EP1666714B1 - Combustion engine block - Google Patents
Combustion engine block Download PDFInfo
- Publication number
- EP1666714B1 EP1666714B1 EP20050019395 EP05019395A EP1666714B1 EP 1666714 B1 EP1666714 B1 EP 1666714B1 EP 20050019395 EP20050019395 EP 20050019395 EP 05019395 A EP05019395 A EP 05019395A EP 1666714 B1 EP1666714 B1 EP 1666714B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- lubricant
- shaft
- engine housing
- camshaft
- bearing
- 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 title claims description 10
- 239000000314 lubricant Substances 0.000 claims description 24
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000007921 spray Substances 0.000 description 3
- 239000000446 fuel Substances 0.000 description 2
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- F01L13/0021—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 by modification of rocker arm ratio
- F01L13/0026—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 by modification of rocker arm ratio by means of an eccentric
-
- 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
- F01L13/0063—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 by modification of cam contact point by displacing an intermediate lever or wedge-shaped intermediate element, e.g. Tourtelot
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M9/00—Lubrication means having pertinent characteristics not provided for in, or of interest apart from, groups F01M1/00 - F01M7/00
- F01M9/10—Lubrication of valve gear or auxiliaries
Definitions
- the invention relates to a machine housing, in particular a cylinder head for an internal combustion engine, with the features of the preamble of patent claim 1.
- This device for variable actuation of a lift valve of an internal combustion engine is described.
- This device is arranged in a machine housing, and consists in addition to other components at least a camshaft and a camshaft arranged in parallel to another shaft, an eccentric shaft for lifting height adjustment of the lift valve.
- the camshaft and the eccentric shaft are each rotatably mounted in the machine housing.
- a drag lever which is provided for actuating a lift valve, is mounted on the one hand on a hydraulic base, a hydraulic clearance compensation element and on the other hand on the valve stem of a lift valve.
- the hydraulic base is supplied by a pressurized lubricant as well as the bearings of the camshaft and eccentric shaft.
- Object of the present invention is to show a simplified lubricant supply for the bearings of a generic machine housing.
- the machine housing has a wall that emerges in the installed position of the machine housing from a bearing and / or spilled lubricant in the machine housing, wherein another bearing is at least partially disposed in the collected lubricant.
- the manufacturing costs for a generic machine housing are reduced because the processing of lubricant holes or the use of additional lubricant spray nozzles deleted.
- the machine housing according to the invention has a reduced lubricant delivery requirement, whereby a smaller lubricant pump can be used. This also leads to lower production costs, and to a reduced fuel consumption of the internal combustion engine.
- the embodiment of the invention is suitable in particular for largely parallel to the camshaft arranged waves according to claim 2.
- the water emerging from the bearing of the camshaft lubricant can be collected in the geodetically lower trough.
- a part of the lubricant splashed during operation of the internal combustion engine, for example, by the cam of the camshaft in the trough is collected.
- the proposed embodiment is particularly suitable for variable stroke valve trains with a stroke height adjustment by an eccentric shaft.
- Fig. 1 shows the top view of a three-dimensionally illustrated engine housing 1 with a camshaft 2, in the present case, a cylinder head for an internal combustion engine.
- the view is on a dividing plane 1 'of an in Fig. 2 recognizable bearing 3 another shaft 4 directed.
- the further shaft 4 has on its outer circumference a gear segment 4 'with an outer toothing 4 ".
- This gear segment 4' serves to rotate the further shaft 4 during operation of the internal combustion engine, in the present embodiment an eccentric shaft, by means of a worm wheel (not shown) 4 'is arranged in sections in a geodetically deeper depression 6 and protrudes into a lubricant collected in the depression 6.
- the depression 6 is formed by three outer walls 1 "of the machine housing 1 and a wall 5 which according to the invention is oriented largely vertically in the installed position in the embodiment between two outer walls 1 "extends, represented by a double arrow ..
- a part of the bearing 3 is arranged in the collected in the trough 6 lubricant.
- the depression 6 in the present embodiment is filled up with lubricant sprayed by the valve drive and lubricant injection nozzles.
- a further bearing can be arranged geodetically above the trough 6, in which case the trough 6 is additionally filled with lubricating lubricant exiting from this bearing and, depending on the structural design.
- the further shaft 4 as already briefly noted above, an eccentric shaft for a variable-stroke valve drive, wherein the further shaft 4 is arranged parallel to the camshaft 2.
- the wall 5 may also be cup-shaped, free-standing formed on a bottom surface of the machine housing 1, without having a direct contact with the side walls 1 '.
- the trough 6 is formed only by the wall 5 and the bottom surface of the machine housing.
- Fig. 2 shows the same structure of Fig. 1 , but without camshaft 2 and without further shaft 4.
- the same reference numbers apply to the same components.
- the manufacturing or manufacturing costs for a generic machine housing are reduced, since no lubricant bores or separate lubricant spray nozzles are necessary for the bearing 3 and / or the external teeth 4 "
- the energy requirement of a smaller lubricant pump is lower, which reduces fuel consumption is reduced during operation of the internal combustion engine.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Valve-Gear Or Valve Arrangements (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Description
Die Erfindung betrifft ein Maschinengehäuse, insbesondere einen Zylinderkopf für eine Brennkraftmaschine, mit den Merkmalen aus dem Oberbegriff des Patentanspruchs 1.The invention relates to a machine housing, in particular a cylinder head for an internal combustion engine, with the features of the preamble of patent claim 1.
Sie geht von der
Nachteilig bei der beschriebenen Ausgestaltung ist der hohe bauliche Aufwand, um alle Lagerstellen mit Schmiermittel zu versorgen. Wie dem Fachmann allgemein geläufig ist, erfolgt dies normalerweise über Schmiermittelspritzdüsen oder durch Schmiermittelbohrungen, die in den Lagerstellen enden.A disadvantage of the described embodiment, the high structural complexity to supply all bearings with lubricant. As is well known to those skilled in the art, this is normally done via lubricant spray nozzles or through lubricant bores terminating in the bearings.
Das Dokument
Aufgabe der vorliegenden Erfindung ist es, eine vereinfachte Schmiermittelversorgung für die Lagerstellen eines gattungsgemäßen Maschinengehäuses aufzuzeigen.Object of the present invention is to show a simplified lubricant supply for the bearings of a generic machine housing.
Diese Aufgabe wird erfindungsgemäß dadurch gelöst, dass das Maschinengehäuse eine Wandung aufweist, die in Einbaulage des Maschinengehäuses aus einem Lager ausgetretenes und/oder in dem Maschinengehäuse verspritztes Schmiermittel auffängt, wobei ein weiteres Lager zumindest abschnittsweise in dem aufgefangenen Schmiermittel angeordnet ist. Durch die vorgeschlagene Ausgestaltung werden die Fertigungskosten für ein gattungsgemäßes Maschinengehäuse reduziert, da die Bearbeitung von Schmiermittelbohrungen oder die Verwendung von zusätzlichen Schmiermittelspritzdüsen entfällt. Ferner weist das erfindungsgemäße Maschinengehäuse einen reduzierten Schmiermittelförderbedarf auf, wodurch eine kleinere Schmiermittelpumpe verwendet werden kann. Dies führt ebenfalls zu geringeren Herstellungskosten, sowie zu einem reduzierten Kraftstoffverbrauch der Brennkraftmaschine.This object is achieved in that the machine housing has a wall that emerges in the installed position of the machine housing from a bearing and / or spilled lubricant in the machine housing, wherein another bearing is at least partially disposed in the collected lubricant. The proposed embodiment, the manufacturing costs for a generic machine housing are reduced because the processing of lubricant holes or the use of additional lubricant spray nozzles deleted. Furthermore, the machine housing according to the invention has a reduced lubricant delivery requirement, whereby a smaller lubricant pump can be used. This also leads to lower production costs, and to a reduced fuel consumption of the internal combustion engine.
Die erfindungsgemäße Ausgestaltung eignet sich gemäß Patentanspruch 2 insbesondere für weitgehend parallel zur Nockenwelle angeordnete Wellen. Für diesen Fall kann beispielsweise wasserfallartig das aus dem Lager der Nockenwelle austretende Schmiermittel in der geodätisch tiefer gelegenen Mulde aufgefangen werden. Zusätzlich wird auch ein Teil des beim Betrieb der Brennkraftmaschine beispielsweise von den Nocken der Nockenwelle verspritztes Schmiermittel in der Mulde aufgefangen.The embodiment of the invention is suitable in particular for largely parallel to the camshaft arranged waves according to claim 2. For this case, for example, the water emerging from the bearing of the camshaft lubricant can be collected in the geodetically lower trough. In addition, a part of the lubricant splashed during operation of the internal combustion engine, for example, by the cam of the camshaft in the trough is collected.
Die vorgeschlagene Ausgestaltung ist insbesondere für hubvariable Ventiltriebe mit einer Hubhöhenverstellung durch eine Exzenterwelle geeignet.The proposed embodiment is particularly suitable for variable stroke valve trains with a stroke height adjustment by an eccentric shaft.
Im Folgenden ist die Erfindung anhand eines bevorzugten Ausführungsbeispieles in zwei Figuren näher erläutert.
- Fig. 1
- zeigt eine Aufsicht auf ein erfindungsgemäßes Maschinengehäuse mit einer Nockenwelle und einer weiteren Welle,
- Fig. 2
- zeigt eine Aufsicht auf das erfindungsgemäße Maschinengehäuse ohne Nockenwelle und ohne weitere Welle.
- Fig. 1
- shows a plan view of an inventive engine housing with a camshaft and another shaft,
- Fig. 2
- shows a plan view of the machine housing according to the invention without a camshaft and without another shaft.
Beim Betrieb der Brennkraftmaschine wird die Mulde 6 im vorliegenden Ausführungsbeispiel durch von dem Ventiltrieb und Schmiermittelspritzdüsen verspritztes Schmiermittel aufgefüllt. In einem weiteren Ausführungsbeispiel kann auch ein weiteres Lager geodätisch oberhalb der Mulde 6 angeordnet sein, wobei in diesem Fall die Mulde 6 von aus diesem Lager austretendem Schmiermittel und je nach konstruktiver Ausgestaltung zusätzlich von verspritztem Schmiermittel aufgefüllt wird.During operation of the internal combustion engine, the depression 6 in the present embodiment is filled up with lubricant sprayed by the valve drive and lubricant injection nozzles. In another embodiment, a further bearing can be arranged geodetically above the trough 6, in which case the trough 6 is additionally filled with lubricating lubricant exiting from this bearing and, depending on the structural design.
Im vorliegenden Ausführungsbeispiel ist die weitere Welle 4, wie bereits oben kurz bemerkt, eine Exzenterwelle für einen hubvariablen Ventiltrieb, wobei die weitere Welle 4 parallel zur Nockenwelle 2 angeordnet ist. Selbstverständlich können auch noch weitere im Maschinengehäuse 1 angeordnete Lagerstellen von Wellen oder bewegte Bauteile auf die erfindungsgemäße Art und Weise geschmiert werden. In weiteren Ausführungsformen kann die Wandung 5 auch becherförmig, freistehend auf einer Bodenfläche des Maschinengehäuses 1 angeformt sein, ohne einen direkten Kontakt zu den Seitenwänden 1' aufzuweisen. In diesem Fall ist wird die Mulde 6 nur von der Wandung 5 und der Bodenfläche des Maschinengehäuses gebildet.In the present embodiment, the further shaft 4, as already briefly noted above, an eccentric shaft for a variable-stroke valve drive, wherein the further shaft 4 is arranged parallel to the camshaft 2. Of course, even more arranged in the machine housing 1 bearings of waves or moving components can be lubricated in the manner of the invention. In further embodiments, the
Aufgrund der erfindungsgemäßen Ausgestaltung werden die Herstell- bzw. Fertigungskosten für ein gattungsgemäßes Maschinengehäuse reduziert, da keine Schmiermittelbohrungen bzw. separate Schmiermittelspritzdüsen für das Lager 3 und/oder die Außenverzahnung 4" notwendig sind. Auch wird der Schmiermittelbedarf des Maschinengehäuses 1 deutlich reduziert, wodurch die Schmiermittelpumpe baulich verkleinert werden kann. Hierdurch sind Kosteneinsparpotentiale realisiert. Ferner ist der Energiebedarf einer kleineren Schmiermittelpumpe geringer, wodurch der Kraftstoffverbrauch beim Betrieb der Brennkraftmaschine reduziert ist.Owing to the embodiment according to the invention, the manufacturing or manufacturing costs for a generic machine housing are reduced, since no lubricant bores or separate lubricant spray nozzles are necessary for the bearing 3 and / or the external teeth 4 " In addition, the energy requirement of a smaller lubricant pump is lower, which reduces fuel consumption is reduced during operation of the internal combustion engine.
- 11
- Maschinengehäusemachine housing
- 1'1'
- Teilungsebeneparting plane
- 1"1"
- Außenwandouter wall
- 22
- Nockenwellecamshaft
- 33
- Lagercamp
- 44
- Weitere WelleAnother wave
- 4'4 '
- Zahnradsegmentgear segment
- 4"4 '
- Außenverzahnungexternal teeth
- 55
- Wandungwall
- 66
- Muldetrough
Claims (3)
- An engine housing (1), in particular a cylinder head for an internal-combustion, in which a camshaft (2), the bearings (3) of which are acted upon by a lubricant under pressure, and also a further shaft (4) which is rotatably mounted in at least one further bearing (5), wherein the engine housing (1) has a wall (5), characterised in that, in the installed position of the engine housing (1), the wall collects lubricant emerging from a bearing (3) and/or sprayed in the engine housing (1), wherein the further bearing (5) is arranged at least in sections in the collected lubricant.
- An engine housing according to Claim 1,
characterised in that the further shaft (4) is a shaft arranged substantially parallel to the camshaft with at least one radial control path. - An engine housing according to Claim 1 or 2, characterised in that the further shaft (4) is a control shaft for a variable stroke valve gear.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200410050056 DE102004050056A1 (en) | 2004-10-14 | 2004-10-14 | Machine housing for internal combustion engine has housing which exhibits wall and in installed position, it exhibits one support and is subjected to lubricant whereby lubricant is arranged in sections at support |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1666714A2 EP1666714A2 (en) | 2006-06-07 |
EP1666714A3 EP1666714A3 (en) | 2010-08-11 |
EP1666714B1 true EP1666714B1 (en) | 2011-08-24 |
Family
ID=35699493
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20050019395 Active EP1666714B1 (en) | 2004-10-14 | 2005-09-07 | Combustion engine block |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP1666714B1 (en) |
DE (1) | DE102004050056A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2915233B1 (en) * | 2007-04-20 | 2010-09-10 | Renault Sas | SYSTEM FOR AUTONOMOUS LUBRICATION OF MECHANICAL ORGANS OF A CYLINDER HEAD. |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1960833A1 (en) * | 1969-12-04 | 1971-06-09 | Daimler Benz Ag | Cylinder head of a valve-controlled reciprocating internal combustion engine |
IT1047395B (en) * | 1975-10-09 | 1980-09-10 | Fiat Veicoli Ind | INTERNAL COMBUSTION ENGINE WITH V-CYLINDERS |
DE3009062C2 (en) * | 1980-03-08 | 1982-09-16 | Ford-Werke AG, 5000 Köln | Cylinder head for an internal combustion engine |
JPS5967509U (en) * | 1982-10-27 | 1984-05-08 | 本田技研工業株式会社 | Camshaft bearing device in internal combustion engine |
DE8326935U1 (en) * | 1983-09-20 | 1987-10-22 | Dr.Ing.H.C. F. Porsche Ag, 7000 Stuttgart | Cylinder head for a preferably multi-cylinder internal combustion engine |
DE3346446A1 (en) * | 1983-12-22 | 1985-07-04 | Klöckner-Humboldt-Deutz AG, 5000 Köln | Actuating device for a valve timing mechanism |
JPS61167109A (en) * | 1985-01-18 | 1986-07-28 | Toyota Motor Corp | Mechanical valve lifter device for internal-combustion engine |
DE3710078C1 (en) * | 1987-03-27 | 1988-02-25 | Bayerische Motoren Werke Ag | Cylinder head for an internal combustion engine |
DE4312497A1 (en) * | 1993-04-16 | 1994-10-20 | Fichtel & Sachs Ag | Internal combustion engine with overhead camshaft and vertical crankshaft |
EP0638706A1 (en) * | 1993-08-05 | 1995-02-15 | Bayerische Motoren Werke Aktiengesellschaft | Valve actuating mechanism of an internal combustion engine |
US5456230A (en) * | 1994-05-19 | 1995-10-10 | Outboard Marine Corporation | Four-stroke internal combustion engine with contaminated oil elimination |
MY120554A (en) * | 1997-10-29 | 2005-11-30 | Honda Motor Co Ltd | Valve operating system in internal combustion engine |
US5988129A (en) * | 1998-09-21 | 1999-11-23 | General Motors Corporation | Engine lubrication system |
DE10226300B4 (en) * | 2002-06-10 | 2004-09-30 | Iav Gmbh Ingenieurgesellschaft Auto Und Verkehr | Device for the variable actuation of valves by means of cams for internal combustion engines |
-
2004
- 2004-10-14 DE DE200410050056 patent/DE102004050056A1/en not_active Withdrawn
-
2005
- 2005-09-07 EP EP20050019395 patent/EP1666714B1/en active Active
Also Published As
Publication number | Publication date |
---|---|
EP1666714A2 (en) | 2006-06-07 |
EP1666714A3 (en) | 2010-08-11 |
DE102004050056A1 (en) | 2006-04-27 |
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