DE2238384A1 - CONNECTING RODS FOR COMBUSTION MACHINES - Google Patents

CONNECTING RODS FOR COMBUSTION MACHINES

Info

Publication number
DE2238384A1
DE2238384A1 DE19722238384 DE2238384A DE2238384A1 DE 2238384 A1 DE2238384 A1 DE 2238384A1 DE 19722238384 DE19722238384 DE 19722238384 DE 2238384 A DE2238384 A DE 2238384A DE 2238384 A1 DE2238384 A1 DE 2238384A1
Authority
DE
Germany
Prior art keywords
connecting rod
crank pin
connecting rods
crankshaft
crank
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.)
Pending
Application number
DE19722238384
Other languages
German (de)
Inventor
Ferdinand Dipl Ing Piech
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dr Ing HCF Porsche AG
Original Assignee
Dr Ing HCF Porsche AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Dr Ing HCF Porsche AG filed Critical Dr Ing HCF Porsche AG
Priority to DE19722238384 priority Critical patent/DE2238384A1/en
Publication of DE2238384A1 publication Critical patent/DE2238384A1/en
Pending legal-status Critical Current

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
    • F16C17/00—Sliding-contact bearings for exclusively rotary movement
    • F16C17/10—Sliding-contact bearings for exclusively rotary movement for both radial and axial load
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)

Description

Pleuel für Brennkraftmaschinen Die Erfindung betrifft ein Pleuel für Brennkraftmaschinen, das auf dem Kurbelzapfen einer Kurbelwelle gelagert ist. Connecting rods for internal combustion engines The invention relates to a connecting rod for internal combustion engines, which is mounted on the crank pin of a crankshaft.

Es sind Pleuel für Brennkraftmaschinen bekannt (deutsche Patentschrift 619 956), die auf Kurbelzapfen einer Kurbelwelle gelagert sind, wobei die Flächen der Kurbelzapfen und die die Kurbelzapfen aufnehmenden Flächen der Pleuel zylindrisch ausgebildet sind. Diese Art der Lagerung ist für die Festigkeit der Pleuel und. der Kurbelwelle im Bereich der Kurbelzapfen, insbesondere bei hochbelasteten Kurbeltrieben, nachteilig und rührt zu Brüchen. There are known connecting rods for internal combustion engines (German patent specification 619 956), which are mounted on the crank pin of a crankshaft, with the surfaces the crank pin and the surfaces of the connecting rod receiving the crank pin are cylindrical are trained. This type of storage is for the strength of the connecting rods and. the crankshaft in the area of the crank pin, especially with highly loaded crank drives, disadvantageous and leads to fractures.

Der Erfindung liegt demgegenüber die Aufgabe zugrunde, ohne wesentliche größere Kosten die Bruchgefahr der Teile des Kurbeltriebes im Bereich des Kurbelzapfens zu vermindern. In contrast, the invention is based on the object without essential higher costs, the risk of breakage of the parts of the crank mechanism in the area of the crank pin to diminish.

Diese Aufgabe wird erfindungsgemäß-dadurch gelöst, daß die Fläche des Kurbelzapfens und die mit dem Kurbelzapfen zusammenwirkenden Flächen des Pleuels kurvenförmig ausgebildet sind. This object is achieved according to the invention in that the surface of the crank pin and the surfaces of the connecting rod that interact with the crank pin are curved.

Vorteilhaft ist, daß diese Flächen hyperbolisch ausgebildet sind.It is advantageous that these surfaces are designed to be hyperbolic.

Die mit der Erfindung erzielten Vorteile bestehen insbesondere darin, daß eine weitgehend kerbfreie Übergangszone sowohl am Kurbelzapfen als auch am Pleuel erhalten wird. Insbesondere durch die hyperbolische Ausbildung der Fläche des Kurbelzapfens und die mit dem Kurbelzapfen zusammenwirkende Fläche des- Pleuels kann das erfindungsgemäße Pleuel höchsten Belastungen ausgesetzt werden, ohne daß eine wesentliche Bruchgefahr der Teile des Kurbeltriebes im Bereich des Kurbelzapfens besteht. The advantages achieved with the invention are in particular: that a largely notch-free transition zone both on the crank pin and on the connecting rod is obtained. In particular due to the hyperbolic design of the surface of the crank pin and the surface of the connecting rod that interacts with the crank pin can be that of the invention Connecting rods are exposed to the highest loads without a significant risk of breakage the parts of the crank mechanism in the area of the crank pin.

In der Zeichnung ist ein erfindungsgemäßes Pleuel im Querschnitt dargestellt, das auf dem Kurbelzapfen einer Kurbelwelle gelagert ist. In the drawing, a connecting rod according to the invention is in cross section shown, which is mounted on the crank pin of a crankshaft.

Das Pleuel besteht aus einem Pleuelschaft 1 mit einem Pleuelfuß 2 und einem Pleuellagerdeckel 3. Die Flächen 4 und 5 des Pleuelfusses 2 bzw. des Pleueldeckels 3 wirken mit den Pleuellagerschalen 6 und 7 zusammen, deren Flächen 8 und 9 die Lagerflächen für den Kurbelzapfen 10 der Kurbelwelle 11 bilden, wobei die Flächen 4, 5, 8 und 9 sowie die mit den Flächen 8 und 9 zusammenarbeitenden Flächen 12 des Kurbelzapfens kurvenförmig, vorzugsweise hyperbolisch ausgebildet sind. The connecting rod consists of a connecting rod shaft 1 with a connecting rod foot 2 and a connecting rod bearing cap 3. The surfaces 4 and 5 of the connecting rod 2 and of the connecting rod cap, respectively 3 cooperate with the connecting rod bearing shells 6 and 7, the surfaces 8 and 9 of which Form bearing surfaces for the crank pin 10 of the crankshaft 11, the surfaces 4, 5, 8 and 9 as well as the surfaces 12 of the cooperating with the surfaces 8 and 9 The crank pin are curved, preferably hyperbolic.

Durch die kurvenförmige Ausgestaltung der Lagerflächen ist die Kerbwirkung vermindert, wodurch die Festigkeit der Teile des Kurbeltriebes erhöht wird. Daraus ergeben sich vorteilhafte Möglichkeiten für eine günstigere Ausbildung und Bemessung des Pleuels und der Kurbelwelle, so daß auch die Baulänge und das Gewicht der Teile vermindert werden kann. The notch effect is due to the curved design of the bearing surfaces reduced, whereby the strength of the parts of the crank mechanism is increased. From it there are advantageous possibilities for a more favorable training and dimensioning of the connecting rod and the crankshaft, so that the length and weight of the parts can be reduced.

Claims (2)

SchutzrechtsansprücheProperty right claims 1. Pleuel für Brennkraftmaschine, das auf dem Kurbelzapfen einer Kurbelwelle gelagert ist, dadurch gekennzeichnet, daß die Fläche (12) des Kurbelzapfens (10) und die mit dem Kurbelzapfen (10) zusammenwirkenden Flächen (8 und 9) der Pleuellagerschalen (6 und 7) kurvenförmig ausgebildet sind. 1. Connecting rod for internal combustion engine that is on the crank pin of a Crankshaft is mounted, characterized in that the surface (12) of the crank pin (10) and with the crank pin (10) interacting surfaces (8 and 9) of the connecting rod bearing shells (6 and 7) are curved. 2. Pleuel nach Anspruch 1, dadurch gekennzeichnet, daß die Flächen (8, 9 und 12) hyperbolisch ausgebildet sind. 2. Connecting rod according to claim 1, characterized in that the surfaces (8, 9 and 12) are hyperbolic. LeerseiteBlank page
DE19722238384 1972-08-04 1972-08-04 CONNECTING RODS FOR COMBUSTION MACHINES Pending DE2238384A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19722238384 DE2238384A1 (en) 1972-08-04 1972-08-04 CONNECTING RODS FOR COMBUSTION MACHINES

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19722238384 DE2238384A1 (en) 1972-08-04 1972-08-04 CONNECTING RODS FOR COMBUSTION MACHINES

Publications (1)

Publication Number Publication Date
DE2238384A1 true DE2238384A1 (en) 1974-02-14

Family

ID=5852645

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19722238384 Pending DE2238384A1 (en) 1972-08-04 1972-08-04 CONNECTING RODS FOR COMBUSTION MACHINES

Country Status (1)

Country Link
DE (1) DE2238384A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0457050A1 (en) * 1990-05-15 1991-11-21 Audi Ag Bearing for connecting rod

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0457050A1 (en) * 1990-05-15 1991-11-21 Audi Ag Bearing for connecting rod

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