DE1000651B - Piston ring - Google Patents
Piston ringInfo
- Publication number
- DE1000651B DE1000651B DEG19059A DEG0019059A DE1000651B DE 1000651 B DE1000651 B DE 1000651B DE G19059 A DEG19059 A DE G19059A DE G0019059 A DEG0019059 A DE G0019059A DE 1000651 B DE1000651 B DE 1000651B
- Authority
- DE
- Germany
- Prior art keywords
- piston ring
- ring
- chrome
- piston
- rings
- 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
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
- F16J9/00—Piston-rings, e.g. non-metallic piston-rings, seats therefor; Ring sealings of similar construction
- F16J9/26—Piston-rings, e.g. non-metallic piston-rings, seats therefor; Ring sealings of similar construction characterised by the use of particular materials
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
Description
DEUTSCHES MMm, PATENTAMTGERMAN MMm, PATENT OFFICE
KL.47f 22/70KL.47f 22/70
INTERNAT. KL. F 06 jINTERNAT. KL. F 06 j
G190S9Xn/47f ANMELDETAG: 23. FEBRU AR 1956G190S9Xn / 47f REGISTRATION DATE: FEBRUARY 23, 1956
BEKANNTMACHUNG
DER ANMELDUNG
UND AUSGABE DER
AüSLEGESCHRIFT: 1 0. J A N U A R 19 5 7NOTICE
THE REGISTRATION
AND ISSUE OF THE
DEPLOYMENT: 1 0 JANUARY 19 5 7
Gegenstand der Erfindung ist ein geschlitzter Kolbenring, insbesondere für schlitzgesteuerte Zweitaktmotoren, mit verchromter Lauffläche.The subject of the invention is a slotted piston ring, in particular for slot-controlled two-stroke engines, with chrome-plated running surface.
Schlitzgesteuerte Zweitaktmotoren erfordern, daß der Stoß der Kolbenringe durch Stifte od. dgl. festgelegt ist, damit die Ringenden beim Überfahren der Spülschlitze nicht in diese geraten und dadurch zerbrechen. Ferner ist es bekannt, Kolbenringe für Zweitaktmotoren mit einfallenden Ringenden herzustellen; derartige Ringe können ohne Stoßfixierung verwendet werden.Slot-controlled two-stroke engines require that the impact of the piston rings od by pins. The like. Set so that the ring ends do not get into the flushing slots and break as a result. It is also known to produce piston rings for two-stroke engines with inclined ring ends; such rings can be used without impact fixing.
Schließlich ist es auch bekannt, die Verschleißfestigkeit von Kolbenringen, vorzugsweise des obersten Kompressionsringes, durch eine galvanisch aufgebrachte Chromlauffläche zu verbessern. Dieses Verfahren findet auch Anwendung für Zweitaktkolbenringe. Doch hat es sich hierbei gezeigt, daß durch die harte Chromschicht die Kanten der Spülschlitze beschädigt wurden, wodurch in manchen Fällen die Kolbenringe brachen.Finally, it is also known to determine the wear resistance of piston rings, preferably the uppermost compression ring, to be improved by a galvanically applied chrome contact surface. This The process is also used for two-stroke piston rings. But it has been shown here that the edges of the flushing slots were damaged by the hard chrome layer, which in some Cases the piston rings broke.
Ferner ist es bei der Herstellung von Kolbenringen bekannt, daß die nicht immer gleiche Radialspannung der Ringe durch verschieden weites Aufspreizen vor dem Aufbringen der Chromschicht ausgeglichen werden kann.It is also known in the manufacture of piston rings that the radial stress is not always the same the rings are compensated for by spreading them apart to different extents before applying the chrome layer can be.
Die Erfindung geht von der Erkenntnis aus, daß die Radialspannung vom Kolbenring durch Aufbringen einer Chromschicht oder Veränderung dieser Schicht beeinflußt werden kann. Erfindungsgemäß wird daher vorgeschlagen, die Chromschicht im Bereich der Stoßenden durch eine Wärmebehandlung weicher zu machen. Wie Versuche gezeigt haben, reicht eine derartige Verminderung der Härte bereits aus, um ein Beschädigen der Spülschlitzkanten zu verhindern. Vorzugsweise wird für die Wärmebehand-Kolbenring The invention is based on the knowledge that the radial tension of the piston ring by application a chrome layer or change in this layer can be influenced. According to the invention it is therefore proposed to heat-treat the chrome layer in the area of the butt ends to soften. As tests have shown, such a reduction in hardness is already sufficient to prevent damaging the edges of the flushing slot. Preferably used for the heat treatment piston ring
Anmelder:Applicant:
Goetzewerke Friedrich Goetze A.-G.,
Burscheid bei Köln, Blumenstr. 6Goetzewerke Friedrich Goetze A.-G.,
Burscheid near Cologne, Blumenstr. 6th
Dr.-Ing. Job Denfeld, Burscheid bei Köln,
ist als Erfinder genannt wordenDr.-Ing. Job Denfeld, Burscheid near Cologne,
has been named as the inventor
lung der Ringenden ein autogener Schweiß- oder Härtebrenner verwendet. Durch die Glühbehandlung wird nur das Gefüge der Ringenden verändert.An autogenous welding or hardening torch is used for the ring ends. By the annealing treatment only the structure of the ring ends is changed.
In der Zeichnung ist die Erfindung an einem Ausführungsbeispiel dargestellt.In the drawing, the invention is shown using an exemplary embodiment.
Der Kolbenring 1 ist an der Lauffläche mit einer Chromschicht 2 bedeckt, die im Bereich a, b der Ringenden 3, 4 wärmebehandelt ist.The piston ring 1 is covered on the running surface with a chrome layer 2, which is heat-treated in the area a, b of the ring ends 3, 4.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEG19059A DE1000651B (en) | 1956-02-23 | 1956-02-23 | Piston ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEG19059A DE1000651B (en) | 1956-02-23 | 1956-02-23 | Piston ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE1000651B true DE1000651B (en) | 1957-01-10 |
Family
ID=7121177
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEG19059A Pending DE1000651B (en) | 1956-02-23 | 1956-02-23 | Piston ring |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE1000651B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1222748B (en) * | 1962-08-04 | 1966-08-11 | Goetzewerke | Piston ring |
| DE3938833A1 (en) * | 1988-11-24 | 1990-05-31 | Riken Kk | OIL RING ARRANGEMENT |
| EP1359351A1 (en) * | 2000-12-26 | 2003-11-05 | Kabushiki Kaisha Riken | Piston ring and method of producing the same |
-
1956
- 1956-02-23 DE DEG19059A patent/DE1000651B/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1222748B (en) * | 1962-08-04 | 1966-08-11 | Goetzewerke | Piston ring |
| DE3938833A1 (en) * | 1988-11-24 | 1990-05-31 | Riken Kk | OIL RING ARRANGEMENT |
| EP1359351A1 (en) * | 2000-12-26 | 2003-11-05 | Kabushiki Kaisha Riken | Piston ring and method of producing the same |
| EP1359351A4 (en) * | 2000-12-26 | 2005-04-13 | Riken Kk | Piston ring and method of producing the same |
| US7052019B2 (en) | 2000-12-26 | 2006-05-30 | Kabushiki Kaisha Riken | Piston ring and method of manufacturing the same |
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