in particular in the fact that this air suction pipe can be produced as a die-cast part, which enables material-saving mass production. A disadvantage of the suction system is that several casting cores have to be put together to form the casting mold. This requires manufacturing and labor.

Ein weiteres Ansaugsystem ist aus der DE-A 31 19 190 bekannt. Dieses Ansaugsystem weist eine von dem Luftsammler getrennte Anschraubleiste auf, wobei ein erster Teil der jeweiligen Ansaugstutzen in der Anschraubleiste und ein weiterer Teil in dem Luftsammler angeordnet ist. Die Anschraubleiste ist im wesentlichen vorgesehen, um den aus Kunststoff gefertigten Luftsammler vor den hohen Betriebstemperaturen des Zylinderkopfes zu isolieren.Another intake system is known from DE-A 31 19 190. This intake system has a screw-on strip which is separate from the air collector, a first part of the respective intake manifold being arranged in the screw-on strip and a further part being arranged in the air collector. The screw-on strip is essentially provided in order to isolate the air collector made of plastic from the high operating temperatures of the cylinder head.

Der Erfindung liegt die Aufgabe zugrunde, den Fertigungs- und Arbeitsaufwand zur Herstellung eines Ansaugsystems zu verringern und weiterhin den Montageaufwand insgesamt an der Brennkraftmaschine zu verringern.The invention has for its object to reduce the manufacturing and labor for producing an intake system and further reduce the overall assembly effort on the internal combustion engine.

Diese Aufgabe wird dadurch gelöst, daß der Ansaugstutzen ausschließlich in eine Adapterplatte integriert ist, die als von dem als einseitig offener Deckel ausgebilderten Luftsammler separates Bauteil ausgeführt ist, und daß die Adapterplatte zumindest eine Vorrichtung zur Lagefixierung je einer Einspritzleitung aufweist. Durch die Ausführung des Ansaugsystem in separaten Bauteilen wird die Fertigung beziehungsweise Herstellung der Teile durch die einfacheren Gußformen so weit vereinfacht, so daß der grundsätzliche Nachteil eines zusätzlichen Bauteils voll ausgeglichen wird. Zudem können durch die Wahl von gegebenenfalls unterschiedlichen Werkstoffen für die beiden Bauteile unterschiedliche Temperaturanforderungen berücksichtigt werden. Ein weiterer wesentlicher Vorteil ist darin begründet, daß die Adapterplatte zumindest eine Vorrichtung zur Lagefixierung je einer Einspritzleitung aufweist. Durch eine entsprechende Ausgestaltung der Gußform der Adapterplatte wird ohne Mehrkosten die Lagefixierung erreicht. Die Lagefixierung ist sowohl bei einer freiliegenden Einspritzleitung anwendbar, als auch bei einer teilweise freiliegenden und teilweise durch Gehäuseteile wie Zylinderkopfhaube verdeckten Einspritzleitung erforderlich, wobei im zweiten Anwendungsfall die Lagefixierung vorteilhaft gleichzeitig die erforderliche Gehäusedurchführung darstellt.This object is achieved in that the intake manifold is integrated exclusively in an adapter plate, which is designed as a separate component from the air collector designed as a cover open on one side, and in that the adapter plate has at least one device for fixing the position of one injection line each. The execution of the suction system in separate components simplifies the manufacture or manufacture of the parts by the simpler molds, so that the basic disadvantage of an additional component is fully compensated for. In addition, different temperature requirements can be taken into account by choosing different materials for the two components. Another important advantage is that the adapter plate has at least one device for fixing the position of one injection line each. A corresponding design of the mold of the adapter plate fixes the position without additional costs. The position fixation can be used both in the case of an exposed injection line and also in the case of a partially exposed injection line which is partly covered by housing parts such as the cylinder head cover, the position fixation advantageously also representing the required housing implementation in the second application.

In Weiterbildung der Erfindung ist die Vorrichtung als Verbindungselement für eine geteilte Einspritzleitung ausgebildet. Damit wird der Montage- bzw. Demontageaufwand weiter vereinfacht, da die Einspritzleitungsteile insbesondere bei der Montage zwangsläufig richtig und ohne Verspannungen montiert werden.In a further development of the invention, the device is designed as a connecting element for a split injection line. This further simplifies the assembly and disassembly work, since the injection line parts are inevitably assembled correctly and without tension, particularly during assembly.

In Weiterbildung der Erfindung ist das Verbindungselement verdrehsicher an der Adapterplatte angeordnet. Dadurch wird zusätzlich zu der montageerleichternden Lagefixierung das Gegenhalten von Schraubschlüsseln bei Verschraubungsvorgängen überflüssig.In a further development of the invention, the connecting element is arranged on the adapter plate so that it cannot rotate. As a result, in addition to fixing the position, which makes installation easier, there is no need to hold wrenches in place during screwing operations.

Dazu sind in vorteilhafter Weiterbildung in die Adapterplatte Schlitze eingearbeitet, in die die Verbindungselemente einsteckbar sind. Dieses stellt eine günstige Ausbildung dar, da der Herstellungsaufwand sehr gering ist. Gleichzeitig kann beispielsweise bei einer U-förmigen Ausbildung der Schlitze und entsprechend angepaßten U-förmigen Verbindungselement ein dichtes Verschließen der Durchbrüche durch die Gehäuseteile erreicht werden.To this end, in an advantageous further development, slots are incorporated into the adapter plate, into which the connecting elements can be inserted. This represents an inexpensive training, since the manufacturing effort is very low. At the same time, for example, with a U-shaped configuration of the slots and correspondingly adapted U-shaped connecting element, the openings can be sealed tightly by the housing parts.

In weiterer Ausgestaltung der Erfindung ist in die Adapterplatte ein Kanal eingelassen, der entlang des Zylinderkopfes im Bereich der Ansaugstutzen angeordnet ist. Dieser Kanal ist durch die in diesem Bereich ohnehin vorhandene Materialanhäufung problemlos zu fertigen und kann für die verschiedensten Funktionen herangezogen werden. So ist es denkbar, durch den Kanal eine Flüssigkeit zum Kühlen oder Erwärmen der Ansaugstutzen und folglich somit der einströmenden Verbrennungsluft zu gewährleisten. Zum anderen kann es erforderlich sein, von einem Brennkraftmaschinenende zu den anderen Brennkraftmaschinen eine Flüssigkeit oder allgemein ein Medium zu leiten. Erfindungsgemäß ist vorgesehen, den Kanal mit vorzugsweise kreisförmigen Querschnitt zu fertigen oder als freigegossenen Kanal, wobei die offene Seite von der Zylinderkopfwand verschlossen wird.In a further embodiment of the invention, a channel is let into the adapter plate and is arranged along the cylinder head in the area of the intake manifold. This channel is easy to manufacture due to the material accumulation in this area and can be used for a wide variety of functions. So it is conceivable to ensure a liquid for cooling or heating the intake manifold and consequently the incoming combustion air through the channel. On the other hand, it may be necessary to conduct a liquid or generally a medium from one internal combustion engine end to the other internal combustion engines. According to the invention, it is provided to manufacture the channel with a preferably circular cross-section or as a freely cast channel, the open side being closed by the cylinder head wall.

Vorzugsweise weist der Kanal in die Ansaugstutzen mündende Austritte auf und ist eintrittsseitig mit dem Kurbelgehäuseentlüftungssystem verbunden. In dieser Ausgestaltung wird mit einfachen Mitteln eine wirkungsvolle Kurbelgehäuseentlüftung bei gleichzeitiger Schmierung der Einlaßventile (insbesondere der Ventilschäfte und der Sitzringe) gewährleistet. Dabei wird diese Anwendung insbesondere bei Saugmotoren zur Anwendung kommen, es ist aber auch denkbar, sie bei aufgeladenen Motoren anzuwenden, wenn der in dem Kanal herrschende Druck höher als der des Auflagdsystems ist.The channel preferably has outlets opening into the intake manifold and is connected on the inlet side to the crankcase ventilation system. In this configuration effective crankcase ventilation with simultaneous lubrication of the intake valves (in particular the valve stems and the seat rings) is guaranteed with simple means. This application will be used in particular in naturally aspirated engines, but it is also conceivable to use it in supercharged engines if the pressure in the duct is higher than that of the support system.

Weitere vorteilhafte Weiterbildungen der Erfindung sind der Zeichnungsbeschreibung zu entnehmen, in der ein in den Figuren dargestelltes Ausführungsbeispiel beschrieben ist.Further advantageous developments of the invention can be found in the description of the drawing, in which an exemplary embodiment shown in the figures is described.

Es zeigen:

Fig.1:
ein Ansaugsystem, bestehend aus Adapterplatte und Luftsammler mit an der Adapterplatte verdrehsicher festgelegtem Verbindungselement,
Fig.2:
die Befestigung der Adapterplatte an dem Zylinderkopf,
Fig.3:
die Befestigung des Luftsammlers an der Adapterplatte,
Fig.4:
einen Schnitt I-I gemäß Fig.1, die die Festlegung des Verbindungselementes darstellt und
Fig.5:
eine Adapterplatte mit freigegossenem Kanal.
Show it:
Fig.1:
an intake system consisting of an adapter plate and an air collector with a connecting element secured against rotation on the adapter plate,
Fig. 2:
the attachment of the adapter plate to the cylinder head,
Fig. 3:
the attachment of the air collector to the adapter plate,
Fig. 4:
a section II of Figure 1, which represents the determination of the connecting element and
Fig. 5:
an adapter plate with a cast channel.

Einlaßkanäle 1 eines Zylinderkopfes 2 (Ein- oder Mehrzylinderkopf) münden in eine Längsseitenwand des Zylinderkopfes 2. An dieser Seitenwand ist ein Ansaugsystem für die Brennkraftmaschine, die insbesondere eine selbstzündende Brennkraftmaschine ist, angeordnet. Das Ansaugsystem besteht aus einer Adapterplatte 3 sowie einem Luftsammler 4. Der Luftsammler 4 ist im wesentlichen als wannenförmiger Deckel ausgebildet, der sich entlang des Zylinderkopfes 2 erstreckt und auf der Adapterplatte 3 abstützt. In die Adapterplatte 3 ist im Bereich der auftreffenden Luftsammlerwände eine umlaufende Dichtung 5 eingelassen, einvulkanisiert, eingeklebt oder eingeknüpft. Die Dichtung übernimmt sowohl die Dichtungsfunktion der Adapterplatte 3 zum Zylinderkopf 2 als auch die des Luftsammlers 4 zu der Adapterplatte 3.Intake channels 1 of a cylinder head 2 (single or multi-cylinder head) open into a longitudinal side wall of the cylinder head 2. An intake system for the internal combustion engine, which is in particular a self-igniting internal combustion engine, is arranged on this side wall. The intake system consists of an adapter plate 3 and an air collector 4. The air collector 4 is essentially designed as a trough-shaped cover which extends along the cylinder head 2 and is supported on the adapter plate 3. In the adapter plate 3 in the area of the impinging air collector walls, a circumferential seal 5 is embedded, vulcanized, glued or knotted. The seal assumes both the sealing function of the adapter plate 3 to the cylinder head 2 and that of the air collector 4 to the adapter plate 3.

Die Adapterplatte 3 ist mittels Schrauben 6a und 6b (Figur 2) an dem Zylinderkopf befestigt. In einem anschließenden Montagevorgang wird der Luftsammler 4 mittels Befestigungsschrauben 7a, 7b an der Adapterplatte 3 befestigt. Dabei sind sowohl eine genügende Anzahl von Schrauben 6a, 6b als auch von Befestigungsschrauben 7a, 7b entlang eines Mehrzylinderkopfes 2 verteilt. Weiterhin sind die Schraubenköpfe der Befestigungsschrauben 7a, 7b in geeigneter Weise beispielsweise durch eine Dichtung gegenüber dem Luftsammler 4 abgedichtet, so daß an diesen Schraubendurchlässen keine Fremdluft in den Luftsammler 4 eindringen beziehungsweise aus diesen entweichen kann.The adapter plate 3 is fastened to the cylinder head by means of screws 6a and 6b (FIG. 2). In a subsequent assembly process, the air collector 4 is fastened to the adapter plate 3 by means of fastening screws 7a, 7b. A sufficient number of screws 6a, 6b as well as fastening screws 7a, 7b are distributed along a multi-cylinder head 2. Furthermore, the screw heads of the fastening screws 7a, 7b are suitably sealed, for example by a seal, from the air collector 4, so that no external air can enter or escape from the air collector 4 at these screw passages.

Die Adapterplatte 3 weist weiterhin Ansaugstutzenteilbereiche 8a, 8b auf, die sich an die Einlaßkanäle 1 anschließen und für ein verlustfreies Einströmen der Verbrennungsluft in die Einlaßkanäle 1 sorgen. In den Ansaugstutzenteilbereich 8b ist ein Kanal 9 eingearbeitet, beispielsweise eingegossen, der eintrittsseitig mit dem Kurbelgehäuseentlüftungssystem der Brennkraftmaschine verbunden ist. Alternativ ist der Kanal 9 als freigegossener Kanal (Fig.5) ausgebildet, wobei die freie Seite von der Zylinderkopfseitenwand abgedeckt ist. Weiterhin weist der Kanal 9 im Bereich der Einlaßkänle 1 Austritte 10 auf, die beispielsweise gebohrt sind. Werden die Kanäle vollkommen durchgebohrt, werden sie auf der den Einlaßkanälen 1 abgewandten Seite durch Verschlußstopfen 11 verschlossen.The adapter plate 3 also has partial intake sections 8a, 8b which connect to the inlet ducts 1 and ensure that the combustion air flows into the inlet ducts 1 without loss. A channel 9 is machined, for example cast in, into the intake manifold section 8b and is connected on the inlet side to the crankcase ventilation system of the internal combustion engine. Alternatively, the channel 9 is designed as a cast channel (FIG. 5), the free side being covered by the cylinder head side wall. Furthermore, the channel 9 in the area of the inlet channels 1 has outlets 10 which for example, are drilled. If the channels are completely drilled through, they are closed on the side facing away from the inlet channels 1 by sealing plugs 11.

Die Adapterplatte 3 ist ist zylinderkopfhaubenseitig 12 mit Schlitzen 13 (Figur 4) versehen. In die Schlitze 13 sind Verbindungselemente 14 (Figur 1) verdrehsicher einsteckbar. Die Verbindungselemente 14 bilden einen Durchtritt für eine Einspritzleitung 15a, 15b von dem durch die Zylinderkopfhaube 12 abgedeckten Ventilraum 16, in dem die Einspritzdüse angeordnet ist, nach der außerhalb der Brennkraftmaschine angeordneten Einspritzpumpe. Die Einspritzleitung 15b wird mittels einer Überwurfmutter 17 an dem Verbindungselement 14 befestigt.The adapter plate 3 is provided with slots 13 (FIG. 4) on the cylinder head cover side 12. Connecting elements 14 (FIG. 1) can be plugged into the slots 13 so that they cannot rotate. The connecting elements 14 form a passage for an injection line 15a, 15b from the valve space 16 covered by the cylinder head cover 12, in which the injection nozzle is arranged, to the injection pump arranged outside the internal combustion engine. The injection line 15b is fastened to the connecting element 14 by means of a union nut 17.

Claims (6)

  1. An intake system comprising an intake support (8a, 8b) and an air collector (4) for a compression-ignition internal combustion engine having a crankcase in which a crankshaft is rotatably mounted and which is secured by respective connecting rods to at least one piston, each piston being movable in a cylinder, the cylinder being covered by a cylinder head in which an injection nozzle is secured for each cylinder and connected by an injection line to an injection pump, and at least one inlet duct and outlet duct to the gas-change valves are provided, the inlet duct co-operating with an intake support, characterised in that the intake support (8a, 8b) is incorporated exclusively in an adapter plate (3) in the form of a component separate from the air collector (4), which is a cover open at one side, and the adapter plate (3) comprises at least one device for securing a respective injection line (15a, 15b) in position.
  2. An intake system according to claim 1, characterised in that the device is a connecting element (14) for a divided injection line (15a, 15b).
  3. An intake system according to claim 2, characterised in that the connecting element (14) is non-rotatably disposed on the adapter plate (3).
  4. An intake system according to claim 2, characterised in that the adapter plate (3) is formed with at least one slot (13) for inserting the connecting element (14).
  5. An intake system according to any one of the preceding claims, characterised in that the adapter plate (3) is formed with a duct disposed along the cylinder head (2) in the neighbourhood of the intake support (8a, 8b).
  6. An intake system according to claim 5, characterised in that the duct (9) has outlets (10) opening into the intake support (8a, 8b) and its inlet is connected to the crankcase ventilating system.
EP92104928A 1991-04-11 1992-03-21 Suction system for an internal combustion engine with compression ignition Expired - Lifetime EP0508188B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4111772A DE4111772A1 (en) 1991-04-11 1991-04-11 INTAKE SYSTEM FOR A SELF-IGNITION COMBUSTION ENGINE
DE4111772 1991-04-11

Publications (3)

Publication Number Publication Date
EP0508188A2 EP0508188A2 (en) 1992-10-14
EP0508188A3 EP0508188A3 (en) 1993-02-03
EP0508188B1 true EP0508188B1 (en) 1994-09-28

Family

ID=6429323

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92104928A Expired - Lifetime EP0508188B1 (en) 1991-04-11 1992-03-21 Suction system for an internal combustion engine with compression ignition

Country Status (3)

Country Link
EP (1) EP0508188B1 (en)
AT (1) ATE112364T1 (en)
DE (2) DE4111772A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101598092B (en) * 2004-07-23 2011-03-30 马格内蒂马莱利控股有限公司 Electromagnetically actuated fuel injector

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3975980B2 (en) 2003-08-11 2007-09-12 日産自動車株式会社 Engine intake system
US7373956B2 (en) * 2004-02-13 2008-05-20 Briggs & Stratton Corporation Passageway having non-linear flow path
JP4065270B2 (en) * 2004-12-06 2008-03-19 本田技研工業株式会社 Throttle body fastening structure
WO2008156387A1 (en) * 2007-06-21 2008-12-24 Volvo Lastvagnar Ab Hydraulic connection of injector to a pressure source
DE102012017087B3 (en) * 2012-08-29 2014-02-13 Audi Ag Sucking device for internal combustion engine, has supporting collar pressing opening edge of aperture of air battery wall portion against cylinder head, and sealed connection formed between battery and head
DE102012217285A1 (en) * 2012-09-25 2014-06-12 Bayerische Motoren Werke Aktiengesellschaft internal combustion engine
EP2935856B1 (en) 2012-12-20 2016-11-02 Volvo Truck Corporation Arrangement for supplying fuel to an engine

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3402703A (en) * 1966-07-08 1968-09-24 Int Harvester Co Fuel connection to cylinder head
NL6909813A (en) * 1968-09-17 1970-03-19
US3823702A (en) * 1971-01-11 1974-07-16 C Roberts Internal combustion engine manifold and fluid flow configuration
DE2635512A1 (en) * 1975-08-08 1977-03-31 Isuzu Motors Ltd V-COMBUSTION ENGINE
DE3119190A1 (en) * 1981-05-14 1982-12-16 Klöckner-Humboldt-Deutz AG, 5000 Köln INTAKE SYSTEM WITH SWINGARM TUBES
JPS611656U (en) * 1984-06-10 1986-01-08 マツダ株式会社 Diesel engine intake system
DE3704567A1 (en) * 1987-02-13 1988-08-25 Kloeckner Humboldt Deutz Ag Return line for leakage gases from the crankcase
DE3622024A1 (en) * 1986-07-01 1988-01-07 Kloeckner Humboldt Deutz Ag Return line for leakage gases from the crankcase
DE3765705D1 (en) * 1986-07-01 1990-11-29 Kloeckner Humboldt Deutz Ag RETURN LINE FOR LEAKAGE GAS FROM THE CRANKCASE.
DE3804063A1 (en) * 1988-02-10 1989-08-24 Kloeckner Humboldt Deutz Ag AIR INTAKE PIPE FOR AN INTERNAL COMBUSTION ENGINE

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101598092B (en) * 2004-07-23 2011-03-30 马格内蒂马莱利控股有限公司 Electromagnetically actuated fuel injector

Also Published As

Publication number Publication date
DE4111772A1 (en) 1992-10-15
EP0508188A2 (en) 1992-10-14
ATE112364T1 (en) 1994-10-15
EP0508188A3 (en) 1993-02-03
DE59200555D1 (en) 1994-11-03

Similar Documents

Publication Publication Date Title
DE10341393B3 (en) Air induction port system for internal combustion engines has exhaust gas return passage made in one piece with casing, and exhaust gas return valve and throttle valve are constructed as cartridge valve for insertion in holes in casing
DE102010019427A1 (en) Intake manifold system for internal combustion engine
DE102007048354A1 (en) Air filter for a motorcycle
DE19614474B4 (en) Air intake duct system for internal combustion engines
WO2001009493A2 (en) Suction pipe unit
EP3332164B1 (en) Device for lowering flow noises
EP0508188B1 (en) Suction system for an internal combustion engine with compression ignition
EP1206633B1 (en) Suction intake device for an internal combustion machine
DE2657890C3 (en) Internal combustion engine with a cylinder block through which cooling water flows
DE8914049U1 (en) Air intake duct system for internal combustion engines
DE19636806A1 (en) Exhaust gas recirculation control valve for internal combustion engine
EP0602398A1 (en) Cylinder head cover
EP0098543B1 (en) Covernor air inlet arrangement for internal-combustion engines, particularly multicylinder fuel injection internal-combustion engines
DE19855734A1 (en) Adjustable suction pipe
EP1241344A2 (en) Air intake conduit system for an internal combustion engine
DE69913256T2 (en) Internal combustion engine
WO2006021243A1 (en) Internal combustion engine with compressor and pressure damper
DE102012002463A1 (en) Internal combustion engine of motor car assembly, has cooling unit that is connected partially within intake manifold and/or suction pipe which is arranged between intake manifold and combustion chamber of cylinder
WO2005017341A1 (en) Intake module for an internal combustion engine
DE19810726A1 (en) Exhaust gas manifold with integral cooling for IC engine
EP0071778B1 (en) Air cooled multi-cylinder internal-combustion engine with overhead camshaft
DE202005013734U1 (en) Venting module for an internal combustion engine
DE10346005B4 (en) Air intake module for an internal combustion engine with impulse charging
DE10062169A1 (en) IC engine with exhaust-gas re-circulation esp. for motor vehicles is without external ducts and without external exhaust re-circulation valve, has intermediate flange for simple connection
DE4120200A1 (en) CYLINDER HEAD FOR AN INTERNAL COMBUSTION ENGINE

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT DE FR GB IT

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT DE FR GB IT

17P Request for examination filed

Effective date: 19930130

17Q First examination report despatched

Effective date: 19930528

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT DE FR GB IT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 19940928

Ref country code: FR

Effective date: 19940928

REF Corresponds to:

Ref document number: 112364

Country of ref document: AT

Date of ref document: 19941015

Kind code of ref document: T

REF Corresponds to:

Ref document number: 59200555

Country of ref document: DE

Date of ref document: 19941103

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19941118

EN Fr: translation not filed
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Effective date: 19950321

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19951201

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19960321

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19960321