DE1002564B - Two-stroke engine with piston pin lubrication - Google Patents

Two-stroke engine with piston pin lubrication

Info

Publication number
DE1002564B
DE1002564B DEZ3954A DEZ0003954A DE1002564B DE 1002564 B DE1002564 B DE 1002564B DE Z3954 A DEZ3954 A DE Z3954A DE Z0003954 A DEZ0003954 A DE Z0003954A DE 1002564 B DE1002564 B DE 1002564B
Authority
DE
Germany
Prior art keywords
piston
piston pin
stroke engine
lubrication
bores
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.)
Pending
Application number
DEZ3954A
Other languages
German (de)
Inventor
Joseph Duerr
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.)
Zuendapp Werke GmbH
Original Assignee
Zuendapp Werke 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 Zuendapp Werke GmbH filed Critical Zuendapp Werke GmbH
Priority to DEZ3954A priority Critical patent/DE1002564B/en
Publication of DE1002564B publication Critical patent/DE1002564B/en
Pending 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
    • F01M3/00—Lubrication specially adapted for engines with crankcase compression of fuel-air mixture or for other engines in which lubricant is contained in fuel, combustion air, or fuel-air mixture
    • 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
    • F02B61/00—Adaptations of engines for driving vehicles or for driving propellers; Combinations of engines with gearing
    • F02B61/02—Adaptations of engines for driving vehicles or for driving propellers; Combinations of engines with gearing for driving cycles
    • 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
    • F02B75/02—Engines characterised by their cycles, e.g. six-stroke
    • F02B2075/022—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle
    • F02B2075/025—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle two

Landscapes

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

Description

DEUTSCHESGERMAN

Es ist bekannt, bei einem Zweitaktmotor den im Gemisch befindlichen ölnebel zur Schmierung des Kolbenbolzens zu verwenden-. Zu diesem Zweck sind sowohl in den Kolbenaugen als auch im Pleuelstangenkopf zum Kolbeninnenraum offene Bohrungen angeordnet, welche radial zum Kolbenbolzen hinführen. It is known, in a two-stroke engine, the oil mist in the mixture to lubricate the To use piston pin. This is done in both the piston bosses and the connecting rod head Bores open to the piston interior are arranged, which lead radially to the piston pin.

Es hat sich bei einer derartigen Anordnung der ölzuführung herausgestellt, daß die Schmierung des Kolbenbolzens nur ungenügend erfolgt. Dieses1 rührt daher, daß das nebeiförmig im Kolbeninnern befindliche Schmiermittel durch diese sackartig ausgebildeten ölzuführungsstellen in nicht genügender Menge an den Kolbenbolzen herangeführt wird.With such an arrangement of the oil supply it has been found that the lubrication of the piston pin is insufficient. This 1 stems from the fact that the lubricant located in the piston interior in the form of a fog is not supplied to the piston pin in sufficient quantities through these sack-like oil supply points.

Man kennt auch schon eine Schmierung des Kolbenbolzens durch tangential die Bohrungen in den Kolbenaugen anschneidende Schmierkanäle. Ebenso wie bei den vorstehend genannten bekannten Ausführungen besteht aber auch hier der Nachteil, daß diese ölzuführung zur Lagerung des Kolbenbolzens sackartig ist, so daß nicht in genügendem Maß das Schmiermittel herangeführt wird, falls eine einfache Schmierung durch ölnebel und nicht eine durch eine ölpumpe, die Drucköl auch zum Kolben führt, erfolgt.Lubrication of the piston pin through the bores in the tangential manner is also known Lubrication channels cutting into the piston eyes. As with the known designs mentioned above but there is also the disadvantage here that this oil supply for mounting the piston pin is sack-like is, so that the lubricant is not supplied to a sufficient extent, if a simple one Lubrication is carried out by oil mist and not by an oil pump that also supplies pressure oil to the piston.

Um diesem Nachteil abzuhelfen und eine einfache Einrichtung für eine ausreichende Schmierung des Kolbenbolzens zu schaffen, schlägt die Erfindung vor, daß die Schniierbohrungen beiderseitig offen sind und die zylindrische Lagerfläche für den Kolbenbolzen derart anschneiden,, daß sie in dieser jeweils eine Öffnung bilden. Aus dieser Anordnung ergibt sich die vorteilhafte Wirkungsweise, daß der im Kolbeninnenraum befindliche ölnebel bei jeder Auf- und Abwärtsbewegung des Kolbens infolge seiner Trägheit durch die Bohrungen hindurchgetrieben wird. Durch die schwingende Bewegung der Pleuelstange wird dieser Vorgang noch unterstützt. Vorteilhafterweise wird hiermit um so mehr öl sowohl den Lagerstellen des Kolbenbolzens im Kolben als auch den Berührungsflächen zwischen Pleuelstange und Kolbenbolzen zugeführt, je schneller sich der Kolben mit der Pleuelstange bewegt.In order to remedy this disadvantage and a simple device for adequate lubrication of the To create piston pin, the invention proposes that the Schniierbohrungen are open on both sides and cut the cylindrical bearing surface for the piston pin so that they each have one Form an opening. This arrangement results in the advantageous mode of action that the inside of the piston oil mist present with each up and down movement of the piston due to its inertia is driven through the holes. By the swinging movement of the connecting rod this process is still supported. In this way, the more oil is advantageously used in both the bearing points of the piston pin in the piston as well as the contact surfaces between the connecting rod and the piston pin the faster the piston moves with the connecting rod.

Der beschriebene Erfindungsgedanke wirkt sich besonders vorteilhaft aus, wenn die Bohrungen geradlinig und annähernd in der Laufrichtung des Kolbens verlaufen. Hierbei wird eine besonders günstige Zufuhr des Schmiermittels erreicht.The inventive concept described is particularly advantageous when the bores are straight and run approximately in the direction of travel of the piston. This is a particularly favorable supply of the lubricant reached.

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

Fig.'l einen Kolben mit Kolbenbolzen und Pleuelstange im Teilschnitt längs der Längsachse des Kolbenbolzens,Fig.'l a piston with piston pin and connecting rod in partial section along the longitudinal axis of the piston pin,

Fig. 2 einen Schnitt gemäß den Linien I-I bzw. Ι'-Γ in Fig. 1.Fig. 2 shows a section along the lines I-I and Ι'-Γ in Fig. 1.

Zweitaktmotor
mit einer KolbenbolzenschmierungTwo-stroke engine
with a piston pin lubrication

Anmelder:
Zündapp -WerkeApplicant:
Zündapp works

Gesellschaft mit beschränkter Haftung,
Nürnberg, Dieselstr. 10Company with limited liability,
Nuremberg, Dieselstr. 10

Joseph Dürr, Nürnberg,
ist als Erfinder genannt wordenJoseph Dürr, Nuremberg,
has been named as the inventor

Der Kolben 1 weist einen hülsenförmigen Kolbenbolzen 2 auf, der mittels der Federringe 3 im Kolben 1 gehalten wird. In der Pleuelstange 4 ist der Kolbenbolzen 2 gelagert. Die Bohrungen 5, 6 in den Kolbenaugen 5°, 6" und die Bohrungen 7, 8 in der Pleuelstange verlaufen tangential zum Kolbenbolzen und sind sowohl zu diesem, 5b, 6b, 7b, 8b, als auch an beiden Enden zum Kolbeninnenraum 9 hin offen.The piston 1 has a sleeve-shaped piston pin 2 which is held in the piston 1 by means of the spring washers 3. The piston pin 2 is mounted in the connecting rod 4. The holes 5, 6 in the piston eyes 5 °, 6 " and the holes 7, 8 in the connecting rod run tangentially to the piston pin and are both to this, 5 b , 6 b , 7 b , 8 b , and at both ends to Piston interior 9 open.

Fig. 2 läßt erkennen, in welcher Weise dem Kolbenbolzen an der Lagerung im Kolbenauge (s. rechte Hälfte der Fig. 2) bzw. an der Lagerung in der Pleuelstange (s. linke Hälfte der Fig. 2), wie mit Pfeilrichtung angedeutet, der ölnebel zugeführt wird. Diese günstige Anordnung der geradlinigen Bohrungen etwa in Laufrichtung des Kolbens ermöglicht es in besonders vorteilhafter Weise, daß bei jeder Auf- und Abwärtsbewegung des Kolbens eine möglichst große Menge des die Schmierung bewirkenden ölnebels durch die Bohrungen hindurchgetrieben und am Kolbenbolzen abgeschieden wird.Fig. 2 shows the way in which the piston pin on the bearing in the piston eye (see right Half of Fig. 2) or on the storage in the connecting rod (see. Left half of Fig. 2), as with Direction of the arrow indicated, the oil mist is supplied. This favorable arrangement of the straight bores approximately in the direction of travel of the piston makes it possible in a particularly advantageous manner that at each up and down movement of the piston as large as possible of the lubricating effect oil mist is driven through the bores and deposited on the piston pin.

Claims (2)

PATENTANSPRÜCHE:PATENT CLAIMS: 1. Zweitaktmotor mit einer Kolbenbolzenschmierung, bei welcher zum Kolbeninnenraum offene Bohrungen sowohl in den Kolbenaugen als auch im Pleuelstangenkopf vorgesehen sind, dadurch gekennzeiahnet, daß die Schmierbohrungen (5, 6, 7, 8) beiderseitig offen sind und die zylin-1. Two-stroke engine with piston pin lubrication, in which bores open to the piston interior are provided both in the piston eyes and in the connecting rod head, characterized in that the lubrication bores (5, 6, 7, 8) are open on both sides and the cylinder 609 770/200609 770/200 drische Lagerfläche für den Kolbenbolzen (2) derart anschneiden, daß sie in dieser jeweils eine öffnung ψ>, &>, 7b, 86) bilden.Cut the drical bearing surface for the piston pin (2) in such a way that they each form an opening ψ>, &>, 7 b , 8 6 ) in this. 2. Zweitaktmotor nach Anspruch 1, dadurch gekennzeichnet, daß die Bohrungen (5, 6, 7, 8) geradlinig und annähernd in der Laufrichtung des Kolbens (1) verlaufen.2. Two-stroke engine according to claim 1, characterized in that that the bores (5, 6, 7, 8) straight and approximately in the direction of the Pistons (1) run. In Betracht gezogene Druckschriften: USA-Patentschrift Nr. 2 523 699.References considered: U.S. Patent No. 2,523,699. Hierzu 1 Blatt Zeichnungen1 sheet of drawings © 609 770/200 2.57© 609 770/200 2.57
DEZ3954A 1954-01-26 1954-01-26 Two-stroke engine with piston pin lubrication Pending DE1002564B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEZ3954A DE1002564B (en) 1954-01-26 1954-01-26 Two-stroke engine with piston pin lubrication

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEZ3954A DE1002564B (en) 1954-01-26 1954-01-26 Two-stroke engine with piston pin lubrication

Publications (1)

Publication Number Publication Date
DE1002564B true DE1002564B (en) 1957-02-14

Family

ID=7618973

Family Applications (1)

Application Number Title Priority Date Filing Date
DEZ3954A Pending DE1002564B (en) 1954-01-26 1954-01-26 Two-stroke engine with piston pin lubrication

Country Status (1)

Country Link
DE (1) DE1002564B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4550647A (en) * 1982-05-28 1985-11-05 Societe D'etudes De Machines Thermiques (Semt) Piston pin and piston, notably for an internal combustion engine, equipped with said pin

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2523699A (en) * 1946-08-21 1950-09-26 Harry Ralph Ricardo Piston

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2523699A (en) * 1946-08-21 1950-09-26 Harry Ralph Ricardo Piston

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4550647A (en) * 1982-05-28 1985-11-05 Societe D'etudes De Machines Thermiques (Semt) Piston pin and piston, notably for an internal combustion engine, equipped with said pin

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