DE102009049219A1 - Internal combustion engine, has camshaft forming inner ring of rolling bearing and including annular groove and/or bead formed complement to body of bearing, where rolling body is formed in round and/or cylindrical shape matched with groove - Google Patents
Internal combustion engine, has camshaft forming inner ring of rolling bearing and including annular groove and/or bead formed complement to body of bearing, where rolling body is formed in round and/or cylindrical shape matched with groove Download PDFInfo
- Publication number
- DE102009049219A1 DE102009049219A1 DE200910049219 DE102009049219A DE102009049219A1 DE 102009049219 A1 DE102009049219 A1 DE 102009049219A1 DE 200910049219 DE200910049219 DE 200910049219 DE 102009049219 A DE102009049219 A DE 102009049219A DE 102009049219 A1 DE102009049219 A1 DE 102009049219A1
- Authority
- DE
- Germany
- Prior art keywords
- rolling
- bearing
- combustion engine
- internal combustion
- camshaft
- 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.)
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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
- F01L1/02—Valve drive
- F01L1/04—Valve drive by means of cams, camshafts, cam discs, eccentrics or the like
- F01L1/047—Camshafts
-
- 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
- F01L1/04—Valve drive by means of cams, camshafts, cam discs, eccentrics or the like
- F01L1/047—Camshafts
- F01L2001/0476—Camshaft bearings
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rolling Contact Bearings (AREA)
- Valve-Gear Or Valve Arrangements (AREA)
Abstract
Description
Die vorliegende Erfindung betrifft eine Brennkraftmaschine mit wenigstens einer Nockenwelle, die über zumindest ein Wälzlager gelagert ist.The present invention relates to an internal combustion engine having at least one camshaft which is mounted via at least one rolling bearing.
Wälzlager sind Lager, bei denen zwei zueinander bewegliche Komponenten, ein so genannter Innenring sowie ein Außenring durch rollende Körper voneinander getrennt sind. Sie dienen der Abstützung von radialen und axialen Kräften bei Achsen und Wellen und sollen dabei die durch Reibung entstehende Verlustleistung und den Verschleiß möglichst gering halten. Zwischen den drei Hauptkomponenten eines derartigen Wälzlagers, Innenring, Außenring und Wälzkörper tritt hauptsächlich Rollreibung auf, welche jedoch aufgrund von im Innen- und Außenring vorhandenen gehärteten Stahlflächen relativ gering ist. Derartige Wälzlager werden schon seit längerem auch zur Lagerung von Nockenwellen eingesetzt.Rolling bearings are bearings in which two mutually movable components, a so-called inner ring and an outer ring are separated by rolling bodies. They serve to support radial and axial forces in the case of axles and shafts and are intended to minimize the power loss and wear resulting from friction. Rolling friction mainly occurs between the three main components of such a roller bearing, inner ring, outer ring and rolling elements, which, however, is relatively low due to existing hardened steel surfaces in the inner and outer ring. Such rolling bearings have long been used for the storage of camshafts.
Die vorliegende Erfindung beschäftigt sich mit dem Problem, für ein Wälzlager zur Lagerung einer Nockenwelle in einer Brennkraftmaschine eine alternative Ausführungsform anzugeben.The present invention addresses the problem of providing an alternative embodiment for a rolling bearing for supporting a camshaft in an internal combustion engine.
Dieses Problem wird erfindungsgemäß durch den Gegenstand des unabhängigen Anspruchs 1 gelöst. Vorteilhafte Ausführungsformen sind Gegenstand der abhängigen Ansprüche.This problem is solved according to the invention by the subject matter of
Die vorliegende Erfindung beruht auf dem allgemeinen Gedanken, zur Lagerung einer Nockenwelle in einer Brennkraftmaschine ein Wälzlager vorzusehen, welches üblicherweise aus einem Innenring sowie einem Außenring und dazwischen angeordneten Wälzkörpern besteht, wobei im vorliegenden Fall die Nockenwelle einen Innenring/eine innere Lauffläche des wenigstens einen Wälzlagers bildet und zudem eine Ringnut und/oder einen Ringwulst aufweist, die/der komplementär zu einer Außenkontur der zugehörigen Wälzkörper des jeweiligen Wälzlagers ausgebildet ist. Ein derartiger Ringwulst bzw. eine derartige Ringnut ermöglicht somit eine Führung und gleichzeitig eine Halterung der Wälzkörper, so dass mit derartigen Wälzlagern nicht nur Radialkräfte, sondern theoretisch auch Axialkräfte abgetragen/übertragen werden können. Weist die Nockenwelle dabei erfindungsgemäß bspw. einen Ringwulst auf, so weisen die zugehörigen Wälzkörper eine komplementär dazu ausgebildete Ringnut auf, wobei das Zusammenwirken von nockenwellenseitigem Ringwulst und wälzkörperseitiger Ringnut die Möglichkeit der Aufnahme von Axialkräften eröffnet.The present invention is based on the general idea to provide for storage of a camshaft in an internal combustion engine, a rolling bearing, which usually consists of an inner ring and an outer ring and arranged therebetween rolling elements, in the present case, the camshaft an inner ring / inner raceway of the at least one rolling bearing forms and also has an annular groove and / or an annular bead, which is / is formed complementary to an outer contour of the associated rolling elements of the respective rolling bearing. Such an annular bead or such an annular groove thus allows a guide and at the same time a mounting of the rolling elements, so that not only radial forces, but theoretically also axial forces can be removed / transferred with such rolling bearings. If, in accordance with the invention, the camshaft has, for example, an annular bead, then the associated rolling elements have a complementary annular groove, the interaction of camshaft-side annular bead and rolling-body-side annular groove opening up the possibility of absorbing axial forces.
Bei einer vorteilhaften Weiterbildung der erfindungsgemäßen Lösung, weist der Außenring des Wälzlagers ebenfalls eine an die Wälzkörper angepasste Form auf. Eine Innenseite des Außenrings ist demgemäß bezüglich ihrer Form komplementär zur Form der Wälzkörper ausgebildet, wodurch ebenfalls sowohl eine Abtragung von Radialkräften als auch ein Abtragung von Axialkräften ermöglicht wird.In an advantageous development of the solution according to the invention, the outer ring of the rolling bearing also has a shape adapted to the rolling elements. An inside of the outer ring is accordingly formed with respect to their shape complementary to the shape of the rolling elements, which also both a removal of radial forces and a removal of axial forces is made possible.
Weitere wichtige Merkmale und Vorteile der Erfindung ergeben sich aus den Unteransprüchen, aus den Zeichnungen und aus der zugehörigen Figurenbeschreibung anhand der Zeichnungen.Other important features and advantages of the invention will become apparent from the dependent claims, from the drawings and from the associated figure description with reference to the drawings.
Es versteht sich, dass die vorstehend genannten und die nachstehend noch zu erläuternden Merkmale nicht nur in der jeweils angegebenen Kombination, sondern auch in anderen Kombinationen oder in Alleinstellung verwendbar sind, ohne den Rahmen der vorliegenden Erfindung zu verlassen.It is understood that the features mentioned above and those yet to be explained below can be used not only in the particular combination given, but also in other combinations or in isolation, without departing from the scope of the present invention.
Bevorzugte Ausführungsbeispiele der Erfindung sind in den Zeichnungen dargestellt und werden in der nachfolgenden Beschreibung näher erläutert, wobei sich gleiche Bezugszeichen auf gleiche oder ähnliche oder funktional gleiche Bauteile beziehen.Preferred embodiments of the invention are illustrated in the drawings and will be described in more detail in the following description, wherein like reference numerals refer to the same or similar or functionally identical components.
Dabei zeigen, jeweils schematisch,Show, in each case schematically,
Entsprechend den
Gemäß der
Gemäß der
In der rechten Darstellung der
Mit den erfindungsgemäßen Wälzlagern
Generell ist durch nicht gezeigte Klemmen eine Vorpositionierung der Wälzlager
Claims (8)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200910049219 DE102009049219A1 (en) | 2009-10-13 | 2009-10-13 | Internal combustion engine, has camshaft forming inner ring of rolling bearing and including annular groove and/or bead formed complement to body of bearing, where rolling body is formed in round and/or cylindrical shape matched with groove |
JP2010228993A JP2011085137A (en) | 2009-10-13 | 2010-10-08 | Internal combustion engine having at least one camshaft |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200910049219 DE102009049219A1 (en) | 2009-10-13 | 2009-10-13 | Internal combustion engine, has camshaft forming inner ring of rolling bearing and including annular groove and/or bead formed complement to body of bearing, where rolling body is formed in round and/or cylindrical shape matched with groove |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102009049219A1 true DE102009049219A1 (en) | 2011-04-28 |
Family
ID=43796688
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE200910049219 Withdrawn DE102009049219A1 (en) | 2009-10-13 | 2009-10-13 | Internal combustion engine, has camshaft forming inner ring of rolling bearing and including annular groove and/or bead formed complement to body of bearing, where rolling body is formed in round and/or cylindrical shape matched with groove |
Country Status (2)
Country | Link |
---|---|
JP (1) | JP2011085137A (en) |
DE (1) | DE102009049219A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2013037340A1 (en) * | 2011-08-17 | 2013-03-21 | Neumayer Tekfor Holding Gmbh | Shaft assembly |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108591249B (en) * | 2018-04-28 | 2020-08-14 | 南京航空航天大学 | Rolling bearing |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3803682A1 (en) * | 1988-02-07 | 1989-08-17 | Emitec Emissionstechnologie | METHOD FOR PRODUCING A BUILT SHAFT |
DE19844203A1 (en) * | 1998-09-26 | 2000-03-30 | Schaeffler Waelzlager Ohg | Two-part interlocking roller bearing pre-installed on automotive camshaft or crankshaft reduces assembly time |
DE102006004726A1 (en) * | 2006-02-02 | 2007-08-23 | Bayerische Motoren Werke Ag | Manufacturing method for built cam shaft, involves pushing bearing ring by divided assembly ring arranged between bearing ring and cylindrical staff neighboring to former cam onto the cylindrical staff |
EP1862695A1 (en) * | 2005-02-17 | 2007-12-05 | JTEKT Corporation | Shaft device |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH056104U (en) * | 1991-07-04 | 1993-01-29 | 光洋精工株式会社 | Camshaft support bearing device for internal combustion engine |
JP2997825B2 (en) * | 1991-11-28 | 2000-01-11 | 光洋精工株式会社 | Radial roller bearing |
JP2002060847A (en) * | 2000-08-22 | 2002-02-28 | Ntn Corp | Heat resistant carburized rolling bearing parts and method for producing the same |
US6505974B2 (en) * | 2001-05-02 | 2003-01-14 | Honeywell International, Inc. | Ceramic ball bearings and assembly |
JP2006226184A (en) * | 2005-02-17 | 2006-08-31 | Jtekt Corp | Camshaft device and its assembling method |
JP3126646U (en) * | 2006-08-23 | 2006-11-02 | オザック精工株式会社 | Rocker arm |
-
2009
- 2009-10-13 DE DE200910049219 patent/DE102009049219A1/en not_active Withdrawn
-
2010
- 2010-10-08 JP JP2010228993A patent/JP2011085137A/en active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3803682A1 (en) * | 1988-02-07 | 1989-08-17 | Emitec Emissionstechnologie | METHOD FOR PRODUCING A BUILT SHAFT |
DE19844203A1 (en) * | 1998-09-26 | 2000-03-30 | Schaeffler Waelzlager Ohg | Two-part interlocking roller bearing pre-installed on automotive camshaft or crankshaft reduces assembly time |
EP1862695A1 (en) * | 2005-02-17 | 2007-12-05 | JTEKT Corporation | Shaft device |
DE102006004726A1 (en) * | 2006-02-02 | 2007-08-23 | Bayerische Motoren Werke Ag | Manufacturing method for built cam shaft, involves pushing bearing ring by divided assembly ring arranged between bearing ring and cylindrical staff neighboring to former cam onto the cylindrical staff |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2013037340A1 (en) * | 2011-08-17 | 2013-03-21 | Neumayer Tekfor Holding Gmbh | Shaft assembly |
Also Published As
Publication number | Publication date |
---|---|
JP2011085137A (en) | 2011-04-28 |
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Legal Events
Date | Code | Title | Description |
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OM8 | Search report available as to paragraph 43 lit. 1 sentence 1 patent law | ||
R005 | Application deemed withdrawn due to failure to request examination |