DE102008059621A1 - Bearing arrangement for crankshaft of four-cylinder-in line engine for use in crank case, has five main crankshaft main bearings, where central bearing is formed as friction bearing - Google Patents
Bearing arrangement for crankshaft of four-cylinder-in line engine for use in crank case, has five main crankshaft main bearings, where central bearing is formed as friction bearing Download PDFInfo
- Publication number
- DE102008059621A1 DE102008059621A1 DE102008059621A DE102008059621A DE102008059621A1 DE 102008059621 A1 DE102008059621 A1 DE 102008059621A1 DE 102008059621 A DE102008059621 A DE 102008059621A DE 102008059621 A DE102008059621 A DE 102008059621A DE 102008059621 A1 DE102008059621 A1 DE 102008059621A1
- Authority
- DE
- Germany
- Prior art keywords
- bearing
- bearings
- oil
- arrangement according
- crankshaft
- 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- Withdrawn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
- F16C3/00—Shafts; Axles; Cranks; Eccentrics
- F16C3/04—Crankshafts, eccentric-shafts; Cranks, eccentrics
- F16C3/06—Crankshafts
- F16C3/14—Features relating to lubrication
-
- 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
- F16C21/00—Combinations of sliding-contact bearings with ball or roller bearings, for exclusively rotary movement
-
- 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
- F16C33/1045—Details of supply of the liquid to the bearing
- F16C33/1055—Details of supply of the liquid to the bearing from radial inside, e.g. via a passage through the shaft and/or inner sleeve
-
- 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
-
- 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
- F16C2360/22—Internal combustion engines
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Ocean & Marine Engineering (AREA)
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
- Rolling Contact Bearings (AREA)
Abstract
Description
Die Erfindung betrifft eine Lageranordnung für eine Kurbelwelle einer 4-Zylinder-Reihen-Brennkraftmaschine gemäß dem Oberbegriff des Anspruchs 1.The The invention relates to a bearing arrangement for a crankshaft a 4-cylinder in-line internal combustion engine according to the Preamble of claim 1.
Bei heutigen Brennkraftmaschinen von Kraftfahrzeugen sind in der Regel sowohl die Hauptlager der Kurbelwelle als auch die Pleuellager der Pleuel als Gleitlager ausgeführt. Gleitlager weisen jedoch erheblich höhere Reibungsverluste als Wälzlager auf und benötigen im Unterschied zu diesen eine erhebliche Menge an Drucköl, um eine ausreichende Schmierung der Lager zu gewährleisten. Aus diesem Grund wurde bereits vorgeschlagen, einige oder alle Hauptlager bzw. Pleuellager von Kurbelwellen als Wälzlager auszubilden.at Today's internal combustion engines of motor vehicles are usually Both the main bearing of the crankshaft and the connecting rod bearings Connecting rod designed as a plain bearing. Plain bearings, however, have considerable higher friction losses than rolling bearings on and in contrast to these require a significant amount on pressurized oil to ensure adequate lubrication of the bearings guarantee. For this reason, it has already been suggested some or all main bearings or connecting rod bearings of crankshafts as roller bearings train.
Zum
Beispiel offenbart die
Um
die in Gleitlagern auftretenden höheren Reibungsverluste
zu reduzieren, wurde weiter in der
Da bei diesem Vorschlag jedoch nur die Gleitlager von zwei Hauptlagern der Kurbelwelle durch Wälzlager ersetzt werden, wird das Reibungsminderungspotenzial nicht in vollem Umfang ausgenutzt.There in this proposal, however, only the bearings of two main bearings the crankshaft are replaced by rolling bearings, the Frictional reduction potential not fully exploited.
Ausgehend hiervon liegt der Erfindung die Aufgabe zugrunde, eine Lageranordnung der eingangs genannten Art dahingehend zu verbessern, dass die Reibungsverluste in den Hauptlagern weiter reduziert werden können, ohne dass es zu einer wesentlichen akustischen Beeinträchtigung kommt.outgoing This is the object of the invention, a bearing arrangement of the type mentioned above to improve that the friction losses in the main camps can be further reduced without that there is a significant acoustic impairment comes.
Diese Aufgabe wird erfindungsgemäß dadurch gelöst, dass nur ein einziges Hauptlager als Gleitlager ausgebildet ist, während die übrigen Hauptlager als Wälzlager ausgebildet sind.These The object is achieved according to the invention that only a single main bearing is designed as a plain bearing, while the remaining main bearings as rolling bearings are formed.
Durch
die erfindungsgemäße Maßnahme können
im Vergleich zu einer konventionellen, vollständig gleitgelagerten
Kurbelwelle 4/5 des möglichen Reibungsminderungspotenzials
erschlossen werden, während dies bei der aus der
Eine bevorzugte Ausgestaltung der Erfindung sieht vor, dass das am höchsten belastete mittlere Hauptlager als Gleitlager ausgebildet ist, während die beiden Paare von Hauptlagern beiderseits des mittleren Hauptlagers als Wälzlager ausgebildet sind.A preferred embodiment of the invention provides that the highest loaded central main bearing is designed as a sliding bearing while the two pairs of main camps on both sides of the central main camp are designed as rolling bearings.
Eine weitere bevorzugte Ausgestaltung der Erfindung sieht vor, dass sämtliche Pleuellager als Gleitlager ausgebildet sind, weil zum einen der vorhandene Bauraum an den Pleuellagern kleiner ist und weil zum anderen in den Pleuellagern stärkere stoßförmige Belastungen auftreten, die durch Gleitlager besser aufgefangen werden können. Im Vergleich zu wälzgelagerten Pleueln werden außerdem die Verbrennungsgeräusche zumindest durch einen Ölfilm gedämpft, bevor sie auf die Kurbelwelle und das Kurbelgehäuse übertragen werden, was zu einer erheblichen Verbesserung der Akustik führt.A Another preferred embodiment of the invention provides that all Pleuellager are designed as plain bearings, because on the one hand existing space is smaller at the connecting rod bearings and because the others in the conrod bearings stronger bumpy Loads occur that are better absorbed by plain bearings can. Compared to roller-bearing connecting rods In addition, the combustion noise will at least steamed by an oil film before going to the Crankshaft and the crankcase are transmitted, which leads to a considerable improvement of the acoustics.
In diesem Fall werden die Pleuellager zur Schmierung bevorzugt über das als Gleitlager ausgebildete Hauptlager mit Öl versorgt, das vorteilhaft als Drucköl durch einen Ölkanal des Kurbelgehäuses zu dem als Gleitlager ausgebildeten mittleren Hauptlager und von dort aus durch die Kurbelwelle hindurch zu sämtlichen Pleuellagern geleitet wird. Um das Drucköl durch das als Gleitlager ausgebildete mittlere Hauptlager hindurch in Ölbohrungen der Kurbelwelle zu leiten, ist das Gleitlager zweckmäßig mit einer Öldurchführung versehen, von wo aus das Drucköl durch erste Ölbohrungen zu den benachbarten Pleuellagern an den beiden inneren Hubzapfen geleitet wird.In In this case, the connecting rod bearings are preferred for lubrication over the main bearing designed as a plain bearing is supplied with oil, this is advantageous as pressure oil through an oil channel the crankcase to the trained as a sliding bearing Central main bearing and from there through the crankshaft through all conrod bearings is directed. To the pressure oil through the designed as a plain bearing central main bearing to guide in oil holes of the crankshaft, is the plain bearing convenient with an oil passage from where the pressure oil through first oil wells passed to the adjacent connecting rod bearings on the two inner Hubzapfen becomes.
Die beiden übrigen Pleuellager an den äußeren Hubzapfen der Kurbelwelle werden jeweils durch eine zweite Ölbohrung mit Drucköl gespeist, die sich vom benachbarten inneren Pleuellager oder von der benachbarten ersten Ölbohrung aus bis zu dem Pleuellager des äußeren Hubzapfens durch die Kurbelwelle erstreckt, wobei sie im zuletzt ge nannten Fall an einem Ende verschlossen ist, zum Beispiel durch eine eingepresste Stahlkugel.The both remaining connecting rod bearings on the outer Crank pins of the crankshaft are each through a second oil hole fed with pressurized oil, extending from the adjacent inner Connecting rod bearings or from the adjacent first oil hole out to the connecting rod bearing of the outer crank pin extends through the crankshaft, where they last called ge Case is closed at one end, for example by a pressed-in Steel ball.
Die Kurbelwelle ist bevorzugt als monolithische Kurbelwelle ausgebildet, während die Hauptlager, d. h. sowohl die Wälzlager und das Gleitlager, der Lageranordnung als geteilte Lager ausgebildet sind, die im Zuge der Montage der Kurbelwelle zwischen dem Kurbelgehäuse und der Kurbelwelle montiert werden.The crankshaft is preferably formed as a monolithic crankshaft, while the main bearings, ie, both the bearings and the plain bearing, the bearing assembly are formed as a split bearing in the course of assembly of the crankshaft between the crankcase and the crankshaft mon be done.
Im folgenden wird die Erfindung anhand zweier in der Zeichnung dargestellter Ausführungsbeispiele näher erläutert. Es zeigen:in the Following is the invention with reference to two shown in the drawing Embodiments explained in more detail. Show it:
Die
in der Zeichnung dargestellte monolithische Kurbelwelle
Wie
am besten in
Die
in einem Kurbelgehäuse (nicht dargestellt) des Motors untergebrachte
Kurbelwelle
Um
die Reibungsverluste in den Hauptlagern
Um
zu vermeiden, dass es durch die vier Wälzlager
Um
die Montage der Gleitlager
Das
Gleitlager
Wie
in
Während
die Schmierung der Wälzlager
Dazu
wird das Drucköl durch einen Ölkanal im Inneren
des mittleren Lagerstuhls zum Gleitlager
Die
beiden ersten Ölbohrungen
Auch
die beiden zweiten Ölbohrungen
Bei
dem in
Wenn
das Gleitlager
- 11
- Kurbelwellecrankshaft
- 22
- Wellenzapfenshaft journal
- 33
- WangenWangen
- 44
- Zahnradgear
- 55
- Hubzapfencrank pins
- 66
- Pleuelpleuel
- 77
- Zylindercylinder
- 88th
- Kolbenpiston
- 99
- Drehachseaxis of rotation
- 1010
- Haupt- bzw. WälzlagerHead- or roller bearings
- 1111
- Haupt- bzw. WälzlagerHead- or roller bearings
- 1212
- Haupt- bzw. GleitlagerHead- or slide bearing
- 1313
- Haupt- bzw. WälzlagerHead- or roller bearings
- 1414
- Haupt- bzw. WälzlagerHead- or roller bearings
- 1515
- Pleuel- bzw. Gleitlagerconnecting rod or slide bearing
- 1616
- erste Ölbohrungfirst oil hole
- 1717
- zweite Ölbohrungsecond oil hole
- 1818
- Eintrittsöffnunginlet opening
- 1919
- Umfangsflächeperipheral surface
- 2020
- Umfangsflächeperipheral surface
- 2121
- Austrittsöffnungoutlet opening
- 2222
- Eintrittsöffnunginlet opening
- 2323
- Austrittsöffnungoutlet opening
- 2424
- Umfangsflächeperipheral surface
- 2525
- Ende ÖlbohrungEnd of oil drilling
- 2626
- Stahlkugelsteel ball
ZITATE ENTHALTEN IN DER BESCHREIBUNGQUOTES INCLUDE IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- - DE 202005005999 U1 [0003] - DE 202005005999 U1 [0003]
- - DE 10153018 A1 [0004, 0008, 0008] - DE 10153018 A1 [0004, 0008, 0008]
Claims (17)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102008059621A DE102008059621A1 (en) | 2008-11-28 | 2008-11-28 | Bearing arrangement for crankshaft of four-cylinder-in line engine for use in crank case, has five main crankshaft main bearings, where central bearing is formed as friction bearing |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102008059621A DE102008059621A1 (en) | 2008-11-28 | 2008-11-28 | Bearing arrangement for crankshaft of four-cylinder-in line engine for use in crank case, has five main crankshaft main bearings, where central bearing is formed as friction bearing |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102008059621A1 true DE102008059621A1 (en) | 2010-06-10 |
Family
ID=42145382
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102008059621A Withdrawn DE102008059621A1 (en) | 2008-11-28 | 2008-11-28 | Bearing arrangement for crankshaft of four-cylinder-in line engine for use in crank case, has five main crankshaft main bearings, where central bearing is formed as friction bearing |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE102008059621A1 (en) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2469108A1 (en) * | 2010-12-23 | 2012-06-27 | AVL List GmbH | Combustion engine, in particular for racing vehicles |
DE102012002577A1 (en) | 2012-02-09 | 2013-08-14 | Daimler Ag | Bearing arrangement of a crankshaft to a crankcase of an internal combustion engine |
DE102012004529A1 (en) | 2012-03-06 | 2013-09-12 | Daimler Ag | Bearing element of crankcase for reciprocating internal combustion engine, has bearing channel having bearing points with different inner circumferential side diameters, which are arranged in axial direction in ascending order |
DE102012004889A1 (en) | 2012-03-10 | 2013-09-12 | Daimler Ag | Bearing device of a crankcase for a reciprocating internal combustion engine |
WO2014012618A1 (en) | 2012-07-17 | 2014-01-23 | Daimler Ag | Shaft for an internal combustion engine and bearing arrangement of such a shaft on the housing of an internal combustion engine |
DE102012023417A1 (en) | 2012-11-29 | 2014-06-05 | Daimler Ag | Storage arrangement for crankshaft of crankcase in internal combustion engine, has bearing seat partially delimiting first bearing segment and second bearing segment that are connected to each other to form bearing seat |
DE102014004763A1 (en) * | 2014-04-01 | 2015-10-01 | GM Global Technology Operations LLC (n. d. Ges. d. Staates Delaware) | Rolling bearing crank mechanism |
WO2017207617A1 (en) * | 2016-05-31 | 2017-12-07 | Avl List Gmbh | Crankshaft for a reciprocating engine, reciprocating engine and vehicle having a reciprocating engine |
US11333191B2 (en) * | 2019-03-27 | 2022-05-17 | Subaru Corporation | Crankshaft |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE335133C (en) * | 1917-09-14 | 1921-03-26 | Henri Victor Jules Jouffret | Multiple coupled motor arrangement |
DE567870C (en) * | 1930-02-05 | 1933-01-11 | Marius Jean Baptiste Barbarou | Crankshaft for internal combustion engines |
US1931026A (en) * | 1930-03-26 | 1933-10-17 | Chrysler Corp | Bearing |
US2731960A (en) * | 1956-01-24 | Internal combustion engine with die cast block | ||
DE1061565B (en) * | 1957-06-14 | 1959-07-16 | Adolf Geigenthaler | Roll-bearing crankshaft for internal combustion engines in elastic bearings |
DE2736601A1 (en) * | 1977-08-13 | 1979-02-22 | Kloeckner Humboldt Deutz Ag | Plain bearing for IC engine connecting rod - has oil-retaining collar pressed into place against crankshaft collar by spring ring |
JPH10246151A (en) * | 1997-02-28 | 1998-09-14 | Suzuki Motor Corp | Cylinder block lower part structure for engine |
DE10153018A1 (en) | 2001-10-26 | 2003-05-08 | Ina Schaeffler Kg | Crankshaft bearing system for IC engines consists of two outer opposite roller bearings and slide bearings between the outer ones to reduce friction |
DE202005005999U1 (en) | 2005-04-14 | 2006-08-17 | Fev Motorentechnik Gmbh | Crank drive for IC engines comprises one-piece crankshaft and one-piece connecting rods which are threaded over shaft and fit on to ball bearings mounted on it |
-
2008
- 2008-11-28 DE DE102008059621A patent/DE102008059621A1/en not_active Withdrawn
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2731960A (en) * | 1956-01-24 | Internal combustion engine with die cast block | ||
DE335133C (en) * | 1917-09-14 | 1921-03-26 | Henri Victor Jules Jouffret | Multiple coupled motor arrangement |
DE567870C (en) * | 1930-02-05 | 1933-01-11 | Marius Jean Baptiste Barbarou | Crankshaft for internal combustion engines |
US1931026A (en) * | 1930-03-26 | 1933-10-17 | Chrysler Corp | Bearing |
DE1061565B (en) * | 1957-06-14 | 1959-07-16 | Adolf Geigenthaler | Roll-bearing crankshaft for internal combustion engines in elastic bearings |
DE2736601A1 (en) * | 1977-08-13 | 1979-02-22 | Kloeckner Humboldt Deutz Ag | Plain bearing for IC engine connecting rod - has oil-retaining collar pressed into place against crankshaft collar by spring ring |
JPH10246151A (en) * | 1997-02-28 | 1998-09-14 | Suzuki Motor Corp | Cylinder block lower part structure for engine |
DE10153018A1 (en) | 2001-10-26 | 2003-05-08 | Ina Schaeffler Kg | Crankshaft bearing system for IC engines consists of two outer opposite roller bearings and slide bearings between the outer ones to reduce friction |
DE202005005999U1 (en) | 2005-04-14 | 2006-08-17 | Fev Motorentechnik Gmbh | Crank drive for IC engines comprises one-piece crankshaft and one-piece connecting rods which are threaded over shaft and fit on to ball bearings mounted on it |
Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2469108A1 (en) * | 2010-12-23 | 2012-06-27 | AVL List GmbH | Combustion engine, in particular for racing vehicles |
AT510872A1 (en) * | 2010-12-23 | 2012-07-15 | Avl List Gmbh | INTERNAL COMBUSTION ENGINE, ESPECIALLY FOR RACING VEHICLES |
AT510872B1 (en) * | 2010-12-23 | 2012-09-15 | Avl List Gmbh | INTERNAL COMBUSTION ENGINE, ESPECIALLY FOR RACING VEHICLES |
DE102012002577A1 (en) | 2012-02-09 | 2013-08-14 | Daimler Ag | Bearing arrangement of a crankshaft to a crankcase of an internal combustion engine |
WO2013117302A1 (en) | 2012-02-09 | 2013-08-15 | Daimler Ag | Bearing arrangement of a crankshaft on a crankcase of an internal combustion engine, comprising plain bearings and rolling contact bearings |
DE102012004529A1 (en) | 2012-03-06 | 2013-09-12 | Daimler Ag | Bearing element of crankcase for reciprocating internal combustion engine, has bearing channel having bearing points with different inner circumferential side diameters, which are arranged in axial direction in ascending order |
DE102012004889A1 (en) | 2012-03-10 | 2013-09-12 | Daimler Ag | Bearing device of a crankcase for a reciprocating internal combustion engine |
WO2013135334A1 (en) | 2012-03-10 | 2013-09-19 | Daimler Ag | Bearing device of a crankcase for a reciprocating-piston internal combustion engine, comprising both sliding and roller bearings |
WO2014012618A1 (en) | 2012-07-17 | 2014-01-23 | Daimler Ag | Shaft for an internal combustion engine and bearing arrangement of such a shaft on the housing of an internal combustion engine |
DE102012014127A1 (en) | 2012-07-17 | 2014-05-15 | Daimler Ag | Shaft for an internal combustion engine and storage arrangement of such a shaft on a housing of an internal combustion engine |
DE102012023417A1 (en) | 2012-11-29 | 2014-06-05 | Daimler Ag | Storage arrangement for crankshaft of crankcase in internal combustion engine, has bearing seat partially delimiting first bearing segment and second bearing segment that are connected to each other to form bearing seat |
DE102014004763A1 (en) * | 2014-04-01 | 2015-10-01 | GM Global Technology Operations LLC (n. d. Ges. d. Staates Delaware) | Rolling bearing crank mechanism |
WO2017207617A1 (en) * | 2016-05-31 | 2017-12-07 | Avl List Gmbh | Crankshaft for a reciprocating engine, reciprocating engine and vehicle having a reciprocating engine |
US11333191B2 (en) * | 2019-03-27 | 2022-05-17 | Subaru Corporation | Crankshaft |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE102008059621A1 (en) | Bearing arrangement for crankshaft of four-cylinder-in line engine for use in crank case, has five main crankshaft main bearings, where central bearing is formed as friction bearing | |
DE102008026204A1 (en) | Bearing arrangement of a shaft | |
DE102012222353B4 (en) | Oil supply structure of a crankshaft in an engine | |
EP2604816A1 (en) | Shaft/bearing arrangement | |
DE102010019130B4 (en) | Cylinder head | |
DE19858996B4 (en) | Arrangement for supporting a shaft | |
DE202005005999U1 (en) | Crank drive for IC engines comprises one-piece crankshaft and one-piece connecting rods which are threaded over shaft and fit on to ball bearings mounted on it | |
DE102004054128A1 (en) | Crank drive for IC engines comprises one-piece crankshaft and one-piece connecting rods which are threaded over shaft and fit on to ball bearings mounted on it | |
EP3438424A1 (en) | Device for lubricating an engine | |
DE102006057695A1 (en) | Assembly ready roller bearing with one piece bearing outer ring useful for crankshafts of internal combustion engines can be fixed in two-part housing without additional cost | |
DE102008036056A1 (en) | Cam follower e.g. rocker arm, for valve train of internal-combustion engine, has outer ring and inner ring that are in sliding contact with each other, and rolling body set arranged between inner ring and bolt | |
DE10153018A1 (en) | Crankshaft bearing system for IC engines consists of two outer opposite roller bearings and slide bearings between the outer ones to reduce friction | |
DE102009049468A1 (en) | Casted unbalanced shaft for balancing mass-force/mass-torque of reciprocating piston-internal combustion engine in four cylinder-series construction, has rings whose casing surface is supported at circumference points of bearing section | |
DE102010055091A1 (en) | Bearing assembly for crankshaft at bearing part of reciprocating piston engine, has thrust ring arranged in axial direction of crankshaft, where thrust surface of crankshaft includes inner and outer grooves for guiding lubricant | |
WO2012123212A1 (en) | Crankshaft main bearing and method for supplying oil | |
DE567870C (en) | Crankshaft for internal combustion engines | |
DE102011017068B4 (en) | Crank drive for an internal combustion engine | |
DE102008009556A1 (en) | Balance shaft of an internal combustion engine | |
DE102008047186B4 (en) | Internal combustion engine with different bearing play in the bearings of the crankshaft | |
DE102005046392A1 (en) | Bearing arrangement for fixed rollers comprises a sleeve-like centerpiece with two bearings carrying the roller shaft, where the outer rings of the bearings are mounted on the outer periphery of the centerpiece | |
DE102010050621A1 (en) | Internal combustion engine, particular for motor vehicle, has crankshaft with crank pin as well as connecting rod that is arranged at crank pin | |
DE102012020027A1 (en) | Reciprocating piston internal combustion engine for passenger car, has lever element pivoted at bearing position at crank pin, where one bearing position is designed for supplying lubricant to other bearing position from lubrication mist | |
AT510872B1 (en) | INTERNAL COMBUSTION ENGINE, ESPECIALLY FOR RACING VEHICLES | |
DE102015122403A1 (en) | Bearing device for an exhaust gas turbocharger and turbocharger | |
DE10258882A1 (en) | Piston engine has a crankcase and a crankshaft linked by bearing shells with an oil cushion between the two |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
OM8 | Search report available as to paragraph 43 lit. 1 sentence 1 patent law | ||
OP8 | Request for examination as to paragraph 44 patent law | ||
R120 | Application withdrawn or ip right abandoned |