WO2010094598A1 - Brennkraftmaschine mit wenigstens einer nockenwelle - Google Patents
Brennkraftmaschine mit wenigstens einer nockenwelle Download PDFInfo
- Publication number
- WO2010094598A1 WO2010094598A1 PCT/EP2010/051610 EP2010051610W WO2010094598A1 WO 2010094598 A1 WO2010094598 A1 WO 2010094598A1 EP 2010051610 W EP2010051610 W EP 2010051610W WO 2010094598 A1 WO2010094598 A1 WO 2010094598A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- bearings
- camshaft
- internal combustion
- combustion engine
- bearing
- 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.)
- Ceased
Links
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
- 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
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/22—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings
- F16C19/44—Needle bearings
- F16C19/46—Needle bearings with one row or needles
- F16C19/466—Needle bearings with one row or needles comprising needle rollers and an outer ring, i.e. subunit without inner ring
-
- 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
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/54—Systems consisting of a plurality of bearings with rolling friction
- F16C19/56—Systems consisting of a plurality of bearings with rolling friction in which the rolling bodies of one bearing differ in diameter from those of another
-
- 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
- F16C41/00—Other accessories, e.g. devices integrated in the bearing not relating to the bearing function as such
- F16C41/008—Identification means, e.g. markings, RFID-tags; Data transfer means
-
- 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
-
- 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
- F16C2360/00—Engines or pumps
- F16C2360/18—Camshafts
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49229—Prime mover or fluid pump making
- Y10T29/49293—Camshaft making
Definitions
- the present invention relates to an internal combustion engine with at least one camshaft.
- Camshafts are part of a so-called valve train in internal combustion engines and are usually used to open and close intake and exhaust valves according to design-related timing.
- Such camshafts are usually stored on so-called rolling bearings, which consist of at least one ring with rotatably mounted therein rolling elements.
- rolling bearings which consist of at least one ring with rotatably mounted therein rolling elements.
- usually identical bearings are used at all bearings of the camshaft, but this is disadvantageous in terms of weight and cost, since in this case all bearings must be designed for the maximum loads occurring.
- the present invention is concerned with the problem of providing for an internal combustion engine with a camshaft an improved embodiment, which is to be realized in particular less expensive and with less weight.
- the present invention is based on the general idea not to use identical bearings for storing a camshaft in an internal combustion engine, as was customary at all bearings, but rather the individual bearings individually form and in particular with regard to their load capacity to adapt to the loads actually occurring at the respective bearing point during operation of the internal combustion engine.
- the loads for a bearing on a sprocket of the camshaft are comparatively high, while they are often comparatively low in a central region of the camshaft.
- a more stable or load bearing must now be used in the area of the sprocket, while in the less loaded area a comparatively lighter and in particular more cost-effective bearing can be used.
- the individual adaptation of the individual bearings makes it possible, in particular, to reduce a total weight of all the bearings used, which has a favorable effect on fuel consumption and thus also on a CO 2 emission of the internal combustion engine. At the same time, the lighter bearings can be produced more cheaply, whereby a reduction in manufacturing costs can be achieved.
- a color marking is attached to the camshaft and to a respective bearing, which allows or simplifies an assignment of the respective bearing to an installation location on the camshaft. Since in contrast to the previously used and identically constructed bearing now for trouble-free operation of the camshaft a proper, especially correct position, installing the respective bearing is absolutely necessary, must be reliably excluded in the production that, for example, a light bearing in the range of high Load, eg. In the range of the sprocket, is installed and there due to the high loads wear comparatively quickly and must be replaced accordingly quickly.
- the color markings on the camshaft and on the associated bearings thereby facilitate an assembly worker the correct insertion or the correct arrangement of the respective bearing on the camshaft, so that this example. Only one red installed bearing must also be installed at a point marked red in the camshaft. By means of such a color marking, an error rate during installation of the bearings according to the invention can preferably be reduced to zero.
- Fig. 2 is a sectional view through different embodiments of bearings according to the invention.
- a camshaft 1 for an otherwise not shown internal combustion engine at least two bearings 2 and 2 ', which may be formed, for example, as a roller bearing, and via which the camshaft 1 is mounted in the internal combustion engine. Also indicated are an on the Camshaft 1 arranged cam 3 and a longitudinal end of the camshaft
- the individual bearings 2, 2 ' of which according to FIG. 1, only two are shown, individually formed and adapted in terms of their load capacity to the actual occurring during operation of the internal combustion engine at the respective bearing loads.
- the load of the camshaft 1 is significantly higher than, for example, in a central region, so that according to FIG. 1 and according to the invention, the bearing 2 'stronger, more resilient and heavier than the bearing 2.
- the inventive individual and load-adapted design of the individual bearings 2, 2 'need not be designed as previously with the use of identical bearings all bearings to a maximum load, but it can be used in particular at low load points smaller, lighter and / or cheaper bearings 2.
- the individual bearings 2, 2 ' may differ, for example, in a different number of rolling elements 5, as shown, for example, in the three bearings 2, 2' shown by way of example in FIG. 2.
- the individual bearings 2, 2 ' can also differ with respect to the diameter of the individual rolling elements 5, wherein, according to FIG. 2, the rolling elements 5 of the bearing 2 drawn in the middle have a significantly smaller diameter than, for example, the rolling elements 5 of the one in the right Presentation drawn warehouse 2 '.
- a different number of rolling elements 5 are provided, so that, for example, the bearing 2 in the left-hand illustration of FIG.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Valve-Gear Or Valve Arrangements (AREA)
Abstract
Description
Claims
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US13/202,237 US20120012075A1 (en) | 2009-02-19 | 2010-02-10 | Internal combustion engine comprising at least one camshaft |
| JP2011550518A JP2012518121A (ja) | 2009-02-19 | 2010-02-10 | 少なくとも1本のカムシャフトを備えた内燃機関 |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102009009665A DE102009009665A1 (de) | 2009-02-19 | 2009-02-19 | Brennkraftmaschine mit wenigstens einer Nockenwelle |
| DE102009009665.5 | 2009-02-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2010094598A1 true WO2010094598A1 (de) | 2010-08-26 |
Family
ID=42126086
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2010/051610 Ceased WO2010094598A1 (de) | 2009-02-19 | 2010-02-10 | Brennkraftmaschine mit wenigstens einer nockenwelle |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20120012075A1 (de) |
| JP (1) | JP2012518121A (de) |
| DE (1) | DE102009009665A1 (de) |
| WO (1) | WO2010094598A1 (de) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102012217456A1 (de) * | 2012-09-26 | 2014-03-27 | Mahle International Gmbh | Nockenwelle für eine Brennkraftmaschine |
| DE102012221876B4 (de) | 2012-11-29 | 2021-01-07 | Schaeffler Technologies AG & Co. KG | Nockenwellenverstellvorrichtung |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR887207A (fr) * | 1941-07-24 | 1943-11-08 | Gnome Et Rhone Moteurs | Perfectionnements apportés aux arbres-vilebrequins à plusieurs coudes pour moteurs |
| US5934234A (en) * | 1996-10-24 | 1999-08-10 | Honda Giken Kogyo Kabushiki Kaisha | Assembly structure of a shaft having a fixed sprocket |
| DE102006036851A1 (de) * | 2005-08-05 | 2007-06-28 | Neumayer Tekfor Holding Gmbh | Welle wie Nockenwelle für Brennkraftmaschinen, Verfahren zur Herstellung solcher Wellen, sowie damit ausgerüstete Brennkraftmaschinen |
| EP1860338A1 (de) * | 2005-03-11 | 2007-11-28 | JTEKT Corporation | Wälzlager, nockenwellenvorrichtung und nockenwellenstützvorrichtung |
| JP2009030468A (ja) * | 2007-07-25 | 2009-02-12 | Jtekt Corp | カムシャフトユニット |
Family Cites Families (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3567877A (en) * | 1969-07-03 | 1971-03-02 | Herbert Y Awaya | Improved adjustment means for distributor contacts and bearings |
| US4388897A (en) * | 1980-09-22 | 1983-06-21 | Bernard Rosa | Variable camshaft assembly |
| JPS59124468A (ja) * | 1982-12-28 | 1984-07-18 | Nissan Motor Co Ltd | 自動車組立工程における作業指示方法 |
| JP3058078B2 (ja) * | 1996-02-22 | 2000-07-04 | トヨタ自動車株式会社 | バルブタイミング可変機構を備えた内燃機関 |
| JP3811232B2 (ja) * | 1996-10-23 | 2006-08-16 | 本田技研工業株式会社 | スプロケットを有するシャフトの組付構造 |
| DE19807675A1 (de) * | 1998-02-25 | 1999-08-26 | Schaeffler Waelzlager Ohg | Zylinderkopf einer Brennkraftmaschine mit wenigstens einer Nockenwelle |
| JP2001151234A (ja) * | 1999-11-29 | 2001-06-05 | Ricoh Co Ltd | 物品運搬保管装置 |
| JP4002108B2 (ja) * | 2002-01-18 | 2007-10-31 | ヤマハ発動機株式会社 | 転がり軸受およびクランク軸用軸受 |
| WO2006088149A1 (ja) * | 2005-02-17 | 2006-08-24 | Jtekt Corporation | カムシャフト装置及びカムシャフト装置の組立方法 |
| JP2006226183A (ja) * | 2005-02-17 | 2006-08-31 | Jtekt Corp | カムシャフト装置とその組立方法 |
| JP4400484B2 (ja) * | 2005-03-11 | 2010-01-20 | 株式会社ジェイテクト | カムシャフト支持装置 |
| JP4382010B2 (ja) * | 2005-06-23 | 2009-12-09 | 本田技研工業株式会社 | エンジンの動弁装置 |
| BRPI0614373B1 (pt) * | 2005-08-05 | 2019-02-26 | Neumayer Tekfor Engineering Gmbh | Eixo com pelo menos um corpo funcional |
| JP2007192103A (ja) * | 2006-01-19 | 2007-08-02 | Toyota Motor Corp | 内燃機関のカムシャフト支持構造 |
| ES2393827T3 (es) * | 2006-09-04 | 2012-12-28 | Ntn Corporation | Cojinete de rodillos, estructura de soporte de árbol de levas, motor de combustión interna y procedimiento para la incorporación del cojinete de rodillos |
| JP5112830B2 (ja) * | 2006-12-28 | 2013-01-09 | Ntn株式会社 | 円錐ころ軸受 |
| DE102007024092A1 (de) * | 2007-05-22 | 2008-11-27 | Mahle International Gmbh | Nockenwelle |
| EP2302241B1 (de) * | 2007-11-27 | 2013-02-20 | JTEKT Corporation | Wellenvorrichtung mit Rollenlager |
| JP5145953B2 (ja) * | 2008-01-10 | 2013-02-20 | 株式会社ジェイテクト | カムシャフト装置 |
| US8727105B2 (en) * | 2011-05-13 | 2014-05-20 | Sst Bearing Corporation | Roller inserts for conveyor rollers and roller assemblies including the same |
| US9249692B2 (en) * | 2011-07-21 | 2016-02-02 | Mahle International Gmbh | Camshaft and associate manufacturing method |
| DE102011081486A1 (de) * | 2011-08-24 | 2013-02-28 | Mahle International Gmbh | Kurbelgehäuse |
-
2009
- 2009-02-19 DE DE102009009665A patent/DE102009009665A1/de not_active Withdrawn
-
2010
- 2010-02-10 US US13/202,237 patent/US20120012075A1/en not_active Abandoned
- 2010-02-10 WO PCT/EP2010/051610 patent/WO2010094598A1/de not_active Ceased
- 2010-02-10 JP JP2011550518A patent/JP2012518121A/ja active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR887207A (fr) * | 1941-07-24 | 1943-11-08 | Gnome Et Rhone Moteurs | Perfectionnements apportés aux arbres-vilebrequins à plusieurs coudes pour moteurs |
| US5934234A (en) * | 1996-10-24 | 1999-08-10 | Honda Giken Kogyo Kabushiki Kaisha | Assembly structure of a shaft having a fixed sprocket |
| EP1860338A1 (de) * | 2005-03-11 | 2007-11-28 | JTEKT Corporation | Wälzlager, nockenwellenvorrichtung und nockenwellenstützvorrichtung |
| DE102006036851A1 (de) * | 2005-08-05 | 2007-06-28 | Neumayer Tekfor Holding Gmbh | Welle wie Nockenwelle für Brennkraftmaschinen, Verfahren zur Herstellung solcher Wellen, sowie damit ausgerüstete Brennkraftmaschinen |
| JP2009030468A (ja) * | 2007-07-25 | 2009-02-12 | Jtekt Corp | カムシャフトユニット |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102009009665A1 (de) | 2010-08-26 |
| US20120012075A1 (en) | 2012-01-19 |
| JP2012518121A (ja) | 2012-08-09 |
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