Fuchs Europe Schmierstoffe GmbH

Fuchs, Germany

Fuchs Europe Schmierstoffe GmbH

Fuchs, Germany
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Fiedler M.,Hamburg University of Applied Sciences | Kuhn E.,Hamburg University of Applied Sciences | Franco J.M.,University of Huelva | Litters T.,Fuchs Europe Schmierstoffe GmbH
Tribology Letters | Year: 2011

Friction and wear tests were performed with a number of greases based on biogenic esters and thickened with two metal soaps and a highly dispersed silica acid gel. The series of experiments was performed on a Nonotribometer in material combination of sapphire ball on steel disks with a range of normal loads from 1 up to 500 mN. Results directly show influences of the bulk grease components on frictional and wear behavior. Comparison of frictional and wear results makes manifest that, while in most combinations of base oil and thickener, the highest influence is found in the thickening agent, some combinations are mainly influenced by the base oil. All frictional results along with wear widths and depths as well as micrographs of the prevailing wear mechanisms are presented and discussed. © 2011 Springer Science+Business Media, LLC.

Agency: European Commission | Branch: H2020 | Program: IA | Phase: EE-17-2016-2017 | Award Amount: 6.47M | Year: 2016

The overall objective of the DRYficiency project is to lead energy-intensive sectors of the European manufacturing industry to high energy efficiency and a reduction of fossil carbon emissions by means of waste heat recovery to foster competitiveness, improve security of energy supply and guarantee sustainable production in Europe. The project addresses three sectors, namely brick, pet care/feed and food industry. The results are however of major relevance for a number of other energy-intensive industries such as e.g. pulp and paper industry. The DRYficiency consortium will elaborate technically and economically viable solutions for upgrading idle waste heat streams to process heat streams at higher temperature levels up to 180 C. The key elements of the solution are two high temperature vapour compression heat pumps: a closed loop heat pump for air drying processes and an open loop heat pump for steam drying processes. The DRYficiency solution will be demonstrated under real production conditions in operational industrial drying processes in three leading European manufacturing companies from the pet food, food and brick industries. The potential of the technology demonstrated is to reduce the specific energy demand for drying and dehydration from 700-800 kWh per ton down to 200 kWh per ton of evaporated water. The energy switch from fossil fuels towards heat pump technology reduces the environmental impact considerably and offers at the same time a potential for energy savings of up to 60-80 %. This will lead to substantial reduction of energy costs and consequently lower specific product costs resulting in a significantly improved competitiveness.

Gili F.,Fiat Group | Igartua A.,Fundacion Tekniker | Luther R.,Fuchs Europe Schmierstoffe GmbH | Woydt M.,BAM Federal Institute of Materials Research and Testing
Lubrication Science | Year: 2011

The dilution of biogenic fuels into lubricating engine oils often leads to a shortening of the recommended oil drains (between 30% and 60%) and an increase in wear. The large number of overlapping and influencing factors, of which dilution and polymerization of fuel components in the engine oil are emphasised, makes it difficult to find a uniform solution to prevent failures in the various applications. Insofar single solutions for the different types of biofuels are needed. The contribution of base oil chemistry and additives as well as triboactive materials is featured to deal with the adverse effects of biofuels. In the frame of the European Commission (EC)-funded project 'cleanengine', tentative engine oils based on esters with a content of renewables and polyglycols are formulated to increase the lubricant's tolerance in engines fuelled with biofuel-based blends, with the aim of ensuring required lubricating and wear protection performance while keeping oil drain intervals unchanged. The present paper focuses on four-stroke diesel applications, fuelled by biodiesel (fatty acid methyl ester â FAME) as well as by rapeseed oil and Jatropha oil (pure vegetable oils, triglycerides), together with relevant blends of those biofuels and conventional diesel fuel. This paper screens the functional profile (in particular rheological, toxicological, bio-compatibility, tribological and biofuels affinity) of lube families with respect to biofuel contamination. Moreover, this is followed by the contributions of piston ring and liner materials as well as thin film coatings. Copyright © 2011 John Wiley & Sons, Ltd. Copyright © 2011 John Wiley & Sons, Ltd.

Braun J.,Fuchs Europe Schmierstoffe GmbH
Sealing Technology | Year: 2011

This feature article looks at the new ISO methods for elastomer testing and specifying standard reference elastomers. Current methods are compared with those specified by previous DIN standards, the differences are pointed out and their effects on the test results are discussed. © 2011 Elsevier Ltd.

Bock W.,Fuchs Europe Schmierstoffe GmbH | Puhl C.,Fuchs Europe Schmierstoffe GmbH
Tribologie und Schmierungstechnik | Year: 2014

The varying operating characteristics of turbines in German power stations resulting from the German Renewable Energy Act represent additional strain for turbine oils. Starting up and shutting down, higher temperatures, lower temperatures - even combined with generally lower oil volumes and higher oil circulation rates - mean additional stress for turbine oils. Furthermore, there are higher expectations with regard to the service life, suitability and robustness of the turbine oil used. Varnish problems (deposits, lacquer formation) constantly arise in turbine circulation systems, resulting in considerable operational problems.In this article the special properties of RENOLIN ETERNA, a series of latest generation turbine oils is introduced. In particular, special emphasis is placed on the low depositing tendency (low varnish oil), the excellent air release property and the high resistance to aging. The text refers also to useful and important test methods to classify both new and used turbine oils.

Sgroi M.,Fiat Group | Gili F.,Fiat Group | Mangherini D.,Fiat Group | Lahouij I.,École Centrale Lyon | And 4 more authors.
Tribology Transactions | Year: 2015

The development of new advanced lubricants is a key factor for the production of cleaner and more durable internal combustion engines. New improved antifriction and antiwear additives are required. The inclusion of nanoparticles known as solid lubricants (MoS2 and WS2 inorganic fullerenes) in fully formulated engine oils could help to improve the performance of the lubricant and of the engine.The AddNano Consortium, partially funded by the European Commission, investigated the possibility of including inorganic fullerenes in the formulation of engine oils. MoS2 nanoparticles integrated in the additive package of an SAE 5W30 engine oil showed a 50% reduction in the coefficient of friction in tribological lab-scale experiments. The nano-oil was formulated by modifying the additive package in order to stably disperse the nanoparticles and avoid counterproductive interactions with the other components of the package (antifoam, antioxidant, detergents, antiwear and antifriction additives).In the present work, characterization of the nanolubricants on a bench test simulating the real tribological conditions encountered in the valve-train of a diesel engine is reported. transmission electron microscopy (TEM) and X-ray photoelectron spectroscopy (XPS) were used to characterize the nanoparticles and the rubbed surfaces. © 2015, Copyright © Society of Tribologists and Lubrication Engineers.

Koskinen J.,University of Helsinki | Tapper U.,VTT Technical Research Center of Finland | Andersson P.,VTT Technical Research Center of Finland | Varjus S.,VTT Technical Research Center of Finland | And 3 more authors.
Surface and Coatings Technology | Year: 2010

It has been demonstrated that tetrahedral amorphous carbon (ta-C) films provide excellent wear and friction properties in dry sliding. Recently the applications of ta-C coatings in lubricated conditions have become more important. The use of carbon coatings aims at reducing the wear and coefficient of friction under minimum lubrication and without hazardous lubricant additives. For optimum tribological performance, a modification of the ta-C coated surfaces is required. The present paper describes an innovative method of coated surface texturing, by which nanometer and micrometer size pores are processed by various methods. Particle masking was used for processing micrometer size pores and for controlling the coating growth conditions in order to produce nanometer size pores in the ta-C surface. The masking by particles yielded a pore geometry which varied from complex shaped channels to small individual pores. The texturing was performed by distributing metallic powder particles on the surface or by direct chemical deposition of metal particles on the substrate in prior to pulsed vacuum arc deposition. The tribological characterization was carried out by applying reciprocating friction tests with controlled lubricant replenishment, in order to simulate metal forming processes. The friction reducing effect, which was observed in the tribological tests, indicated a microlubrication effect of the textured coating surfaces. © 2010 Elsevier B.V.

Fundus A.,Fuchs Europe Schmierstoffe GmbH | Losch A.,Fuchs Europe Schmierstoffe GmbH
Tribologie und Schmierungstechnik | Year: 2015

The most important lubricant used in the body-in-white process is prelube, which combines both corrosion protection and forming properties. It is well established for almost two decades and meets the approval of the VDA. In recent years, due to trends such as low autobody weight and manufacturing cost reduction, new challenges in automotive sheet metal forming have appeared. The increased implementation of high strength steel, aluminium and hot dip galvanized zinc coatings together with higher forming temperatures grow in significance but also cause more problems like abrasion and galling. At the same time, enhanced quality demands of the appearance of outer parts and less scrap rates are aimed for. The next generation of prelubes, so-called Prelube 2, with increased forming properties contribute substantially to accomplish those requirements. This publication presents comparative tribological results of the VDA standard prelube ANTICORIT PL 3802 39 S and its next generation successor ANTICORIT PLS 100 T with different metal substrates. Further parameters in the test series were drawing speed, drawing temperature and the oil film thickness.

Bock W.,Fuchs Europe Schmierstoffe GmbH | Heinemann H.,Fuchs Europe Schmierstoffe GmbH
17th International Colloquium Tribology 2010 - Solving Friction and Wear Problems | Year: 2010

A presentation covers hydraulic fluids; base oil classification; advantages of multigrade fuels; requirements of high-performance multigrade fluids; and efficiency of hydraulic system. This is an abstract of a paper presented at the 17th International Colloquium Tribology (Stuttgart/Ostfildern, Germany 1/19-21/2010).

Litters T.,Fuchs Europe Schmierstoffe GmbH | Zaki N.,Fuchs Lubricants Inc.
17th International Colloquium Tribology 2010 - Solving Friction and Wear Problems | Year: 2010

This paper reports about experiments with a high-resolution oscillatory viscometer where model greases were tested at -40°C. The aim was to study the influence of thickener and base oil composition on the visco-elastic properties of lubricating greases at low temperatures.

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