EP0979929B1 - Moteur à piston à commande de soupape par culbuteur - Google Patents
Moteur à piston à commande de soupape par culbuteur Download PDFInfo
- Publication number
- EP0979929B1 EP0979929B1 EP98811260A EP98811260A EP0979929B1 EP 0979929 B1 EP0979929 B1 EP 0979929B1 EP 98811260 A EP98811260 A EP 98811260A EP 98811260 A EP98811260 A EP 98811260A EP 0979929 B1 EP0979929 B1 EP 0979929B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- camshaft
- reciprocating engine
- engine according
- cylinder head
- crankshaft
- 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
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B67/00—Engines characterised by the arrangement of auxiliary apparatus not being otherwise provided for, e.g. the apparatus having different functions; Driving auxiliary apparatus from engines, not otherwise provided for
- F02B67/04—Engines characterised by the arrangement of auxiliary apparatus not being otherwise provided for, e.g. the apparatus having different functions; Driving auxiliary apparatus from engines, not otherwise provided for of mechanically-driven auxiliary apparatus
- F02B67/06—Engines characterised by the arrangement of auxiliary apparatus not being otherwise provided for, e.g. the apparatus having different functions; Driving auxiliary apparatus from engines, not otherwise provided for of mechanically-driven auxiliary apparatus driven by means of chains, belts, or like endless members
-
- 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
-
- 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
- F01L1/022—Chain drive
-
- 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
- F01L1/024—Belt drive
-
- 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
- F01L1/181—Centre pivot rocking arms
-
- 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
- F01L1/026—Gear drive
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B2275/00—Other engines, components or details, not provided for in other groups of this subclass
- F02B2275/20—SOHC [Single overhead camshaft]
-
- 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
- F02F2001/244—Arrangement of valve stems in cylinder heads
- F02F2001/245—Arrangement of valve stems in cylinder heads the valve stems being orientated at an angle with the cylinder axis
Definitions
- the present invention describes a reciprocating piston engine with rocker arm valve control according to the generic term of Claim 1.
- the invention is exemplary a 2-cylinder in-line engine explained in more detail applies for reciprocating engines with any number of cylinders.
- valve controls e.g. according to Figure 1, the schematically four different valve controls, like them for example in the book Kraftfachtechnisches Taschenbuch Bosch "VDI-Verlag, 19th edition, to be described shows.
- a possible embodiment is that in Fig. 1, Figure 3, shown rocker arm valve control. That kind of Valve control is used particularly today in engines used where low friction and low Height in the foreground.
- a disadvantage of this design is the greatly increased effort for editing and Assembly of the valve train, the complex maintenance, as well as a increased space requirement in the longitudinal direction of the cylinders.
- GB-A-2 157 770 discloses one conventionally on rolls or plain bearing mounted camshaft, the invention this document on a decompression device for a motorcycle is aimed.
- DE-C-801 241 discloses a rotary adjustable Eccentric bushing around which an axially adjustable and rotatable hub of the rocker arm device engages.
- FIGS 2 to 5 schematically show parts of the drive a reciprocating piston engine according to the invention, with piston 1, of which only one is shown, which is on the connecting rod 2 attached and via the crank pin 3 with the crankshaft 4th are connected.
- a balance shaft 5 can be seen with sprocket 5K, one directly with the crankshaft connected chain wheel 6, a chain tensioning wheel 7 to the chain 8 to be able to tension the camshaft sprocket 9 drives, which enables the rotation of the camshaft 10, which in turn actuates the rocker arm 11, which the move indicated valves 19 along the valve axis 12.
- One in the embodiment as a so-called in-line engine has internal combustion engine shown in reciprocating piston design two parallel cylinders, not shown, in which the pistons 1 run up and down.
- the one below the cylinder arranged crankshaft 4 has two crank pins 3, each of which a connecting rod 2 is mounted.
- Each of the connecting rods is connected to a piston 1 in the respective cylinder runs up and down.
- the camshaft 10 is driven by a Camshaft sprocket 9, which is between the There are pairs of cams for the individual cylinders. in the Embodiment is this camshaft sprocket in the middle of the camshaft, but it can be in another version also offset from the center be arranged.
- the camshaft 10 is through the timing chain 8 on the Camshaft sprocket 9, the chain tensioning wheel 7, the counter-rotating balance shaft 5 with Balance shaft sprocket 5K and the crankshaft sprocket 6 driven by the crankshaft 4.
- a further possible execution of the camshaft drive includes a version with toothed belt and Toothed belt wheels instead of chain and chain wheels.
- Figures 6 and 7 illustrate the installation of the camshaft 10 and the Rocker arm 11 directly into the cast on the cylinder head 24 Recordings 15 and 16. This has the advantage of a very simple editing and a very simple assembly of the Camshaft and the rocker arm.
- Figures 6 and 7 show only cutouts from the cylinder head 24 and cylinder head cover 14, in which all the organs described are arranged.
- the assembly is shown below using the example of the camshaft 10 explained in more detail and the advantages listed in detail.
- the present invention must be the pre-cast Recordings 16 in the cylinder head 24 for the camshaft 10, the is a hollow shaft, only to the desired shaft size be drilled so that those with the inside Roller bearings 20 provided camshaft 10 between the Recorded 16 and the serving as an assembly shaft Camshaft axis 17 can be inserted.
- the Cylinder head cover 14 with the correspondingly machined Side surfaces 21 are used for lateral fixation of the Camshaft axis 17.
- rocker arm 11 are also designed as hollow shafts with roller bearings 22 and are placed between the receptacles 15 according to FIG. 7, whereupon the rocker arm axles serving as assembly shafts 13 inserted and through the side surfaces 23 on Cylinder head cover 14 are fixed.
- An advantage of the invention is therefore a very simple one Machining of the valve train and a very simple assembly the camshaft and the rocker arm.
- Another advantage of Invention is the use of roller bearings for storage of camshaft and rocker arms, which makes them very low Friction losses are made possible and no pressure oil supply is needed.
- Another great advantage of the invention is that none additional screw connection or other fastening of Bearing blocks is needed. Due to the special design of the cylinder head cover are no bearings in it needed. In addition, there are no interrupted ones Sealing surfaces between the cylinder head cover and the cylinder head and it becomes a very simple seal on the candle hole allows. Due to the possibility of the cylinder head cover to fix axes 13 and 17 is not necessary further securing the camshaft and the rocker arm required. The invention also makes maintenance like Valve clearance control and setting are significantly simplified and camshafts and rocker arms can be extremely simple be replaced.
- FIG. 8 shows a variant for the execution of the recordings, in particular the rocker arm shaft receptacles, the cylinder head shown in perspective is. It has been shown that certain models and heavy-duty castings for the Rocker arm shafts do not meet the requirements.
- the cast receptacles 15 according to Figure 7 can in this Cases according to the embodiment of Figure 8 by recordings 15A steel to be replaced in pairs and on Cylinder head 24 are screwed directly. The remaining Advantages like the cast recordings are complete maintained and the assembly of the rocker arm shafts takes place on the same way.
- the chain tensioning wheel 7 is in line with the Crankshaft sprocket 6 arranged so that both a sufficiently large wrap angle for all shafts than also a reversal of the direction of rotation for the balancer shaft 5 is achieved.
- the chain tensioning wheel 7 can be used to reduce the Friction on roller bearings and only on the spray oil the chain must be lubricated sufficiently.
- This measure of the invention also allows a very simple and compact construction of the valve train.
- Invention with toothed belt possible.
- the Sprockets replaced by toothed belt wheels.
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)
- Valve Device For Special Equipments (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Claims (10)
- Moteur à piston alternatif avec au moins un cylindre et avec commande des soupapes par culbuteur, comprenant des pistons (1) fixés à une bielle (2) et reliés par des manetons (3) à un vilebrequin (4), un arbre d'équilibrage (5) et un arbre à cames (10) entraíné par le vilebrequin (4) et entraínant à son tour des culbuteurs (11), lesdits organes étant agencés dans un carter muni d'une culasse (24) et d'un couvercle de culasse (14), caractérisé en ce que la culasse comprend des logements (16) directement intégrés pour la fixation d'un axe (17) non rotatif d'arbre à cames.
- Moteur alternatif selon la revendication 1, caractérisé en ce que la culasse (24) comprend des logements (15A) préfabriqués en acier et vissés sur la culasse pour la fixation d'un axe (13) non rotatif de culbuteur.
- Moteur alternatif selon la revendication 1 ou 2, caractérisé en ce que l'arbre à cames (10) et/ou les culbuteurs (11) est (sont) creux et comporte(nt) des paliers (20, 22) agencés intérieurement, et est (sont) supporté(s) sur un (des) axe(s) (17, 13) non rotatif(s) inséré(s) dans l'arbre à cames (10) resp. dans les culbuteurs (11).
- Moteur alternatif selon la revendication 3, caractérisé en ce que les paliers (20, 22) de l'arbre à cames resp. des culbuteurs sont des roulements à rouleaux ou des paliers lisses.
- Moteur alternatif selon la revendication 1, caractérisé en ce que les logements (16) sont coulés d'une pièce avec la culasse (24).
- Moteur alternatif selon l'une des revendications 1 à 5, caractérisé en ce que le couvercle de culasse (14) présente des faces latérales (21) servant au positionnement et à la retenue de l'arbre à cames (10) et de l'axe (17) d'arbre à cames y associé.
- Moteur alternatif selon l'une des revendications 1 à 6, caractérisé en ce que le couvercle de culasse (14) présente des faces latérales (23) servant au positionnement et à la retenue des culbuteurs (11) et des axes (13) de culbuteur y associés.
- Moteur alternatif selon l'une des revendications 1 à 7, l'arbre à cames (10) étant entraíné en rotation par des moyens d'entraínement (8) mobiles qui sont entraínés par une roue d'entraínement (6) directement reliée au vilebrequin et comprennent un tendeur (7) permettant de tendre lesdits moyens d'entraínement (8), caractérisé en ce que l'arbre à cames (10), le tendeur (7) et l'arbre d'équilibrage (5) en rotation inverse sont entraínés par le vilebrequin (4) par l'intermédiaire d'une seule chaíne (8) ou d'une seule courroie crantée en ligne avec le vilebrequin.
- Moteur alternatif selon la revendication 8, caractérisé en ce que le tendeur (7) disposé en ligne avec la roue d'entraínement (6) du vilebrequin est agencé de telle manière qu'il en résulte un angle de contact suffisant pour tous les arbres et en même temps une inversion de la direction de rotation de l'arbre d'équilibrage (5).
- Moteur alternatif selon la revendication 8, caractérisé en ce que le tendeur de chaíne (7) est monté sur roulements à rouleaux pour une friction réduite et suffisamment lubrifié par l'huile projetée par la chaíne.
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP98811260A EP0979929B1 (fr) | 1998-08-11 | 1998-12-23 | Moteur à piston à commande de soupape par culbuteur |
PCT/EP1999/005714 WO2000009864A1 (fr) | 1998-08-11 | 1999-08-06 | Moteur a pistons a commande de soupapes par culbuteurs |
JP2000565279A JP2002522700A (ja) | 1998-08-11 | 1999-08-06 | ロッカバルブ装置を備えた往復動エンジン |
US09/762,784 US6520133B1 (en) | 1998-08-11 | 1999-08-06 | Reciprocating engine with rocker-arm valve control |
BR9912940-0A BR9912940A (pt) | 1998-08-11 | 1999-08-06 | Motor de êmbolo de levantamento com comando de válvula de balancim |
AU55113/99A AU5511399A (en) | 1998-08-11 | 1999-08-06 | Reciprocating engine with rocker-arm valve control |
US10/339,722 US6951196B2 (en) | 1998-08-11 | 2003-01-09 | Reciprocating engine with rocker valve gear |
US10/339,721 US20030098002A1 (en) | 1998-08-11 | 2003-01-09 | Reciprocating engine with rocker valve gear |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP98115057A EP0979928A1 (fr) | 1998-08-11 | 1998-08-11 | Moteur à combustion interne avec entrainement des soupapes avec culbuteurs |
EP98115057 | 1998-08-11 | ||
EP98811260A EP0979929B1 (fr) | 1998-08-11 | 1998-12-23 | Moteur à piston à commande de soupape par culbuteur |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0979929A2 EP0979929A2 (fr) | 2000-02-16 |
EP0979929A3 EP0979929A3 (fr) | 2000-09-06 |
EP0979929B1 true EP0979929B1 (fr) | 2004-12-15 |
Family
ID=26149522
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98811260A Expired - Lifetime EP0979929B1 (fr) | 1998-08-11 | 1998-12-23 | Moteur à piston à commande de soupape par culbuteur |
Country Status (6)
Country | Link |
---|---|
US (3) | US6520133B1 (fr) |
EP (1) | EP0979929B1 (fr) |
JP (1) | JP2002522700A (fr) |
AU (1) | AU5511399A (fr) |
BR (1) | BR9912940A (fr) |
WO (1) | WO2000009864A1 (fr) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20030072018A (ko) * | 2002-03-05 | 2003-09-13 | 지엠대우오토앤테크놀로지주식회사 | 자동차용 로커암 샤프트의 완충구조 |
JP4754276B2 (ja) * | 2005-06-17 | 2011-08-24 | 川崎重工業株式会社 | 自動二輪車 |
JP2007127057A (ja) * | 2005-11-04 | 2007-05-24 | Mikuni Corp | バルブタイミング調整装置の取付構造 |
EP2308708B1 (fr) | 2009-09-16 | 2016-08-17 | swissauto powersport llc | Véhicule électrique doté d'un allongement du rayon d'action |
US9187083B2 (en) | 2009-09-16 | 2015-11-17 | Polaris Industries Inc. | System and method for charging an on-board battery of an electric vehicle |
US10300786B2 (en) | 2014-12-19 | 2019-05-28 | Polaris Industries Inc. | Utility vehicle |
AU2017284964B2 (en) | 2016-06-14 | 2020-07-02 | Polaris Industries, Inc. | Hybrid utility vehicle |
EP3596316B1 (fr) | 2017-03-16 | 2023-10-04 | Cummins Inc. | Système suspendu de support de cames, monté sur bloc, pour moteurs à combustion interne |
US10780770B2 (en) | 2018-10-05 | 2020-09-22 | Polaris Industries Inc. | Hybrid utility vehicle |
US11370266B2 (en) | 2019-05-16 | 2022-06-28 | Polaris Industries Inc. | Hybrid utility vehicle |
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-
1998
- 1998-12-23 EP EP98811260A patent/EP0979929B1/fr not_active Expired - Lifetime
-
1999
- 1999-08-06 WO PCT/EP1999/005714 patent/WO2000009864A1/fr active Application Filing
- 1999-08-06 AU AU55113/99A patent/AU5511399A/en not_active Abandoned
- 1999-08-06 JP JP2000565279A patent/JP2002522700A/ja active Pending
- 1999-08-06 US US09/762,784 patent/US6520133B1/en not_active Expired - Fee Related
- 1999-08-06 BR BR9912940-0A patent/BR9912940A/pt not_active IP Right Cessation
-
2003
- 2003-01-09 US US10/339,722 patent/US6951196B2/en not_active Expired - Fee Related
- 2003-01-09 US US10/339,721 patent/US20030098002A1/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
EP0979929A3 (fr) | 2000-09-06 |
JP2002522700A (ja) | 2002-07-23 |
BR9912940A (pt) | 2001-05-08 |
US6951196B2 (en) | 2005-10-04 |
AU5511399A (en) | 2000-03-06 |
EP0979929A2 (fr) | 2000-02-16 |
US20030098002A1 (en) | 2003-05-29 |
WO2000009864A1 (fr) | 2000-02-24 |
US20030098003A1 (en) | 2003-05-29 |
US6520133B1 (en) | 2003-02-18 |
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