CH191291A - Process for the production of piston rings with a slightly conical outer surface. - Google Patents

Process for the production of piston rings with a slightly conical outer surface.

Info

Publication number
CH191291A
CH191291A CH191291DA CH191291A CH 191291 A CH191291 A CH 191291A CH 191291D A CH191291D A CH 191291DA CH 191291 A CH191291 A CH 191291A
Authority
CH
Switzerland
Prior art keywords
piston rings
piston
rings
production
slightly conical
Prior art date
Application number
Other languages
German (de)
Inventor
Isler Fritz
Original Assignee
Isler Fritz
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 Isler Fritz filed Critical Isler Fritz
Publication of CH191291A publication Critical patent/CH191291A/en

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
    • F16J9/00Piston-rings, e.g. non-metallic piston-rings, seats therefor; Ring sealings of similar construction
    • 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
    • F16J9/00Piston-rings, e.g. non-metallic piston-rings, seats therefor; Ring sealings of similar construction
    • F16J9/12Details
    • F16J9/20Rings with special cross-section; Oil-scraping rings

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Pistons, Piston Rings, And Cylinders (AREA)

Description

  

  Verfahren zur Erzeugung von Kolbenringen mit schwach konischer     Mantelfläche.       Bei einfach wirkenden     Expfosionsmotoren,     namentlich bei Automobilmotoren, wo hohe  Tourenzahlen auftreten, wird das Schmieröl  im Kurbelgehäuse von der Kurbelwelle gegen  die Zylinderwand geschleudert, haftet an der  selben fest und wird beim Saughub durch  den Unterdruck im Zylinder in den Explosions  raum gesaugt, auch wenn die Kolbenringe gut  an der Zylinderwand anliegen.  



  Um diesem Übelstand abzuhelfen, führt  man oft die Mantelfläche der Kolbenringe  schwach konisch aus und setzt die Ringe so  in den Kolben ein, dass sie mit der     kurbel-          seitigen    Kante anliegen und so das 01 von  der Zylinderwand abschaben.  



  Bisher hat man die Ringe einzeln aufge  spannt und aussen konisch überdreht.  Gegenstand der Erfindung ist ein Ver  fahren, das erlaubt, solche Ringe mit schwach  konischer Mantelfläche billig herzustellen.  Das Verfahren gemäss der Erfindung be  steht darin, dass der Ring zwischen zwei  Scheiben mit konischer Stirnfläche einge  spannt und an der Mantelfläche zylindrisch ab-    gedreht wird. Beim Entspannen des Ringes  wird dann die äussere Mantelfläche konisch.  



  Von Vorteil ist dieses Verfahren besonders,  wenn mehrere Ringe gleichzeitig zwischen den  beiden Scheiben eingespannt sind, um ihre  Mantelflächen abzudrehen. Auf ein und den  selben Dorn können zwischen die Ringe     kege-          lige    Scheiben eingelegt werden, um mehr  Kolbenringe in einem Arbeitsgang fertigstellen  zu können.  



  Ob dabei die Bearbeitung der Kolbenringe  aussen nach einem Kreiszylinder oder nach  einer Schablone erfolgt, ist gleichgültig.  



  In den     Fig.    1 und 2 sind     Vorrichtungen     zur Ausführung des Verfahrens beispielsweise  dargestellt;       Fig.    3 zeigt die Stellung eines Kolben  ringes 3 während der Bearbeitung der Mantel  fläche;       Fig.    4 zeigt den Kolbenring nach der Be  arbeitung der Mantelfläche in entspanntem  Zustande.  



  In     Fig.    1 sind auf einem Drehdorn 1 zu  beiden Seiten der Kolbenringe 3 zwei äussere      Scheiben 2 mit konischer Stirnfläche vorge  sehen.  



  In     Fig.    2 sind auf dem Drehdorn 1 noch  zwischen den Kolbenringen 3 mehrere teller  förmige Zwischenscheiben 2 angeordnet.  



  Um den richtigen Einbau der Ringe in den  Kolben zu erleichtern, werden die Kolben  ringe zweckmässig auf einer Stirnfläche ge  zeichnet.



  Process for the production of piston rings with a slightly conical outer surface. In single-acting explosion engines, especially in automobile engines where high revs occur, the lubricating oil in the crankcase is thrown by the crankshaft against the cylinder wall, adheres to it and is sucked into the explosion chamber during the suction stroke by the negative pressure in the cylinder, even if the The piston rings make good contact with the cylinder wall.



  To remedy this inconvenience, the outer surface of the piston rings is often designed to be slightly conical and the rings are inserted into the piston in such a way that the edge on the crank side lies against them and thus scrapes the oil off the cylinder wall.



  So far, the rings have been stretched individually and turned conically on the outside. The subject of the invention is a Ver drive that allows such rings with a slightly conical outer surface to be produced cheaply. The method according to the invention consists in that the ring is clamped between two disks with a conical face and turned off cylindrically on the outer surface. When the ring is relaxed, the outer surface becomes conical.



  This method is particularly advantageous when several rings are clamped between the two disks at the same time in order to turn off their outer surfaces. Conical disks can be inserted between the rings on one and the same mandrel in order to be able to finish more piston rings in one operation.



  It does not matter whether the piston rings are machined on the outside using a circular cylinder or a template.



  In Figs. 1 and 2 devices for performing the method are shown, for example; Fig. 3 shows the position of a piston ring 3 during the machining of the jacket surface; Fig. 4 shows the piston ring after loading the surface area in a relaxed state.



  In Fig. 1, two outer discs 2 with a conical end face are provided on a rotating mandrel 1 on both sides of the piston rings 3.



  In Fig. 2, several plate-shaped washers 2 are arranged on the mandrel 1 between the piston rings 3.



  In order to facilitate the correct installation of the rings in the piston, the piston rings are conveniently drawn on an end face.

 

Claims (1)

PATENTANSPRUCH: Verfahren zur Erzeugung von Kolbenrin gen mit schwach konischer Mantelfläche, da durch gekennzeichnet, dass der Kolbenring zwischen zwei Scheiben mit konischen Stirn flächen eingespannt und an der Mantelfläche zylindrisch abgedreht wird. UNTERANSPRüCHE 1. Verfahren nach Patentanspruch, dadurch gekennzeichnet, dass zwischen den beiden Scheiben gleichzeitig mehrere Kolbenringe eingespannt werden. 2. Verfahren nach Unteranspruch 1, dadurch gekennzeichnet, dass auf einen Drehdorn zwischen die eingespannten Kolbenringe mindestens eine tellerförmige Zwischen scheibe eingelegt wird. 3. Verfahren nach Patentanspruch, dadurch gekennzeichnet, dass die Kolbenringe zum Erleichtern des richtigen Einbaues in den Kolben auf einer Stirnfläche gezeichnet werden. PATENT CLAIM: Process for the production of piston rings with a slightly conical outer surface, characterized in that the piston ring is clamped between two discs with conical end faces and turned off cylindrically on the outer surface. SUBClaims 1. The method according to claim, characterized in that several piston rings are clamped between the two disks at the same time. 2. The method according to dependent claim 1, characterized in that at least one plate-shaped intermediate disk is inserted on a rotating mandrel between the clamped piston rings. 3. The method according to claim, characterized in that the piston rings are drawn on an end face to facilitate correct installation in the piston.
CH191291D 1936-06-18 1936-06-18 Process for the production of piston rings with a slightly conical outer surface. CH191291A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH191291T 1936-06-18

Publications (1)

Publication Number Publication Date
CH191291A true CH191291A (en) 1937-06-15

Family

ID=4437530

Family Applications (1)

Application Number Title Priority Date Filing Date
CH191291D CH191291A (en) 1936-06-18 1936-06-18 Process for the production of piston rings with a slightly conical outer surface.

Country Status (1)

Country Link
CH (1) CH191291A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3036838A (en) * 1959-09-08 1962-05-29 Gleason Works Chuck for ring gear or like part
DE102005023620A1 (en) * 2005-05-21 2006-11-23 Federal-Mogul Burscheid Gmbh Method for manufacture of lamella-like sealing element, especially oil wiper ring in internal combustion engine, entails forming steel band into disc spring-form ring and axially elastically tensioning it flat before working it

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3036838A (en) * 1959-09-08 1962-05-29 Gleason Works Chuck for ring gear or like part
DE102005023620A1 (en) * 2005-05-21 2006-11-23 Federal-Mogul Burscheid Gmbh Method for manufacture of lamella-like sealing element, especially oil wiper ring in internal combustion engine, entails forming steel band into disc spring-form ring and axially elastically tensioning it flat before working it
DE102005023620B4 (en) * 2005-05-21 2010-06-02 Federal-Mogul Burscheid Gmbh Process for producing lamellar sealing elements and lamellar sealing element

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