DE102004046064A1 - Piston rod for internal-combustion engine, has internal thread engaging with screw thread of connecting bolts that are located near piston rod shaft and arranged in discharge area of shaft, in which bolts extend inside - Google Patents
Piston rod for internal-combustion engine, has internal thread engaging with screw thread of connecting bolts that are located near piston rod shaft and arranged in discharge area of shaft, in which bolts extend inside Download PDFInfo
- Publication number
- DE102004046064A1 DE102004046064A1 DE200410046064 DE102004046064A DE102004046064A1 DE 102004046064 A1 DE102004046064 A1 DE 102004046064A1 DE 200410046064 DE200410046064 DE 200410046064 DE 102004046064 A DE102004046064 A DE 102004046064A DE 102004046064 A1 DE102004046064 A1 DE 102004046064A1
- Authority
- DE
- Germany
- Prior art keywords
- connecting rod
- shaft
- piston rod
- discharge area
- combustion engine
- 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.)
- Withdrawn
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
- F16C7/00—Connecting-rods or like links pivoted at both ends; Construction of connecting-rod heads
- F16C7/02—Constructions of connecting-rods with constant length
- F16C7/023—Constructions of connecting-rods with constant length for piston engines, pumps or the like
-
- 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)
Abstract
Description
Die Erfindung betrifft ein Pleuel für eine Brennkraftmaschine nach der im Oberbegriff von Anspruch 1 näher definierten Art. Des weiteren betrifft die Erfindung eine Brennkraftmaschine.The The invention relates to a connecting rod for an internal combustion engine according to the closer defined in the preamble of claim 1 Art. Furthermore, the invention relates to an internal combustion engine.
Ein
gattungsgemäßes Pleuel
ist aus der
Üblicherweise liegt bei schräg geteilten Pleueln das Muttergewinde, mit dem die der Pleuelstange näher liegende Verbindungsschraube in Eingriff ist, innerhalb des Pleuelschaftes, und zwar in einem Bereich zwischen dem großen und dem kleinen Auge. Gerade in diesem Bereich ergibt sich jedoch während des Betriebs einer mit einem solchen Pleuel ausgestatteten Brennkraftmaschine ein sehr hoher Kraftfluss, der zu starken Verformungen im Bereich des Gewindes und damit zu einem stärkeren Setzen der Verschraubung in dem Gewinde und zu einer sehr hohen Beanspruchung der Verbindungsschraube führt.Usually is at an angle split connecting rods the nut thread with which the connecting rod closer Connecting screw is engaged, within the connecting rod shank, in a region between the big and the small eye. Just However, in this area there is one during operation Such a connecting rod equipped internal combustion engine a very high power flow, which leads to strong deformations in the area of the thread and thus to a stronger one Put the screw in the thread and to a very high Stress of the connecting screw leads.
Es ist daher Aufgabe der vorliegenden Erfindung, ein Pleuel für eine Brennkraftmaschine zu schaffen, bei dem die Gewindeverbindung der die beiden Teile des großen Auges miteinander verbindenden Verbindungsschraube weniger starken Beanspruchungen ausgesetzt ist.It is therefore an object of the present invention, a connecting rod for an internal combustion engine to create in which the threaded connection of the two parts of the big one Eye connecting connecting screw less strong Exposed to stress.
Erfindungsgemäß wird diese Aufgabe durch die in Anspruch 1 genannten Merkmale gelöst.According to the invention this Problem solved by the features mentioned in claim 1.
Durch das Verlegen des Muttergewindes in einen Entlastungsbereich des Pleuelschaftes kann die Beanspruchung sowohl des Mutter- als auch des Schraubengewindes erheblich reduziert werden, da sich die Verbindung des Schrauben- mit dem Muttergewinde auf diese Weise in einem bezüglich der während des Betriebs einer mit einem erfindungsgemäßen Pleuel ausgestatteten Brennkraftmaschine auftretenden Belastungen spannungsarmen Bereich befindet. Durch den Entlastungsbereich wird der Kraftfluss zwischen dem großen und dem kleinen Auge umgelenkt, und es wird das Auftreten von Spannungsspitzen verhindert.By laying the nut thread in a relief area of the Connecting rod shaft can be the stress of both the mother and The screw thread can be significantly reduced, since the connection the screw with the nut thread in this way in a respect to during the Operating an engine equipped with a connecting rod according to the invention occurring Strains low-voltage area is located. Through the relief area the power flow is redirected between the big and the small eye, and it prevents the occurrence of voltage spikes.
In einer bezüglich der Anzahl der verwendeten Teile sehr vorteilhaften Ausführungsform der Erfindung kann vorgesehen sein, dass sich das Muttergewinde in einem sich in den Entlastungsbereich hinein erstreckenden Vorsprung des Pleuelschaftes angeordnet ist.In a respect the number of parts used very advantageous embodiment The invention may be provided that the nut thread in a protrusion extending into the relief area of the connecting rod shaft is arranged.
Alternativ dazu ist es auch möglich, dass die Verbindungsschraube mit einer das Muttergewinde aufweisenden, in dem Entlastungsbereich angeordneten Mutter verschraubt ist. Bei einer solchen Ausführung kann bei der Herstellung des Pleuels auf die Erzeugung des Vorsprungs verzichtet werden. Ein weiterer Vorteil einer derartigen Lösung besteht darin, dass sich in dem Pleuelschaft keine Zugspannungen aufgrund eines geschnittenen Gewindes ergeben können.alternative it is also possible in that the connecting screw has a female thread, is arranged screwed in the discharge region arranged nut. at such an execution can in the production of the connecting rod on the generation of the projection be waived. Another advantage of such a solution exists in that there are no tensile stresses in the connecting rod shaft due to can result in a cut thread.
Eine Brennkraftmaschine mit einer Kurbelwelle und mit wenigstens einem mittels eines erfindungsgemäßen Pleuels mit der Kurbelwelle verbundenen Kolben ist in Anspruch 6 angegeben.A Internal combustion engine with a crankshaft and at least one by means of a connecting rod according to the invention Piston connected to the crankshaft is specified in claim 6.
Weitere vorteilhafte Ausgestaltungen und Weiterbildungen der Erfindung ergeben sich aus den restlichen Unteransprüchen. Nachfolgend sind Ausführungsbeispiele der Erfindung anhand der Zeichnung prinzipmäßig beschrieben.Further yield advantageous embodiments and refinements of the invention from the remaining subclaims. Below are exemplary embodiments the invention described in principle with reference to the drawing.
Es zeigt:It shows:
Ein
in
Das
große
Auge
Der
Pleuelschaft
Durch
den Entlastungsbereich
Bei
der in
Das
Pleuel
Claims (6)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200410046064 DE102004046064A1 (en) | 2004-09-23 | 2004-09-23 | Piston rod for internal-combustion engine, has internal thread engaging with screw thread of connecting bolts that are located near piston rod shaft and arranged in discharge area of shaft, in which bolts extend inside |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200410046064 DE102004046064A1 (en) | 2004-09-23 | 2004-09-23 | Piston rod for internal-combustion engine, has internal thread engaging with screw thread of connecting bolts that are located near piston rod shaft and arranged in discharge area of shaft, in which bolts extend inside |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102004046064A1 true DE102004046064A1 (en) | 2006-04-20 |
Family
ID=36120301
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE200410046064 Withdrawn DE102004046064A1 (en) | 2004-09-23 | 2004-09-23 | Piston rod for internal-combustion engine, has internal thread engaging with screw thread of connecting bolts that are located near piston rod shaft and arranged in discharge area of shaft, in which bolts extend inside |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE102004046064A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102009036442A1 (en) | 2009-08-06 | 2011-02-10 | Daimler Ag | Connecting rod for internal-combustion engine, has two section-wise blind holes that comprise internal threads and are formed in rod, where semicircular base holes are rounded at ends of blind holes |
US8371263B2 (en) | 2009-03-31 | 2013-02-12 | Dresser, Inc. | Connecting rod |
-
2004
- 2004-09-23 DE DE200410046064 patent/DE102004046064A1/en not_active Withdrawn
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8371263B2 (en) | 2009-03-31 | 2013-02-12 | Dresser, Inc. | Connecting rod |
DE102009036442A1 (en) | 2009-08-06 | 2011-02-10 | Daimler Ag | Connecting rod for internal-combustion engine, has two section-wise blind holes that comprise internal threads and are formed in rod, where semicircular base holes are rounded at ends of blind holes |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OR8 | Request for search as to paragraph 43 lit. 1 sentence 1 patent law | ||
8105 | Search report available | ||
8127 | New person/name/address of the applicant |
Owner name: DAIMLERCHRYSLER AG, 70327 STUTTGART, DE |
|
8127 | New person/name/address of the applicant |
Owner name: DAIMLER AG, 70327 STUTTGART, DE |
|
8120 | Willingness to grant licenses paragraph 23 | ||
8139 | Disposal/non-payment of the annual fee |