EP0974000B1 - Mehrzylinder-brennkraftmaschine mit zwei einlass- und zwei auslassventilen - Google Patents
Mehrzylinder-brennkraftmaschine mit zwei einlass- und zwei auslassventilen Download PDFInfo
- Publication number
- EP0974000B1 EP0974000B1 EP98921441A EP98921441A EP0974000B1 EP 0974000 B1 EP0974000 B1 EP 0974000B1 EP 98921441 A EP98921441 A EP 98921441A EP 98921441 A EP98921441 A EP 98921441A EP 0974000 B1 EP0974000 B1 EP 0974000B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- intake
- exhaust
- internal combustion
- combustion engine
- 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.)
- Expired - Lifetime
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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
Definitions
- the invention relates to a multi-cylinder internal combustion engine with two Intake and two exhaust valves, the intake valves on the one hand and the exhaust valves, on the other hand, on opposite longitudinal sides of the engine are arranged, the inlet valves and exhaust valves through a camshaft via intake rocker arms or exhaust rocker arm can be actuated, both the intake rocker arm and the exhaust rocker arms are designed as fork rocker arms are, each with a rocker arm two valves of the same name actuated per cylinder, the axes of the intake rocker arms or the exhaust rocker arm offset from one another, lying on top of each other are arranged, and wherein the exhaust rocker arm of all cylinders one Row of cylinders are mounted on a continuous shaft.
- Such an internal combustion engine is known from DE 12 42 045.
- This internal combustion engine has intake rocker arms and exhaust rocker arms on, which each cylinder to a fork rocker arm and as Bridge rocker arm designed fork rocker arm summarized are.
- the bridge rocker arm acts through the connecting webs a considerable increase in the mass to be moved and a reduction in bending stiffness.
- EP 0 194 922 is a spark-ignition internal combustion engine with a central overhead camshaft, either over two bridge rocker arms or a combination with single rocker arms Valves are operated.
- the existing space in the rocker arm housing can be used optimally if - in Axis direction viewed - the axis of the exhaust rocker arm per cylinder is arranged obliquely above the axis of the intake rocker arm, so that the size of the cylinder head and the rocker arm housing is very compact.
- An arrangement is particularly space-saving of the axes of the intake rocker arms in the parting plane between Rocker arm housing and cylinder head are arranged.
- valve axles can all be parallel to each other, or even a pointed one Include angles. Because the exhaust rocker arm of all cylinders a row of cylinders mounted on a continuous shaft are, it is possible to control the timing of the exhaust valves Twisting the shaft to change. This allows for simple Way the realization of an engine brake. For this purpose, that the shaft is in the area of the bearing of an exhaust rocker arm has an eccentric bearing sleeve and with a rotating device at one end of the internal combustion engine in connection stands.
- the fork rocker arms When viewed in plan, the fork rocker arms preferably have one asymmetrical shape on, causing the push rods to operate the rocker arm can be relatively far apart.
- the free space between the push rods can be used for Cylinder head bolts and the fuel supply line are used.
- the intake and exhaust rocker arms are located on the side of the intake valves and the inlet channels as well as the outlet channels from the side Extend flange surfaces on the exhaust valve side.
- the intake manifold is located above the exhaust manifold, so that all gas exchange lines on one engine longitudinal side can be accommodated.
- the one on the opposite Longitudinal space left of the motor can be used for accommodation used by other units, for example the injection pump become.
- the invention is characterized in that the bearing of the shaft are formed by holes in the rocker arm housing.
- the Shafts of the inlet valves have a shorter length than that Shafts of the exhaust valves, preferably the valve springs Intake valves are shorter than the valve springs of the exhaust valves. Furthermore, it is advantageous if the stroke of the exhaust valves is greater than the stroke of the intake valves. Inlet and outlet rocker arms can be carried out with different lever ratios.
- FIG. 1 shows a cross section through the cylinder head and rocker arm housing the internal combustion engine according to the invention Section I-I in Fig. 2
- Fig. 2 is a plan view of the rocker arm housing
- Fig. 3 shows a section through the rocker arm housing according to the line III-III in Fig. 2
- Fig. 4 is a plan view of an intake rocker arm.
- a rocker arm housing screwed onto a cylinder head 1 2 is an intake rocker arm 4 and an exhaust rocker arm 5 per cylinder provided, the axes 4a and 5a - as can be seen in Fig. 1 - are arranged obliquely one above the other.
- the inlet rocker arms 4 are there rotatably supported individually on journal 6, which from the side of the cylinder head 1 screwed to the rocker arm housing 2 using screws 7 are.
- the axis 6a of the journal 6 lies in the parting plane 24 between cylinder head 1 and rocker arm housing 2.
- Die Exhaust rocker arms 5 are on one cylinder for all cylinders through shaft 8 mounted, the axis of which is designated 8a. Instead of a shaft 8, a continuous axis can also be provided his.
- the Shaft 8 on a rotating device 9, not shown one end face can be twisted.
- the storage of the exhaust rocker arm 5 takes place via slightly eccentric sleeves 10.
- the timing of the exhaust valves 11th influenced and thus an engine braking effect can be achieved.
- the Shafts 12b of the intake valves 12 have a lower height than that Shafts 11b of the exhaust valves 11.
- the valve springs for intake valves 12 and exhaust valves 11 can have different lengths.
- the axis 6a of the journal 6 of the intake rocker arm 4th and the axis 8a of the shaft 8 of the exhaust rocker arm 5 are on one One side through the crankshaft axis and the cylinder axes 13 spanned engine longitudinal plane 14 arranged.
- the intake manifold 19 is thus arranged above the exhaust manifold 20.
- the inlet channel consists of a part of the cylinder Rocker arm housing 2 formed main channel 30 (Fig. 3) and four not Sub-channels shown, each to an inlet valve Guide 12 of the two cylinders.
- the filling channels assume a common cross-sectional area a collecting space formed by the main channel 30.
- the Intake ducts 12 of two adjacent cylinders are each symmetrical to a normal plane on the crankshaft axis between the arranged two cylinders.
- the collection room and the main channel 30 are in the Partition plane 24 between the rocker arm housing 2 and the cylinder head 1. This enables the rocker arm housing 2 as a die-cast part manufacture.
- a main channel 30 of the intake system is between the bearings the bearing pin 6 passed. Branched as described above it is symmetrical in a total of four subchannels for supply two adjacent cylinders.
- the intake rocker arms 4 and the exhaust rocker arm 5 has an asymmetrical layout, so that between the push rods 21 and 22 for the intake rocker arm 4 and the exhaust rocker arm 5 in the area of the engine transverse plane 23 free space is formed, for example to accommodate a fuel supply line, not shown, can be used.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Valve-Gear Or Valve Arrangements (AREA)
Description
Claims (12)
- Mehrzylinder-Brennkraftmaschine mit zwei Einlass- und zwei Auslassventilen (12, 11), wobei die Einlassventile (12) einerseits und die Auslassventile (11) andererseits auf gegenüberliegenden Brennkraftmaschinentängsseiten angeordnet sind, wobei die Einlassventile (12) und Auslassventile (11) durch eine Nockenwelle über Einlasskipphebel (4) bzw. Auslasskipphebel (5) betätigbar sind, wobei sowohl die Einlasskipphebel (4) als auch die Auslasskipphebel (5) als Gabelkipphebel ausgeführt sind, wobei jeweils ein Gabelkipphebel (4, 5) zwei gleichnamige Ventile (12, 11) pro Zylinder (13) betätigt, wobei die Achsen (4a, 5a) der Einlasskipphebel (4) bzw. der Auslasskipphebel (5) gegeneinander versetzt, übereinanderliegend angeordnet sind, und wobei die Auslasskipphebel (11) aller Zylinder (3) einer Zylinderreihe auf einer durchgehenden Welle (8) gelagert sind,
dadurch gekennzeichnet, dass die Kipphebel (4, 5) in einem auf dem Zylinderkopf (1) aufgesetzten Kipphebelgehäuse (2) drehbar gelagert sind, wobei pro Einlasskipphebel (4) ein Lagerzapfen (6) vorgesehen ist. - Brennkraftmaschine nach Anspruch 1,
dadurch gekennzeichnet, dass der Lagerzapfen (6) von der Seite des Zylinderkopfes (1) am Kipphebelgehäuse (2) lösbar befestigt ist. - Brennkraftmaschine nach Anspruch 1 oder 2,
dadurch gekennzeichnet, daß die Achsen (5a) der Auslaßkipphebel (5) einen größeren Abstand zur Zylinderkopfdichtfläche (25) aufweisen als die Achsen (4a) der Einlaßkipphebel (4). - Brennkraftmaschine nach Anspruch 2 oder 3,
dadurch gekennzeichnet, daß die Achsen (4a) der Einlaßkipphebel (4) in der Trennebene (24) zwischen Kipphebelgehäuse (2) und Zylinderkopf (1) angeordnet sind. - Brennkraftmaschine nach einem der Ansprüche 1 bis 4,
dadurch gekennzeichnet, daß - in Achsrichtung betrachtet - pro Zylinder (3) die Achse (11b) des Auslaßkipphebels (11) schräg über der Achse (12b) des Einlaßkipphebels (12) angeordnet ist. - Brennkraftmaschine nach einem der Ansprüche 1 bis 5,
dadurch gekennzeichnet, daß die Auslaßkipphebel (11) aller Zylinder (3) einer Zylinderreihe auf einer durchgehenden Lagerachse gelagert sind. - Brennkraftmaschine nach einem der Ansprüche 1 bis 6,
dadurch gekennzeichnet daß die Einlaß- und Auslaßkipphebel (4, 5) - im Grundriß betrachtet - eine asymmetrische Form aufweisen. - Brennkraftmaschine nach einem der Ansprüche 1 bis 7,
dadurch gekennzeichnet, daß - bezogen auf die Motorlängsebene (14) - die Achsen (4a, 5a) der Einlaß- und Auslaßkipphebel (4, 5) auf der Seite der Einlaßventile (12) angeordnet sind, und die Einlaßkanäle (15) als auch die Auslaßkanäle (16) von seitlichen Flanschflächen (17, 18) auf der Seite der Auslaßventile (11) ausgehen. - Brennkraftmaschine nach Anspruch 8,
dadurch gekennzeichnet, daß die Welle (8) jeweils im Bereich der Lagerung eines Auslaßkipphebels (5) eine exzentrische Lagerhülse (10) aufweist und mit einer Verdreheinrichtung (9) an einer Stirnseite der Brennkraftmaschine in Verbindung steht. - Brennkraftmaschine nach einem der Ansprüche 5 bis 9,
dadurch gekennzeichnet, daß die Lager der Welle (8) durch Bohrungen im Kipphebelgehäuse (2) gebildet sind. - Brennkraftmaschine nach einem der Ansprüche 1 bis 10,
dadurch gekennzeichnet, daß die Schäfte (12b) der Einlaßventile (12) eine geringere Länge aufweisen als die Schäfte (11b) der Auslaßventile (11), wobei vorzugsweise die Ventilfedern der Einlaßventile (12) kürzer sind als die Ventilfedern der Auslaßventile (11). - Brennkraftmaschine nach einem der Ansprüche 1 bis 11,
dadurch gekennzeichnet, daß der Hub der Auslaßventile (11) größer ist als der Hub der Einlaßventile (12).
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT60697 | 1997-04-09 | ||
AT0060697A AT410242B (de) | 1997-04-09 | 1997-04-09 | Mehrzylinder-brennkraftmaschine mit zwei einlass- und zwei auslassventilen |
PCT/EP1998/002034 WO1998045579A1 (de) | 1997-04-09 | 1998-04-08 | Mehrzylinder-brennkraftmaschine mit zwei einlass- und zwei auslassventilen |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0974000A1 EP0974000A1 (de) | 2000-01-26 |
EP0974000B1 true EP0974000B1 (de) | 2002-12-11 |
Family
ID=3495047
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98921441A Expired - Lifetime EP0974000B1 (de) | 1997-04-09 | 1998-04-08 | Mehrzylinder-brennkraftmaschine mit zwei einlass- und zwei auslassventilen |
Country Status (7)
Country | Link |
---|---|
US (1) | US6205966B1 (de) |
EP (1) | EP0974000B1 (de) |
JP (1) | JP2000513068A (de) |
CN (1) | CN1095027C (de) |
AT (1) | AT410242B (de) |
DE (1) | DE59806629D1 (de) |
WO (1) | WO1998045579A1 (de) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
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US4096957A (en) * | 1977-07-18 | 1978-06-27 | Caterpillar Tractor Co. | Pivot pin assembly |
US6349688B1 (en) * | 2000-02-18 | 2002-02-26 | Briggs & Stratton Corporation | Direct lever overhead valve system |
US20030098965A1 (en) * | 2001-11-29 | 2003-05-29 | Mike Binnard | System and method for supporting a device holder with separate components |
US6505589B1 (en) * | 2002-02-01 | 2003-01-14 | General Motors Corporation | Single cam three-valve engine overhead valve train |
US6895925B2 (en) * | 2002-09-18 | 2005-05-24 | Daimlerchrysler Corporation | Internal combustion engine having three valves per cylinder |
JP2009243401A (ja) * | 2008-03-31 | 2009-10-22 | Honda Motor Co Ltd | 4サイクルエンジンにおけるシリンダヘッド構造 |
US8220429B2 (en) * | 2009-07-23 | 2012-07-17 | Briggs & Stratton Corporation | Overhead valve and rocker arm configuration for a small engine |
CN102337941A (zh) * | 2011-09-27 | 2012-02-01 | 上海北星实业有限公司 | 一种引擎上的配气机构 |
CN103423015A (zh) * | 2012-05-15 | 2013-12-04 | 安徽华菱汽车有限公司 | 一种内燃机及其活塞 |
DE102013103553A1 (de) * | 2013-04-09 | 2014-10-09 | Fev Gmbh | Ventilsteuerung für wenigstens zwei Hubventile |
CN107939467B (zh) * | 2017-12-28 | 2023-12-15 | 潍柴动力股份有限公司 | 气门进排气摇臂结构及柴油机 |
Family Cites Families (24)
Publication number | Priority date | Publication date | Assignee | Title |
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US1301007A (en) * | 1917-02-20 | 1919-04-15 | Laurel Motors Corp | Control means for intakes and exhausts of internal-combustion engines. |
DE340800C (de) * | 1918-04-08 | 1921-09-19 | Louis Renault | Schwinghebelsteuerung fuer Explosionsmotoren mit zwei Einlass- und Auslassventilen |
US1528568A (en) * | 1921-10-03 | 1925-03-03 | Laurel Motors Corp | Valve construction for internal-combustion engines |
US2650578A (en) * | 1949-02-12 | 1953-09-01 | Daub Rudolph | Air cooling for internal-combustion engines |
AT188548B (de) * | 1954-06-25 | 1957-01-25 | Simmering Graz Pauker Ag | Ventilsteuerung für Brennkraftmaschinen |
DE1242045B (de) * | 1966-08-20 | 1967-06-08 | Daimler Benz Ag | Ventilsteuerung fuer eine Kolbenbrennkraftmaschine |
DE1800774A1 (de) | 1968-10-03 | 1970-06-25 | Maschf Augsburg Nuernberg Ag | Einrichtung an fluessigkeitsgekuehlten Zylinderdeckeln von Brennkraftmaschinen |
GB1279977A (en) * | 1968-12-14 | 1972-06-28 | Vauxhall Motors Ltd | Internal combustion engine valve actuator mechanism |
DE2025305A1 (de) * | 1970-05-23 | 1971-12-09 | Daimler-Benz Ag, 7000 Stuttgart | Ventilsteuerung |
DE2025304A1 (de) | 1970-05-23 | 1971-12-09 | Daimler-Benz Ag, 7000 Stuttgart | Ventilsteuerung für einen schnell laufenden Viertakt-Verbrennungsmotor mit mehr als zwei Ventilen je Zylinder |
US3967601A (en) * | 1974-09-07 | 1976-07-06 | Motoren- Und Turbinen-Union Friedrichshafen Gmbh | Valve control |
FR2578907B1 (fr) | 1985-03-13 | 1989-06-16 | Peugeot | Dispositif d'actionnement de soupapes dans un moteur a combustion interne comportant quatre soupapes inclinees en v et une bougie centrale par cylindre |
AT394249B (de) * | 1985-05-22 | 1992-02-25 | Avl Verbrennungskraft Messtech | Brennkraftmaschine |
GB8605619D0 (en) * | 1986-03-07 | 1986-04-16 | Valentine B C | Poppet valve assemblies |
JPH059444Y2 (de) * | 1986-07-11 | 1993-03-09 | ||
US4741301A (en) * | 1986-11-28 | 1988-05-03 | General Motors Corporation | Engine valve train with inner and outer cam followers |
US5070824A (en) * | 1988-05-30 | 1991-12-10 | Yamaha Hatsudoki Kabushiki Kaisha | Combustion chamber and valve operating mechanism for multi-valve engine |
JP2623856B2 (ja) * | 1989-09-05 | 1997-06-25 | 日産自動車株式会社 | 内燃機関のシリンダヘッド |
US5007387A (en) * | 1990-01-29 | 1991-04-16 | Masachika Arao | Four valve per cylinder engine head |
US5101777A (en) | 1990-02-20 | 1992-04-07 | Yamaha Hatsudoki Kabushiki Kaisha | Automobile engine structure |
US5375568A (en) * | 1994-07-06 | 1994-12-27 | Manolis; John | Multivalve internal combustion engine |
US5570665A (en) * | 1995-04-04 | 1996-11-05 | Chrysler Corporation | Valve train for internal combustion engine |
US5638783A (en) * | 1995-12-26 | 1997-06-17 | Chrysler Corporation | Valve train for an internal combustion engine |
US5669344A (en) * | 1996-08-09 | 1997-09-23 | Chrysler Corporation | Sohc system with radial valves |
-
1997
- 1997-04-09 AT AT0060697A patent/AT410242B/de not_active IP Right Cessation
-
1998
- 1998-04-08 CN CN98801310A patent/CN1095027C/zh not_active Expired - Fee Related
- 1998-04-08 JP JP10542392A patent/JP2000513068A/ja active Pending
- 1998-04-08 WO PCT/EP1998/002034 patent/WO1998045579A1/de active IP Right Grant
- 1998-04-08 DE DE59806629T patent/DE59806629D1/de not_active Expired - Lifetime
- 1998-04-08 US US09/367,252 patent/US6205966B1/en not_active Expired - Fee Related
- 1998-04-08 EP EP98921441A patent/EP0974000B1/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DE59806629D1 (de) | 2003-01-23 |
WO1998045579A1 (de) | 1998-10-15 |
CN1095027C (zh) | 2002-11-27 |
AT410242B (de) | 2003-03-25 |
US6205966B1 (en) | 2001-03-27 |
CN1239532A (zh) | 1999-12-22 |
JP2000513068A (ja) | 2000-10-03 |
ATA60697A (de) | 2002-07-15 |
EP0974000A1 (de) | 2000-01-26 |
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