EP0930421B1 - Zylinderkopf - Google Patents
Zylinderkopf Download PDFInfo
- Publication number
- EP0930421B1 EP0930421B1 EP99100592A EP99100592A EP0930421B1 EP 0930421 B1 EP0930421 B1 EP 0930421B1 EP 99100592 A EP99100592 A EP 99100592A EP 99100592 A EP99100592 A EP 99100592A EP 0930421 B1 EP0930421 B1 EP 0930421B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- camshaft
- inlet
- exhaust
- valves
- cylinder head
- 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.)
- Expired - Lifetime
Links
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
- 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
-
- 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
- F01L1/262—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 with valve stems disposed radially from a centre which is substantially the centre of curvature of the upper wall surface of a combustion chamber
Definitions
- the present invention relates to a cylinder head.
- the multi-valve internal combustion engine from the publication is an example of this EP 0 144 179 B1.
- This internal combustion engine has one Cylinder head with five gas exchange valves, whose axes are in one Cut common point on the cylinder axis.
- a single camshaft is provided, which is approximately in the middle between the inlet valves and the outlet valves is arranged. Above or below this camshaft there are two thru axles for the valve actuation levers provided so that the cylinder head is very high is executed.
- From US 5,673,660 is a cylinder head according to the preamble of claim 1 with an intake camshaft and an exhaust camshaft known in which an ignition or injection device is arranged substantially parallel to the cylinder axis and inlet valve and the exhaust valve is substantially radially inclined to the cylinder axis are.
- the cylinder head has standing compensating elements and valve actuation levers on.
- the valve actuation levers point from the intake or exhaust valves starting in the direction transverse to the engine longitudinal axis to the outside away where they are stored on compensating elements. This training the Arrangement of valve, valve actuation lever and compensating elements and thus the entire engine is very space-consuming.
- an intake camshaft and an exhaust camshaft has an ignition or injection device per cylinder, which is arranged substantially parallel to the cylinder axis, intake valves and exhaust valves which are substantially radially inclined to the cylinder axis, has standing compensating elements and valve actuating lever, wherein the compensating elements adjacent to the ignition or injection device are arranged, and the valve actuating lever each with one end attack one of the intake or exhaust valves from the stem ends of the radial inlet or outlet valves face inwards and with their other End on one of the standing compensating elements are favored the cylinder head has an optimal combustion chamber shape and is also very compact and thus built up to save space.
- valve actuation levers point from the stem ends of the radial intake and exhaust valves to the inside where they on the standing compensation elements next to the ignition or injection device are stored.
- the intake camshaft is above the valve actuation lever or the exhaust camshaft, respectively the valve actuation lever rests on the center area.
- valve operating levers to the intake and exhaust camshafts are oriented vertically, the valve actuating lever with its attack one end of one of the intake or exhaust valves and with their other end mounted on one of the standing compensating elements are.
- the intake camshaft and the exhaust camshaft advantageously cut or tangent the cylinder in a projection along the cylinder axis. This feature realizes that the two camshafts are close together lie and that the cylinder head despite the radially inclined Einund Exhaust valves in the axial direction of the camshafts are relatively narrow is.
- the intake camshaft and the Exhaust camshaft for contact with the valve actuation levers oriented perpendicular to it oblique cam contours.
- the oblique cam contours can the two camshafts with the radially inclined Einund Exhaust valves interacting valve actuation lever free of lateral forces actuate.
- the ignition or injection device can in relation to the cylinder axis Direction to the exhaust camshaft be arranged offset. Because with one The valve plates have the same number of intake and exhaust valves per cylinder the inlet valves to favor the gas exchange mostly larger than that Valve plate of the exhaust valves, so that the ignition or injection device taking into account the spatial conditions for the exhaust camshaft or is arranged offset to the outlet side. This applies of course, even if there are a large number of intake valves per cylinder is provided as exhaust valves.
- the inlet and outlet valves preferably point along in a projection the axial direction of the intake and exhaust camshafts of different sizes Angle of inclination. Because with an equal number of admission and Exhaust valves per cylinder optimized the shape of the combustion chamber by the Intake valves with the larger valve plates to the cylinder axis less strong are inclined than the outlet valves with the smaller valve plates.
- the inlet and outlet valves preferably have one Projection perpendicular to the axial direction of the intake and exhaust camshafts in each case equally large angles of inclination. So the valve train can still have a certain symmetry.
- One of the compensating elements for mounting one of the valve actuation levers for one of the inlet valves and one of the compensating elements for storing one of the valve actuation levers for one of the exhaust valves are arranged close to each other. In this way the valve train of an intake and an exhaust valve is spatially combined, so that in the area between two of the intake and exhaust valves sufficient space remains for an additional ignition or injection device.
- two valve operating levers which are arranged closely adjacent to each other Compensating elements are assigned to the axial direction of the Intake camshaft and the exhaust camshaft each tilted slightly. In order to become the camshaft axial forces acting on the respective camshafts reduced or compensated within the individual cylinders.
- valve actuation levers face against the intake camshaft or each of the exhaust camshafts is mounted approximately centrally Roll up to reduce the frictional resistance.
- the cylinder head 1 has an intake camshaft 2 and a Austatternokkenwelle 2 'and one ignition device 4 per cylinder 3, two intake valves 5 and two exhaust valves 5 ', four standing compensating elements 6, 6' and four Valve actuation lever 7, 7 'on. There is also one injector per cylinder 3 8 provided.
- FIGS. 1 to 3 Half of the cylinder with an inlet valve 5 and an outlet valve 5 ', two Compensation elements 6, 6 'and two valve actuation levers 7, 7' shown.
- the other half of the cylinder can be mirror-symmetrical to Introduce line E trained.
- the intake camshaft 2 and the exhaust camshaft 2 ' are parallel to each other arranged and cut in a projection along the cylinder axis Z the cylinder 3, since they are relatively close to each other.
- one of the cylinders 3 is below the cylinder head 1 indicated.
- An ignition device is offset parallel to the axis Z of the cylinder 3 4 arranged.
- the igniter 4 is from the intake camshaft 2 offset towards the exhaust camshaft 2 ', since between an injector 8 is arranged in the two inlet valves 5.
- an ignition device is arranged instead of the ignition device 4 Injector 8 and that instead of the injector 8 an ignition device is arranged.
- the two intake valves 5 and the two exhaust valves 5 ' are to the Z axis of the cylinder 3 substantially inclined radially. It is striking that the valve disc 10 of the intake valves 5 are larger than the valve plate 10 'of the exhaust valves 5 '. It can also be seen from FIGS. 1 and 2 that the inlet valves 5 and the exhaust valves 5 'in a projection along the axial direction N of the intake camshaft 2 and the exhaust camshaft 2 'different have large inclination angles ⁇ , ⁇ ', the inclination angle ⁇ being the Inlet valves 5 is smaller than the angle of inclination ⁇ 'of the outlet valves 5'.
- the compensating elements 6, 6 ' are arranged in parallel and adjacent to the ignition device 4.
- the Compensating elements 6, 6 ' are symmetrical about the axis Z of the cylinder 3 arranged.
- valve actuation levers 7, 7 ' To actuate the four radial inlet and outlet valves 5, 5 'are four valve actuation levers 7, 7 'provided. Grip the valve actuation levers 7, 7 ' with one end each at one of the inlet or outlet valves 5, 5 ' and are at their other end on one of the compensating elements 6, 6 ' stored. So are the valve operating lever 7 for the inlet valves 5 and Valve actuation lever 7 'for the exhaust valves 5' on two pairs of compensating elements 6, 6 'and are the two valve actuation levers 7, 7 'perpendicular to the intake camshaft 2 and the exhaust camshaft 2' oriented.
- valve actuation levers 7, 7 ' finally an approximately centrally mounted roller 11, 11 ', which with the intake camshaft 2 or the exhaust camshaft 2' communicates.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Valve-Gear Or Valve Arrangements (AREA)
Description
- Figur 1
- Eine Draufsicht des erfindungsgemäßen Zylinderkopfes in schematischer Darstellung;
- Figur 2
- eine Seitenansicht des Zylinderkopfes aus Figur 1 entlang der Linie II-II; und
- Figur 3
- eine Seitenansicht des Zylinderkopfes aus Figur 1 entlang der Ansichtsrichtung III.
Claims (10)
- Zylinderkopf mit einer Einlaßnockenwelle (2) und einer Auslaßnockenwelle (2'), der pro Zylinder (3)dadurch gekennzeichnet, dass die stehende Ausgleichselemente im wesentlichen parallel und benachbart zu der Zünd- oder Einspritzvorrichtung (4) angeordnet sind, undeine Zünd- oder Einspritzvorrichtung (4), die zur Zylinderachse (Z) im wesentlichen parallel angeordnet ist,Einlaßventile (5) und Auslaßventile (5'), die zur Zylinderachse (Z) im wesentlichen radial geneigt sind und die in einer Projektion entlang der Achsrichtung (N) der Einlaßnockenwelle (2) und der Auslaßnockenwelle (2') Neigungswinkel (α, α') und in einer Projektion senkrecht zur Achsrichtung (N) der Einlaßnockenwelle (2) und der Auslaßnockenwelle (2') Neigungswinkel (β, β') aufweisen, undstehende Ausgleichselemente (6, 6') und Ventilbetätigungshebel (7, 7') aufweist,
dass Ventilbetätigungshebel (7, 7') mit ihrem einen Ende an einem der Ein- oder Auslaßventile (5, 5') angreifen, von den Schaftenden der radialen Ein- oder Auslassventile (5, 5') nach innen weisen und mit ihrem anderen Ende auf einem der stehenden Ausgleichselementen (6, 6') gelagert sind. - Zylinderkopf nach Anspruch 1, dadurch gekennzeichnet, daß die Einlaßnockenwelle (2) und die Auslaßnockenwelle (2') in einer Projektion entlang der Zylinderachse (Z) den Zylinder (3) schneiden oder zumindest tangieren.
- Zylinderkopf nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, daß die Einlaßnockenwelle (2) und die Auslaßnockenwelle (2') zur Anlage an den dazu senkrecht orientierten Ventilbetätigungshebeln (7, 7') Nocken (9, 9') mit schrägen Nockenkonturen aufweisen.
- Zylinderkopf nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die Zünd- oder Einspritzvorrichtung (4) gegenüber der Zylinderachse (Z) in Richtung zur Auslaßnockenwelle (2') versetzt angeordnet ist.
- Zylinderkopf nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die Einlaßventile (5) und die Auslaßventile (5') in einer Projektion entlang der Achsrichtung (N) der Einlaßnockenwelle (2) und der Auslaßnockenwelle (2') unterschiedlich große Neigungswinkel (α, α') aufweisen.
- Zylinderkopf nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß die Einlaßventile (5) und die Auslaßventile (5') in einer Projektion senkrecht zur Achsrichtung (N) der Einlaßnockenwelle (2) und der Auslaßnockenwelle (2') gleich große Neigungswinkel (β, β') aufweisen.
- Zylinderkopf nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß jeweils eines der Ausgleichselemente (6, 6') zur Lagerung eines der Ventilbetätigungshebel (7) für eines der Einlaßventile (5) und eines der Ausgleichselemente (6, 6') zur Lagerung eines der Ventilbetätigungshebel (7') für eines der Auslaßventile (5') eng benachbart nebeneinander angeordnet sind.
- Zylinderkopf nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß die beiden Ventilbetätigungshebel (7, 7'), die den eng benachbart nebeneinander angeordneten Ausgleichselementen (6, 6') zugeordnet sind, zur Achsrichtung (N) der Einlaßnockenwelle (2) und der Auslaßnockenwelle (2') jeweils leicht gekippt angeordnet sind.
- Zylinderkopf nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, daß die Ventilbetätigungshebel (7, 7') zur Anlage an der Einlaßnockenwelle (2) oder der Auslaßnockenwelle (2') jeweils eine annähernd mittig gelagerte Rolle (11, 11') aufweisen.
- Zylinderkopf gemäß den Merkmalen von Anspruch 1, dadurch gekennzeichnet, dass die Ventilbetätigungshebel zu Einlaß- und zu Auslaßnockenwelle senkrecht orientiert sind, wobei die Ventilbetätigungshebel mit ihrem einen Ende an einem der Ein- oder Auslaßventile (5, 5') angreifen und mit ihrem anderen Ende auf einem der stehenden Ausgleichselemente (6, 6') gelagert sind.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19801606A DE19801606A1 (de) | 1998-01-17 | 1998-01-17 | Zylinderkopf |
| DE19801606 | 1998-01-17 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0930421A1 EP0930421A1 (de) | 1999-07-21 |
| EP0930421B1 true EP0930421B1 (de) | 2003-05-07 |
Family
ID=7854885
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP99100592A Expired - Lifetime EP0930421B1 (de) | 1998-01-17 | 1999-01-14 | Zylinderkopf |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP0930421B1 (de) |
| DE (2) | DE19801606A1 (de) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102400724A (zh) * | 2010-09-16 | 2012-04-04 | 本田技研工业株式会社 | 带气门传动机构的发动机 |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0990774B1 (de) * | 1998-09-30 | 2004-07-21 | Yamaha Hatsudoki Kabushiki Kaisha | Dreidimensionaler Nocken und Verfahren zur Herstellung eines dreidimensionalen Nockens in einer Ventilsteuerungsvorrichtung für Brennkraftmaschinen |
| DE19953419A1 (de) * | 1999-11-06 | 2001-05-10 | Deutz Ag | Brennkraftmaschine |
| JP4627121B2 (ja) | 2001-06-12 | 2011-02-09 | ヤマハ発動機株式会社 | 三次元カムおよび三次元カム用研削装置 |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4333426A (en) * | 1980-01-04 | 1982-06-08 | Ford Motor Company | Internal combustion engine construction |
| AU545712B2 (en) | 1982-07-23 | 1985-07-25 | Honda Giken Kogyo Kabushiki Kaisha | I.c. engine valve actuating apparatus |
| DE3469309D1 (en) | 1983-11-25 | 1988-03-17 | Honda Motor Co Ltd | Multiple-valved internal combustion engine |
| DE3838305A1 (de) * | 1988-11-11 | 1990-05-17 | Audi Ag | Zylinderkopf einer brennkraftmaschine |
| JPH0337308A (ja) * | 1989-06-30 | 1991-02-18 | Mazda Motor Corp | Dohcエンジンの動弁装置 |
| DE3943727C2 (de) * | 1989-12-11 | 1995-07-13 | Porsche Ag | Zylinderkopf einer Brennkraftmaschine |
| SK279912B6 (sk) * | 1990-09-13 | 1999-05-07 | Škoda Auto | Štvorventilová hlava valcov |
| JP2792314B2 (ja) * | 1992-03-05 | 1998-09-03 | 三菱自動車工業株式会社 | 内燃機関の動弁装置 |
| DE4426557A1 (de) * | 1994-07-27 | 1996-02-01 | Imre Dr Techn Szodfridt | Diagonal angeordnete Ventile |
| US5570665A (en) * | 1995-04-04 | 1996-11-05 | Chrysler Corporation | Valve train for internal combustion engine |
| DE19548088C1 (de) * | 1995-12-21 | 1997-07-17 | Daimler Benz Ag | Zylinderkopf für eine Brennkraftmaschine |
| DE19620546A1 (de) * | 1996-05-22 | 1997-11-27 | Audi Ag | Zylinderkopf für eine mehrzylindrige Brennkraftmaschine |
-
1998
- 1998-01-17 DE DE19801606A patent/DE19801606A1/de not_active Withdrawn
-
1999
- 1999-01-14 EP EP99100592A patent/EP0930421B1/de not_active Expired - Lifetime
- 1999-01-14 DE DE59905376T patent/DE59905376D1/de not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102400724A (zh) * | 2010-09-16 | 2012-04-04 | 本田技研工业株式会社 | 带气门传动机构的发动机 |
| CN102400724B (zh) * | 2010-09-16 | 2014-06-18 | 本田技研工业株式会社 | 带气门传动机构的发动机 |
Also Published As
| Publication number | Publication date |
|---|---|
| DE19801606A1 (de) | 1999-07-22 |
| DE59905376D1 (de) | 2003-06-12 |
| EP0930421A1 (de) | 1999-07-21 |
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