EP1295027A1 - Piston internal combustion engine comprising a deflection-resistant cross brace for sealingly fixing fuel injection devices - Google Patents

Piston internal combustion engine comprising a deflection-resistant cross brace for sealingly fixing fuel injection devices

Info

Publication number
EP1295027A1
EP1295027A1 EP01943374A EP01943374A EP1295027A1 EP 1295027 A1 EP1295027 A1 EP 1295027A1 EP 01943374 A EP01943374 A EP 01943374A EP 01943374 A EP01943374 A EP 01943374A EP 1295027 A1 EP1295027 A1 EP 1295027A1
Authority
EP
European Patent Office
Prior art keywords
yoke
internal combustion
combustion engine
cylinder head
bearing cover
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.)
Granted
Application number
EP01943374A
Other languages
German (de)
French (fr)
Other versions
EP1295027B1 (en
Inventor
Rainer Kurtenbach
Jakob Nehl
Hans-Dieter Sonntag
Volker Theisen
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.)
FEV Europe GmbH
Original Assignee
FEV Motorentechnik GmbH and Co KG
Isuzu Motors Ltd
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 FEV Motorentechnik GmbH and Co KG, Isuzu Motors Ltd filed Critical FEV Motorentechnik GmbH and Co KG
Publication of EP1295027A1 publication Critical patent/EP1295027A1/en
Application granted granted Critical
Publication of EP1295027B1 publication Critical patent/EP1295027B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
    • F02M61/14—Arrangements of injectors with respect to engines; Mounting of injectors

Definitions

  • the injection devices are inserted with their nozzle part sealed into an opening in the cylinder head and fixed to the cylinder head by means of tensionable fastening means. It is known from DE-A-26 49 157 to provide the injection device with a separate transverse yoke, by means of which the injection device is fixed close to the insertion opening with two clamping screws on the cylinder head.
  • the injection device is T-shaped at the upper end, one transverse branch containing the fuel supply and the other transverse branch receiving the electrical actuation of the valve.
  • a bridge-shaped tensioning element running in the longitudinal direction of the engine in such a way that each is fixed on the cylinder head via a tensioning screw arranged between two adjacent injection devices.
  • a separate screw connection is provided on the cylinder head for attaching the bridge-shaped tensioning element for attaching the injection devices.
  • Fastening element has the disadvantage that vibrations emanating from the injectors emit sound from the top of the engine. Furthermore, due to the high injection pressures, the fastening screws have to absorb high forces, so that the assigned areas with the threaded holes on the cylinder head must be correspondingly solid in this area.
  • the invention has for its object to provide a fastening of the injection devices for a piston internal combustion engine of the type described above, with which the disadvantages described above are avoided.
  • a piston-type internal combustion engine with overhead camshafts for actuating the gas exchange valves, the adjacent bearings of the intake-side camshaft and the exhaust-side camshaft each having a bearing cover element that closes both bearings, and with direct fuel injection by in each case one injection device associated with a cylinder with a nozzle part , which is inserted in a sealed manner in an opening in the cylinder head, and with a yoke which is rigidly attached to the cylinder head and at least over one injector and which is connected to clamping means by which the injectors are clamped in a sealing manner with respect to the yoke, and the yoke with at least two adjacent bearing cover elements is connected.
  • the advantage of the solution according to the invention is that the already existing fastening means for the bearing cover elements for fastening the yoke are also used for bracing the injection device.
  • the yoke is essentially rigid, so that in connection with the possible voltage via the fastening means of the bearing cover elements, the overall arrangement can be made very stiff and so vibration excitation is practically prevented both via the camshafts and via the injection devices and thus the sound radiation in this area is significantly reduced.
  • a longitudinal beam forming the yoke and spanning a plurality of injection devices is provided, which is fastened to the cylinder head via two fastening means of the bearing cover elements adjacent to one injection device.
  • the yoke extends transversely to the alignment of the camshafts and is fixed in each case via the fastening screws of the bearing cover elements. This makes it possible to firmly clamp an injection device with a yoke between two adjacent bearing cover elements.
  • the yoke can be detachably connected to the bearing cover elements.
  • the yoke is integrally connected to the bearing cover elements in a cohesive manner.
  • This component can be optimized both in terms of its strength and its bending stiffness by appropriate profiling, taking into account the requirement for the structural strength, separate fastening means for the injection devices being dispensed with.
  • the design also allows the entire component to vibrate. Reduce terg not so that the excitations on the changing camshaft forces and on the pressure pulsations of the injection devices do not lead to sound radiation.
  • the bearing cover elements are integrally connected to one another with at least one additional longitudinal spar.
  • the arrangement of a continuous longitudinal spar, preferably two parallel longitudinal spars, results in a very compact, lattice-like rigid component for fixing the camshaft bearings and the injection devices, which not only facilitates the assembly of the camshaft bearings and the injection devices, but also the transmission of structure-borne noise to the outside is practically prevented.
  • FIG. 1 is a plan view of a 4-cylinder piston internal combustion engine with a first embodiment of a yoke for fastening the injection devices
  • Fig. 2 shows a modification of the embodiment.
  • FIG. 4 in an enlarged scale, a partial side view. Arrow A in Fig. 1.
  • FIG. 1 shows a top view of the cylinder head 1 of a 4-cylinder piston internal combustion engine.
  • the gas exchange valves of the individual cylinders I, II, III and IV, which are not shown in more detail here, are actuated on the inlet side via an overhead camshaft 2 and 3.
  • the camshafts are supported on the cylinder head 1 via camshaft bearings 4 located at the ends and between two adjacent cylinders, the upper end of the camshaft bearing 4 taking place via bearing caps 5 which overlap both camshaft bearings 4.
  • the bearing cover elements 5 are firmly connected to the cylinder head 1 via fastening screws 6.
  • the individual cylinders I, II, III and IV are each one
  • Injection device 7 assigned, which is designed in the usual way and is inserted into an opening in the cylinder head, so that its nozzle part extends into the interior of the associated cylinder.
  • a yoke 8 is provided which extends across the injection devices 7 and which, in the exemplary embodiment shown here, is designed as a longitudinal beam spanning several injection devices 7 and is integrally connected to the bearing cover elements 5 in one piece. All the injection devices 7 are covered by the continuous side member serving as a yoke 8 between two bearing cover elements 5 and braced with the cylinder head 1 via the fastening screws 6 of the bearing cover elements 5.
  • Fig. 2 shows a modification of the embodiment according. 1.
  • the bearing cover elements 5 are integrally integrally connected at their outer end sides to a continuous longitudinal spar 9, so that an approximately lattice-shaped, rigid component results. via which the camshaft bearings and the injection devices are fixed on the cylinder head.
  • Fig. 3 shows a modified embodiment.
  • the bearing cover elements 5 are designed in the usual way as individual elements and fixed on the cylinder head 1.
  • the individual injection devices 7 for the cylinders are fixed via individual yokes 8.1 via the fastening means 6 of the bearing cover elements 5.
  • the individual yokes 8.1 are arranged transversely and at an angle to the alignment of the camshafts 2, 3.
  • the yokes 8.1 are designed to be resistant to bending by means of a corresponding shaping, and there is the advantage that the individual yoke 8.1 is fixed in each case via the already existing fastening of the bearing cover elements 5 on the cylinder head 1.
  • This embodiment can also be designed such that the yokes 8.1 are integrally connected to the bearing cover elements 5 and thus a structural unit corresponding to FIG. 1 or FIG. 2 is available.
  • FIG. 4 shows the arrangement of such a component in an enlarged partial side view in the direction of arrow A in FIG. 1.
  • bearing blocks 10 are arranged for receiving the crankshaft bearings, each of which is closed on its upper side by bearing cover elements 5.
  • the bearing cover elements 5 are connected to one another via a continuous longitudinal beam which forms a yoke 8 between two bearing cover elements 5.1 and 5.2, respectively, which overlaps the associated injection device 7.
  • tensioning means 11 are provided which, after the fixing, enables the injection device 7 to be braced in a targeted manner with the required contact pressure.
  • the tensioning means 11 can be formed by a plate spring assembly or the like, which is placed on the injection device 7 and, when the bearing cover elements are screwed together, simultaneously brings about the required sealing bracing between the injection device 7, yoke 8 and cylinder head 1.
  • tensioning means possibly combined with springs, which are essentially designed as a screw-nut combination and which, after the longitudinal member has been mounted, enable the individual injection devices to be braced separately.
  • an anti-rotation device for the injection devices which are either provided for by corresponding constructive measures in the transition area between the cylinder head and the injection device or which are assigned to the connection between the yoke and the injection device.

Abstract

The invention relates to a piston internal combustion engine comprising upper camshafts (2, 3) for actuating gas exchange valves, whereby respectively adjacent lying bearings of the induction-side camshaft (2) and the exhaust-side camshaft (3) are provided with a covering element (5) scaling both bearings. The inventive engine is also provided with direct fuel injection by means of a respective injector device (7) which has a nozzle part and which is associated with a cylinder (I, II, III, IV). The nozzle part is sealingly inserted into an opening in the cylinder head (1) and a cross brace (8) is fixed to the cylinder head (1) in a deflection-resistant manner, overlapping with at least one injector device (7). The cross brace is connected to tightening elements (11) enabling the injector devices (7) to be sealingly tightened in relation to the cross brace (8). The cross brace (8) is connected to least two neighbouring bearing-covering elements (5).

Description

Bezeichnung: Kolbenbrennkraftmaschine mit biegesteifem Joch zur abdichtenden Befestigung von Kraftstoffein- spritzeinrichtungenDescription: Piston-type internal combustion engine with a rigid yoke for the sealing attachment of fuel injection devices
Beschreibungdescription
Bei Kolbenbrennkraftmaschinen mit direkter Kraftstoffeinspritzung werden die Einspritzeinrichtungen mit ihrem Düsenteil abgedichtet in eine Öffnung im Zylinderkopf eingesteckt und über verspannbare Befestigungsmittel am Zylinderkopf festgelegt. So ist es aus DE-A-26 49 157 bekannt, die Einspritzeinrichtung jeweils mit einem gesonderten Querjoch zu versehen, über das die Einspritzeinrichtung mit zwei Spannschrauben am Zylinderkopf dicht neben der Einstecköffnung festgelegt wird.In piston internal combustion engines with direct fuel injection, the injection devices are inserted with their nozzle part sealed into an opening in the cylinder head and fixed to the cylinder head by means of tensionable fastening means. It is known from DE-A-26 49 157 to provide the injection device with a separate transverse yoke, by means of which the injection device is fixed close to the insertion opening with two clamping screws on the cylinder head.
Aus der gleichen Veröffentlichung ist es bekannt, am Zylinderkopf einen Stützansatz vorzusehen, auf dem sich das freie Ende eines Klemmmittels abstützt, das mit seinem anderen ga- belförmig ausgebildeten Ende auf der Einspritzeinrichtung aufliegt. Die Einspritzeinrichtung wird dann über eine zwischen dem Stützansatz und der Einspritzeinrichtung verlaufende Spannschraube gegenüber dem Zylinderkopf abdichtend verspannt. Derartige Einzelbefestigungen sind in Herstellung und Montage sehr aufwendig.From the same publication it is known to provide a support attachment on the cylinder head, on which the free end of a clamping means is supported, the other fork-shaped end of which rests on the injection device. The injection device is then clamped in a sealing manner with respect to the cylinder head by means of a tensioning screw running between the support attachment and the injection device. Such individual attachments are very expensive to manufacture and assemble.
Aus EP-A-0 751 290 ist eine Weiterentwicklung der vorstehend beschriebenen Befestigungsart bekannt. Bei dieser Bauform ist die Einspritzeinrichtung am oberen Ende T-förmig ausgebildet, wobei der eine Querast die Kraftstoffzufuhr enthält und der anderen Querast die elektrische Ansteuerung des Ventils aufnimmt. Bei einer Kolbenbrennkraftmaschine mit Reihenanordnung der Zylinder sind dann mehrere der nebeneinander liegenden Einspritzeinrichtungen über ein in Motorlängsrichtung verlau- fendes brückenförmiges Spannelement in der Weise festgelegt, das jeweils über eine zwischen zwei benachbarten Einspritzeinrichtungen angeordnete Spannschraube am Zylinderkopf befe- stigt ist. Auch hier ist für die Befestigung des brückenför- migen Spannelementes jeweils eine gesonderte Schraubverbindung am Zylinderkopf für die Befestigung der Einspritzeinrichtungen vorgesehen. Diese vorbekannte Bauweise hat auf- grund der elastischen Verspannung durch das brückenförmigeFrom EP-A-0 751 290 a further development of the type of fastening described above is known. In this design, the injection device is T-shaped at the upper end, one transverse branch containing the fuel supply and the other transverse branch receiving the electrical actuation of the valve. In a piston internal combustion engine with a row arrangement of the cylinders, several of the injection devices lying next to one another are then fixed via a bridge-shaped tensioning element running in the longitudinal direction of the engine in such a way that each is fixed on the cylinder head via a tensioning screw arranged between two adjacent injection devices. is increasing. Here too, a separate screw connection is provided on the cylinder head for attaching the bridge-shaped tensioning element for attaching the injection devices. This previously known construction has due to the elastic bracing by the bridge-shaped
Befestigungselement den Nachteil, daß von den Injektoren ausgehende Schwingungsanregungen eine Schallabstrahlung von der Oberseite des Motors erfolgt. Ferner müssen aufgrund der hohen Einspritzdrücke die Befestigungsschrauben hohe Kräfte aufnehmen, so daß die zugeordneten Bereiche mit den Geindelö- chern am Zylinderkopf in diesem Bereich entsprechend massiv ausgebildet sein müssen.Fastening element has the disadvantage that vibrations emanating from the injectors emit sound from the top of the engine. Furthermore, due to the high injection pressures, the fastening screws have to absorb high forces, so that the assigned areas with the threaded holes on the cylinder head must be correspondingly solid in this area.
Der Erfindung liegt die Aufgabe zugrunde, für eine Kolben- brennkraftmaschine der vorstehend bezeichneten Art eine Befestigung der Einspritzeinrichtungen zu schaffen, mit der die vorstehend beschriebenen Nachteile vermieden sind.The invention has for its object to provide a fastening of the injection devices for a piston internal combustion engine of the type described above, with which the disadvantages described above are avoided.
Diese Aufgabe wird gelöst mit einer Kolbenbrennkraftmaschine mit obenliegenden Nockenwellen zur Betätigung der Gaswechselventile, wobei jeweils nebeneinander liegende Lager der ein- laßseitigen Nockenwelle und der auslaßseitigen Nockenwelle ein beide Lager abschließendes Lagerdeckelelement aufweisen, und mit direkter Kraftstoffeinspritzung durch jeweils eine, einem Zylinder zugeordnete Einspritzeinrichtung mit Düsenteil, das abgedichtet in einer Öffnung im Zylinderkopf eingesteckt ist, und mit einem am Zylinderkopf biegesteif befestigten, wenigstens eine Einspritzeinrichtung übergreifenden Joch, das mit Spannmitteln in Verbindung steht, durch die die Einspritzeinrichtungen gegenüber dem Joch abdichtend verspannt sind, und wobei das Joch mit wenigstens zwei benachbarten Lagerdeckelelementen verbunden ist. Der Vorteil der erfindungsgemäßen Lösung besteht darin, daß die ohnehin vorhandenen Befestigungsmittel für die Lagerdeckelelemente zur Befestigung des Jochs zum Verspannen der Einspritzeinrichtung mit genutzt werden. Das Joch ist im wesentlichen biegesteif ausgebildet, so daß in Verbindung mit der möglichen Verspan- nung über die Befestigungsmittel der Lagerdeckelelemente die Gesamtanordnung sehr steif ausgebildet werden kann und so eine Schwingungsanregung sowohl über die Nockenwellen als auch über die Einspritzeinrichtungen praktisch unterbunden ist und damit die Schallabstrahlung in diesem Bereich deutlich reduziert ist. Außerdem ergibt sich eine bessere Übertragung der für die Verspannung der Einspritzeinrichtung erforderlichen Haltekräfte auf den Zylinderkopf sowie eine verbesserte Dauerhaltbarkeit, da die ohnehin massiveren Bereiche der Befe- stigung der Nockenwellen mit genutzt werden.This object is achieved with a piston-type internal combustion engine with overhead camshafts for actuating the gas exchange valves, the adjacent bearings of the intake-side camshaft and the exhaust-side camshaft each having a bearing cover element that closes both bearings, and with direct fuel injection by in each case one injection device associated with a cylinder with a nozzle part , which is inserted in a sealed manner in an opening in the cylinder head, and with a yoke which is rigidly attached to the cylinder head and at least over one injector and which is connected to clamping means by which the injectors are clamped in a sealing manner with respect to the yoke, and the yoke with at least two adjacent bearing cover elements is connected. The advantage of the solution according to the invention is that the already existing fastening means for the bearing cover elements for fastening the yoke are also used for bracing the injection device. The yoke is essentially rigid, so that in connection with the possible voltage via the fastening means of the bearing cover elements, the overall arrangement can be made very stiff and so vibration excitation is practically prevented both via the camshafts and via the injection devices and thus the sound radiation in this area is significantly reduced. In addition, there is a better transmission of the holding forces required for bracing the injection device to the cylinder head and an improved durability, since the already more massive areas of the fastening of the camshafts are also used.
In einer besonders vorteilhaften weiteren Ausgestaltung der Erfindung ist vorgesehen, daß ein das Joch bildender, mehrere Einspritzeinrichtungen übergreifender Längsträger vorgesehen ist, der über jeweils zwei einer Einspritzeinrichtung benachbarte Befestigungsmittel der Lagerdeckelelemente am Zylinderkopf befestigt ist.In a particularly advantageous further embodiment of the invention, it is provided that a longitudinal beam forming the yoke and spanning a plurality of injection devices is provided, which is fastened to the cylinder head via two fastening means of the bearing cover elements adjacent to one injection device.
In einer Ausgestaltung der Erfindung ist vorgesehen, daß das Joch quer zur Ausrichtung der Nockenwellen verläuft und jeweils über die Befestigungsschrauben der Lagerdeckelelemente festgelegt ist. Damit ist es möglich, jeweils eine Einspritzeinrichtung mit einem Joch zwischen zwei benachbarten Lagerdeckelelementen fest zu verspannen. Das Joch kann hierbei lösbar mit den Lagerdeckelelementen verbunden sein.In one embodiment of the invention it is provided that the yoke extends transversely to the alignment of the camshafts and is fixed in each case via the fastening screws of the bearing cover elements. This makes it possible to firmly clamp an injection device with a yoke between two adjacent bearing cover elements. The yoke can be detachably connected to the bearing cover elements.
Besonders vorteilhaft ist es jedoch, wenn das Joch einsstük- kig stoffschlüssig mit den Lagerdeckelelementen verbunden ist. Hierdurch ergibt sich eine Baueinheit, über die sowohl die Lager der Nockenwellen als auch die Einspritzeinrichtungen am Zylinderkopf gehalten werden. Dieses Bauteil kann sowohl hinsichtlich seiner Festigkeit als auch seiner Biege- steifigkeit durch eine entsprechende Profilgebung unter Berücksichtigung der Anforderung an die Gestaltfestigkeit opti- miert werden, wobei gesonderte Befestigunsmittel für die Einspritzeinrichtungen entfallen. Durch die Formgebung läßt sich auch die Schwingungswilligkeit des gesamten Bauelementes wei- tergehend vermindern, so daß die Anregungen über die wechselnden Nockenwellenkräfte und über die Druckpulsationen der Einspritzeinrichtungen nicht zu einer Schallabstrahlung führen.However, it is particularly advantageous if the yoke is integrally connected to the bearing cover elements in a cohesive manner. This results in a structural unit via which both the bearings of the camshafts and the injection devices are held on the cylinder head. This component can be optimized both in terms of its strength and its bending stiffness by appropriate profiling, taking into account the requirement for the structural strength, separate fastening means for the injection devices being dispensed with. The design also allows the entire component to vibrate. Reduce terg not so that the excitations on the changing camshaft forces and on the pressure pulsations of the injection devices do not lead to sound radiation.
In einer weiteren Ausgestaltung der Erfindung ist ferner vorgesehen, daß die Lagerdeckelelemente einstückig stoffschlüssig mit wenigstens einem zusätzlichen Längsholm miteinander verbunden sind. Durch die Anordnung eines durchgehenden Längsholmes, vorzugsweise werden zwei parallele Längsholme angeordnet, ergibt sich für die Festlegung der Nockenwellenlager und der Einspritzeinrichtungen ein sehr kompaktes, gitterähnliches steifes Bauteil, durch das nicht nur die Montage der Nockenwellenlager und der Einspritzeinrichtungen erleich- tert wird, sondern auch die Übertragung von Körperschall nach außen praktisch unterbunden wird.In a further embodiment of the invention it is further provided that the bearing cover elements are integrally connected to one another with at least one additional longitudinal spar. The arrangement of a continuous longitudinal spar, preferably two parallel longitudinal spars, results in a very compact, lattice-like rigid component for fixing the camshaft bearings and the injection devices, which not only facilitates the assembly of the camshaft bearings and the injection devices, but also the transmission of structure-borne noise to the outside is practically prevented.
Die Erfindung wird anhand schematischer Zeichnungen von Ausführungsbeispielen näher erläutert. Es zeigen:The invention is explained in more detail with reference to schematic drawings of exemplary embodiments. Show it:
Fig. 1 eine Aufsicht auf eine 4-Zylinder-Kolbenbrenn- kraftmaschine mit einer ersten Ausführungsform eines Jochs zur Befestigung der Einspritzeinrichtungen,1 is a plan view of a 4-cylinder piston internal combustion engine with a first embodiment of a yoke for fastening the injection devices,
Fig. 2 eine Abwandlung der Ausführungsform gem. Fig. 1,Fig. 2 shows a modification of the embodiment. Fig. 1
Fig. 3 eine Ausführungsform mit Einzeljochen zur Festlegung der Einspritzeinrichtungen,3 shows an embodiment with individual yokes for fixing the injection devices,
Fig. 4 in vergrößertem Maßstab eine Teilseitenansicht gem. Pfeil A in Fig. 1.Fig. 4 in an enlarged scale, a partial side view. Arrow A in Fig. 1.
In Fig. 1 ist in einer Aufsicht der Zylinderkopf 1 einer 4-Zylinder-Kolbenbrennkraftmaschine dargestellt. Die hier nicht näher dargestellten Gaswechselventile der einzelnen Zylinder I, II, III und IV werden gaseinlaßseitig und gasaus- laßseitig jeweils über eine obenliegende Nockenwelle 2 und 3 betätigt. Die Nockenwellen werden über jeweils endseitig und jeweils zwischen zwei benachbarten Zylindern liegende Nockenwellenlagerungen 4 am Zylinderkopf 1 gelagert, wobei der obe- re Abschluß der Nockenwellenlagerung 4 jeweils über Lagerdek- kelele ente 5 erfolgt, die beide Nockenwellenlager 4 übergreifen. Die Lagerdeckelelemente 5 sind über Befestigungsschrauben 6 mit dem Zylinderkopf 1 fest verbunden.1 shows a top view of the cylinder head 1 of a 4-cylinder piston internal combustion engine. The gas exchange valves of the individual cylinders I, II, III and IV, which are not shown in more detail here, are actuated on the inlet side via an overhead camshaft 2 and 3. The camshafts are supported on the cylinder head 1 via camshaft bearings 4 located at the ends and between two adjacent cylinders, the upper end of the camshaft bearing 4 taking place via bearing caps 5 which overlap both camshaft bearings 4. The bearing cover elements 5 are firmly connected to the cylinder head 1 via fastening screws 6.
Den einzelnen Zylindern I, II, III und IV ist jeweils eineThe individual cylinders I, II, III and IV are each one
Einspritzeinrichtung 7 zugeordnet, die in üblicher Weise ausgebildet ist und in eine Öffnung im Zylinderkopf eingesteckt ist, so daß ihr Düsenteil bis in den Innenraum des zugeordneten Zylinders hineinragt.Injection device 7 assigned, which is designed in the usual way and is inserted into an opening in the cylinder head, so that its nozzle part extends into the interior of the associated cylinder.
Zur abdichtenden Verspannung der Einspritzeinrichtungen 7 ist ein die Einspritzeinrichtungen 7 jeweils übergreifendes Joch 8 vorgesehen, das bei dem hier dargestellten Ausführungsbeispiel als mehrere Einspritzeinrichtungen 7 übergreifender Längsträger ausgebildet ist und einstückig stoffschlüssig mit den Lagerdeckelelementen 5 verbunden ist. Alle Einspritzeinrichtungen 7 sind dem durchgehenden, jeweils zwischen zwei Lagerdeckelelementen 5 als Joch 8 dienendem Längsträger überdeckt und über die Befestigungsschrauben 6 der Lagerdeckel- elemente 5 mit dem Zylinderkopf 1 verspannt.For sealing bracing of the injection devices 7, a yoke 8 is provided which extends across the injection devices 7 and which, in the exemplary embodiment shown here, is designed as a longitudinal beam spanning several injection devices 7 and is integrally connected to the bearing cover elements 5 in one piece. All the injection devices 7 are covered by the continuous side member serving as a yoke 8 between two bearing cover elements 5 and braced with the cylinder head 1 via the fastening screws 6 of the bearing cover elements 5.
Je nach den baulichen Gegebenheiten ist es auch möglich, die Anordnung zu unterteilen, so daß jeweils für einen oder für mehrere benachbarte Zylinder ein aus Lagerdeckelelementen 5 und Jochen 8 bestehende Bauelemente vorgesehen sind.Depending on the structural conditions, it is also possible to subdivide the arrangement, so that components consisting of bearing cover elements 5 and yokes 8 are provided for one or more adjacent cylinders.
Fig. 2 zeigt eine Abwandlung der Ausführungsform gem. Fig. 1. Bei dieser Ausführungsform sind die Lagerdeckelelemente 5 jeweils an ihren äußeren Endseiten mit einem durchgehenden Längsholm 9 einstückig stoffschlüssig verbunden, so daß sich ein in etwa gitterförmiges, in sich steifes Bauteil ergibt, über das die Nockenwellenlager und die Einspritzeinrichtungen am Zylinderkopf festgelegt sind.Fig. 2 shows a modification of the embodiment according. 1. In this embodiment, the bearing cover elements 5 are integrally integrally connected at their outer end sides to a continuous longitudinal spar 9, so that an approximately lattice-shaped, rigid component results. via which the camshaft bearings and the injection devices are fixed on the cylinder head.
Fig. 3 zeigt eine abgewandelte Ausführungsform. Bei dieser Ausführungsform sind die Lagerdeckelelemente 5 in üblicher Weise als Einzelelemente ausgebildet und am Zylinderkopf 1 festgelegt. Die einzelnen Einspritzeinrichtungen 7 zu den Zylindern werden über Einzeljoche 8.1 über die Befestigungsmittel 6 der Lagerdeckelelemente 5 festgelegt. Die Einzeljoche 8.1 sind hierbei quer und unter einem Winkel zur Ausrichtung der Nockenwellen 2, 3 angeordnet. Auch hier sind die Joche 8.1 über eine entsprechende Formgebung biegesteif ausgebildet und es ist der Vorteil gegeben, daß jeweils das Einzeljoch 8.1 über die ohnehin vorhandene Befestigung der Lagerdeckel- elemente 5 am Zylinderkopf 1 festgelegt ist. Auch diese Ausführungsform kann so ausgebildet werden, daß die Joche 8.1 Stoffschlüssig mit den Lagerdeckelelementen 5 verbunden sind und somit eine Baueinheit entsprechend Fig. 1 oder Fig. 2 zur Verfügung steht.Fig. 3 shows a modified embodiment. In this embodiment, the bearing cover elements 5 are designed in the usual way as individual elements and fixed on the cylinder head 1. The individual injection devices 7 for the cylinders are fixed via individual yokes 8.1 via the fastening means 6 of the bearing cover elements 5. The individual yokes 8.1 are arranged transversely and at an angle to the alignment of the camshafts 2, 3. Here, too, the yokes 8.1 are designed to be resistant to bending by means of a corresponding shaping, and there is the advantage that the individual yoke 8.1 is fixed in each case via the already existing fastening of the bearing cover elements 5 on the cylinder head 1. This embodiment can also be designed such that the yokes 8.1 are integrally connected to the bearing cover elements 5 and thus a structural unit corresponding to FIG. 1 or FIG. 2 is available.
Fig. 4 zeigt in einer vergrößerten Teilseitenansicht in Richtung des Pfeiles A in Fig. 1 die Anordnung eines derartigen Bauteils.FIG. 4 shows the arrangement of such a component in an enlarged partial side view in the direction of arrow A in FIG. 1.
Am Zylinderkopf 1 im Bereich beispielsweise des Zylinders I sind zur Aufnahme der Kurbelwellenlager Lagerböcke 10 angeordnet, die auf ihrer Oberseite durch Lagerdeckelelemente 5 jeweils abgeschlossen sind. Die Lagerdeckelelemente 5 sind entsprechend der Darstellung in Fig. 1 über einen durchgehen- den Längsträger miteinander verbunden, der zwischen jeweils zwei Lagerdeckelelementen 5.1 und 5.2 ein Joch 8 bildet, das die zugeordnete Einspritzeinrichtung 7 übergreift. Zwischen dem Joch 8 und der Einspritzeinrichtung sind Spannmittel 11 vorgesehen, die nach der Festlegung eine gezielte Verspannung der Einspritzeinrichtung 7 jeweils mit der erforderlichen Anpreßkraft ermöglicht. In der einfachsten Ausführungsform können die Spannmittel 11 durch ein Tellerfederpaket oder dergl. gebildet werden, das auf die Einspritzeinrichtung 7 aufgesetzt wird und beim Ver- schrauben der Lagerdeckelelemente gleichzeitig die erforder- liehe abdichtende Verspannung zwischen Einspritzeinrichtung 7, Joch 8 und Zylinderkopf 1 bewirkt.On the cylinder head 1 in the area, for example, of the cylinder I, bearing blocks 10 are arranged for receiving the crankshaft bearings, each of which is closed on its upper side by bearing cover elements 5. As shown in FIG. 1, the bearing cover elements 5 are connected to one another via a continuous longitudinal beam which forms a yoke 8 between two bearing cover elements 5.1 and 5.2, respectively, which overlaps the associated injection device 7. Between the yoke 8 and the injection device, tensioning means 11 are provided which, after the fixing, enables the injection device 7 to be braced in a targeted manner with the required contact pressure. In the simplest embodiment, the tensioning means 11 can be formed by a plate spring assembly or the like, which is placed on the injection device 7 and, when the bearing cover elements are screwed together, simultaneously brings about the required sealing bracing between the injection device 7, yoke 8 and cylinder head 1.
Es ist aber auch möglich, hier über ggf. mit Federn kombinierte Spannmittel zu schaffen, die im wesentlichen als Schrauben-Mutter-Kombination ausgebildet sind und die nach dem Montieren des Längsträgers eine gesonderte Verspannung der einzelnen Einspritzeinrichtungen ermöglichen. Für die Einspritzeinrichtungen ist zweckmäßig ferner eine Verdrehsicherung vorzusehen, die entweder über entsprechende konstruk- tive Maßnahmen im Übergangsbereich zwischen Zylinderkopf und Einspritzeinrichtung vorgesehen sind oder aber die der Verbindung zwischen Joch und Einspritzeinrichtung zugeordnet sind. However, it is also possible here to create tensioning means, possibly combined with springs, which are essentially designed as a screw-nut combination and which, after the longitudinal member has been mounted, enable the individual injection devices to be braced separately. It is also expedient to provide an anti-rotation device for the injection devices, which are either provided for by corresponding constructive measures in the transition area between the cylinder head and the injection device or which are assigned to the connection between the yoke and the injection device.

Claims

Ansprüche Expectations
1. Kolbenbrennkraftmaschine mit obenliegenden Nockenwellen (2, 3) zur Betätigung der Gaswechselventile, wobei jeweils nebeneinander liegende Lager der einlaßseitigen Nockenwelle (2) und der auslaßseitigen Nockenwelle (3) eine beide Lager abschließendes Lagerdeckelelement (5) aufweisen, und mit direkter Kraftstoffeinspritzung durch jeweils eine einem Zylinder (I, II, III, IV) zugeordnete Einspritzeinrichtung (7) mit Düsenteil, das abgedichtet in einer Öffnung im Zylinderkopf1. Piston-type internal combustion engine with overhead camshafts (2, 3) for actuating the gas exchange valves, the adjacent bearings of the intake-side camshaft (2) and the exhaust-side camshaft (3) having a bearing cover element (5) that closes both bearings, and with direct fuel injection by in each case an injector (7) associated with a cylinder (I, II, III, IV) with a nozzle part, which is sealed in an opening in the cylinder head
(1) eingesteckt ist, und mit einem am Zylinderkopf (1) biegesteif befestigten, wenigstens eine Einspritzeinrichtung (7) übergreifenden Joch (8), das mit Spannmitteln (11) in Verbindung steht, durch die die Einspritzeinrichtungen (7) gegen- über dem Joch (8) abdichtend verspannt sind, und wobei das(1) is inserted, and with a yoke (8) which is rigidly attached to the cylinder head (1) and at least one injection device (7) and which is connected to clamping means (11) through which the injection devices (7) oppose the Yoke (8) are tightly clamped, and wherein
Joch (8) mit wenigstens zwei benachbarten Lagerdeckelelementen (5) verbunden ist.Yoke (8) is connected to at least two adjacent bearing cover elements (5).
2. Kolbenbrennkraf maschine nach Anspruch 1, dadurch gekenn- zeichnet, daß ein das Joch (8) bildender, mehrere Einspritzeinrichtungen (7) übergreifender Längsträger vorgesehen ist, der über jeweils zwei einer Einspritzeinrichtung (7) benachbarte Befestigungsschrauben (6) der Lagerdeckelelemente (5) am Zylinderkopf (1) befestigt ist.2. Piston internal combustion engine according to claim 1, characterized in that a yoke (8) forming, a plurality of injection devices (7) overlapping longitudinal member is provided, each of two an injection device (7) adjacent fastening screws (6) of the bearing cover elements (5th ) is attached to the cylinder head (1).
3. Kolbenbrennkraftmaschine nach Anspruch 1 oder 2 , dadurch gekennzeichnet, daß das Joch (8) quer zur Ausrichtung der Nockenwellen (2, 3) verläuft und jeweils über die Befestigungsschrauben (6) der Lagerdeckelelemente (5) festgelegt ist.3. Piston internal combustion engine according to claim 1 or 2, characterized in that the yoke (8) extends transversely to the alignment of the camshafts (2, 3) and is fixed in each case via the fastening screws (6) of the bearing cover elements (5).
4. Kolbenbrennkraftmaschine nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß das Joch (8) einstückig stoff- schlüssig mit den Lagerdeckelelementen (5) verbunden ist.4. Piston internal combustion engine according to one of claims 1 to 3, characterized in that the yoke (8) is integrally connected to the bearing cap elements (5).
5. Kolbenbrennkraftmaschine nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die Lagerdeckelelemente (5) ein- stückig stoffschlüssig mit wenigstens einem zusätzlichen Längsholm (9) miteinander verbunden sind. 5. Piston internal combustion engine according to one of claims 1 to 4, characterized in that the bearing cover elements (5) one are integrally connected with one another with at least one additional longitudinal spar (9).
EP01943374A 2000-06-30 2001-05-16 Piston internal combustion engine comprising a deflection-resistant cross brace for sealingly fixing fuel injection devices Expired - Lifetime EP1295027B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10032003A DE10032003A1 (en) 2000-06-30 2000-06-30 Piston-type internal combustion engine with a rigid yoke for the sealing fastening of fuel injection devices
DE10032003 2000-06-30
PCT/EP2001/005538 WO2002002927A1 (en) 2000-06-30 2001-05-16 Piston internal combustion engine comprising a deflection-resistant cross brace for sealingly fixing fuel injection devices

Publications (2)

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EP1295027A1 true EP1295027A1 (en) 2003-03-26
EP1295027B1 EP1295027B1 (en) 2008-10-15

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US (1) US6698400B2 (en)
EP (1) EP1295027B1 (en)
JP (1) JP2004502086A (en)
AT (1) ATE411463T1 (en)
DE (2) DE10032003A1 (en)
WO (1) WO2002002927A1 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1529955A1 (en) * 2003-11-06 2005-05-11 Renault s.a.s. Fuel injector clamping means
DE102005033139A1 (en) * 2005-07-15 2007-01-25 Robert Bosch Gmbh Hold-down device
US8066378B2 (en) * 2006-10-06 2011-11-29 Marc Lalley Three-dimensional internal back-projection system and method for using the same
KR100862418B1 (en) * 2006-12-15 2008-10-08 현대자동차주식회사 Injector clamp for vehicle
EP1967728B1 (en) * 2007-03-08 2009-10-14 Continental Automotive GmbH Coupling device and fuel supply arrangement
US7406946B1 (en) 2007-04-02 2008-08-05 Hitachi, Ltd. Method and apparatus for attenuating fuel pump noise in a direct injection internal combustion chamber
US7527038B2 (en) 2007-04-02 2009-05-05 Hitachi, Ltd Method and apparatus for attenuating fuel pump noise in a direct injection internal combustion chamber
DE102008025744B4 (en) * 2008-05-29 2015-12-17 Volkswagen Ag Internal combustion engine with clamping claw for fuel injection valves
JP2013155647A (en) * 2012-01-27 2013-08-15 Suzuki Motor Corp Cam housing structure for three-dimensional cam
DE102015224440A1 (en) * 2015-12-07 2017-06-08 Mahle International Gmbh Cylinder head cover

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5288886A (en) 1976-01-20 1977-07-25 Feather Ind Ltd Scissors in which cutting edge plate is displaceable to angle needed for cutting
AT350854B (en) * 1976-08-26 1979-06-25 List Hans DEVICE FOR FASTENING A FUEL INJECTION NOZZLE RECEIVED IN A BORE OF A CYLINDER HEAD OF A COMBUSTION MACHINE
JPS5637417A (en) * 1979-08-31 1981-04-11 Sanyo Electric Co Ltd Controller of combustion machine
IN159427B (en) * 1982-11-27 1987-05-16 Perkins Engines Group
DE3940845C1 (en) * 1989-12-11 1990-08-09 Dr.Ing.H.C. F. Porsche Ag, 7000 Stuttgart, De
JPH08254167A (en) * 1995-03-17 1996-10-01 Isuzu Motors Ltd Mounting structure of injector
JP2937081B2 (en) * 1995-06-26 1999-08-23 いすゞ自動車株式会社 Fuel injection nozzle tightening device
DE19605934C1 (en) * 1996-02-17 1997-06-12 Audi Ag Cylinder head for IC engine with direct fuel injection
JP3765132B2 (en) * 1996-09-06 2006-04-12 日産自動車株式会社 Fuel injection nozzle fixing device in direct injection diesel engine
JP2877117B2 (en) * 1996-12-13 1999-03-31 いすゞ自動車株式会社 Direct injection multi-cylinder engine
FR2763649B1 (en) * 1997-05-20 1999-06-25 Peugeot DEVICE FOR FIXING A FUEL INJECTOR ON A CYLINDER HEAD OF AN INTERNAL COMBUSTION ENGINE, AND A METHOD FOR MOUNTING THIS INJECTOR
JP2000145580A (en) * 1998-11-11 2000-05-26 Isuzu Motors Ltd Fixing structure of injector

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO0202927A1 *

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DE50114423D1 (en) 2008-11-27
JP2004502086A (en) 2004-01-22
WO2002002927A1 (en) 2002-01-10
US20020152994A1 (en) 2002-10-24
ATE411463T1 (en) 2008-10-15
US6698400B2 (en) 2004-03-02
EP1295027B1 (en) 2008-10-15
DE10032003A1 (en) 2002-01-10

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