Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Oil change due? Optimal date is to be determined during normal operation

14.04.2010
If lubricants and hydraulic fluids in construction machines, airplanes or industrial installations are used too long, gears and other components can be heavily damaged.

On the other hand, each oil change especially for large equipment is time consuming and expensive. Engineers at Saarland University and the new Center for Mechatronics and Automation (ZeMA) are developing a new method for determining the oil quality during normal operation. The measurement approach will indicate exactly when the oil should be changed. The development will be presented from April 19 to 23 at the Saarland research booth at the Hannover Industrial Trade Fair (Hall 2, Stand C 44).

Today additives are used to make lubricants for gears or hydraulic fluids more durable. However, when the additives are worn out by aging processes, the oil quality will deteriorate rapidly. "Due to this fact the oil is changed very early to prevent damaging the expensive equipment in many applications", Andreas Schütze, Professor for measurement technology at Saarland University, says. His team is currently developing a measurement cell together with academic and industrial partners, which can be mounted directly in hydraulic systems. Using an infrared light source based on silicon micromachining the oil is screened. An infrared detector determines which wavelengths pass through the fluid. The more the oil is aged the more the detected light pattern is changed. "This allows indicating the optimal time for the next oil change. In addition, we can also determine if the system was contaminated by water", the engineer explains.

The measurement cell can currently be used up to a pressure of 100 bar. In the future this range will be expanded to address further applications, e.g. in airplane hydraulics. Also the method will be applied to other fluids like alcohol or glycol. "Today laboratory analytical techniques are used to determine the aging of fluids. We are trying to measure the wear during normal operation", Andreas Schütze says. This is especially important for closed hydraulic systems , e.g. in airplanes. But also application areas like automotive could benefit, if the cell can be produced cheaply in high volumes. "Considering the high oil volumes, e.g. in large hydraulic installations, optimized oil change intervals are not only much more cost effective. The environment will also benefit, by less waste of oil. So the total demand of oil can be reduced and the consumption of this expensive resource is more economic", Schütze explains.

The method is developed in close cooperation with the new Center for Mechatronics and Automation (ZeMA) in Saarbrücken. The primary goal of ZeMA is application oriented research and the transfer of new methods from academia to industrial application. ZeMA works together with Saarland University, the University of Applied Sciences (HTW) as well with partners from industry. ZeMA addresses challenging projects with the goal of improving the efficiency of industrial processes.

For further questions:

Prof. Dr. Andreas Schütze
Laboratory for Measurement Technology at Saarland University
Phone +49 (0) 681 / 302 4663
E-Mail: schuetze@lmt.uni-saarland.de
Dipl.-Ing. Torsten Bley
Phone +49 (0) 681 / 302 5017
Phone +49 (0) 511 / 89 497101 (at the Hannover Fair booth)
E-Mail: torsten.bley@mechatronikzentrum.de
Dr.-Ing. Alexander Kraus
ZeMA - Zentrum für Mechatronik und Automatisierungstechnik gemeinnützige GmbH
Tel. +49 (0) 681 / 58 67600
E-Mail: info@mechatronikzentrum.de
Information for radio journalists:
You can do phone interviews in studio-quality with scientists from the University of the Saarland, on radio ISDN codec. For interview requests please contact the press office (0681/302-3610)

Friederike Meyer zu Tittingdorf | idw
Further information:
http://www.lmt.uni-saarland.de
http://www.mechatronikzentrum.de
http://www.uni-saarland.de/pressefotos

More articles from Machine Engineering:

nachricht LZH optimizes laser-based CFRP reworking for the aircraft industry
24.11.2016 | Laser Zentrum Hannover e.V.

nachricht eldec generators CUSTOM LINE: Customized energy source for perfect induction heating
23.11.2016 | EMAG eldec Induction GmbH

All articles from Machine Engineering >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Designing Architecture with Solar Building Envelopes

Among the general public, solar thermal energy is currently associated with dark blue, rectangular collectors on building roofs. Technologies are needed for aesthetically high quality architecture which offer the architect more room for manoeuvre when it comes to low- and plus-energy buildings. With the “ArKol” project, researchers at Fraunhofer ISE together with partners are currently developing two façade collectors for solar thermal energy generation, which permit a high degree of design flexibility: a strip collector for opaque façade sections and a solar thermal blind for transparent sections. The current state of the two developments will be presented at the BAU 2017 trade fair.

As part of the “ArKol – development of architecturally highly integrated façade collectors with heat pipes” project, Fraunhofer ISE together with its partners...

Im Focus: How to inflate a hardened concrete shell with a weight of 80 t

At TU Wien, an alternative for resource intensive formwork for the construction of concrete domes was developed. It is now used in a test dome for the Austrian Federal Railways Infrastructure (ÖBB Infrastruktur).

Concrete shells are efficient structures, but not very resource efficient. The formwork for the construction of concrete domes alone requires a high amount of...

Im Focus: Bacterial Pac Man molecule snaps at sugar

Many pathogens use certain sugar compounds from their host to help conceal themselves against the immune system. Scientists at the University of Bonn have now, in cooperation with researchers at the University of York in the United Kingdom, analyzed the dynamics of a bacterial molecule that is involved in this process. They demonstrate that the protein grabs onto the sugar molecule with a Pac Man-like chewing motion and holds it until it can be used. Their results could help design therapeutics that could make the protein poorer at grabbing and holding and hence compromise the pathogen in the host. The study has now been published in “Biophysical Journal”.

The cells of the mouth, nose and intestinal mucosa produce large quantities of a chemical called sialic acid. Many bacteria possess a special transport system...

Im Focus: Newly proposed reference datasets improve weather satellite data quality

UMD, NOAA collaboration demonstrates suitability of in-orbit datasets for weather satellite calibration

"Traffic and weather, together on the hour!" blasts your local radio station, while your smartphone knows the weather halfway across the world. A network of...

Im Focus: Repairing defects in fiber-reinforced plastics more efficiently

Fiber-reinforced plastics (FRP) are frequently used in the aeronautic and automobile industry. However, the repair of workpieces made of these composite materials is often less profitable than exchanging the part. In order to increase the lifetime of FRP parts and to make them more eco-efficient, the Laser Zentrum Hannover e.V. (LZH) and the Apodius GmbH want to combine a new measuring device for fiber layer orientation with an innovative laser-based repair process.

Defects in FRP pieces may be production or operation-related. Whether or not repair is cost-effective depends on the geometry of the defective area, the tools...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

12V, 48V, high-voltage – trends in E/E automotive architecture

10.01.2017 | Event News

2nd Conference on Non-Textual Information on 10 and 11 May 2017 in Hannover

09.01.2017 | Event News

Nothing will happen without batteries making it happen!

05.01.2017 | Event News

 
Latest News

Multiregional brain on a chip

16.01.2017 | Power and Electrical Engineering

New technology enables 5-D imaging in live animals, humans

16.01.2017 | Information Technology

Researchers develop environmentally friendly soy air filter

16.01.2017 | Power and Electrical Engineering

VideoLinks
B2B-VideoLinks
More VideoLinks >>>