DE10042036A1 - IC engine has first group of like gas exchange valves with valve axis in V-formation, and second valve group with parallel valve axis - Google Patents
IC engine has first group of like gas exchange valves with valve axis in V-formation, and second valve group with parallel valve axisInfo
- Publication number
- DE10042036A1 DE10042036A1 DE2000142036 DE10042036A DE10042036A1 DE 10042036 A1 DE10042036 A1 DE 10042036A1 DE 2000142036 DE2000142036 DE 2000142036 DE 10042036 A DE10042036 A DE 10042036A DE 10042036 A1 DE10042036 A1 DE 10042036A1
- Authority
- DE
- Germany
- Prior art keywords
- group
- valve
- axis
- gas exchange
- valves
- 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
Links
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
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/26—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of two or more valves operated simultaneously by same transmitting-gear; peculiar to machines or engines with more than two lift-valves per cylinder
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- 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
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- 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
- F01L1/12—Transmitting gear between valve drive and valve
- F01L1/18—Rocking arms or levers
-
- 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
- F01L1/20—Adjusting or compensating clearance
- F01L1/22—Adjusting or compensating clearance automatically, e.g. mechanically
- F01L1/24—Adjusting or compensating clearance automatically, e.g. mechanically by fluid means, e.g. hydraulically
- F01L1/2405—Adjusting or compensating clearance automatically, e.g. mechanically by fluid means, e.g. hydraulically by means of a hydraulic adjusting device located between the cylinder head and rocker arm
-
- 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
- F01L3/00—Lift-valve, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces; Parts or accessories thereof
-
- 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
- F02F1/00—Cylinders; Cylinder heads
- F02F1/24—Cylinder heads
- F02F1/26—Cylinder heads having cooling means
- F02F1/28—Cylinder heads having cooling means for air cooling
- F02F1/30—Finned cylinder heads
- F02F1/32—Finned cylinder heads the cylinder heads being of overhead valve type
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
- Combustion Methods Of Internal-Combustion Engines (AREA)
Abstract
Description
Die Erfindung betrifft eine Brennkraftmaschine mit einer ersten und einer zweiten Gruppe von im Zylinderkopf angeordneten jeweils gleichnamigen Gaswechsel ventilen.The invention relates to an internal combustion engine with a first and a second Group of gas exchanges of the same name arranged in the cylinder head valves.
Bei Brennkraftmaschinen mit zwei Gruppen von Gaswechselventilen, bei denen die Einspritzung des Kraftstoffes über eine Einspritzdüse direkt in den Brennraum erfolgt, ist die Mündung der Einspritzdüse häufig im Bereich der Zylinderachse angeordnet. Die Düsenachse der Einspritzdüse befindet sich dabei im wesentli chen im Bereich der Zylinderachse. Die Montage und Demontage der Einspritz düse erfolgt somit in Richtung der Zylinderachse. Dabei wird die konstruktive Positionierung der Einspritzdüse erleichtert, wenn Einlassventile und Auslassven tile zueinander V-förmig angeordnet sind.In internal combustion engines with two groups of gas exchange valves, in which the fuel is injected directly into the combustion chamber via an injection nozzle takes place, the mouth of the injection nozzle is often in the area of the cylinder axis arranged. The nozzle axis of the injection nozzle is essentially chen in the area of the cylinder axis. The assembly and disassembly of the injection nozzle is thus in the direction of the cylinder axis. The constructive Injector positioning facilitated when intake valves and exhaust valves Tiles are arranged in a V-shape.
Nicht immer steht allerdings in Richtung der Zylinderachse genügend Platz zur Verfügung, um eine Einspritzdüse in Richtung der Zylinderachse zu montieren bzw. zu demontieren. Insbesondere bei Boxermotoren mit in einer Ebene ange ordneten Zylindern kann es vorkommen, dass Rahmenteile des Fahrzeuges eine Demontage und Montage in Zylinderachsrichtung unmöglich machen.However, there is not always enough space in the direction of the cylinder axis Available to mount an injector in the direction of the cylinder axis or disassemble. Especially with boxer engines with one level ordered cylinders, it can happen that the frame parts of the vehicle Disassembly and assembly in the cylinder axis direction impossible.
Es ist die Aufgabe, diesen Nachteil zu vermeiden und bei einer Brennkraftma schine der eingangs genannten Art eine platzsparende Montage und Demontage von Zylinderkopfbauteilen zu ermöglichen.It is the task to avoid this disadvantage and with an internal combustion engine Machine of the type mentioned a space-saving assembly and disassembly of cylinder head components.
Erfindungsgemäß erfolgt dies dadurch, dass die Ventilachsen der ersten Gruppe von gleichnamigen Gaswechselventilen V-förmig zueinander angeordnet sind. In den Brennraum mündende Einbauteile, wie Zündkerze, Einspritzdüse oder dgl., können somit im V-Raum zwischen den beiden Gaswechselventilen angeordnet sein. Vorzugsweise ist dabei vorgesehen, dass die Ventilachsen der ersten Gruppe von gleichnamigen Gaswechselventilen eine erste Ventilachsenebene auf spannen, wobei Ventilachsen miteinander einen Winkel bis zu etwa 30°, vor zugsweise bis zu etwa 10°, besonders vorzugsweise bis zu etwa 6° einschließen.According to the invention, this is done in that the valve axes of the first group of gas exchange valves of the same name are arranged V-shaped to each other. In built-in components opening into the combustion chamber, such as spark plugs, injection nozzles or the like, can thus be arranged in the V space between the two gas exchange valves his. It is preferably provided that the valve axes of the first Group of gas exchange valves of the same name on a first valve axis level tension, with valve axes at an angle of up to about 30 ° preferably include up to about 10 °, particularly preferably up to about 6 °.
Gemäß einem äußerst platzsparenden Vorschlag der Erfindung ist vorgesehen, dass die Ventilachsen der ersten Gruppe von Gaswechselventilen symmetrisch bezüglich einer durch die Zylinderachse verlaufenden Normalebene auf die erste Ventilachsenebene angeordnet sind. According to an extremely space-saving proposal of the invention, that the valve axes of the first group of gas exchange valves are symmetrical with respect to a normal plane running through the cylinder axis to the first Valve axis level are arranged.
Die Vorzüge der Erfindung kommen insbesondere bei langgestreckten Einbautei len, wie Einspritzdüsen, zur Geltung. Die Düsenachse der im V-Raum angeord neten Einspritzdüse kann dabei in der Normalebene auf die Ventilachsenebene angeordnet sein. In der Normalebene kann weiters im V-Raum auch ein Glühstift positioniert werden.The advantages of the invention come in particular in the case of elongated built-in parts len, like injectors, to advantage. The nozzle axis of the arranged in the V space Neten injection nozzle can in the normal plane to the valve axis level be arranged. In the normal plane there can also be a glow plug in the V-space be positioned.
In weiterer Ausführung kann vorgesehen sein, dass die Ventilachsen der zweiten Gruppe von Gaswechselventilen parallel zueinander angeordnet sind und eine Ebene aufspannen, die vorzugsweise geneigt zur Zylinderachse angeordnet ist.In a further embodiment it can be provided that the valve axes of the second Group of gas exchange valves are arranged parallel to each other and one Clamp plane, which is preferably arranged inclined to the cylinder axis.
Gemäß einer besonders bevorzugten Ausführungsvariante der Erfindung ist vor gesehen, dass die gleichnamigen Ventile der ersten Gruppe durch Einlassventile und die gleichnamigen Ventile der zweiten Gruppe durch Auslassventile gebildet sind. Es ist aber auch denkbar, dass die gleichnamigen Gaswechselventile der ersten Gruppe durch Auslassventile und die Gaswechselventile der zweiten Gruppe durch Einlassventile gebildet werden.According to a particularly preferred embodiment variant of the invention, there is seen that the valves of the same name of the first group through intake valves and the valves of the same name of the second group are formed by exhaust valves are. But it is also conceivable that the gas exchange valves of the same name first group through exhaust valves and the gas exchange valves of the second Group are formed by intake valves.
Die Erfindung wird im folgenden anhand der Figuren näher erläutert. Es zeigen schematischThe invention is explained in more detail below with reference to the figures. Show it schematically
Fig. 1 eine Seitenansicht der im Zylinderkopf einer erfindungsgemäßen Brennkraftmaschine angeordneten Gaswechselventile von der Ein lassseite her, Fig. 1 is a side view of which is arranged in the cylinder head of an internal combustion engine according to the invention the gas exchange valves from the one transmitting side,
Fig. 2 einen Schnitt durch den Zylinderkopf gemäß der Linie II-II in Fig. 1, Fig. 2 shows a section through the cylinder head on the line II-II in Fig. 1,
Fig. 3 den Zylinderkopf im Schnitt gemäß der Linie III-III in Fig. 2 und Fig. 3 shows the cylinder head in section along the line III-III in Fig. 2 and
Fig. 4 den Zylinderkopf im Schnitt gemäß der Linie IV-IV in Fig. 1. Fig. 4 shows the cylinder head in section along the line IV-1 IV in Fig..
Erfindungsunwesentliche Teile sind in den Figuren nicht dargestellt.Parts not essential to the invention are not shown in the figures.
Einem Zylinderkopf 1 für eine Brennkraftmaschine sind eine erste Gruppe A und eine zweite Gruppe B von Gaswechselventilen 2, 3 angeordnet. Die Gaswechsel ventile 2 der ersten Gruppe A werden durch Einlassventile, die Gaswechselventile 3 der zweiten Gruppe B durch Auslassventile gebildet.A first group A and a second group B of gas exchange valves 2 , 3 are arranged in a cylinder head 1 for an internal combustion engine. The gas exchange valves 2 of the first group A are formed by intake valves, the gas exchange valves 3 of the second group B by exhaust valves.
Im Zylinderkopf 1 ist weiters eine nicht weiter dargestellten Brennraum mün dende Einspritzdüse 4 und ein Glühstift 5 angeordnet. Die Einspritzdüse 4 mün det nahe der Zylindermitte in den Brennraum.In the cylinder head 1 is also a combustion chamber mend ending injector 4 and a glow plug 5 is arranged. The injector 4 mün det near the center of the cylinder in the combustion chamber.
Die Achsen 2a der Gaswechselventile 2 spannen eine erste Ventilachsenebene 6 auf, die im wesentlichen parallel zur Zylinderachse 1a ausgebildet ist. Die Gas wechselventile 2 sind V-förmig zueinander angeordnet, so dass zwischen diesen ein V-Raum 7 entsteht. In dem V-Raum 7 ist die Einspritzdüse 4 sowie der Glüh stift 5 positioniert, wobei die Achsen 4a, 5a der Einspritzdüse 4 und des Glüh stiftes 5 etwa im Bereich einer durch die Zylinderachse 1a verlaufenden Normal ebene 8 auf die erste Ventilachsenebene 6 liegen. Die Gaswechselventile 2 sind bezüglich der Normalebene 8 etwa symmetrisch angeordnet, wobei die Ventil achsen 2a der Gaswechselventile 2 im Ausführungsbeispiel einen Winkel α von etwa 5° aufspannen. Der Winkel α kann allerdings auch größer, beispielsweise 10° oder 30°, sein. Die erste Ventilachsenebene 6 ist bevorzugt im wesentlichen parallel zur Zylinderachse 1a angeordnet.The axes 2 a of the gas exchange valves 2 span a first valve axis plane 6 , which is essentially parallel to the cylinder axis 1 a. The gas exchange valves 2 are arranged in a V shape with respect to one another, so that a V space 7 is formed between them. In the V-space 7 , the injector 4 and the glow plug 5 are positioned, the axes 4 a, 5 a of the injector 4 and the glow plug 5 approximately in the region of a normal plane 8 running through the cylinder axis 1 a on the first valve axis level 6 lie. The gas exchange valves 2 are arranged approximately symmetrically with respect to the normal plane 8 , the valve axes 2 a of the gas exchange valves 2 spanning an angle α of approximately 5 ° in the exemplary embodiment. However, the angle α can also be larger, for example 10 ° or 30 °. The first valve axis plane 6 is preferably arranged essentially parallel to the cylinder axis 1 a.
Die Ventilachsen 3a der zweiten Gruppe B der Gaswechselventile 3 spannen eine zweite Ventilachsenebene 9 auf, welche geneigt zu einer durch die Zylinderachse 1a und die nicht weiter dargestellte Kurbelwechselachse gebildeten Motorlängs ebene 1b angeordnet ist. Die Ventilachsen 3a sind dabei etwa parallel zueinan der, vorzugsweise auch parallel zur Normalebene 8 ausgebildet.The valve axes 3 a of the second group B of the gas exchange valves 3 span a second valve axis level 9 , which is inclined to a longitudinal axis 1 b formed by the cylinder axis 1 a and the crank change axis not shown. The valve axes 3 a are approximately parallel to each other, preferably also parallel to the normal plane 8 .
Mit Bezugszeichen 10 sind in den Figuren die Einlasskanäle, mit Bezugszeichen 11 die Auslasskanäle angedeutet.In the figures, the inlet channels are indicated by reference number 10 , and the outlet channels are indicated by reference number 11 .
Die erfindungsgemäße V-förmige Anordnung der ersten Gruppe A von Gaswech selventilen 2 ermöglicht es, die Einspritzdüse 4 von der Zylinderkopfseite zu montieren und demontieren, so dass zusätzlicher Montagefreiraum in Richtung der Zylinderachse 1a des Zylinderkopfes 1 nicht erforderlich ist.The V-shaped arrangement according to the invention of the first group A of gas exchange valves 2 makes it possible to mount and dismantle the injection nozzle 4 from the cylinder head side, so that additional installation space in the direction of the cylinder axis 1 a of the cylinder head 1 is not required.
Claims (7)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT0060199U AT3759U1 (en) | 1999-09-03 | 1999-09-03 | INTERNAL COMBUSTION ENGINE |
Publications (2)
Publication Number | Publication Date |
---|---|
DE10042036A1 true DE10042036A1 (en) | 2001-03-15 |
DE10042036C2 DE10042036C2 (en) | 2003-03-27 |
Family
ID=3494911
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE2000142036 Expired - Fee Related DE10042036C2 (en) | 1999-09-03 | 2000-08-26 | Internal combustion engine |
Country Status (2)
Country | Link |
---|---|
AT (1) | AT3759U1 (en) |
DE (1) | DE10042036C2 (en) |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5641419A (en) * | 1979-09-10 | 1981-04-18 | Honda Motor Co Ltd | Four-cycle internal combustion engine |
DE19548087C2 (en) * | 1995-12-21 | 1998-12-24 | Daimler Benz Ag | Cylinder head for an internal combustion engine |
-
1999
- 1999-09-03 AT AT0060199U patent/AT3759U1/en not_active IP Right Cessation
-
2000
- 2000-08-26 DE DE2000142036 patent/DE10042036C2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
AT3759U1 (en) | 2000-07-25 |
DE10042036C2 (en) | 2003-03-27 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OP8 | Request for examination as to paragraph 44 patent law | ||
8304 | Grant after examination procedure | ||
8364 | No opposition during term of opposition | ||
R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |
Effective date: 20130301 |