DE3217352C2 - Connecting rods for reciprocating internal combustion engines - Google Patents

Connecting rods for reciprocating internal combustion engines

Info

Publication number
DE3217352C2
DE3217352C2 DE19823217352 DE3217352A DE3217352C2 DE 3217352 C2 DE3217352 C2 DE 3217352C2 DE 19823217352 DE19823217352 DE 19823217352 DE 3217352 A DE3217352 A DE 3217352A DE 3217352 C2 DE3217352 C2 DE 3217352C2
Authority
DE
Germany
Prior art keywords
connecting rod
piston
pin
bore
rod eye
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
DE19823217352
Other languages
German (de)
Other versions
DE3217352A1 (en
Inventor
Manfred 7140 Ludwigsburg Bauer
Jürgen Dipl.-Ing. 7300 Esslingen Feucht
Dieter 7000 Stuttgart Lingenhölin
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.)
Mahle GmbH
Original Assignee
Mahle GmbH
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 Mahle GmbH filed Critical Mahle GmbH
Priority to DE19823217352 priority Critical patent/DE3217352C2/en
Priority to EP83104154A priority patent/EP0095052B1/en
Priority to DE8383104154T priority patent/DE3374803D1/en
Publication of DE3217352A1 publication Critical patent/DE3217352A1/en
Application granted granted Critical
Publication of DE3217352C2 publication Critical patent/DE3217352C2/en
Expired legal-status Critical Current

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
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J1/00—Pistons; Trunk pistons; Plungers
    • F16J1/10—Connection to driving members
    • F16J1/14—Connection to driving members with connecting-rods, i.e. pivotal connections
    • F16J1/16—Connection to driving members with connecting-rods, i.e. pivotal connections with gudgeon-pin; Gudgeon-pins
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M1/00—Pressure lubrication
    • F01M1/06—Lubricating systems characterised by the provision therein of crankshafts or connecting rods with lubricant passageways, e.g. bores
    • 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
    • F16N—LUBRICATING
    • F16N7/00—Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated
    • F16N7/36—Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated with feed by pumping action of the member to be lubricated or of a shaft of the machine; Centrifugal lubrication

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
  • Pistons, Piston Rings, And Cylinders (AREA)

Description

Die Erfindung betrifft ein Pleuel für Hubkolben-Verbrennungsmotoren nach dem Oberbegriff des Anspruchs 1.The invention relates to a connecting rod for reciprocating internal combustion engines according to the preamble of claim 1.

Ein solches Pleuel isi ausder FR-PS 3 66 918 bekannt.Such a connecting rod is known from FR-PS 3 66 918.

Die im Pleuellager vorgesehener Längsnuten haben den Zweck, das unter Druck in das Pleuel eingeführte öl an die Naben des Kolbens heranzuführen, um diese dadurch zu kühlen.The purpose of the longitudinal grooves provided in the connecting rod bearing is to keep the oil introduced into the connecting rod under pressure bring them up to the hubs of the piston in order to cool them down.

Hiervon ausgehend liegt der Erfindung die Aufgabe zugrunde, die Kühiwirkung noch weiter zu verbessern.Proceeding from this, the invention is based on the object of improving the cooling effect even further.

Gelöst wird diese Aufgabe durch eine Anordnung des Pleuelauges zwischen den Naben des Kolbens nach den Merkmalen des kennzeichnenden Teils des Anspruchs i.This task is achieved by arranging the connecting rod eye between the hubs of the piston after the Features of the characterizing part of claim i.

Durch den erfindungsgemäß vorgesehenen geringeren Abstand zwischen Pleuelkopf und Naben unterhalb der Bolzenachse gelangt das Kühlöl bevorzugt in den oberen Bereich der Naben, der wegen der dort vom Kolbenbodenbereich besonders stark einfließenden Wärme besonders intensiv gekühlt werden muß, damit die erforderliche Festigkeit des Nabenwerkstoffes erhalten werden kann.Due to the smaller distance provided according to the invention between the connecting rod head and the hub below the bolt axis, the cooling oil preferably reaches the upper area of the hubs, which because of the there from The piston crown area must be cooled particularly intensively so that the heat flowing in is particularly strong the required strength of the hub material can be obtained.

Besonders günstige Ergebnisse lassen sich mit den in Anspruch 2 angegebenen Abstandsmaßen erzielen.Particularly favorable results can be achieved with the spacing dimensions specified in claim 2.

Eine relativ enge Führung des Pleuelkopfes in den Naben des Kolbens ist zwar bereits aus DE-GM 76 27 154 bekannt, jedoch ist dort der Abstand zwischen Pleuelkopf und Kolbennaben über den gesamten Nabenumfang trotz teils konischer und teils paralleler Abstützung insgesamt gleich.A relatively close guidance of the connecting rod head in the hubs of the piston is already from DE-GM 76 27 154 known, but there the distance between the connecting rod head and the piston boss is over the entire length Overall hub circumference is the same despite partly conical and partly parallel support.

Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt Es zeigtAn embodiment of the invention is shown in the drawing. It shows

F i g. 1 einen Längsschnitt des oberen Pleuelauges mit angrenzendem Pleuelstangen-Bereich undF i g. 1 shows a longitudinal section of the upper connecting rod eye with the adjacent connecting rod area and

Fig.2 einen Schnitt durch das Pleuel entlang Linie H-II zusammen mit einem entsprechenden Schnitt durch den an das Pleuel angelenkten Kolben.2 shows a section through the connecting rod along a line H-II together with a corresponding section through the piston hinged to the connecting rod.

Das Pleuelauge 1 ist über einen in der Pleuelbohrung 2 geführten nicht dargestellten Bolzen an den Kolben 3 angelenkt. In dem Kolben 3 ist der nicht dargestellte Bolzen in der Nabenbohrung 4 gelagert. Das von der Kurbelwelle unter Druck herangeführte Kühlöl gelangt über die in der Pleuelstange vorgesehene Bohrung 5 in die in der Pleuelaugqnbohrung vorgesehene Ringnut 6. Von dort strömt das Öl durch die beiden Längsnuten 7 an die Naben 8 des Kolbens 3.The connecting rod eye 1 is attached to the piston 3 via a bolt, not shown, which is guided in the connecting rod bore 2 hinged. In the piston 3, the bolt (not shown) is mounted in the hub bore 4. That of the Cooling oil supplied to the crankshaft under pressure passes through the bore 5 provided in the connecting rod the annular groove 6 provided in the connecting rod eye bore. From there, the oil flows through the two longitudinal grooves 7 to the hubs 8 of the piston 3.

Das dargestellte Pleuel ist in Bolzenachsrichtung zwischen den Naben 8 geführt, und zwar in den jeweils unterhalb der Bolzenachse liegenden Bereichen der Naben 8. In den oberhalb der Bolzenachse liegenden Bereichen ist dagegen ein größeres Spiel vorgesehen. Der Abstand in dem Bereich unterhalb der Bolzenachse beträgt in den vorliegenden Beispielen zwischen Nabe 8 und Pleuelauge 1 etwa 0,05 mm. Der entsprechende Abstand in dem Bereich oberhalb der Bolzennabe liegt bei etwa 03 bis 0,7 mm. Der größere Abstand in dem Bereich oberhalb der Bolzennabe bewirkt, daß das Kühlöl bevorzugt in Richtung zum Kolbenboden abströmt. Dadurch wird zusätzlich zu der Kühlung der Bolzennaben und des Bolzens auch noch eine Kühlung des Kolbenbodens erzielt. Die beiden Längsnuten 7 sind jeweils in einem Winkel von 65° zum Zenit der Pleuelaugenbohrung 2 angebracht.The connecting rod shown is guided in the direction of the axis of the bolt between the hubs 8, specifically in the respective Areas of the hubs 8 lying below the bolt axis. In the areas above the bolt axis A larger game is planned for areas. The distance in the area below the bolt axis is in the present examples between hub 8 and connecting rod 1 about 0.05 mm. The corresponding The distance in the area above the pin hub is about 03 to 0.7 mm. The greater distance in that The area above the pin boss means that the cooling oil is preferentially directed towards the piston crown flows off. As a result, in addition to cooling the pin hubs and the pin, there is also cooling achieved the piston crown. The two longitudinal grooves 7 are each at an angle of 65 ° to the zenith of the Connecting rod eye hole 2 attached.

Hierzu 1 Blatt Zeichnungen1 sheet of drawings

Claims (2)

Patentansprüche:Patent claims: 1. Pleuel für Hubkolben-Verbrennungsmotoren mit unter Druck zugeführtem Öl in das obere, den Kolbenbolzen umfassende Pleuelauge, in dessen den Kolbenbolzen aufnehmenden Bohrung eine umlaufende Ringnut das zugeführte öl für den Bohrungsumfang führt und bei dem in dieser Bohrung mindestens eine in Bolzenlängsrichtung ausgerichtete, die gesamte Breite des Pleuelauges erfassende Längsnut in der über der durch die Bolzenachse verlaufenden Horizontalebene liegenden Hälfte der Bohrung vorgesehen ist, dadurch gekennzeichnet, daß die Seitenflächen des oberen Pleuelauges (1) von den Bolzennaben (8) des Kolbens (3) in dem über der Bolzenachse liegenden Bereich einen größeren Abstand haben als in dem unterhalb der Bolzenachse liegenden Bereich.1. Connecting rods for reciprocating internal combustion engines with oil supplied under pressure into the upper, den Piston pin encompassing connecting rod eye, in which the piston pin receiving bore a circumferential Ring groove the oil supplied for the circumference of the bore leads and in which in this bore at least one aligned in the longitudinal direction of the bolt, the entire width of the connecting rod eye in the longitudinal groove above the one through the bolt axis running horizontal plane lying half of the bore is provided, characterized in that that the side surfaces of the upper connecting rod eye (1) from the pin boss (8) of the piston (3) in the one above the pin axis Area a greater distance than in the area below the bolt axis. 2. Pleuel nach Anspruch 1, dadurch gekennzeichnet, daß1 der Abstand der Seitenflächen des Pleuelauges (1) zu den Bolzennaben (4) des Kolbens (3) in dem unterhalb der Bolzenachse liegenden Bereich zwischen etwa 0,03 und 0.07 mm und in dem oberhalb der Bolzenachse liegenden Bereich zwischen etwa 03 und \2 mm beträgt.2. Connecting rod according to claim 1, characterized in that 1 is the distance between the side surfaces of the connecting rod eye (1) and the pin bosses (4) of the piston (3) in the area below the pin axis between about 0.03 and 0.07 mm and in that above the bolt axis is between about 03 and \ 2 mm.
DE19823217352 1982-05-08 1982-05-08 Connecting rods for reciprocating internal combustion engines Expired DE3217352C2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE19823217352 DE3217352C2 (en) 1982-05-08 1982-05-08 Connecting rods for reciprocating internal combustion engines
EP83104154A EP0095052B1 (en) 1982-05-08 1983-04-28 Piston-connecting rod connection for reciprocating piston internal-combustion engines
DE8383104154T DE3374803D1 (en) 1982-05-08 1983-04-28 Piston-connecting rod connection for reciprocating piston internal-combustion engines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19823217352 DE3217352C2 (en) 1982-05-08 1982-05-08 Connecting rods for reciprocating internal combustion engines

Publications (2)

Publication Number Publication Date
DE3217352A1 DE3217352A1 (en) 1983-12-15
DE3217352C2 true DE3217352C2 (en) 1984-03-22

Family

ID=6163088

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19823217352 Expired DE3217352C2 (en) 1982-05-08 1982-05-08 Connecting rods for reciprocating internal combustion engines

Country Status (1)

Country Link
DE (1) DE3217352C2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4342044B4 (en) * 1993-12-09 2006-08-31 Mahle Gmbh Piston for an internal combustion engine

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR366918A (en) * 1906-06-06 1906-10-16 Daimler Motoren Engine lubrication system with crankshafts
US1922707A (en) * 1932-03-01 1933-08-15 Ingersoll Rand Co Oiling device
DE928021C (en) * 1950-10-25 1955-05-23 Heinrich Christiansen Dipl Ing Device for lubricating the bearings of piston engines with a closed crankcase
US4056044A (en) * 1975-11-12 1977-11-01 Caterpillar Tractor Co. Oil cooled piston

Also Published As

Publication number Publication date
DE3217352A1 (en) 1983-12-15

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Legal Events

Date Code Title Description
OP8 Request for examination as to paragraph 44 patent law
D2 Grant after examination
8364 No opposition during term of opposition