DK154720B - SLOT Piston ring for piston combustion engine - Google Patents
SLOT Piston ring for piston combustion engine Download PDFInfo
- Publication number
- DK154720B DK154720B DK273983A DK273983A DK154720B DK 154720 B DK154720 B DK 154720B DK 273983 A DK273983 A DK 273983A DK 273983 A DK273983 A DK 273983A DK 154720 B DK154720 B DK 154720B
- Authority
- DK
- Denmark
- Prior art keywords
- piston ring
- piston
- groove
- combustion engine
- ring
- Prior art date
Links
- 238000002485 combustion reaction Methods 0.000 title claims description 10
- 238000005461 lubrication Methods 0.000 claims description 7
- 239000003921 oil Substances 0.000 description 5
- 238000011010 flushing procedure Methods 0.000 description 4
- 230000002093 peripheral effect Effects 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 239000010687 lubricating oil Substances 0.000 description 2
- 239000000295 fuel oil Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
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
-
- 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)
Description
SLIPSET STEMPELRING TIL STEMPELFORBRÆNDINGSMOTORREMOVED Piston ring for piston combustion engine
Opfindelsen angår en slidset stempelring til en forbræn¬dingsmotor, hvis cylinder-løbeflade har smøreåbninger, meden på tværs af sin akse forløbende, olieførende not, dervia i det mindste en skråt i forhold til stempelringensperiferiretning forløbende kanal står i forbindelse medden mod forbrændingskammeret vendende side af stempelrin¬gen.BACKGROUND OF THE INVENTION The invention relates to a slotted piston ring for an internal combustion engine, the cylinder running surface of which has lubrication openings, but extending across its axis, oil-bearing groove, at least one inclined channel extending in relation to the piston ring peripheral direction of the combustion chamber facing the stempelrin¬gen.
En sådan stempelring kendes fra den tyske patentansøgningP 31 43 306.5. Med den foregår der under indvirkning afgastrykket en oliestrømning i omkredsretningen i den istempelringen forløbende not. Dermed opnås i modsætningtil det normale en god oliefordeling i omkredsretningensamt også en virkningsfuld gennemspuling at den i stempel-ringen forløbende not til rensning af denne for afrivnin¬ger og forbrændingsrester. Ved anvendelse af særligt un¬derlødige brændstoffer, som for eksempel meget tyktflyden¬de tungolie, kan der trods den anførte gennemspuling afnoten forekomme en tilbøjelighed til skorpedannelse.Such a piston ring is known from German patent application P 31 43 306.5. With it, an oil flow takes place under the circumferential direction of the groove in the ice piston ring. Thus, in contrast to the normal, a good oil distribution in the circumferential direction is obtained and also an effective flushing of the groove in the piston ring for cleaning it off of strippers and combustion residues. The use of particularly unsuitable fuels, such as very viscous heavy oil, may, despite the stated flushing of the note, a tendency to crust formation.
Det er formålet med opfindelsen at forbedre den i indled¬ningen beskrevne stempelring således, at man også ved an¬vendelse af særligt underlødige brændstoffer med sikkerhedforhindrer skorpedannelse.It is the object of the invention to improve the piston ring described in the introduction so that even with the use of particularly sublimely fuels with safety prevent crust formation.
Til opnåelse af formålet tjener de i patentkravets kende¬tegnende del anførte ejendommeligheder.In order to achieve the purpose, the properties mentioned in the patent part of the patent claim serve.
Herved kan man opnå, at ved overstrygningen af smøreåbnin¬gerne opstår der under indvirkning af gastrykket en ekstrahastighedsforøgelse af oliestrømningen i omkredsretningenog i aksialretningen i den i stempelringen skrueliniefor-met forløbende not. Således opnås der ikke blot en forbed- ret oliefordeling i omkredsretningen, men også en væsent¬ligt mere virkningsfuld gennemspuling af den i stempelrin¬gen forløbende not med hensyn til rensning for afrivningerog forbrændingsrester.In this way, it can be achieved that by the over-tightening of the lubrication openings, an extra-velocity increase of the oil flow in the circumferential direction and in the axial direction in the groove-shaped groove in the piston ring is caused by the gas pressure. Thus, not only an improved oil distribution in the circumferential direction is obtained, but also a significantly more effective flushing of the groove in the piston ring with regard to cleaning of tear-offs and combustion residues.
Herudover kan man ved hjælp af den skrue linie formede notgennemføre en stillings og slitagebestemmelse, som denkendes fra det tyske patentskrift nr. 25 17 751. Denne al¬lerede kendte not er dog fyldt med et ikke magnetiserbart,fast materiale og derfor uanvendelig til smøreformålet i-følge denne opfindelse.In addition, by means of the screw-shaped groove, a position and wear determination, as recognized by German patent no. 25 17 751, can be carried out. However, this known prior groove is filled with a non-magnetizable solid material and is therefore unusable for the purpose of lubrication. follow this invention.
Den nærmere illustration af opfindelsen sker ved hjælp afeksempler på udførelsesformer i forbindelse med den med¬følgende tegning. I denne viser:The further illustration of the invention is made by way of examples of embodiments in connection with the accompanying drawings. In this one shows:
Fig. 1 et længdesnit gennem en cylinder til en stempel¬forbrændingsmotor med et deri værende, med stem¬pelringe forsynet stempel,FIG. 1 is a longitudinal section through a cylinder of a piston-combustion engine with a piston ring fitted therein;
Fig. 2 et udsnit af en stempelring ifølge figur 1 iforstørret målestok, set forfra og betragtet isit ringplan,FIG. 2 is a front view of an enlarged scale of a piston ring according to FIG. 1;
Fig. 3 en lodret projektion svarende til figur 2,FIG. Figure 3 is a vertical projection similar to Figure 2;
Fig. 4 et udsnit af en gastæt stempelring i en med fi¬gur 2 analog illustration, ogFIG. 4 is a sectional view of a gas-tight piston ring in a figure 2 analog illustration; and
Fig. 5 et snit langs linien V-V i figur 4.FIG. 5 is a section along the line V-V in Figure 4.
En cylinderforing 10 (figur 1) i en totakts dieselmotor,for eksempel en skibsmotor, er på kendt måde udformet medindstrømningsåbninger 12 og udstrømningsåbninger 14 og hari sin indre cylindervæg 16 smørekanaler 20, som fødes med smøreolie. I cylinderforingen 10 er der monteret et bevæ¬geligt stempel 22 med en overdel 24, hvori der i stempel-ringnoter er monteret stempelringe 26 af kendt art samtstempelringe 28, 30 med i periferiretningen skrueliniefor¬met forløbende noter. Overdelen 24 er samlet med en under¬del 32, som har en i det væsentlige cylindrisk yderflade,hvis udvendige diameter er en smule mindre end overdelens24 udvendige diameter. Stemplet 22 er fastgjort til en ik¬ke illustreret stempelstang, hvis anden ende på kendt mådeer ledforbundet med et ikke vist krydshoved.A cylinder liner 10 (Fig. 1) in a two-stroke diesel engine, for example a ship engine, is in known manner formed with inlet openings 12 and outflow openings 14 and has in its inner cylinder wall 16 lubrication channels 20 which are fed with lubricating oil. In the cylinder liner 10 is mounted a movable piston 22 with a top part 24, in which piston ring grooves 26 of known kind and piston rings 28, 30 are mounted with circumferentially shaped grooves in the piston ring grooves. The upper part 24 is assembled with a lower part 32 having a substantially cylindrical outer surface, the outside diameter of which is slightly smaller than the outer diameter of the upper part 24. The plunger 22 is attached to a non-illustrated plunger rod, the other end of which is known in a manner connected to a crosshead not shown.
Stempelringen 28 (figur 2, 3) har på kendt måde en til ud¬presning mod cylinderforingens 10 cylindervæg 16 bestemtløbeflade 34 samt en som lås udformet slids 38, som eta¬blerer en fjedring og en udpresning af løbefladen 34 modcylindervæggen 16.The piston ring 28 (FIGS. 2, 3) has in a known manner a locking surface 34 for the cylinder wall 16 of the cylinder liner 10 and a locking slot 38 which establishes a spring and a pressing of the running surface 34 against the cylinder wall 16.
Ifølge opfindelsen har stempelringen 28 en sammenhængendeog over stempelringens 28 periferi skruelinieformet forlø¬bende not 36, og den er forsynet med skråt i forhold tilomløbsretningen forløbende kanaler 40, som udmunder i no¬ten 36, og som i forhold til ringens øvre endeflade 42 el¬ler dennes periferiretning forløber under en vinkel a, somhensigtsmæssigt er mere end 30°, men dog mindre end 90°.According to the invention, the piston ring 28 has a continuous and above the circumferential helical groove 36 of the piston ring 28, and is provided with sloping channels 40 extending in the direction of rotation 36 which open at the end 36 of the ring and relative to the upper end surface 42 of the ring. its circumferential direction extends at an angle α which is conveniently greater than 30 °, but less than 90 °.
Den gastætte stempelring 30 (figur 4, 5) har som lås 44ved sine ender i hinanden indgribende lapper 46, 48, derfor eksempel kendes fra det schweiziske patentskrift nr482 954. Den skruelinief ormede not 50 ender i dette til¬fælde før låsen 44, idet vinkelret på endefladen 42 ellerperiferiretningen forløbende kanaler 52 indmunder i denskruelinieformet forløbende not 50.The gas-tight piston ring 30 (Figures 4, 5) has as lock 44 at its ends engaging patches 46, 48, therefore, an example is known from Swiss patent specification No. 482 954. In this case, the screw-wormed groove 50 ends before the lock 44, perpendicular to the end face 42 or the circumferential direction, passageways 52 open into the helical groove groove 50.
Som et driftseksempel for stempel forbrændingsmotoren anta¬ges det, at stempel 22 under indvirkning af gastrykket fra sin øvre dødpunktstilling bevæger sig i retning mod krum¬tapakselen, idet ifølge figur 4 de skematisk viste smøre¬kanaler 20 befinder sig ud for noten 50. 1 pilens 54 ret¬ning strømmer gas gennem kanalen 52 og gennem noten 50,hvorved gas efter pilens 56 retning strømmer over smøreka¬nalerne 20 og accelererer smøreoliestrømningen gennem no¬ten. Samtidig foregår der en gennemspuling eller rensningaf periferinoten ved hjælp af gasstrømningen i retning sompilen 58. Herudover tjener kanalerne 40, 52 til trykudlig¬ning i forbindelse med noten 36, 50.As an operating example of the piston combustion engine, it is assumed that piston 22, under the influence of gas pressure from its upper dead-end position, moves in the direction of the crankshaft, as shown in Figure 4, the schematically shown lubrication channels 20 are adjacent the groove 50. 1 the direction of arrow 54 flows gas through duct 52 and through groove 50, whereby gas, following arrow 56, flows over lubrication channels 20 and accelerates lubricating oil flow through the nut. At the same time, a flushing or purification of the peripheral note takes place by means of the gas flow in the direction of the arrow 58. In addition, the ducts 40, 52 serve for pressure equalization in connection with the groove 36, 50.
Som det fremgår af figur 5, forløber den nedre flanke 60 inoten 50 vinkelret på stempelringens 30 løbeflade 34. Af¬standen I» til den nedre endeflade 62 på stempelringen erinformation om stempelringens stilling på stemplet 22 iperiferiretningen. Ved måling af bredden B kan slitagen påløbefladen 34 fastslås.As can be seen in Figure 5, the lower flange 60 extends inot 50 perpendicular to the piston ring 30 running surface 34. The distance I »to the lower end surface 62 of the piston ring provides information about the piston ring position on the piston 22 in the peripheral direction. By measuring the width B, the wear surface 34 can be determined.
Claims (1)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH439582 | 1982-07-19 | ||
CH4395/82A CH658106A5 (en) | 1982-07-19 | 1982-07-19 | PISTON INTERNAL COMBUSTION ENGINE WITH A SLOTED PISTON RING. |
Publications (4)
Publication Number | Publication Date |
---|---|
DK273983D0 DK273983D0 (en) | 1983-06-15 |
DK273983A DK273983A (en) | 1984-01-20 |
DK154720B true DK154720B (en) | 1988-12-12 |
DK154720C DK154720C (en) | 1989-05-01 |
Family
ID=4275326
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DK273983A DK154720C (en) | 1982-07-19 | 1983-06-15 | SLOT Piston ring for piston combustion engine |
Country Status (6)
Country | Link |
---|---|
JP (1) | JPS5928050A (en) |
CH (1) | CH658106A5 (en) |
DE (1) | DE3227583C2 (en) |
DK (1) | DK154720C (en) |
GB (1) | GB2124332B (en) |
IT (1) | IT1163760B (en) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6131768A (en) * | 1984-07-23 | 1986-02-14 | Mitsubishi Heavy Ind Ltd | Detecting method of wearing quantity in piston ring |
JPS61126148U (en) * | 1985-01-29 | 1986-08-08 | ||
DE19715758C1 (en) * | 1997-04-16 | 1998-11-05 | Man B & W Diesel Gmbh | Piston for a reciprocating piston internal combustion engine |
DE19942242A1 (en) * | 1999-09-04 | 2001-03-15 | Man B & W Diesel As Kopenhagen | Reciprocating machine |
DE102013205912A1 (en) * | 2013-04-04 | 2014-10-09 | Federal-Mogul Burscheid Gmbh | Piston ring with wear indicator |
DE102013206399A1 (en) * | 2013-04-11 | 2014-10-16 | Federal-Mogul Friedberg Gmbh | Piston ring with periodically varying tread width |
JP6836945B2 (en) * | 2017-03-28 | 2021-03-03 | 三菱重工業株式会社 | Piston ring and piston |
WO2019167241A1 (en) * | 2018-03-01 | 2019-09-06 | 株式会社リケン | Piston ring |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2689774A (en) * | 1950-11-15 | 1954-09-21 | Ramsey Corp | Piston ring |
CH482954A (en) * | 1967-07-27 | 1969-12-15 | Sulzer Ag | Piston ring |
JPS54251A (en) * | 1977-06-03 | 1979-01-05 | Hitachi Ltd | Air heat exchanger for heating and cooling |
IT1096661B (en) * | 1978-06-13 | 1985-08-26 | Montedison Spa | PROCEDURE FOR THE PREPARATION OF SOLID SPHEROIDAL PRODUCTS AT AMBIENT TEMPERATURE |
-
1982
- 1982-07-19 CH CH4395/82A patent/CH658106A5/en not_active IP Right Cessation
- 1982-07-23 DE DE3227583A patent/DE3227583C2/en not_active Expired
-
1983
- 1983-06-15 DK DK273983A patent/DK154720C/en not_active IP Right Cessation
- 1983-07-12 IT IT22023/83A patent/IT1163760B/en active
- 1983-07-15 GB GB08319157A patent/GB2124332B/en not_active Expired
- 1983-07-18 JP JP58129567A patent/JPS5928050A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
IT1163760B (en) | 1987-04-08 |
IT8322023A0 (en) | 1983-07-12 |
GB2124332A (en) | 1984-02-15 |
DE3227583A1 (en) | 1984-01-26 |
DE3227583C2 (en) | 1984-12-13 |
DK273983A (en) | 1984-01-20 |
DK154720C (en) | 1989-05-01 |
GB2124332B (en) | 1986-02-19 |
GB8319157D0 (en) | 1983-08-17 |
CH658106A5 (en) | 1986-10-15 |
DK273983D0 (en) | 1983-06-15 |
JPS5928050A (en) | 1984-02-14 |
JPS6336417B2 (en) | 1988-07-20 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AHB | Application shelved due to non-payment | ||
PBP | Patent lapsed |