DE102010061240B4 - cylinder head - Google Patents
cylinder head Download PDFInfo
- Publication number
- DE102010061240B4 DE102010061240B4 DE102010061240.5A DE102010061240A DE102010061240B4 DE 102010061240 B4 DE102010061240 B4 DE 102010061240B4 DE 102010061240 A DE102010061240 A DE 102010061240A DE 102010061240 B4 DE102010061240 B4 DE 102010061240B4
- Authority
- DE
- Germany
- Prior art keywords
- cylinder head
- head cover
- actuators
- combustion engine
- internal combustion
- 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.)
- Active
Links
- 238000002485 combustion reaction Methods 0.000 claims abstract description 16
- 230000004308 accommodation Effects 0.000 claims abstract description 7
- 238000005058 metal casting Methods 0.000 claims description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000002826 coolant Substances 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 239000000314 lubricant Substances 0.000 description 2
- 230000003213 activating effect Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000003351 stiffener Substances 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L13/00—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
- F01L13/0015—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque
- F01L13/0036—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque the valves being driven by two or more cams with different shape, size or timing or a single cam profiled in axial and radial direction
-
- 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
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/02—Valve drive
- F01L1/04—Valve drive by means of cams, camshafts, cam discs, eccentrics or the like
- F01L1/047—Camshafts
- F01L1/053—Camshafts overhead type
- F01L2001/0537—Double overhead camshafts [DOHC]
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L13/00—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
- F01L13/0015—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque
- F01L13/0036—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque the valves being driven by two or more cams with different shape, size or timing or a single cam profiled in axial and radial direction
- F01L2013/0052—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque the valves being driven by two or more cams with different shape, size or timing or a single cam profiled in axial and radial direction with cams provided on an axially slidable sleeve
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L2301/00—Using particular materials
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L2303/00—Manufacturing of components used in valve arrangements
Abstract
Zylinderkopf (1) einer Brennkraftmaschine mit Aufnahmeräumen (3) zur Aufnahme von Funktionsbauteilen aufweisenden Zylinderkopfdeckel (2), wobei an dem Zylinderkopfdeckel (2) Doppelrippen (5) zur Aussteifung des Zylinderkopfdeckels (2) und der Aufnahmeräume (3) vorgesehen sind, die sich zumindest zwischen den einzelnen Aufnahmeräumen (3) und von diesen zum jeweils benachbarten Flansch (6) erstrecken, dadurch gekennzeichnet, dass die Funktionsbauteile Aktuatoren (4) zum Verstellen eines Ventilhubs eines Nockenpakets an einer Nockenwelle sind und dass die Aufnahmeräume (3) domartig, das heißt nach oben geschlossen ausgebildet sind, wobei sich die Aktuatoren (4) an den versteiften Aufnahmeräumen (3) und damit an dem versteiften Zylinderkopfdeckel (2) ohne Verformung abstützen.Cylinder head (1) of an internal combustion engine with accommodation spaces (3) for accommodating cylinder head covers (2) having functional components, double ribs (5) being provided on the cylinder head cover (2) to reinforce the cylinder head cover (2) and the accommodation spaces (3), which at least between the individual receiving spaces (3) and from these to the respective adjacent flange (6), characterized in that the functional components are actuators (4) for adjusting a valve lift of a cam assembly on a camshaft and in that the receiving spaces (3) are dome-like, that means that they are closed at the top, with the actuators (4) being supported on the stiffened receiving spaces (3) and thus on the stiffened cylinder head cover (2) without deformation.
Description
Die vorliegende Erfindung betrifft einen Zylinderkopf einer Brennkraftmaschine mit Aufnahmeräumen zur Aufnahme von Funktionsbauteilen aufweisenden Zylinderkopfdeckel gemäß dem Oberbegriff des Anspruchs 1.The present invention relates to a cylinder head of an internal combustion engine with cylinder head cover having receiving spaces for receiving functional components according to the preamble of
Aus der
Aus der
Aus der
Moderne Kraftfahrzeugmotoren besitzen oftmals verstellbare Nockenwellen, bei welchen beispielsweise Nockenpakete mittels Eintauchen von so genannten Steuerstiften in Kulissenbahnen verschoben werden. Hierdurch entstehen jedoch an den Steuerstiften und verbunden damit an den diese aktivierenden Aktuatoren hohe Kräfte, die von einem Zylinderkopfdeckel aufgenommen werden müssen, an welchem sich die Aktuatoren abstützen.Modern motor vehicle engines often have adjustable camshafts, in which, for example, cam sets are shifted by so-called control pins being inserted into link tracks. However, this results in high forces on the control pins and, connected therewith, on the actuators activating them, which have to be absorbed by a cylinder head cover on which the actuators are supported.
Aus der
Aus der
Die vorliegende Erfindung beschäftigt sich daher mit dem Problem, für einen Zylinderkopf der gattungsgemäßen Art eine verbesserte oder zumindest eine alternative Ausführungsform anzugeben, die sich insbesondere durch eine hohe Schaltpräzision und ein gleichzeitig geringes Gewicht auszeichnet.The present invention is therefore concerned with the problem of specifying an improved or at least an alternative embodiment for a cylinder head of the generic type, which is characterized in particular by high switching precision and, at the same time, low weight.
Dieses Problem wird erfindungsgemäß durch die Gegenstände der unabhängigen Ansprüche gelöst. Vorteilhafte Ausführungsformen sind Gegenstand der abhängigen Ansprüche.According to the invention, this problem is solved by the subject matter of the independent claims. Advantageous embodiments are the subject matter of the dependent claims.
Die vorliegende Erfindung beruht auf dem allgemeinen Gedanken, an einem Zylinderkopfdeckel eines Zylinderkopfes einer Brennkraftmaschine Doppelrippen zur Aussteifung des Zylinderkopfdeckels und zur Aussteifung von Aufnahmeräumen vorzusehen, wobei die Aufnahmeräume zur Aufnahme von Funktionsbauteilen, insbesondere zur Aufnahme von Aktuatoren zum Verstellen eines Ventilhubs eines Nockenpakets an einer Nockenwelle ausgebildet sind. Die erfindungsgemäß vorgesehenen Doppelrippen erstrecken sich dabei zumindest zwischen den einzelnen Aufnahmeräumen, das heißt vorzugsweise in Längsrichtung des Zylinderkopfdeckels und von den einzelnen Aufnahmeräumen zum jeweils benachbarten randseitigen Flansch. Weiter ist vorgesehen, dass die Aufnahmeräume domartig, das heißt nach oben geschlossen ausgebildet sind, so dass die Aktuatoren von unten eingesteckt und anschließend der Zylinderkopfdeckel auf den Zylinderkopf aufgesetzt und montiert wird. Durch derart ausgebildete Aussteifungsrippen in der Art von Doppelrippen, kann eine hohe Steifigkeit der Aufnahmeräume bei gleichzeitig minimaler Gewichtserhöhung des Zylinderkopfdeckels erreicht werden. Die Doppelrippen verhindern zudem eine unerwünschte Verformung des Zylinderkopfdeckels, hervorgerufen durch verschiedene Kräfte an den Aktuatoren, und erlaubt hierdurch eine besonders hohe Schaltpräzision, da sich die Aktuatoren an den versteiften Aufnahmeräumen und damit an dem versteiften Zylinderkopfdeckel ohne Verformung abstützen können. Gleichzeitig wird auch eine Dauerrissbildung am Zylinderkopfdeckel verhindert, zumindest aber reduziert. Nebenbei bewirkt die erfindungsgemäße Verrippung mit den Doppelrippen auch eine geringere Schallemission, wodurch der Betrieb der Brennkraftmaschine insgesamt ruhiger gestaltet werden kann.The present invention is based on the general idea of providing double ribs on a cylinder head cover of a cylinder head of an internal combustion engine to reinforce the cylinder head cover and to reinforce accommodation spaces, the accommodation spaces for accommodating functional components, in particular for accommodating actuators for adjusting a valve lift of a cam pack on a camshaft are trained. The double ribs provided according to the invention extend at least between the individual receiving spaces, that is to say preferably in the longitudinal direction of the cylinder head cover and from the individual receiving spaces to the respectively adjacent peripheral flange. It is further provided that the receiving spaces are designed in the manner of a dome, that is to say closed at the top, so that the actuators are inserted from below and the cylinder head cover is then placed and mounted on the cylinder head. By trained in this way Reinforcement ribs in the manner of double ribs, a high rigidity of the receiving spaces can be achieved with at the same time a minimal increase in weight of the cylinder head cover. The double ribs also prevent undesired deformation of the cylinder head cover caused by various forces on the actuators, and this allows particularly high shifting precision, since the actuators can be supported on the stiffened receiving spaces and thus on the stiffened cylinder head cover without deformation. At the same time, the formation of permanent cracks on the cylinder head cover is prevented, or at least reduced. In addition, the ribbing according to the invention with the double ribs also causes lower noise emissions, as a result of which the operation of the internal combustion engine can be designed to be quieter overall.
Bei einer vorteilhaften Weiterbildung der erfindungsgemäßen Lösung, sind die Aufnahmeräume offen so dass durch diese von außen die Aktuatoren einsteckbar sind. Dabei weisen die Aktuatoren eine Kragenlasche auf, mittels der sie in eingebautem Zustand an einem Rand der jeweils zugehörigen Aufnahmeöffnung anliegen. Hierdurch erleichtert sich ein Zusammenbau des Zylinderkopfes erheblich, da die Aktuatoren auch nach dem Montieren des Zylinderkopfdeckels von außen in die zugehörigen Aufnahmeräume eingesteckt und anschließend festgeschraubt werden können. Zum Festschrauben der Aktuatoren am Zylinderkopfdeckel, besitzt die Kragenlasche zumindest eine Durchgangsöffnung, die mit einer zugehörigen Schrauböffnung im Zylinderkopf fluchtet. Selbstverständlich sind generell auch domartig, das heißt geschlossen ausgebildete Aufnahmeräume denkbar, in welche die jeweiligen Aktuatoren zunächst von innen eingesteckt und anschließend der Zylinderkopfdeckel auf dem Zylinderkopf montiert wird.In an advantageous development of the solution according to the invention, the receiving spaces are open so that the actuators can be inserted through them from the outside. In this case, the actuators have a collar tab, by means of which they rest against an edge of the associated receiving opening in the installed state. This makes assembly of the cylinder head much easier, since the actuators can also be inserted from the outside into the associated receiving spaces after the cylinder head cover has been installed and can then be screwed tight. For screwing the actuators to the cylinder head cover, the collar strap has at least one through-opening which is aligned with an associated screw opening in the cylinder head. Of course, generally also dome-like, ie, closed receiving spaces are conceivable, into which the respective actuators are first inserted from the inside and then the cylinder head cover is mounted on the cylinder head.
Weitere wichtige Merkmale und Vorteile der Erfindung ergeben sich aus den Unteransprüchen, aus den Zeichnungen und aus der zugehörigen Figurenbeschreibung anhand der Zeichnungen.Further important features and advantages of the invention result from the dependent claims, from the drawings and from the associated description of the figures with reference to the drawings.
Es versteht sich, dass die vorstehend genannten und die nachstehend noch zu erläuternden Merkmale nicht nur in der jeweils angegebenen Kombination, sondern auch in anderen Kombinationen oder in Alleinstellung verwendbar sind, ohne den Rahmen der vorliegenden Erfindung zu verlassen.It goes without saying that the features mentioned above and those still to be explained below can be used not only in the combination specified in each case, but also in other combinations or on their own, without departing from the scope of the present invention.
Bevorzugte Ausführungsbeispiele der Erfindung sind in den Zeichnungen dargestellt und werden in der nachfolgenden Beschreibung näher erläutert, wobei sich gleiche Bezugszeichen auf gleiche oder ähnliche oder funktional gleiche Bauteile beziehen.Preferred exemplary embodiments of the invention are illustrated in the drawings and are explained in more detail in the following description, with the same reference numbers referring to identical or similar or functionally identical components.
Dabei zeigen, jeweils schematisch
-
1 einen erfindungsgemäßen Zylinderkopfdeckel, -
2 einen auf einen Zylinderkopf aufgesetzten erfindungsgemäßen Zylinderkopfdeckel mit in der linken Bildhälfte eingebauten Aktuatoren und mit in der rechten Bildhälfte in Explosionsdarstellung, das heißt aus ihrem jeweiligen Aufnahmeraum heraus gelösten Aktuatoren.
-
1 a cylinder head cover according to the invention, -
2 a cylinder head cover according to the invention placed on a cylinder head with actuators installed in the left half of the figure and with the right half of the figure in an exploded view, ie actuators released from their respective receiving space.
Entsprechend der
Generell kann der Zylinderkopfdeckel 2 als Leichtmetallgussteil, beispielsweise aus Aluminiumguss, ausgebildet sein oder aber aus Kunststoff. Wie insbesondere der
Bei dem erfindungsgemäßen Zylinderkopfdeckel 2 und dem erfindungsgemäßen Zylinderkopf 1 lässt sich durch die Aussteifung mittels der erfindungsgemäßen Doppelrippen 5 eine hohe Schaltpräzision erreichen, da der Zylinderkopfdeckel 2 nicht wie bisher bei aktivierten Aktuatoren 4 ausweichen kann. Die Aussteifung mittels der Doppelrippen 5 ist dabei mit lediglich geringem zusätzlichem Gewicht erreichbar.In the case of the
Claims (4)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102010061240.5A DE102010061240B4 (en) | 2010-12-15 | 2010-12-15 | cylinder head |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102010061240.5A DE102010061240B4 (en) | 2010-12-15 | 2010-12-15 | cylinder head |
Publications (2)
Publication Number | Publication Date |
---|---|
DE102010061240A1 DE102010061240A1 (en) | 2012-06-21 |
DE102010061240B4 true DE102010061240B4 (en) | 2023-03-30 |
Family
ID=46512238
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102010061240.5A Active DE102010061240B4 (en) | 2010-12-15 | 2010-12-15 | cylinder head |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE102010061240B4 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105257423B (en) * | 2015-11-13 | 2017-08-25 | 广西玉柴机器股份有限公司 | Cylinder head |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19548088C1 (en) | 1995-12-21 | 1997-07-17 | Daimler Benz Ag | Cylinder head for an internal combustion engine |
DE10328495A1 (en) | 2002-08-29 | 2004-03-11 | Hesse Stanzwerkzeuge Gmbh | Manufacture of cutouts used in construction of packaging involves gripper with tongues pulling on edge of workpiece and separating tool cutting workpiece |
DE102005003079A1 (en) | 2005-01-22 | 2006-08-03 | Audi Ag | Internal combustion engine has housing at which for each actuator, one mounting surface is arranged such that in each mounting surface, lubricant bore is arranged |
DE19833199B4 (en) | 1998-07-23 | 2006-09-28 | Audi Ag | Cylinder head cover of an internal combustion engine |
DE102009056048A1 (en) | 2008-12-16 | 2010-07-08 | Ford Global Technologies, LLC, Dearborn | Structural oil baffle for engine cover |
-
2010
- 2010-12-15 DE DE102010061240.5A patent/DE102010061240B4/en active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19548088C1 (en) | 1995-12-21 | 1997-07-17 | Daimler Benz Ag | Cylinder head for an internal combustion engine |
DE19833199B4 (en) | 1998-07-23 | 2006-09-28 | Audi Ag | Cylinder head cover of an internal combustion engine |
DE10328495A1 (en) | 2002-08-29 | 2004-03-11 | Hesse Stanzwerkzeuge Gmbh | Manufacture of cutouts used in construction of packaging involves gripper with tongues pulling on edge of workpiece and separating tool cutting workpiece |
DE102005003079A1 (en) | 2005-01-22 | 2006-08-03 | Audi Ag | Internal combustion engine has housing at which for each actuator, one mounting surface is arranged such that in each mounting surface, lubricant bore is arranged |
DE102009056048A1 (en) | 2008-12-16 | 2010-07-08 | Ford Global Technologies, LLC, Dearborn | Structural oil baffle for engine cover |
Also Published As
Publication number | Publication date |
---|---|
DE102010061240A1 (en) | 2012-06-21 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP1775455B1 (en) | Autoignition engine with combustion chambers for high pressure ignition | |
DE102008007561B4 (en) | Camshaft actuator with a Mitnehmerflansch with which at least one accessory of an internal combustion engine is driven in rotation | |
DE102005028757A1 (en) | Control valve for a device for the variable adjustment of the timing of gas exchange valves of an internal combustion engine | |
DE102006022402A1 (en) | Control valve for a camshaft adjuster | |
EP2676009B1 (en) | Activation module for at least one gas exchange valve of an internal combustion engine | |
DE102010012479A1 (en) | Control valve of a device for changing the relative angular position of a camshaft relative to a crankshaft of an internal combustion engine | |
DE102012109689A1 (en) | Valve train arrangement for actuating gas exchange valves of an internal combustion engine | |
WO2012038033A1 (en) | Coolant jacket for a liquid-cooled cylinder head | |
DE102009009252A1 (en) | Hydraulic camshaft amplifier with axial screw plug | |
DE102011003991A1 (en) | Camshaft adjuster with a pressure accumulator | |
EP2587036B1 (en) | Combustion engine | |
DE102017112574B3 (en) | Hydraulic support element with a ring filter | |
DE102010061240B4 (en) | cylinder head | |
DE102007042046A1 (en) | Drive motor, has camshaft adjuster with electromagnetic hydraulic valve, and housing with form fit engaging region and thread for screwing valve with solid casting or forging housing part of motor | |
DE19833199B4 (en) | Cylinder head cover of an internal combustion engine | |
DE102012206500A1 (en) | Internal combustion engine | |
EP2627884B1 (en) | Combustion engine and a method for producing such a combustion engine | |
DE102008011116A1 (en) | Camshaft adjuster i.e. blade cell adjuster, for internal-combustion engine of motor vehicle, has set of casings arranged in such manner that three separate axial pressure medium lines are formed | |
DE102009051309B4 (en) | Device for the variable setting of the control times of gas exchange valves of an internal combustion engine | |
DE102008050622A1 (en) | Device for variably adjusting control time of inlet and outlet gas cycle valves of internal-combustion engine, has separation section separating chambers from one another, where extension of section deviates from extension of opening | |
DE102011012149A1 (en) | Cylinder head for internal combustion engine of motor vehicle, has camshaft bearing frame that is arranged on cylinder head housing, where camshaft bearing frame is fixed with central bearing points on cylinder head housing by screws | |
EP3267012B1 (en) | Check valve for a connecting rod for a combustion engine with variable compression | |
EP1942264B1 (en) | Cylinder head for internal combustion engine and method to manufacture such cylinder head | |
DE102011000522A1 (en) | Swivel motor adjuster for combustion engine, has sleeve arranged inside valve housing and displaced against spring force of spring relative to inner part that is rigidly supported at valve housing | |
DE102020112667B3 (en) | Machine part structure for an internal combustion engine of a motor vehicle |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
R163 | Identified publications notified | ||
R012 | Request for examination validly filed | ||
R016 | Response to examination communication | ||
R016 | Response to examination communication | ||
R018 | Grant decision by examination section/examining division | ||
R020 | Patent grant now final |