DE10158683A1 - Functional fluid based on glycols, polyglycols and/or polyol esters, useful for cooling and lubrication, especially in internal combustion engines, includes polysuccinimide - Google Patents
Functional fluid based on glycols, polyglycols and/or polyol esters, useful for cooling and lubrication, especially in internal combustion engines, includes polysuccinimideInfo
- Publication number
- DE10158683A1 DE10158683A1 DE10158683A DE10158683A DE10158683A1 DE 10158683 A1 DE10158683 A1 DE 10158683A1 DE 10158683 A DE10158683 A DE 10158683A DE 10158683 A DE10158683 A DE 10158683A DE 10158683 A1 DE10158683 A1 DE 10158683A1
- Authority
- DE
- Germany
- Prior art keywords
- polysuccinimide
- glycols
- functional fluid
- internal combustion
- cooling
- 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
Links
- 239000012530 fluid Substances 0.000 title claims abstract description 21
- 238000001816 cooling Methods 0.000 title claims abstract description 9
- 229920000151 polyglycol Polymers 0.000 title claims abstract description 9
- 239000010695 polyglycol Substances 0.000 title claims abstract description 9
- 150000002334 glycols Chemical class 0.000 title claims abstract description 8
- 229920005862 polyol Polymers 0.000 title claims abstract description 7
- -1 polyol esters Chemical class 0.000 title claims abstract description 7
- 238000002485 combustion reaction Methods 0.000 title claims description 15
- 238000005461 lubrication Methods 0.000 title abstract description 9
- 239000000203 mixture Substances 0.000 claims description 7
- 239000007788 liquid Substances 0.000 claims description 6
- 230000001050 lubricating effect Effects 0.000 claims description 4
- 239000000314 lubricant Substances 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 239000000654 additive Substances 0.000 description 4
- 239000002826 coolant Substances 0.000 description 3
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 231100001231 less toxic Toxicity 0.000 description 2
- 229920001515 polyalkylene glycol Polymers 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- 229920000805 Polyaspartic acid Polymers 0.000 description 1
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical class CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 238000004939 coking Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 231100001261 hazardous Toxicity 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 108010064470 polyaspartate Proteins 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 235000013772 propylene glycol Nutrition 0.000 description 1
- 239000004071 soot Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 230000002110 toxicologic effect Effects 0.000 description 1
- 231100000027 toxicology Toxicity 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K5/00—Heat-transfer, heat-exchange or heat-storage materials, e.g. refrigerants; Materials for the production of heat or cold by chemical reactions other than by combustion
- C09K5/08—Materials not undergoing a change of physical state when used
- C09K5/10—Liquid materials
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M169/00—Lubricating compositions characterised by containing as components a mixture of at least two types of ingredient selected from base-materials, thickeners or additives, covered by the preceding groups, each of these compounds being essential
- C10M169/04—Mixtures of base-materials and additives
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/02—Hydroxy compounds
- C10M2207/021—Hydroxy compounds having hydroxy groups bound to acyclic or cycloaliphatic carbon atoms
- C10M2207/022—Hydroxy compounds having hydroxy groups bound to acyclic or cycloaliphatic carbon atoms containing at least two hydroxy groups
- C10M2207/0225—Hydroxy compounds having hydroxy groups bound to acyclic or cycloaliphatic carbon atoms containing at least two hydroxy groups used as base material
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/28—Esters
- C10M2207/283—Esters of polyhydroxy compounds
- C10M2207/2835—Esters of polyhydroxy compounds used as base material
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
- C10M2209/10—Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C10M2209/103—Polyethers, i.e. containing di- or higher polyoxyalkylene groups
- C10M2209/1033—Polyethers, i.e. containing di- or higher polyoxyalkylene groups used as base material
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant Compositions
- C10M2215/24—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant Compositions having hydrocarbon substituents containing thirty or more carbon atoms, e.g. nitrogen derivatives of substituted succinic acid
- C10M2215/28—Amides; Imides
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/50—Emission or smoke controlling properties
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/64—Environmental friendly compositions
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/25—Internal-combustion engines
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Physics & Mathematics (AREA)
- Combustion & Propulsion (AREA)
- Thermal Sciences (AREA)
- Materials Engineering (AREA)
- Lubricants (AREA)
Abstract
Description
Die Erfindung betrifft eine Funktionsflüssigkeit zum Kühlen und Schmieren, vorzugsweise von Verbrennungsmotoren mit den im Oberbegriff des Patentanspruches 1 genannten Merkmalen. The invention relates to a functional fluid for cooling and lubricating, preferably of internal combustion engines with the in the preamble of claim 1 mentioned features.
Allgemein vorbekannt ist es, Glykole und Polyglykole für Schmierzwecke anzuwenden. Polyglykole weisen ein günstiges Viskositäts-Temperatur-Verhalten, selbst bei hohen Schergefällen eine hohe Scherstabilität und gutes Schmierverhalten sowie Verschleißschutz und Hochdruckeigenschaften bei Misch- und Grenzreibungszuständen auf. Bei thermischer Belastung zersetzen sie sich erst oberhalb 260°C, je nach Molekülstruktur und ohne Additive, rückstandslos. Durch Zusätze kann eine Beständigkeit gegen Oxidation erzielt werden. It is generally known to use glycols and polyglycols for lubrication purposes apply. Polyglycols have a favorable viscosity-temperature behavior, even with high shear rate, high shear stability and good lubrication behavior as well Wear protection and high pressure properties for mixing and Limit friction states. With thermal stress, they decompose only above 260 ° C, each according to molecular structure and without additives, residue-free. By adding one Resistance to oxidation can be achieved.
Angewandt werden vorzugsweise die flüssigen Polyethylenglykole mit einer molaren Masse von 200-400 g/mol, die wasserlöslich, biologisch schnell abbaubar, physiologisch unbedenklich und hautverträglich sind. Allgemein vorbekannt ist es auch, aus Polyalkylenglykolen, einer Mischung von Ethylen- und Propylenglykolen, synthetische Schmiermittel herzustellen. The liquid polyethylene glycols with a molar are preferably used Mass of 200-400 g / mol, which is water-soluble, biodegradable, are physiologically safe and skin-friendly. It is also generally known from Polyalkylene glycols, a mixture of ethylene and propylene glycols, to produce synthetic lubricants.
Durch die Schrift DE 196 47 554 A1 ist es vorbekannt, auf vorgenannter Basis Funktionsflüssigkeiten für Verbrennungsmotoren herzustellen, wobei Polyalkylenglykole mit einer Reihe von Additiven versetzt sind, die jedoch einen sehr geringen Gewichtsanteil, < 5 Gewichts-%, an der Flüssigkeit haben. Diese Funktionsflüssigkeiten sollen sowohl als Dauerschmierstoff als auch als Dauerkühlmittel zum Einsatz gelangen. Ihre besonderen Eigenschaften sind gute Wärmeübertragung, biologische Abbaubarkeit, kein Anteil von Schwermetallen und eine rauch- und rußfreie Verbrennung bei Verschleppung in Brennräumen. It is already known from the document DE 196 47 554 A1, on the aforementioned basis To produce functional fluids for internal combustion engines, wherein polyalkylene glycols are mixed with a number of additives, but they are very small Proportion by weight, <5% by weight, of the liquid. These functional fluids are intended to be used both as permanent lubricants and as permanent coolants reach. Their special properties are good heat transfer, biological Degradability, no heavy metals and a smoke and soot free Incineration in the event of carry-over in combustion chambers.
Die in der vorbeschriebenen Funktionsflüssigkeit verwendeten Additive erfüllen nicht die zukünftig relevanten, toxikologischen und ökologischen Kriterien, die z. B. im Entwurf der ISO CD15380, der ASTM D6046-96 oder für das deutsche Umweltzeichen UZ79 für Hydrauliköle gefordert sind. The additives used in the functional fluid described above do not meet the future relevant, toxicological and ecological criteria, e.g. B. in Draft ISO CD15380, ASTM D6046-96 or for the German environmental label UZ79 are required for hydraulic oils.
Die DE 100 49 175 stellt eine ältere, zum Zeitpunkt der Hinterlegung der Anmeldung noch nicht veröffentlichte, Anmeldung dar, bei der Polyasparaginsäure als Hochdruck-Verschleißschutzzusatz in wässrigen Schmierstoffsystemen auf der Basis von Glykolen oder Polyglykolen verwendet wird. DE 100 49 175 represents an older one at the time of filing the application not yet published, application in which polyaspartic acid as High pressure wear protection additive in aqueous lubricant systems based on Glycols or polyglycols is used.
Die auf Wasserbasis bestehende Funktionsflüssigkeit ist insbesondere geeignet für die hydrodynamische Schmierung von Gleitlagern, vorzugsweise für Kurbelwellen von Heißdampfmotoren. Aufgrund des hohen Wassergehaltes ist ein Einsatz der Funktionsflüssigkeit in Verbrennungsmotoren nicht vorgesehen. The water-based functional fluid is particularly suitable for the hydrodynamic lubrication of slide bearings, preferably for crankshafts of superheated steam engines. Due to the high water content, the Functional liquid is not provided in internal combustion engines.
Der Erfindung liegt die Aufgabe zugrunde, biologisch abbaubare und minder toxische wasserfreie Funktionsflüssigkeiten, vorzugsweise für Verbrennungsmotoren zu schaffen, die sowohl den thermischen und tribologischen Anforderungen der Schmierung als auch der Kühlung entsprechen und eine schadstoffarme sowie rauch- und rußfreie Verbrennung bei Verschleppung in Brennräume gewährleisten. The invention has for its object biodegradable and less toxic anhydrous functional fluids, preferably for internal combustion engines too create that meet both the thermal and tribological requirements of the Lubrication and cooling correspond and a low pollutant and smoke and Ensure soot-free combustion in the event of carry-over into combustion chambers.
Erfindungsgemäß wird dieses dadurch erreicht, dass in der auf der Basis von Glykolen, Polyglykolen, Polyolestern oder deren Mischungen hergestellten Funktionsflüssigkeit zum Kühlen und Schmieren vorzugsweise von Verbrennungsmotoren Polysuccinimid enthalten ist. Überraschend hat sich gezeigt, dass das in der Funktionsflüssigkeit im gelösten oder im dispergierten Zustand enthaltene Polysuccinimid sehr gute Hochdruckeigenschaften ausweist und somit neben der Kühlung besonders für die Schmierung von Verbrennungsmotoren geeignet ist. Die in dem Polysuccinimid enthaltenen polaren Moleküle sind verantwortlich für die guten Hochdruckeigenschaften und den Verschleißschutz der hergestellten Funktionsflüssigkeit. Weiterhin ist das Polysuccinimid eine naturidentische Substanz, die als schwach wassergefährdend in die "WGK 1" eingestuft und biologisch beziehungsweise biotisch abbaubar ist. Durch die Zusammensetzung der Funktionsflüssigkeit werden Korrosionen an den zu schmierenden und zu kühlenden Bauteilen vermieden. Bei einem Einsatz als Dauerschmier- und -kühlmittel in Verbrennungsmotoren sind die entsprechenden Motorbauteile dauerhaft gegen Korrosion geschützt. According to the invention, this is achieved in that polysuccinimide is preferably contained in the functional liquid for cooling and lubricating internal combustion engines which is produced on the basis of glycols, polyglycols, polyol esters or mixtures thereof. Surprisingly, it has been shown that the polysuccinimide contained in the functional liquid in the dissolved or in the dispersed state has very good high-pressure properties and is therefore, in addition to cooling, particularly suitable for the lubrication of internal combustion engines. The polar molecules contained in the polysuccinimide are responsible for the good high-pressure properties and the wear protection of the functional fluid produced. Furthermore, the polysuccinimide is a nature-identical substance that is classified as slightly water-endangering in the "WGK 1 " and is biodegradable or biodegradable. The composition of the functional fluid prevents corrosion on the components to be lubricated and cooled. When used as a permanent lubricant and coolant in internal combustion engines, the corresponding engine components are permanently protected against corrosion.
Ein weiterer Vorteil der erfindungsgemäßen Lösung besteht darin, dass sich das Polysuccinimid ohne Verwendung von Wasser in dem wasserfreien, auf der Basis von Glykol, Polyglykol, Polyolestern oder deren Mischungen bestehenden Schmiermittel lösen beziehungsweise dispergieren lässt. Aufgrund des wasserfreien Schmierstoffsystems lässt sich die erfindungsgemäße Funktionsflüssigkeit insbesondere als Schmier- und Kühlmittel für ölfrei geschmierte Dieselmotoren einsetzen. Another advantage of the solution according to the invention is that the Polysuccinimide without the use of water in the anhydrous, based on Glycol, polyglycol, polyol esters or their mixtures of existing lubricants dissolve or disperse. Because of the anhydrous Lubricant system, the functional fluid according to the invention can be in particular as Use lubricants and coolants for oil-free lubricated diesel engines.
Die in einer Funktionsflüssigkeit eingesetzten, an sich bekannten Glykole und Polyolester weisen bei hohen Schergefällen eine hohe Scherstabilität und gutes Schmierverhalten sowie Verschleißschutz und Hochdruckeigenschaften auf und werden wegen ihrer Wasserlöslichkeit als ebenfalls schwach wassergefährdend eingestuft. Sie lassen sich auch biologisch gut abbauen und sind un- beziehungsweise minder giftig. The glycols known per se and used in a functional fluid Polyol esters have high shear stability and good shear rates Lubrication behavior as well as wear protection and high pressure properties classified as also slightly hazardous to water due to their water solubility. she can also be easily biodegraded and are less or less toxic.
Durch die Zugabe von Polysuccinimid im gelösten oder dispergierten Zustand in auf der Basis von Glykolen, Polyglykolen, Polyolestern oder deren Mischungen bestehenden Funktionsflüssigkeiten entsteht eine wasserfreie Funktionsflüssigkeit, die den tribologischen Anforderungen der Schmierung als auch der Kühlung entspricht und die an sich bekannten Funktionsflüssigkeiten hinsichtlich ihrer Hochdruckeigenschaften und ihrer Schmier- und Kühlwirkung übertrifft. Bei einer eventuellen Verschleppung der erfindungsgemäßen Funktionsflüssigkeit in den Brennraum des Verbrennungsmotors erfolgt auf Grund der Zusammensetzung der Funktionsflüssigkeit eine nicht kokende schadstoffarme sowie rauch- und rußfreie Verbrennung der einzelnen Bestandteile. Insgesamt ist die erfindungsgemäße Funktionsflüssigkeit nur schwach wassergefährdend, biologisch abbaubar und toxisch unbedenklich. Außerdem zeichnen sie sich durch eine lange Funktionstüchtigkeit aus, so dass die notwendigen Wartungsintervalle zur Auswechslung der Funktionsflüssigkeit erhöht werden können. By adding polysuccinimide in dissolved or dispersed state the basis of glycols, polyglycols, polyol esters or their mixtures existing functional fluids, an anhydrous functional fluid is created which corresponds to the tribological requirements of the lubrication as well as the cooling and the known functional fluids with regard to their High pressure properties and their lubricating and cooling effect surpasses. In the event of a possible Carryover of the functional fluid according to the invention into the combustion chamber of the Internal combustion engine is based on the composition of the functional fluid non-coking low-pollutant and smoke-free and soot-free combustion of the individual Ingredients. Overall, the functional fluid according to the invention is only weak water polluting, biodegradable and toxic harmless. Moreover are characterized by a long functionality, so that the necessary Maintenance intervals for changing the functional fluid are increased can.
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10158683A DE10158683A1 (en) | 2001-11-23 | 2001-11-23 | Functional fluid based on glycols, polyglycols and/or polyol esters, useful for cooling and lubrication, especially in internal combustion engines, includes polysuccinimide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10158683A DE10158683A1 (en) | 2001-11-23 | 2001-11-23 | Functional fluid based on glycols, polyglycols and/or polyol esters, useful for cooling and lubrication, especially in internal combustion engines, includes polysuccinimide |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE10158683A1 true DE10158683A1 (en) | 2003-06-05 |
Family
ID=7707454
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE10158683A Ceased DE10158683A1 (en) | 2001-11-23 | 2001-11-23 | Functional fluid based on glycols, polyglycols and/or polyol esters, useful for cooling and lubrication, especially in internal combustion engines, includes polysuccinimide |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE10158683A1 (en) |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1505322A1 (en) * | 2003-08-08 | 2005-02-09 | Nissan Motor Co., Ltd. | Sliding member and production process thereof |
| US7134381B2 (en) | 2003-08-21 | 2006-11-14 | Nissan Motor Co., Ltd. | Refrigerant compressor and friction control process therefor |
| US7146956B2 (en) | 2003-08-08 | 2006-12-12 | Nissan Motor Co., Ltd. | Valve train for internal combustion engine |
| US7228786B2 (en) | 2003-06-06 | 2007-06-12 | Nissan Motor Co., Ltd. | Engine piston-pin sliding structure |
| US7255083B2 (en) | 2002-10-16 | 2007-08-14 | Nissan Motor Co., Ltd. | Sliding structure for automotive engine |
| US7273655B2 (en) | 1999-04-09 | 2007-09-25 | Shojiro Miyake | Slidably movable member and method of producing same |
| US7284525B2 (en) | 2003-08-13 | 2007-10-23 | Nissan Motor Co., Ltd. | Structure for connecting piston to crankshaft |
| US7318514B2 (en) | 2003-08-22 | 2008-01-15 | Nissan Motor Co., Ltd. | Low-friction sliding member in transmission, and transmission oil therefor |
| US7322749B2 (en) | 2002-11-06 | 2008-01-29 | Nissan Motor Co., Ltd. | Low-friction sliding mechanism |
| US7406940B2 (en) | 2003-05-23 | 2008-08-05 | Nissan Motor Co., Ltd. | Piston for internal combustion engine |
| US7500472B2 (en) | 2003-04-15 | 2009-03-10 | Nissan Motor Co., Ltd. | Fuel injection valve |
| US7572200B2 (en) | 2003-08-13 | 2009-08-11 | Nissan Motor Co., Ltd. | Chain drive system |
| US7771821B2 (en) | 2003-08-21 | 2010-08-10 | Nissan Motor Co., Ltd. | Low-friction sliding member and low-friction sliding mechanism using same |
| US8096205B2 (en) | 2003-07-31 | 2012-01-17 | Nissan Motor Co., Ltd. | Gear |
| US8206035B2 (en) | 2003-08-06 | 2012-06-26 | Nissan Motor Co., Ltd. | Low-friction sliding mechanism, low-friction agent composition and method of friction reduction |
-
2001
- 2001-11-23 DE DE10158683A patent/DE10158683A1/en not_active Ceased
Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7273655B2 (en) | 1999-04-09 | 2007-09-25 | Shojiro Miyake | Slidably movable member and method of producing same |
| US7255083B2 (en) | 2002-10-16 | 2007-08-14 | Nissan Motor Co., Ltd. | Sliding structure for automotive engine |
| US8152377B2 (en) | 2002-11-06 | 2012-04-10 | Nissan Motor Co., Ltd. | Low-friction sliding mechanism |
| US7322749B2 (en) | 2002-11-06 | 2008-01-29 | Nissan Motor Co., Ltd. | Low-friction sliding mechanism |
| US7500472B2 (en) | 2003-04-15 | 2009-03-10 | Nissan Motor Co., Ltd. | Fuel injection valve |
| US7406940B2 (en) | 2003-05-23 | 2008-08-05 | Nissan Motor Co., Ltd. | Piston for internal combustion engine |
| US7228786B2 (en) | 2003-06-06 | 2007-06-12 | Nissan Motor Co., Ltd. | Engine piston-pin sliding structure |
| US8096205B2 (en) | 2003-07-31 | 2012-01-17 | Nissan Motor Co., Ltd. | Gear |
| US8206035B2 (en) | 2003-08-06 | 2012-06-26 | Nissan Motor Co., Ltd. | Low-friction sliding mechanism, low-friction agent composition and method of friction reduction |
| EP1990564A1 (en) * | 2003-08-08 | 2008-11-12 | Nissan Motor Co., Ltd. | Sliding member and production process thereof |
| EP1505322A1 (en) * | 2003-08-08 | 2005-02-09 | Nissan Motor Co., Ltd. | Sliding member and production process thereof |
| US7458585B2 (en) | 2003-08-08 | 2008-12-02 | Nissan Motor Co., Ltd. | Sliding member and production process thereof |
| US7146956B2 (en) | 2003-08-08 | 2006-12-12 | Nissan Motor Co., Ltd. | Valve train for internal combustion engine |
| US8575076B2 (en) | 2003-08-08 | 2013-11-05 | Nissan Motor Co., Ltd. | Sliding member and production process thereof |
| US7572200B2 (en) | 2003-08-13 | 2009-08-11 | Nissan Motor Co., Ltd. | Chain drive system |
| US7284525B2 (en) | 2003-08-13 | 2007-10-23 | Nissan Motor Co., Ltd. | Structure for connecting piston to crankshaft |
| US7771821B2 (en) | 2003-08-21 | 2010-08-10 | Nissan Motor Co., Ltd. | Low-friction sliding member and low-friction sliding mechanism using same |
| US7134381B2 (en) | 2003-08-21 | 2006-11-14 | Nissan Motor Co., Ltd. | Refrigerant compressor and friction control process therefor |
| US7318514B2 (en) | 2003-08-22 | 2008-01-15 | Nissan Motor Co., Ltd. | Low-friction sliding member in transmission, and transmission oil therefor |
| US7650976B2 (en) | 2003-08-22 | 2010-01-26 | Nissan Motor Co., Ltd. | Low-friction sliding member in transmission, and transmission oil therefor |
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