DE102014103585B3 - Connecting rod for a variable compression of an internal combustion engine - Google Patents
Connecting rod for a variable compression of an internal combustion engine Download PDFInfo
- Publication number
- DE102014103585B3 DE102014103585B3 DE102014103585.2A DE102014103585A DE102014103585B3 DE 102014103585 B3 DE102014103585 B3 DE 102014103585B3 DE 102014103585 A DE102014103585 A DE 102014103585A DE 102014103585 B3 DE102014103585 B3 DE 102014103585B3
- Authority
- DE
- Germany
- Prior art keywords
- connecting rod
- hub
- laser
- lever
- structured surface
- 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.)
- Active
Links
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 18
- 230000006835 compression Effects 0.000 title claims abstract description 14
- 238000007906 compression Methods 0.000 title claims abstract description 14
- 238000006073 displacement reaction Methods 0.000 claims abstract description 14
- 239000000463 material Substances 0.000 claims description 7
- 238000002844 melting Methods 0.000 claims description 3
- 230000008018 melting Effects 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 description 4
- 238000005553 drilling Methods 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 239000000155 melt Substances 0.000 description 3
- 239000003381 stabilizer Substances 0.000 description 2
- 210000000078 claw Anatomy 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B75/00—Other engines
- F02B75/04—Engines with variable distances between pistons at top dead-centre positions and cylinder heads
- F02B75/045—Engines with variable distances between pistons at top dead-centre positions and cylinder heads by means of a variable connecting rod length
-
- 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
- F16C23/00—Bearings for exclusively rotary movement adjustable for aligning or positioning
- F16C23/10—Bearings, parts of which are eccentrically adjustable with respect to each other
-
- 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
- F16C7/06—Adjustable 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
-
- 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)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
Die Erfindung betrifft ein Pleuel für eine variable Verdichtung eines Verbrennungsmotors, bei der ein Kolbenbolzenlagerauge parallel versetzt zu einer Schwenkachse einer Welle angeordnet ist, welche mittels eines Schrumpfverbandes mit einer Nabe eines Hebels drehfest verbunden ist.
Der Hebel weist einen Hebelarm auf, der mittels zumindest einer an diesen gekoppelten hydraulischen Verdrängerkammer um die Schwenkachse schwenkbar ist.
Um das Pleuel kostengünstig auszuführen, weist die Welle und/oder die Nabe eine laserstrukturierte Oberfläche (13) auf.The invention relates to a connecting rod for a variable compression of an internal combustion engine, in which a piston pin bearing eye is arranged offset parallel to a pivot axis of a shaft which is rotatably connected by means of a Schrumpfverbandes with a hub of a lever.
The lever has a lever arm, which is pivotable about the pivot axis by means of at least one hydraulic displacement chamber coupled thereto.
In order to inexpensively carry out the connecting rod, the shaft and / or the hub has a laser-structured surface (13).
Description
Die Erfindung betrifft gemäß dem einteilig gefassten Patentanspruch 1 ein Pleuel für eine variable Verdichtung eines Verbrennungsmotors.The invention relates according to the one-part claim 1 a connecting rod for a variable compression of an internal combustion engine.
Aus der MTZ 05/2012 Seiten 388 bis 392 ist bereits ein Pleuel für eine zweistufige variable Verdichtung bekannt. Dabei ist ein Kolbenbolzenlagerauge als Exzenter ausgeführt. Dieser Exzenter ist mittels einer ersten hydraulischen Verdrängerkammer in eine erste Drehrichtung schwenkbar und mittels einer zweiten hydraulischen Verdrängerkammer in eine zweite Drehrichtung schwenkbar.From the MTZ 05/2012
Aus der
Weiter beschreibt die
Aufgabe der Erfindung ist es, ein kostengünstiges Pleuel für eine variable Verdichtung eines Verbrennungsmotors zu schaffen.The object of the invention is to provide a cost-effective connecting rod for a variable compression of an internal combustion engine.
Diese Aufgabe wird erfindungsgemäß mit den Merkmalen von Patentanspruch 1 gelöst.This object is achieved with the features of claim 1.
Erfindungsgemäß wird ein Pleuel für eine variable Verdichtung eines Verbrennungsmotors vorgeschlagen, bei welchem der Exzenter eine Welle-Nabe-Verbindung aufweist, die als Schrumpfverband ausgeführt ist, bei dem die Welle und/oder die Nabe eine laserstrukturierte Oberfläche aufweist. Dabei kann sich die laserstrukturierte Oberfläche nach dem Schrumpfen in die Oberfläche des Fügepartners – d. h. der Welle oder der Nabe – ”verkrallen”. In anderen Worten formt sich der einer oder beide Fügepartner um.According to the invention, a connecting rod for a variable compression of an internal combustion engine is proposed, in which the eccentric has a shaft-hub connection, which is designed as a shrinkage bandage, wherein the shaft and / or the hub has a laser-structured surface. In this case, the laser-structured surface after shrinking into the surface of the joining partner - d. H. the shaft or the hub - "claw". In other words, one or both joining partners transforms.
Wird der Werkstoff des einen Fügepartners härter gewählt, als der Werkstoff des anderen Fügepartners, so kann der härtere Fügepartner die laserstrukturierte Oberfläche aufweisen, welche die Oberfläche des weicheren Fügepartners nach dem Schrumpfen umformt, so dass eine formschlüssige Verbindung entsteht.If the material of one joining partner is chosen to be harder than the material of the other joining partner, then the harder joining partner can have the laser-structured surface which reshapes the surface of the softer joining partner after shrinking, so that a positive connection is created.
Weitere Vorteile der Erfindung gehen aus den weiteren Patentansprüchen, der Beschreibung und der Zeichnung vor.Further advantages of the invention will become apparent from the other claims, the description and the drawings.
Die Erfindung ist nachfolgend anhand eines Ausführungsbeispiels näher erläutert.The invention is explained in more detail with reference to an embodiment.
Dabei zeigenShow
Der Exzenter
Um diese beiden Stufen der Verdichtung zu steuern ist ein Hydraulikventil
Die Ölversorgung innerhalb des Pleuellagers
Die vom Brennraumkolben über das Kolbenbolzenlagerauge
Die Welle
Wird der Werkstoff des einen Fügepartners härter gewählt, als der Werkstoff des anderen Fügepartners, so kann der härtere Fügepartner die laserstrukturierte Oberfläche aufweisen, welche die Oberfläche des weicheren Fügepartners nach dem Schrumpfen umformt, so dass eine formschlüssige Verbindung entsteht.If the material of one joining partner is chosen to be harder than the material of the other joining partner, then the harder joining partner can have the laser-structured surface which reshapes the surface of the softer joining partner after shrinking, so that a positive connection is created.
In einer alternativen Ausgestaltung der Erfindung weist die Innenseite der Nabe die laserstrukturierte Oberfläche auf und/oder die Welle ist aus einem weicheren Material gefertigt.In an alternative embodiment of the invention, the inside of the hub has the laser-structured surface and / or the shaft is made of a softer material.
Bei den beschriebenen Ausführungsformen handelt es sich nur um beispielhafte Ausgestaltungen. Eine Kombination der beschriebenen Merkmale für unterschiedliche Ausführungsformen ist ebenfalls möglich. Weitere, insbesondere nicht beschriebene Merkmale der zur Erfindung gehörenden Vorrichtungsteile, sind den in den Zeichnungen dargestellten Geometrien der Vorrichtungsteile zu entnehmen.The described embodiments are only exemplary embodiments. A combination of the described features for different embodiments is also possible. Further, in particular not described features of the device parts belonging to the invention are to be taken from the geometries of the device parts shown in the drawings.
BezugszeichenlisteLIST OF REFERENCE NUMBERS
- 11
- Pleuelpleuel
- 22
- KolbenbolzenlageraugePiston pin bearing eye
- 33
- Exzentereccentric
- 44
- erste Verdrängerkammerfirst displacement chamber
- 55
- erste Drehrichtungfirst direction of rotation
- 66
- zweite Verdrängerkammersecond displacement chamber
- 77
- zweite Drehrichtungsecond direction of rotation
- 88th
- Hydraulikventilhydraulic valve
- 99
- Bohrungdrilling
- 1010
- Hebellever
- 1111
- Nabehub
- 1212
- Innenseiteinside
- 1313
- laserstrukturierte Oberflächelaser-structured surface
- 1414
- kreisrunde Ausnehmungcircular recess
- 1515
- Schmelzkratermelting craters
- 1616
- Kraterrandcrater rim
- 17 17
- 1818
- 1919
- 2020
- 2121
- PleuellagerachsePleuellagerachse
- 2222
- Schwenkachseswivel axis
- 2323
- Längsachselongitudinal axis
- 2424
- Abstanddistance
- 2525
- Bohrungdrilling
- 2626
- Wellewave
- 2727
- Armpoor
- 2828
- Armpoor
- 2929
- StützstangeStabilizer
- 3030
- StützstangeStabilizer
- 3131
- Linearkolbenlinear piston
- 3232
- Linearkolbenlinear piston
- 3333
- zylinderförmige Bohrungcylindrical bore
- 3434
- zylinderförmige Bohrungcylindrical bore
- 3535
- Pleuellagerconnecting rod bearing
- 3636
- Kanalchannel
- 3737
- Pleuellagerconnecting rod bearing
- 3838
- Zufuhrleitungsupply line
- 3939
- Zufuhrleitungsupply line
- 4040
- Rückschlagventilcheck valve
- 4141
- Rückschlagventilcheck valve
- 4242
- Bohrungdrilling
- 4343
- 4444
- 4545
- 4646
- Ölpumpeoil pump
- 4747
- Ventillängsachsevalve axis
- 4848
- 4949
- Ausgleichsbohrungcompensating bore
- 5050
- Bohrung im PleuelBore in the connecting rod
- 5151
- Ausgleichsbohrungcompensating bore
- 5252
- Ausgleichsbohrungcompensating bore
- 5353
- Kanalchannel
- 5454
- Kanalchannel
- 100100
- Wellewave
- 102102
- KolbenbolzenlageraugePiston pin bearing eye
- 111111
- Bohrungdrilling
- 127127
- Armpoor
- 128128
- Armpoor
Claims (4)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102014103585.2A DE102014103585B3 (en) | 2014-03-17 | 2014-03-17 | Connecting rod for a variable compression of an internal combustion engine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102014103585.2A DE102014103585B3 (en) | 2014-03-17 | 2014-03-17 | Connecting rod for a variable compression of an internal combustion engine |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102014103585B3 true DE102014103585B3 (en) | 2015-09-03 |
Family
ID=53801547
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102014103585.2A Active DE102014103585B3 (en) | 2014-03-17 | 2014-03-17 | Connecting rod for a variable compression of an internal combustion engine |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE102014103585B3 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107131052A (en) * | 2016-02-29 | 2017-09-05 | 丰田自动车株式会社 | Variable length link and variable compression ratio internal combustion engine |
CN107201944A (en) * | 2016-03-16 | 2017-09-26 | 伊希欧1控股有限公司 | It is used for the connecting rod of the internal combustion engine with variable compression ratio with eccentric wheel adjusting means |
WO2017202773A1 (en) * | 2016-05-25 | 2017-11-30 | ThyssenKrupp Metalúrgica Campo Limpo Ltda. | Connecting rod for an internal combustion engine with adjustable compression ratio |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10230425A1 (en) * | 2002-07-06 | 2004-01-22 | Bayerische Motoren Werke Ag | Bearing bush for IC engine crankshaft is made up of two halves which fit together with butt joints and have end flanges, halves being held together by clips across butt joints |
DE102009043505A1 (en) * | 2009-09-30 | 2011-03-31 | Fev Motorentechnik Gmbh | Internal combustion engine i.e. four cylinder reciprocating piston engine, for use in motor vehicle i.e. passenger car, has lever mechanism acting on crank shaft bearing for transmission of torque and for adjusting bearings |
-
2014
- 2014-03-17 DE DE102014103585.2A patent/DE102014103585B3/en active Active
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10230425A1 (en) * | 2002-07-06 | 2004-01-22 | Bayerische Motoren Werke Ag | Bearing bush for IC engine crankshaft is made up of two halves which fit together with butt joints and have end flanges, halves being held together by clips across butt joints |
DE102009043505A1 (en) * | 2009-09-30 | 2011-03-31 | Fev Motorentechnik Gmbh | Internal combustion engine i.e. four cylinder reciprocating piston engine, for use in motor vehicle i.e. passenger car, has lever mechanism acting on crank shaft bearing for transmission of torque and for adjusting bearings |
Non-Patent Citations (1)
Title |
---|
WEINOWSKI, Rolf: Zweistufige variable Verdichtung für Ottomotoren. 73. MTZ. MTZ : MTZ, 2012 (Heft 5). 388-392. - ISBN 0024-8525 * |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107131052A (en) * | 2016-02-29 | 2017-09-05 | 丰田自动车株式会社 | Variable length link and variable compression ratio internal combustion engine |
CN107131052B (en) * | 2016-02-29 | 2019-07-02 | 丰田自动车株式会社 | Variable length link and variable compression ratio internal combustion engine |
CN107201944A (en) * | 2016-03-16 | 2017-09-26 | 伊希欧1控股有限公司 | It is used for the connecting rod of the internal combustion engine with variable compression ratio with eccentric wheel adjusting means |
CN107201944B (en) * | 2016-03-16 | 2019-11-08 | 伊希欧1控股有限公司 | The connecting rod for the internal combustion engine with variable compression ratio with eccentric wheel regulating device |
WO2017202773A1 (en) * | 2016-05-25 | 2017-11-30 | ThyssenKrupp Metalúrgica Campo Limpo Ltda. | Connecting rod for an internal combustion engine with adjustable compression ratio |
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---|---|---|---|
R012 | Request for examination validly filed | ||
R016 | Response to examination communication | ||
R018 | Grant decision by examination section/examining division | ||
R020 | Patent grant now final | ||
R082 | Change of representative |
Representative=s name: KELLER SCHNEIDER PATENTANWALTS GMBH, DE |