WO2001014754A1 - Crankshaft for a high-speed four-cylinder in-line reciprocating engine, especially an internal combustion engine - Google Patents

Crankshaft for a high-speed four-cylinder in-line reciprocating engine, especially an internal combustion engine Download PDF

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Publication number
WO2001014754A1
WO2001014754A1 PCT/DE2000/002684 DE0002684W WO0114754A1 WO 2001014754 A1 WO2001014754 A1 WO 2001014754A1 DE 0002684 W DE0002684 W DE 0002684W WO 0114754 A1 WO0114754 A1 WO 0114754A1
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Prior art keywords
crank
crankshaft
bearing
cranks
bearing point
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PCT/DE2000/002684
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German (de)
French (fr)
Inventor
Christian Puchas
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Kontec Gmbh
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Application filed by Kontec Gmbh filed Critical Kontec Gmbh
Priority to DE20080161U priority Critical patent/DE20080161U1/en
Publication of WO2001014754A1 publication Critical patent/WO2001014754A1/en

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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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F7/00—Casings, e.g. crankcases or frames
    • F02F7/0043—Arrangements of mechanical drive elements
    • F02F7/0053—Crankshaft bearings fitted in the crankcase
    • 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
    • F16C3/20—Shape of crankshafts or eccentric-shafts having regard to balancing

Definitions

  • the invention relates to a crankshaft for a high-speed in-line four-cylinder piston engine, in particular an internal combustion engine, with the features of the preamble of claim 1.
  • the invention also relates to the use of such a crankshaft in a piston engine and to a piston engine equipped therewith.
  • crankshaft Such a crankshaft is known from Schneider, Günther: "The specialist knowledge of the engineer” Kunststoff, Carl-Hanser-Verlag 1967, page 19.
  • the crankshaft described there has only two bearing points, namely a first bearing point and a second bearing point, and has four In order to achieve a spacing that is as uniform as possible, the four crank depresses lie at least approximately in one plane.
  • the two bearing points are arranged axially on the outside next to the outer crank depressions in order to support the crankshaft there in the engine block.
  • crankshaft is known from US Pat. No. 1,552,174, which likewise has four crank troughs, all of the adjacent crank troughs being in each case offset from one another by 180 °. With this crankshaft, five bearing points are provided, namely one axially outside next to the outer course Belkrropfonne and sometimes between two neighboring crank thrusts.
  • US Pat. No. 4,168,636 likewise shows a crankshaft with four crank knobs, all of the adjacent crank knobs being staggered by 180 ° to one another.
  • this crankshaft three bearing points are provided, namely a bearing point axially outside next to the outer crank bolsters and a bearing point centrally between the two inner crank bolsters.
  • this crankshaft is equipped with counterweights, which are each axially arranged between a crank and the adjacent bearing point. The respective counterweight is offset by 180 ° with respect to the adjacent crank crank.
  • DE-PS 822 036 also shows a crankshaft with four crank knobs, which are each offset by 180 ° to the adjacent crank knuckle.
  • this crankshaft three bearing points are also provided, one each axially outside the outer crank and one axially between the inner crank.
  • JP 4-282 011 A also shows a crankshaft with four crank troughs, all of the adjacent crank troughs being in each case offset by 180 ° to one another.
  • This crankshaft also has five bearing points, namely one axially outside next to the outer crank troughs and one axially between the adjacent crank troughs.
  • the present invention deals with the problem of a crankshaft which is only supported at two bearing points to design that a piston engine equipped with it has increased performance.
  • crankshaft with the features of claim 1 and by a use according to claim 2 and by a piston engine according to claim 3.
  • FIG. 1 An embodiment of the invention is shown in Fig. 1.
  • a crankshaft 1 according to the invention has four crank cranks, namely two axially outer crank cranks 11 and 14 and two axially inner crank cranks 12 and 13 arranged between them.
  • the inner crank cranks 12 and 13 have an offset of 180 ° to one another.
  • the oscillating mass forces of the first order 42, 43 are now opposing internal forces which act on the crankshaft 1 but relieve the load on the central crankshaft bearing, so that it is no longer required as a support bearing.
  • the one outer crank crank 11 has an offset of 180 ° to the adjacent inner crank crank 12 and to the other outer crank crank 14.
  • two counterweights 31, 32 in front of or axially outside next to the one outer crank crank 11 and after or axially outside next to the other outer crank crank 14 are sufficient.
  • the mass of one of these counterweights 31, 32 corresponds approximately to the mass of a counterweight one conventional crankshaft with eight counterweights, so that in this comparison there is a weight advantage of six counterweights in favor of the crankshaft 1 according to the invention.
  • the one counterweight 31 to the other counterweight 32 has an offset of 180 °.
  • Each counterweight 31, 32 is also offset by 180 ° from the adjacent outer crank crank 11 or 14.
  • crankshaft 1 Since, compared to conventional crankshafts, the crankshaft 1 according to the invention has no bearing points in front of or axially outside next to one outer crank crank 11 and after or axially outside next to the other outer crank crank 14, the overall length is shortened by two bearing widths.
  • crankshaft 1 delivers an even firing interval.
  • crankshaft 1 has the following distinguishing features from a conventional crankshaft: the crankshaft bearings or bearing points in front of the one outer crank shoulder 11 and after the other outer crank shoulder 14 are missing, so that the overall length is reduced by two bearing widths,
  • crankshaft bearing or the bearing point between the inner crank knobs 12 and 13 is missing
  • one crank crank 12 is offset from the other crank crank 13 by 180 °
  • one outer crank bolster 11 is offset from the adjacent inner crank bolster 12 as well as to the other outer crank bolster 14 by 180 °,
  • the firing order is 1-4-3-2 or 1-2-3-4 and provides the same ignition spacing
  • the counterweights 31, 32 are not arranged in the immediate vicinity of a crankshaft bearing.
  • crankshaft 1 results in the lowest bearing load and thereby enables an increase in performance of the piston machine equipped with it and extremely lightweight construction.
  • crankshaft 1 The advantages achieved by the crankshaft 1 are, for example, the lower weight, the shorter construction length, the smaller number of bearings, the lower friction, the lower noise emission and the lower manufacturing costs.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)

Abstract

The invention relates to a crankshaft for a high-speed four-cylinder in-line reciprocating engine exclusively comprising two bearing points, namely a first bearing point (21) and a second bearing point (22), and comprising four shaft cranks, namely two outer shaft cranks (11, 14), and two inner shaft cranks (12, 13) arranged therebetween, whereby the four shaft cranks (11, 12, 13, 14) are arranged at least approximately in a plane. The aim of the invention is to increase the output of a reciprocating engine equipped with this crankshaft. To this end, the first bearing point (21) is arranged between the outer shaft crank (11) and the inner shaft crank (12) of one crankshaft side, and the second bearing point (22) is arranged between the outer shaft crank (14) and the inner shaft crank (13) of the other crankshaft side. In addition, all adjacent shaft cranks (11, 12, 13, 14) are offset from one another by 180 DEG , whereby a counterweight (31, 32) is arranged next to each of the outer shaft cranks (11, 14) in an axially exterior manner and is offset by 180 DEG with regard to the adjacent shaft crank (11, 14).

Description

Kurbelwelle für eine schnelllaufende Reihen-Vierzylinder- Kolbenmaschine, insbesondere Brennkraftmaschine Crankshaft for a high-speed in-line four-cylinder piston engine, especially an internal combustion engine
Die Erfindung betrifft eine Kurbelwelle für eine schnelllaufende Reihen-Vierzylmder-Kolbenmaschine, insbesondere Brennkraftmaschine, mit den Merkmalen des Oberbegriffs des Anspruchs 1. Die Erfindung betrifft außerdem die Verwendung einer solchen Kurbelwelle in einer Kolbenmaschine sowie eine damit ausgestattete Kolbenmaschine.The invention relates to a crankshaft for a high-speed in-line four-cylinder piston engine, in particular an internal combustion engine, with the features of the preamble of claim 1. The invention also relates to the use of such a crankshaft in a piston engine and to a piston engine equipped therewith.
Eine derartige Kurbelwelle ist aus Schneider, Günther: „Das Fachwissen des Ingenieurs" München, Carl-Hanser-Verlag 1967, Seite 19 bekannt. Die dort beschriebene Kurbelwelle weist ausschließlich zwei Lagerstellen auf, nämlich eine erste Lagerstelle und eine zweite Lagerstelle, und besitzt vier Kurbelkropfungen, nämlich zwei äußere Kurbelkropfungen und zwei dazwischen angeordnete innere Kurbelkropfungen. Um einen möglichst gleichmaßigen Zundabstand zu erzielen, liegen die vier Kurbelkropfungen wenigstens annähernd in einer Ebene. Die beiden Lagerstellen sind jeweils axial außen neben den äußeren Kurbelkropfungen angeordnet, um dort eine Lagerung der Kurbelwelle im Motorblock zu ermöglichen.Such a crankshaft is known from Schneider, Günther: "The specialist knowledge of the engineer" Munich, Carl-Hanser-Verlag 1967, page 19. The crankshaft described there has only two bearing points, namely a first bearing point and a second bearing point, and has four In order to achieve a spacing that is as uniform as possible, the four crank depresses lie at least approximately in one plane. The two bearing points are arranged axially on the outside next to the outer crank depressions in order to support the crankshaft there in the engine block.
Aus der US 1 552 174 ist eine Kurbelwelle bekannt, die ebenfalls vier Kurbelkropfungen aufweist, wobei samtliche benachbarten Kurbelkropfungen jeweils um 180° zueinander versetzt angeordnet sind. Bei dieser Kurbelwelle sind fünf Lagerstellen vorgesehen, nämlich je eine axial außen neben den äußeren Kur- belkropfungen sowie eweils eine zwischen zwei benachbarten Kurbelkropfungen .A crankshaft is known from US Pat. No. 1,552,174, which likewise has four crank troughs, all of the adjacent crank troughs being in each case offset from one another by 180 °. With this crankshaft, five bearing points are provided, namely one axially outside next to the outer course Belkrropfungen and sometimes between two neighboring crank thrusts.
Die US 4 168 636 zeigt ebenfalls eine Kurbelwelle mit vier Kurbelkropfungen, wobei auch hier samtliche benachbarten Kurbelkropfungen jeweils um 180° zueinander versetzt angeordnet sind. Bei dieser Kurbelwelle sind drei Lagerstellen vorgesehen, nämlich e eine Lagerstelle axial außen neben den äußeren Kurbelkropfungen sowie eine Lagerstelle mittig zwischen den beiden inneren Kurbelkropfungen. Darüber hinaus ist diese Kurbelwelle mit Gegengewichten ausgestattet, die jeweils axial zwischen einer Kurbelkropfung und der dazu benachbarten Lagerstelle angeordnet sind. Das jeweilige Gegengewicht ist dabei um 180° gegenüber der benachbarten Kurbelkropfung versetzt angeordnet.US Pat. No. 4,168,636 likewise shows a crankshaft with four crank knobs, all of the adjacent crank knobs being staggered by 180 ° to one another. In this crankshaft, three bearing points are provided, namely a bearing point axially outside next to the outer crank bolsters and a bearing point centrally between the two inner crank bolsters. In addition, this crankshaft is equipped with counterweights, which are each axially arranged between a crank and the adjacent bearing point. The respective counterweight is offset by 180 ° with respect to the adjacent crank crank.
Auch die DE-PS 822 036 zeigt eine Kurbelwelle mit vier Kurbelkropfungen, die jeweils um 180° zur benachbarten Kurbelkropfung versetzt angeordnet sind. Bei dieser Kurbelwelle sind ebenfalls drei Lagerstellen vorgesehen, wobei je eine axial außen neben den äußeren Kurbelkropfungen und eine axial zwischen den inneren Kurbelkropfungen angeordnet ist.DE-PS 822 036 also shows a crankshaft with four crank knobs, which are each offset by 180 ° to the adjacent crank knuckle. In this crankshaft, three bearing points are also provided, one each axially outside the outer crank and one axially between the inner crank.
Die JP 4-282 011 A (Abstract) zeigt ebenfalls eine Kurbelwelle mit vier Kurbelkropfungen, wobei samtliche benachbarten Kurbelkropfungen jeweils um 180° zueinander versetzt angeordnet sind. Auch diese Kurbelwelle besitzt fünf Lagerstellen, nämlich jeweils eine axial außen neben den äußeren Kurbelkropfungen sowie jeweils eine axial zwischen den benachbarten Kurbelkropfungen.JP 4-282 011 A (abstract) also shows a crankshaft with four crank troughs, all of the adjacent crank troughs being in each case offset by 180 ° to one another. This crankshaft also has five bearing points, namely one axially outside next to the outer crank troughs and one axially between the adjacent crank troughs.
Die vorliegende Erfindung beschäftigt sich mit dem Problem, eine Kurbelwelle, die nur an zwei Lagerstellen gelagert ist, so auszugestalten, dass ein damit ausgestatteter Kolbenmotor eine erhöhte Leistung aufweist.The present invention deals with the problem of a crankshaft which is only supported at two bearing points to design that a piston engine equipped with it has increased performance.
Dieses Problem wird erfindungsgemäß durch eine Kurbelwelle mit den Merkmalen des Anspruchs 1 und durch eine Verwendung gemäß Anspruch 2 sowie durch eine Kolbenmaschine entsprechend Anspruch 3 gelost.This problem is solved according to the invention by a crankshaft with the features of claim 1 and by a use according to claim 2 and by a piston engine according to claim 3.
Ein Ausführungsbeispiel der Erfindung ist in Fig. 1 dargestellt.An embodiment of the invention is shown in Fig. 1.
Entsprechend Fig. 1 weist eine erfindungsgemäße Kurbelwelle 1 vier Kurbelkröpfungen, nämlich zwei axial äußere Kurbelkröpfungen 11 und 14 und zwei dazwischen angeordnete axial innere Kurbelkröpfungen 12 und 13, auf. Die inneren Kurbelkröpfungen 12 und 13 weisen einen Versatz von 180° zueinander auf. Die oszillierenden Massenkräfte erster Ordnung 42, 43 sind nun entgegengesetzte innere Kräfte, die auf die Kurbelwelle 1 wirken, jedoch das mittige Kurbelwellenlager entlasten, so dass dieses als Stützlager nicht mehr benötigt wird.According to FIG. 1, a crankshaft 1 according to the invention has four crank cranks, namely two axially outer crank cranks 11 and 14 and two axially inner crank cranks 12 and 13 arranged between them. The inner crank cranks 12 and 13 have an offset of 180 ° to one another. The oscillating mass forces of the first order 42, 43 are now opposing internal forces which act on the crankshaft 1 but relieve the load on the central crankshaft bearing, so that it is no longer required as a support bearing.
In der weiteren Anordnung hat die eine äußere Kurbelkröpfung 11 zur benachbarten inneren Kurbelkröpfung 12 und zur anderen äußeren Kurbelkröpfung 14 jeweils einen Versatz von 180°.In the further arrangement, the one outer crank crank 11 has an offset of 180 ° to the adjacent inner crank crank 12 and to the other outer crank crank 14.
Setzt man nun in vorteilhafter Weise ein erstes Kurbelwellenlager bzw. eine erste Lagerstelle 21 zwischen die eine äußere Kurbelkröpfung 11 und die dazu benachbarte innere Kurbelkröpfung 12 und ein zweites Kurbelwellenlager bzw. eine zweite Lagerstelle 22 zwischen die andere äußere Kurbelkröpfung 14 und die dazu benachbarte innere Kurbelkröpfung 13, so entlasten die Massenkräfte 41, 42 und 43, 44 die Lagerstellen 21 und 22. Die Massenkräfte 41, 42, 43, 44 wirken zwar noch als innere Kräfte und beanspruchen die Kurbelwelle 1 auf Biegung und Torsion, jedoch ist ihre Verteilung jetzt gleichmäßiger und damit die Durchbiegung deutlich geringer.It is now advantageous to place a first crankshaft bearing or a first bearing point 21 between the one outer crank crank 11 and the inner crank crank 12 adjacent thereto and a second crankshaft bearing or a second bearing point 22 between the other outer crank crank 14 and the adjacent inner crank crank 13, the mass forces 41, 42 and 43, 44 relieve the bearing points 21 and 22. The mass forces 41, 42, 43, 44 still act as internal forces and stress the crankshaft 1 for bending and torsion, but their distribution is now more even and thus the deflection is significantly less.
Zum Ausgleich der rotierenden Massen genügen zwei Gegengewichte 31, 32 vor bzw. axial außen neben der einen äußeren Kurbelkröpfung 11 und nach bzw. axial außen neben der anderen äußeren Kurbelkröpfung 14. Die Masse eines dieser Gegengewichte 31, 32 entspricht ungefähr der Masse eines Gegengewichtes einer herkömmlichen Kurbelwelle mit acht Gegengewichten, so dass bei diesem Vergleich ein Gewichtsvorteil von sechs Gegengewichten zugunsten der erfindungsgemäßen Kurbelwelle 1 vorhanden ist.To compensate for the rotating masses, two counterweights 31, 32 in front of or axially outside next to the one outer crank crank 11 and after or axially outside next to the other outer crank crank 14 are sufficient. The mass of one of these counterweights 31, 32 corresponds approximately to the mass of a counterweight one conventional crankshaft with eight counterweights, so that in this comparison there is a weight advantage of six counterweights in favor of the crankshaft 1 according to the invention.
Wie in Fig. 1 dargestellt, hat das eine Gegengewicht 31 zum anderen Gegengewicht 32 einen Versatz von 180°. Dabei ist jedes Gegengewicht 31, 32 auch zur benachbarten äußeren Kurbelkröpfung 11 bzw. 14 um 180° versetzt angeordnet.As shown in Fig. 1, the one counterweight 31 to the other counterweight 32 has an offset of 180 °. Each counterweight 31, 32 is also offset by 180 ° from the adjacent outer crank crank 11 or 14.
Da gegenüber herkömmlichen Kurbelwellen die erfindungsgemäße Kurbelwelle 1 keine Lagerstellen vor bzw. axial außen neben der einen äußeren Kurbelkröpfung 11 und nach bzw. axial außen neben der anderen äußeren Kurbelkröpfung 14 aufweist, ergibt sich eine Verkürzung der Baulänge um zwei Lagerbreiten.Since, compared to conventional crankshafts, the crankshaft 1 according to the invention has no bearing points in front of or axially outside next to one outer crank crank 11 and after or axially outside next to the other outer crank crank 14, the overall length is shortened by two bearing widths.
Mit der Zündfolge 1-4-3-2 oder 1-2-3-4 liefert die Kurbelwelle 1 einen gleichmäßigen Zündabstand.With the firing sequence 1-4-3-2 or 1-2-3-4, the crankshaft 1 delivers an even firing interval.
Nach dieser Beschreibung weist die erfindungsgemäße Kurbelwelle 1 gegenüber einer herkömmlichen Kurbelwelle folgende Unterscheidungsmerkmale auf: - es fehlen die Kurbelwellenlager bzw. Lagerstellen vor der einen äußeren Kurbelkropfung 11 und nach der anderen äußeren Kurbelkropfung 14, damit reduziert sich die Baulange um zwei Lagerbreiten,According to this description, the crankshaft 1 according to the invention has the following distinguishing features from a conventional crankshaft: the crankshaft bearings or bearing points in front of the one outer crank shoulder 11 and after the other outer crank shoulder 14 are missing, so that the overall length is reduced by two bearing widths,
- es fehlt das Kurbelwellenlager bzw. die Lagerstelle zwischen den inneren Kurbelkropfungen 12 und 13,- The crankshaft bearing or the bearing point between the inner crank knobs 12 and 13 is missing,
- die eine innere Kurbelkropfung 12 ist zur anderen inneren Kurbelkropfung 13 um 180° versetzt,one crank crank 12 is offset from the other crank crank 13 by 180 °,
- die eine äußere Kurbelkropfung 11 ist zur benachbarten inneren Kurbelkropfung 12 wie auch zur anderen äußeren Kurbelkropfung 14 um 180° versetzt,one outer crank bolster 11 is offset from the adjacent inner crank bolster 12 as well as to the other outer crank bolster 14 by 180 °,
- zum vollständigen Ausgleich der rotierenden Massen genügen zwei Gegengewichte 31, 32, die zueinander um 180° versetzt sind, wobei hier die gesamte eingesetzte Ausgleichsmasse nur einen Bruchteil des bisherigen Aufwandes ausmacht,two counterweights 31, 32, which are offset from one another by 180 °, are sufficient to fully balance the rotating masses, the total balancing mass used making up only a fraction of the previous effort,
- die Zündfolge lautet 1-4-3-2 oder 1-2-3-4 und liefert gleiche Zundabstande,- the firing order is 1-4-3-2 or 1-2-3-4 and provides the same ignition spacing,
- die Gegengewichte 31, 32 sind nicht in unmittelbarer Nahe eines Kurbelwellenlagers angeordnet.- The counterweights 31, 32 are not arranged in the immediate vicinity of a crankshaft bearing.
Die erfindungsgemaße Kurbelwelle 1 ergibt geringste Lagerbelastung und ermöglicht dadurch eine Leistungssteigerung der damit ausgestatteten Kolbenmaschine sowie extremen Leichtbau.The crankshaft 1 according to the invention results in the lowest bearing load and thereby enables an increase in performance of the piston machine equipped with it and extremely lightweight construction.
Die erzielten Vorteile der Kurbelwelle 1 liegen beispielsweise im geringeren Gewicht, in der verkürzten Baulange, in der geringeren Lagerzahl, in der geringeren Reibleistung, in der geringeren Gerauschabstrahlung und m den geringeren Herstellkosten . The advantages achieved by the crankshaft 1 are, for example, the lower weight, the shorter construction length, the smaller number of bearings, the lower friction, the lower noise emission and the lower manufacturing costs.

Claims

Patentansprüche claims
1. Kurbelwelle für eine schnelllaufende Reihenvierzylinder- Kolbenmaschine, insbesondere Brennkraftmaschine, mit ausschließlich zwei Lagerstellen, nämlich einer ersten Lagerstelle (21) und einer zweiten Lagerstelle (22), und mit vier Kurbelkröpfungen, nämlich zwei äußeren Kurbelkröpfungen (11, 14) und zwei dazwischen angeordneten inneren Kurbelkröpfungen (12, 13), wobei die vier Kurbelkröpfungen (11,12,13,14) wenigstens annähernd in einer Ebene liegen, dadurch gekennzeichnet, dass die erste Lagerstelle (21) zwischen der äußeren Kurbelkröpfung (11) und der inneren Kurbelkröpfung (12) der einen Kurbelwellenseite und die zweite Lagerstelle (22) zwischen der äußeren Kurbelkröpfung (14) und der inneren Kurbelkröpfung (13) der anderen Kurbelwellenseite angeordnet ist, dass sämtliche benachbarten Kurbelkröpfungen (11,12,13,14) jeweils um 180° zueinander versetzt angeordnet sind, dass axial außen neben jeder äußeren Kurbelkröpfung (11, 14) ein Gegengewicht (31, 32) um 180° gegenüber der benachbarten Kurbelkröpfung (11, 14) versetzt angeordnet ist.1. Crankshaft for a high-speed in-line four-cylinder piston engine, in particular an internal combustion engine, with only two bearing points, namely a first bearing point (21) and a second bearing point (22), and with four crank crankings, namely two outer crank crankings (11, 14) and two in between arranged inner crank cranks (12, 13), the four crank cranks (11, 12, 13, 14) lying at least approximately in one plane, characterized in that the first bearing point (21) between the outer crank crank (11) and the inner crank crank (12) one crankshaft side and the second bearing point (22) is arranged between the outer crank crank (14) and the inner crank crank (13) of the other crankshaft side, that all adjacent crank crankshafts (11, 12, 13, 14) are each 180 ° apart are arranged offset to each other that a counterweight (31, 32) around each outer crank offset (11, 14) axially 180 ° offset from the adjacent crank crank (11, 14).
2. Verwendung einer Kurbelwelle nach Anspruch 1 in einer Kolbenmaschine .2. Use of a crankshaft according to claim 1 in a piston engine.
3. Kolbenmaschine, insbesondere Brennkraftmaschine, dadurch gekennzeichnet, dass die Kolbenmaschine eine Kurbelwelle (1) nach Anspruch 1 aufweist und dass die Kolbenmaschine ausschließlich zwei Kurbelwellenlager aufweist, in denen die Kurbelwelle (1) mit ihren Lagerstellen (21, 22) gelagert ist. 3. Piston engine, in particular internal combustion engine, characterized in that that the piston machine has a crankshaft (1) according to claim 1 and that the piston machine has only two crankshaft bearings in which the crankshaft (1) with its bearing points (21, 22) is mounted.
PCT/DE2000/002684 1999-08-21 2000-08-09 Crankshaft for a high-speed four-cylinder in-line reciprocating engine, especially an internal combustion engine WO2001014754A1 (en)

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DE20080161U DE20080161U1 (en) 1999-08-21 2000-08-09 Crankshaft for a high-speed in-line four-cylinder piston engine, especially an internal combustion engine

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DE1999139790 DE19939790C1 (en) 1999-08-21 1999-08-21 Crankshaft for a high-speed in-line four-cylinder piston engine, in particular an internal combustion engine
DE19939790.2 1999-08-21

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* Cited by examiner, † Cited by third party
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CN106246708A (en) * 2016-08-04 2016-12-21 广西玉柴机器股份有限公司 The crankshaft structure of v type eight cylinder engine

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Publication number Priority date Publication date Assignee Title
DE102011054881B9 (en) * 2011-10-27 2013-08-14 Entec Consulting Gmbh Crankshaft for a four-cylinder internal combustion engine and a four-cylinder internal combustion engine
DE102014118673A1 (en) * 2014-12-15 2016-06-16 Dr. Ing. H.C. F. Porsche Aktiengesellschaft crankshaft

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DE487753C (en) * 1927-08-04 1929-12-18 Moteurs Salmson Soc D Device for damping the vibrations of crankshafts
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US4901692A (en) * 1988-12-09 1990-02-20 Saturn Corporation Engine and low vibration crankshaft therefor

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US1574219A (en) * 1924-04-26 1926-02-23 Clinton L Walker Crank shaft
DE822036C (en) * 1949-07-29 1951-11-22 Stierlen Werke A G Crankshaft or the like assembled from several individual parts.
DE4321459A1 (en) * 1993-06-29 1995-01-12 Hyundai Motor Co Ltd Crankshaft for a V-6 internal combustion engine

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CN106246708A (en) * 2016-08-04 2016-12-21 广西玉柴机器股份有限公司 The crankshaft structure of v type eight cylinder engine

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DE20080161U1 (en) 2002-04-04

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