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WO2015124163A1 - Segment de piston, chemise de cylindre et appariement de surfaces de glissement - Google Patents

Segment de piston, chemise de cylindre et appariement de surfaces de glissement Download PDF

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Publication number
WO2015124163A1
WO2015124163A1 PCT/EP2014/003155 EP2014003155W WO2015124163A1 WO 2015124163 A1 WO2015124163 A1 WO 2015124163A1 EP 2014003155 W EP2014003155 W EP 2014003155W WO 2015124163 A1 WO2015124163 A1 WO 2015124163A1
Authority
WO
WIPO (PCT)
Prior art keywords
piston ring
cylinder liner
recesses
sliding
piston
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.)
Ceased
Application number
PCT/EP2014/003155
Other languages
German (de)
English (en)
Inventor
Miroslav Marinovic
Santiago Mancho
Philipp Köser
Heiko Haase
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.)
Rolls Royce Solutions GmbH
Original Assignee
MTU Friedrichshafen GmbH
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 MTU Friedrichshafen GmbH filed Critical MTU Friedrichshafen GmbH
Publication of WO2015124163A1 publication Critical patent/WO2015124163A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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
    • F16J9/20—Rings with special cross-section; Oil-scraping rings
    • 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

Definitions

  • the invention relates to a piston ring according to the preamble of claim 1, a cylinder liner according to the preamble of claim 2 and a sliding pair according to the preamble of claim 3.
  • a piston ring is known, wherein the piston ring is insertable into a piston ring groove of a piston of an internal combustion engine and wherein the piston along a running surface of a cylinder liner of the internal combustion engine is movable and wherein the piston ring facing the Kolbenringnut inner surface, one of the inner surface opposite outer surface and two opposite, the inner surface and the
  • Exterior surface connecting side surfaces includes. To minimize wear of a mating surface formed by the running surface of the cylinder liner is proposed in DE 10 2010 046 552 AI to introduce a wear-resistant material in local recesses of the piston ring. The targeted introduction of wear-resistant materials is expensive to manufacture.
  • the object of the invention is in addition to a manufacturing technology easily achievable achievement of a smooth-running piston ring or a low frictional resistance having
  • Tread of the cylinder liner also an optimization of an oil budget in the sense of optimized demolition-free lubrication with minimal oil consumption.
  • the piston ring according to the invention comprises a plurality of open oil-collecting and / or oil-collecting depressions systematically arranged on its outer surface.
  • Such a Piston ring can be produced with a few different manufacturing steps, since in these for the production of a lubricating oil receiving and lubricating oil entraining outer surface only depressions must be introduced and after the introduction of the wells no further manufacturing steps are required.
  • the cylinder liner of an internal combustion engine comprises several on its tread systematically arranged open ⁇ laufhehmende and / or oil-bearing depressions.
  • Such a cylinder liner can be produced with a few different manufacturing steps, as in the tread for producing a lubricating oil receiving and lubricating oil-holding surface only depressions must be introduced and after the introduction of the wells no further manufacturing steps are required.
  • this when used in an internal combustion engine, results in low coefficients of friction for cylinder liners having running piston rings passing through their oil-collecting and oil-retaining cylinders
  • the piston ring comprises more on its outer surface
  • this comprises up to three piston rings, wherein at least one of the piston rings comprises depressions.
  • the sliding pair comprises only one piston ring, it is equipped with recesses, thus ensuring a low-friction and oil-saving run of the pairing.
  • the sliding pair comprises two piston rings
  • either the upper piston ring or the lower piston ring or both piston rings with recesses are or are provided. If only the upper piston ring has recesses, in particular a loss of oil deteriorating the exhaust gas values into the combustion chamber is minimized. If only the lower ring has depressions, an optimal supply of the upper piston ring is ensured, since the lower piston ring ensures a tear-free lubricating film on the running surface of the cylinder liner, which is swept by the upper piston ring and serves to supply it. If both piston rings are equipped with recesses, the advantages mentioned accumulate.
  • the pair of bearings comprises three piston rings, either the upper piston ring or the lower piston ring or the middle piston ring or the two upper piston rings or the two lower piston rings or the upper and the lower piston ring or all three
  • Piston rings equipped with recesses With respect to an equipment of the upper and / or the lower piston ring with recesses may on the top to a sliding pair with two
  • Piston rings exported benefits are referenced.
  • a sole equipment of the central piston ring with recesses supply of the upper piston ring is ensured with simultaneous smooth running of the piston.
  • Piston rings with recesses ensures smooth running, an oil supply, a consistently tear-free oil film on the running surface of the cylinder liner and low oil consumption.
  • the cylinder liner or the sliding pairing it is provided to form the cylinder liner in the region of its tread with compressive residual stresses, wherein the region of the tread is in particular pressure-strengthened and / or pressure-smoothed.
  • Cylinder liner with such a surface is the entire sliding mating
  • the outer surface of the piston ring comprises a sliding region close to the running surface, a forehead region lying above the sliding region and / or a combustion region remote from the combustion region, or the outer surface of the piston ring comprises two sliding surfaces near sliding surface and one between this lying return.
  • the piston ring or the piston ring of the sliding pair on its outer surface curved or baiig execute and form as a ring-like ring.
  • Such a piston ring offers a variety of possibilities for the arrangement of
  • piston ring or the piston ring of the sliding pair on its outer surface with a sliding region and an end region, the two regions being at an angle of less than 180 ° to one another and the sliding region and the tread enclosing a smaller angle than the front region and the tread.
  • Such a design is particularly advantageous for a piston ring used as a minute ring.
  • the single recess on the outer surface of the piston ring in the circumferential direction of the piston ring and / or on the running surface of the cylinder liner in the circumferential direction of the cylinder liner with a length between 0.1 mm and 10 mm and in particular with a length less than 1 mm form and / or the individual recess on the outer surface of the piston ring in the radial direction relative to a central axis of the piston ring and / or on the running surface of the cylinder liner in the radial direction with respect to a central axis
  • Cylinder liner with a depth between 0.001 mm and 1mm and in particular with a depth less than 0.1 mm form and / or the individual recess on the outer surface of the piston ring in the axial direction with respect to a central axis of the piston ring and / or on the running surface of the cylinder liner in the radial Direction relative to a central axis of
  • Cylinder liner with a width between 0.01 mm and 1 mm and in particular a width less than 0.1 mm form and / or a distance which adjacent recesses of the outer surface of the piston ring in the axial direction relative to a center axis of the piston ring to each other and / or have adjacent depressions of the tread of the
  • Cylinder liner in the axial direction with respect to a central axis of the cylinder liner have to provide in a size of 0.1 mm and 10 mm and in particular a size of less than 1 mm and / or a distance which adjacent recesses of
  • the piston ring or in the cylinder liner or in the sliding pair arranged on the outer surface of the piston ring recesses and / or arranged on the running surface of the cylinder liner recesses with respect to their length and / or with respect to their depth and / or respect Their width identical perform and realize this particular with identical ⁇ ffhungsquerroughe.
  • the piston ring has similar properties on its entire outer surface or the cylinder liner on its entire running surface.
  • this volume of oil is taken up to a part of the wells of the piston rings and / or from the wells of the tread of the cylinder liner, to another part in particular as a lubricating film on the Tread of the cylinder liner is located and to another part in particular on the outer surface of the piston or rings.
  • an oil volume or an oil film is understood as meaning a lubricating oil film or a lubricating oil volume.
  • Figure lb is an enlarged view of the upper piston ring shown in Figure la;
  • Figure lc is an enlarged view of the lower piston ring shown in Figure la;
  • Figure 2a, 2b is a perspective view of a third piston ring and a detailed view of the third piston ring;
  • Figure 3a, 3b is a perspective view of a fourth piston ring and a detailed view of the fourth piston ring;
  • Figure 4a, 4b is a perspective view of a fifth piston ring and a detailed view of the fifth piston ring;
  • Figure 5a - 5e views of outer surfaces of other piston rings in unwound representation
  • Figures 6a - 6d further views of the third piston ring shown in Figures 2a and 2b;
  • Figure 7a, 7b views of outer surfaces of other piston rings in developed view
  • Figure 7c is a developed plan view of the tread shown in Figure la
  • Figure 8a, 8b detailed views of a 13th piston ring
  • Figure 9a detailed views of a 14th piston ring.
  • FIG. 1 a shows a detail of a combustion engine 1 in a sectional side view.
  • a cylinder wall 2 is shown, which carries a cylinder liner 3.
  • a piston 5 is shown, which comprises two piston ring grooves 6, 7, in each of which a piston ring 8, 9 is seated.
  • Piston rings 8, 9 are opposed to outer surfaces 8a, 9a of the tread 4. At a
  • the piston 5 slides with the outer surfaces 8a, 9a of its piston rings 8, 9 on a located on the tread 4 oil film 12.
  • the oil film 12 is part of a located in the internal combustion engine 1 Oil volume 13, which is available for lubrication.
  • the piston ring 8 and the piston ring 9 each form a pairing GP with the cylinder liner 3, wherein the piston ring 8 and 9 with its outer surface 8a and 9a on the tread 4 of
  • Cylinder liner 3 with the interposition of an oil film 12 slides.
  • Figure lb shows the upper piston ring 8 in an enlarged view and with more details, was omitted in the representation of the piston ring 8 on a hatching of the cut surface for the sake of clarity.
  • the piston ring 8 also comprises an inner surface 8b, which faces a bottom 6a of the piston ring groove 6 (see FIG. 1a).
  • the piston ring 8 also comprises two side surfaces 8c and 8d, which connect the inner surface 8b and the outer surface 8a.
  • the outer surface 8a itself comprises a sliding region 14, a front region 15a close to the combustion chamber and a front region 15b remote from the combustion chamber.
  • the extension of the regions 14, 15a and 15b is indicated in the figure lb with two transverse bars.
  • depressions 16, 17 are arranged at regular intervals. Through these recesses 16, 17 an oil transfer is improved, thereby optimizing the sliding process.
  • Figure lc shows the lower piston ring 9 in an enlarged view and with more details, was omitted in the representation of the piston ring 9 on a hatching of the cut surface for the sake of clarity.
  • the piston ring 9 also comprises an inner surface 9b, which faces a bottom 7a of the piston ring groove 7 (see FIG. 1a).
  • the piston ring 9 also comprises two side surfaces 9c and 9d which connect the inner surface 9b and the outer surface 9a.
  • the outer surface 9a itself comprises a sliding region 18 and an end region 19 close to the combustion chamber.
  • depressions 20 are arranged on the sliding region 18 at regular intervals. In the area of these depressions 20, oil pads 21 are formed during operation, which improve the sliding action and ensure a reliable seal between the piston ring 9a and the running surface 4.
  • Figure 2a shows a third piston ring 101 in a perspective view, wherein the piston ring 101 is shown for simplicity of illustration as a closed ring, although this is designed as a slotted ring.
  • FIG. 2b shows the area of the piston ring 101 marked with a rectangle in FIG. 2a in an enlarged view.
  • the piston ring 101 has on its outer surface 101a outside of a circumferential sliding region 102 on both an upper end region 103 and on a lower end region 104, a plurality of systematically arranged recesses 105 and 106, respectively.
  • the depressions 105 and 106 have an elongated rectangular opening cross-section Q105 and Q106 and are each offset in two rows R105a, R105b and R106a, R106b, so that in the directions of movement x, x 'of the piston ring 101, a running surface of a not shown here Cylinder liner is swept over at least one recess rows Rl 05 a, Rl 05b and at least one recess of the rows R106a, R106b.
  • the recesses 105 point in the circumferential direction U101 around a central axis LI 01 of the piston ring 101 (see FIG. 2 a), on which a piston, which does not represent the piston ring 101, also moves, a length LI 05. In the radial direction or in the outer surface 101a, the recesses have a depth T105. In the axial direction x or x ', in which the central axis LI 01 extends, the recesses have a width B105.
  • Figure 3a shows a fourth piston ring 201 in a perspective view, wherein the piston ring 201 is shown for simplicity of illustration as a closed ring, although this is designed as a slotted ring.
  • Figure 3b shows the marked in Figure 3a with a rectangle region of the piston ring 201 in an enlarged view.
  • the piston ring 201 has, on its outer surface 201a, outside of a circumferential sliding region 202, both on an upper end region 203 and on a lower end region 204, a multiplicity of systematically arranged recesses 205 and 206, respectively.
  • the recesses 205 and 206 have a circular segment-like
  • FIG. 4a shows a fifth piston ring 301 in a perspective view.
  • FIG. 4b shows the region of the piston ring 301 marked with a rectangle in FIG. 4a in an enlarged view.
  • the piston ring 301 has on its outer surface 301 a outside of a circumferential sliding portion 302 on both an upper end portion 303 and on a lower end region 304 a plurality of systematically arranged recesses 305 and 306 on.
  • the recesses 305 and 306 have congruent T-shaped opening cross-sections Q305 and Q306, and are arranged consecutively spaced apart in rows R305 and R306, respectively.
  • FIG. 5a shows a unwound portion of an outer surface 401a of a sixth piston ring 401.
  • the piston ring 401 has on its outer surface 401a outside a circumferential sliding portion 402 both on an upper end portion 403 and on a lower end portion 404 a plurality of systematically arranged recesses 405 and 406 on.
  • the recesses 405 and 406 are combined with each other into zigzag-shaped recesses.
  • Figure 5b shows a developed portion of an outer surface 501a of a seventh piston ring 501.
  • the piston ring 501 has on its outer surface 501a outside a circumferential sliding portion 502 both on an upper end portion 503 and on a lower end portion 504, a plurality of systematically arranged recesses 505 and 506 on.
  • the four recesses 505 and 506 are each too trapezoidal
  • FIG. 5c shows a developed section of an outer surface 601a of an eighth piston ring 601.
  • the piston ring 601 has on its outer surface 601a outside a circumferential sliding region 602 both on an upper end region 603 and on a lower end region 604 a multiplicity of systematically arranged depressions 605 or 601a. 606 on.
  • the recesses 605 and 606 are designed as arc sections, which line up.
  • FIG. 5 d shows a unwound portion of an outer surface 701 a of a ninth piston ring 701.
  • the piston ring 701 has a multiplicity of systematically arranged recesses on its entire outer surface 701 a, both on its sliding region 702 and on its upper end region 703 and on its lower end region 704 705 on.
  • the recesses 705 have a circular opening cross-section Q705 and are each arranged in four rows R705a to R705b at a distance and offset from one another.
  • FIG. 5 e shows a unwound portion of an outer surface 801 a of a tenth piston ring 801.
  • the piston ring 801 has a multiplicity of systematically arranged depressions on its entire outer surface 801 a, namely both on its sliding region 802 and on its upper end region 803 and on its lower end region 804 805 on.
  • the recesses 805 have an elongated rectangular opening cross-section Q805 and are spaced apart and offset from one another in four rows R805a to R805b, respectively.
  • FIG. 6a shows a plan view of the third piston ring 101 shown in simplified perspective view in FIG. 2a, wherein it can now be seen in plan view that the piston ring 101 is designed as an open piston ring 101, which is interrupted by a slot S101.
  • FIG. 6b shows a section through the representation of FIG. 6a corresponding to the section line ViaVia.
  • the rounded outer surface 101a of the piston ring 101 can be seen, which is designed according to its shape as a compression ring or 1st piston ring.
  • FIG. 6c shows the detail of the piston ring 101 in FIG. 6b labeled VIc
  • Figure 6d shows an enlarged view of the outer surface 101a of the piston ring 101 in a developed view.
  • the recesses 105, 106 arranged on the upper and lower end regions 103, 104 are designed mirror-symmetrically to the sliding region 102.
  • Lengths LI 06 and widths B106 of the depressions 106 are dimensioned identically to lengths LI 05 and widths B105 (see FIG. 2 b) of the depressions 105.
  • Figure 7a shows a developed portion of an outer surface 901a of an eleventh piston ring 901.
  • the piston ring 901 has on its outer surface 901a a plurality of systematically arranged recesses 905 and 906, respectively, facing a central axis L901 are directed to the left and to the right.
  • the recesses 905 and 906 form repeating screens with each other.
  • Figure 7b shows a developed portion of an outer surface 1001a of a twelfth piston ring 1001.
  • the piston ring 1001 has on its outer surface 1001a a plurality of systematically arranged recesses 1005 and 1006, respectively, which are directed to a central axis LI 001 to the left and right.
  • a plurality of leftward depressions 1005 terminate in one direction in a recess 1006 pointing to the right.
  • Figure 7c shows a developed plan view of a detail of the in the figure la
  • the recesses 22 are designed as elongated recesses which are aligned transversely to a direction of movement of a piston, not shown, in the x and x 'direction.
  • the recesses 23 are designed as elongated recesses which run in a direction of movement x or x 'of a piston, not shown.
  • the recesses 24, 25 are designed as elongated recesses, which obliquely to a
  • FIG. 8 a shows a detail of a piston ring 1 11 analogously to the representation of FIG. 6 c.
  • the piston ring 111 is designed as a minute ring which is used as a second piston ring and has the function of a compression ring as well as the function of a compression ring
  • Oil scraper ring takes over.
  • An outer surface 11a of the piston ring 111 comprises a
  • Sliding portion 112 and a forehead portion 114 which together - when viewed in section - include an angle cd smaller than 180 ° and wherein an angle ⁇ x2, in which the
  • Sliding portion 112 viewed in section to a schematically indicated running surface 4 of a not shown cylinder liner 3 is smaller than an angle a3, in which the end portion 114 - viewed in section - is aligned with the tread 4.
  • a depression formed on the sliding region 112 can be seen 115. This has a depth T 15.
  • Figure 8b shows an enlarged view of the outer surface li la of the piston ring 111 in a developed view.
  • the depressions 115 arranged on the sliding region 112 are arranged distributed in repeating quadrams on the circumference of the piston ring 111 at equal distances from one another.
  • FIG. 9a shows a detail of a piston ring 121 analogous to the representation of FIG. 6c.
  • Piston ring 121 is designed as an oil scraper ring, which is provided as a third piston ring and exclusively takes on the function of an oil scraper ring.
  • An outer surface 121a of the piston ring 121 comprises two spaced-apart sliding portions 122a, 122b and a recession 127 located between the two sliding portions. In the recess 127, stripped lubricating oil is collected and discharged through one or more channels (not shown) into a crankshaft space.
  • Figure 9b shows an enlarged view of the outer surface 121a of the piston ring 121 in a developed view.
  • Recesses 125, 126 are formed exclusively on the upper and lower sliding portions 122a, 122b. In this case, recesses 125, 126 arranged in pairs and offset from one another on both sliding regions 122a, 122b form repeating modules of the piston ring 121.

Landscapes

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

Abstract

L'invention concerne un segment de piston (8, 9), le segment de piston (8, 9) comprenant plusieurs évidements ouverts, collecteurs d'huile et/ou d'entraînement d'huile, disposés systématiquement sur sa surface extérieure (8a, 9a). L'invention porte aussi sur une chemise de cylindre (3), la chemise de cylindre (3) présentant plusieurs évidements ouverts, collecteurs d'huile et/ou de retenue d'huile, disposés systématiquement sur sa surface de glissement (4). Par ailleurs, l'invention porte encore sur un appariement de surfaces de glissement (GP) composé d'un segment de piston (8, 9) et d'une chemise de cylindre (3), dans lequel le segment de piston (8, 9) comprend plusieurs évidements ouverts collecteurs d'huile et/ou d'entraînement d'huile, disposés systématiquement sur sa surface extérieure (8a, 9a) et/ou dans lequel la chemise de cylindre (3) comprend plusieurs évidements ouverts, collecteurs d'huile et/ou de retenue d'huile, disposés systématiquement sur sa surface de glissement (4).
PCT/EP2014/003155 2014-02-24 2014-11-26 Segment de piston, chemise de cylindre et appariement de surfaces de glissement Ceased WO2015124163A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102014002397.4 2014-02-24
DE102014002397.4A DE102014002397A1 (de) 2014-02-24 2014-02-24 Kolbenring, Zylinderlaufbuchse und Gleitpaarung

Publications (1)

Publication Number Publication Date
WO2015124163A1 true WO2015124163A1 (fr) 2015-08-27

Family

ID=52002893

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2014/003155 Ceased WO2015124163A1 (fr) 2014-02-24 2014-11-26 Segment de piston, chemise de cylindre et appariement de surfaces de glissement

Country Status (2)

Country Link
DE (1) DE102014002397A1 (fr)
WO (1) WO2015124163A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2018080752A (ja) * 2016-11-16 2018-05-24 株式会社リケン ピストンリング
CN108504858A (zh) * 2018-01-23 2018-09-07 胡小多 一种伴生稀贵金属元素富集提取分离结构
CN109253252A (zh) * 2018-09-07 2019-01-22 浙江安康汽车零部件有限公司 带刮油、回油功能的活塞气环及活塞组件
US10648561B2 (en) 2017-04-07 2020-05-12 Board Of Supervisors Of Louisiana State University And Agricultural And Mechanical College Piston ring

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US3781022A (en) * 1969-12-01 1973-12-25 Rikagaku Kenkyusho Piston ring and cylinder liner having minute oil-retaining indentation
US4258084A (en) * 1978-10-17 1981-03-24 Potters Industries, Inc. Method of reducing fuel consumption by peening
DE19833646C1 (de) * 1998-07-25 1999-10-14 Daimler Chrysler Ag Zylinderlaufbahn einer Zylinderbohrung eines 2-Takt-Hubkolben-Verbrennungsmotors und Verfahren zur Herstellung derselben
US20070101967A1 (en) * 2005-11-05 2007-05-10 Ian Pegg Engine and a method of making same
WO2008031468A2 (fr) * 2006-09-11 2008-03-20 Federal-Mogul Burscheid Gmbh Chemise de cylindre humide à surface résistant à la cavitation
FR2976333A1 (fr) * 2011-06-09 2012-12-14 Peugeot Citroen Automobiles Sa Segment de piston pour moteur thermique equipant un vehicule automobile

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JPH10252891A (ja) * 1997-03-14 1998-09-22 Nippon Piston Ring Co Ltd アルミシリンダ用第二圧力リングおよびその製造方法
ES2225361T5 (es) * 2001-07-09 2011-03-23 Gehring Technologies Gmbh Pieza de trabajo con una superficie solicitable tribológicamente y procedimiento para la formación de una superficie de este tipo.
DE10134736C2 (de) * 2001-07-17 2003-10-09 Man B&W Diesel A/S, Copenhagen Sv Großmaschine mit wenigstens einer Gleitfläche sowie Verfahren zur Herstellung einer Gleitfläche
JP2007321860A (ja) * 2006-05-31 2007-12-13 Nissan Motor Co Ltd 低摩擦摺動部材
JP2010236649A (ja) * 2009-03-31 2010-10-21 Nippon Piston Ring Co Ltd ピストンリングとシリンダまたはシリンダライナの組合せ、およびこれに用いられるピストンリング
DE102010046552A1 (de) 2010-09-27 2012-03-29 Federal-Mogul Burscheid Gmbh Kolbenring
JP5620794B2 (ja) * 2010-11-18 2014-11-05 いすゞ自動車株式会社 ピストンリング
JP5772584B2 (ja) * 2011-12-28 2015-09-02 いすゞ自動車株式会社 ピストンリング
DE102012022268B4 (de) * 2012-11-14 2014-07-17 Federal-Mogul Burscheid Gmbh Verfahren zur Herstellung eines Kolbenrings sowie danach hergestellter Kolbenring

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3781022A (en) * 1969-12-01 1973-12-25 Rikagaku Kenkyusho Piston ring and cylinder liner having minute oil-retaining indentation
US4258084A (en) * 1978-10-17 1981-03-24 Potters Industries, Inc. Method of reducing fuel consumption by peening
DE19833646C1 (de) * 1998-07-25 1999-10-14 Daimler Chrysler Ag Zylinderlaufbahn einer Zylinderbohrung eines 2-Takt-Hubkolben-Verbrennungsmotors und Verfahren zur Herstellung derselben
US20070101967A1 (en) * 2005-11-05 2007-05-10 Ian Pegg Engine and a method of making same
WO2008031468A2 (fr) * 2006-09-11 2008-03-20 Federal-Mogul Burscheid Gmbh Chemise de cylindre humide à surface résistant à la cavitation
FR2976333A1 (fr) * 2011-06-09 2012-12-14 Peugeot Citroen Automobiles Sa Segment de piston pour moteur thermique equipant un vehicule automobile

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2018080752A (ja) * 2016-11-16 2018-05-24 株式会社リケン ピストンリング
US10648561B2 (en) 2017-04-07 2020-05-12 Board Of Supervisors Of Louisiana State University And Agricultural And Mechanical College Piston ring
CN108504858A (zh) * 2018-01-23 2018-09-07 胡小多 一种伴生稀贵金属元素富集提取分离结构
CN109253252A (zh) * 2018-09-07 2019-01-22 浙江安康汽车零部件有限公司 带刮油、回油功能的活塞气环及活塞组件

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