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DE3305385C1 - Piston ring which is arranged in an annular groove of a piston - Google Patents

Piston ring which is arranged in an annular groove of a piston

Info

Publication number
DE3305385C1
DE3305385C1 DE19833305385 DE3305385A DE3305385C1 DE 3305385 C1 DE3305385 C1 DE 3305385C1 DE 19833305385 DE19833305385 DE 19833305385 DE 3305385 A DE3305385 A DE 3305385A DE 3305385 C1 DE3305385 C1 DE 3305385C1
Authority
DE
Germany
Prior art keywords
piston
annular groove
piston ring
ring
side walls
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
DE19833305385
Other languages
German (de)
Inventor
Jürgen 7056 Weinstadt Haß
Hans-Jürgen 7000 Stuttgart Strauber
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.)
Daimler Benz AG
Original Assignee
Daimler Benz 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 Daimler Benz AG filed Critical Daimler Benz AG
Priority to DE19833305385 priority Critical patent/DE3305385C1/en
Application granted granted Critical
Publication of DE3305385C1 publication Critical patent/DE3305385C1/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
    • F16J9/00Piston-rings, e.g. non-metallic piston-rings, seats therefor; Ring sealings of similar construction
    • F16J9/02L-section rings
    • 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)

Abstract

A piston ring is arranged in an annular groove of a piston, in particular a piston of an internal combustion engine. The side walls of the annular groove extend obliquely to the axis of the piston and preferably parallel to one another. To create a piston-ring arrangement which can be manufactured with a low outlay and has sufficient leak-tightness, a plain or taper-face compression ring known per se is dimensioned in such a way that, in the region of its outer circumference, it rests against one side wall of the annular groove and, in the region of its inner circumference, rests against the other side wall of the annular groove.

Description

auch ein Rechteck-Kolbenring sein kann, ist derart dimensioniert, daß er im Bereich 6 seines äußeren Umfanges an der einen Seitenwand 5 der Ringnut 2 und im Bereich 7 seines inneren Umfanges an der anderen Seitenwand 4 der Ringnut 2 anliegt. Die Seitenwände 4 und 5 der Ringnut 2 erstrecken sich vom Grunde 8 der Ringnut 2 in Richtung der Kolbenoberfläche 9, und der Kolbenring 3 liegt im Bereich 7 seines inneren Umfanges an der der Kolbenoberfläche 9 zugewandten Seitenwand 4 der Ringnut 3 und im Bereich 6 seines äußeren Umfanges an der der Kolbenoberfläche 9 abgewandten Seitenwand 5 der Ringnut 3 an.can also be a rectangular piston ring, is dimensioned in such a way that that it is in the area 6 of its outer circumference on one side wall 5 of the annular groove 2 and in the area 7 of its inner circumference on the other side wall 4 of the annular groove 2 is present. The side walls 4 and 5 of the annular groove 2 extend from the base 8 of the Ring groove 2 in the direction of the piston surface 9, and the piston ring 3 lies in the area 7 of its inner circumference on the side wall 4 facing the piston surface 9 the annular groove 3 and in the area 6 of its outer circumference on that of the piston surface 9 facing away from the side wall 5 of the annular groove 3.

Claims (1)

Patentanspruch: Kofbenring, der in einer Ringnut eines Kolbens, insbesondere eines Kolbens einer Brennkraftmaschine, angeordnet und als Rechteckring ausgebildet ist, der derart bemessen ist, daß er im Bereich seines äußeren Umfanges an der einen Seitenwand der Ringnut und im Bereich seines inneren Umfanges an der anderen Seitenwand der Ringnut anliegt, dadurch gekennzeichnet, daß die Seitenwände (4,5) der Ringnut (2) schräg zur Kolbenachse und vorzugsweise parallel zueinander verlaufen.Claim: Kofbenring, which is in an annular groove of a piston, in particular of a piston of an internal combustion engine, arranged and designed as a rectangular ring is, which is dimensioned such that it is in the region of its outer circumference on the one Side wall of the annular groove and in the area of its inner circumference on the other side wall the annular groove rests, characterized in that the side walls (4,5) of the annular groove (2) run obliquely to the piston axis and preferably parallel to one another. Die Erfindung bezieht sich auf einen Kolbenring gemäß dem Oberbegriff des Patentanspruchs 1. The invention relates to a piston ring according to the preamble of claim 1. Ein derartiger, aus der JP-PS 51-1 36 063 bekannter Kolbenring ist als Rechteckring mit in unbelastetem Zustand flacher Form ausgebildet, der sich beim Zusammendrücken auf seinen Arbeitsdurchmesser verwindet, so daß er im Bereich seines äußeren Umfanges und im Bereich seines inneren Umfanges an den Seitenwänden der Ringnut anliegt. Aufgrund der unterschiedlichen Verwindungsintensität des Kolbenringes, die an den Kolbenringenden am geringsten ist, liegt dieser in diesen Bereichen an den Seitenwänden der Ringnut mit einer derart geringen Vorspannung an, daß eine Abdichtung nicht sicher gewährleistet ist. Such a piston ring known from JP-PS 51-1 36 063 is designed as a rectangular ring with a flat shape in the unloaded state, which is twisted when compressed to its working diameter, so that it is in the area its outer circumference and in the area of its inner circumference on the side walls the ring groove rests. Due to the different torsion intensity of the piston ring, which is lowest at the piston ring ends, this is in these areas the side walls of the annular groove with such a low bias that a Sealing is not guaranteed. Der Erfindung liegt die Aufgabe zugrunde, die Kolbenringanordnung der eingangs genannten Art so auszubilden, daß der Kolbenring sich auch beim Einbau nicht verwindet und dennoch eine sichere Abdichtung gewährleistet ist. The invention is based on the object of the piston ring assembly of the type mentioned in such a way that the piston ring also moves during installation not twisted and yet a secure seal is guaranteed. Die Aufgabe ist erfindungsgemäß durch die im Kennzeichen des Patentanspruchs angegebenen Merkmale gelöst. The object is according to the invention by the characterizing part of the claim specified features solved. Die erfindungsgemäße Kolbenringanordnung erlaubt die Verwendung eines handelsüblichen, lediglich den Erfordernissen entsprechend dimensionierten Kolbenringes, der, ohne daß er sich beim Einbau verwindet, im Bereich seines inneren Umfanges und im Bereich seines äußeren Umfanges mit einer gleichmäßigen und derart hohen Vorspannung an den gegenüberliegenden Seitenflächen der Ringnut anliegt, daß eine gute Abdichtung erreicht, insbesondere ein Öldurchtritt vom Kurbelgehäuse zum Brennraum mit Sicherheit vermieden wird. The piston ring arrangement according to the invention allows the use of a commercially available piston ring, only dimensioned according to the requirements, which, without twisting during installation, in the area of its inner circumference and in the area of its outer circumference with a uniform and so high Bias is applied to the opposite side surfaces of the annular groove that a good sealing achieved, in particular an oil passage from the crankcase to the combustion chamber will certainly be avoided. Aus der US-PS 2640 746 (Fig. 5) ist zwar ein Kolbenring bekannt, der in einer Ringnut mit schräg zur Kolbenachse und parallel zueinander verlaufenden Seitenwänden eingesetzt ist, jedoch findet hier ein schüsselförmiger Kolbenring Verwendung, der nicht die erfindungsgemäße Art der Anlage an die Seitenwände der Kolbennut zeigt. From US-PS 2640 746 (Fig. 5) a piston ring is known, which run in an annular groove at an angle to the piston axis and parallel to each other Side walls is used, but there is a bowl-shaped piston ring Use that is not the type of plant according to the invention on the side walls of the Piston groove shows. Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung veranschaulicht, die einen in eine Ringnut eines Kolbens angeordneten Kolbenring im Schnitt zeigt. An embodiment of the invention is illustrated in the drawing, which shows a piston ring arranged in an annular groove of a piston in section. Ein mit 1 bezeichneter Kolben für eine zB. A piston designated 1 for an example. Brennkraftmaschine weist eine Ringnut 2 auf, in der ein in an sich bekannter Weise geschlitzter Minuten-Kolbenring 3 angeordnet ist. Die Seitenwände 4 und 5 der Ringnut 2 sind in einem Winkel oc von annähernd 90,5° bis 92" zur Kolbenachse A-A angeordnet und verlaufen parallel zueinander Der Minuten-Kolbenring 3, der z. B.Internal combustion engine has an annular groove 2 in which a in per se known manner slotted minute piston ring 3 is arranged. The side walls 4 and 5 of the annular groove 2 are at an angle oc of approximately 90.5 ° to 92 "to the piston axis A-A arranged and run parallel to each other. The minute piston ring 3, the z. B.
DE19833305385 1983-02-17 1983-02-17 Piston ring which is arranged in an annular groove of a piston Expired DE3305385C1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19833305385 DE3305385C1 (en) 1983-02-17 1983-02-17 Piston ring which is arranged in an annular groove of a piston

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19833305385 DE3305385C1 (en) 1983-02-17 1983-02-17 Piston ring which is arranged in an annular groove of a piston

Publications (1)

Publication Number Publication Date
DE3305385C1 true DE3305385C1 (en) 1984-03-01

Family

ID=6191023

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19833305385 Expired DE3305385C1 (en) 1983-02-17 1983-02-17 Piston ring which is arranged in an annular groove of a piston

Country Status (1)

Country Link
DE (1) DE3305385C1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3419241C1 (en) * 1984-05-23 1985-09-05 Goetze Ag, 5093 Burscheid Piston ring
WO2005022011A1 (en) 2003-09-02 2005-03-10 Mahle Gmbh Oil scraper ring ring groove arrangement for pistons of internal combustion engines
WO2005024278A1 (en) 2003-09-02 2005-03-17 Mahle Gmbh Oil scraper ring for pistons of internal combustion engines
US7396018B1 (en) 2003-09-02 2008-07-08 Mahle Gmbh Oil scraper ring for pistons of internal combustion engines
CN110234912A (en) * 2016-12-21 2019-09-13 马勒国际有限公司 Piston

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE608988C (en) * 1932-04-21 1935-02-05 American Trust Company Piston ring for internal combustion engines or the like.
US2640746A (en) * 1952-02-29 1953-06-02 Hastings Mfg Co Piston ring

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE608988C (en) * 1932-04-21 1935-02-05 American Trust Company Piston ring for internal combustion engines or the like.
US2640746A (en) * 1952-02-29 1953-06-02 Hastings Mfg Co Piston ring

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
JP 51-136063 *

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3419241C1 (en) * 1984-05-23 1985-09-05 Goetze Ag, 5093 Burscheid Piston ring
WO2005022011A1 (en) 2003-09-02 2005-03-10 Mahle Gmbh Oil scraper ring ring groove arrangement for pistons of internal combustion engines
WO2005024278A1 (en) 2003-09-02 2005-03-17 Mahle Gmbh Oil scraper ring for pistons of internal combustion engines
US7261301B2 (en) 2003-09-02 2007-08-28 Mahle Gmbh Oil scraper ring for pistons of internal combustion engines
US7396018B1 (en) 2003-09-02 2008-07-08 Mahle Gmbh Oil scraper ring for pistons of internal combustion engines
US7431305B2 (en) 2003-09-02 2008-10-07 Mahle Gmbh Oil scraper ring ring groove arrangement for pistons of internal combustion engines
CN100504122C (en) * 2003-09-02 2009-06-24 玛勒有限公司 Arrangement of oil scraper ring grooves for pistons of internal combustion engines
CN110234912A (en) * 2016-12-21 2019-09-13 马勒国际有限公司 Piston
CN110234912B (en) * 2016-12-21 2022-02-22 马勒国际有限公司 piston

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Legal Events

Date Code Title Description
8100 Publication of the examined application without publication of unexamined application
D1 Grant (no unexamined application published) patent law 81
8363 Opposition against the patent
8330 Complete disclaimer