DK154905B - Piston ring for a piston combustion engine with lubrication openings in the cylinder wall - Google Patents
Piston ring for a piston combustion engine with lubrication openings in the cylinder wall Download PDFInfo
- Publication number
- DK154905B DK154905B DK276883A DK276883A DK154905B DK 154905 B DK154905 B DK 154905B DK 276883 A DK276883 A DK 276883A DK 276883 A DK276883 A DK 276883A DK 154905 B DK154905 B DK 154905B
- Authority
- DK
- Denmark
- Prior art keywords
- piston ring
- piston
- recess
- cylinder wall
- combustion engine
- Prior art date
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
- F16J9/12—Details
-
- 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
-
- 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
- F02B3/00—Engines characterised by air compression and subsequent fuel addition
- F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
- Lubrication Of Internal Combustion Engines (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Description
iin
DK 154905 BDK 154905 B
5 Opfindelsen vedrører en stempelring til en stempelforbrændingsmotor med en cylindervæg, der udviser smøreåbninger, hvorved der i stempelringens slidflade findes mindst en udsparing med en i stempelringens løberetning, skråt til omløbsretningens forløbende begrænsningsrand.The invention relates to a piston ring for a piston combustion engine with a cylinder wall which shows lubrication openings, whereby there is at least one recess with an in the direction of travel of the piston ring inclined to the circumferential direction of the piston ring in the wear direction of the piston ring.
1010
Forbrændingsmotorer af denne slags udviser den mangel, at smøreolie-fordelingen i omkredsretningen er utilfredsstillende, idet stempelringen ved passage af smøreåbningerne udøver en afstrygende virkning, hvorved 15 stempelringens mod topstykket vendende kant forskyder den olie, der træder ud af smøreåbningerne, i cylinderens aksialretning vulstagtig eller i dråber. Følgen er, at der i området umiddelbart omkring smøreåbningerne opstår en for stor smøreoliekoncentration, mens der 20 i området mellem to smøreåbninger vil være en for ringe smørefilm. Herved opstår der et for stort slid på cylinderforingen i området mellem smøreåbningerne med tilsvarende forringede gangegenskaber og en forøgelse af motorens smøreolieforbrug.Combustion engines of this kind exhibit the lack of circumferential lubrication oil distribution, with the piston ring exerting a lubricating action when passing the lubrication openings, whereby the edge of the piston ring facing the top piece displaces the oil exiting the lubrication openings in the axial direction of the cylinder or in drops. The consequence is that in the area immediately around the lubrication openings, too much lubricating oil concentration occurs, while in the area between two lubrication openings there will be too little lubricating film. This results in excessive wear of the cylinder liner in the area between the lubrication openings with correspondingly impaired walking properties and an increase in the engine lubricating oil consumption.
2525
Ganske vist er det f.eks. i forhold til schweizisk patent nr. CH-PS 616-989 kendt at udføre smøreåbningerne som skrå smørenoter i cylindervæggen. Denne udførelse udviser ganske vist en god oliefordeling på grund af 30 olieoplagringsvirkningen, men er dog forbundet med forholdsvis høje fremstillingsomkostninger.Admittedly it is e.g. in accordance with Swiss Patent No. CH-PS 616-989 known to perform the lubrication openings as oblique grease notes in the cylinder wall. While this embodiment exhibits a good oil distribution due to the oil storage effect, it is nevertheless associated with relatively high manufacturing costs.
Endvidere er ifølge DE-OS 2.538.759 offentliggjort en stempelring med skrå noter i dens slidflade. Disse 2Furthermore, according to DE-OS 2,538,759, a piston ring with inclined grooves is published in its wear surface. These 2
DK 154905 BDK 154905 B
1 noter forløber dog gennemgående fra stempelringens øverste til dens nederste kant og bevirker ingen til-strækkelig oliefordeling, da disse noter ikke har nogen olieoplagringsvirkning.However, 1 notes extends throughout from the top of the piston ring to its lower edge and causes no sufficient oil distribution as these notes have no oil storage effect.
55
Formålet med opfindelsen er at konstruere en stempelring af den i indledningen nævnte s lags~, som ved forholdsvis lave fremstillingsomkostninger sikrer en regelmæssig fordeling af smøreolie langs omkredsen og dermed udviser 10 forbedrede gangegenskaber ved formindsket smøreolieforbrug.The object of the invention is to construct a piston ring of the type mentioned in the introduction, which at relatively low manufacturing costs ensures a regular distribution of lubricating oil along the circumference and thus exhibits 10 improved walking properties in diminished lubricating oil consumption.
Stempelringen ifølge opfindelsen er ejendommelig ved, at udsparingen er anbragt kærvagtigt på stempelringens 15 øverste kant, at den af udsparingen dannede flade løber ud i den øverste kant, og at fladen til den anden side er begrænset af et indstik, der forløber parallelt med stempelaksen fra stempelringens øverste kant.The piston ring according to the invention is characterized in that the recess is affectionately arranged on the upper edge of the piston ring 15, that the surface formed by the recess extends into the upper edge and that the surface to the other side is limited by an insert extending parallel to the piston axis from upper edge of piston ring.
20 Herved opnås, at stempelringen ved overstrygning af smøreåbningerne fordeler smøreolien ved plovvirkning over hele cylindervæggen i omkredsretningen. Smøreåbningerne kan da være udformet som simple kapillarboringer.Hereby it is obtained that the piston ring, by over-tightening the lubrication openings, distributes the lubricating oil by plowing action over the entire cylinder wall in the circumferential direction. The lubrication openings can then be designed as simple capillary bores.
Der kan således gives afkald på udførelse af kostbare 25 smørenotarrangementer i cylindervæggen.Thus, costly lubrication note arrangements can be dispensed with in the cylinder wall.
I en særlig fordelagtig udførelse af opfindelsen kan stempelringen på kendt måde, f.eks. ifølge DE-OS 3.143.306, i sin løbeflade udvise en not, der strækker 30 sig på tværs af stempelringsaksen, og noten være forbundet med den side af stempelringen, der vender mod topstykket med mindst to kanaler, der forløber vinkelret på omkredsretningen, hvorved udsparingen mellem udmundingerne, der vender mod topstykket, strækker sig over 3In a particularly advantageous embodiment of the invention, the piston ring may be known in a known manner, e.g. according to DE-OS 3,143,306, in its running surface, a groove extending 30 across the piston ring axis and the groove be connected to the side of the piston ring facing the head with at least two channels extending perpendicular to the circumferential direction, the recess between the mouths facing the head piece extends beyond 3
DK 154905 BDK 154905 B
1 to efter hinanden følgende kanaler.1 two consecutive channels.
I forhold til den kendte teknik indenfor fagområdet opnås den herved ifølge opfindelsen en yderligere for-5 bedring af oliefordelingen.In relation to the prior art in the art, the present invention achieves a further improvement in the oil distribution.
Den nærmere redegørelse for opfindelsen følger ved hjælp af udførelseseksempler i forbindelse med vedlagte tegning, hvor 10 fig. 1 viser et længdesnit gennem cylinderen i en forbrændingsmotor, hvori der befinder sig et med stempelringe forsynet stempel, 15 fig. 2 et afsnit af en af stempelringene i fig.Detailed description of the invention follows by way of example examples in connection with the accompanying drawings, in which: FIG. 1 is a longitudinal section through the cylinder of an internal combustion engine in which a piston ring is fitted; FIG. 2 is a section of one of the piston rings of FIG.
1, set forstørret forfra i ringplanet, fig. 3 et grundrids svarende til fig. 2, 20 fig. 4 et afsnit af en anden stempelring i afbild ning analogt med fig. 2, fig. 5 et grundrids svarende til fig. 4, og 25 fig. 6 et snit svarende til snitlinien VI-VI i fig. 4.1, enlarged front view of the ring plane; FIG. 3 is a plan view similar to FIG. 2, 20 FIG. 4 shows a section of another piston ring in the image analogous to FIG. 2, FIG. 5 is a plan view similar to FIG. 4 and 25 in FIG. 6 is a section similar to section line VI-VI of FIG. 4th
En cylinderforing 10 (fig. 1) i en totaktsdieselmotor f.eks. til skibsfremdrift, er på kendt måde forsynet 30 med indsugningskanaler 12 og udstødskanaler 14 og har på den indvendige cylindervæg 16 smøreboringer 20, som forsynes med smøreolie. I cyliriderforingen findes det bevægelige stempel 22 med stempelhovedet 24, i hvilket der i stempelringsriller er stempelringe 25 4A cylinder liner 10 (Fig. 1) in a two-stroke diesel engine, e.g. for ship propulsion, is in a known manner provided with suction ducts 12 and exhaust ducts 14 and has on the inner cylinder wall 16 lubricating bores 20 which are provided with lubricating oil. In the cylirider liner is the movable piston 22 with the piston head 24, in which piston ring grooves 25 4
DK 154905 BDK 154905 B
• 1 af konventionel udførelse såvel som stempelringe 26, 28, 30 med udsparinger, henholdsvis langs omkredsen forløbende riller og kanaler. Til stempelhovedet slutter sig stempelskørtet 32, som har en i det væsentlige 5 cylindrisk overflade, hvis udvendige diameter er lidt mindre end stempelhovedets 24. Stemplet 22 er fastgjort til en ikke vist stempelstang, hvis anden ende på kendt måde er forbundet med et ikke vist krydshoved.1 of conventional embodiment as well as piston rings 26, 28, 30 with recesses and grooves and channels extending along the circumference, respectively. To the piston head is joined the piston skirt 32, which has a substantially cylindrical surface, the outside diameter of which is slightly smaller than that of the piston head 24. The piston 22 is attached to a piston rod not shown, the other end of which is known in a known way with a crosshead not shown. .
10 Stempelringen 26 (fig. 2, 3) har på kendt måde en slidflade 34, og et som lås tjenende gab 38, som tillader en fjedring og en tilpresning af slidfladen 34 mod cylindervæggen 16.The piston ring 26 (Figs. 2, 3) has in a known manner a wear surface 34 and a locking gap 38 which permits a suspension and a pressing of the wear surface 34 against the cylinder wall 16.
15 I henhold til opfindelsen har stempelringen 26 i sin slidflade 34 mindst en udsparing 40, som strækker sig i aksialretningen til den mod topstykket vendende overside 39. Udsparingen forløber skråt i forhold til omkredsretningen og har i den side, der vender mod krum- 20 tappen, begrænsningskanten 42. Udsparingen 40 har en jævn skrå flade 36, som i henhold til fig. 6 danner en vinkel med ringens mod topstykket vendende overflade 39. Vinklen skal for at opfylde hensigten være større end ca. 10°, men dog mindre end 90°.According to the invention, the piston ring 26 in its wear surface 34 has at least one recess 40 which extends in the axial direction to the top face facing the top piece 39. The recess extends obliquely to the circumferential direction and has in the side facing the crank 20 , the recess edge 42. The recess 40 has an evenly inclined surface 36 which, according to FIG. 6 forms an angle with the surface 39 of the ring facing the head piece. The angle must be greater than approx. 10 °, but less than 90 °.
2525
Stempelringen 28 (fig. 4, 5) har en langs omkredsen forløbende rille 37 og er forsynet med kanaler 41, der forløber vinkelret på omkredsretningen. Mellem disse kanaler 41 strækker sig udsparingerne 43. Rillen 30 37 har et halvcirkelformet tværsnit.The piston ring 28 (Figs. 4, 5) has a circumferentially extending groove 37 and is provided with channels 41 extending perpendicular to the circumferential direction. Between these channels 41, the recesses 43 extend. The groove 30 37 has a semi-circular cross section.
Det er underforstået, at udsparingerne 40, 43 også kan være udformet, så de i det væsentlige strækker sig i eet stykke langs hele omkredsen af stempelringen.It is understood that the recesses 40, 43 may also be formed so that they extend substantially one piece along the entire circumference of the piston ring.
Claims (2)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH4884/82A CH657667A5 (en) | 1982-08-16 | 1982-08-16 | PISTON INTERNAL COMBUSTION ENGINE WITH A PISTON RING AND A CYLINDER TUBE HAVING LUBRICATION OPENINGS. |
| CH488482 | 1982-08-16 |
Publications (4)
| Publication Number | Publication Date |
|---|---|
| DK276883D0 DK276883D0 (en) | 1983-06-16 |
| DK276883A DK276883A (en) | 1984-02-17 |
| DK154905B true DK154905B (en) | 1989-01-02 |
| DK154905C DK154905C (en) | 1989-05-29 |
Family
ID=4284217
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DK276883A DK154905C (en) | 1982-08-16 | 1983-06-16 | Piston ring for a piston combustion engine with lubrication openings in the cylinder wall |
Country Status (7)
| Country | Link |
|---|---|
| JP (1) | JPS5949355A (en) |
| CH (1) | CH657667A5 (en) |
| DE (1) | DE3231336C2 (en) |
| DK (1) | DK154905C (en) |
| GB (1) | GB2125515B (en) |
| IT (1) | IT1164379B (en) |
| SU (1) | SU1304753A3 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02118282U (en) * | 1989-03-06 | 1990-09-21 | ||
| GB8925358D0 (en) * | 1989-11-09 | 1989-12-28 | Hallite Seals Int Ltd | Buffer seals |
| DE19942242A1 (en) * | 1999-09-04 | 2001-03-15 | Man B & W Diesel As Kopenhagen | Reciprocating machine |
| DE19942241C2 (en) * | 1999-09-04 | 2003-12-24 | Man B & W Diesel As Kopenhagen | reciprocating engine |
| JP2007309376A (en) * | 2006-05-17 | 2007-11-29 | Toyota Motor Corp | Piston ring |
| DE102015116838B3 (en) * | 2015-10-05 | 2017-02-02 | Federal-Mogul Burscheid Gmbh | piston ring |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE515025A (en) * | ||||
| GB411426A (en) * | 1932-09-30 | 1934-05-30 | Anglo Persian Oil Company Ltd | Improvements relating to pistons |
| GB586577A (en) * | 1944-01-28 | 1947-03-24 | Constantino Penco | Improvements in or relating to internal combustion engines |
| DK110117C (en) * | 1964-08-29 | 1968-12-16 | Burmeister & Wains Mot Mask | Piston with sealing piston rings and at least one piston ring with oblique scraper grooves in the wear surface, in particular for internal combustion engines. |
| AT281504B (en) * | 1967-11-10 | 1970-05-25 | Bayerische Motoren Werke Ag | Pistons with piston rings for internal combustion engines |
| CH596479A5 (en) * | 1975-08-26 | 1978-03-15 | Sulzer Ag | |
| CH616989A5 (en) * | 1976-11-18 | 1980-04-30 | Sulzer Ag | Piston internal combustion engine |
| DE3143306C2 (en) * | 1981-10-23 | 1984-12-13 | Gebrüder Sulzer AG, Winterthur | Piston internal combustion engine with a piston ring and cylinder running surface arrangement |
-
1982
- 1982-08-16 CH CH4884/82A patent/CH657667A5/en not_active IP Right Cessation
- 1982-08-24 DE DE3231336A patent/DE3231336C2/en not_active Expired
-
1983
- 1983-06-16 DK DK276883A patent/DK154905C/en not_active IP Right Cessation
- 1983-08-01 GB GB08320671A patent/GB2125515B/en not_active Expired
- 1983-08-05 IT IT22440/83A patent/IT1164379B/en active
- 1983-08-11 SU SU833632200A patent/SU1304753A3/en active
- 1983-08-15 JP JP58149091A patent/JPS5949355A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| DK276883D0 (en) | 1983-06-16 |
| JPS6410653B2 (en) | 1989-02-22 |
| GB2125515A (en) | 1984-03-07 |
| DE3231336A1 (en) | 1984-02-16 |
| CH657667A5 (en) | 1986-09-15 |
| JPS5949355A (en) | 1984-03-21 |
| GB2125515B (en) | 1986-01-22 |
| IT8322440A1 (en) | 1985-02-05 |
| DE3231336C2 (en) | 1984-05-24 |
| DK276883A (en) | 1984-02-17 |
| DK154905C (en) | 1989-05-29 |
| IT8322440A0 (en) | 1983-08-05 |
| GB8320671D0 (en) | 1983-09-01 |
| IT1164379B (en) | 1987-04-08 |
| SU1304753A3 (en) | 1987-04-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| AHS | Application shelved for other reasons than non-payment | ||
| PBP | Patent lapsed |