DE3603106C1 - Connecting rod - Google Patents
Connecting rodInfo
- Publication number
- DE3603106C1 DE3603106C1 DE19863603106 DE3603106A DE3603106C1 DE 3603106 C1 DE3603106 C1 DE 3603106C1 DE 19863603106 DE19863603106 DE 19863603106 DE 3603106 A DE3603106 A DE 3603106A DE 3603106 C1 DE3603106 C1 DE 3603106C1
- Authority
- DE
- Germany
- Prior art keywords
- connecting rod
- oil
- pockets
- bushing
- rod bushing
- 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
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/02—Parts of sliding-contact bearings
- F16C33/04—Brasses; Bushes; Linings
- F16C33/06—Sliding surface mainly made of metal
- F16C33/10—Construction relative to lubrication
- F16C33/1025—Construction relative to lubrication with liquid, e.g. oil, as lubricant
- F16C33/106—Details of distribution or circulation inside the bearings, e.g. details of the bearing surfaces to affect flow or pressure of the liquid
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C9/00—Bearings for crankshafts or connecting-rods; Attachment of connecting-rods
- F16C9/04—Connecting-rod bearings; Attachments thereof
-
- 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
- F01M1/00—Pressure lubrication
- F01M1/08—Lubricating systems characterised by the provision therein of lubricant jetting means
- F01M2001/086—Lubricating systems characterised by the provision therein of lubricant jetting means for lubricating gudgeon pins
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
Description
Die Erfindung bezieht sich auf eine Pleuelstange für einen Kolbenmotor, bei der ein Kolbenbolzen in einer Pleuelbuchse eines Pleuelauges gelagert ist, welche zur Schmierung Ölzuführmittel hat.The invention relates to a connecting rod for a piston engine, in which a piston pin in a Connecting rod bushing of a connecting rod eye is mounted, which for Lubrication has oil feed.
Die für heutige Kraftfahrzeuge verwendeten Kolbenmotoren weisen Pleuelstangen dieser Art auf. Zur Schmierung der Pleuelbuchse im Pleuelauge ist meist in der Pleuelstange eine Bohrung vorgesehen, die zu einer Bohrung in der Pleuelbuchse führt. Diese Art der Ölzufuhr ist relativ aufwendig und führt zu einer noch nicht optimalen Schmie rung, insbesondere weil das Öl in einem Bereich in die Pleuelbuchse eintritt, der beim Aufwärtshub des Kolbens einer maximalen Belastung unterworfen ist.The piston engines used for today's motor vehicles have connecting rods of this type. To lubricate the The connecting rod bush in the connecting rod eye is usually in the connecting rod a hole is provided which leads to a hole in the Connecting rod bushing leads. This type of oil supply is relative complex and leads to a not yet optimal Schmie tion, especially because the oil is in an area in the Connecting rod bushing occurs during the upward stroke of the piston is subjected to a maximum load.
Durch die US-PS 38 01 173 ist es für das untere Pleuel lager bekannt, im Bereich der Trennfugen beider Lager schalen über die gesamte Breite der Lagerschalen verlau fende Schmiermittelnuten vorzusehen, in die jeweils eine Schmiermittelbohrung der Kurbelwelle mündet. Die Schmier mittelnuten, welche etwa 2 mm tief sind, verlaufen je weils in den Bereichen der Lagerschalen, welche kaum durch Kräfte beansprucht sind, so daß die dort fehlende Lager fläche sich nicht nachteilig auswirkt. Da die Lager schalen üblicherweise durch Anlaufscheiben axial fixiert sind, kann an den Stirnflächen der Lagerschalen kein oder nur wenig Öl aus den Schmiermittelnuten austreten.By US-PS 38 01 173 it is for the lower connecting rod known camp, in the area of the joints of both camps shells blue over the entire width of the bearing shells to provide lubricant grooves, one in each Lubricant hole in the crankshaft opens. The grease middle grooves, which are about 2 mm deep, each run because in the areas of the bearing shells, which hardly through Forces are used, so that there is no bearing area does not have an adverse effect. Because the camp shells usually fixed axially by thrust washers are not possible on the end faces of the bearing shells or only a little oil comes out of the lubricant grooves.
Der Erfindung liegt die Aufgabe zugrunde, eine Pleuel stange der eingangs genannten Art derart zu gestalten, daß mit möglichst geringem Aufwand eine optimale Schmie rung der Pleuelbuchse im Pleuelauge erreicht ist.The invention has for its object a connecting rod to design the rod of the type mentioned at the beginning, that with the least possible effort an optimal Schmie of the connecting rod bushing in the connecting rod eye is reached.
Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß die Ölzuführmittel Ölfangtaschen in Form von Aussparun gen in zumindest einer Stirnseite der Pleuelbuchse sind.This object is achieved in that the oil supply means oil pockets in the form of recess gene in at least one end face of the connecting rod bushing.
Durch diese erfindungsgemäße Gestaltung kann man auf Ölzuführbohrungen in der Pleuelstange und in der Pleuel buchse verzichten. Die Ölzufuhr erfolgt vielmehr mittels der Ölfangtaschen, die in der Lage sind, Spritzöl aus dem Kurbelwellengehäuse aufzufangen und bei kraftent lasteter Pleuelstange in den Kapillarspalt zwischen Kol benbolzen und Pleuelbuchse gelangen zu lassen. Dadurch wird mit geringem Aufwand eine wirkungsvolle und zuver lässig arbeitende Schmierung der Pleuelbuchse erreicht.With this design according to the invention one can Oil supply holes in the connecting rod and in the connecting rod do without the socket. The oil supply is rather by means of the oil trap bags that are capable of splashing oil out to catch the crankcase and at powerful loaded connecting rod in the capillary gap between col bolts and connecting rod bushing. Thereby becomes an effective and reliable with little effort casual lubrication of the connecting rod bushing achieved.
Das Öl in den Ölfangtaschen vermag im entlasteten Zu stand des oberen Pleuellagers in den dann klaffenden Kapillarspalt zwischen dem Kolbenbolzen und der Pleuel buchse zu gelangen. Durch das infolge wechselnder Be- und Entlastung wechselnde Spiel tritt eine Pumpwirkung ein, so daß eine wirkungsvolle Schmierung der Pleuel buchse sichergestellt ist.The oil in the oil catcher pockets can be relieved the upper connecting rod bearing stood in the gaping Capillary gap between the piston pin and the connecting rod socket to arrive. Due to the changing and relief changing game occurs a pumping action one, so that an effective lubrication of the connecting rods socket is ensured.
Vorteilhaft ist es, wenn an jeder Stirnseite der Pleuel buchse zwei Ölfangtaschen einander gegenüberliegend in einem rechten Winkel zur Längserstreckung der Pleuel stange angeordnet sind. Solche Ölfangtaschen liegen in kräftemäßig kaum beanspruchten Pleuelbuchsenbereichen, so daß sie ausreichend groß für eine gute Schmierung bemessen werden können, ohne daß die Lagerfläche in hochbeanspruchten Bereichen unzulässig klein wird. It is advantageous if the connecting rod is on each end face socket two oil catcher pockets opposite each other in a right angle to the longitudinal extension of the connecting rods rod are arranged. Such oil pockets are in connecting rod bushing areas that are hardly stressed in terms of force, making them big enough for good lubrication can be dimensioned without the storage area in heavily used areas becomes impermissibly small.
Das eingefangene Öl zieht durch Kapillarwirkung in die Fangtaschen hinein und wird dort festgehalten, wenn gemäß einer anderen Ausgestaltung der Erfindung die Ölfangtaschen in radialer Richtung eine eine Kapillar wirkung hervorrufende, sehr geringe Tiefe haben.The captured oil is drawn into the by capillary action Catch pockets in and be held there when according to another embodiment of the invention Oil collection pockets in the radial direction and a capillary have very shallow depth.
Als besonders wirkungsvoll hat sich eine Tiefe von etwa 0,15-0,05 mm erwiesen.A depth of approximately has proven to be particularly effective 0.15-0.05 mm.
Die übrigen Abmessungen der Ölfangtaschen sind optimal, wenn die Ölfangtaschen von beiden Seiten her etwa 3 mm in die Pleuelbuchse hineinreichen und jeweils etwa 8 mm breit sind.The other dimensions of the oil collecting bags are optimal, if the oil catcher pockets are about 3 mm from both sides extend into the connecting rod bushing and each about 8 mm are wide.
Statt über ihre Länge gleichmäßig tief, kann man die Ölfangtaschen auch sich zu den Stirnseiten der Pleuel buchse hin erweiternd ausbilden.Instead of being equally deep over their length, you can use the Oil trap pockets also extend to the front of the connecting rods Train the socket to expand.
Die Erfindung läßt zahlreiche Ausführungsformen zu. Zur weiteren Verdeutlichung ihres Grundprinzips sind zwei davon in der Zeichnung dargestellt und werden nachfol gend beschrieben. Die Zeichnung zeigt inThe invention allows numerous embodiments. To further clarification of their basic principle are two of which are shown in the drawing and will follow described below. The drawing shows in
Fig. 1 eine räumliche Darstellung des oberen Endes einer erfindungsgemäß gestalteten Pleuel- Stange, Fig. 1 is a perspective view of the upper end of a connecting rod according to the invention designed rod,
Fig. 2 eine Vorderansicht des oberen Endes einer zweiten Ausführungsform einer Pleuelstange gemäß der Erfindung, Fig. 2 is a front view of the upper end of a second embodiment of a connecting rod according to the invention,
Fig. 3 einen Vertikalschnitt durch eine Pleuel buchse der Pleuelstange gemäß Fig. 2, Fig. 3 is a vertical section through a connecting rod receptacle of the connecting rod according to Fig. 2,
Fig. 4 einen Horizontalschnitt durch eine Pleuel buchse der Pleuelstange gemäß Fig. 2. Fig. 4 is a horizontal section through a connecting rod receptacle of the connecting rod of FIG. 2.
Die Fig. 1 zeigt das obere Ende einer Pleuelstange 1 eines Kraftfahrzeugmotors. Zu sehen ist ein Pleuelauge 2, in welchem eine Pleuelbuchse 3 sitzt, die einen nicht gezeigten Kolbenbolzen lagert. In einem Winkel von 90 Grad zur Längserstreckung der Pleuelstange sind in bei den Stirnseiten der Pleuelbuchse 3 insgesamt vier Ölfang taschen in Form von Aussparungen vorgesehen, von denen drei Ölfangtaschen 4, 5, 6 zu sehen sind. Diese Ölfang taschen 4, 5, 6 haben in radialer Richtung eine Tiefe von 0,15-0,05 mm, sind 8 mm breit und reichen in axia ler Richtung etwa 3 mm in die Pleuelbuchse 3 hinein. Durch diese geringe Tiefe sind die Ölfangtaschen 4, 5, 6 auf Grund von Kapillarkräften in der Lage, eingefangenes Spritzöl zu halten und in den Spalt zwischen Kolbenbol zen und Pleuelbuchse schießen zu lassen, so oft sich die Pleuelstange 1 in einem unbelasteten Zustand befindet. Fig. 1 shows the upper end of a connecting rod 1 of a motor vehicle engine. A connecting rod eye 2 can be seen, in which a connecting rod bushing 3 is seated, which supports a piston pin (not shown). At an angle of 90 degrees to the longitudinal extension of the connecting rod, a total of four oil collecting pockets in the form of recesses are provided in the end faces of the connecting rod bushing 3 , three of which oil collecting pockets 4, 5, 6 can be seen. These oil pockets 4, 5, 6 have a depth of 0.15-0.05 mm in the radial direction, are 8 mm wide and extend in the axial direction about 3 mm into the connecting rod bushing 3 . Due to this shallow depth, the oil collecting pockets 4, 5, 6 are able, due to capillary forces, to hold captured spray oil and to shoot them into the gap between the piston pin and the connecting rod bushing as often as the connecting rod 1 is in an unloaded state.
Bei der Ausführungsform gemäß den Fig. 2, 3 und 4 sind, genau wie bei der zuvor beschriebenen Ausführungs form, in den Stirnseiten der Pleuelbuchse 3 Ölfang taschen vorgesehen, wobei die Fig. 4 alle vier Ölfang taschen 4, 5, 6, 7 zeigt. Zu erkennen ist jedoch, daß diese Ölfangtaschen 4 bis 7 von den Stirnseiten her schräg in die Pleuelbuchse 3 hineinführen. Die Ölfang taschen 4 bis 7 erweitern sich nach außen hin. Dadurch können sie besonders wirkungsvoll Spritzöl einfangen.In the embodiment according to FIGS. 2, 3 and 4, just like in the embodiment described above, 3 oil collecting pockets are provided in the end faces of the connecting rod bushing, FIG. 4 showing all four oil collecting pockets 4, 5, 6, 7 . However, it can be seen that these oil pockets 4 to 7 lead obliquely into the connecting rod bushing 3 from the end faces. The oil pockets 4 to 7 expand outwards. This enables them to capture spray oil particularly effectively.
Claims (6)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19863603106 DE3603106C1 (en) | 1986-02-01 | 1986-02-01 | Connecting rod |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19863603106 DE3603106C1 (en) | 1986-02-01 | 1986-02-01 | Connecting rod |
Publications (1)
Publication Number | Publication Date |
---|---|
DE3603106C1 true DE3603106C1 (en) | 1987-05-07 |
Family
ID=6293156
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19863603106 Expired DE3603106C1 (en) | 1986-02-01 | 1986-02-01 | Connecting rod |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE3603106C1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19647735C1 (en) * | 1996-11-19 | 1998-02-12 | Daimler Benz Ag | Device for lubricating small end of connecting rod of internal combustion engine |
FR2756882A1 (en) * | 1996-12-06 | 1998-06-12 | Renault | Bearing ring for little end of connecting rod in internal combustion engines for vehicle |
WO2018054524A1 (en) * | 2016-09-21 | 2018-03-29 | Mtu Friedrichshafen Gmbh | Engine of an internal combustion engine, internal combustion engine, and method for lubricating a piston and gudgeon pin bearing during operation of the engine |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3801173A (en) * | 1972-03-09 | 1974-04-02 | Kindree D Mc | Connecting rod insert bearing for internal combustion engines |
-
1986
- 1986-02-01 DE DE19863603106 patent/DE3603106C1/en not_active Expired
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3801173A (en) * | 1972-03-09 | 1974-04-02 | Kindree D Mc | Connecting rod insert bearing for internal combustion engines |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19647735C1 (en) * | 1996-11-19 | 1998-02-12 | Daimler Benz Ag | Device for lubricating small end of connecting rod of internal combustion engine |
FR2756007A1 (en) | 1996-11-19 | 1998-05-22 | Daimler Benz Ag | DEVICE FOR LUBRICATING A LITTLE EYE OF CONNECTING ROD |
FR2756882A1 (en) * | 1996-12-06 | 1998-06-12 | Renault | Bearing ring for little end of connecting rod in internal combustion engines for vehicle |
WO2018054524A1 (en) * | 2016-09-21 | 2018-03-29 | Mtu Friedrichshafen Gmbh | Engine of an internal combustion engine, internal combustion engine, and method for lubricating a piston and gudgeon pin bearing during operation of the engine |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8100 | Publication of the examined application without publication of unexamined application | ||
D1 | Grant (no unexamined application published) patent law 81 | ||
8364 | No opposition during term of opposition | ||
8320 | Willingness to grant licenses declared (paragraph 23) | ||
8339 | Ceased/non-payment of the annual fee |