EP2753803A1 - Control housing cover for an internal combustion engine - Google Patents

Control housing cover for an internal combustion engine

Info

Publication number
EP2753803A1
EP2753803A1 EP12748476.4A EP12748476A EP2753803A1 EP 2753803 A1 EP2753803 A1 EP 2753803A1 EP 12748476 A EP12748476 A EP 12748476A EP 2753803 A1 EP2753803 A1 EP 2753803A1
Authority
EP
European Patent Office
Prior art keywords
housing cover
control housing
oil separator
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.)
Withdrawn
Application number
EP12748476.4A
Other languages
German (de)
French (fr)
Inventor
Thomas Jessberger
Michael Daiber
Holger BEYERLIN
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.)
Mann and Hummel GmbH
Original Assignee
Mann and Hummel GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mann and Hummel GmbH filed Critical Mann and Hummel GmbH
Publication of EP2753803A1 publication Critical patent/EP2753803A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01MLUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M13/00Crankcase ventilating or breathing
    • F01M13/04Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil
    • F01M13/0405Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil arranged in covering members apertures, e.g. caps
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02FCYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F7/00Casings, e.g. crankcases or frames
    • F02F7/0065Shape of casings for other machine parts and purposes, e.g. utilisation purposes, safety
    • F02F7/0073Adaptations for fitting the engine, e.g. front-plates or bell-housings
    • F02F2007/0075Front covers
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02FCYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F7/00Casings, e.g. crankcases or frames
    • F02F7/0002Cylinder arrangements
    • F02F7/0007Crankcases of engines with cylinders in line

Definitions

  • the invention relates to a control housing cover for an internal combustion engine according to the preamble of claim 1.
  • a control housing cover for an internal combustion engine which is arranged laterally on the engine block and covers the timing chain of the internal combustion engine.
  • a crankcase ventilation device is integrated, are deposited on the oil particles from the blow-by gases of the crankcase of the internal combustion engine, wherein the gases are supplied to the intake tract of the internal combustion engine after the oil separation.
  • the crankcase ventilation device comprises an oil separator, which can be inserted into a receptacle in the control housing cover, which is located in the side region of the control housing cover. From Olabscheider branches a Olablauftechnisch for separated oil down and a return line for the cleaned blow-by gases upwards.
  • Timing case cover All components of the crankcase ventilation device, so the oil separator and the Olablauf ein and the return line are arranged in the side region of the timing case cover, it being important to ensure that the leadership of the timing chain is not affected by the components of the crankcase ventilation device.
  • the timing case cover must have a relatively large width to accommodate the crankcase ventilation device without affecting the timing chain.
  • the invention has for its object to provide a simple constructive measures a compactly constructed control housing cover for an internal combustion engine with integrated oil separator of a crankcase ventilation device.
  • the control housing cover is flanged laterally to the engine block of an internal combustion engine and has an engine mount plate which serves to hold the internal combustion engine; The connection of the engine in the engine compartment of a motor vehicle takes place via the engine mounting plate.
  • the control housing cover also receives an oil separator of a crankcase ventilation device to separate oil particles from the blow-by gases from the crankcase of the internal combustion engine, wherein the purified gases are then supplied to the intake tract of the internal combustion engine.
  • the oil separator is integrated in the control housing cover, on which (the separator separates the oil droplets from the blow-by gases.)
  • the oil separator is arranged adjacent to the motor bearing plate.
  • the timing case cover can be made compact in this embodiment.
  • the engine mount plate which is integrally formed with the timing cover or is fixedly connected thereto, is located at a position in the timing cover, in which the guidance and movement of the timing chain, which is covered by the timing cover is not affected. Accordingly, the positioning of the oil separator adjacent to the engine mounting plate does not lead to an impairment of the timing chain. Overall, the integration of the oil separator takes place without changing the dimensions of the control housing cover, by using existing space in the immediate vicinity of the motor bearing plate for receiving the oil separator.
  • the engine mount plate and the oil separator - viewed in the transverse direction of the timing case cover - are arranged centrally.
  • the engine mounting plate expediently assumes a 90 ° angle with the plane of the timing case cover, and the engine mount plate protrudes horizontally beyond the front of the timing case cover.
  • the engine mount plate can be arranged directly below a camshaft bearing for supporting the camshaft of the internal combustion engine.
  • the camshaft bearing usually next to each other; the engine mount plate is below the two camshaft bearings.
  • the timing chain is guided around the camshafts received in the camshaft bearings and drives them.
  • the oil separator is expediently arranged directly on the engine mount plate, it is located in particular below the engine mount plate.
  • the crankcase ventilation device may be assigned in addition to the oil separator a closing valve, in particular a mechanically acting, passive pressure control valve, which is in the flow path of the blow-by gases and switches depending on the differential pressure upstream and downstream of the valve between a closed and an open position.
  • the oil separator and the closing valve are preferably located on opposite sides of the engine mounting plate, in which an opening can be introduced, through which the blow-by gases are passed from the oil separator to the closing valve.
  • the oil separator has at least one oil separation unit in a housing, which can be inserted into a receiving opening or a receiving space in the control housing cover.
  • the receiving opening is preferably accessible via the inside of the control housing cover facing the internal combustion engine, so that the oil separator is shielded from the outside of the control housing cover and the engine mount plate. During assembly, the oil separator is inserted via the inside into the receiving opening in the timing case cover.
  • the engine mount plate forms a limiting wall of the receiving opening in the timing case cover.
  • the oil separator expediently comprises a coarse oil separation unit and a fine oil separation unit, via which the blow-by gases are passed in this order, before they are fed via the closing valve to the intake tract of the internal combustion engine.
  • the timing chain running in the oil bath lies in the intake area of the oil so that an effective separation of the oil-containing crankcase gases can be achieved via the coarse and fine oil separation unit.
  • the oil separator is expediently inserted as a preassembled unit in the receiving opening in the timing case cover and secured there by suitable measures such as screws, welding, gluing, clipping or the like.
  • suitable measures such as screws, welding, gluing, clipping or the like.
  • the components of the oil separator can also be used directly in the receiving opening in the timing case cover and secured there, for example by welding.
  • the construction units of the crankcase ventilation device are expediently pressure-tightly sealed in order to improve the separation performance, in particular the connection between the fine oil separation unit of the oil separator and the closing valve.
  • FIG. 1 shows a control housing cover for an internal combustion engine in a perspective view from behind
  • FIG. 3 is a perspective view of the upper, front part of the control housing cover and an oil separator of a crankcase ventilation device, which can be inserted into a receiving opening in the control housing cover.
  • a control housing cover 1 is shown for an internal combustion engine.
  • the control housing cover 1 has in the upper section a camshaft bearing plate 2 with two camshaft bearing recesses 3 and 4 inserted therein for storage and sealing of parallel camshafts.
  • a further recess 5 which forms a crankshaft bearing recess for receiving and supporting the crankshaft of the internal combustion engine. Adjacent to the timing case cover 1, the camshafts and the crankshaft are encompassed by a timing chain which is driven by the crankshaft and transmits the driving motion to the camshafts.
  • a motor bearing plate 6 which is integrally formed with the control housing cover 1 and with respect to the vertical plane of the Steuergeophuse- lid at a 90 ° angle and aligned horizontally protrudes forward.
  • the engine support plate 6 the holder of the engine takes place in the engine compartment of the motor vehicle.
  • the engine mount plate 6 extends immediately below the two Nockenwellenlagerausappelisme 3 and 4.
  • Under the engine mount plate 6 is located at the rear or inside of the timing cover 1, a receiving opening 7, in which an oil separator 8 is used, which is part of a crankcase ventilation device for cleaning the crankcase - or blow-by gases and transfer of the purified gases into the intake tract of the internal combustion engine.
  • the receiving opening 7 is located directly below the motor bearing plate 6, which limits the receiving opening 7 upwards.
  • the oil separator 8 is located directly below the engine mount plate 6.
  • the receiving opening 7 is accessible only via the inside of the control housing cover 1, on the front side, the receiving opening 7 is closed, so that the oil separator 8 is securely received in the receiving opening 7 after assembly ,
  • the motor bearing plate 6 and the receiving opening 7 are, based on the transverse direction centrally or symmetrically on the timing case cover. 1
  • the engine mount plate is located on the front side of the control housing cover facing away from the engine, the receiving opening or the receiving space for receiving the ⁇ lab-, which is located immediately adjacent to the engine mount plate, is accordingly also on the front and thus outside the range of motion of the timing chain, so that There is no interference with the guidance of the timing chain on the inside and back of the timing cover.
  • the oil separator 8 has a housing with a coarse oil separation unit 9 and a fine oil separation unit 10.
  • the oil separator forms with the housing and the coarse and Feinolabscheideech 9, 10 a preassembled unit which can be inserted into the receiving opening 7 on the back of the Steuergeophuse- lid and there with suitable measures by mechanical means, for example by welding or gluing to attach.
  • the crankcase ventilation device furthermore has a closing valve designed as a pressure regulating valve 1 1, which is arranged on the upper side of the engine mounting plate 6 opposite the oil separator 8.
  • the pressure regulating valve 1 1 regulates the pressure in the oil separator 8 and on the inside of the control housing cover 1 to a defined pressure level. With decreasing pressure at the clean nozzle 12, the valve member performs a lifting movement and thereby reduces the flow channel cross-section, whereby the pressure loss of the pressure regulating valve 1 1 increases.
  • Reinforced arrows show the air flow for the blow-by gases.
  • the blow-by gases originating from the crankcase are guided via the coarse oil separation unit 9, which is located on the outside of the housing of the oil separator 8.
  • the air flow is conducted into the housing interior and via the fine oil separation unit 10 arranged there.
  • the purified air flow from the housing interior of the oil separator 8 is guided upward through an opening in the motor bearing plate 6 to the overlying pressure control valve 1 1 and in the further course in the direction of the clean gas nozzle 12.
  • a laterally protruding connecting piece 13 through which electrical leads of a sensor can be guided, via which the current position of the valve body of the pressure regulating valve can be detected, is located directly above the outflow branch 12 on the housing of the pressure regulating valve 11.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)

Abstract

The invention relates to a control housing cover for an internal combustion engine having an integrated oil separator of a crankcase ventilation device. The oil separator is arranged on an engine bearing plate for holding the internal combustion engine.

Description

Beschreibung  description
Steuergehäusedeckel für eine Brennkraftmaschine Technisches Gebiet Control housing cover for an internal combustion engine. Technical field
Die Erfindung bezieht sich auf einen Steuergehäusedeckel für eine Brennkraftmaschine nach dem Oberbegriff des Anspruches 1 .  The invention relates to a control housing cover for an internal combustion engine according to the preamble of claim 1.
Stand der Technik State of the art
In der DE 10 2008 021 055 A1 wird ein Steuergehäusedeckel für eine Brennkraftmaschine beschrieben, der seitlich am Motorblock angeordnet ist und die Steuerkette der Brennkraftmaschine abdeckt. In den Steuergehäusedeckel ist eine Kurbelgehäuseentlüftungseinrichtung integriert, über die Ölpartikel aus den Blow-by-Gasen des Kurbelgehäuses der Brennkraftmaschine abgeschieden werden, wobei die Gase nach der Öl- abscheidung dem Ansaugtrakt der Brennkraftmaschine zugeführt werden. Die Kurbelgehäuseentlüftungseinrichtung umfasst einen Olabscheider, der in eine Aufnahme im Steuergehäusedeckel einsetzbar ist, welche sich im Seitenbereich des Steuergehäusedeckels befindet. Vom Olabscheider verzweigt eine Olablaufleitung für abgeschiedenes Öl nach unten und eine Rückführleitung für die gereinigten Blow-by-Gase nach oben. Sämtliche Bauelemente der Kurbelgehäuseentlüftungseinrichtung, also der Olabscheider sowie die Olablaufleitung und die Rückführleitung sind im Seitenbereich des Steuergehäusedeckels angeordnet, wobei darauf zu achten ist, dass die Führung der Steuerkette nicht durch die Bauteile der Kurbelgehäuseentlüftungseinrichtung beeinträchtigt ist. Zur Umgehung dieses Problems muss der Steuergehäusedeckel eine ver- hältnismäßig große Breite aufweisen, um die Kurbelgehäuseentlüftungseinrichtung ohne Beeinträchtigung der Steuerkette aufnehmen zu können. In DE 10 2008 021 055 A1 a control housing cover for an internal combustion engine is described, which is arranged laterally on the engine block and covers the timing chain of the internal combustion engine. In the timing case cover a crankcase ventilation device is integrated, are deposited on the oil particles from the blow-by gases of the crankcase of the internal combustion engine, wherein the gases are supplied to the intake tract of the internal combustion engine after the oil separation. The crankcase ventilation device comprises an oil separator, which can be inserted into a receptacle in the control housing cover, which is located in the side region of the control housing cover. From Olabscheider branches a Olablaufleitung for separated oil down and a return line for the cleaned blow-by gases upwards. All components of the crankcase ventilation device, so the oil separator and the Olablaufleitung and the return line are arranged in the side region of the timing case cover, it being important to ensure that the leadership of the timing chain is not affected by the components of the crankcase ventilation device. To circumvent this problem, the timing case cover must have a relatively large width to accommodate the crankcase ventilation device without affecting the timing chain.
Offenbarung der Erfindung Disclosure of the invention
Der Erfindung liegt die Aufgabe zugrunde, mit einfachen konstruktiven Maßnahmen einen kompakt bauenden Steuergehäusedeckel für eine Brennkraftmaschine mit integriertem Olabscheider einer Kurbelgehäuseentlüftungseinrichtung anzugeben.  The invention has for its object to provide a simple constructive measures a compactly constructed control housing cover for an internal combustion engine with integrated oil separator of a crankcase ventilation device.
Diese Aufgabe wird erfindungsgemäß mit den Merkmalen des Anspruches 1 gelöst. Die Unteransprüche geben zweckmäßige Weiterbildungen an. Der Steuergehäusedeckel wird seitlich an den Motorblock einer Brennkraftmaschine angeflanscht und weist eine Motorlagerplatte auf, welche zur Halterung der Brennkraftmaschine dient; über die Motorlagerplatte erfolgt die Anbindung des Motors im Motor- räum eines Kraftfahrzeugs. Der Steuergehäusedeckel nimmt außerdem einen Olabscheider einer Kurbelgehäuseentlüftungseinrichtung auf, um Ölpartikel aus den Blow- by-Gasen aus dem Kurbelgehäuse der Brennkraftmaschine abzuscheiden, wobei die die gereinigten Gase anschließend dem Ansaugtrakt der Brennkraftmaschine zugeführt werden. Der Olabscheider ist in den Steuergehäusedeckel integriert, an dem (Diabscheider erfolgt die Abscheidung der Öltröpfchen aus den Blow-by-Gasen. Der Olabscheider ist benachbart zur Motorlagerplatte angeordnet. This object is achieved with the features of claim 1. The dependent claims indicate expedient developments. The control housing cover is flanged laterally to the engine block of an internal combustion engine and has an engine mount plate which serves to hold the internal combustion engine; The connection of the engine in the engine compartment of a motor vehicle takes place via the engine mounting plate. The control housing cover also receives an oil separator of a crankcase ventilation device to separate oil particles from the blow-by gases from the crankcase of the internal combustion engine, wherein the purified gases are then supplied to the intake tract of the internal combustion engine. The oil separator is integrated in the control housing cover, on which (the separator separates the oil droplets from the blow-by gases.) The oil separator is arranged adjacent to the motor bearing plate.
Der Steuergehäusedeckel kann in dieser Ausführung kompakt ausgebildet werden. Die Motorlagerplatte, welche einteilig mit dem Steuergehäusedeckel ausgebildet ist oder fest mit diesem verbunden ist, befindet sich an einer Position im Steuergehäusedeckel, in der die Führung und Bewegung der Steuerkette, welche vom Steuergehäusedeckel überdeckt ist, nicht beeinträchtigt ist. Dementsprechend führt auch die Positionierung des Olabscheiders benachbart zur Motorlagerplatte nicht zu einer Beeinträchtigung der Steuerkette. Insgesamt erfolgt die Integration des Olabscheiders ohne Änderung der Maße des Steuergehäusedeckels, indem vorhandener Bauraum in unmittelbarer Nachbarschaft zur Motorlagerplatte für die Aufnahme des Olabscheiders genutzt wird. The timing case cover can be made compact in this embodiment. The engine mount plate, which is integrally formed with the timing cover or is fixedly connected thereto, is located at a position in the timing cover, in which the guidance and movement of the timing chain, which is covered by the timing cover is not affected. Accordingly, the positioning of the oil separator adjacent to the engine mounting plate does not lead to an impairment of the timing chain. Overall, the integration of the oil separator takes place without changing the dimensions of the control housing cover, by using existing space in the immediate vicinity of the motor bearing plate for receiving the oil separator.
Gemäß zweckmäßiger Ausführung sind die Motorlagerplatte und der Olabscheider - in Querrichtung des Steuergehäusedeckels gesehen - mittig angeordnet. Die Motorlager- platte nimmt zweckmäßigerweise mit der Ebene des Steuergehäusedeckels einen 90°- Winkel ein, die Motorlagerplatte ragt über die Vorderseite des Steuergehäusedeckels horizontal hervor. Dies hat den Vorteil, dass diese beiden Bauteile außerhalb der umlaufenden Steuerkette liegen und dass für die Führung der Steuerkette keine Änderungen erforderlich sind. Der Olabscheider kann ohne Änderung der Höhe oder Breite des Steuergehäusedeckels integriert werden. According to an expedient embodiment, the engine mount plate and the oil separator - viewed in the transverse direction of the timing case cover - are arranged centrally. The engine mounting plate expediently assumes a 90 ° angle with the plane of the timing case cover, and the engine mount plate protrudes horizontally beyond the front of the timing case cover. This has the advantage that these two components are outside the revolving timing chain and that no changes are required for the guidance of the timing chain. The oil separator can be integrated without changing the height or width of the timing case cover.
In Vertikalrichtung kann die Motorlagerplatte unmittelbar unterhalb eines Nockenwellenlagers zur Lagerung der Nockenwelle der Brennkraftmaschine angeordnet sein. Soweit die Brennkraftmaschine mit zwei Nockenwellen ausgestattet ist, befinden sich die bei- den Nockenwellenlager üblicherweise nebeneinander; die Motorlagerplatte liegt unterhalb der beiden Nockenwellenlager. Die Steuerkette ist um die in den Nockenwellenlagern aufgenommenen Nockenwellen geführt und treibt diese an. Der Olabscheider ist zweckmäßigerweise unmittelbar an der Motorlagerplatte angeordnet, er befindet sich insbesondere unterhalb der Motorlagerplatte. Der Kurbelgehäuseentlüftungseinrichtung kann zusätzlich zum Olabscheider ein Schließventil zugeordnet sein, insbesondere ein mechanisch wirkendes, passives Druckregelventil, das im Strömungsweg der Blow-by-Gase liegt und abhängig vom Differenzdruck stromauf und stromab des Ventils zwischen einer geschlossenen und einer geöffneten Position schaltet. Der Olabscheider und das Schließventil befinden sich vorzugsweise auf gegenüberliegenden Seiten der Motorlagerplatte, in die eine Öffnung eingebracht sein kann, durch die die Blow-by-Gase vom Olabscheider zum Schließventil geführt werden. Über die Anordnung des Schließventils und des Olabscheiders auf gegenüberliegenden Seiten der Motorlagerplatte erhält man neben einer kompakten Integration in den Steuergehäusedeckel den weiteren Vorteil, dass die Wärme, welche von der Brennkraftmaschine abgegeben wird, ein Einfrieren beweglicher Komponenten der Kurbelgehäuseentlüftungseinrichtung, insbesondere des Ventilkörpers des Schließventils verhindert. Der Olabscheider weist mindestens eine Ölabscheideeinheit in einem Gehäuse auf, welches in eine Aufnahmeöffnung bzw. einen Aufnahmeraum im Steuergehäusedeckel einsetzbar ist. Die Aufnahmeöffnung ist vorzugsweise über die der Brennkraftmaschine zugewandte Innenseite des Steuergehäusedeckels zugänglich, so dass der Olabscheider zur Außenseite von dem Steuergehäusedeckel und der Motorlagerplatte abge- schirmt ist. Bei der Montage wird der Olabscheider über die Innenseite in die Aufnahmeöffnung im Steuergehäusedeckel eingesetzt. Zweckmäßigerweise bildet die Motorlagerplatte eine begrenzende Wand der Aufnahmeöffnung im Steuergehäusedeckel. Der Olabscheider umfasst zweckmäßigerweise eine Grobölabscheideeinheit und eine Feinölabscheideeinheit, über die die Blow-by-Gase in dieser Reihenfolge geleitet werden, bevor sie über das Schließventil dem Ansaugtrakt der Brennkraftmaschine zugeleitet werden. Die im Ölbad laufende Steuerkette liegt im Ansaugbereich des Ölab- scheiders, so dass über die Grob- und Feinölabscheideeinheit eine effektive Abschei- dung der ölhaltigen Kurbelgehäusegase erreicht werden kann. In the vertical direction, the engine mount plate can be arranged directly below a camshaft bearing for supporting the camshaft of the internal combustion engine. Insofar as the internal combustion engine is equipped with two camshafts, the the camshaft bearing usually next to each other; the engine mount plate is below the two camshaft bearings. The timing chain is guided around the camshafts received in the camshaft bearings and drives them. The oil separator is expediently arranged directly on the engine mount plate, it is located in particular below the engine mount plate. The crankcase ventilation device may be assigned in addition to the oil separator a closing valve, in particular a mechanically acting, passive pressure control valve, which is in the flow path of the blow-by gases and switches depending on the differential pressure upstream and downstream of the valve between a closed and an open position. The oil separator and the closing valve are preferably located on opposite sides of the engine mounting plate, in which an opening can be introduced, through which the blow-by gases are passed from the oil separator to the closing valve. On the arrangement of the closing valve and the oil separator on opposite sides of the engine mount plate is obtained in addition to a compact integration in the timing case cover the further advantage that the heat which is discharged from the engine, freezing of movable components of the crankcase ventilation device, in particular the valve body of the closing valve prevented , The oil separator has at least one oil separation unit in a housing, which can be inserted into a receiving opening or a receiving space in the control housing cover. The receiving opening is preferably accessible via the inside of the control housing cover facing the internal combustion engine, so that the oil separator is shielded from the outside of the control housing cover and the engine mount plate. During assembly, the oil separator is inserted via the inside into the receiving opening in the timing case cover. Conveniently, the engine mount plate forms a limiting wall of the receiving opening in the timing case cover. The oil separator expediently comprises a coarse oil separation unit and a fine oil separation unit, via which the blow-by gases are passed in this order, before they are fed via the closing valve to the intake tract of the internal combustion engine. The timing chain running in the oil bath lies in the intake area of the oil so that an effective separation of the oil-containing crankcase gases can be achieved via the coarse and fine oil separation unit.
Der Ölabscheider wird zweckmäßigerweise als eine vormontierte Baueinheit in die Auf- nahmeöffnung im Steuergehäusedeckel eingeschoben und dort durch geeignete Maßnahmen wie Schrauben, Schweißen, Kleben, Clipsen oder Ähnliches gesichert. Gegebenenfalls können die Komponenten des Ölabscheiders auch unmittelbar in die Auf- nahmeöffnung im Steuergehäusedeckel eingesetzt und dort gesichert werden, beispielsweise durch Schweißen. The oil separator is expediently inserted as a preassembled unit in the receiving opening in the timing case cover and secured there by suitable measures such as screws, welding, gluing, clipping or the like. Optionally, the components of the oil separator can also be used directly in the receiving opening in the timing case cover and secured there, for example by welding.
Zweckmäßigerweise sind die Baueineinheiten der Kurbelgehäuseentlüftungseinrichtung zur Verbesserung der Abscheideleistung druckdicht abgedichtet, insbesondere die Verbindung zwischen der Feinölabscheideeinheit des Ölabscheiders und dem Schließventil. The construction units of the crankcase ventilation device are expediently pressure-tightly sealed in order to improve the separation performance, in particular the connection between the fine oil separation unit of the oil separator and the closing valve.
Kurze Beschreibung der Zeichnungen Brief description of the drawings
Weitere Vorteile und zweckmäßige Ausführungen sind den weiteren Ansprüchen, der Figurenbeschreibung und den Zeichnungen zu entnehmen. Es zeigen: Fig. 1 einen Steuergehäusedeckel für eine Brennkraftmaschine in einer perspektivischen Ansicht von hinten,  Further advantages and expedient embodiments can be taken from the further claims, the description of the figures and the drawings. 1 shows a control housing cover for an internal combustion engine in a perspective view from behind,
Fig. 2 der Steuergehäusedeckel in direkter Ansicht von hinten, Fig. 3 in perspektivischer Darstellung der obere, vordere Teil des Steuergehäusedeckels und ein Ölabscheider einer Kurbelgehäuseentlüftungseinrichtung, der in eine Aufnahmeöffnung im Steuergehäusedeckel einschiebbar ist. FIG. 3 is a perspective view of the upper, front part of the control housing cover and an oil separator of a crankcase ventilation device, which can be inserted into a receiving opening in the control housing cover. FIG.
In den Figuren sind gleiche Bauteile mit gleichen Bezugszeichen versehen. In the figures, the same components are provided with the same reference numerals.
Ausführungsform(en) der Erfindung Embodiment (s) of the invention
In den Figuren ist ein Steuergehäusedeckel 1 für eine Brennkraftmaschine dargestellt. Der Steuergehäusedeckel 1 weist im oberen Abschnitt eine Nockenwellenlagerplatte 2 mit zwei darin eingebrachten Nockenwellenlagerausnehmungen 3 und 4 zur Lagerung und Abdichtung parallel angeordneter Nockenwellen auf. Im unteren Abschnitt des Steuergehäusedeckels 1 befindet sich eine weitere Ausnehmung 5, die eine Kurbel- wellenlagerausnehmung zur Aufnahme und Lagerung der Kurbelwelle der Brennkraftmaschine bildet. Benachbart zum Steuergehäusedeckel 1 sind die Nockenwellen und die Kurbelwelle von einer Steuerkette umgriffen, welche von der Kurbelwelle angetrieben wird und die Antriebsbewegung auf die Nockenwellen überträgt. In the figures, a control housing cover 1 is shown for an internal combustion engine. The control housing cover 1 has in the upper section a camshaft bearing plate 2 with two camshaft bearing recesses 3 and 4 inserted therein for storage and sealing of parallel camshafts. In the lower portion of the control housing cover 1 is a further recess 5, which forms a crankshaft bearing recess for receiving and supporting the crankshaft of the internal combustion engine. Adjacent to the timing case cover 1, the camshafts and the crankshaft are encompassed by a timing chain which is driven by the crankshaft and transmits the driving motion to the camshafts.
An der Vorderseite befindet sich eine Motorlagerplatte 6, die einstückig mit dem Steuergehäusedeckel 1 ausgebildet ist und gegenüber der Vertikalebene des Steuergehäuse- deckels in einem 90°-Winkel und horizontal ausgerichtet nach vorne übersteht. Über die Motorlagerplatte 6 erfolgt die Halterung der Brennkraftmaschine im Motorraum des Kraftfahrzeugs. Die Motorlagerplatte 6 erstreckt sich unmittelbar unterhalb der beiden Nockenwellenlagerausnehmungen 3 und 4. Unter der Motorlagerplatte 6 befindet sich an der Rück- bzw. Innenseite des Steuergehäusedeckels 1 eine Aufnahmeöffnung 7, in das ein Ölabscheider 8 einsetzbar ist, welcher Bestandteil einer Kurbelgehäuseentlüftungseinrichtung zur Reinigung von Kurbelgehäuse- bzw. Blow-by-Gasen und Überführung der gereinigten Gase in den Ansaugtrakt der Brennkraftmaschine ist. Die Aufnahmeöffnung 7 liegt unmittelbar unterhalb der Motorlagerplatte 6, welche die Aufnahmeöffnung 7 nach oben begrenzt. Im eingesetzten Zustand liegt der Ölabscheider 8 unmittelbar unterhalb der Motorlagerplatte 6. Die Aufnahmeöffnung 7 ist nur über die Innenseite des Steuergehäusedeckels 1 zugänglich, an der Vorderseite ist die Aufnahmeöffnung 7 verschlossen, so dass der Ölabscheider 8 nach der Montage sicher in der Aufnahmeöffnung 7 aufgenommen ist. At the front there is a motor bearing plate 6, which is integrally formed with the control housing cover 1 and with respect to the vertical plane of the Steuergehäuse- lid at a 90 ° angle and aligned horizontally protrudes forward. About the engine support plate 6, the holder of the engine takes place in the engine compartment of the motor vehicle. The engine mount plate 6 extends immediately below the two Nockenwellenlagerausnehmungen 3 and 4. Under the engine mount plate 6 is located at the rear or inside of the timing cover 1, a receiving opening 7, in which an oil separator 8 is used, which is part of a crankcase ventilation device for cleaning the crankcase - or blow-by gases and transfer of the purified gases into the intake tract of the internal combustion engine. The receiving opening 7 is located directly below the motor bearing plate 6, which limits the receiving opening 7 upwards. In the inserted state, the oil separator 8 is located directly below the engine mount plate 6. The receiving opening 7 is accessible only via the inside of the control housing cover 1, on the front side, the receiving opening 7 is closed, so that the oil separator 8 is securely received in the receiving opening 7 after assembly ,
Die Motorlagerplatte 6 und die Aufnahmeöffnung 7 liegen, bezogen auf die Querrichtung mittig bzw. symmetrisch am Steuergehäusedeckel 1 . Die Motorlagerplatte befindet sich auf der der Brennkraftmaschine abgewandten Vorderseite des Steuergehäusedeckels, die Aufnahmeöffnung bzw. der Aufnahmeraum zur Aufnahme des Ölab- scheiders, welcher unmittelbar benachbart zur Motorlagerplatte angeordnet ist, liegt dementsprechend ebenfalls an der Vorderseite und damit außerhalb des Bewegungsraums der Steuerkette, so dass es an der Innen- bzw. Rückseite des Steuergehäusedeckels keine Beeinträchtigungen bei der Führung der Steuerkette gibt. Wie Fig. 3 zu entnehmen, weist der Ölabscheider 8 ein Gehäuse mit einer Grobölab- scheideeinheit 9 und einer Feinolabscheideeinheit 10 auf. Der Ölabscheider bildet mit dem Gehäuse und der Grob- sowie Feinolabscheideeinheit 9, 10 eine vormontierbare Baueinheit, die in die Aufnahmeöffnung 7 über die Rückseite des Steuergehäuse- deckels einführbar und dort mit geeigneten Maßnahmen auf mechanischem Wege, beispielsweise durch Schweißen oder Kleben zu befestigen ist. The motor bearing plate 6 and the receiving opening 7 are, based on the transverse direction centrally or symmetrically on the timing case cover. 1 The engine mount plate is located on the front side of the control housing cover facing away from the engine, the receiving opening or the receiving space for receiving the Ölab-, which is located immediately adjacent to the engine mount plate, is accordingly also on the front and thus outside the range of motion of the timing chain, so that There is no interference with the guidance of the timing chain on the inside and back of the timing cover. As shown in FIG. 3, the oil separator 8 has a housing with a coarse oil separation unit 9 and a fine oil separation unit 10. The oil separator forms with the housing and the coarse and Feinolabscheideeinheit 9, 10 a preassembled unit which can be inserted into the receiving opening 7 on the back of the Steuergehäuse- lid and there with suitable measures by mechanical means, for example by welding or gluing to attach.
Die Kurbelgehäuseentlüftungseinrichtung weist des Weiteren ein als Druckregelventil 1 1 ausgeführtes Schließventil auf, das auf der dem Ölabscheider 8 gegenüberliegenden Oberseite der Motorlagerplatte 6 angeordnet ist. Das Druckregelventil 1 1 regelt den Druck im Ölabscheider 8 und auf der Innenseite des Steuergehäusedeckels 1 auf ein definiertes Druckniveau. Mit abnehmendem Druck am Reingasstutzen 12 vollführt das Ventilglied eine Hubbewegung und reduziert dadurch den Strömungskanalquerschnitt, wodurch sich der Druckverlust des Druckregelventils 1 1 erhöht. The crankcase ventilation device furthermore has a closing valve designed as a pressure regulating valve 1 1, which is arranged on the upper side of the engine mounting plate 6 opposite the oil separator 8. The pressure regulating valve 1 1 regulates the pressure in the oil separator 8 and on the inside of the control housing cover 1 to a defined pressure level. With decreasing pressure at the clean nozzle 12, the valve member performs a lifting movement and thereby reduces the flow channel cross-section, whereby the pressure loss of the pressure regulating valve 1 1 increases.
Mit verstärkten Pfeilen ist die Luftführung für die Blow-by-Gase dargestellt. Zunächst werden die vom Kurbelgehäuse stammenden Blow-by-Gase über die Grobölabscheide- einheit 9 geführt, die sich an der Außenseite des Gehäuses des Ölabscheiders 8 befindet. Anschließend wird der Luftstrom in das Gehäuseinnere und über die dort ange- ordnete Feinolabscheideeinheit 10 geleitet. Im weiteren Verlauf wird der gereinigte Luftstrom aus dem Gehäuseinneren des Ölabscheiders 8 nach oben durch eine Öffnung in der Motorlagerplatte 6 zum darüber liegenden Druckregelventil 1 1 und im weiteren Verlauf in Richtung Reingasstutzen 12 geführt. Wie Fig. 3 des Weiteren zu entnehmen, befindet sich unmittelbar oberhalb des Abströmstutzens 12 am Gehäuse des Druckregelventils 1 1 ein seitlich ausragender Anschlussstutzen 13, durch den elektrische Leitungen eines Sensors führbar sind, über den die aktuelle Position des Ventilkörpers des Druckregelventils detektierbar ist. Reinforced arrows show the air flow for the blow-by gases. First, the blow-by gases originating from the crankcase are guided via the coarse oil separation unit 9, which is located on the outside of the housing of the oil separator 8. Subsequently, the air flow is conducted into the housing interior and via the fine oil separation unit 10 arranged there. In the further course of the purified air flow from the housing interior of the oil separator 8 is guided upward through an opening in the motor bearing plate 6 to the overlying pressure control valve 1 1 and in the further course in the direction of the clean gas nozzle 12. As can also be seen from FIG. 3, a laterally protruding connecting piece 13, through which electrical leads of a sensor can be guided, via which the current position of the valve body of the pressure regulating valve can be detected, is located directly above the outflow branch 12 on the housing of the pressure regulating valve 11.

Claims

Ansprüche  claims
Steuergehäusedeckel für eine Brennkraftmaschine, mit einem in den Steuergehäusedeckel (1 ) integrierten Olabscheider (8) einer Kurbelgehäuseentlüftungseinrichtung, dadurch gekennzeichnet, dass der Steuergehäusedeckel (1 ) eine Motorlagerplatte (6) zur Halterung der Brenn kraftmasch ine aufweist und dass der Olabscheider (8) benachbart zur Motorlagerplatte (6) angeordnet ist. Control housing cover for an internal combustion engine, with an integrated in the control housing cover (1) Olabscheider (8) a Kurbelgehäuseentlüftungseinrichtung, characterized in that the control housing cover (1) has a motor bearing plate (6) for holding the internal combustion engine and that the oil separator (8) adjacent to the engine mounting plate (6) is arranged.
Steuergehäusedeckel nach Anspruch 1 , dadurch gekennzeichnet, dass die Motorlagerplatte (6) und der Olabscheider (8) mittig am Steuergehäusedeckel (1 ) angeordnet sind. Control housing cover according to claim 1, characterized in that the motor bearing plate (6) and the oil separator (8) are arranged centrally on the control housing cover (1).
Steuergehäusedeckel nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass dieControl housing cover according to claim 1 or 2, characterized in that the
Motorlagerplatte (6) unmittelbar unterhalb einer Nockenwellenlagerausnehmung (3, 4) angeordnet ist. Motor bearing plate (6) immediately below a camshaft bearing recess (3, 4) is arranged.
Steuergehäusedeckel nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die Motorlagerplatte (6) mit der Ebene des Steuergehäusedeckels (1 ) einen 90°-Winkel einschließt. Control housing cover according to one of claims 1 to 3, characterized in that the motor bearing plate (6) with the plane of the control housing cover (1) encloses a 90 ° angle.
Steuergehäusedeckel nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass die Motorlagerplatte (6) auf der Vorderseite des Steuergehäusedeckels (1 ) angeordnet ist. Control housing cover according to one of claims 1 to 4, characterized in that the motor bearing plate (6) is arranged on the front side of the control housing cover (1).
Steuergehäusedeckel nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass der Olabscheider (8) unterhalb der Motorlagerplatte (6) angeordnet ist. Control housing cover according to one of claims 1 to 5, characterized in that the oil separator (8) below the engine support plate (6) is arranged.
Steuergehäusedeckel nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass der Olabscheider (8) und ein Schließventil (1 1 ) der Kurbelgehäuseentlüftungseinrichtung auf gegenüberliegenden Seiten der Motorlagerplatte (6) angeordnet sind. Control housing cover according to one of claims 1 to 6, characterized in that the oil separator (8) and a closing valve (1 1) of the crankcase ventilation device are arranged on opposite sides of the engine mounting plate (6).
Steuergehäusedeckel nach Anspruch 7, dadurch gekennzeichnet, dass in die Motorlagerplatte (6) eine Öffnung für die vom Olabscheider (8) zum Schließventil (1 1 ) geführten Blow-By-Gase eingebracht ist. Control housing cover according to claim 7, characterized in that in the motor bearing plate (6) has an opening for the from the oil separator (8) to the closing valve (1 1) guided blow-by gases is introduced.
9. Steuergehäusedeckel nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, dass eine Aufnahmeöffnung (7) zur Aufnahme des Ölabscheiders (8) über die der Brennkraftmaschine zugewandte Innenseite in den Steuergehäusedeckel (1 ) zugänglich ist. 9. Control housing cover according to one of claims 1 to 8, characterized in that a receiving opening (7) for receiving the oil separator (8) via the internal combustion engine facing inside in the control housing cover (1) is accessible.
10. Steuergehäusedeckel nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, dass der Olabscheider (8) eine Grobölabscheideeinheit (9) und eine Feinölab- scheideeinheit (10) aufweist. 10. Control housing cover according to one of claims 1 to 9, characterized in that the oil separator (8) has a coarse oil separation unit (9) and a fine oil separation unit (10).
1 1 . Brennkraftmaschine mit einem Steuergehäusedeckel (1 ) nach einem der Ansprüche 1 bis 10. 12. Olabscheider einer Kurbelgehäuseentlüftungseinrichtung, dadurch gekennzeichnet, dass der Olabscheider (8) in einem Steuergehäusedeckel (1 ) nach einem der Ansprüche 1 bis 10 integriert ist. 1 1. Internal combustion engine with a control housing cover (1) according to one of claims 1 to 10. 12. Olabscheider a crankcase ventilation device, characterized in that the oil separator (8) is integrated in a control housing cover (1) according to one of claims 1 to 10.
EP12748476.4A 2011-09-08 2012-08-20 Control housing cover for an internal combustion engine Withdrawn EP2753803A1 (en)

Applications Claiming Priority (2)

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DE102011112585A DE102011112585A1 (en) 2011-09-08 2011-09-08 Control housing cover for an internal combustion engine
PCT/EP2012/066177 WO2013034424A1 (en) 2011-09-08 2012-08-20 Control housing cover for an internal combustion engine

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EP (1) EP2753803A1 (en)
DE (1) DE102011112585A1 (en)
WO (1) WO2013034424A1 (en)

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US9267405B2 (en) 2016-02-23
US20140182525A1 (en) 2014-07-03
WO2013034424A1 (en) 2013-03-14

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