DE724840C - Piston pin bearings for working pistons of internal combustion engines using one-piece, elastic bushings - Google Patents

Piston pin bearings for working pistons of internal combustion engines using one-piece, elastic bushings

Info

Publication number
DE724840C
DE724840C DEJ67092D DEJ0067092D DE724840C DE 724840 C DE724840 C DE 724840C DE J67092 D DEJ67092 D DE J67092D DE J0067092 D DEJ0067092 D DE J0067092D DE 724840 C DE724840 C DE 724840C
Authority
DE
Germany
Prior art keywords
piston pin
internal combustion
combustion engines
piece
piston
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.)
Expired
Application number
DEJ67092D
Other languages
German (de)
Inventor
Manfred Gerlach
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Airbus Defence and Space GmbH
Original Assignee
Messerschmitt Bolkow Blohm AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Messerschmitt Bolkow Blohm AG filed Critical Messerschmitt Bolkow Blohm AG
Priority to DEJ67092D priority Critical patent/DE724840C/en
Application granted granted Critical
Publication of DE724840C publication Critical patent/DE724840C/en
Expired legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16JPISTONS; CYLINDERS; SEALINGS
    • F16J1/00Pistons; Trunk pistons; Plungers
    • F16J1/10Connection to driving members
    • F16J1/14Connection to driving members with connecting-rods, i.e. pivotal connections
    • F16J1/16Connection to driving members with connecting-rods, i.e. pivotal connections with gudgeon-pin; Gudgeon-pins

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Pistons, Piston Rings, And Cylinders (AREA)

Description

Kolbenbolzenlagerung für Arbeitskolben von Brennkraftmaschinen unter Verwendung einteiliger, elastischer Büchsen Die Axbieitskolben von Brennkraftmaschinen sind in dem zur Lagerung des Kolbenbolzens vorgesehenen Auge ganz besonderen Belastungen ausgesetzt, die durch die wechselseitige Beanspruchung des Kolbenmaterials an dieser Stelle durch den Kolbenbolzen 'hervorgerufen werden. Diese Beanspruchungen sind unter Umständen dann gefährlich, wenn bei dem gewöhnlichen Metallkolben das Material am Kolhenbolzenauge aus konstruktiven Gründen besonders schwach bemessen ist oder wenn für den Arbeitskolhen überhaupt ein Werkstoff gewählt wird, der die auftretenden Beanspruchungen nicht :ohne weiteres aufzunehmen vermag. Für solche Kolben erweist sich die starre Lagerung des Kolbenholzens als nachteilig.Piston pin bearings for working pistons of internal combustion engines Use of one-piece, elastic bushings The Axbieits piston of internal combustion engines are very special loads in the eye provided for mounting the piston pin exposed by the reciprocal stress on the piston material on this Place caused by the piston pin '. These stresses are under certain circumstances dangerous if the material used in the ordinary metal piston on the piston pin eye is particularly weak for structural reasons or if a material is chosen for the working kolhen at all, which is the occurring Stresses not: able to absorb without further ado. For such flasks it turns out the rigid mounting of the piston wood is disadvantageous.

Es ist bereits versucht worden, die Koibenbolzenaugen gegen die während des Betriebes in schneller Aufeinanderfolge und bei raschem Richtungswechsel auftretenden Druck- und Zugbeanspruchungen des Kolbenbolzens durch Zwischenlage einer massiven, aus nichtmetallischem, schwingungsdämpfendem Werkstoff bestehenden Lagerbüchse zu schützen. Dabei ist jedoch unberücksichtigt geblieben, daß das Kolbenbolzenauge außer den rasch wechselnden Druck- und Zugbeanspruchungen durch den Kolbenbolzen, die sich bei modernen Brennkraftmaschinen mit hoher Drehzahl als Schwingungen auswirken können, vor allem auch Biegungsbieanspruchungen entsprechend der jeweiligen Durchbiegung des Kolbenbolzens während des Arbeite- bzw. Verdichtungshubes unterworfen ist, gegen die :eine massive Lagerbüchse aus schwingungsdämpfendem Werkstoff es nicht schützen kann.Attempts have already been made to keep the Koibenbolzenaugen against the during of operation occurring in quick succession and with a rapid change of direction Compressive and tensile loads on the piston pin through the interposition of a massive, made of non-metallic, vibration-damping material protection. However, it has not been taken into account that the piston pin boss apart from the rapidly changing compressive and tensile loads caused by the piston pin, which affect modern internal combustion engines with high speed as vibrations can, especially bending stresses according to the respective deflection of the piston pin is subject to during the work or compression stroke, against which: a massive bearing bush made of vibration-damping material does not protect it can.

Aufgabe der Erfindung ist es, eine K:olbenbolzenlägerung zu schaffen, durch welche die während des Betriebes einer Brennkraftmaschine, d. h. während des Arbeits- und Verdichtungshubes des Kolbens, infolge Durchbiegung des Kolbenbolzens auftretenden, in bezug auf das Kolbenbolzenauge schräg gerichteten Kräfte in Normalkräfte umgewandelt werden.The object of the invention is to create a piston pin mounting, by which the during the operation of an internal combustion engine, d. H. during the working and compression stroke of the piston, due to deflection of the piston pin occurring, inclined with respect to the piston pin boss Forces can be converted into normal forces.

Diese Aufgabe wird unter Verwendung einteiliger elastischer Büchsen erfindungsgemäß dadurch gelöst, daß die formelastischen Büchsen von zwei gleichachsigen Hohlzylindern verschiedenen Durchmessers gebildet sind, die stirnseitig an ringförmigen Flanschen sitzen, wobei diese sich nach Einsetzen der Büchsen von innen gegen die Kolbenbolzenaugen anlegen und die Länge der Büchsen in axialer Richtung begrenzen.This task is accomplished using one-piece elastic bushings solved according to the invention in that the form-elastic bushes of two equiaxed Hollow cylinders of different diameters are formed which are annular on the end face Flanges sit, which are after inserting the bushes from the inside against the Put on piston pin bosses and limit the length of the bushes in the axial direction.

In der Zeichnung ist ein Ausführungsbeispiel des Erfindungsgegenstandes dargestellt. In einem Arbeitskolben 4. einer Brennkraftmaschine ist ein Kolbenbolzen i im Kolben. bolzenauge 3 derart gelagert, daß nicht nur die im Betrieb unter ständigem Richtungswechsel auftretenden und über den Kolbenbolzen i übertragenen Druck- und Zugkräfte gedämpft, sondern vor allem die infolge der Durchbiegung des Kolbenbolzens i beim Arbeits- und Verdichtungshub des Kolbens 4 auftretenden schräg gerichteten Kräfte in Normalkräfte umgewandelt werden. Das Fernhalten dieser in rascher Aufeinanderfolge in ihrer Richtung wechselnden schräg gerichteten Kräfte vom Kolbenbolzenauge 3, die sich sonst als gefährliche Biegungsbeanspruchungen im Kolbenbolzenauge 3 bemerkbar machen würden, wird gemäß der Erfindung durch die Zwischenlage einer formelastischer. Büchse 5 zwischen Kolbenbolzen i und Kolbenbolzenauge 3 erreicht. Die Büchsen 5 sind dabei so ausgebildet, daß sie bequem von innen in das Kolbenbolzenauge 3 eingesetzt werden können, wobei gleichzeitig ihre axiale Lage durch Anschlag ihres einen als Ringflansch z ausgebildeten Endes an der -Innenwandung 7 des Kolbens begrenzt ist.The drawing shows an exemplary embodiment of the subject matter of the invention shown. A piston pin is located in a working piston 4. of an internal combustion engine i in the flask. Bolt eye 3 mounted in such a way that not only those in operation under constant Change of direction occurring and transmitted via the piston pin i pressure and Tensile forces are dampened, but mainly those due to the deflection of the piston pin i during the working and compression stroke of the piston 4 occurring obliquely Forces can be converted into normal forces. Keeping these away in quick succession obliquely directed forces from the piston pin boss 3, which change in their direction, which would otherwise be noticeable as dangerous bending stresses in the piston pin boss 3 would make, is according to the invention by the intermediate layer of a shape elastic. Bushing 5 between piston pin i and piston pin boss 3 reached. The cans 5 are designed so that they are easily inserted into the piston pin boss 3 from the inside can be, at the same time their axial position by stopping their one as Ring flange z formed end on the inner wall 7 of the piston is limited.

Claims (1)

PATENTANSPRUCH Kolbenbolzenlagerung für Arbeitskolben von Brennkraftmaschinen unter Verwendung einteiliger elastischer Büchsen, dadurch gekennzeichnet, daß die formelastischen Büchsen (5,1 von zwei gleichachsigen Hohlzylindern verschiedenen Durchmessers gebildet sind, die stirnseitig an ringförmigen Flanschen sitzen, wobei diese sich nach Einsetzen der Büchsen von innen gegen die Kolbenbolzenaugen am Kolben anlegen und die Lage der Büchsen in axialer Richtung begrenzen.PATENT CLAIM Piston pin bearings for working pistons of internal combustion engines using one-piece elastic bushings, characterized in that the form-elastic bushings (5.1 different from two equiaxed hollow cylinders Diameter are formed, which sit on the end face of annular flanges, wherein After inserting the bushings, these are against the piston pin bosses on the inside of the piston apply and limit the position of the bushes in the axial direction.
DEJ67092D 1940-05-28 1940-05-28 Piston pin bearings for working pistons of internal combustion engines using one-piece, elastic bushings Expired DE724840C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEJ67092D DE724840C (en) 1940-05-28 1940-05-28 Piston pin bearings for working pistons of internal combustion engines using one-piece, elastic bushings

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEJ67092D DE724840C (en) 1940-05-28 1940-05-28 Piston pin bearings for working pistons of internal combustion engines using one-piece, elastic bushings

Publications (1)

Publication Number Publication Date
DE724840C true DE724840C (en) 1942-09-07

Family

ID=7207976

Family Applications (1)

Application Number Title Priority Date Filing Date
DEJ67092D Expired DE724840C (en) 1940-05-28 1940-05-28 Piston pin bearings for working pistons of internal combustion engines using one-piece, elastic bushings

Country Status (1)

Country Link
DE (1) DE724840C (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1237838B (en) * 1961-11-17 1967-03-30 Marcel Justinien Power unit for internal combustion engines with piston and connecting rod
DE3243939A1 (en) * 1982-11-26 1984-05-30 MTU Motoren- und Turbinen-Union München GmbH, 8000 München Piston/piston rod bearing arrangement
DE4141135A1 (en) * 1991-12-13 1993-06-17 Man Nutzfahrzeuge Ag CONNECTING THE CONNECTING ROD AND PISTON
DE4141281A1 (en) * 1991-12-14 1993-06-17 Mahle Gmbh Light metal piston for IC engine - has curved leaf spring elements, held in groove in circumference of bores of hubs to load gudgeon pin

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1237838B (en) * 1961-11-17 1967-03-30 Marcel Justinien Power unit for internal combustion engines with piston and connecting rod
DE3243939A1 (en) * 1982-11-26 1984-05-30 MTU Motoren- und Turbinen-Union München GmbH, 8000 München Piston/piston rod bearing arrangement
DE4141135A1 (en) * 1991-12-13 1993-06-17 Man Nutzfahrzeuge Ag CONNECTING THE CONNECTING ROD AND PISTON
DE4141281A1 (en) * 1991-12-14 1993-06-17 Mahle Gmbh Light metal piston for IC engine - has curved leaf spring elements, held in groove in circumference of bores of hubs to load gudgeon pin

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