DE731496C - Joint formation for piston rings with angled cross-section - Google Patents

Joint formation for piston rings with angled cross-section

Info

Publication number
DE731496C
DE731496C DEW107934D DEW0107934D DE731496C DE 731496 C DE731496 C DE 731496C DE W107934 D DEW107934 D DE W107934D DE W0107934 D DEW0107934 D DE W0107934D DE 731496 C DE731496 C DE 731496C
Authority
DE
Germany
Prior art keywords
section
cross
piston rings
joint formation
piston ring
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
DEW107934D
Other languages
German (de)
Inventor
Felix Wankel
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DEW107934D priority Critical patent/DE731496C/en
Application granted granted Critical
Publication of DE731496C publication Critical patent/DE731496C/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
    • F16J9/12Details
    • F16J9/14Joint-closures

Landscapes

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

Description

Stoßstellenausbildung für Kolbenringe mit winkelförmigem Querschnitt Die Erfindung bezieht sich auf die Stoßstellenausbildung von Kolbenringen, die durch einen Ansatz an der Lauffläche winkelförmigen Querschnitt erhalten, wobei der Ansatz auf der Seite niedrigeren Druckes angeordnet ist und die Kolbenringnut eine dem Laufflächenansatz des Ringes entsprechende Aussparung aufweist. Durch diesen sog. Entlastungsrand wird die an der Zylinderwand gleitende Lauffläche des Kolbenringes gegenüber der vom Gasdruck beaufschlagten Fläche vergrößert und dadurch der Anpreßdruck herabgesetzt. Die Winkelringe haben sich während des Betriebes durch geringeren Verschleiß ausgezeichnet, doch haben Leckgasmessungen ergeben, daß sie größere Leckgasverluste als Ringe rechteckigen Querschnittes haben. Als Ursache wurde im Lauf von Versuchen die durch den Entlastungsrand bedingte größere radiale Höhe des Durchströ.mquerschnittes am Ringstoß ermittelt.Joint formation for piston rings with an angular cross-section The invention relates to the joint formation of piston rings by received an approach on the tread angular cross-section, the approach is arranged on the side of lower pressure and the piston ring groove one of the Has tread approach of the ring corresponding recess. Through this so-called. The relief edge is the sliding surface of the piston ring on the cylinder wall increased compared to the area acted upon by the gas pressure and thereby the contact pressure degraded. The angle rings have decreased during operation Wear excellent, but leakage gas measurements have shown that they have greater leakage gas losses as rings of rectangular cross-section. The cause was found in the course of experiments the greater radial height of the flow cross section caused by the relief edge determined at the ring joint.

Um diesem Übelstand abzuhelfen, erhält der Kolbenring von winkelförmigem Querschnitt -an seinen Enden (in der Gegend der Stoßfuge) rechteckigen Querschnitt, und auch der winkelförmige Querschnitt.der Kolben:ringnut geht an einer Stelle in einen entsprechenden rechteckigen Querschnitt über. Es werden so die Vorteile des entlasteten Kolbenringes mit den geringeren Leckgasverlusten des gewöhnlichen Kolbenringes vereint. Die Zeichnung veranschaulicht den Ei-fi.ndungsgedanken beispielsweise an drei Ab- bildung en, von denen Abb. i den ges@-öhnlichen Kolbenring, Abb. a den seitherigen holbe-n,ring ,mit winkelförmigem (#ticrsclinitt und Abb.3 diesen entlasteten Kolbenring mit verbesserter Stol.lstell@e zeigt. Abb. i und zei-en die seitherigen Kolbenringe im Querschnitt, wobei die größere Hölie h des vom Gas durchströ fiten Querschnittes aii der StoPistelle durch den Entlastungsrand e des Ringes r bedingt ist.To remedy this inconvenience, the piston ring has an angular cross-section - at its ends (in the area of the butt joint) a rectangular cross-section, and also the angular cross-section. In this way, the advantages of the relieved piston ring are combined with the lower gas leakage losses of the conventional piston ring. The drawing illustrates the egg fi.ndungsgedanken for example, at three waste en education, in which: fig. I ges @ -öhnlichen the piston ring, Fig. A since then the Holbe-n, ring, #ticrsclinitt with winkelförmigem (and fig.3 these Relieved piston ring with improved Stol.lstell@e Fig. i and show the previous piston rings in cross-section, whereby the larger cavity h of the cross-section aii of the shock area through which the gas flows is due to the relief edge e of the ring r.

Abb.3 zeit radial von außen gesehen den erfindungsgemäß verbesserten Kolbenring, der an der Staßstellie zum einfachen Recht; ckring wird und dessen Ko.lbenringnut entsprechend ausgebildet ist.Fig.3 time, seen radially from the outside, the improved according to the invention Piston ring, the one at the Staßstellie to the simple right; ckring and its piston ring groove is designed accordingly.

Claims (1)

PATENTANSPRUCH: Stoßstellenausbildung für Kolbenringe, die durch einen Ansatz an der Lauffläche winkelförmigen Querschnitt erhalten, wobei der Ansatz auf der Seite niedrigeren Druckes angeordnet ist, und die Koll)enringnut eine dem Laufflächenansatz des Ringes entsprechende Aussparung aufweist, dadurch gekennzeichnet, daß der Kolbenring an seinen Enden vom winkelförmigen Querschnitt in den rechteckigen Querschnitt übergeht und daß dementsprechend auch die Kolbenringnut vr,m winkelförmigen Querschnitt in den rechteckigen Querschnitt übergeht.PATENT CLAIM: Joint formation for piston rings, which by a Approach to the tread received angular cross-section, the approach on the side of lower pressure is arranged, and the Koll) enringnut one of the tread approach of the ring has corresponding recess, characterized in that the piston ring merges at its ends from the angular cross-section into the rectangular cross-section and that accordingly the piston ring groove vr, m angular cross-section in passes over the rectangular cross-section.
DEW107934D 1940-10-22 1940-10-22 Joint formation for piston rings with angled cross-section Expired DE731496C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEW107934D DE731496C (en) 1940-10-22 1940-10-22 Joint formation for piston rings with angled cross-section

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEW107934D DE731496C (en) 1940-10-22 1940-10-22 Joint formation for piston rings with angled cross-section

Publications (1)

Publication Number Publication Date
DE731496C true DE731496C (en) 1943-02-10

Family

ID=7616836

Family Applications (1)

Application Number Title Priority Date Filing Date
DEW107934D Expired DE731496C (en) 1940-10-22 1940-10-22 Joint formation for piston rings with angled cross-section

Country Status (1)

Country Link
DE (1) DE731496C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1056440B (en) * 1956-10-23 1959-04-30 Zahnradfabrik Friedrichshafen Seal body
US4899983A (en) * 1989-01-18 1990-02-13 Westinghouse Electric Corp. Anti-wedging pressure seal ring apparatus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1056440B (en) * 1956-10-23 1959-04-30 Zahnradfabrik Friedrichshafen Seal body
US4899983A (en) * 1989-01-18 1990-02-13 Westinghouse Electric Corp. Anti-wedging pressure seal ring apparatus

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