SG191408A1 - Piston assembly for alernative compressor - Google Patents
Piston assembly for alernative compressor Download PDFInfo
- Publication number
- SG191408A1 SG191408A1 SG2013050299A SG2013050299A SG191408A1 SG 191408 A1 SG191408 A1 SG 191408A1 SG 2013050299 A SG2013050299 A SG 2013050299A SG 2013050299 A SG2013050299 A SG 2013050299A SG 191408 A1 SG191408 A1 SG 191408A1
- Authority
- SG
- Singapore
- Prior art keywords
- piston
- cylinder
- cylinder assembly
- amorphous carbon
- dlc
- Prior art date
Links
- 238000000576 coating method Methods 0.000 claims abstract description 14
- 239000011248 coating agent Substances 0.000 claims abstract description 12
- 230000003746 surface roughness Effects 0.000 claims abstract description 9
- 229910003481 amorphous carbon Inorganic materials 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 7
- RKTYLMNFRDHKIL-UHFFFAOYSA-N copper;5,10,15,20-tetraphenylporphyrin-22,24-diide Chemical class [Cu+2].C1=CC(C(=C2C=CC([N-]2)=C(C=2C=CC=CC=2)C=2C=CC(N=2)=C(C=2C=CC=CC=2)C2=CC=C3[N-]2)C=2C=CC=CC=2)=NC1=C3C1=CC=CC=C1 RKTYLMNFRDHKIL-UHFFFAOYSA-N 0.000 claims description 6
- 229910045601 alloy Inorganic materials 0.000 claims description 5
- 239000000956 alloy Substances 0.000 claims description 5
- 239000010935 stainless steel Substances 0.000 claims description 5
- 229910001220 stainless steel Inorganic materials 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 3
- 150000004767 nitrides Chemical class 0.000 claims description 3
- 229910052755 nonmetal Inorganic materials 0.000 claims description 3
- 150000003568 thioethers Chemical class 0.000 claims description 3
- 239000010410 layer Substances 0.000 description 21
- 239000000203 mixture Substances 0.000 description 5
- 230000002028 premature Effects 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 239000010687 lubricating oil Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000002939 deleterious effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000007730 finishing process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B35/00—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for
- F04B35/04—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for the means being electric
- F04B35/045—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for the means being electric using solenoids
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/22—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the deposition of inorganic material, other than metallic material
- C23C16/26—Deposition of carbon only
- C23C16/27—Diamond only
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/06—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the coating material
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/0005—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00 adaptations of pistons
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/12—Casings; Cylinders; Cylinder heads; Fluid connections
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/14—Pistons, piston-rods or piston-rod connections
-
- 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
- F16J1/00—Pistons; Trunk pistons; Plungers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
- F05C2201/00—Metals
- F05C2201/04—Heavy metals
- F05C2201/0433—Iron group; Ferrous alloys, e.g. steel
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
- F05C2203/00—Non-metallic inorganic materials
- F05C2203/08—Ceramics; Oxides
- F05C2203/0804—Non-oxide ceramics
- F05C2203/0808—Carbon, e.g. graphite
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
- F05C2203/00—Non-metallic inorganic materials
- F05C2203/08—Ceramics; Oxides
- F05C2203/0804—Non-oxide ceramics
- F05C2203/083—Nitrides
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
- F05C2203/00—Non-metallic inorganic materials
- F05C2203/08—Ceramics; Oxides
- F05C2203/0804—Non-oxide ceramics
- F05C2203/0856—Sulfides
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
- F05C2253/00—Other material characteristics; Treatment of material
- F05C2253/12—Coating
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Combustion & Propulsion (AREA)
- Inorganic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Compressor (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
- Chemical Vapour Deposition (AREA)
Abstract
The present invention refers to a piston/cylinder assembly for alternative compressor, wherein the piston performs a reciprocating movement inside the cylinder, wherein piston surface (1 ) and cylinder surface have a surface roughness parameter Rpk of less than about 60 nm and a surface roughness parameter Rvk of less than 100 nm; and said piston surface (1 ) receives a coating comprising at least a support layer 2 and at least a DLC layer (3).
Description
“PISTON ASSEMBLY FOR ALERNATIVE COMPRESSOR”
The present invention refers to a piston/cylinder assembly for alternative compressors, and, more specifically, to a piston/cylinder assembly for linear compressors.
The function of a compressor is to elevate the pressure of determined volume of fluid to a pressure required to effect a refrigeration cycle. The thus called alternative compressors, where a piston reciprocately slides inside a cylinder to carry out compression of gases, are known from the art.
A contact between a reciprocating piston and a cylinder can generate high mechanical losses, and may cause damage and premature failure in a compressor.
Furthermore, such a contact between parts may increase noise, operational temperature, compressor vibration, and loss of effectiveness, thus also contributing to increase in equipment energy power consumption.
In some types of compressors, a lubricating oil between the moving parts is predicted; nevertheless, in some applications to linear compressors the presence of oil is deleterious.
In an attempt to solve this problem related to a piston/cylinder friction without using lubricating oil, some technical solutions have been developed for using special coatings in such parts.
This is, for example, the case of solutions disclosed in US Patent 6,641,337 and JP 2001107860, which refer to application of DLC (Diamond-like Carbon) to moving parts of a compressor. : : However, even these already known solutions do not entirely solve the problem of stress contact and consequent wear between parts, since the concentration of contact stresses over harsh peaks of DLC ends up causing premature wear of the coating.
Objects of the Invention
Therefore, an object of the present invention relates to a piston/cylinder assembly for an alternative compressor, which provides lesser friction between the piston and cylinder, thus preventing premature wear of the parts.
The present invention achieves the objects mentioned above by providing a piston/cylinder assembly for an alternative compressor where said piston performs a reciprocating movement inside said cylinder, where piston surface and cylinder surface comprise a surface roughness with surface roughness parameter Rpk of less than about 60 and a surface roughness parameter Rvk of less than 100 nm; and the piston surface receives a coating comprising at least one support layer and at least one DLC layer (3).
In a preferred embodiment of the present invention, the cylinder material comprises stainless steel, the support layer material is selected from nitrides and sulfides, and the DLC layer material is selected from non-hydrogenated amorphous carbon, hydrogenated amorphous carbon, non-hydrogenated tetragonal amorphous carbon, and hydrogenated tetragonal amorphous carbon. Said DLC layer may further comprise metal and non-metal alloy elements.
Figure 1 illustrates a schematic view of the coating of the piston/cylinder assembly in accordance with a preferred embodiment of the present invention.
Figure 2 illustrates a comparative graphic representation between the present invention and the solution of the state of the art.
Figure 3 illustrates a schematic representation of the coated surfaces of the piston/cylinder assembly in accordance with the preferred embodiment of the present invention.
Next, the present invention will be described in more details based on execution examples represented by the appended drawings.
In order to ensure the correct functioning of the piston/cylinder assembly without affecting the effectiveness in function of wear and in the absence of lubrication by lubricating oil, the present invention provides for coating the outer surface of the piston with thin films of
DLC in association with a base coating that increases the mechanical strength of the DLC coating applied to the surface. .
Thus, as can be seen from Figure 1, the present invention comprises a piston 1 (only a portion of its outer surface is illustrated) which receives a coating preferably composed of a mechanical support layer 2 and a DLC layer 3. In the preferred embodiment of the present invention, the support layer 2 and support layer 3 generate a coating having a thickness of approximately 3-10 microns.
Said support layer 2 can comprise a single or multiple elements disposed in the following forms: gradually variable chemical composition, constant chemical composition, monolayer or multilayer.
In addition, the composition of support layer 2 can vary in accordance with mechanical tensiles of a specific design of a piston/cylinder assembly, wherein said layer can comprise nitrides (CrN, FeN, TiN, AITiN, CAITIN, etc.), sulfides (MoS,, and variations, WS,, and variations, etc.; and other coatings having intermediate hardness between the substrate and DLC in order to give mechanical support to high loads acting on the piston.
With regard to the DLC 3 layer, same is composed of a carbon-based coating having variable proportions of hydrogen, and it may also contain the following variations: a-
C:H (Non-Hydrogenated Amorphous Carbon); a-C:H (Hydrogenated Amorphous Carbon); ta-
C (Non-Hydrogenate Tetragonal Amorphous Carbon); ta-C:H (Hydrogenated Tetragonal
Amorphous Carbon). Besides these variations, addition of alloy elements can also be used to obtain specific properties for each application, wherein a layer with addition of alloy elements is designated Me-DCL, wherein Me refers to the (metal or non-metal) added elements.
The disposition of layer 3 can also comprise variations concerning the proportion of alloy elements, and can be, for example: a gradually variable chemical composition, a constant chemical composition, a monocompound, or DLC variations disposed in intercalated form.
Application of the DLC layer is carried out after preparing the piston surface that will receive said layer. This preparation involves a surface finishing process so as to obtain a surface roughness with parameters Rpk < 60 nm and Rvk< 100 nm obtained by topographic measurement of the surfaces.
To ensure the reduction of the friction on the piston/cylinder assembly, the cylinder surface is prepared so as to obtain a cylinder surface with surface roughness having parameters Rpk< 60 nm and Rvk< 100 nm achieved by topographical measurement of the surfaces.
In this sense, Figure 2 schematically shows the wear of DLC layer on a surface without the roughness specified above (Figures a) and b)) and with the roughness specified above (Figures c¢) and d)).
As can be seen from Figures a) and b), under high roughness condition, DLC layers undergoes a premature wear due to the concentration of contact stresses in the surface harsh peaks (that is, they end up forming punctual support areas on the layer). Such a premature wear then leaves the piston substrate exposed.
Nevertheless, when the roughness is within the parameters proposed by the present invention — such as shown in Figures c) and d), a gradual and mild wear on the DLC layer occurs due to the formation of a greater area of support between the surfaces resulting in the reduction of contact stresses.
In the preferred embodiment of the present invention, said piston/cylinder assembly is made of stainless steel.
As can be seen from Figure 3, the use of a stainless steel cylinder allows for a tribolayer formation uniformly distributed at both contact interfaces due to the relative movement between the parts. Said tribolayer is formed due to the elimination (by mild wear) of harsh peaks from the stainless steel of the cylinder and of DLC as well as residues of materials used in the remaining parts of the compressor and the atmosphere application thereof.
Therefore, the formation of a longer lasting DLC coating by fabricating one of the parts of the piston/cylinder assembly ensures the formation of a tribolayer, which is essential for the functioning of the tribologic pair, allowing for the piston/cylinder assembly to function without significant wear, low friction and suitable durability.
It should be construed that this description based on the figures above only refers to one of the possible embodiments of the object of the present invention, wherein the real scope of the object to be protected is defined by the appended claims.
Claims (5)
1. Piston/cylinder assembly for an alternative compressor wherein the piston performs a reciprocating movement inside the cylinder, characterized in that: piston surface (1) and cylinder surface have a surface roughness parameter Rpk of 5 less than about 60 nm and a surface roughness parameter Rvk of less than 100 nm; said piston surface (1) receives a coating comprising at least a support layer 2 and at least a DLC layer (3).
2. Piston/cylinder assembly, in accordance with claim 1, characterized in that the cylinder material is stainless steel.
3. Piston/cylinder assembly, in accordance with claim 1 or 2, characterized in that the material of said support layer (2) is selected from nitrides and sulfides.
4. Piston/cylinder assembly, in accordance with claim 1, 2, or 3, characterized in that the material of said DLC layer (3) is selected from non-hydrogenated amorphous carbon, hydrogenated amorphous carbon, non-hydrogenated tetragonal amorphous carbon, and hydrogenated tetragonal amorphous carbon, or a combination thereof.
5. Piston/cylinder assembly, in accordance with claim 4, characterized in that said DLC layer (3) further comprises metal or non-metal alloy elements.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| BRPI1009955-7A BRPI1009955A2 (en) | 2010-12-27 | 2010-12-27 | piston - reciprocating compressor cylinder assembly |
| PCT/BR2011/000460 WO2012088571A1 (en) | 2010-12-27 | 2011-12-08 | Piston assembly for alernative compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SG191408A1 true SG191408A1 (en) | 2013-08-30 |
Family
ID=46382111
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SG2013050299A SG191408A1 (en) | 2010-12-27 | 2011-12-08 | Piston assembly for alernative compressor |
Country Status (9)
| Country | Link |
|---|---|
| EP (1) | EP2659025A1 (en) |
| JP (1) | JP2014502691A (en) |
| KR (1) | KR20140067961A (en) |
| CN (1) | CN103298972B (en) |
| AR (1) | AR084603A1 (en) |
| BR (1) | BRPI1009955A2 (en) |
| SG (1) | SG191408A1 (en) |
| TW (1) | TWI461605B (en) |
| WO (1) | WO2012088571A1 (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104251193A (en) | 2013-06-28 | 2014-12-31 | Lg电子株式会社 | Linear compressor |
| CN203770066U (en) * | 2013-06-28 | 2014-08-13 | Lg电子株式会社 | Linear compressor |
| CN203906210U (en) | 2013-06-28 | 2014-10-29 | Lg电子株式会社 | Linear compressor |
| CN203906214U (en) | 2013-06-28 | 2014-10-29 | Lg电子株式会社 | Linear compressor |
| CN204126840U (en) | 2013-06-28 | 2015-01-28 | Lg电子株式会社 | Linearkompressor |
| CN104251192B (en) | 2013-06-28 | 2016-10-05 | Lg电子株式会社 | Linearkompressor |
| WO2018018149A1 (en) * | 2016-07-29 | 2018-02-01 | Industries Mailhot Inc. | A cylinder piston rod and method of fabrication thereof |
Family Cites Families (25)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW394800B (en) * | 1995-01-17 | 2000-06-21 | Qqc Inc | Surface modification and/or fabrication techniques |
| JP3340001B2 (en) * | 1995-10-31 | 2002-10-28 | 京セラ株式会社 | Wear-resistant material |
| DE19850346C2 (en) * | 1998-11-02 | 2003-06-26 | Fraunhofer Ges Forschung | Polycrystalline diamond layer with optimized surface properties |
| US6491987B2 (en) * | 1999-05-03 | 2002-12-10 | Guardian Indusries Corp. | Process for depositing DLC inclusive coating with surface roughness on substrate |
| JP3914657B2 (en) * | 1999-05-11 | 2007-05-16 | カヤバ工業株式会社 | Piston surface treatment method |
| JP2001107860A (en) * | 1999-10-07 | 2001-04-17 | Matsushita Refrig Co Ltd | Sliding member |
| JP2001234858A (en) * | 1999-12-13 | 2001-08-31 | Sumitomo Heavy Ind Ltd | Gas compressor |
| JP3590579B2 (en) * | 2000-12-11 | 2004-11-17 | オーエスジー株式会社 | Diamond coated member and method of manufacturing the same |
| JP2003013958A (en) * | 2001-06-26 | 2003-01-15 | Nissan Motor Co Ltd | Slide bearing and manufacturing method |
| SE526481C2 (en) * | 2003-01-13 | 2005-09-20 | Sandvik Intellectual Property | Surface hardened stainless steel with improved abrasion resistance and low static friction |
| EP1479946B1 (en) * | 2003-05-23 | 2012-12-19 | Nissan Motor Co., Ltd. | Piston for internal combustion engine |
| CN100587045C (en) * | 2003-08-06 | 2010-02-03 | 日产自动车株式会社 | Low-friction sliding mechanism, low-friction agent composition and method of reducing friction |
| JP4539205B2 (en) * | 2003-08-21 | 2010-09-08 | 日産自動車株式会社 | Refrigerant compressor |
| JP4076169B2 (en) * | 2004-07-06 | 2008-04-16 | 株式会社豊田中央研究所 | Piston ring, piston, cylinder, piston pin with amorphous hard carbon film |
| US20080000348A1 (en) * | 2004-12-23 | 2008-01-03 | Bsh Bosch Und Siemens Hausgerate Gmbh | Linear Compressor |
| CN101365824B (en) * | 2005-08-18 | 2010-09-01 | 贝卡尔特股份有限公司 | Substrate coated with a layered structure comprising a tetrahedral carbon coating |
| JP4683288B2 (en) * | 2005-12-28 | 2011-05-18 | 株式会社豊田自動織機 | Sliding member |
| JP5030439B2 (en) * | 2006-02-28 | 2012-09-19 | 株式会社リケン | Sliding member |
| US20090286352A1 (en) * | 2006-04-18 | 2009-11-19 | Chien-Min Sung | Diamond Bodies Grown on SIC Substrates and Associated Methods |
| JP4954644B2 (en) * | 2006-08-31 | 2012-06-20 | 日本ピストンリング株式会社 | Combination of cylinder liner and piston ring |
| TW200927294A (en) * | 2007-09-14 | 2009-07-01 | Showa Denko Kk | Apparatus and method for coating double-sided substrate |
| JPWO2009069762A1 (en) * | 2007-11-30 | 2011-04-21 | 日本ピストンリング株式会社 | Piston ring steel and piston ring |
| DE102008011921A1 (en) * | 2008-02-29 | 2009-09-10 | Ks Kolbenschmidt Gmbh | Coating of components of an internal combustion engine to reduce friction, wear and adhesion tendency |
| JP2010025075A (en) * | 2008-07-24 | 2010-02-04 | Panasonic Corp | Sliding member and hermetic compressor |
| DE102009046281B3 (en) * | 2009-11-02 | 2010-11-25 | Federal-Mogul Burscheid Gmbh | Sliding element, in particular piston ring, and combination of a sliding element with a running partner |
-
2010
- 2010-12-27 BR BRPI1009955-7A patent/BRPI1009955A2/en not_active IP Right Cessation
-
2011
- 2011-12-08 EP EP11854223.2A patent/EP2659025A1/en not_active Withdrawn
- 2011-12-08 SG SG2013050299A patent/SG191408A1/en unknown
- 2011-12-08 CN CN201180064821.6A patent/CN103298972B/en not_active Expired - Fee Related
- 2011-12-08 WO PCT/BR2011/000460 patent/WO2012088571A1/en active Application Filing
- 2011-12-08 JP JP2013546527A patent/JP2014502691A/en active Pending
- 2011-12-08 KR KR1020137018894A patent/KR20140067961A/en not_active Application Discontinuation
- 2011-12-27 TW TW100149001A patent/TWI461605B/en not_active IP Right Cessation
- 2011-12-27 AR ARP110104945A patent/AR084603A1/en not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| JP2014502691A (en) | 2014-02-03 |
| CN103298972A (en) | 2013-09-11 |
| TW201235566A (en) | 2012-09-01 |
| EP2659025A1 (en) | 2013-11-06 |
| KR20140067961A (en) | 2014-06-05 |
| AR084603A1 (en) | 2013-05-29 |
| TWI461605B (en) | 2014-11-21 |
| BRPI1009955A2 (en) | 2013-06-11 |
| WO2012088571A1 (en) | 2012-07-05 |
| CN103298972B (en) | 2016-12-21 |
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